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NetworkManager/libnm-core/nm-keyfile-utils.c
Thomas Haller 8bace23beb all: cleanup includes and let "nm-default.h" include "config.h" 
- All internal source files (except "examples", which are not internal)
  should include "config.h" first. As also all internal source
  files should include "nm-default.h", let "config.h" be included
  by "nm-default.h" and include "nm-default.h" as first in every
  source file.
  We already wanted to include "nm-default.h" before other headers
  because it might contains some fixes (like "nm-glib.h" compatibility)
  that is required first.

- After including "nm-default.h", we optinally allow for including the
  corresponding header file for the source file at hand. The idea
  is to ensure that each header file is self contained.

- Don't include "config.h" or "nm-default.h" in any header file
  (except "nm-sd-adapt.h"). Public headers anyway must not include
  these headers, and internal headers are never included after
  "nm-default.h", as of the first previous point.

- Include all internal headers with quotes instead of angle brackets.
  In practice it doesn't matter, because in our public headers we must
  include other headers with angle brackets. As we use our public
  headers also to compile our interal source files, effectively the
  result must be the same. Still do it for consistency.

- Except for <config.h> itself. Include it with angle brackets as suggested by
  https://www.gnu.org/software/autoconf/manual/autoconf.html#Configuration-Headers
2016-02-19 17:53:25 +01:00

