Mercurial > sdl-ios-xcode
annotate docs/html/sdlcdtrack.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_CDtrack</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="CD-ROM" | |
| 14 HREF="cdrom.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_CD" | |
| 17 HREF="sdlcd.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="Multi-threaded Programming" | |
| 20 HREF="thread.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 | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="sdlcd.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="thread.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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="SDLCDTRACK" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
74 ></A |
|
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
75 >SDL_CDtrack</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
79 NAME="AEN7628" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_CDtrack -- CD Track Information Structure</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSECT1" | |
| 86 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
87 NAME="AEN7631" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Structure Definition</H2 | |
| 91 ><PRE | |
| 92 CLASS="PROGRAMLISTING" | |
| 93 >typedef struct{ | |
| 94 Uint8 id; | |
| 95 Uint8 type; | |
| 96 Uint32 length; | |
| 97 Uint32 offset; | |
| 98 } SDL_CDtrack;</PRE | |
| 99 ></DIV | |
| 100 ><DIV | |
| 101 CLASS="REFSECT1" | |
| 102 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
103 NAME="AEN7634" |
| 0 | 104 ></A |
| 105 ><H2 | |
| 106 >Structure Data</H2 | |
| 107 ><DIV | |
| 108 CLASS="INFORMALTABLE" | |
| 109 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
110 NAME="AEN7636" |
| 0 | 111 ></A |
| 112 ><P | |
| 113 ></P | |
| 114 ><TABLE | |
| 115 BORDER="0" | |
| 116 CLASS="CALSTABLE" | |
| 117 ><TBODY | |
| 118 ><TR | |
| 119 ><TD | |
| 120 ALIGN="LEFT" | |
| 121 VALIGN="TOP" | |
| 122 ><TT | |
| 123 CLASS="STRUCTFIELD" | |
| 124 ><I | |
| 125 >id</I | |
| 126 ></TT | |
| 127 ></TD | |
| 128 ><TD | |
| 129 ALIGN="LEFT" | |
| 130 VALIGN="TOP" | |
| 131 >Track number (0-99)</TD | |
| 132 ></TR | |
| 133 ><TR | |
| 134 ><TD | |
| 135 ALIGN="LEFT" | |
| 136 VALIGN="TOP" | |
| 137 ><TT | |
| 138 CLASS="STRUCTFIELD" | |
| 139 ><I | |
| 140 >type</I | |
| 141 ></TT | |
| 142 ></TD | |
| 143 ><TD | |
| 144 ALIGN="LEFT" | |
| 145 VALIGN="TOP" | |
| 146 ><TT | |
| 147 CLASS="LITERAL" | |
| 148 >SDL_AUDIO_TRACK</TT | |
| 149 > or <TT | |
| 150 CLASS="LITERAL" | |
| 151 >SDL_DATA_TRACK</TT | |
| 152 ></TD | |
| 153 ></TR | |
| 154 ><TR | |
| 155 ><TD | |
| 156 ALIGN="LEFT" | |
| 157 VALIGN="TOP" | |
| 158 ><TT | |
| 159 CLASS="STRUCTFIELD" | |
| 160 ><I | |
| 161 >length</I | |
| 162 ></TT | |
| 163 ></TD | |
| 164 ><TD | |
| 165 ALIGN="LEFT" | |
| 166 VALIGN="TOP" | |
| 167 >Length, in frames, of this track</TD | |
| 168 ></TR | |
| 169 ><TR | |
| 170 ><TD | |
| 171 ALIGN="LEFT" | |
| 172 VALIGN="TOP" | |
| 173 ><TT | |
| 174 CLASS="STRUCTFIELD" | |
| 175 ><I | |
| 176 >offset</I | |
| 177 ></TT | |
| 178 ></TD | |
| 179 ><TD | |
| 180 ALIGN="LEFT" | |
| 181 VALIGN="TOP" | |
| 182 >Frame offset to the beginning of this track</TD | |
