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fixed a potential security flaw

This commit is contained in:
Anselm R. Garbe 2007-05-10 13:47:44 +02:00
parent b6b2f584ec
commit b8bccb4ac5

View File

@ -365,16 +365,18 @@ updatetitle(Client *c) {
XGetWMName(dpy, c->win, &name);
if(!name.nitems)
return;
if(name.encoding == XA_STRING)
strncpy(c->name, (char *)name.value, sizeof c->name);
if(name.encoding == XA_STRING) {
strncpy(c->name, (char *)name.value, sizeof c->name - 1);
}
else {
if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
&& n > 0 && *list)
{
strncpy(c->name, *list, sizeof c->name);
strncpy(c->name, *list, sizeof c->name - 1);
XFreeStringList(list);
}
}
c->name[sizeof c->name - 1] = '\0';
XFree(name.value);
}