diff options
| author | Jason Nader <jason.nader@protonmail.com> | 2020-03-15 17:51:10 +0900 |
|---|---|---|
| committer | Drew DeVault <sir@cmpwn.com> | 2020-03-16 14:27:36 +0100 |
| commit | fcd524bb0d6f3c6cd4f2ddc180520bc56a89aa4a (patch) | |
| tree | 5458da9cac517c6b97d46343990ae842d387301d | |
| parent | 6498542b24d9699f0b0428ba5ac3e9a8b30b7feb (diff) | |
sway/input/cursor.c: fix undefined behaviour when event is NULL
| -rw-r--r-- | sway/input/cursor.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sway/input/cursor.c b/sway/input/cursor.c index e41acd8b..3a4a69b6 100644 --- a/sway/input/cursor.c +++ b/sway/input/cursor.c @@ -1059,11 +1059,11 @@ uint32_t get_mouse_bindcode(const char *name, char **error) { const char *event = libevdev_event_code_get_name(EV_KEY, code); if (!event || strncmp(event, "BTN_", strlen("BTN_")) != 0) { size_t len = snprintf(NULL, 0, "Event code %d (%s) is not a button", - code, event) + 1; + code, event ? event : "(null)") + 1; *error = malloc(len); if (*error) { snprintf(*error, len, "Event code %d (%s) is not a button", - code, event); + code, event ? event : "(null)"); } return 0; } |