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#include <unistd.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <signal.h>
#include "../ninitfeatures.h"
#include "../error_table.h"
int main(int argc, char **argv) {
int fd;
unsigned long now, interval, last, ul[2] = { 0, 0 };
char tmp[32],*p;
if (argc<3)
die(1, "usage: sleeprun SleepFile interval [program args...]\n"
"usage: sleeprun -aNumber program [args...]");
errmsg_iam(argv[0]);
p = argv[1];
if (p[0] == '-' && p[1] == 'a') {
scan_ulong(p+2, &interval);
if (interval) alarm(interval);
argv += 2;
goto do_it;
}
if (read_ulongs(argv[1], ul, 2) > 0) {
errno=0;
if (kill(ul[0],0)==0 || errno != ESRCH) {
tmp[fmt_ulong(tmp, ul[0])] = 0;
carp("WARNING: a program with PID ",tmp," is running now");
}
}
last=ul[1];
scan_ulong(argv[2], &interval);
now = (unsigned long)time(0);
last += interval;
if (last > now) {
nano_sleep(last-now, 0);
now = (unsigned long)time(0);
}
if ((fd = open(argv[1], O_WRONLY | O_CREAT | O_TRUNC, 0644)) >=0) {
p = tmp;
p += fmt_ulong(tmp, getpid()); *p++ = ':';
p += fmt_ulong(p, now); *p++ = 0;
write(fd,tmp,p-tmp);
close(fd);
}
argv+=3;
do_it:
if (argv[0]) {
char *argv_0 = argv[0];
argv[0] = argv_0 + str_rchr(argv_0,'/');
if (argv[0][0]) argv[0]++;
else argv[0]=argv_0;
pathexec_run(argv_0,argv,environ);
carp("unable to run: ",argv_0,": ",error_string(table, errno));
return 127;
}
return 0;
}
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