[PATCH v1] compositor-x11: fix title overflow in x11_backend_create_output
Benoit Gschwind
gschwind at gnu-log.net
Sat Jun 4 14:08:51 UTC 2016
---
src/compositor-x11.c | 29 ++++++++++++++++++++---------
1 file changed, 20 insertions(+), 9 deletions(-)
diff --git a/src/compositor-x11.c b/src/compositor-x11.c
index 629b5f3..a518820 100644
--- a/src/compositor-x11.c
+++ b/src/compositor-x11.c
@@ -782,7 +782,7 @@ x11_backend_create_output(struct x11_backend *b, int x, int y,
{
static const char name[] = "Weston Compositor";
static const char class[] = "weston-1\0Weston Compositor";
- char title[32];
+ char * title = NULL;
struct x11_output *output;
xcb_screen_t *screen;
struct wm_normal_hints normal_hints;
@@ -800,11 +800,6 @@ x11_backend_create_output(struct x11_backend *b, int x, int y,
output_width = width * scale;
output_height = height * scale;
- if (configured_name)
- sprintf(title, "%s - %s", name, configured_name);
- else
- strcpy(title, name);
-
if (!no_input)
values[0] |=
XCB_EVENT_MASK_KEY_PRESS |
@@ -871,9 +866,25 @@ x11_backend_create_output(struct x11_backend *b, int x, int y,
}
/* Set window name. Don't bother with non-EWMH WMs. */
- xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window,
- b->atom.net_wm_name, b->atom.utf8_string, 8,
- strlen(title), title);
+ if (configured_name) {
+ ret = asprintf(&title, "%s - %s", name, configured_name);
+ /* following asprintf manual, title is undefined on failure,
+ * thus force NULL */
+ if (ret < 0)
+ title = NULL;
+ } else {
+ title = strdup(name);
+ }
+
+ if(title) {
+ xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window,
+ b->atom.net_wm_name, b->atom.utf8_string, 8,
+ strlen(title), title);
+ free(title);
+ } else {
+ return NULL;
+ }
+
xcb_change_property(b->conn, XCB_PROP_MODE_REPLACE, output->window,
b->atom.wm_class, b->atom.string, 8,
sizeof class, class);
--
2.7.3
More information about the wayland-devel
mailing list