Mercurial > sdl-ios-xcode
annotate docs/html/sdlvideodrivername.html @ 4355:9b464226e541 SDL-1.2
Fixed bug #855
Ludwig Nussel 2009-10-18 06:31:52 PDT
an mprotect call was added to fix bug 528. However that results in a buffer
that allows writing and code execution. Ie the no-execute security features of
modern operating systems are defeated this way. Two mprotect calls are needed.
One to make the buffer executable but not writeable when done and another one
to make the buffer writeable again if the content needs to be changed.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 18 Oct 2009 17:31:37 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_VideoDriverName</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Video" | |
| 14 HREF="video.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_GetVideoInfo" | |
| 17 HREF="sdlgetvideoinfo.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_ListModes" | |
| 20 HREF="sdllistmodes.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
|
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31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 35 CELLSPACING="0" | |
| 36 ><TR | |
| 37 ><TH | |
| 38 COLSPAN="3" | |
| 39 ALIGN="center" | |
| 40 >SDL Library Documentation</TH | |
| 41 ></TR | |
| 42 ><TR | |
| 43 ><TD | |
| 44 WIDTH="10%" | |
| 45 ALIGN="left" | |
| 46 VALIGN="bottom" | |
| 47 ><A | |
| 48 HREF="sdlgetvideoinfo.html" | |
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49 ACCESSKEY="P" |
| 0 | 50 >Prev</A |
| 51 ></TD | |
| 52 ><TD | |
| 53 WIDTH="80%" | |
| 54 ALIGN="center" | |
| 55 VALIGN="bottom" | |
| 56 ></TD | |
| 57 ><TD | |
| 58 WIDTH="10%" | |
| 59 ALIGN="right" | |
| 60 VALIGN="bottom" | |
| 61 ><A | |
| 62 HREF="sdllistmodes.html" | |
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63 ACCESSKEY="N" |
| 0 | 64 >Next</A |
| 65 ></TD | |
| 66 ></TR | |
| 67 ></TABLE | |
| 68 ><HR | |
| 69 ALIGN="LEFT" | |
| 70 WIDTH="100%"></DIV | |
| 71 ><H1 | |
| 72 ><A | |
| 73 NAME="SDLVIDEODRIVERNAME" | |
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74 ></A |
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75 >SDL_VideoDriverName</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN1127" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_VideoDriverName -- Obtain the name of the video driver</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN1130" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN1131" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >char *<B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_VideoDriverName</B | |
| 108 ></CODE | |
| 109 >(char *namebuf, int maxlen);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN1137" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 >The buffer pointed to by <TT | |
| 124 CLASS="PARAMETER" | |
| 125 ><I | |
| 126 >namebuf</I | |
| 127 ></TT | |
| 128 > is filled up to a maximum of <TT | |
| 129 CLASS="PARAMETER" | |
| 130 ><I | |
| 131 >maxlen</I | |
| 132 ></TT | |
| 133 > characters (include the NULL terminator) with the name of the initialised video driver. The driver name is a simple one word identifier like "x11" or "windib".</P | |
| 134 ></DIV | |
| 135 ><DIV | |
| 136 CLASS="REFSECT1" | |
| 137 ><A | |
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138 NAME="AEN1142" |
| 0 | 139 ></A |
| 140 ><H2 | |
| 141 >Return Value</H2 | |
| 142 ><P | |
| 143 >Returns <TT | |
| 144 CLASS="LITERAL" | |
| 145 >NULL</TT | |
| 146 > if video has not been initialised with <TT | |
| 147 CLASS="FUNCTION" | |
| 148 >SDL_Init</TT | |
| 149 > or a pointer to <TT | |
| 150 CLASS="PARAMETER" | |
| 151 ><I | |
| 152 >namebuf</I | |
| 153 ></TT | |
| 154 > otherwise.</P | |
| 155 ></DIV | |
| 156 ><DIV | |
| 157 CLASS="REFSECT1" | |
| 158 ><A | |
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159 NAME="AEN1148" |
| 0 | 160 ></A |
| 161 ><H2 | |
| 162 >See Also</H2 | |
| 163 ><P | |
| 164 ><A | |
| 165 HREF="sdlinit.html" | |
| 166 ><TT | |
| 167 CLASS="FUNCTION" | |
| 168 >SDL_Init</TT | |
| 169 ></A | |
| 170 > | |
| 171 <A | |
| 172 HREF="sdlinitsubsystem.html" | |
| 173 ><TT | |
| 174 CLASS="FUNCTION" | |
| 175 >SDL_InitSubSystem</TT | |
| 176 ></A | |
| 177 ></P | |
| 178 ></DIV | |
| 179 ><DIV | |
| 180 CLASS="NAVFOOTER" | |
| 181 ><HR | |
| 182 ALIGN="LEFT" | |
| 183 WIDTH="100%"><TABLE | |
|
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184 SUMMARY="Footer navigation table" |
| 0 | 185 WIDTH="100%" |
| 186 BORDER="0" | |
| 187 CELLPADDING="0" | |
| 188 CELLSPACING="0" | |
| 189 ><TR | |
| 190 ><TD | |
| 191 WIDTH="33%" | |
| 192 ALIGN="left" | |
| 193 VALIGN="top" | |
| 194 ><A | |
| 195 HREF="sdlgetvideoinfo.html" | |
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803
355632dca928
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Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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196 ACCESSKEY="P" |
| 0 | 197 >Prev</A |
| 198 ></TD | |
| 199 ><TD | |
| 200 WIDTH="34%" | |
| 201 ALIGN="center" | |
| 202 VALIGN="top" | |
| 203 ><A | |
| 204 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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205 ACCESSKEY="H" |
| 0 | 206 >Home</A |
| 207 ></TD | |
| 208 ><TD | |
| 209 WIDTH="33%" | |
| 210 ALIGN="right" | |
| 211 VALIGN="top" | |
| 212 ><A | |
| 213 HREF="sdllistmodes.html" | |
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803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
214 ACCESSKEY="N" |
| 0 | 215 >Next</A |
| 216 ></TD | |
| 217 ></TR | |
| 218 ><TR | |
| 219 ><TD | |
| 220 WIDTH="33%" | |
| 221 ALIGN="left" | |
| 222 VALIGN="top" | |
| 223 >SDL_GetVideoInfo</TD | |
| 224 ><TD | |
| 225 WIDTH="34%" | |
| 226 ALIGN="center" | |
| 227 VALIGN="top" | |
| 228 ><A | |
| 229 HREF="video.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
230 ACCESSKEY="U" |
| 0 | 231 >Up</A |
| 232 ></TD | |
| 233 ><TD | |
| 234 WIDTH="33%" | |
| 235 ALIGN="right" | |
| 236 VALIGN="top" | |
| 237 >SDL_ListModes</TD | |
| 238 ></TR | |
| 239 ></TABLE | |
| 240 ></DIV | |
| 241 ></BODY | |
| 242 ></HTML | |
| 243 > |