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util/log: fix buffer overflow

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This commit is contained in:
Evyatar Stalinsky 2023-06-29 15:58:56 +03:00
parent c68c9f1685
commit 21e96c459d
1 changed files with 3 additions and 2 deletions
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5
util/log.c
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@ -72,8 +72,9 @@ static wlr_log_func_t log_callback = log_stderr;
static void log_wl(const char *fmt, va_list args) { static void log_wl(const char *fmt, va_list args) {
static char wlr_fmt[1024]; static char wlr_fmt[1024];
int n = snprintf(wlr_fmt, sizeof(wlr_fmt), "[wayland] %s", fmt); int n = snprintf(wlr_fmt, sizeof(wlr_fmt), "[wayland] %s", fmt);
if (n > 0 && wlr_fmt[n - 1] == '\n') { size_t len = strlen(wlr_fmt);
wlr_fmt[n - 1] = '\0'; if (n > 0 && wlr_fmt[len - 1] == '\n') {
wlr_fmt[len - 1] = '\0';
} }
_wlr_vlog(WLR_INFO, wlr_fmt, args); _wlr_vlog(WLR_INFO, wlr_fmt, args);
} }