1/* Libiberty basename.  Like basename, but is not overridden by the
2   system C library.
3   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
4
5This file is part of the libiberty library.
6Libiberty is free software; you can redistribute it and/or
7modify it under the terms of the GNU Library General Public
8License as published by the Free Software Foundation; either
9version 2 of the License, or (at your option) any later version.
10
11Libiberty is distributed in the hope that it will be useful,
12but WITHOUT ANY WARRANTY; without even the implied warranty of
13MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14Library General Public License for more details.
15
16You should have received a copy of the GNU Library General Public
17License along with libiberty; see the file COPYING.LIB.  If
18not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,
19Boston, MA 02110-1301, USA.  */
20
21/*
22
23@deftypefn Replacement {const char*} lbasename (const char *@var{name})
24
25Given a pointer to a string containing a typical pathname
26(@samp{/usr/src/cmd/ls/ls.c} for example), returns a pointer to the
27last component of the pathname (@samp{ls.c} in this case).  The
28returned pointer is guaranteed to lie within the original
29string.  This latter fact is not true of many vendor C
30libraries, which return special strings or modify the passed
31strings for particular input.
32
33In particular, the empty string returns the same empty string,
34and a path ending in @code{/} returns the empty string after it.
35
36@end deftypefn
37
38*/
39
40#ifdef HAVE_CONFIG_H
41#include "config.h"
42#endif
43#include "ansidecl.h"
44#include "libiberty.h"
45#include "safe-ctype.h"
46#include "filenames.h"
47
48const char *
49lbasename (const char *name)
50{
51  const char *base;
52
53#if defined (HAVE_DOS_BASED_FILE_SYSTEM)
54  /* Skip over a possible disk name.  */
55  if (ISALPHA (name[0]) && name[1] == ':')
56    name += 2;
57#endif
58
59  for (base = name; *name; name++)
60    if (IS_DIR_SEPARATOR (*name))
61      base = name + 1;
62
63  return base;
64}
65