busybox/debianutils/which.c

/* vi: set sw=4 ts=4: */
/*
 * Which implementation for busybox
 *
 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
 * Copyright (C) 2006 Gabriel Somlo <somlo at cmu.edu>
 *
 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
 *
 * Based on which from debianutils
 */

#include "busybox.h"

int which_main(int argc, char **argv)
{
	int status = EXIT_SUCCESS;
	char *p;

	if (argc <= 1 || argv[1][0] == '-') {
		bb_show_usage();
	}

	while (--argc > 0) {
		argv++;
		if (strchr(*argv, '/')) {
			if (execable_file(*argv)) {
				puts(*argv);
				continue;
			}
		} else {
			p = find_execable(*argv);
			if (p) {
				puts(p);
				free(p);
				continue;
			}
		}
		status = EXIT_FAILURE;
	}

	fflush_stdout_and_exit(status);
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* Which implementation for busybox
4	*
5	* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
6	* Copyright (C) 2006 Gabriel Somlo <somlo at cmu.edu>
7	*
8	* Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
9	*
10	* Based on which from debianutils
11	*/
12
13	#include "busybox.h"
14
15	int which_main(int argc, char **argv)
16	{
17	int status = EXIT_SUCCESS;
18	char *p;
19
20	if (argc <= 1 \|\| argv[1][0] == '-') {
21	bb_show_usage();
22	}
23
24	while (--argc > 0) {
25	argv++;
26	if (strchr(*argv, '/')) {
27	if (execable_file(*argv)) {
28	puts(*argv);
29	continue;
30	}
31	} else {
32	p = find_execable(*argv);
33	if (p) {
34	puts(p);
35	free(p);
36	continue;
37	}
38	}
39	status = EXIT_FAILURE;
40	}
41
42	fflush_stdout_and_exit(status);
43	}