2e04a00685
* grub-core/gnulib/basename.c: Likewise. * grub-core/gnulib/dirname-lgpl.c: Likewise. * grub-core/gnulib/dirname.c: Likewise. * grub-core/gnulib/dirname.h: Likewise. * grub-core/gnulib/stripslash.c: Likewise.
58 lines
1.7 KiB
C
58 lines
1.7 KiB
C
/* basename.c -- return the last element in a file name
|
|
|
|
Copyright (C) 1990, 1998-2001, 2003-2006, 2009-2010 Free Software
|
|
Foundation, Inc.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <config.h>
|
|
|
|
#include "dirname.h"
|
|
|
|
#include <string.h>
|
|
#include "xalloc.h"
|
|
#include "xstrndup.h"
|
|
|
|
char *
|
|
base_name (char const *name)
|
|
{
|
|
char const *base = last_component (name);
|
|
size_t length;
|
|
|
|
/* If there is no last component, then name is a file system root or the
|
|
empty string. */
|
|
if (! *base)
|
|
return xstrndup (name, base_len (name));
|
|
|
|
/* Collapse a sequence of trailing slashes into one. */
|
|
length = base_len (base);
|
|
if (ISSLASH (base[length]))
|
|
length++;
|
|
|
|
/* On systems with drive letters, `a/b:c' must return `./b:c' rather
|
|
than `b:c' to avoid confusion with a drive letter. On systems
|
|
with pure POSIX semantics, this is not an issue. */
|
|
if (FILE_SYSTEM_PREFIX_LEN (base))
|
|
{
|
|
char *p = xmalloc (length + 3);
|
|
p[0] = '.';
|
|
p[1] = '/';
|
|
memcpy (p + 2, base, length);
|
|
p[length + 2] = '\0';
|
|
return p;
|
|
}
|
|
|
|
/* Finally, copy the basename. */
|
|
return xstrndup (base, length);
|
|
}
|