Mercurial > mm7
diff lib/legacy_dx/strsafe.h @ 0:9c0607679772
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| author | Ritor1 |
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| date | Sat, 12 Jan 2013 09:45:18 +0600 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lib/legacy_dx/strsafe.h Sat Jan 12 09:45:18 2013 +0600 @@ -0,0 +1,6611 @@ +/****************************************************************** +* * +* strsafe.h -- This module defines safer C library string * +* routine replacements. These are meant to make C * +* a bit more safe in reference to security and * +* robustness * +* * +* Copyright (c) Microsoft Corp. All rights reserved. * +* * +******************************************************************/ +#ifndef _STRSAFE_H_INCLUDED_ +#define _STRSAFE_H_INCLUDED_ +#pragma once + +#include <stdio.h> // for _vsnprintf, _vsnwprintf, getc, getwc +#include <string.h> // for memset +#include <stdarg.h> // for va_start, etc. + + +#ifndef _SIZE_T_DEFINED +#ifdef _WIN64 +typedef unsigned __int64 size_t; +#else +typedef __w64 unsigned int size_t; +#endif // !_WIN64 +#define _SIZE_T_DEFINED +#endif // !_SIZE_T_DEFINED + +#if !defined(_WCHAR_T_DEFINED) && !defined(_NATIVE_WCHAR_T_DEFINED) +typedef unsigned short wchar_t; +#define _WCHAR_T_DEFINED +#endif + +#ifndef _HRESULT_DEFINED +#define _HRESULT_DEFINED +typedef long HRESULT; +#endif // !_HRESULT_DEFINED + +#ifndef SUCCEEDED +#define SUCCEEDED(hr) ((HRESULT)(hr) >= 0) +#endif + +#ifndef FAILED +#define FAILED(hr) ((HRESULT)(hr) < 0) +#endif + +#ifndef S_OK +#define S_OK ((HRESULT)0x00000000L) +#endif + +#ifdef __cplusplus +#define _STRSAFE_EXTERN_C extern "C" +#else +#define _STRSAFE_EXTERN_C extern +#endif + +// If you do not want to use these functions inline (and instead want to link w/ strsafe.lib), then +// #define STRSAFE_LIB before including this header file. +#if defined(STRSAFE_LIB) +#define STRSAFEAPI _STRSAFE_EXTERN_C HRESULT __stdcall +#pragma comment(lib, "strsafe.lib") +#elif defined(STRSAFE_LIB_IMPL) +#define STRSAFEAPI _STRSAFE_EXTERN_C HRESULT __stdcall +#else +#define STRSAFEAPI __inline HRESULT __stdcall +#define STRSAFE_INLINE +#endif + +// Some functions always run inline because they use stdin and we want to avoid building multiple +// versions of strsafe lib depending on if you use msvcrt, libcmt, etc. +#define STRSAFE_INLINE_API __inline HRESULT __stdcall + +// The user can request no "Cb" or no "Cch" fuctions, but not both! +#if defined(STRSAFE_NO_CB_FUNCTIONS) && defined(STRSAFE_NO_CCH_FUNCTIONS) +#error cannot specify both STRSAFE_NO_CB_FUNCTIONS and STRSAFE_NO_CCH_FUNCTIONS !! +#endif + +// This should only be defined when we are building strsafe.lib +#ifdef STRSAFE_LIB_IMPL +#define STRSAFE_INLINE +#endif + + +// If both strsafe.h and ntstrsafe.h are included, only use definitions from one. +#ifndef _NTSTRSAFE_H_INCLUDED_ + +#define STRSAFE_MAX_CCH 2147483647 // max # of characters we support (same as INT_MAX) + +// Flags for controling the Ex functions +// +// STRSAFE_FILL_BYTE(0xFF) 0x000000FF // bottom byte specifies fill pattern +#define STRSAFE_IGNORE_NULLS 0x00000100 // treat null as TEXT("") -- don't fault on NULL buffers +#define STRSAFE_FILL_BEHIND_NULL 0x00000200 // fill in extra space behind the null terminator +#define STRSAFE_FILL_ON_FAILURE 0x00000400 // on failure, overwrite pszDest with fill pattern and null terminate it +#define STRSAFE_NULL_ON_FAILURE 0x00000800 // on failure, set *pszDest = TEXT('\0') +#define STRSAFE_NO_TRUNCATION 0x00001000 // instead of returning a truncated result, copy/append nothing to pszDest and null terminate it + +#define STRSAFE_VALID_FLAGS (0x000000FF | STRSAFE_IGNORE_NULLS | STRSAFE_FILL_BEHIND_NULL | STRSAFE_FILL_ON_FAILURE | STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION) + +// helper macro to set the fill character and specify buffer filling +#define STRSAFE_FILL_BYTE(x) ((unsigned long)((x & 0x000000FF) | STRSAFE_FILL_BEHIND_NULL)) +#define STRSAFE_FAILURE_BYTE(x) ((unsigned long)((x & 0x000000FF) | STRSAFE_FILL_ON_FAILURE)) + +#define STRSAFE_GET_FILL_PATTERN(dwFlags) ((int)(dwFlags & 0x000000FF)) + +#endif // _NTSTRSAFE_H_INCLUDED_ + +// STRSAFE error return codes +// +#define STRSAFE_E_INSUFFICIENT_BUFFER ((HRESULT)0x8007007AL) // 0x7A = 122L = ERROR_INSUFFICIENT_BUFFER +#define STRSAFE_E_INVALID_PARAMETER ((HRESULT)0x80070057L) // 0x57 = 87L = ERROR_INVALID_PARAMETER +#define STRSAFE_E_END_OF_FILE ((HRESULT)0x80070026L) // 0x26 = 38L = ERROR_HANDLE_EOF + +// prototypes for the worker functions +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCopyWorkerA(char* pszDest, size_t cchDest, const char* pszSrc); +STRSAFEAPI StringCopyWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc); +STRSAFEAPI StringCopyExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCopyExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCopyNWorkerA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchSrc); +STRSAFEAPI StringCopyNWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchSrc); +STRSAFEAPI StringCopyNExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, size_t cchSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCopyNExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, size_t cchSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCatWorkerA(char* pszDest, size_t cchDest, const char* pszSrc); +STRSAFEAPI StringCatWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc); +STRSAFEAPI StringCatExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCatExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCatNWorkerA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchMaxAppend); +STRSAFEAPI StringCatNWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchMaxAppend); +STRSAFEAPI StringCatNExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, size_t cchMaxAppend, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCatNExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, size_t cchMaxAppend, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringVPrintfWorkerA(char* pszDest, size_t cchDest, const char* pszFormat, va_list argList); +STRSAFEAPI StringVPrintfWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszFormat, va_list argList); +STRSAFEAPI StringVPrintfExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const char* pszFormat, va_list argList); +STRSAFEAPI StringVPrintfExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const wchar_t* pszFormat, va_list argList); +STRSAFEAPI StringLengthWorkerA(const char* psz, size_t cchMax, size_t* pcch); +STRSAFEAPI StringLengthWorkerW(const wchar_t* psz, size_t cchMax, size_t* pcch); +#endif // STRSAFE_INLINE + +#ifndef STRSAFE_LIB_IMPL +// these functions are always inline +STRSAFE_INLINE_API StringGetsExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFE_INLINE_API StringGetsExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +#endif + +#ifdef _NTSTRSAFE_H_INCLUDED_ +#pragma warning(push) +#pragma warning(disable : 4995) +#endif // _NTSTRSAFE_H_INCLUDED_ + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCopy( + OUT LPTSTR pszDest, + IN size_t cchDest, + IN LPCTSTR pszSrc + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcpy'. + The size of the destination buffer (in characters) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This routine is not a replacement for strncpy. That function will pad the + destination string with extra null termination characters if the count is + greater than the length of the source string, and it will fail to null + terminate the destination string if the source string length is greater + than or equal to the count. You can not blindly use this instead of strncpy: + it is common for code to use it to "patch" strings and you would introduce + errors if the code started null terminating in the middle of the string. + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was copied without truncation and null terminated, + otherwise it will return a failure code. In failure cases as much of + pszSrc will be copied to pszDest as possible, and pszDest will be null + terminated. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + length must be = (_tcslen(src) + 1) to hold all of the + source including the null terminator + + pszSrc - source string which must be null terminated + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCchCopyEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +STRSAFEAPI StringCchCopyA(char* pszDest, size_t cchDest, const char* pszSrc); +STRSAFEAPI StringCchCopyW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc); +#ifdef UNICODE +#define StringCchCopy StringCchCopyW +#else +#define StringCchCopy StringCchCopyA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCopyA(char* pszDest, size_t cchDest, const char* pszSrc) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyWorkerA(pszDest, cchDest, pszSrc); + } + + return hr; +} + +STRSAFEAPI StringCchCopyW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyWorkerW(pszDest, cchDest, pszSrc); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCopy( + OUT LPTSTR pszDest, + IN size_t cbDest, + IN LPCTSTR pszSrc + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcpy'. + The size of the destination buffer (in bytes) is a parameter and this + function will not write past the end of this buffer and it will ALWAYS + null terminate the destination buffer (unless it is zero length). + + This routine is not a replacement for strncpy. That function will pad the + destination string with extra null termination characters if the count is + greater than the length of the source string, and it will fail to null + terminate the destination string if the source string length is greater + than or equal to the count. You can not blindly use this instead of strncpy: + it is common for code to use it to "patch" strings and you would introduce + errors if the code started null terminating in the middle of the string. + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was copied without truncation and null terminated, + otherwise it will return a failure code. In failure cases as much of pszSrc + will be copied to pszDest as possible, and pszDest will be null terminated. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + length must be = ((_tcslen(src) + 1) * sizeof(TCHAR)) to + hold all of the source including the null terminator + + pszSrc - source string which must be null terminated + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCbCopyEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +STRSAFEAPI StringCbCopyA(char* pszDest, size_t cbDest, const char* pszSrc); +STRSAFEAPI StringCbCopyW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc); +#ifdef UNICODE +#define StringCbCopy StringCbCopyW +#else +#define StringCbCopy StringCbCopyA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCopyA(char* pszDest, size_t cbDest, const char* pszSrc) +{ + HRESULT hr; + size_t cchDest; + + // convert to count of characters + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyWorkerA(pszDest, cchDest, pszSrc); + } + + return hr; +} + +STRSAFEAPI StringCbCopyW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc) +{ + HRESULT hr; + size_t cchDest; + + // convert to count of characters + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyWorkerW(pszDest, cchDest, pszSrc); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCopyEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + IN LPCTSTR pszSrc OPTIONAL, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcpy' with + some additional parameters. In addition to functionality provided by + StringCchCopy, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + length must be = (_tcslen(pszSrc) + 1) to hold all of + the source including the null terminator + + pszSrc - source string which must be null terminated + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function copied any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return the + number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + this flag is useful for emulating functions like lstrcpy + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchCopyExA(char* pszDest, size_t cchDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCchCopyExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCchCopyEx StringCchCopyExW +#else +#define StringCchCopyEx StringCchCopyExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCopyExA(char* pszDest, size_t cchDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringCopyExWorkerA(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} + +STRSAFEAPI StringCchCopyExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringCopyExWorkerW(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCopyEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + IN LPCTSTR pszSrc OPTIONAL, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcbRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcpy' with + some additional parameters. In addition to functionality provided by + StringCbCopy, this routine also returns a pointer to the end of the + destination string and the number of bytes left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + length must be ((_tcslen(pszSrc) + 1) * sizeof(TCHAR)) to + hold all of the source including the null terminator + + pszSrc - source string which must be null terminated + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function copied any data, the result will point to the + null termination character + + pcbRemaining - pcbRemaining is non-null,the function will return the + number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + this flag is useful for emulating functions like lstrcpy + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbCopyExA(char* pszDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +STRSAFEAPI StringCbCopyExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCbCopyEx StringCbCopyExW +#else +#define StringCbCopyEx StringCbCopyExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCopyExA(char* pszDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyExWorkerA(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFEAPI StringCbCopyExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyExWorkerW(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCopyN( + OUT LPTSTR pszDest, + IN size_t cchDest, + IN LPCTSTR pszSrc, + IN size_t cchSrc + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncpy'. + The size of the destination buffer (in characters) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This routine is meant as a replacement for strncpy, but it does behave + differently. This function will not pad the destination buffer with extra + null termination characters if cchSrc is greater than the length of pszSrc. + + This function returns a hresult, and not a pointer. It returns + S_OK if the entire string or the first cchSrc characters were copied + without truncation and the resultant destination string was null terminated, + otherwise it will return a failure code. In failure cases as much of pszSrc + will be copied to pszDest as possible, and pszDest will be null terminated. