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/* See LICENSE file for copyright and license details. */
#ifdef __linux__
# include <sys/timex.h>
# define HAVE_ADJTIMEX
#endif
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#ifndef CLOCK_MONOTONIC_RAW
# define CLOCK_MONOTONIC_RAW CLOCK_MONOTONIC
#endif
#ifndef CLOCK_BOOTTIME
# define CLOCK_BOOTTIME CLOCK_MONOTONIC_RAW
#endif
static void
printline(const char *line)
{
#ifdef HAVE_ADJTIMEX
static struct timex timex; /* static to zero initialise it */
int r;
#else
struct timespec walltime;
#endif
struct timespec boottime;
struct tm *utctime;
clock_gettime(CLOCK_BOOTTIME, &boottime);
#ifdef HAVE_ADJTIMEX
r = adjtimex(&timex);
if (timex.time.tv_sec % (24 * 60 * 60) == 0) {
if (r == TIME_INS) {
timex.time.tv_sec -= 1;
utctime = gmtime(&timex.time.tv_sec);
utctime->tm_sec += 1;
} else if (r == TIME_DEL) {
timex.time.tv_sec += 1;
utctime = gmtime(&timex.time.tv_sec);
} else {
utctime = gmtime(&timex.time.tv_sec);
}
} else if (r == TIME_OOP) {
utctime = gmtime(&timex.time.tv_sec);
utctime->tm_sec += 1;
} else {
utctime = gmtime(&timex.time.tv_sec);
}
#else
clock_gettime(CLOCK_REALTIME, &walltime);
utctime = gmtime(&walltime.tv_sec);
#endif
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[])
{
char *buf = NULL;
size_t siz = 0;
if (argc > 1 && argv[1][0] == '-' && argv[1][1] == '-' && !argv[1][2])
argc -= 1;
if (argc > 1) {
fprintf(stderr, "usage: %s\n", argv[0]);
return 1;
}
printline("--- Program started ---\n");
while (getline(&buf, &siz, stdin) != -1)
printline(buf);
printline("--- Program exited ---\n");
free(buf);
return 0;
}
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