busybox/libbb/get_last_path_component.c

/* vi: set sw=4 ts=4: */
/*
 * bb_get_last_path_component implementation for busybox
 *
 * Copyright (C) 2001  Manuel Novoa III  <mjn3@codepoet.org>
 *
 * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
 */

#include "libbb.h"
/*
 * "/"        -> "/"
 * "abc"      -> "abc"
 * "abc/def"  -> "def"
 * "abc/def/" -> ""
 */
char* FAST_FUNC bb_get_last_path_component_nostrip(const char *path)
{
	char *slash = strrchr(path, '/');

	if (!slash || (slash == path && !slash[1]))
		return (char*)path;

	return slash + 1;
}

/*
 * "/"        -> "/"
 * "abc"      -> "abc"
 * "abc/def"  -> "def"
 * "abc/def/" -> "def" !!
 */
char* FAST_FUNC bb_get_last_path_component_strip(char *path)
{
	char *slash = last_char_is(path, '/');

	if (slash)
		while (*slash == '/' && slash != path)
			*slash-- = '\0';

	return bb_get_last_path_component_nostrip(path);
}
1	/* vi: set sw=4 ts=4: */
2	/*
3	* bb_get_last_path_component implementation for busybox
4	*
5	* Copyright (C) 2001 Manuel Novoa III <mjn3@codepoet.org>
6	*
7	* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
8	*/
9
10	#include "libbb.h"
11	/*
12	* "/" -> "/"
13	* "abc" -> "abc"
14	* "abc/def" -> "def"
15	* "abc/def/" -> ""
16	*/
17	char* FAST_FUNC bb_get_last_path_component_nostrip(const char *path)
18	{
19	char *slash = strrchr(path, '/');
20
21	if (!slash \|\| (slash == path && !slash[1]))
22	return (char*)path;
23
24	return slash + 1;
25	}
26
27	/*
28	* "/" -> "/"
29	* "abc" -> "abc"
30	* "abc/def" -> "def"
31	* "abc/def/" -> "def" !!
32	*/
33	char* FAST_FUNC bb_get_last_path_component_strip(char *path)
34	{
35	char *slash = last_char_is(path, '/');
36
37	if (slash)
38	while (*slash == '/' && slash != path)
39	*slash-- = '\0';
40
41	return bb_get_last_path_component_nostrip(path);
42	}