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authorVinson Lee <vlee@vmware.com>2010-01-06 18:18:49 -0800
committerVinson Lee <vlee@vmware.com>2010-01-06 18:19:46 -0800
commit45ac10fe6a9c01aec9b7245f9a5621402842f466 (patch)
treedd7ace576b2124ac584336b582e7e68d3ccc8091 /progs
parent25ffd7627828d5a6d1858e0fd5f2a4b796c72be8 (diff)
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progs/xdemos: Check for string overflow.
Diffstat (limited to 'progs')
-rw-r--r--progs/xdemos/manywin.c32
1 files changed, 29 insertions, 3 deletions
diff --git a/progs/xdemos/manywin.c b/progs/xdemos/manywin.c
index ee357f3..3b0810b 100644
--- a/progs/xdemos/manywin.c
+++ b/progs/xdemos/manywin.c
@@ -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];
}