sbase/ln.c

54 lines
839 B
C

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "util.h"
static int ln(const char *, const char *);
static bool sflag = false;
static bool fflag = false;
static void
usage(void)
{
eprintf("usage: %s [-fs] target linkname\n", argv0);
}
int
main(int argc, char *argv[])
{
ARGBEGIN {
case 'f':
fflag = true;
break;
case 's':
sflag = true;
break;
default:
usage();
} ARGEND;
enmasse(argc, &argv[0], ln);
return EXIT_SUCCESS;
}
int
ln(const char *s1, const char *s2)
{
int (*flink)(const char *, const char *) = sflag ? symlink : link;
if(flink(s1, s2) == 0)
return 0;
if(fflag && errno == EEXIST) {
if(remove(s2) == -1)
eprintf("remove %s:", s2);
return flink(s1, s2);
}
return -1;
}