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/* dirname -- strip filename suffix from pathname
Copyright (C) 90, 91, 92, 93, 94, 1995 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. */
/* Written by David MacKenzie and Jim Meyering. */
#include <config.h>
#include <stdio.h>
#include <sys/types.h>
#include "system.h"
#include "version.h"
#include "long-options.h"
#include "error.h"
void strip_trailing_slashes ();
/* The name this program was run with. */
char *program_name;
static void
usage (int status)
{
if (status != 0)
fprintf (stderr, _("Try `%s --help' for more information.\n"),
program_name);
else
{
printf (_("\
Usage: %s NAME\n\
or: %s OPTION\n\
"),
program_name, program_name);
printf (_("\
Print NAME with its trailing /component removed; if NAME contains no /'s,\n\
output `.' (meaning the current directory).\n\
\n\
--help display this help and exit\n\
--version output version information and exit\n\
"));
}
exit (status);
}
void
main (int argc, char **argv)
{
register char *path;
register char *slash;
program_name = argv[0];
parse_long_options (argc, argv, "dirname", version_string, usage);
if (argc != 2)
{
error (0, 0, _("too %s arguments"), argc < 2 ? _("few") : _("many"));
usage (1);
}
path = argv[1];
strip_trailing_slashes (path);
slash = strrchr (path, '/');
if (slash == NULL)
path = (char *) ".";
else
{
/* Remove any trailing slashes and final element. */
while (slash > path && *slash == '/')
--slash;
slash[1] = 0;
}
puts (path);
exit (0);
}
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