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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 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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8 | *
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9 | */
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10 |
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11 | /* BB_AUDIT SUSv3 compliant */
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12 | /* http://www.opengroup.org/onlinepubs/007904975/utilities/basename.html */
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13 |
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14 |
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15 | /* Mar 16, 2003 Manuel Novoa III (mjn3@codepoet.org)
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16 | *
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17 | * Changes:
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18 | * 1) Now checks for too many args. Need at least one and at most two.
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19 | * 2) Don't check for options, as per SUSv3.
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20 | * 3) Save some space by using strcmp(). Calling strncmp() here was silly.
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21 | */
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22 |
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23 | #include "libbb.h"
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24 |
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25 | /* This is a NOFORK applet. Be very careful! */
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26 |
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27 | int basename_main(int argc, char **argv);
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28 | int basename_main(int argc, char **argv)
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29 | {
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30 | size_t m, n;
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31 | char *s;
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32 |
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33 | if (((unsigned int)(argc-2)) >= 2) {
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34 | bb_show_usage();
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35 | }
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36 |
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37 | s = bb_get_last_path_component(*++argv);
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38 |
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39 | if (*++argv) {
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40 | n = strlen(*argv);
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41 | m = strlen(s);
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42 | if ((m > n) && ((strcmp)(s+m-n, *argv) == 0)) {
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43 | s[m-n] = '\0';
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44 | }
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45 | }
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46 |
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47 | puts(s);
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48 |
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49 | return fflush(stdout);
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50 | }
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