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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2004, 2005, 2007
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, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USA */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include <mailutils/errno.h>
#include <property0.h>
#undef min
#define min(a,b) ((a) < (b) ? (a) : (b))
static int property_find (mu_property_t, const char *, struct property_item **);
int
mu_property_create (mu_property_t *pp, void *owner)
{
mu_property_t prop;
if (pp == NULL)
return MU_ERR_OUT_PTR_NULL;
prop = calloc (1, sizeof *prop);
if (prop == NULL)
return ENOMEM;
mu_monitor_create (&prop->lock, 0, prop);
prop->owner = owner;
*pp = prop;
return 0;
}
void
mu_property_destroy (mu_property_t *pp, void *owner)
{
if (pp && *pp)
{
mu_property_t prop = *pp;
if (prop->owner == owner)
{
struct property_item *item, *cur;
/* Destroy the list and is properties. */
mu_monitor_wrlock (prop->lock);
for (item = prop->items; item; item = cur)
{
if (item->key)
free (item->key);
if (item->value)
free (item->value);
cur = item->next;
free (item);
}
mu_monitor_unlock (prop->lock);
mu_monitor_destroy (&prop->lock, prop);
free (prop);
}
*pp = NULL;
}
}
void *
mu_property_get_owner (mu_property_t prop)
{
return (prop == NULL) ? NULL : prop->owner;
}
int
mu_property_set_value (mu_property_t prop, const char *key, const char *value,
int overwrite)
{
struct property_item *item;
int status = property_find (prop, key, &item);
if (status != 0)
return status;
if (item->set)
{
if (overwrite)
{
item->set = 0;
if (item->value)
free (item->value);
item->value = NULL;
if (value)
{
item->set = 1;
item->value = strdup (value);
if (item->value == NULL)
status = ENOMEM;
}
}
}
else
{
item->set = 1;
if (item->value)
free (item->value);
if (value)
{
item->value = strdup (value);
if (item->value == NULL)
status = ENOMEM;
}
}
return status;
}
int
mu_property_get_value (mu_property_t prop, const char *key, char *buffer,
size_t buflen, size_t *n)
{
struct property_item *item = NULL;
int status;
size_t len;
status = property_find (prop, key, &item);
if (status != 0)
return status;
len = (item->value) ? strlen (item->value) : 0;
if (buffer && buflen != 0)
{
buflen--;
len = min (buflen, len);
strncpy (buffer, item->value, len)[len] = '\0';
}
if (n)
*n = len;
return 0;
}
int
mu_property_sget_value (mu_property_t prop, const char *key,
const char **buffer)
{
struct property_item *item = NULL;
int status;
status = property_find (prop, key, &item);
if (status == 0)
*buffer = item->value;
return status;
}
int
mu_property_aget_value (mu_property_t prop, const char *key,
char **buffer)
{
struct property_item *item = NULL;
int status;
status = property_find (prop, key, &item);
if (status == 0)
{
*buffer = strdup (item->value);
if (!*buffer)
status = ENOMEM;
}
return status;
}
int
mu_property_set (mu_property_t prop, const char *k)
{
struct property_item *item = NULL;
int status = property_find (prop, k, &item);
if (status != 0)
return status;
item->set = 1;
return 0;
}
int
mu_property_unset (mu_property_t prop, const char *k)
{
struct property_item *item = NULL;
int status = property_find (prop, k, &item);
if (status != 0)
return status;
item->set = 0;
return 0;
}
int
mu_property_is_set (mu_property_t prop, const char *k)
{
struct property_item *item = NULL;
int status = property_find (prop, k, &item);
if (status != 0)
return 0;
return item->set;
}
static int
property_find (mu_property_t prop, const char *key, struct property_item **item)
{
size_t len = 0;
struct property_item *cur = NULL;
if (prop == NULL || key == NULL)
return EINVAL;
mu_monitor_wrlock (prop->lock);
for (len = strlen (key), cur = prop->items; cur; cur = cur->next)
{
if (strlen (cur->key) == len && !strcmp (key, cur->key))
break;
}
if (cur == NULL)
{
cur = calloc (1, sizeof *cur);
if (cur == NULL)
{
mu_monitor_unlock (prop->lock);
return ENOMEM;
}
cur->key = strdup (key);
if (cur->key == NULL)
{
mu_monitor_unlock (prop->lock);
free (cur);
return ENOMEM;
}
cur->next = prop->items;
prop->items = cur;
}
*item = cur;
mu_monitor_unlock (prop->lock);
return 0;
}
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