log: Fix timestamps being printed incorrectly when running in foreground

Due to usage of wrong function (get_tick_count) the timestamps have
been printed incorrectly based on clock_gettime. This commit fixes it by
using gettimeofday correctly and also makes sure that this is thread-safe
by using localtime_r if available.
Furthermore, this commit will also have the effect that when logging
through syslog we don't determine the current time anymore because the
timestamp is not even used.

1 files changed, 11 insertions, 5 deletions

diff --git a/src/log.c b/src/log.c
index 46839ee..cd7c2d5 100644
--- a/src/log.c
+++ b/src/log.c
@@ -65,20 +65,26 @@ void usbmuxd_log(enum loglevel level, const char *fmt, ...)
 {
 	va_list ap;
 	char *fs;
-	struct timeval ts;
-	struct tm *tp;
 
 	if(level > log_level)
 		return;
 
-	get_tick_count(&ts);
-	tp = localtime(&ts.tv_sec);
-
 	fs = malloc(20 + strlen(fmt));
 
 	if(log_syslog) {
 		sprintf(fs, "[%d] %s\n", level, fmt);
 	} else {
+		struct timeval ts;
+		struct tm tp_;
+		struct tm *tp;
+
+		gettimeofday(&ts, NULL);
+#ifdef HAVE_LOCALTIME_R
+		tp = localtime_r(&ts.tv_sec, &tp_);
+#else
+		tp = localtime(&ts.tv_sec);
+#endif
+
 		strftime(fs, 10, "[%H:%M:%S", tp);
 		sprintf(fs+9, ".%03d][%d] %s\n", (int)(ts.tv_usec / 1000), level, fmt);
 	}