busybox/libbb/get_last_path_component.c

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/* vi: set sw=4 ts=4: */
/*
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* bb_get_last_path_component implementation for busybox
*
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* Copyright (C) 2001 Manuel Novoa III <mjn3@codepoet.org>
*
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* 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);
}