get-param.c
2.65 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 2010, 2011 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/argcv.h>
#include <mailutils/sys/url.h>
/* field-value pairs accessors */
int
mu_url_sget_fvpairs (const mu_url_t url, size_t *fvc, char ***fvp)
{
if (url == NULL)
return EINVAL;
/* FIXME: no _get_fvpairs method, but the method stuff needs to be rewritten
anyway */
*fvc = url->fvcount;
*fvp = url->fvpairs;
return 0;
}
int
mu_url_sget_param (const mu_url_t url, const char *param, const char **val)
{
size_t fvc;
char **fvp;
int status = mu_url_sget_fvpairs (url, &fvc, &fvp);
if (status)
return status;
if (fvc)
{
size_t i;
for (i = 0; i < fvc; i++)
{
const char *p;
char *q;
for (p = param, q = fvp[i]; *p && *q && *p == *q; p++, q++)
;
if (*p == 0)
{
if (*q == 0)
{
if (val)
*val = q;
return 0;
}
else if (*q == '=')
{
if (val)
*val = q + 1;
return 0;
}
}
}
}
return MU_ERR_NOENT;
}
int
mu_url_aget_fvpairs (const mu_url_t url, size_t *pfvc, char ***pfvp)
{
size_t fvc, i;
char **fvp;
char **fvcopy;
int rc = mu_url_sget_fvpairs (url, &fvc, &fvp);
if (rc)
return rc;
fvcopy = calloc (fvc + 1, sizeof (fvcopy[0]));
if (!fvcopy)
return errno;
for (i = 0; i < fvc; i++)
{
if (!(fvcopy[i] = strdup (fvp[i])))
{
mu_argcv_free (i, fvcopy);
return errno;
}
}
fvcopy[i] = NULL;
*pfvc = fvc;
*pfvp = fvcopy;
return 0;
}
int
mu_url_aget_param (const mu_url_t url, const char *param, char **val)
{
const char *s;
int status = mu_url_sget_param (url, param, &s);
if (status == 0)
{
*val = strdup (s);
if (!*val)
status = ENOMEM;
}
return status;
}