1 | /* vi: set sw=4 ts=4: */
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2 | /*
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3 | * Mini basename implementation for busybox
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4 | *
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5 | * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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6 | *
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7 | * This program is free software; you can redistribute it and/or modify
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8 | * it under the terms of the GNU General Public License as published by
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9 | * the Free Software Foundation; either version 2 of the License, or
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10 | * (at your option) any later version.
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11 | *
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12 | * This program is distributed in the hope that it will be useful,
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13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 | * General Public License for more details.
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16 | *
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17 | * You should have received a copy of the GNU General Public License
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18 | * along with this program; if not, write to the Free Software
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19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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20 | *
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21 | */
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22 |
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23 | /* BB_AUDIT SUSv3 compliant */
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24 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */
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25 |
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26 |
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27 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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28 | *
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29 | * Changes:
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30 | * 1) Now checks for too many args. Need at least one and at most two.
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31 | * 2) Don't check for options, as per SUSv3.
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32 | * 3) Save some space by using strcmp(). Calling strncmp() here was silly.
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33 | */
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34 |
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35 | #include <stdlib.h>
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36 | #include <stdio.h>
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37 | #include <string.h>
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38 | #include "busybox.h"
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39 |
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40 | int basename_main(int argc, char **argv)
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41 | {
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42 | size_t m, n;
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43 | char *s;
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44 |
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45 | if (((unsigned int)(argc-2)) >= 2) {
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46 | bb_show_usage();
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47 | }
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48 |
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49 | s = bb_get_last_path_component(*++argv);
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50 |
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51 | if (*++argv) {
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52 | n = strlen(*argv);
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53 | m = strlen(s);
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54 | if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) {
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55 | s[m-n] = '\0';
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56 | }
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57 | }
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58 |
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59 | puts(s);
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60 |
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61 | bb_fflush_stdout_and_exit(EXIT_SUCCESS);
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62 | }
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