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + length must be = (_tcslen(src) + 1) to hold all of the + source including the null terminator + + pszSrc - source string + + cchSrc - maximum number of characters to copy from source string, + not including the null terminator. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCchCopyNEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +STRSAFEAPI StringCchCopyNA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchSrc); +STRSAFEAPI StringCchCopyNW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchSrc); +#ifdef UNICODE +#define StringCchCopyN StringCchCopyNW +#else +#define StringCchCopyN StringCchCopyNA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCopyNA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchSrc) +{ + HRESULT hr; + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyNWorkerA(pszDest, cchDest, pszSrc, cchSrc); + } + + return hr; +} + +STRSAFEAPI StringCchCopyNW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchSrc) +{ + HRESULT hr; + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyNWorkerW(pszDest, cchDest, pszSrc, cchSrc); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCopyN( + OUT LPTSTR pszDest, + IN size_t cbDest, + IN LPCTSTR pszSrc, + IN size_t cbSrc + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncpy'. + The size of the destination buffer (in bytes) is a parameter and this + function will not write past the end of this buffer and it will ALWAYS + null terminate the destination buffer (unless it is zero length). + + This routine is meant as a replacement for strncpy, but it does behave + differently. This function will not pad the destination buffer with extra + null termination characters if cbSrc is greater than the size of pszSrc. + + This function returns a hresult, and not a pointer. It returns + S_OK if the entire string or the first cbSrc characters were + copied without truncation and the resultant destination string was null + terminated, otherwise it will return a failure code. In failure cases as + much of pszSrc will be copied to pszDest as possible, and pszDest will be + null terminated. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + length must be = ((_tcslen(src) + 1) * sizeof(TCHAR)) to + hold all of the source including the null terminator + + pszSrc - source string + + cbSrc - maximum number of bytes to copy from source string, + not including the null terminator. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCbCopyEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +STRSAFEAPI StringCbCopyNA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbSrc); +STRSAFEAPI StringCbCopyNW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbSrc); +#ifdef UNICODE +#define StringCbCopyN StringCbCopyNW +#else +#define StringCbCopyN StringCbCopyNA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCopyNA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbSrc) +{ + HRESULT hr; + size_t cchDest; + size_t cchSrc; + + // convert to count of characters + cchDest = cbDest / sizeof(char); + cchSrc = cbSrc / sizeof(char); + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyNWorkerA(pszDest, cchDest, pszSrc, cchSrc); + } + + return hr; +} + +STRSAFEAPI StringCbCopyNW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbSrc) +{ + HRESULT hr; + size_t cchDest; + size_t cchSrc; + + // convert to count of characters + cchDest = cbDest / sizeof(wchar_t); + cchSrc = cbSrc / sizeof(wchar_t); + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyNWorkerW(pszDest, cchDest, pszSrc, cchSrc); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCopyNEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + IN LPCTSTR pszSrc OPTIONAL, + IN size_t cchSrc, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncpy' with + some additional parameters. In addition to functionality provided by + StringCchCopyN, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination + string including the null terminator. The flags parameter allows + additional controls. + + This routine is meant as a replacement for strncpy, but it does behave + differently. This function will not pad the destination buffer with extra + null termination characters if cchSrc is greater than the length of pszSrc. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + length must be = (_tcslen(pszSrc) + 1) to hold all of + the source including the null terminator + + pszSrc - source string + + cchSrc - maximum number of characters to copy from the source + string + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function copied any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return the + number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + this flag is useful for emulating functions like lstrcpy + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchCopyNExA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCchCopyNExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCchCopyNEx StringCchCopyNExW +#else +#define StringCchCopyNEx StringCchCopyNExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCopyNExA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringCopyNExWorkerA(pszDest, cchDest, cbDest, pszSrc, cchSrc, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} + +STRSAFEAPI StringCchCopyNExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringCopyNExWorkerW(pszDest, cchDest, cbDest, pszSrc, cchSrc, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCopyNEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + IN LPCTSTR pszSrc OPTIONAL, + IN size_t cbSrc, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcbRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncpy' with + some additional parameters. In addition to functionality provided by + StringCbCopyN, this routine also returns a pointer to the end of the + destination string and the number of bytes left in the destination string + including the null terminator. The flags parameter allows additional controls. + + This routine is meant as a replacement for strncpy, but it does behave + differently. This function will not pad the destination buffer with extra + null termination characters if cbSrc is greater than the size of pszSrc. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + length must be ((_tcslen(pszSrc) + 1) * sizeof(TCHAR)) to + hold all of the source including the null terminator + + pszSrc - source string + + cbSrc - maximum number of bytes to copy from source string + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function copied any data, the result will point to the + null termination character + + pcbRemaining - pcbRemaining is non-null,the function will return the + number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + this flag is useful for emulating functions like lstrcpy + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all copied and the + resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the copy + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbCopyNExA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbSrc, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +STRSAFEAPI StringCbCopyNExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbSrc, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCbCopyNEx StringCbCopyNExW +#else +#define StringCbCopyNEx StringCbCopyNExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCopyNExA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbSrc, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchSrc; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + cchSrc = cbSrc / sizeof(char); + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyNExWorkerA(pszDest, cchDest, cbDest, pszSrc, cchSrc, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFEAPI StringCbCopyNExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbSrc, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchSrc; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + cchSrc = cbSrc / sizeof(wchar_t); + + if ((cchDest > STRSAFE_MAX_CCH) || + (cchSrc > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCopyNExWorkerW(pszDest, cchDest, cbDest, pszSrc, cchSrc, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCat( + IN OUT LPTSTR pszDest, + IN size_t cchDest, + IN LPCTSTR pszSrc + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcat'. + The size of the destination buffer (in characters) is a parameter and this + function will not write past the end of this buffer and it will ALWAYS + null terminate the destination buffer (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was concatenated without truncation and null terminated, + otherwise it will return a failure code. In failure cases as much of pszSrc + will be appended to pszDest as possible, and pszDest will be null + terminated. + +Arguments: + + pszDest - destination string which must be null terminated + + cchDest - size of destination buffer in characters. + length must be = (_tcslen(pszDest) + _tcslen(pszSrc) + 1) + to hold all of the combine string plus the null + terminator + + pszSrc - source string which must be null terminated + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCchCatEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error occurs, + the destination buffer is modified to contain a truncated + version of the ideal result and is null terminated. This + is useful for situations where truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchCatA(char* pszDest, size_t cchDest, const char* pszSrc); +STRSAFEAPI StringCchCatW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc); +#ifdef UNICODE +#define StringCchCat StringCchCatW +#else +#define StringCchCat StringCchCatA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCatA(char* pszDest, size_t cchDest, const char* pszSrc) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatWorkerA(pszDest, cchDest, pszSrc); + } + + return hr; +} + +STRSAFEAPI StringCchCatW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatWorkerW(pszDest, cchDest, pszSrc); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCat( + IN OUT LPTSTR pszDest, + IN size_t cbDest, + IN LPCTSTR pszSrc + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcat'. + The size of the destination buffer (in bytes) is a parameter and this + function will not write past the end of this buffer and it will ALWAYS + null terminate the destination buffer (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was concatenated without truncation and null terminated, + otherwise it will return a failure code. In failure cases as much of pszSrc + will be appended to pszDest as possible, and pszDest will be null + terminated. + +Arguments: + + pszDest - destination string which must be null terminated + + cbDest - size of destination buffer in bytes. + length must be = ((_tcslen(pszDest) + _tcslen(pszSrc) + 1) * sizeof(TCHAR) + to hold all of the combine string plus the null + terminator + + pszSrc - source string which must be null terminated + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCbCatEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error occurs, + the destination buffer is modified to contain a truncated + version of the ideal result and is null terminated. This + is useful for situations where truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbCatA(char* pszDest, size_t cbDest, const char* pszSrc); +STRSAFEAPI StringCbCatW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc); +#ifdef UNICODE +#define StringCbCat StringCbCatW +#else +#define StringCbCat StringCbCatA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCatA(char* pszDest, size_t cbDest, const char* pszSrc) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatWorkerA(pszDest, cchDest, pszSrc); + } + + return hr; +} + +STRSAFEAPI StringCbCatW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatWorkerW(pszDest, cchDest, pszSrc); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCatEx( + IN OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + IN LPCTSTR pszSrc OPTIONAL, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcat' with + some additional parameters. In addition to functionality provided by + StringCchCat, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string which must be null terminated + + cchDest - size of destination buffer in characters + length must be (_tcslen(pszDest) + _tcslen(pszSrc) + 1) + to hold all of the combine string plus the null + terminator. + + pszSrc - source string which must be null terminated + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function appended any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return the + number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + this flag is useful for emulating functions like lstrcat + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any pre-existing + or truncated string + + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any pre-existing or + truncated string + + STRSAFE_NO_TRUNCATION + if the function returns STRSAFE_E_INSUFFICIENT_BUFFER, pszDest + will not contain a truncated string, it will remain unchanged. