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sbase/basename.c
Mattias Andrée 1d885159f2 basename: support --
POSIX-2017 clarifies that -- and normal option parsing must be supported.
See EXAMPLES in basename(1p).

Signed-off-by: Mattias Andrée <maandree@kth.se>
2018-07-07 12:16:11 +01:00

38 lines
549 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 fshut(stdout, "<stdout>");
}