| 183 ></TR | |
| 184 ></TBODY | |
| 185 ></TABLE | |
| 186 ><P | |
| 187 ></P | |
| 188 ></DIV | |
| 189 ></DIV | |
| 190 ><DIV | |
| 191 CLASS="REFSECT1" | |
| 192 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
193 NAME="AEN7657" |
| 0 | 194 ></A |
| 195 ><H2 | |
| 196 >Description</H2 | |
| 197 ><P | |
| 198 ><SPAN | |
| 199 CLASS="STRUCTNAME" | |
| 200 >SDL_CDtrack</SPAN | |
| 201 > stores data on each track on a CD, its fields should be pretty self explainatory. It is a member a the <A | |
| 202 HREF="sdlcd.html" | |
| 203 ><SPAN | |
| 204 CLASS="STRUCTNAME" | |
| 205 >SDL_CD</SPAN | |
| 206 ></A | |
| 207 > structure.</P | |
| 208 ><DIV | |
| 209 CLASS="NOTE" | |
| 210 ><BLOCKQUOTE | |
| 211 CLASS="NOTE" | |
| 212 ><P | |
| 213 ><B | |
| 214 >Note: </B | |
| 215 >Frames can be converted to standard timings. There are <TT | |
| 216 CLASS="LITERAL" | |
| 217 >CD_FPS</TT | |
| 218 > frames per second, so <SPAN | |
| 219 CLASS="STRUCTNAME" | |
| 220 >SDL_CDtrack</SPAN | |
| 221 >.<TT | |
| 222 CLASS="STRUCTFIELD" | |
| 223 ><I | |
| 224 >length</I | |
| 225 ></TT | |
| 226 >/<TT | |
| 227 CLASS="LITERAL" | |
| 228 >CD_FPS</TT | |
| 229 >=length_in_seconds.</P | |
| 230 ></BLOCKQUOTE | |
| 231 ></DIV | |
| 232 ></DIV | |
| 233 ><DIV | |
| 234 CLASS="REFSECT1" | |
| 235 ><A | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
236 NAME="AEN7669" |
| 0 | 237 ></A |
| 238 ><H2 | |
| 239 >See Also</H2 | |
| 240 ><P | |
| 241 ><A | |
| 242 HREF="sdlcd.html" | |
| 243 ><SPAN | |
| 244 CLASS="STRUCTNAME" | |
| 245 >SDL_CD</SPAN | |
| 246 ></A | |
| 247 ></P | |
| 248 ></DIV | |
| 249 ><DIV | |
| 250 CLASS="NAVFOOTER" | |
| 251 ><HR | |
| 252 ALIGN="LEFT" | |
| 253 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
254 SUMMARY="Footer navigation table" |
| 0 | 255 WIDTH="100%" |
| 256 BORDER="0" | |
| 257 CELLPADDING="0" | |
| 258 CELLSPACING="0" | |
| 259 ><TR | |
| 260 ><TD | |
| 261 WIDTH="33%" | |
| 262 ALIGN="left" | |
| 263 VALIGN="top" | |
| 264 ><A | |
| 265 HREF="sdlcd.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
266 ACCESSKEY="P" |
| 0 | 267 >Prev</A |
| 268 ></TD | |
| 269 ><TD | |
| 270 WIDTH="34%" | |
| 271 ALIGN="center" | |
| 272 VALIGN="top" | |
| 273 ><A | |
| 274 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
275 ACCESSKEY="H" |
| 0 | 276 >Home</A |
| 277 ></TD | |
| 278 ><TD | |
| 279 WIDTH="33%" | |
| 280 ALIGN="right" | |
| 281 VALIGN="top" | |
| 282 ><A | |
| 283 HREF="thread.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
284 ACCESSKEY="N" |
| 0 | 285 >Next</A |
| 286 ></TD | |
| 287 ></TR | |
| 288 ><TR | |
| 289 ><TD | |
| 290 WIDTH="33%" | |
| 291 ALIGN="left" | |
| 292 VALIGN="top" | |
| 293 >SDL_CD</TD | |
| 294 ><TD | |
| 295 WIDTH="34%" | |
| 296 ALIGN="center" | |
| 297 VALIGN="top" | |
| 298 ><A | |
| 299 HREF="cdrom.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
300 ACCESSKEY="U" |
| 0 | 301 >Up</A |
| 302 ></TD | |
| 303 ><TD | |
| 304 WIDTH="33%" | |
| 305 ALIGN="right" | |
| 306 VALIGN="top" | |
| 307 >Multi-threaded Programming</TD | |
| 308 ></TR | |
| 309 ></TABLE | |
| 310 ></DIV | |
| 311 ></BODY | |
| 312 ></HTML | |
| 313 > |