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error + occurs, the destination buffer is modified to contain + a truncated version of the ideal result and is null + terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchCatExA(char* pszDest, size_t cchDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCchCatExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCchCatEx StringCchCatExW +#else +#define StringCchCatEx StringCchCatExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCatExA(char* pszDest, size_t cchDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringCatExWorkerA(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} + +STRSAFEAPI StringCchCatExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringCatExWorkerW(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCatEx( + IN OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + IN LPCTSTR pszSrc OPTIONAL, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcbRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strcat' with + some additional parameters. In addition to functionality provided by + StringCbCat, this routine also returns a pointer to the end of the + destination string and the number of bytes left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string which must be null terminated + + cbDest - size of destination buffer in bytes. + length must be ((_tcslen(pszDest) + _tcslen(pszSrc) + 1) * sizeof(TCHAR) + to hold all of the combine string plus the null + terminator. + + pszSrc - source string which must be null terminated + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function appended any data, the result will point to the + null termination character + + pcbRemaining - if pcbRemaining is non-null, the function will return + the number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + this flag is useful for emulating functions like lstrcat + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any pre-existing + or truncated string + + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any pre-existing or + truncated string + + STRSAFE_NO_TRUNCATION + if the function returns STRSAFE_E_INSUFFICIENT_BUFFER, pszDest + will not contain a truncated string, it will remain unchanged. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all concatenated + and the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error + occurs, the destination buffer is modified to contain + a truncated version of the ideal result and is null + terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbCatExA(char* pszDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +STRSAFEAPI StringCbCatExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCbCatEx StringCbCatExW +#else +#define StringCbCatEx StringCbCatExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCatExA(char* pszDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatExWorkerA(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFEAPI StringCbCatExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatExWorkerW(pszDest, cchDest, cbDest, pszSrc, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCatN( + IN OUT LPTSTR pszDest, + IN size_t cchDest, + IN LPCTSTR pszSrc, + IN size_t cchMaxAppend + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncat'. + The size of the destination buffer (in characters) is a parameter as well as + the maximum number of characters to append, excluding the null terminator. + This function will not write past the end of the destination buffer and it will + ALWAYS null terminate pszDest (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if all of pszSrc or the first cchMaxAppend characters were appended + to the destination string and it was null terminated, otherwise it will + return a failure code. In failure cases as much of pszSrc will be appended + to pszDest as possible, and pszDest will be null terminated. + +Arguments: + + pszDest - destination string which must be null terminated + + cchDest - size of destination buffer in characters. + length must be (_tcslen(pszDest) + min(cchMaxAppend, _tcslen(pszSrc)) + 1) + to hold all of the combine string plus the null + terminator. + + pszSrc - source string + + cchMaxAppend - maximum number of characters to append + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCchCatNEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if all of pszSrc or the first cchMaxAppend characters + were concatenated to pszDest and the resultant dest + string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error + occurs, the destination buffer is modified to contain + a truncated version of the ideal result and is null + terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchCatNA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchMaxAppend); +STRSAFEAPI StringCchCatNW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchMaxAppend); +#ifdef UNICODE +#define StringCchCatN StringCchCatNW +#else +#define StringCchCatN StringCchCatNA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCatNA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchMaxAppend) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatNWorkerA(pszDest, cchDest, pszSrc, cchMaxAppend); + } + + return hr; +} + +STRSAFEAPI StringCchCatNW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchMaxAppend) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringCatNWorkerW(pszDest, cchDest, pszSrc, cchMaxAppend); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCatN( + IN OUT LPTSTR pszDest, + IN size_t cbDest, + IN LPCTSTR pszSrc, + IN size_t cbMaxAppend + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncat'. + The size of the destination buffer (in bytes) is a parameter as well as + the maximum number of bytes to append, excluding the null terminator. + This function will not write past the end of the destination buffer and it will + ALWAYS null terminate pszDest (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if all of pszSrc or the first cbMaxAppend bytes were appended + to the destination string and it was null terminated, otherwise it will + return a failure code. In failure cases as much of pszSrc will be appended + to pszDest as possible, and pszDest will be null terminated. + +Arguments: + + pszDest - destination string which must be null terminated + + cbDest - size of destination buffer in bytes. + length must be ((_tcslen(pszDest) + min(cbMaxAppend / sizeof(TCHAR), _tcslen(pszSrc)) + 1) * sizeof(TCHAR) + to hold all of the combine string plus the null + terminator. + + pszSrc - source string + + cbMaxAppend - maximum number of bytes to append + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL. See StringCbCatNEx if you require + the handling of NULL values. + +Return Value: + + S_OK - if all of pszSrc or the first cbMaxAppend bytes were + concatenated to pszDest and the resultant dest string + was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error + occurs, the destination buffer is modified to contain + a truncated version of the ideal result and is null + terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbCatNA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbMaxAppend); +STRSAFEAPI StringCbCatNW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbMaxAppend); +#ifdef UNICODE +#define StringCbCatN StringCbCatNW +#else +#define StringCbCatN StringCbCatNA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCatNA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbMaxAppend) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cchMaxAppend; + + cchMaxAppend = cbMaxAppend / sizeof(char); + + hr = StringCatNWorkerA(pszDest, cchDest, pszSrc, cchMaxAppend); + } + + return hr; +} + +STRSAFEAPI StringCbCatNW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbMaxAppend) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cchMaxAppend; + + cchMaxAppend = cbMaxAppend / sizeof(wchar_t); + + hr = StringCatNWorkerW(pszDest, cchDest, pszSrc, cchMaxAppend); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchCatNEx( + IN OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + IN LPCTSTR pszSrc OPTIONAL, + IN size_t cchMaxAppend, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncat', with + some additional parameters. In addition to functionality provided by + StringCchCatN, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string which must be null terminated + + cchDest - size of destination buffer in characters. + length must be (_tcslen(pszDest) + min(cchMaxAppend, _tcslen(pszSrc)) + 1) + to hold all of the combine string plus the null + terminator. + + pszSrc - source string + + cchMaxAppend - maximum number of characters to append + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function appended any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return the + number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")) + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any pre-existing + or truncated string + + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any pre-existing or + truncated string + + STRSAFE_NO_TRUNCATION + if the function returns STRSAFE_E_INSUFFICIENT_BUFFER, pszDest + will not contain a truncated string, it will remain unchanged. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if all of pszSrc or the first cchMaxAppend characters + were concatenated to pszDest and the resultant dest + string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error + occurs, the destination buffer is modified to contain + a truncated version of the ideal result and is null + terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchCatNExA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchMaxAppend, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFEAPI StringCchCatNExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchMaxAppend, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCchCatNEx StringCchCatNExW +#else +#define StringCchCatNEx StringCchCatNExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchCatNExA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchMaxAppend, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringCatNExWorkerA(pszDest, cchDest, cbDest, pszSrc, cchMaxAppend, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} + +STRSAFEAPI StringCchCatNExW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchMaxAppend, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringCatNExWorkerW(pszDest, cchDest, cbDest, pszSrc, cchMaxAppend, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbCatNEx( + IN OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + IN LPCTSTR pszSrc OPTIONAL, + IN size_t cbMaxAppend, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strncat', with + some additional parameters. In addition to functionality provided by + StringCbCatN, this routine also returns a pointer to the end of the + destination string and the number of bytes left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string which must be null terminated + + cbDest - size of destination buffer in bytes. + length must be ((_tcslen(pszDest) + min(cbMaxAppend / sizeof(TCHAR), _tcslen(pszSrc)) + 1) * sizeof(TCHAR) + to hold all of the combine string plus the null + terminator. + + pszSrc - source string + + cbMaxAppend - maximum number of bytes to append + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function appended any data, the result will point to the + null termination character + + pcbRemaining - if pcbRemaining is non-null, the function will return the + number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")) + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any pre-existing + or truncated string + + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any pre-existing or + truncated string + + STRSAFE_NO_TRUNCATION + if the function returns STRSAFE_E_INSUFFICIENT_BUFFER, pszDest + will not contain a truncated string, it will remain unchanged. + +Notes: + Behavior is undefined if source and destination strings overlap. + + pszDest and pszSrc should not be NULL unless the STRSAFE_IGNORE_NULLS flag + is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and pszSrc + may be NULL. An error may still be returned even though NULLS are ignored + due to insufficient space. + +Return Value: + + S_OK - if all of pszSrc or the first cbMaxAppend bytes were + concatenated to pszDest and the resultant dest string + was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the operation + failed due to insufficient space. When this error + occurs, the destination buffer is modified to contain + a truncated version of the ideal result and is null + terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbCatNExA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbMaxAppend, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +STRSAFEAPI StringCbCatNExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbMaxAppend, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCbCatNEx StringCbCatNExW +#else +#define StringCbCatNEx StringCbCatNExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbCatNExA(char* pszDest, size_t cbDest, const char* pszSrc, size_t cbMaxAppend, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cchMaxAppend; + + cchMaxAppend = cbMaxAppend / sizeof(char); + + hr = StringCatNExWorkerA(pszDest, cchDest, cbDest, pszSrc, cchMaxAppend, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFEAPI StringCbCatNExW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszSrc, size_t cbMaxAppend, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cchMaxAppend; + + cchMaxAppend = cbMaxAppend / sizeof(wchar_t); + + hr = StringCatNExWorkerW(pszDest, cchDest, cbDest, pszSrc, cchMaxAppend, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchVPrintf( + OUT LPTSTR pszDest, + IN size_t cchDest, + IN LPCTSTR pszFormat, + IN va_list argList + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'vsprintf'. + The size of the destination buffer (in characters) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was printed without truncation and null terminated, + otherwise it will return a failure code. In failure cases it will return + a truncated version of the ideal result. