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| 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 | Document input selector precedence (diff) | |
| download | sway-fcd524bb0d6f3c6cd4f2ddc180520bc56a89aa4a.tar.gz sway-fcd524bb0d6f3c6cd4f2ddc180520bc56a89aa4a.tar.zst sway-fcd524bb0d6f3c6cd4f2ddc180520bc56a89aa4a.zip | |
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) { | |||
| 1059 | const char *event = libevdev_event_code_get_name(EV_KEY, code); | 1059 | const char *event = libevdev_event_code_get_name(EV_KEY, code); |
| 1060 | if (!event || strncmp(event, "BTN_", strlen("BTN_")) != 0) { | 1060 | if (!event || strncmp(event, "BTN_", strlen("BTN_")) != 0) { |
| 1061 | size_t len = snprintf(NULL, 0, "Event code %d (%s) is not a button", | 1061 | size_t len = snprintf(NULL, 0, "Event code %d (%s) is not a button", |
| 1062 | code, event) + 1; | 1062 | code, event ? event : "(null)") + 1; |
| 1063 | *error = malloc(len); | 1063 | *error = malloc(len); |
| 1064 | if (*error) { | 1064 | if (*error) { |
| 1065 | snprintf(*error, len, "Event code %d (%s) is not a button", | 1065 | snprintf(*error, len, "Event code %d (%s) is not a button", |
| 1066 | code, event); | 1066 | code, event ? event : "(null)"); |
| 1067 | } | 1067 | } |
| 1068 | return 0; | 1068 | return 0; |
| 1069 | } | 1069 | } |