copy.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010 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 <string.h>
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <mailutils/types.h>
#include <mailutils/argcv.h>
#include <mailutils/secret.h>
#include <mailutils/util.h>
#include <mailutils/sys/url.h>
struct copy_tab
{
int mask;
int (*fun) (mu_url_t, mu_url_t, size_t);
size_t off;
};
static int
_url_copy_str (mu_url_t dest_url, mu_url_t src_url, size_t off)
{
char **dest = (char**) ((char*) dest_url + off);
char *src = *(char**) ((char*) src_url + off);
char *p = strdup (src);
if (!p)
return ENOMEM;
*dest = p;
return 0;
}
static int
_url_copy_secret (mu_url_t dest, mu_url_t src, size_t off)
{
return mu_secret_dup (src->secret, &dest->secret);
}
static int
_url_copy_port (mu_url_t dest, mu_url_t src, size_t off)
{
if (src->portstr)
{
dest->portstr = strdup (src->portstr);
if (!dest->portstr)
return ENOMEM;
}
dest->port = src->port;
return 0;
}
static char **
argcv_copy (size_t argc, char **argv)
{
size_t i;
char **nv = calloc (argc + 1, sizeof (nv[0]));
if (!nv)
return NULL;
for (i = 0; i < argc; i++)
if ((nv[i] = strdup (argv[i])) == NULL)
{
mu_argcv_free (i, nv);
free (nv);
return NULL;
}
return nv;
}
static int
_url_copy_param (mu_url_t dest, mu_url_t src, size_t off)
{
if ((dest->fvpairs = argcv_copy (src->fvcount, src->fvpairs)) == NULL)
return ENOMEM;
dest->fvcount = src->fvcount;
return 0;
}
static int
_url_copy_query (mu_url_t dest, mu_url_t src, size_t off)
{
if ((dest->qargv = argcv_copy (src->qargc, src->qargv)) == NULL)
return ENOMEM;
dest->qargc = src->qargc;
return 0;
}
static struct copy_tab copy_tab[] = {
{ MU_URL_SCHEME, _url_copy_str, mu_offsetof (struct _mu_url, scheme) },
{ MU_URL_USER, _url_copy_str, mu_offsetof (struct _mu_url, user) },
{ MU_URL_SECRET, _url_copy_secret, 0 },
{ MU_URL_AUTH, _url_copy_str, mu_offsetof (struct _mu_url, auth) },
{ MU_URL_HOST, _url_copy_str, mu_offsetof (struct _mu_url, host) },
{ MU_URL_PORT, _url_copy_port, 0 },
{ MU_URL_PATH, _url_copy_str, mu_offsetof (struct _mu_url, path) },
{ MU_URL_PARAM, _url_copy_param, 0 },
{ MU_URL_QUERY, _url_copy_query, 0 }
};
int
mu_url_copy_hints (mu_url_t url, mu_url_t hint)
{
int i;
if (!url)
return EINVAL;
if (!hint)
return 0;
for (i = 0; i < MU_ARRAY_SIZE (copy_tab); i++)
{
if (!(url->flags & copy_tab[i].mask) &&
(hint->flags & copy_tab[i].mask))
{
int rc = copy_tab[i].fun (url, hint, copy_tab[i].off);
if (rc)
return rc;
url->flags |= copy_tab[i].mask;
}
}
return 0;
}