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annotate src/inet.c @ 0:4b915342e2a8

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LuaSocket 2.0.2 + CMake build description.
author Eric Wing <ewing . public |-at-| gmail . com>
date Tue, 26 Aug 2008 18:40:01 -0700
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4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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1 /*=========================================================================*\
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2 * Internet domain functions
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3 * LuaSocket toolkit
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4 *
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5 * RCS ID: $Id: inet.c,v 1.28 2005/10/07 04:40:59 diego Exp $
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6 \*=========================================================================*/
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7 #include <stdio.h>
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8 #include <string.h>
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9
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10 #include "lua.h"
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11 #include "lauxlib.h"
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12
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13 #include "inet.h"
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14
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15 /*=========================================================================*\
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16 * Internal function prototypes.
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17 \*=========================================================================*/
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18 static int inet_global_toip(lua_State *L);
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19 static int inet_global_tohostname(lua_State *L);
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20 static void inet_pushresolved(lua_State *L, struct hostent *hp);
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21 static int inet_global_gethostname(lua_State *L);
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22
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23 /* DNS functions */
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24 static luaL_reg func[] = {
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25 { "toip", inet_global_toip },
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26 { "tohostname", inet_global_tohostname },
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27 { "gethostname", inet_global_gethostname},
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28 { NULL, NULL}
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29 };
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30
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31 /*=========================================================================*\
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32 * Exported functions
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33 \*=========================================================================*/
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34 /*-------------------------------------------------------------------------*\
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35 * Initializes module
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36 \*-------------------------------------------------------------------------*/
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37 int inet_open(lua_State *L)
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38 {
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39 lua_pushstring(L, "dns");
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40 lua_newtable(L);
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41 luaL_openlib(L, NULL, func, 0);
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42 lua_settable(L, -3);
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43 return 0;
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44 }
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45
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46 /*=========================================================================*\
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47 * Global Lua functions
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48 \*=========================================================================*/
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49 /*-------------------------------------------------------------------------*\
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50 * Returns all information provided by the resolver given a host name
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51 * or ip address
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52 \*-------------------------------------------------------------------------*/
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53 static int inet_gethost(const char *address, struct hostent **hp) {
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54 struct in_addr addr;
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55 if (inet_aton(address, &addr))
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56 return socket_gethostbyaddr((char *) &addr, sizeof(addr), hp);
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57 else
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58 return socket_gethostbyname(address, hp);
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59 }
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60
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61 /*-------------------------------------------------------------------------*\
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62 * Returns all information provided by the resolver given a host name
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63 * or ip address
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64 \*-------------------------------------------------------------------------*/
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65 static int inet_global_tohostname(lua_State *L) {
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66 const char *address = luaL_checkstring(L, 1);
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67 struct hostent *hp = NULL;
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68 int err = inet_gethost(address, &hp);
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69 if (err != IO_DONE) {
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70 lua_pushnil(L);
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71 lua_pushstring(L, socket_hoststrerror(err));
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72 return 2;
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73 }
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74 lua_pushstring(L, hp->h_name);
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75 inet_pushresolved(L, hp);
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76 return 2;
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77 }
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78
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79 /*-------------------------------------------------------------------------*\
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80 * Returns all information provided by the resolver given a host name
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81 * or ip address
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82 \*-------------------------------------------------------------------------*/
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83 static int inet_global_toip(lua_State *L)
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84 {
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85 const char *address = luaL_checkstring(L, 1);
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86 struct hostent *hp = NULL;
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87 int err = inet_gethost(address, &hp);
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88 if (err != IO_DONE) {
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89 lua_pushnil(L);
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90 lua_pushstring(L, socket_hoststrerror(err));
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91 return 2;
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92 }
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93 lua_pushstring(L, inet_ntoa(*((struct in_addr *) hp->h_addr)));
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94 inet_pushresolved(L, hp);
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95 return 2;
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96 }
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97
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98
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99 /*-------------------------------------------------------------------------*\
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100 * Gets the host name
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101 \*-------------------------------------------------------------------------*/
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102 static int inet_global_gethostname(lua_State *L)
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103 {
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104 char name[257];
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105 name[256] = '\0';
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106 if (gethostname(name, 256) < 0) {
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107 lua_pushnil(L);
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108 lua_pushstring(L, "gethostname failed");
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109 return 2;
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110 } else {
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111 lua_pushstring(L, name);
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112 return 1;
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113 }
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114 }
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115
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116
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117
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118 /*=========================================================================*\
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119 * Lua methods
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120 \*=========================================================================*/
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121 /*-------------------------------------------------------------------------*\
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122 * Retrieves socket peer name
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123 \*-------------------------------------------------------------------------*/
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124 int inet_meth_getpeername(lua_State *L, p_socket ps)
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125 {
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126 struct sockaddr_in peer;
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127 socklen_t peer_len = sizeof(peer);
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128 if (getpeername(*ps, (SA *) &peer, &peer_len) < 0) {
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129 lua_pushnil(L);
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
130 lua_pushstring(L, "getpeername failed");
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
131 } else {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
132 lua_pushstring(L, inet_ntoa(peer.sin_addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
133 lua_pushnumber(L, ntohs(peer.sin_port));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
134 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
135 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
136 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
