sbase/dirname.c
Laslo Hunhold e92a1aef54 Handle { NULL } argv[] properly in manual arg-reduction
Thanks izabera for reporting this!
2017-08-05 23:50:39 +02:00

25 lines
364 B
C

/* See LICENSE file for copyright and license details. */
#include <libgen.h>
#include <stdio.h>
#include "util.h"
static void
usage(void)
{
eprintf("usage: %s path\n", argv0);
}
int
main(int argc, char *argv[])
{
argv0 = *argv, argv0 ? (argc--, argv++) : (void *)0;
if (argc != 1)
usage();
puts(dirname(argv[0]));
return fshut(stdout, "<stdout>");
}