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/**
* timeprefix – Prefix each line with the time it as written
*
* Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include <time.h>
#include <stddef.h>
#include <stdlib.h>
static struct tm* utctime;
static void printline(const char* line)
{
struct timespec boottime;
time_t realtime;
clock_gettime(CLOCK_BOOTTIME, &boottime);
realtime = time(NULL);
gmtime_r(&realtime, utctime);
printf("[%010lu.%04lu %i-%02i-%02i %02i:%02i:%02i UTC] %s",
boottime.tv_sec, boottime.tv_nsec / 100000,
utctime->tm_year + 1900, utctime->tm_mon + 1, utctime->tm_mday,
utctime->tm_hour, utctime->tm_min, utctime->tm_sec,
line);
fflush(stdout);
}
int main(int argc, char** argv)
{
size_t buf_size = 512;
char* buf = NULL;
utctime = malloc(sizeof(struct tm));
printline("--- Program started ---\n");
buf = malloc(buf_size * sizeof(char));;
while (getline(&buf, &buf_size, stdin) != -1)
printline(buf);
printline("--- Program exited ---\n");
free(buf);
return 0;
}
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