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	niro	532	/* 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	niro	816	/*
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	niro	532	{
19	niro	816	char *slash = strrchr(path, '/');
20	niro	532
21	niro	816	if (!slash \|\| (slash == path && !slash[1]))
22			return (char*)path;
23	niro	532
24	niro	816	return slash + 1;
25			}
26	niro	532
27	niro	816	/*
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	niro	532
37	niro	816	if (slash)
38			while (*slash == '/' && slash != path)
39			*slash-- = '\0';
40
41			return bb_get_last_path_component_nostrip(path);
42	niro	532	}