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Prevent g_sounds[] buffer overflow when attempting to define a sound with an index higher than MAXSOUNDS-1. This reduces the number of sound definitions available by 1 as the last slot is now reserved for the error condition.

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git-svn-id: https://svn.eduke32.com/eduke32@7063 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2018-10-10 19:15:22 +00:00
parent 6248cc9cee
commit cc6e458d00
1 changed files with 3 additions and 2 deletions
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5
source/duke3d/src/gamedef.cpp
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@ -6080,8 +6080,9 @@ repeatcase:
k = *(g_scriptPtr-1); k = *(g_scriptPtr-1);
if (EDUKE32_PREDICT_FALSE((unsigned)k >= MAXSOUNDS-1)) if (EDUKE32_PREDICT_FALSE((unsigned)k >= MAXSOUNDS-1))
{ {
initprintf("%s:%d: error: exceeded sound limit of %d.\n",g_scriptFileName,g_lineNumber,MAXSOUNDS); initprintf("%s:%d: error: sound index exceeds limit of %d.\n",g_scriptFileName,g_lineNumber, MAXSOUNDS-1);
g_errorCnt++; g_errorCnt++;
k = MAXSOUNDS-1;
} }
g_scriptPtr--; g_scriptPtr--;
i = 0; i = 0;
@ -6140,7 +6141,7 @@ repeatcase:
if (k > g_highestSoundIdx) if (k > g_highestSoundIdx)
g_highestSoundIdx = k; g_highestSoundIdx = k;
if (k >= 0 && k < MAXSOUNDS && g_dynamicSoundMapping && j >= 0 && (labeltype[j] & LABEL_DEFINE)) if (k >= 0 && k < MAXSOUNDS-1 && g_dynamicSoundMapping && j >= 0 && (labeltype[j] & LABEL_DEFINE))
G_ProcessDynamicSoundMapping(label+(j<<6),k); G_ProcessDynamicSoundMapping(label+(j<<6),k);
continue; continue;