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Checks for overflows for client max width and height

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This commit is contained in:
Ben Jargowsky 2022-06-28 20:14:23 +02:00
parent 72e0a560d9
commit 7cc6c640e2
1 changed files with 3 additions and 2 deletions
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dwl.c
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@ -4,6 +4,7 @@
#define _POSIX_C_SOURCE 200809L #define _POSIX_C_SOURCE 200809L
#include <getopt.h> #include <getopt.h>
#include <libinput.h> #include <libinput.h>
#include <limits.h>
#include <linux/input-event-codes.h> #include <linux/input-event-codes.h>
#include <signal.h> #include <signal.h>
#include <stdio.h> #include <stdio.h>
@ -386,9 +387,9 @@ applybounds(Client *c, struct wlr_box *bbox)
/* try to set size hints */ /* try to set size hints */
c->geom.width = MAX(min.width + (2 * c->bw), c->geom.width); c->geom.width = MAX(min.width + (2 * c->bw), c->geom.width);
c->geom.height = MAX(min.height + (2 * c->bw), c->geom.height); c->geom.height = MAX(min.height + (2 * c->bw), c->geom.height);
if (max.width > 0) if (max.width > 0 && !(2 * c->bw > INT_MAX - max.width)) // Checks for overflow
c->geom.width = MIN(max.width + (2 * c->bw), c->geom.width); c->geom.width = MIN(max.width + (2 * c->bw), c->geom.width);
if (max.height > 0) if (max.height > 0 && !(2 * c->bw > INT_MAX - max.height)) // Checks for overflow
c->geom.height = MIN(max.height + (2 * c->bw), c->geom.height); c->geom.height = MIN(max.height + (2 * c->bw), c->geom.height);
if (c->geom.x >= bbox->x + bbox->width) if (c->geom.x >= bbox->x + bbox->width)