sbase/touch.c
2011-05-23 19:00:31 +01:00

58 lines
1.0 KiB
C

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include <utime.h>
#include <sys/stat.h>
#include "util.h"
static void touch(const char *);
static bool cflag = false;
static time_t t;
int
main(int argc, char *argv[])
{
int i;
t = time(NULL);
for(i = 1; i < argc; i++)
if(!strcmp(argv[i], "-c"))
cflag = true;
else if(!strcmp(argv[i], "-t") && i+1 < argc)
t = strtol(argv[++i], NULL, 0);
else
break;
for(; i < argc; i++)
touch(argv[i]);
return EXIT_SUCCESS;
}
void
touch(const char *str)
{
int fd;
struct stat st;
struct utimbuf ut;
if(stat(str, &st) < 0) {
if(errno != ENOENT)
eprintf("stat %s:", str);
if(cflag)
return;
if((fd = creat(str, O_RDONLY|S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) < 0)
eprintf("creat %s:", str);
close(fd);
}
ut.actime = st.st_atime;
ut.modtime = t;
if(utime(str, &ut) < 0)
eprintf("utime %s:", str);
}