mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2024-12-30 15:38:06 +01:00
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/* dirname.c -- return all but the last element in a path
|
|
Copyright (C) 1990 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#ifdef STDC_HEADERS
|
|
#include <stdlib.h>
|
|
#else
|
|
char *malloc ();
|
|
#endif
|
|
#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
|
|
#include <string.h>
|
|
#else
|
|
#include <strings.h>
|
|
#ifndef strrchr
|
|
#define strrchr rindex
|
|
#endif
|
|
#endif
|
|
|
|
/* Return the leading directories part of PATH,
|
|
allocated with malloc. If out of memory, return 0.
|
|
Assumes that trailing slashes have already been
|
|
removed. */
|
|
|
|
char *
|
|
dirname (path)
|
|
char *path;
|
|
{
|
|
char *newpath;
|
|
char *slash;
|
|
int length; /* Length of result, not including NUL. */
|
|
|
|
slash = strrchr (path, '/');
|
|
if (slash == 0)
|
|
{
|
|
/* File is in the current directory. */
|
|
path = ".";
|
|
length = 1;
|
|
}
|
|
else
|
|
{
|
|
/* Remove any trailing slashes from the result. */
|
|
while (slash > path && *slash == '/')
|
|
--slash;
|
|
|
|
length = slash - path + 1;
|
|
}
|
|
newpath = (char *) malloc (length + 1);
|
|
if (newpath == 0)
|
|
return 0;
|
|
strncpy (newpath, path, length);
|
|
newpath[length] = 0;
|
|
return newpath;
|
|
}
|