1 //
2 // posix_utilities.c
3 // mDNSResponder
4 //
5 // Copyright (c) 2019 Apple Inc. All rights reserved.
6 //
7
8 #include "posix_utilities.h"
9 #include "mDNSEmbeddedAPI.h"
10 #include <stdlib.h> // for NULL
11 #include <stdio.h> // for snprintf
12 #include <time.h>
13 #include <sys/time.h> // for gettimeofday
14
getLocalTimestamp(char * const buffer,mDNSu32 buffer_len)15 mDNSexport void getLocalTimestamp(char * const buffer, mDNSu32 buffer_len)
16 {
17 struct timeval now;
18 struct tm local_time;
19 char date_time_str[32];
20 char time_zone_str[32];
21
22 gettimeofday(&now, NULL);
23 localtime_r(&now.tv_sec, &local_time);
24
25 strftime(date_time_str, sizeof(date_time_str), "%F %T", &local_time);
26 strftime(time_zone_str, sizeof(time_zone_str), "%z", &local_time);
27 snprintf(buffer, buffer_len, "%s.%06lu%s", date_time_str, (unsigned long)now.tv_usec, time_zone_str);
28 }
29