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/*
* Copyright © 2016 Canonical Limited
*
* 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 2 of the licence, 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/>.
*
* Author: Allison Lortie <desrt@desrt.ca>
*/
#include "permissions.h"
void
permission_list_add (PermissionList *self,
const gchar *string)
{
gsize current;
current = (gsize) g_hash_table_lookup (self->hash_table, string);
g_hash_table_insert (self->hash_table, g_strdup (string), (gpointer) (current + 1));
}
void
permission_list_remove (PermissionList *self,
const gchar *string)
{
gsize current;
current = (gsize) g_hash_table_lookup (self->hash_table, string);
g_assert (current != 0);
if (current > 1)
g_hash_table_insert (self->hash_table, g_strdup (string), (gpointer) (current - 1));
else
g_hash_table_remove (self->hash_table, string);
}
void
permission_list_merge (PermissionList *self,
PermissionList *to_merge)
{
GHashTableIter iter;
gpointer key;
g_hash_table_iter_init (&iter, to_merge->hash_table);
while (g_hash_table_iter_next (&iter, &key, NULL))
permission_list_add (self, key);
}
void
permission_list_unmerge (PermissionList *self,
PermissionList *to_unmerge)
{
GHashTableIter iter;
gpointer key;
g_hash_table_iter_init (&iter, to_unmerge->hash_table);
while (g_hash_table_iter_next (&iter, &key, NULL))
permission_list_remove (self, key);
}
void
permission_list_init (PermissionList *self,
gchar **contents)
{
self->hash_table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
if (contents != NULL)
{
gint i;
for (i = 0; contents[i]; i++)
g_hash_table_insert (self->hash_table, contents[i], (gpointer) 1u);
g_free (contents);
}
}
void
permission_list_clear (PermissionList *self)
{
g_hash_table_unref (self->hash_table);
self->hash_table = NULL;
}
void
permissions_init (Permissions *permissions)
{
permission_list_init (&permissions->readable, NULL);
permission_list_init (&permissions->writable, NULL);
}
void
permissions_clear (Permissions *permissions)
{
permission_list_clear (&permissions->readable);
permission_list_clear (&permissions->writable);
}
static void
merge_string (gchar **dest,
const gchar *src)
{
if (*dest == NULL)
*dest = g_strdup (src);
g_assert_cmpstr (*dest, ==, src);
}
void
permissions_merge (Permissions *permissions,
Permissions *to_merge)
{
merge_string (&permissions->app_id, to_merge->app_id);
merge_string (&permissions->ipc_dir, to_merge->ipc_dir);
permission_list_merge (&permissions->readable, &to_merge->readable);
permission_list_merge (&permissions->writable, &to_merge->writable);
}
void
permissions_unmerge (Permissions *permissions,
Permissions *to_unmerge)
{
permission_list_unmerge (&permissions->readable, &to_unmerge->readable);
permission_list_unmerge (&permissions->writable, &to_unmerge->writable);
}
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