Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Mini basename implementation for busybox |
| 4 | * |
Eric Andersen | c7bda1c | 2004-03-15 08:29:22 +0000 | [diff] [blame] | 5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 6 | * |
"Robert P. J. Day" | 801ab14 | 2006-07-12 07:56:04 +0000 | [diff] [blame] | 7 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 8 | * |
| 9 | */ |
| 10 | |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 11 | /* BB_AUDIT SUSv3 compliant */ |
| 12 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */ |
| 13 | |
| 14 | |
| 15 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org) |
| 16 | * |
| 17 | * Changes: |
| 18 | * 1) Now checks for too many args. Need at least one and at most two. |
| 19 | * 2) Don't check for options, as per SUSv3. |
| 20 | * 3) Save some space by using strcmp(). Calling strncmp() here was silly. |
| 21 | */ |
Mark Whitley | 827e45c | 2001-03-09 23:59:51 +0000 | [diff] [blame] | 22 | |
Denis Vlasenko | b6adbf1 | 2007-05-26 19:00:18 +0000 | [diff] [blame] | 23 | #include "libbb.h" |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 24 | |
Denis Vlasenko | 99912ca | 2007-04-10 15:43:37 +0000 | [diff] [blame] | 25 | /* This is a NOFORK applet. Be very careful! */ |
| 26 | |
Denis Vlasenko | 9b49a5e | 2007-10-11 10:05:36 +0000 | [diff] [blame^] | 27 | int basename_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; |
Rob Landley | dfba741 | 2006-03-06 20:47:33 +0000 | [diff] [blame] | 28 | int basename_main(int argc, char **argv) |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 29 | { |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 30 | size_t m, n; |
Eric Andersen | a005373 | 2000-07-10 20:08:09 +0000 | [diff] [blame] | 31 | char *s; |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 32 | |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 33 | if (((unsigned int)(argc-2)) >= 2) { |
| 34 | bb_show_usage(); |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 35 | } |
Erik Andersen | 330fd2b | 2000-05-19 05:35:19 +0000 | [diff] [blame] | 36 | |
Denis Vlasenko | 818322b | 2007-09-24 18:27:04 +0000 | [diff] [blame] | 37 | /* It should strip slash: /abc/def/ -> def */ |
| 38 | s = bb_get_last_path_component_strip(*++argv); |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 39 | |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 40 | if (*++argv) { |
Erik Andersen | ac130e1 | 2000-05-10 05:00:31 +0000 | [diff] [blame] | 41 | n = strlen(*argv); |
| 42 | m = strlen(s); |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 43 | if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) { |
Erik Andersen | ac130e1 | 2000-05-10 05:00:31 +0000 | [diff] [blame] | 44 | s[m-n] = '\0'; |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 45 | } |
Erik Andersen | ac130e1 | 2000-05-10 05:00:31 +0000 | [diff] [blame] | 46 | } |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 47 | |
Matt Kraai | 59df6f7 | 2001-05-16 14:21:09 +0000 | [diff] [blame] | 48 | puts(s); |
Manuel Novoa III | cad5364 | 2003-03-19 09:13:01 +0000 | [diff] [blame] | 49 | |
Denis Vlasenko | 99912ca | 2007-04-10 15:43:37 +0000 | [diff] [blame] | 50 | return fflush(stdout); |
Erik Andersen | 42387e4 | 2000-02-21 17:27:17 +0000 | [diff] [blame] | 51 | } |