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/* NetworkManager system settings service
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* (C) Copyright 2010 Red Hat, Inc.
*/
#include "nm-default.h"
#include <stdlib.h>
#include <string.h>
#include "nm-keyfile-utils.h"
#include "nm-keyfile-internal.h"
#include "nm-setting-wired.h"
#include "nm-setting-wireless.h"
#include "nm-setting-wireless-security.h"
typedef struct {
const char *setting;
const char *alias;
} SettingAlias;
static const SettingAlias alias_list[] = {
{ NM_SETTING_WIRED_SETTING_NAME, "ethernet" },
{ NM_SETTING_WIRELESS_SETTING_NAME, "wifi" },
{ NM_SETTING_WIRELESS_SECURITY_SETTING_NAME, "wifi-security" },
};
const char *
nm_keyfile_plugin_get_alias_for_setting_name (const char *setting_name)
{
guint i;
g_return_val_if_fail (setting_name != NULL, NULL);
for (i = 0; i < G_N_ELEMENTS (alias_list); i++) {
if (strcmp (setting_name, alias_list[i].setting) == 0)
return alias_list[i].alias;
}
return NULL;
}
const char *
nm_keyfile_plugin_get_setting_name_for_alias (const char *alias)
{
guint i;
g_return_val_if_fail (alias != NULL, NULL);
for (i = 0; i < G_N_ELEMENTS (alias_list); i++) {
if (strcmp (alias, alias_list[i].alias) == 0)
return alias_list[i].setting;
}
return NULL;
}
/**********************************************************************/
/* List helpers */
#define DEFINE_KF_LIST_WRAPPER(stype, get_ctype, set_ctype) \
get_ctype \
nm_keyfile_plugin_kf_get_##stype##_list (GKeyFile *kf, \
const char *group, \
const char *key, \
gsize *out_length, \
GError **error) \
{ \
get_ctype list; \
const char *alias; \
GError *local = NULL; \
\
list = g_key_file_get_##stype##_list (kf, group, key, out_length, &local); \
if (g_error_matches (local, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_GROUP_NOT_FOUND)) { \
alias = nm_keyfile_plugin_get_alias_for_setting_name (group); \
if (alias) { \
g_clear_error (&local); \
list = g_key_file_get_##stype##_list (kf, alias, key, out_length, &local); \
} \
} \
if (local) \
g_propagate_error (error, local); \
return list; \
} \
\
void \
nm_keyfile_plugin_kf_set_##stype##_list (GKeyFile *kf, \
const char *group, \
const char *key, \
set_ctype list[], \
gsize length) \
{ \
const char *alias; \
\
alias = nm_keyfile_plugin_get_alias_for_setting_name (group); \
g_key_file_set_##stype##_list (kf, alias ? alias : group, key, list, length); \
}
DEFINE_KF_LIST_WRAPPER(integer, gint*, gint);
DEFINE_KF_LIST_WRAPPER(string, gchar **, const gchar* const);
/* Single value helpers */
#define DEFINE_KF_WRAPPER(stype, get_ctype, set_ctype) \
get_ctype \
nm_keyfile_plugin_kf_get_##stype (GKeyFile *kf, \
const char *group, \
const char *key, \
GError **error) \
{ \
get_ctype val; \
const char *alias; \
GError *local = NULL; \
\
val = g_key_file_get_##stype (kf, group, key, &local); \
if (g_error_matches (local, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_GROUP_NOT_FOUND)) { \
alias = nm_keyfile_plugin_get_alias_for_setting_name (group); \
if (alias) { \
g_clear_error (&local); \
val = g_key_file_get_##stype (kf, alias, key, &local); \
} \
} \
if (local) \
g_propagate_error (error, local); \
return val; \
} \
\
void \
nm_keyfile_plugin_kf_set_##stype (GKeyFile *kf, \
const char *group, \
const char *key, \
set_ctype value) \
{ \
const char *alias; \
\
alias = nm_keyfile_plugin_get_alias_for_setting_name (group); \
g_key_file_set_##stype (kf, alias ? alias : group, key, value); \
}
DEFINE_KF_WRAPPER(string, gchar*, const gchar*);
DEFINE_KF_WRAPPER(integer, gint, gint);
DEFINE_KF_WRAPPER(uint64, guint64, guint64);
DEFINE_KF_WRAPPER(boolean, gboolean, gboolean);
DEFINE_KF_WRAPPER(value, gchar*, const gchar*);
gchar **
nm_keyfile_plugin_kf_get_keys (GKeyFile *kf,
const char *group,
gsize *out_length,
GError **error)
{
gchar **keys;
const char *alias;
GError *local = NULL;
keys = g_key_file_get_keys (kf, group, out_length, &local);
if (g_error_matches (local, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_GROUP_NOT_FOUND)) {
alias = nm_keyfile_plugin_get_alias_for_setting_name (group);
if (alias) {
g_clear_error (&local);
keys = g_key_file_get_keys (kf, alias, out_length, &local);
}
}
if (local)
g_propagate_error (error, local);
return keys;
}
gboolean
nm_keyfile_plugin_kf_has_key (GKeyFile *kf,
const char *group,
const char *key,
GError **error)
{
gboolean has;
const char *alias;
GError *local = NULL;
has = g_key_file_has_key (kf, group, key, &local);
if (g_error_matches (local, G_KEY_FILE_ERROR, G_KEY_FILE_ERROR_GROUP_NOT_FOUND)) {
alias = nm_keyfile_plugin_get_alias_for_setting_name (group);
if (alias) {
g_clear_error (&local);
has = g_key_file_has_key (kf, alias, key, &local);
}
}
if (local)
g_propagate_error (error, local);
return has;
}
/************************************************************************/
void
_nm_keyfile_copy (GKeyFile *dst, GKeyFile *src)
{
gs_strfreev char **groups = NULL;
guint g, k;
groups = g_key_file_get_groups (src, NULL);
for (g = 0; groups && groups[g]; g++) {
const char *group = groups[g];
gs_strfreev char **keys = NULL;
keys = g_key_file_get_keys (src, group, NULL, NULL);
if (!keys)
continue;
for (k = 0; keys[k]; k++) {
const char *key = keys[k];
gs_free char *value = NULL;
value = g_key_file_get_value (src, group, key, NULL);
if (value)
g_key_file_set_value (dst, group, key, value);
else
g_key_file_remove_key (dst, group, key, NULL);
}
}
}
/************************************************************************/
gboolean
_nm_keyfile_a_contains_all_in_b (GKeyFile *kf_a, GKeyFile *kf_b)
{
gs_strfreev char **groups = NULL;
guint i, j;
if (kf_a == kf_b)
return TRUE;
if (!kf_a || !kf_b)
return FALSE;
groups = g_key_file_get_groups (kf_a, NULL);
for (i = 0; groups && groups[i]; i++) {
gs_strfreev char **keys = NULL;
keys = g_key_file_get_keys (kf_a, groups[i], NULL, NULL);
if (!keys)
continue;
for (j = 0; keys[j]; j++) {
gs_free char *key_a = g_key_file_get_value (kf_a, groups[i], keys[j], NULL);
gs_free char *key_b = g_key_file_get_value (kf_b, groups[i], keys[j], NULL);
if (g_strcmp0 (key_a, key_b) != 0)
return FALSE;
}
}
return TRUE;
}
static gboolean
_nm_keyfile_equals_ordered (GKeyFile *kf_a, GKeyFile *kf_b)
{
gs_strfreev char **groups = NULL;
gs_strfreev char **groups_b = NULL;
guint i, j;
if (kf_a == kf_b)
return TRUE;
if (!kf_a || !kf_b)
return FALSE;
groups = g_key_file_get_groups (kf_a, NULL);
groups_b = g_key_file_get_groups (kf_b, NULL);
if (!groups && !groups_b)
return TRUE;
if (!groups || !groups_b)
return FALSE;
for (i = 0; groups[i] && groups_b[i] && !strcmp (groups[i], groups_b[i]); i++)
;
if (groups[i] || groups_b[i])
return FALSE;
for (i = 0; groups[i]; i++) {
gs_strfreev char **keys = NULL;
gs_strfreev char **keys_b = NULL;
keys = g_key_file_get_keys (kf_a, groups[i], NULL, NULL);
keys_b = g_key_file_get_keys (kf_b, groups[i], NULL, NULL);
if ((!keys) != (!keys_b))
return FALSE;
if (!keys)
continue;
for (j = 0; keys[j] && keys_b[j] && !strcmp (keys[j], keys_b[j]); j++)
;
if (keys[j] || keys_b[j])
return FALSE;
for (j = 0; keys[j]; j++) {
gs_free char *key_a = g_key_file_get_value (kf_a, groups[i], keys[j], NULL);
gs_free char *key_b = g_key_file_get_value (kf_b, groups[i], keys[j], NULL);
if (g_strcmp0 (key_a, key_b) != 0)
return FALSE;
}
}
return TRUE;
}
gboolean
_nm_keyfile_equals (GKeyFile *kf_a, GKeyFile *kf_b, gboolean consider_order)
{
if (!consider_order) {
return _nm_keyfile_a_contains_all_in_b (kf_a, kf_b)
&& _nm_keyfile_a_contains_all_in_b (kf_b, kf_a);
} else {
return _nm_keyfile_equals_ordered (kf_a, kf_b);
}
}
gboolean
_nm_keyfile_has_values (GKeyFile *keyfile)
{
gs_strfreev char **groups = NULL;
g_return_val_if_fail (keyfile, FALSE);
groups = g_key_file_get_groups (keyfile, NULL);
return groups && groups[0];
}
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