Mercurial > sdl-ios-xcode
annotate docs/html/guidethebasics.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 >The Basics</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="SDL Guide" | |
| 14 HREF="guide.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="Credits" | |
| 17 HREF="guidecredits.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="Initializing SDL" | |
| 20 HREF="guidebasicsinit.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="CHAPTER" | |
| 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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parents:
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diff
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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="guidecredits.html" | |
|
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Updated SDL HTML documentation
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parents:
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diff
changeset
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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="guidebasicsinit.html" | |
|
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parents:
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diff
changeset
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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 ><DIV | |
| 72 CLASS="CHAPTER" | |
| 73 ><H1 | |
| 74 ><A | |
| 75 NAME="GUIDETHEBASICS" | |
|
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355632dca928
Updated SDL HTML documentation
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parents:
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diff
changeset
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76 ></A |
|
355632dca928
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parents:
55
diff
changeset
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77 >Chapter 1. The Basics</H1 |
| 0 | 78 ><DIV |
| 79 CLASS="TOC" | |
| 80 ><DL | |
| 81 ><DT | |
| 82 ><B | |
| 83 >Table of Contents</B | |
| 84 ></DT | |
| 85 ><DT | |
| 86 ><A | |
| 87 HREF="guidethebasics.html#GUIDEINTRODUCTION" | |
| 88 >Introduction</A | |
| 89 ></DT | |
| 90 ><DT | |
| 91 ><A | |
| 92 HREF="guidebasicsinit.html" | |
| 93 >Initializing SDL</A | |
| 94 ></DT | |
| 95 ></DL | |
| 96 ></DIV | |
| 97 ><DIV | |
| 98 CLASS="SECT1" | |
| 99 ><H1 | |
| 100 CLASS="SECT1" | |
| 101 ><A | |
| 102 NAME="GUIDEINTRODUCTION" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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103 ></A |
|
355632dca928
Updated SDL HTML documentation
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parents:
55
diff
changeset
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104 >Introduction</H1 |
| 0 | 105 ><P |
| 106 >The SDL Guide section is pretty incomplete. If you feel you have anything to add mail akawaka@skynet.ie or visit http://akawaka.csn.ul.ie/tne/.</P | |
| 107 ></DIV | |
| 108 ></DIV | |
| 109 ><DIV | |
| 110 CLASS="NAVFOOTER" | |
| 111 ><HR | |
| 112 ALIGN="LEFT" | |
| 113 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
114 SUMMARY="Footer navigation table" |
| 0 | 115 WIDTH="100%" |
| 116 BORDER="0" | |
| 117 CELLPADDING="0" | |
| 118 CELLSPACING="0" | |
| 119 ><TR | |
| 120 ><TD | |
| 121 WIDTH="33%" | |
| 122 ALIGN="left" | |
| 123 VALIGN="top" | |
| 124 ><A | |
| 125 HREF="guidecredits.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
126 ACCESSKEY="P" |
| 0 | 127 >Prev</A |
| 128 ></TD | |
| 129 ><TD | |
| 130 WIDTH="34%" | |
| 131 ALIGN="center" | |
| 132 VALIGN="top" | |
| 133 ><A | |
| 134 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
135 ACCESSKEY="H" |
| 0 | 136 >Home</A |
| 137 ></TD | |
| 138 ><TD | |
| 139 WIDTH="33%" | |
| 140 ALIGN="right" | |
| 141 VALIGN="top" | |
| 142 ><A | |
| 143 HREF="guidebasicsinit.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
144 ACCESSKEY="N" |
| 0 | 145 >Next</A |
| 146 ></TD | |
| 147 ></TR | |
| 148 ><TR | |
| 149 ><TD | |
| 150 WIDTH="33%" | |
| 151 ALIGN="left" | |
| 152 VALIGN="top" | |
| 153 >Credits</TD | |
| 154 ><TD | |
| 155 WIDTH="34%" | |
| 156 ALIGN="center" | |
| 157 VALIGN="top" | |
| 158 ><A | |
| 159 HREF="guide.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
160 ACCESSKEY="U" |
| 0 | 161 >Up</A |
| 162 ></TD | |
| 163 ><TD | |
| 164 WIDTH="33%" | |
| 165 ALIGN="right" | |
| 166 VALIGN="top" | |
| 167 >Initializing SDL</TD | |
| 168 ></TR | |
| 169 ></TABLE | |
| 170 ></DIV | |
| 171 ></BODY | |
| 172 ></HTML | |
| 173 > |