sbase/ln.c

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C
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/* See LICENSE file for copyright and license details. */
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#include <errno.h>
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#include <libgen.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
#include <string.h>
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#include <unistd.h>
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#include "util.h"
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static void
usage(void)
{
eprintf("usage: %s [-fs] target [linkname]\n", argv0);
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}
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int
main(int argc, char *argv[])
{
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int (*flink)(const char *, const char *);
char *fname, *to;
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bool sflag = false;
bool fflag = false;
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ARGBEGIN {
case 'f':
fflag = true;
break;
case 's':
sflag = true;
break;
default:
usage();
} ARGEND;
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if (argc == 0 || argc > 2)
usage();
if (sflag) {
flink = symlink;
fname = "symlink";
} else {
flink = link;
fname = "link";
}
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to = argc < 2 ? basename(argv[0]) : argv[1];
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if (fflag == true)
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remove(to);
if (flink(argv[0], to) < 0)
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eprintf("%s %s <- %s:", fname, argv[0], to);
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return 0;
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}