mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-03-07 21:44:47 +02:00
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* path-concat.c -- concatenate two arbitrary pathnames
|
|
Copyright (C) 1996 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 2, 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, write to the Free Software Foundation,
|
|
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
/* Written by Jim Meyering. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
char *malloc ();
|
|
char *stpcpy ();
|
|
|
|
/* Concatenate two pathname components, DIR and BASE, in newly-allocated
|
|
storage and return the result. Return 0 if out of memory. Add a slash
|
|
between DIR and BASE in the result if neither would contribute one.
|
|
If each would contribute at least one, elide one from the end of DIR.
|
|
Otherwise, simply concatenate DIR and BASE. In any case, if
|
|
BASE_IN_RESULT is non-NULL, set *BASE_IN_RESULT to point to the copy of
|
|
BASE in the returned concatenation. */
|
|
|
|
char *
|
|
path_concat (dir, base, base_in_result)
|
|
const char *dir;
|
|
const char *base;
|
|
char **base_in_result;
|
|
{
|
|
char *p;
|
|
char *p_concat;
|
|
|
|
p_concat = malloc (strlen (dir) + strlen (base) + 2);
|
|
if (!p_concat)
|
|
return 0;
|
|
|
|
p = stpcpy (p_concat, dir);
|
|
|
|
if (*(p - 1) == '/' && *base == '/')
|
|
--p;
|
|
else if (*(p - 1) != '/' && *base != '/')
|
|
p = stpcpy (p, "/");
|
|
|
|
if (base_in_result)
|
|
*base_in_result = p;
|
|
|
|
stpcpy (p, base);
|
|
|
|
return p_concat;
|
|
}
|