progs/xdemos: Check for string overflow.

2010-01-06 18:08:17 -08:00
parent 468f270f3f
commit 25ffd76278
1 changed files with 4 additions and 0 deletions
@@ -174,6 +174,10 @@ AddWindow(Display *dpy, const char *displayName, int xpos, int ypos,
   {
      static int id = 0;
      struct window *h = &Windows[NumWindows];
+      if (strlen(displayName) + 1 > sizeof(h->DisplayName)) {
+         Error(displayName, "string overflow");
+         return NULL;
+      }
      strcpy(h->DisplayName, displayName);
      h->Dpy = dpy;
      h->Win = win;