diff options
| -rw-r--r-- | libbb/get_last_path_component.c | 63 |
1 files changed, 27 insertions, 36 deletions
diff --git a/libbb/get_last_path_component.c b/libbb/get_last_path_component.c index 85c7609c9..6af726c83 100644 --- a/libbb/get_last_path_component.c +++ b/libbb/get_last_path_component.c @@ -1,8 +1,8 @@ /* vi: set sw=4 ts=4: */ /* - * Utility routines. + * get_last_path_component implementation for busybox * - * Copyright (C) 1999,2000,2001 by Erik Andersen <andersee@debian.org> + * Copyright (C) 2001 Manuel Novoa III <mjn3@opensource.lineo.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -17,49 +17,40 @@ * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * */ -#include <stdio.h> -#include <string.h> -#include "libbb.h" - +/* Set to 1 if you want basename() behavior for NULL or "". */ +/* WARNING!!! Doing so will break basename applet at least! */ +#define EMULATE_BASENAME 0 char *get_last_path_component(char *path) { - char *s; - register char *ptr = path; - register char *prev = 0; +#if EMULATE_BASENAME + static const char null_or_empty[] = "."; +#endif + char *first = path; + char *last; + +#if EMULATE_BASENAME + if (!path || !*path) { + return (char *) null_or_empty; + } +#endif - while (*ptr) - ptr++; - s = ptr - 1; + last = path - 1; - /* strip trailing slashes */ - while (s != path && *s == '/') { - *s-- = '\0'; + while (*path) { + if ((*path != '/') && (path > ++last)) { + last = first = path; + } + ++path; } - /* find last component */ - ptr = path; - while (*ptr != '\0') { - if (*ptr == '/') - prev = ptr; - ptr++; + if (*first == '/') { + last = first; } - s = prev; + last[1] = 0; - if (s == NULL || s[1] == '\0') - return path; - else - return s+1; + return first; } - - -/* END CODE */ -/* -Local Variables: -c-file-style: "linux" -c-basic-offset: 4 -tab-width: 4 -End: -*/ |