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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010-2012 Free Software Foundation, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library. If not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <mailutils/types.h>
#include <mailutils/errno.h>
#include <mailutils/sys/url.h>
int
mu_url_uplevel (mu_url_t url, mu_url_t *upurl)
{
int rc;
char *p;
mu_url_t new_url;
if (url->_uplevel)
return url->_uplevel (url, upurl);
if (!url->path)
return MU_ERR_NOENT;
p = strrchr (url->path, '/');
rc = mu_url_dup (url, &new_url);
if (rc == 0)
{
if (!p || p == url->path)
{
free (new_url->path);
new_url->path = NULL;
}
else
{
size_t size = p - url->path;
new_url->path = realloc (new_url->path, size + 1);
if (!new_url->path)
{
mu_url_destroy (&new_url);
return ENOMEM;
}
memcpy (new_url->path, url->path, size);
new_url->path[size] = 0;
}
*upurl = new_url;
}
return rc;
}
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