busybox/coreutils/basename.c
Denis Vlasenko 818322b9b1 *: kill bb_get_last_path_component, replace with two functions
(one which strips trailing slash and one which does not)
wget: straighten out as a result of above change
   text    data     bss     dec     hex filename
   5056       1       0    5057    13c1 busybox.t4/networking/wget.o
   5022       0       0    5022    139e busybox.t5/networking/wget.o
2007-09-24 18:27:04 +00:00

52 lines
1.1 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Mini basename implementation for busybox
*
* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
*
* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*
*/
/* BB_AUDIT SUSv3 compliant */
/* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */
/* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
*
* Changes:
* 1) Now checks for too many args. Need at least one and at most two.
* 2) Don't check for options, as per SUSv3.
* 3) Save some space by using strcmp(). Calling strncmp() here was silly.
*/
#include "libbb.h"
/* This is a NOFORK applet. Be very careful! */
int basename_main(int argc, char **argv);
int basename_main(int argc, char **argv)
{
size_t m, n;
char *s;
if (((unsigned int)(argc-2)) >= 2) {
bb_show_usage();
}
/* It should strip slash: /abc/def/ -> def */
s = bb_get_last_path_component_strip(*++argv);
if (*++argv) {
n = strlen(*argv);
m = strlen(s);
if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) {
s[m-n] = '\0';
}
}
puts(s);
return fflush(stdout);
}