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters + length must be sufficient to hold the resulting formatted + string, including the null terminator. + + pszFormat - format string which must be null terminated + + argList - va_list from the variable arguments according to the + stdarg.h convention + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL. See StringCchVPrintfEx if you + require the handling of NULL values. + +Return Value: + + S_OK - if there was sufficient space in the dest buffer for + the resultant string and it was null terminated. + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchVPrintfA(char* pszDest, size_t cchDest, const char* pszFormat, va_list argList); +STRSAFEAPI StringCchVPrintfW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszFormat, va_list argList); +#ifdef UNICODE +#define StringCchVPrintf StringCchVPrintfW +#else +#define StringCchVPrintf StringCchVPrintfA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchVPrintfA(char* pszDest, size_t cchDest, const char* pszFormat, va_list argList) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringVPrintfWorkerA(pszDest, cchDest, pszFormat, argList); + } + + return hr; +} + +STRSAFEAPI StringCchVPrintfW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszFormat, va_list argList) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringVPrintfWorkerW(pszDest, cchDest, pszFormat, argList); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbVPrintf( + OUT LPTSTR pszDest, + IN size_t cbDest, + IN LPCTSTR pszFormat, + IN va_list argList + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'vsprintf'. + The size of the destination buffer (in bytes) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was printed without truncation and null terminated, + otherwise it will return a failure code. In failure cases it will return + a truncated version of the ideal result. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes + length must be sufficient to hold the resulting formatted + string, including the null terminator. + + pszFormat - format string which must be null terminated + + argList - va_list from the variable arguments according to the + stdarg.h convention + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL. See StringCbVPrintfEx if you + require the handling of NULL values. + + +Return Value: + + S_OK - if there was sufficient space in the dest buffer for + the resultant string and it was null terminated. + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbVPrintfA(char* pszDest, size_t cbDest, const char* pszFormat, va_list argList); +STRSAFEAPI StringCbVPrintfW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszFormat, va_list argList); +#ifdef UNICODE +#define StringCbVPrintf StringCbVPrintfW +#else +#define StringCbVPrintf StringCbVPrintfA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbVPrintfA(char* pszDest, size_t cbDest, const char* pszFormat, va_list argList) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringVPrintfWorkerA(pszDest, cchDest, pszFormat, argList); + } + + return hr; +} + +STRSAFEAPI StringCbVPrintfW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszFormat, va_list argList) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringVPrintfWorkerW(pszDest, cchDest, pszFormat, argList); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchPrintf( + OUT LPTSTR pszDest, + IN size_t cchDest, + IN LPCTSTR pszFormat, + ... + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'sprintf'. + The size of the destination buffer (in characters) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was printed without truncation and null terminated, + otherwise it will return a failure code. In failure cases it will return + a truncated version of the ideal result. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters + length must be sufficient to hold the resulting formatted + string, including the null terminator. + + pszFormat - format string which must be null terminated + + ... - additional parameters to be formatted according to + the format string + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL. See StringCchPrintfEx if you + require the handling of NULL values. + +Return Value: + + S_OK - if there was sufficient space in the dest buffer for + the resultant string and it was null terminated. + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchPrintfA(char* pszDest, size_t cchDest, const char* pszFormat, ...); +STRSAFEAPI StringCchPrintfW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszFormat, ...); +#ifdef UNICODE +#define StringCchPrintf StringCchPrintfW +#else +#define StringCchPrintf StringCchPrintfA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchPrintfA(char* pszDest, size_t cchDest, const char* pszFormat, ...) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + va_list argList; + + va_start(argList, pszFormat); + + hr = StringVPrintfWorkerA(pszDest, cchDest, pszFormat, argList); + + va_end(argList); + } + + return hr; +} + +STRSAFEAPI StringCchPrintfW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszFormat, ...) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + va_list argList; + + va_start(argList, pszFormat); + + hr = StringVPrintfWorkerW(pszDest, cchDest, pszFormat, argList); + + va_end(argList); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbPrintf( + OUT LPTSTR pszDest, + IN size_t cbDest, + IN LPCTSTR pszFormat, + ... + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'sprintf'. + The size of the destination buffer (in bytes) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This function returns a hresult, and not a pointer. It returns + S_OK if the string was printed without truncation and null terminated, + otherwise it will return a failure code. In failure cases it will return + a truncated version of the ideal result. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes + length must be sufficient to hold the resulting formatted + string, including the null terminator. + + pszFormat - format string which must be null terminated + + ... - additional parameters to be formatted according to + the format string + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL. See StringCbPrintfEx if you + require the handling of NULL values. + + +Return Value: + + S_OK - if there was sufficient space in the dest buffer for + the resultant string and it was null terminated. + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbPrintfA(char* pszDest, size_t cbDest, const char* pszFormat, ...); +STRSAFEAPI StringCbPrintfW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszFormat, ...); +#ifdef UNICODE +#define StringCbPrintf StringCbPrintfW +#else +#define StringCbPrintf StringCbPrintfA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbPrintfA(char* pszDest, size_t cbDest, const char* pszFormat, ...) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + va_list argList; + + va_start(argList, pszFormat); + + hr = StringVPrintfWorkerA(pszDest, cchDest, pszFormat, argList); + + va_end(argList); + } + + return hr; +} + +STRSAFEAPI StringCbPrintfW(wchar_t* pszDest, size_t cbDest, const wchar_t* pszFormat, ...) +{ + HRESULT hr; + size_t cchDest; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + va_list argList; + + va_start(argList, pszFormat); + + hr = StringVPrintfWorkerW(pszDest, cchDest, pszFormat, argList); + + va_end(argList); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchPrintfEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags, + IN LPCTSTR pszFormat OPTIONAL, + ... + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'sprintf' with + some additional parameters. In addition to functionality provided by + StringCchPrintf, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + length must be sufficient to contain the resulting + formatted string plus the null terminator. + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function printed any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return + the number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")) + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + + pszFormat - format string which must be null terminated + + ... - additional parameters to be formatted according to + the format string + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL unless the STRSAFE_IGNORE_NULLS + flag is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and + pszFormat may be NULL. An error may still be returned even though NULLS + are ignored due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchPrintfExA(char* pszDest, size_t cchDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const char* pszFormat, ...); +STRSAFEAPI StringCchPrintfExW(wchar_t* pszDest, size_t cchDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const wchar_t* pszFormat, ...); +#ifdef UNICODE +#define StringCchPrintfEx StringCchPrintfExW +#else +#define StringCchPrintfEx StringCchPrintfExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchPrintfExA(char* pszDest, size_t cchDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const char* pszFormat, ...) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + va_list argList; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + va_start(argList, pszFormat); + + hr = StringVPrintfExWorkerA(pszDest, cchDest, cbDest, ppszDestEnd, pcchRemaining, dwFlags, pszFormat, argList); + + va_end(argList); + } + + return hr; +} + +STRSAFEAPI StringCchPrintfExW(wchar_t* pszDest, size_t cchDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const wchar_t* pszFormat, ...) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + va_list argList; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + va_start(argList, pszFormat); + + hr = StringVPrintfExWorkerW(pszDest, cchDest, cbDest, ppszDestEnd, pcchRemaining, dwFlags, pszFormat, argList); + + va_end(argList); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbPrintfEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcbRemaining OPTIONAL, + IN DWORD dwFlags, + IN LPCTSTR pszFormat OPTIONAL, + ... + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'sprintf' with + some additional parameters. In addition to functionality provided by + StringCbPrintf, this routine also returns a pointer to the end of the + destination string and the number of bytes left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + length must be sufficient to contain the resulting + formatted string plus the null terminator. + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function printed any data, the result will point to the + null termination character + + pcbRemaining - if pcbRemaining is non-null, the function will return + the number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")) + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + + pszFormat - format string which must be null terminated + + ... - additional parameters to be formatted according to + the format string + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL unless the STRSAFE_IGNORE_NULLS + flag is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and + pszFormat may be NULL. An error may still be returned even though NULLS + are ignored due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbPrintfExA(char* pszDest, size_t cbDest, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const char* pszFormat, ...); +STRSAFEAPI StringCbPrintfExW(wchar_t* pszDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const wchar_t* pszFormat, ...); +#ifdef UNICODE +#define StringCbPrintfEx StringCbPrintfExW +#else +#define StringCbPrintfEx StringCbPrintfExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbPrintfExA(char* pszDest, size_t cbDest, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const char* pszFormat, ...) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + va_list argList; + + va_start(argList, pszFormat); + + hr = StringVPrintfExWorkerA(pszDest, cchDest, cbDest, ppszDestEnd, &cchRemaining, dwFlags, pszFormat, argList); + + va_end(argList); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFEAPI StringCbPrintfExW(wchar_t* pszDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const wchar_t* pszFormat, ...) