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progs/xdemos: Check for string overflow.

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This commit is contained in:
Vinson Lee 2010-01-06 18:18:49 -08:00
parent 25ffd76278
commit 45ac10fe6a
1 changed files with 29 additions and 3 deletions
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32
progs/xdemos/manywin.c
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@ -177,14 +177,40 @@ AddHead(const char *displayName, const char *name)
/* save the info for this head */
{
struct head *h = &Heads[NumHeads];
const char * tmp;
if (strlen(name) + 1 > sizeof(h->DisplayName)) {
Error(displayName, "name string overflow");
return NULL;
}
strcpy(h->DisplayName, name);
h->Dpy = dpy;
h->Win = win;
h->Context = ctx;
h->Angle = 0.0;
strcpy(h->Version, (char *) glGetString(GL_VERSION));
strcpy(h->Vendor, (char *) glGetString(GL_VENDOR));
strcpy(h->Renderer, (char *) glGetString(GL_RENDERER));
tmp = (char *) glGetString(GL_VERSION);
if (strlen(tmp) + 1 > sizeof(h->Version)) {
Error(displayName, "GL_VERSION string overflow");
return NULL;
}
strcpy(h->Version, tmp);
tmp = (char *) glGetString(GL_VENDOR);
if (strlen(tmp) + 1 > sizeof(h->Vendor)) {
Error(displayName, "GL_VENDOR string overflow");
return NULL;
}
strcpy(h->Vendor, tmp);
tmp = (char *) glGetString(GL_RENDERER);
if (strlen(tmp) + 1 > sizeof(h->Renderer)) {
Error(displayName, "GL_RENDERER string overflow");
return NULL;
}
strcpy(h->Renderer, tmp);
NumHeads++;
return &Heads[NumHeads-1];
}