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1 /* Libiberty basename. Like basename, but is not overridden by the
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2 system C library.
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3 Copyright (C) 2001, 2002 Free Software Foundation, Inc.
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4
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5 This file is part of the libiberty library.
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6 Libiberty is free software; you can redistribute it and/or
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7 modify it under the terms of the GNU Library General Public
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8 License as published by the Free Software Foundation; either
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9 version 2 of the License, or (at your option) any later version.
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10
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11 Libiberty is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 Library General Public License for more details.
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15
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16 You should have received a copy of the GNU Library General Public
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17 License along with libiberty; see the file COPYING.LIB. If
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18 not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
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19 Boston, MA 02110-1301, USA. */
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20
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21 /*
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22
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23 @deftypefn Replacement {const char*} lbasename (const char *@var{name})
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24
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25 Given a pointer to a string containing a typical pathname
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26 (@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the
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27 last component of the pathname (@samp{ls.c} in this case). The
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28 returned pointer is guaranteed to lie within the original
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29 string. This latter fact is not true of many vendor C
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30 libraries, which return special strings or modify the passed
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31 strings for particular input.
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32
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33 In particular, the empty string returns the same empty string,
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34 and a path ending in @code{/} returns the empty string after it.
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35
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36 @end deftypefn
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37
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38 */
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39
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40 #ifdef HAVE_CONFIG_H
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41 #include "config.h"
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42 #endif
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43 #include "ansidecl.h"
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44 #include "libiberty.h"
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45 #include "safe-ctype.h"
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46 #include "filenames.h"
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47
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48 const char *
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49 lbasename (const char *name)
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50 {
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51 const char *base;
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52
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53 #if defined (HAVE_DOS_BASED_FILE_SYSTEM)
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54 /* Skip over a possible disk name. */
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55 if (ISALPHA (name[0]) && name[1] == ':')
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56 name += 2;
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57 #endif
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58
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59 for (base = name; *name; name++)
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60 if (IS_DIR_SEPARATOR (*name))
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61 base = name + 1;
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62
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63 return base;
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64 }
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