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + va_list argList; + + va_start(argList, pszFormat); + + hr = StringVPrintfExWorkerW(pszDest, cchDest, cbDest, ppszDestEnd, &cchRemaining, dwFlags, pszFormat, argList); + + va_end(argList); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchVPrintfEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags, + IN LPCTSTR pszFormat OPTIONAL, + IN va_list argList + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'vsprintf' with + some additional parameters. In addition to functionality provided by + StringCchVPrintf, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + length must be sufficient to contain the resulting + formatted string plus the null terminator. + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function printed any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return + the number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")) + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + + pszFormat - format string which must be null terminated + + argList - va_list from the variable arguments according to the + stdarg.h convention + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL unless the STRSAFE_IGNORE_NULLS + flag is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and + pszFormat may be NULL. An error may still be returned even though NULLS + are ignored due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCchVPrintfExA(char* pszDest, size_t cchDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const char* pszFormat, va_list argList); +STRSAFEAPI StringCchVPrintfExW(wchar_t* pszDest, size_t cchDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const wchar_t* pszFormat, va_list argList); +#ifdef UNICODE +#define StringCchVPrintfEx StringCchVPrintfExW +#else +#define StringCchVPrintfEx StringCchVPrintfExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchVPrintfExA(char* pszDest, size_t cchDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const char* pszFormat, va_list argList) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringVPrintfExWorkerA(pszDest, cchDest, cbDest, ppszDestEnd, pcchRemaining, dwFlags, pszFormat, argList); + } + + return hr; +} + +STRSAFEAPI StringCchVPrintfExW(wchar_t* pszDest, size_t cchDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const wchar_t* pszFormat, va_list argList) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringVPrintfExWorkerW(pszDest, cchDest, cbDest, ppszDestEnd, pcchRemaining, dwFlags, pszFormat, argList); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbVPrintfEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcbRemaining OPTIONAL, + IN DWORD dwFlags, + IN LPCTSTR pszFormat OPTIONAL, + IN va_list argList + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'vsprintf' with + some additional parameters. In addition to functionality provided by + StringCbVPrintf, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + length must be sufficient to contain the resulting + formatted string plus the null terminator. + + ppszDestEnd - if ppszDestEnd is non-null, the function will return + a pointer to the end of the destination string. If the + function printed any data, the result will point to the + null termination character + + pcbRemaining - if pcbRemaining is non-null, the function will return + the number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")) + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. This will overwrite any truncated + string returned when the failure is + STRSAFE_E_INSUFFICIENT_BUFFER + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. This will overwrite any truncated string + returned when the failure is STRSAFE_E_INSUFFICIENT_BUFFER. + + pszFormat - format string which must be null terminated + + argList - va_list from the variable arguments according to the + stdarg.h convention + +Notes: + Behavior is undefined if destination, format strings or any arguments + strings overlap. + + pszDest and pszFormat should not be NULL unless the STRSAFE_IGNORE_NULLS + flag is specified. If STRSAFE_IGNORE_NULLS is passed, both pszDest and + pszFormat may be NULL. An error may still be returned even though NULLS + are ignored due to insufficient space. + +Return Value: + + S_OK - if there was source data and it was all concatenated and + the resultant dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that the print + operation failed due to insufficient space. When this + error occurs, the destination buffer is modified to + contain a truncated version of the ideal result and is + null terminated. This is useful for situations where + truncation is ok. + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function + +--*/ + +STRSAFEAPI StringCbVPrintfExA(char* pszDest, size_t cbDest, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const char* pszFormat, va_list argList); +STRSAFEAPI StringCbVPrintfExW(wchar_t* pszDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const wchar_t* pszFormat, va_list argList); +#ifdef UNICODE +#define StringCbVPrintfEx StringCbVPrintfExW +#else +#define StringCbVPrintfEx StringCbVPrintfExA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbVPrintfExA(char* pszDest, size_t cbDest, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const char* pszFormat, va_list argList) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringVPrintfExWorkerA(pszDest, cchDest, cbDest, ppszDestEnd, &cchRemaining, dwFlags, pszFormat, argList); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFEAPI StringCbVPrintfExW(wchar_t* pszDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags, const wchar_t* pszFormat, va_list argList) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringVPrintfExWorkerW(pszDest, cchDest, cbDest, ppszDestEnd, &cchRemaining, dwFlags, pszFormat, argList); + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchGets( + OUT LPTSTR pszDest, + IN size_t cchDest + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'gets'. + The size of the destination buffer (in characters) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This routine is not a replacement for fgets. That function does not replace + newline characters with a null terminator. + + This function returns a hresult, and not a pointer. It returns + S_OK if any characters were read from stdin and copied to pszDest and + pszDest was null terminated, otherwise it will return a failure code. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + +Notes: + pszDest should not be NULL. See StringCchGetsEx if you require the handling + of NULL values. + + cchDest must be > 1 for this function to succeed. + +Return Value: + + S_OK - data was read from stdin and copied, and the resultant + dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_END_OF_FILE / + HRESULT_CODE(hr) == ERROR_HANDLE_EOF + - this return value indicates an error or end-of-file + condition, use feof or ferror to determine which one has + occured. + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that there was + insufficient space in the destination buffer to copy any + data + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +#ifndef STRSAFE_LIB_IMPL +STRSAFE_INLINE_API StringCchGetsA(char* pszDest, size_t cchDest); +STRSAFE_INLINE_API StringCchGetsW(wchar_t* pszDest, size_t cchDest); +#ifdef UNICODE +#define StringCchGets StringCchGetsW +#else +#define StringCchGets StringCchGetsA +#endif // !UNICODE + +STRSAFE_INLINE_API StringCchGetsA(char* pszDest, size_t cchDest) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringGetsExWorkerA(pszDest, cchDest, cbDest, NULL, NULL, 0); + } + + return hr; +} + +STRSAFE_INLINE_API StringCchGetsW(wchar_t* pszDest, size_t cchDest) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringGetsExWorkerW(pszDest, cchDest, cbDest, NULL, NULL, 0); + } + + return hr; +} +#endif // !STRSAFE_NO_CCH_FUNCTIONS +#endif // !STRSAFE_LIB_IMPL + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbGets( + OUT LPTSTR pszDest, + IN size_t cbDest + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'gets'. + The size of the destination buffer (in bytes) is a parameter and + this function will not write past the end of this buffer and it will + ALWAYS null terminate the destination buffer (unless it is zero length). + + This routine is not a replacement for fgets. That function does not replace + newline characters with a null terminator. + + This function returns a hresult, and not a pointer. It returns + S_OK if any characters were read from stdin and copied to pszDest + and pszDest was null terminated, otherwise it will return a failure code. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + +Notes: + pszDest should not be NULL. See StringCbGetsEx if you require the handling + of NULL values. + + cbDest must be > sizeof(TCHAR) for this function to succeed. + +Return Value: + + S_OK - data was read from stdin and copied, and the resultant + dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_END_OF_FILE / + HRESULT_CODE(hr) == ERROR_HANDLE_EOF + - this return value indicates an error or end-of-file + condition, use feof or ferror to determine which one has + occured. + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that there was + insufficient space in the destination buffer to copy any + data + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +#ifndef STRSAFE_LIB_IMPL +STRSAFE_INLINE_API StringCbGetsA(char* pszDest, size_t cbDest); +STRSAFE_INLINE_API StringCbGetsW(wchar_t* pszDest, size_t cbDest); +#ifdef UNICODE +#define StringCbGets StringCbGetsW +#else +#define StringCbGets StringCbGetsA +#endif // !UNICODE + +STRSAFE_INLINE_API StringCbGetsA(char* pszDest, size_t cbDest) +{ + HRESULT hr; + size_t cchDest; + + // convert to count of characters + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringGetsExWorkerA(pszDest, cchDest, cbDest, NULL, NULL, 0); + } + + return hr; +} + +STRSAFE_INLINE_API StringCbGetsW(wchar_t* pszDest, size_t cbDest) +{ + HRESULT hr; + size_t cchDest; + + // convert to count of characters + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringGetsExWorkerW(pszDest, cchDest, cbDest, NULL, NULL, 0); + } + + return hr; +} +#endif // !STRSAFE_NO_CB_FUNCTIONS +#endif // !STRSAFE_LIB_IMPL + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchGetsEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cchDest, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcchRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'gets' with + some additional parameters. In addition to functionality provided by + StringCchGets, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cchDest - size of destination buffer in characters. + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function copied any data, the result will point to the + null termination character + + pcchRemaining - if pcchRemaining is non-null, the function will return the + number of characters left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. + +Notes: + pszDest should not be NULL unless the STRSAFE_IGNORE_NULLS flag is specified. + If STRSAFE_IGNORE_NULLS is passed and pszDest is NULL, an error may still be + returned even though NULLS are ignored + + cchDest must be > 1 for this function to succeed. + +Return Value: + + S_OK - data was read from stdin and copied, and the resultant + dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_END_OF_FILE / + HRESULT_CODE(hr) == ERROR_HANDLE_EOF + - this return value indicates an error or end-of-file + condition, use feof or ferror to determine which one has + occured. + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that there was + insufficient space in the destination buffer to copy any + data + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +#ifndef STRSAFE_LIB_IMPL +STRSAFE_INLINE_API StringCchGetsExA(char* pszDest, size_t cchDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +STRSAFE_INLINE_API StringCchGetsExW(wchar_t* pszDest, size_t cchDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCchGetsEx StringCchGetsExW +#else +#define StringCchGetsEx StringCchGetsExA +#endif // !UNICODE + +STRSAFE_INLINE_API StringCchGetsExA(char* pszDest, size_t cchDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(char) since cchDest < STRSAFE_MAX_CCH and sizeof(char) is 1 + cbDest = cchDest * sizeof(char); + + hr = StringGetsExWorkerA(pszDest, cchDest, cbDest, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} + +STRSAFE_INLINE_API StringCchGetsExW(wchar_t* pszDest, size_t cchDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr; + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cbDest; + + // safe to multiply cchDest * sizeof(wchar_t) since cchDest < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + cbDest = cchDest * sizeof(wchar_t); + + hr = StringGetsExWorkerW(pszDest, cchDest, cbDest, ppszDestEnd, pcchRemaining, dwFlags); + } + + return hr; +} +#endif // !STRSAFE_NO_CCH_FUNCTIONS +#endif // !STRSAFE_LIB_IMPL + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbGetsEx( + OUT LPTSTR pszDest OPTIONAL, + IN size_t cbDest, + OUT LPTSTR* ppszDestEnd OPTIONAL, + OUT size_t* pcbRemaining OPTIONAL, + IN DWORD dwFlags + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'gets' with + some additional parameters. In addition to functionality provided by + StringCbGets, this routine also returns a pointer to the end of the + destination string and the number of characters left in the destination string + including the null terminator. The flags parameter allows additional controls. + +Arguments: + + pszDest - destination string + + cbDest - size of destination buffer in bytes. + + ppszDestEnd - if ppszDestEnd is non-null, the function will return a + pointer to the end of the destination string. If the + function copied any data, the result will point to the + null termination character + + pcbRemaining - if pbRemaining is non-null, the function will return the + number of bytes left in the destination string, + including the null terminator + + dwFlags - controls some details of the string copy: + + STRSAFE_FILL_BEHIND_NULL + if the function succeeds, the low byte of dwFlags will be + used to fill the uninitialize part of destination buffer + behind the null terminator + + STRSAFE_IGNORE_NULLS + treat NULL string pointers like empty strings (TEXT("")). + + STRSAFE_FILL_ON_FAILURE + if the function fails, the low byte of dwFlags will be + used to fill all of the destination