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cron/crontab.c
David Oberhollenzer d2b3a983e1 Initial commit
Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
2018-11-23 02:01:21 +01:00

61 lines
1.1 KiB
C

/* SPDX-License-Identifier: ISC */
#include "gcrond.h"
void cron_tm_to_mask(crontab_t *out, struct tm *t)
{
memset(out, 0, sizeof(*out));
out->minute = 1UL << ((unsigned long)t->tm_min);
out->hour = 1 << t->tm_hour;
out->dayofmonth = 1 << (t->tm_mday - 1);
out->month = 1 << t->tm_mon;
out->dayofweek = 1 << t->tm_wday;
}
bool cron_should_run(const crontab_t *t, const crontab_t *mask)
{
if ((t->minute & mask->minute) == 0)
return false;
if ((t->hour & mask->hour) == 0)
return false;
if ((t->dayofmonth & mask->dayofmonth) == 0)
return false;
if ((t->month & mask->month) == 0)
return false;
if ((t->dayofweek & mask->dayofweek) == 0)
return false;
return true;
}
void delcron(crontab_t *cron)
{
if (cron != NULL) {
free(cron->exec);
free(cron);
}
}
int runjob(crontab_t *tab)
{
pid_t pid;
if (tab->exec == NULL)
return 0;
pid = fork();
if (pid == -1) {
perror("fork");
return -1;
}
if (pid != 0)
return 0;
execl("/bin/sh", "sh", "-c", tab->exec, (char *) 0);
perror("runnig shell interpreter");
exit(EXIT_FAILURE);
}