propget.c
2.06 KB
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007, 2008, 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 <mailutils/types.h>
#include <mailutils/errno.h>
#include <mailutils/sys/property.h>
int
mu_property_sget_value (mu_property_t prop, const char *key,
const char **pval)
{
int rc = _mu_property_check (prop);
if (rc)
return rc;
if (!prop->_prop_getval)
return MU_ERR_EMPTY_VFN;
return prop->_prop_getval (prop, key, pval);
}
int
mu_property_aget_value (mu_property_t prop, const char *key,
char **buffer)
{
const char *value;
int rc = mu_property_sget_value (prop, key, &value);
if (rc == 0)
{
if ((*buffer = strdup (value)) == NULL)
return ENOMEM;
}
return rc;
}
int
mu_property_get_value (mu_property_t prop, const char *key, char *buffer,
size_t buflen, size_t *n)
{
size_t len = 0;
const char *value;
int rc = mu_property_sget_value (prop, key, &value);
if (rc == 0)
{
len = strlen (value) + 1;
if (buffer && buflen)
{
if (buflen < len)
len = buflen;
len--;
memcpy (buffer, value, len);
buffer[len] = 0;
}
}
if (n)
*n = len;
return rc;
}
int
mu_property_is_set (mu_property_t prop, const char *key)
{
if (_mu_property_check (prop))
return 0;
return mu_property_sget_value (prop, key, NULL) == 0;
}