sbase/basename.c

38 lines
526 B
C

/* See LICENSE file for copyright and license details. */
#include <libgen.h>
#include <stdio.h>
#include <string.h>
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s path [suffix]\n", argv0);
}
int
main(int argc, char *argv[])
{
ssize_t off;
char *p;
ARGBEGIN {
default:
usage();
} ARGEND;
if (argc != 1 && argc != 2)
usage();
p = basename(argv[0]);
if (argc == 2) {
off = strlen(p) - strlen(argv[1]);
if (off > 0 && !strcmp(p + off, argv[1]))
p[off] = '\0';
}
puts(p);
return 0;
}