buffer, and it will + be null terminated. + + STRSAFE_NO_TRUNCATION / + STRSAFE_NULL_ON_FAILURE + if the function fails, the destination buffer will be set + to the empty string. + +Notes: + pszDest should not be NULL unless the STRSAFE_IGNORE_NULLS flag is specified. + If STRSAFE_IGNORE_NULLS is passed and pszDest is NULL, an error may still be + returned even though NULLS are ignored + + cbDest must be > sizeof(TCHAR) for this function to succeed + +Return Value: + + S_OK - data was read from stdin and copied, and the resultant + dest string was null terminated + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + STRSAFE_E_END_OF_FILE / + HRESULT_CODE(hr) == ERROR_HANDLE_EOF + - this return value indicates an error or end-of-file + condition, use feof or ferror to determine which one has + occured. + + STRSAFE_E_INSUFFICIENT_BUFFER / + HRESULT_CODE(hr) == ERROR_INSUFFICIENT_BUFFER + - this return value is an indication that there was + insufficient space in the destination buffer to copy any + data + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +#ifndef STRSAFE_LIB_IMPL +STRSAFE_INLINE_API StringCbGetsExA(char* pszDest, size_t cbDest, char** ppszDestEnd, size_t* pbRemaining, unsigned long dwFlags); +STRSAFE_INLINE_API StringCbGetsExW(wchar_t* pszDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags); +#ifdef UNICODE +#define StringCbGetsEx StringCbGetsExW +#else +#define StringCbGetsEx StringCbGetsExA +#endif // !UNICODE + +STRSAFE_INLINE_API StringCbGetsExA(char* pszDest, size_t cbDest, char** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(char); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringGetsExWorkerA(pszDest, cchDest, cbDest, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || + (hr == STRSAFE_E_INSUFFICIENT_BUFFER) || + (hr == STRSAFE_E_END_OF_FILE)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(char) since cchRemaining < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcbRemaining = (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)); + } + } + + return hr; +} + +STRSAFE_INLINE_API StringCbGetsExW(wchar_t* pszDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcbRemaining, unsigned long dwFlags) +{ + HRESULT hr; + size_t cchDest; + size_t cchRemaining = 0; + + cchDest = cbDest / sizeof(wchar_t); + + if (cchDest > STRSAFE_MAX_CCH) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringGetsExWorkerW(pszDest, cchDest, cbDest, ppszDestEnd, &cchRemaining, dwFlags); + } + + if (SUCCEEDED(hr) || + (hr == STRSAFE_E_INSUFFICIENT_BUFFER) || + (hr == STRSAFE_E_END_OF_FILE)) + { + if (pcbRemaining) + { + // safe to multiply cchRemaining * sizeof(wchar_t) since cchRemaining < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcbRemaining = (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)); + } + } + + return hr; +} +#endif // !STRSAFE_NO_CB_FUNCTIONS +#endif // !STRSAFE_LIB_IMPL + +#ifndef STRSAFE_NO_CCH_FUNCTIONS +/*++ + +STDAPI +StringCchLength( + IN LPCTSTR psz, + IN size_t cchMax, + OUT size_t* pcch OPTIONAL + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strlen'. + It is used to make sure a string is not larger than a given length, and + it optionally returns the current length in characters not including + the null terminator. + + This function returns a hresult, and not a pointer. It returns + S_OK if the string is non-null and the length including the null + terminator is less than or equal to cchMax characters. + +Arguments: + + psz - string to check the length of + + cchMax - maximum number of characters including the null terminator + that psz is allowed to contain + + pcch - if the function succeeds and pcch is non-null, the current length + in characters of psz excluding the null terminator will be returned. + This out parameter is equivalent to the return value of strlen(psz) + +Notes: + psz can be null but the function will fail + + cchMax should be greater than zero or the function will fail + +Return Value: + + S_OK - psz is non-null and the length including the null + terminator is less than or equal to cchMax characters + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +STRSAFEAPI StringCchLengthA(const char* psz, size_t cchMax, size_t* pcch); +STRSAFEAPI StringCchLengthW(const wchar_t* psz, size_t cchMax, size_t* pcch); +#ifdef UNICODE +#define StringCchLength StringCchLengthW +#else +#define StringCchLength StringCchLengthA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCchLengthA(const char* psz, size_t cchMax, size_t* pcch) +{ + HRESULT hr; + + if ((psz == NULL) || (cchMax > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringLengthWorkerA(psz, cchMax, pcch); + } + + return hr; +} + +STRSAFEAPI StringCchLengthW(const wchar_t* psz, size_t cchMax, size_t* pcch) +{ + HRESULT hr; + + if ((psz == NULL) || (cchMax > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringLengthWorkerW(psz, cchMax, pcch); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CCH_FUNCTIONS + + +#ifndef STRSAFE_NO_CB_FUNCTIONS +/*++ + +STDAPI +StringCbLength( + IN LPCTSTR psz, + IN size_t cbMax, + OUT size_t* pcb OPTIONAL + ); + +Routine Description: + + This routine is a safer version of the C built-in function 'strlen'. + It is used to make sure a string is not larger than a given length, and + it optionally returns the current length in bytes not including + the null terminator. + + This function returns a hresult, and not a pointer. It returns + S_OK if the string is non-null and the length including the null + terminator is less than or equal to cbMax bytes. + +Arguments: + + psz - string to check the length of + + cbMax - maximum number of bytes including the null terminator + that psz is allowed to contain + + pcb - if the function succeeds and pcb is non-null, the current length + in bytes of psz excluding the null terminator will be returned. + This out parameter is equivalent to the return value of strlen(psz) * sizeof(TCHAR) + +Notes: + psz can be null but the function will fail + + cbMax should be greater than or equal to sizeof(TCHAR) or the function will fail + +Return Value: + + S_OK - psz is non-null and the length including the null + terminator is less than or equal to cbMax bytes + + failure - you can use the macro HRESULT_CODE() to get a win32 + error code for all hresult failure cases + + It is strongly recommended to use the SUCCEEDED() / FAILED() macros to test the + return value of this function. + +--*/ + +STRSAFEAPI StringCbLengthA(const char* psz, size_t cchMax, size_t* pcch); +STRSAFEAPI StringCbLengthW(const wchar_t* psz, size_t cchMax, size_t* pcch); +#ifdef UNICODE +#define StringCbLength StringCbLengthW +#else +#define StringCbLength StringCbLengthA +#endif // !UNICODE + +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCbLengthA(const char* psz, size_t cbMax, size_t* pcb) +{ + HRESULT hr; + size_t cchMax; + size_t cch = 0; + + cchMax = cbMax / sizeof(char); + + if ((psz == NULL) || (cchMax > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringLengthWorkerA(psz, cchMax, &cch); + } + + if (SUCCEEDED(hr) && pcb) + { + // safe to multiply cch * sizeof(char) since cch < STRSAFE_MAX_CCH and sizeof(char) is 1 + *pcb = cch * sizeof(char); + } + + return hr; +} + +STRSAFEAPI StringCbLengthW(const wchar_t* psz, size_t cbMax, size_t* pcb) +{ + HRESULT hr; + size_t cchMax; + size_t cch = 0; + + cchMax = cbMax / sizeof(wchar_t); + + if ((psz == NULL) || (cchMax > STRSAFE_MAX_CCH)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = StringLengthWorkerW(psz, cchMax, &cch); + } + + if (SUCCEEDED(hr) && pcb) + { + // safe to multiply cch * sizeof(wchar_t) since cch < STRSAFE_MAX_CCH and sizeof(wchar_t) is 2 + *pcb = cch * sizeof(wchar_t); + } + + return hr; +} +#endif // STRSAFE_INLINE +#endif // !STRSAFE_NO_CB_FUNCTIONS + + +// these are the worker functions that actually do the work +#ifdef STRSAFE_INLINE +STRSAFEAPI StringCopyWorkerA(char* pszDest, size_t cchDest, const char* pszSrc) +{ + HRESULT hr = S_OK; + + if (cchDest == 0) + { + // can not null terminate a zero-byte dest buffer + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + while (cchDest && (*pszSrc != '\0')) + { + *pszDest++ = *pszSrc++; + cchDest--; + } + + if (cchDest == 0) + { + // we are going to truncate pszDest + pszDest--; + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDest= '\0'; + } + + return hr; +} + +STRSAFEAPI StringCopyWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc) +{ + HRESULT hr = S_OK; + + if (cchDest == 0) + { + // can not null terminate a zero-byte dest buffer + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + while (cchDest && (*pszSrc != L'\0')) + { + *pszDest++ = *pszSrc++; + cchDest--; + } + + if (cchDest == 0) + { + // we are going to truncate pszDest + pszDest--; + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDest= L'\0'; + } + + return hr; +} + +STRSAFEAPI StringCopyExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + char* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + + if (pszSrc == NULL) + { + pszSrc = ""; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + pszDestEnd = pszDest; + cchRemaining = 0; + + // only fail if there was actually src data to copy + if (*pszSrc != '\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + while (cchRemaining && (*pszSrc != '\0')) + { + *pszDestEnd++= *pszSrc++; + cchRemaining--; + } + + if (cchRemaining > 0) + { + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(char)) + (cbDest % sizeof(char))); + } + } + else + { + // we are going to truncate pszDest + pszDestEnd--; + cchRemaining++; + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDestEnd = '\0'; + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = '\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = '\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCopyExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + wchar_t* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(wchar_t)) || + // cbDest == (cchDest * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + + if (pszSrc == NULL) + { + pszSrc = L""; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + pszDestEnd = pszDest; + cchRemaining = 0; + + // only fail if there was actually src data to copy + if (*pszSrc != L'\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + while (cchRemaining && (*pszSrc != L'\0')) + { + *pszDestEnd++= *pszSrc++; + cchRemaining--; + } + + if (cchRemaining > 0) + { + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + } + } + else + { + // we are going to truncate pszDest + pszDestEnd--; + cchRemaining++; + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDestEnd = L'\0'; + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = L'\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = L'\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCopyNWorkerA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchSrc) +{ + HRESULT hr = S_OK; + + if (cchDest == 0) + { + // can not null terminate a zero-byte dest buffer + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + while (cchDest && cchSrc && (*pszSrc != '\0')) + { + *pszDest++= *pszSrc++; + cchDest--; + cchSrc--; + } + + if (cchDest == 0) + { + // we are going to truncate pszDest + pszDest--; + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDest= '\0'; + } + + return hr; +} + +STRSAFEAPI StringCopyNWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchSrc) +{ + HRESULT hr = S_OK; + + if (cchDest == 0) + { + // can not null terminate a zero-byte dest buffer + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + while (cchDest && cchSrc && (*pszSrc != L'\0')) + { + *pszDest++= *pszSrc++; + cchDest--; + cchSrc--; + } + + if (cchDest == 0) + { + // we are going to truncate pszDest + pszDest--; + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDest= L'\0'; + } + + return hr; +} + +STRSAFEAPI StringCopyNExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, size_t cchSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + char* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + + if (pszSrc == NULL) + { + pszSrc = ""; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + pszDestEnd = pszDest; + cchRemaining = 0; + + // only fail if there was actually src data to copy + if (*pszSrc != '\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + while (cchRemaining && cchSrc && (*pszSrc != '\0')) + { + *pszDestEnd++= *pszSrc++; + cchRemaining--; + cchSrc--; + } + + if (cchRemaining > 0) + { + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(char)) + (cbDest % sizeof(char))); + } + } + else + { + // we are going to truncate pszDest + pszDestEnd--; + cchRemaining++; + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDestEnd = '\0'; + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = '\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = '\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCopyNExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, size_t cchSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + wchar_t* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(wchar_t)) || + // cbDest == (cchDest * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + + if (pszSrc == NULL) + { + pszSrc = L""; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + pszDestEnd = pszDest; + cchRemaining = 0; + + // only fail if there was actually src data to copy + if (*pszSrc != L'\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + while (cchRemaining && cchSrc && (*pszSrc != L'\0')) + { + *pszDestEnd++= *pszSrc++; + cchRemaining--; + cchSrc--; + } + + if (cchRemaining > 0) + { + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + } + } + else + { + // we are going to truncate pszDest + pszDestEnd--; + cchRemaining++; + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + + *pszDestEnd = L'\0'; + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = L'\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = L'\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCatWorkerA(char* pszDest, size_t cchDest, const char* pszSrc) +{ + HRESULT hr; + size_t cchDestCurrent; + + hr = StringLengthWorkerA(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + hr = StringCopyWorkerA(pszDest + cchDestCurrent, + cchDest - cchDestCurrent, + pszSrc); + } + + return hr; +} + +STRSAFEAPI StringCatWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc) +{ + HRESULT hr; + size_t cchDestCurrent; + + hr = StringLengthWorkerW(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + hr = StringCopyWorkerW(pszDest + cchDestCurrent, + cchDest - cchDestCurrent, + pszSrc); + } + + return hr; +} + +STRSAFEAPI StringCatExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + char* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cchDestCurrent; + + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest == 0) && (cbDest == 0)) + { + cchDestCurrent = 0; + } + else + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + else + { + hr = StringLengthWorkerA(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (pszSrc == NULL) + { + pszSrc = ""; + } + } + else + { + hr = StringLengthWorkerA(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + // only fail if there was actually src data to append + if (*pszSrc != '\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + // we handle the STRSAFE_FILL_ON_FAILURE and STRSAFE_NULL_ON_FAILURE cases below, so do not pass + // those flags through + hr = StringCopyExWorkerA(pszDestEnd, + cchRemaining, + (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)), + pszSrc, + &pszDestEnd, + &cchRemaining, + dwFlags & (~(STRSAFE_FILL_ON_FAILURE | STRSAFE_NULL_ON_FAILURE))); + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + // STRSAFE_NO_TRUNCATION is taken care of by StringCopyExWorkerA() + + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else + if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = '\0'; + } + } + + if (dwFlags & STRSAFE_NULL_ON_FAILURE) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = '\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCatExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + wchar_t* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(wchar_t)) || + // cbDest == (cchDest * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + size_t cchDestCurrent; + + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest == 0) && (cbDest == 0)) + { + cchDestCurrent = 0; + } + else + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + else + { + hr = StringLengthWorkerW(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (pszSrc == NULL) + { + pszSrc = L""; + } + } + else + { + hr = StringLengthWorkerW(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + // only fail if there was actually src data to append + if (*pszSrc != L'\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + // we handle the STRSAFE_FILL_ON_FAILURE and STRSAFE_NULL_ON_FAILURE cases below, so do not pass + // those flags through + hr = StringCopyExWorkerW(pszDestEnd, + cchRemaining, + (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)), + pszSrc, + &pszDestEnd, + &cchRemaining, + dwFlags & (~(STRSAFE_FILL_ON_FAILURE | STRSAFE_NULL_ON_FAILURE))); + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + // STRSAFE_NO_TRUNCATION is taken care of by StringCopyExWorkerW() + + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = L'\0'; + } + } + + if (dwFlags & STRSAFE_NULL_ON_FAILURE) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = L'\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCatNWorkerA(char* pszDest, size_t cchDest, const char* pszSrc, size_t cchMaxAppend) +{ + HRESULT hr; + size_t cchDestCurrent; + + hr = StringLengthWorkerA(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + hr = StringCopyNWorkerA(pszDest + cchDestCurrent, + cchDest - cchDestCurrent, + pszSrc, + cchMaxAppend); + } + + return hr; +} + +STRSAFEAPI StringCatNWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszSrc, size_t cchMaxAppend) +{ + HRESULT hr; + size_t cchDestCurrent; + + hr = StringLengthWorkerW(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + hr = StringCopyNWorkerW(pszDest + cchDestCurrent, + cchDest - cchDestCurrent, + pszSrc, + cchMaxAppend); + } + + return hr; +} + +STRSAFEAPI StringCatNExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, const char* pszSrc, size_t cchMaxAppend, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + char* pszDestEnd = pszDest; + size_t cchRemaining = 0; + size_t cchDestCurrent = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest == 0) && (cbDest == 0)) + { + cchDestCurrent = 0; + } + else + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + else + { + hr = StringLengthWorkerA(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (pszSrc == NULL) + { + pszSrc = ""; + } + } + else + { + hr = StringLengthWorkerA(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + // only fail if there was actually src data to append + if (*pszSrc != '\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + // we handle the STRSAFE_FILL_ON_FAILURE and STRSAFE_NULL_ON_FAILURE cases below, so do not pass + // those flags through + hr = StringCopyNExWorkerA(pszDestEnd, + cchRemaining, + (cchRemaining * sizeof(char)) + (cbDest % sizeof(char)), + pszSrc, + cchMaxAppend, + &pszDestEnd, + &cchRemaining, + dwFlags & (~(STRSAFE_FILL_ON_FAILURE | STRSAFE_NULL_ON_FAILURE))); + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + // STRSAFE_NO_TRUNCATION is taken care of by StringCopyNExWorkerA() + + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = '\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = '\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringCatNExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, const wchar_t* pszSrc, size_t cchMaxAppend, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + wchar_t* pszDestEnd = pszDest; + size_t cchRemaining = 0; + size_t cchDestCurrent = 0; + + + // ASSERT(cbDest == (cchDest * sizeof(wchar_t)) || + // cbDest == (cchDest * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest == 0) && (cbDest == 0)) + { + cchDestCurrent = 0; + } + else + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + else + { + hr = StringLengthWorkerW(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (pszSrc == NULL) + { + pszSrc = L""; + } + } + else + { + hr = StringLengthWorkerW(pszDest, cchDest, &cchDestCurrent); + + if (SUCCEEDED(hr)) + { + pszDestEnd = pszDest + cchDestCurrent; + cchRemaining = cchDest - cchDestCurrent; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + // only fail if there was actually src data to append + if (*pszSrc != L'\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + // we handle the STRSAFE_FILL_ON_FAILURE and STRSAFE_NULL_ON_FAILURE cases below, so do not pass + // those flags through + hr = StringCopyNExWorkerW(pszDestEnd, + cchRemaining, + (cchRemaining * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t)), + pszSrc, + cchMaxAppend, + &pszDestEnd, + &cchRemaining, + dwFlags & (~(STRSAFE_FILL_ON_FAILURE | STRSAFE_NULL_ON_FAILURE))); + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + // STRSAFE_NO_TRUNCATION is taken care of by StringCopyNExWorkerW() + + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = L'\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = L'\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringVPrintfWorkerA(char* pszDest, size_t cchDest, const char* pszFormat, va_list argList) +{ + HRESULT hr = S_OK; + + if (cchDest == 0) + { + // can not null terminate a zero-byte dest buffer + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + int iRet; + size_t cchMax; + + // leave the last space for the null terminator + cchMax = cchDest - 1; + + iRet = _vsnprintf(pszDest, cchMax, pszFormat, argList); + // ASSERT((iRet < 0) || (((size_t)iRet) <= cchMax)); + + if ((iRet < 0) || (((size_t)iRet) > cchMax)) + { + // need to null terminate the string + pszDest += cchMax; + *pszDest = '\0'; + + // we have truncated pszDest + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + else if (((size_t)iRet) == cchMax) + { + // need to null terminate the string + pszDest += cchMax; + *pszDest = '\0'; + } + } + + return hr; +} + +STRSAFEAPI StringVPrintfWorkerW(wchar_t* pszDest, size_t cchDest, const wchar_t* pszFormat, va_list argList) +{ + HRESULT hr = S_OK; + + if (cchDest == 0) + { + // can not null terminate a zero-byte dest buffer + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + int iRet; + size_t cchMax; + + // leave the last space for the null terminator + cchMax = cchDest - 1; + + iRet = _vsnwprintf(pszDest, cchMax, pszFormat, argList); + // ASSERT((iRet < 0) || (((size_t)iRet) <= cchMax)); + + if ((iRet < 0) || (((size_t)iRet) > cchMax)) + { + // need to null terminate the string + pszDest += cchMax; + *pszDest = L'\0'; + + // we have truncated pszDest + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + else if (((size_t)iRet) == cchMax) + { + // need to null terminate the string + pszDest += cchMax; + *pszDest = L'\0'; + } + } + + return hr; +} + +STRSAFEAPI StringVPrintfExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const char* pszFormat, va_list argList) +{ + HRESULT hr = S_OK; + char* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + + if (pszFormat == NULL) + { + pszFormat = ""; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + pszDestEnd = pszDest; + cchRemaining = 0; + + // only fail if there was actually a non-empty format string + if (*pszFormat != '\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + int iRet; + size_t cchMax; + + // leave the last space for the null terminator + cchMax = cchDest - 1; + + iRet = _vsnprintf(pszDest, cchMax, pszFormat, argList); + // ASSERT((iRet < 0) || (((size_t)iRet) <= cchMax)); + + if ((iRet < 0) || (((size_t)iRet) > cchMax)) + { + // we have truncated pszDest + pszDestEnd = pszDest + cchMax; + cchRemaining = 1; + + // need to null terminate the string + *pszDestEnd = '\0'; + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + else if (((size_t)iRet) == cchMax) + { + // string fit perfectly + pszDestEnd = pszDest + cchMax; + cchRemaining = 1; + + // need to null terminate the string + *pszDestEnd = '\0'; + } + else if (((size_t)iRet) < cchMax) + { + // there is extra room + pszDestEnd = pszDest + iRet; + cchRemaining = cchDest - iRet; + + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(char)) + (cbDest % sizeof(char))); + } + } + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = '\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = '\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringVPrintfExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags, const wchar_t* pszFormat, va_list argList) +{ + HRESULT hr = S_OK; + wchar_t* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(wchar_t)) || + // cbDest == (cchDest * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + + if (pszFormat == NULL) + { + pszFormat = L""; + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest == 0) + { + pszDestEnd = pszDest; + cchRemaining = 0; + + // only fail if there was actually a non-empty format string + if (*pszFormat != L'\0') + { + if (pszDest == NULL) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + } + } + else + { + int iRet; + size_t cchMax; + + // leave the last space for the null terminator + cchMax = cchDest - 1; + + iRet = _vsnwprintf(pszDest, cchMax, pszFormat, argList); + // ASSERT((iRet < 0) || (((size_t)iRet) <= cchMax)); + + if ((iRet < 0) || (((size_t)iRet) > cchMax)) + { + // we have truncated pszDest + pszDestEnd = pszDest + cchMax; + cchRemaining = 1; + + // need to null terminate the string + *pszDestEnd = L'\0'; + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + else if (((size_t)iRet) == cchMax) + { + // string fit perfectly + pszDestEnd = pszDest + cchMax; + cchRemaining = 1; + + // need to null terminate the string + *pszDestEnd = L'\0'; + } + else if (((size_t)iRet) < cchMax) + { + // there is extra room + pszDestEnd = pszDest + iRet; + cchRemaining = cchDest - iRet; + + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + } + } + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = L'\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = L'\0'; + } + } + } + } + + if (SUCCEEDED(hr) || (hr == STRSAFE_E_INSUFFICIENT_BUFFER)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFEAPI StringLengthWorkerA(const char* psz, size_t cchMax, size_t* pcch) +{ + HRESULT hr = S_OK; + size_t cchMaxPrev = cchMax; + + while (cchMax && (*psz != '\0')) + { + psz++; + cchMax--; + } + + if (cchMax == 0) + { + // the string is longer than cchMax + hr = STRSAFE_E_INVALID_PARAMETER; + } + + if (SUCCEEDED(hr) && pcch) + { + *pcch = cchMaxPrev - cchMax; + } + + return hr; +} + +STRSAFEAPI StringLengthWorkerW(const wchar_t* psz, size_t cchMax, size_t* pcch) +{ + HRESULT hr = S_OK; + size_t cchMaxPrev = cchMax; + + while (cchMax && (*psz != L'\0')) + { + psz++; + cchMax--; + } + + if (cchMax == 0) + { + // the string is longer than cchMax + hr = STRSAFE_E_INVALID_PARAMETER; + } + + if (SUCCEEDED(hr) && pcch) + { + *pcch = cchMaxPrev - cchMax; + } + + return hr; +} +#endif // STRSAFE_INLINE + +#ifndef STRSAFE_LIB_IMPL +STRSAFE_INLINE_API StringGetsExWorkerA(char* pszDest, size_t cchDest, size_t cbDest, char** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + char* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest <= 1) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + if (cchDest == 1) + { + *pszDestEnd = '\0'; + } + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + else + { + char ch; + + pszDestEnd = pszDest; + cchRemaining = cchDest; + + while ((cchRemaining > 1) && (ch = (char)getc(stdin)) != '\n') + { + if (ch == EOF) + { + if (pszDestEnd == pszDest) + { + // we failed to read anything from stdin + hr = STRSAFE_E_END_OF_FILE; + } + break; + } + + *pszDestEnd = ch; + + pszDestEnd++; + cchRemaining--; + } + + if (cchRemaining > 0) + { + // there is extra room + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(char)) + (cbDest % sizeof(char))); + } + } + + *pszDestEnd = '\0'; + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = '\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = '\0'; + } + } + } + } + + if (SUCCEEDED(hr) || + (hr == STRSAFE_E_INSUFFICIENT_BUFFER) || + (hr == STRSAFE_E_END_OF_FILE)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} + +STRSAFE_INLINE_API StringGetsExWorkerW(wchar_t* pszDest, size_t cchDest, size_t cbDest, wchar_t** ppszDestEnd, size_t* pcchRemaining, unsigned long dwFlags) +{ + HRESULT hr = S_OK; + wchar_t* pszDestEnd = pszDest; + size_t cchRemaining = 0; + + // ASSERT(cbDest == (cchDest * sizeof(char)) || + // cbDest == (cchDest * sizeof(char)) + (cbDest % sizeof(char))); + + // only accept valid flags + if (dwFlags & (~STRSAFE_VALID_FLAGS)) + { + hr = STRSAFE_E_INVALID_PARAMETER; + } + else + { + if (dwFlags & STRSAFE_IGNORE_NULLS) + { + if (pszDest == NULL) + { + if ((cchDest != 0) || (cbDest != 0)) + { + // NULL pszDest and non-zero cchDest/cbDest is invalid + hr = STRSAFE_E_INVALID_PARAMETER; + } + } + } + + if (SUCCEEDED(hr)) + { + if (cchDest <= 1) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + if (cchDest == 1) + { + *pszDestEnd = L'\0'; + } + + hr = STRSAFE_E_INSUFFICIENT_BUFFER; + } + else + { + wchar_t ch; + + pszDestEnd = pszDest; + cchRemaining = cchDest; + + while ((cchRemaining > 1) && (ch = (wchar_t)getwc(stdin)) != L'\n') + { + if (ch == EOF) + { + if (pszDestEnd == pszDest) + { + // we failed to read anything from stdin + hr = STRSAFE_E_END_OF_FILE; + } + break; + } + + *pszDestEnd = ch; + + pszDestEnd++; + cchRemaining--; + } + + if (cchRemaining > 0) + { + // there is extra room + if (dwFlags & STRSAFE_FILL_BEHIND_NULL) + { + memset(pszDestEnd + 1, STRSAFE_GET_FILL_PATTERN(dwFlags), ((cchRemaining - 1) * sizeof(wchar_t)) + (cbDest % sizeof(wchar_t))); + } + } + + *pszDestEnd = L'\0'; + } + } + } + + if (FAILED(hr)) + { + if (pszDest) + { + if (dwFlags & STRSAFE_FILL_ON_FAILURE) + { + memset(pszDest, STRSAFE_GET_FILL_PATTERN(dwFlags), cbDest); + + if (STRSAFE_GET_FILL_PATTERN(dwFlags) == 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + } + else if (cchDest > 0) + { + pszDestEnd = pszDest + cchDest - 1; + cchRemaining = 1; + + // null terminate the end of the string + *pszDestEnd = L'\0'; + } + } + + if (dwFlags & (STRSAFE_NULL_ON_FAILURE | STRSAFE_NO_TRUNCATION)) + { + if (cchDest > 0) + { + pszDestEnd = pszDest; + cchRemaining = cchDest; + + // null terminate the beginning of the string + *pszDestEnd = L'\0'; + } + } + } + } + + if (SUCCEEDED(hr) || + (hr == STRSAFE_E_INSUFFICIENT_BUFFER) || + (hr == STRSAFE_E_END_OF_FILE)) + { + if (ppszDestEnd) + { + *ppszDestEnd = pszDestEnd; + } + + if (pcchRemaining) + { + *pcchRemaining = cchRemaining; + } + } + + return hr; +} +#endif // !STRSAFE_LIB_IMPL + + +// Do not call these functions, they are worker functions for internal use within this file +#ifdef DEPRECATE_SUPPORTED +#pragma deprecated(StringCopyWorkerA) +#pragma deprecated(StringCopyWorkerW) +#pragma deprecated(StringCopyExWorkerA) +#pragma deprecated(StringCopyExWorkerW) +#pragma deprecated(StringCatWorkerA) +#pragma deprecated(StringCatWorkerW) +#pragma deprecated(StringCatExWorkerA) +#pragma deprecated(StringCatExWorkerW) +#pragma deprecated(StringCatNWorkerA) +#pragma deprecated(StringCatNWorkerW) +#pragma deprecated(StringCatNExWorkerA) +#pragma deprecated(StringCatNExWorkerW) +#pragma deprecated(StringVPrintfWorkerA) +#pragma deprecated(StringVPrintfWorkerW) +#pragma deprecated(StringVPrintfExWorkerA) +#pragma deprecated(StringVPrintfExWorkerW) +#pragma deprecated(StringLengthWorkerA) +#pragma deprecated(StringLengthWorkerW) +#else +#define StringCopyWorkerA StringCopyWorkerA_instead_use_StringCchCopyA_or_StringCchCopyExA; +#define StringCopyWorkerW StringCopyWorkerW_instead_use_StringCchCopyW_or_StringCchCopyExW; +#define StringCopyExWorkerA StringCopyExWorkerA_instead_use_StringCchCopyA_or_StringCchCopyExA; +#define StringCopyExWorkerW StringCopyExWorkerW_instead_use_StringCchCopyW_or_StringCchCopyExW; +#define StringCatWorkerA StringCatWorkerA_instead_use_StringCchCatA_or_StringCchCatExA; +#define StringCatWorkerW StringCatWorkerW_instead_use_StringCchCatW_or_StringCchCatExW; +#define StringCatExWorkerA StringCatExWorkerA_instead_use_StringCchCatA_or_StringCchCatExA; +#define StringCatExWorkerW StringCatExWorkerW_instead_use_StringCchCatW_or_StringCchCatExW; +#define StringCatNWorkerA StringCatNWorkerA_instead_use_StringCchCatNA_or_StrincCbCatNA; +#define StringCatNWorkerW StringCatNWorkerW_instead_use_StringCchCatNW_or_StringCbCatNW; +#define StringCatNExWorkerA StringCatNExWorkerA_instead_use_StringCchCatNExA_or_StringCbCatNExA; +#define StringCatNExWorkerW StringCatNExWorkerW_instead_use_StringCchCatNExW_or_StringCbCatNExW; +#define StringVPrintfWorkerA StringVPrintfWorkerA_instead_use_StringCchVPrintfA_or_StringCchVPrintfExA; +#define StringVPrintfWorkerW StringVPrintfWorkerW_instead_use_StringCchVPrintfW_or_StringCchVPrintfExW; +#define StringVPrintfExWorkerA StringVPrintfExWorkerA_instead_use_StringCchVPrintfA_or_StringCchVPrintfExA; +#define StringVPrintfExWorkerW StringVPrintfExWorkerW_instead_use_StringCchVPrintfW_or_StringCchVPrintfExW; +#define StringLengthWorkerA StringLengthWorkerA_instead_use_StringCchLengthA_or_StringCbLengthA; +#define StringLengthWorkerW StringLengthWorkerW_instead_use_StringCchLengthW_or_StringCbLengthW; +#endif // !DEPRECATE_SUPPORTED + + +#ifndef STRSAFE_NO_DEPRECATE +// Deprecate all of the unsafe functions to generate compiletime errors. If you do not want +// this then you can #define STRSAFE_NO_DEPRECATE before including this file. +#ifdef DEPRECATE_SUPPORTED + +// First all the names that are a/w variants (or shouldn't be #defined by now anyway). +#pragma deprecated(lstrcpyA) +#pragma deprecated(lstrcpyW) +#pragma deprecated(lstrcatA) +#pragma deprecated(lstrcatW) +#pragma deprecated(wsprintfA) +#pragma deprecated(wsprintfW) + +#pragma deprecated(StrCpyW) +#pragma deprecated(StrCatW) +#pragma deprecated(StrNCatA) +#pragma deprecated(StrNCatW) +#pragma deprecated(StrCatNA) +#pragma deprecated(StrCatNW) +#pragma deprecated(wvsprintfA) +#pragma deprecated(wvsprintfW) + +#pragma deprecated(strcpy) +#pragma deprecated(wcscpy) +#pragma deprecated(strcat) +#pragma deprecated(wcscat) +#pragma deprecated(sprintf) +#pragma deprecated(swprintf) +#pragma deprecated(vsprintf) +#pragma deprecated(vswprintf) +#pragma deprecated(_snprintf) +#pragma deprecated(_snwprintf) +#pragma deprecated(_vsnprintf) +#pragma deprecated(_vsnwprintf) +#pragma deprecated(gets) +#pragma deprecated(_getws) + +// Then all the windows.h names - we need to undef and redef based on UNICODE setting +#undef lstrcpy +#undef lstrcat +#undef wsprintf +#undef wvsprintf +#pragma deprecated(lstrcpy) +#pragma deprecated(lstrcat) +#pragma deprecated(wsprintf) +#pragma deprecated(wvsprintf) +#ifdef UNICODE +#define lstrcpy lstrcpyW +#define lstrcat lstrcatW +#define wsprintf wsprintfW +#define wvsprintf wvsprintfW +#else +#define lstrcpy lstrcpyA +#define lstrcat lstrcatA +#define wsprintf wsprintfA +#define wvsprintf wvsprintfA +#endif + +// Then the shlwapi names - they key off UNICODE also. +#undef StrCpyA +#undef StrCpy +#undef StrCatA +#undef StrCat +#undef StrNCat +#undef StrCatN +#pragma deprecated(StrCpyA) +#pragma deprecated(StrCatA) +#pragma deprecated(StrCatN) +#pragma deprecated(StrCpy) +#pragma deprecated(StrCat) +#pragma deprecated(StrNCat) +#define StrCpyA lstrcpyA +#define StrCatA lstrcatA +#define StrCatN StrNCat +#ifdef UNICODE +#define StrCpy StrCpyW +#define StrCat StrCatW +#define StrNCat StrNCatW +#else +#define StrCpy lstrcpyA +#define StrCat lstrcatA +#define StrNCat StrNCatA +#endif + +// Then all the CRT names - we need to undef/redef based on _UNICODE value. +#undef _tcscpy +#undef _ftcscpy +#undef _tcscat +#undef _ftcscat +#undef _stprintf +#undef _sntprintf +#undef _vstprintf +#undef _vsntprintf +#undef _getts +#pragma deprecated(_tcscpy) +#pragma deprecated(_ftcscpy) +#pragma deprecated(_tcscat) +#pragma deprecated(_ftcscat) +#pragma deprecated(_stprintf) +#pragma deprecated(_sntprintf) +#pragma deprecated(_vstprintf) +#pragma deprecated(_vsntprintf) +#pragma deprecated(_getts) +#ifdef _UNICODE +#define _tcscpy wcscpy +#define _ftcscpy wcscpy +#define _tcscat wcscat +#define _ftcscat wcscat +#define _stprintf swprintf +#define _sntprintf _snwprintf +#define _vstprintf vswprintf +#define _vsntprintf _vsnwprintf +#define _getts _getws +#else +#define _tcscpy strcpy +#define _ftcscpy strcpy +#define _tcscat strcat +#define _ftcscat strcat +#define _stprintf sprintf +#define _sntprintf _snprintf +#define _vstprintf vsprintf +#define _vsntprintf _vsnprintf +#define _getts gets +#endif + +#else // DEPRECATE_SUPPORTED + +#undef strcpy +#define strcpy strcpy_instead_use_StringCbCopyA_or_StringCchCopyA; + +#undef wcscpy +#define wcscpy wcscpy_instead_use_StringCbCopyW_or_StringCchCopyW; + +#undef strcat +#define strcat strcat_instead_use_StringCbCatA_or_StringCchCatA; + +#undef wcscat +#define wcscat wcscat_instead_use_StringCbCatW_or_StringCchCatW; + +#undef sprintf +#define sprintf sprintf_instead_use_StringCbPrintfA_or_StringCchPrintfA; + +#undef swprintf +#define swprintf swprintf_instead_use_StringCbPrintfW_or_StringCchPrintfW; + +#undef vsprintf +#define vsprintf vsprintf_instead_use_StringCbVPrintfA_or_StringCchVPrintfA; + +#undef vswprintf +#define vswprintf vswprintf_instead_use_StringCbVPrintfW_or_StringCchVPrintfW; + +#undef _snprintf +#define _snprintf _snprintf_instead_use_StringCbPrintfA_or_StringCchPrintfA; + +#undef _snwprintf +#define _snwprintf _snwprintf_instead_use_StringCbPrintfW_or_StringCchPrintfW; + +#undef _vsnprintf +#define _vsnprintf _vsnprintf_instead_use_StringCbVPrintfA_or_StringCchVPrintfA; + +#undef _vsnwprintf +#define _vsnwprintf _vsnwprintf_instead_use_StringCbVPrintfW_or_StringCchVPrintfW; + +#undef strcpyA +#define strcpyA strcpyA_instead_use_StringCbCopyA_or_StringCchCopyA; + +#undef strcpyW +#define strcpyW strcpyW_instead_use_StringCbCopyW_or_StringCchCopyW; + +#undef lstrcpy +#define lstrcpy lstrcpy_instead_use_StringCbCopy_or_StringCchCopy; + +#undef lstrcpyA +#define lstrcpyA lstrcpyA_instead_use_StringCbCopyA_or_StringCchCopyA; + +#undef lstrcpyW +#define lstrcpyW lstrcpyW_instead_use_StringCbCopyW_or_StringCchCopyW; + +#undef StrCpy +#define StrCpy StrCpy_instead_use_StringCbCopy_or_StringCchCopy; + +#undef StrCpyA +#define StrCpyA StrCpyA_instead_use_StringCbCopyA_or_StringCchCopyA; + +#undef StrCpyW +#define StrCpyW StrCpyW_instead_use_StringCbCopyW_or_StringCchCopyW; + +#undef _tcscpy +#define _tcscpy _tcscpy_instead_use_StringCbCopy_or_StringCchCopy; + +#undef _ftcscpy +#define _ftcscpy _ftcscpy_instead_use_StringCbCopy_or_StringCchCopy; + +#undef lstrcat +#define lstrcat lstrcat_instead_use_StringCbCat_or_StringCchCat; + +#undef lstrcatA +#define lstrcatA lstrcatA_instead_use_StringCbCatA_or_StringCchCatA; + +#undef lstrcatW +#define lstrcatW lstrcatW_instead_use_StringCbCatW_or_StringCchCatW; + +#undef StrCat +#define StrCat StrCat_instead_use_StringCbCat_or_StringCchCat; + +#undef StrCatA +#define StrCatA StrCatA_instead_use_StringCbCatA_or_StringCchCatA; + +#undef StrCatW +#define StrCatW StrCatW_instead_use_StringCbCatW_or_StringCchCatW; + +#undef StrNCat +#define StrNCat StrNCat_instead_use_StringCbCatN_or_StringCchCatN; + +#undef StrNCatA +#define StrNCatA StrNCatA_instead_use_StringCbCatNA_or_StringCchCatNA; + +#undef StrNCatW +#define StrNCatW StrNCatW_instead_use_StringCbCatNW_or_StringCchCatNW; + +#undef StrCatN +#define StrCatN StrCatN_instead_use_StringCbCatN_or_StringCchCatN; + +#undef StrCatNA +#define StrCatNA StrCatNA_instead_use_StringCbCatNA_or_StringCchCatNA; + +#undef StrCatNW +#define StrCatNW StrCatNW_instead_use_StringCbCatNW_or_StringCchCatNW; + +#undef _tcscat +#define _tcscat _tcscat_instead_use_StringCbCat_or_StringCchCat; + +#undef _ftcscat +#define _ftcscat _ftcscat_instead_use_StringCbCat_or_StringCchCat; + +#undef wsprintf +#define wsprintf wsprintf_instead_use_StringCbPrintf_or_StringCchPrintf; + +#undef wsprintfA +#define wsprintfA wsprintfA_instead_use_StringCbPrintfA_or_StringCchPrintfA; + +#undef wsprintfW +#define wsprintfW wsprintfW_instead_use_StringCbPrintfW_or_StringCchPrintfW; + +#undef wvsprintf +#define wvsprintf wvsprintf_instead_use_StringCbVPrintf_or_StringCchVPrintf; + +#undef wvsprintfA +#define wvsprintfA wvsprintfA_instead_use_StringCbVPrintfA_or_StringCchVPrintfA; + +#undef wvsprintfW +#define wvsprintfW wvsprintfW_instead_use_StringCbVPrintfW_or_StringCchVPrintfW; + +#undef _vstprintf +#define _vstprintf _vstprintf_instead_use_StringCbVPrintf_or_StringCchVPrintf; + +#undef _vsntprintf +#define _vsntprintf _vsntprintf_instead_use_StringCbVPrintf_or_StringCchVPrintf; + +#undef _stprintf +#define _stprintf _stprintf_instead_use_StringCbPrintf_or_StringCchPrintf; + +#undef _sntprintf +#define _sntprintf _sntprintf_instead_use_StringCbPrintf_or_StringCchPrintf; + +#undef _getts +#define _getts _getts_instead_use_StringCbGets_or_StringCchGets; + +#undef gets +#define gets _gets_instead_use_StringCbGetsA_or_StringCchGetsA; + +#undef _getws +#define _getws _getws_instead_use_StringCbGetsW_or_StringCchGetsW; + +#endif // !DEPRECATE_SUPPORTED +#endif // !STRSAFE_NO_DEPRECATE + +#ifdef _NTSTRSAFE_H_INCLUDED_ +#pragma warning(pop) +#endif // _NTSTRSAFE_H_INCLUDED_ + +#endif // _STRSAFE_H_INCLUDED_