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mirror of git://git.suckless.org/sbase synced 2024-12-27 01:12:19 +00:00
sbase/touch.c
FRIGN ec8246bbc6 Un-boolify sbase
It actually makes the binaries smaller, the code easier to read
(gems like "val == true", "val == false" are gone) and actually
predictable in the sense of that we actually know what we're
working with (one bitwise operator was quite adventurous and
should now be fixed).

This is also more consistent with the other suckless projects
around which don't use boolean types.
2014-11-14 10:54:20 +00:00

72 lines
1.1 KiB
C

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include "util.h"
static void touch(const char *);
static int cflag = 0;
static time_t t;
static void
usage(void)
{
eprintf("usage: %s [-c] [-t stamp] file...\n", argv0);
}
int
main(int argc, char *argv[])
{
t = time(NULL);
ARGBEGIN {
case 'c':
cflag = 1;
break;
case 't':
t = estrtol(EARGF(usage()), 0);
break;
default:
usage();
} ARGEND;
if (argc < 1)
usage();
for (; argc > 0; argc--, argv++)
touch(argv[0]);
return 0;
}
static void
touch(const char *str)
{
int fd;
struct stat st;
struct utimbuf ut;
if (stat(str, &st) == 0) {
ut.actime = st.st_atime;
ut.modtime = t;
if (utime(str, &ut) == -1)
eprintf("utime %s:", str);
return;
}
else if (errno != ENOENT)
eprintf("stat %s:", str);
else if (cflag)
return;
if ((fd = open(str, O_CREAT|O_EXCL,
S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) == -1)
eprintf("open %s:", str);
close(fd);
touch(str);
}