137
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
138 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
139 * Retrieves socket local name
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
140 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
141 int inet_meth_getsockname(lua_State *L, p_socket ps)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
142 {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
143 struct sockaddr_in local;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
144 socklen_t local_len = sizeof(local);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
145 if (getsockname(*ps, (SA *) &local, &local_len) < 0) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
146 lua_pushnil(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
147 lua_pushstring(L, "getsockname failed");
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
148 } else {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
149 lua_pushstring(L, inet_ntoa(local.sin_addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
150 lua_pushnumber(L, ntohs(local.sin_port));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
151 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
152 return 2;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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153 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
154
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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155 /*=========================================================================*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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156 * Internal functions
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
157 \*=========================================================================*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
158 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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159 * Passes all resolver information to Lua as a table
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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160 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
161 static void inet_pushresolved(lua_State *L, struct hostent *hp)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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diff changeset
162 {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
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163 char **alias;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
164 struct in_addr **addr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
165 int i, resolved;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
166 lua_newtable(L); resolved = lua_gettop(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
167 lua_pushstring(L, "name");
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
168 lua_pushstring(L, hp->h_name);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
169 lua_settable(L, resolved);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
170 lua_pushstring(L, "ip");
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
171 lua_pushstring(L, "alias");
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
172 i = 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
173 alias = hp->h_aliases;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
174 lua_newtable(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
175 if (alias) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
176 while (*alias) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
177 lua_pushnumber(L, i);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
178 lua_pushstring(L, *alias);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
179 lua_settable(L, -3);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
180 i++; alias++;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
181 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
182 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
183 lua_settable(L, resolved);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
184 i = 1;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
185 lua_newtable(L);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
186 addr = (struct in_addr **) hp->h_addr_list;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
187 if (addr) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
188 while (*addr) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
189 lua_pushnumber(L, i);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
190 lua_pushstring(L, inet_ntoa(**addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
191 lua_settable(L, -3);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
192 i++; addr++;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
193 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
194 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
195 lua_settable(L, resolved);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
196 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
197
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
198 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
199 * Tries to create a new inet socket
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
200 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
201 const char *inet_trycreate(p_socket ps, int type) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
202 return socket_strerror(socket_create(ps, AF_INET, type, 0));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
203 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
204
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
205 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
206 * Tries to connect to remote address (address, port)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
207 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
208 const char *inet_tryconnect(p_socket ps, const char *address,
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
209 unsigned short port, p_timeout tm)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
210 {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
211 struct sockaddr_in remote;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
212 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
213 memset(&remote, 0, sizeof(remote));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
214 remote.sin_family = AF_INET;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
215 remote.sin_port = htons(port);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
216 if (strcmp(address, "*")) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
217 if (!inet_aton(address, &remote.sin_addr)) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
218 struct hostent *hp = NULL;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
219 struct in_addr **addr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
220 err = socket_gethostbyname(address, &hp);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
221 if (err != IO_DONE) return socket_hoststrerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
222 addr = (struct in_addr **) hp->h_addr_list;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
223 memcpy(&remote.sin_addr, *addr, sizeof(struct in_addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
224 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
225 } else remote.sin_family = AF_UNSPEC;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
226 err = socket_connect(ps, (SA *) &remote, sizeof(remote), tm);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
227 return socket_strerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
228 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
229
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
230 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
231 * Tries to bind socket to (address, port)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
232 \*-------------------------------------------------------------------------*/
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
233 const char *inet_trybind(p_socket ps, const char *address, unsigned short port)
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
234 {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
235 struct sockaddr_in local;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
236 int err;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
237 memset(&local, 0, sizeof(local));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
238 /* address is either wildcard or a valid ip address */
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
239 local.sin_addr.s_addr = htonl(INADDR_ANY);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
240 local.sin_port = htons(port);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
241 local.sin_family = AF_INET;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
242 if (strcmp(address, "*") && !inet_aton(address, &local.sin_addr)) {
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
243 struct hostent *hp = NULL;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
244 struct in_addr **addr;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
245 err = socket_gethostbyname(address, &hp);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
246 if (err != IO_DONE) return socket_hoststrerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
247 addr = (struct in_addr **) hp->h_addr_list;
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
248 memcpy(&local.sin_addr, *addr, sizeof(struct in_addr));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
249 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
250 err = socket_bind(ps, (SA *) &local, sizeof(local));
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
251 if (err != IO_DONE) socket_destroy(ps);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
252 return socket_strerror(err);
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
253 }
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
254
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
255 /*-------------------------------------------------------------------------*\
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
256 * Some systems do not provide this so that we provide our own. It's not
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
diff changeset
257 * marvelously fast, but it works just fine.
4b915342e2a8 LuaSocket 2.0.2 + CMake build description.
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258 \*-------------------------------------------------------------------------*/
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259 #ifdef INET_ATON
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260 int inet_aton(const char *cp, struct in_addr *inp)
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261 {
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262 unsigned int a = 0, b = 0, c = 0, d = 0;
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263 int n = 0, r;
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264 unsigned long int addr = 0;
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265 r = sscanf(cp, "%u.%u.%u.%u%n", &a, &b, &c, &d, &n);
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266 if (r == 0 || n == 0) return 0;
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267 cp += n;
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268 if (*cp) return 0;
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269 if (a > 255 || b > 255 || c > 255 || d > 255) return 0;
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270 if (inp) {
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271 addr += a; addr <<= 8;
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272 addr += b; addr <<= 8;
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273 addr += c; addr <<= 8;
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274 addr += d;
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275 inp->s_addr = htonl(addr);
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276 }
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277 return 1;
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278 }
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279 #endif
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280
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281