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New version to cut size. Includes optional basename() compatibility, but

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enabling that would break the basename applet at least for one corner case.
This commit is contained in:
Manuel Novoa III 2001-12-05 04:35:32 +00:00
parent 6509f92a3b
commit 3280f9a3fc
1 changed files with 27 additions and 36 deletions
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63
libbb/get_last_path_component.c
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@ -1,8 +1,8 @@
/* vi: set sw=4 ts=4: */ /* 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 * 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 * 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 * You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/ */
#include <stdio.h> /* Set to 1 if you want basename() behavior for NULL or "". */
#include <string.h> /* WARNING!!! Doing so will break basename applet at least! */
#include "libbb.h" #define EMULATE_BASENAME 0
char *get_last_path_component(char *path) char *get_last_path_component(char *path)
{ {
char *s; #if EMULATE_BASENAME
register char *ptr = path; static const char null_or_empty[] = ".";
register char *prev = 0; #endif
char *first = path;
char *last;
while (*ptr) #if EMULATE_BASENAME
ptr++; if (!path || !*path) {
s = ptr - 1; return (char *) null_or_empty;
}
#endif
/* strip trailing slashes */ last = path - 1;
while (s != path && *s == '/') {
*s-- = '\0'; while (*path) {
if ((*path != '/') && (path > ++last)) {
last = first = path;
}
++path;
} }
/* find last component */ if (*first == '/') {
ptr = path; last = first;
while (*ptr != '\0') {
if (*ptr == '/')
prev = ptr;
ptr++;
} }
s = prev; last[1] = 0;
if (s == NULL || s[1] == '\0') return first;
return path;
else
return s+1;
} }
/* END CODE */
/*
Local Variables:
c-file-style: "linux"
c-basic-offset: 4
tab-width: 4
End:
*/