int util_asprintf(char **ret, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
int n = util_vasprintf(ret, fmt, ap);
va_end(ap);
return n;
}
/* Implementation of asprintf from GNU/BSD; leverages vasprintf */
int util_asprintf(char **out, const char *fmt, ...)
{
int alloc_size;
va_list ap;
va_start(ap, fmt);
alloc_size = util_vasprintf(out, fmt, ap);
va_end(ap);
return alloc_size;
}
int util_log_vasprintf(char **result, const char *fmt, va_list args)
{
int ret;
struct timeval tv;
struct timezone tz;
struct tm tm_gmt;
if( result )
*result = NULL;
gettimeofday(&tv, &tz);
time_t tt = tv.tv_sec;
gmtime_r(&tt, &tm_gmt);
char timestamp[ sizeof("YYYY-MM-DD HH:MM:SS") ];
strftime(timestamp, sizeof(timestamp), "%Y-%m-%d %H:%M:%S", &tm_gmt);
char *msg = NULL;
if( NULL != fmt )
util_vasprintf(&msg, fmt, args);
#if 1
ret = util_asprintf(result, "%10llu.%06d %s %llu %s",
(unsigned long long)tv.tv_sec, (int) tv.tv_usec, timestamp, (unsigned long long) getpid(),
msg ? msg : "");
#else
int minutes = tm_gmt.tm_hour * 60 + tm_gmt.tm_min - tz.tz_minuteswest;
if( minutes < 0 )
minutes = 24 * 60 - ( -minutes % ( 24 * 60 ) );
if( minutes >= 24*60 )
minutes %= ( 24 * 60 );
ret = util_asprintf(result, "%s.%06dZ %02d:%02d %llu %s",
timestamp, (int)tv.tv_usec, minutes / 60, minutes % 60,
(unsigned long long) getpid(),
msg ? msg : "");
#endif
free(msg);
return ret;
}