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Fix possible CGame network buffer overflow

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Zack Middleton 2024-05-15 19:30:29 -05:00 committed by Tim Angus
parent 84715f421b
commit 797168fa08
1 changed files with 16 additions and 6 deletions
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22
code/cgame/cg_servercmds.c
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@ -241,26 +241,36 @@ void CG_ShaderStateChanged(void) {
char timeOffset[16];
const char *o;
char *n,*t;
int length;
o = CG_ConfigString( CS_SHADERSTATE );
while (o && *o) {
n = strstr(o, "=");
if (n && *n) {
strncpy(originalShader, o, n-o);
originalShader[n-o] = 0;
length = n-o+1;
if (length > sizeof(originalShader)) {
length = sizeof(originalShader);
}
Q_strncpyz(originalShader, o, length);
n++;
t = strstr(n, ":");
if (t && *t) {
strncpy(newShader, n, t-n);
newShader[t-n] = 0;
length = t-n+1;
if (length > sizeof(newShader)) {
length = sizeof(newShader);
}
Q_strncpyz(newShader, n, length);
} else {
break;
}
t++;
o = strstr(t, "@");
if (o) {
strncpy(timeOffset, t, o-t);
timeOffset[o-t] = 0;
length = o-t+1;
if (length > sizeof(timeOffset)) {
length = sizeof(timeOffset);
}
Q_strncpyz(timeOffset, t, length);
o++;
trap_R_RemapShader( originalShader, newShader, timeOffset );
}