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Fix error in aiString documentation. MAXLEN includes the terminal NULL. This is unusual, but true. 

Fix overflow vulnerability in SceneCombiner. Thanks to Krishty to point it out.

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@683 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
pull/1/head
aramis_acg 2010-04-14 21:45:00 +00:00
parent 6a2a542986
commit 685d2b83c5
2 changed files with 8 additions and 1 deletions
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6
code/SceneCombiner.cpp
View File

@ -62,6 +62,12 @@ inline void PrefixString(aiString& string,const char* prefix, unsigned int len)
if (string.length >= 1 && string.data[0] == '$')
return;
if (len+string.length>=MAXLEN-1) {
DefaultLogger::get()->debug("Can't add an unique prefix because the string is too long");
ai_assert(false);
return;
}
// Add the prefix
::memmove(string.data+len,string.data,string.length+1);
::memcpy (string.data, prefix, len);

3
include/aiTypes.h
View File

@ -230,7 +230,8 @@ struct aiColor3D
* UTF-8 strings to their working character set (i.e. MBCS, WideChar).
*
* We use this representation instead of std::string to be C-compatible. The
* (binary) length of such a string is limited to MAXLEN characters (excluding the 0).
* (binary) length of such a string is limited to MAXLEN characters (including the
* the terminating zero).
*/
struct aiString
{