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keyfile: fix two bugs for updating/writting a keyfile

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* When a connection name (ID) was changed via nm-connection-editor, a new file
  path was created, but the old one was not removed. That resulted in two files
  and in turn in duplicated connections.
* When two connections with the same name (ID) were present, e.g. files ABC and
  ABC-70656842-98ac-4221-aa8b-0d4174770, and nm-connection-editor was used to
  edit ABC-70656842-98ac-4221-aa8b-0d4174770, the operation failed.
This commit is contained in:
Jiří Klimeš 2011-09-12 18:41:59 +02:00
parent b4892510b5
commit f3d4cd385e
1 changed files with 18 additions and 6 deletions
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24
src/settings/plugins/keyfile/writer.c
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@ -993,15 +993,27 @@ _internal_write_connection (NMConnection *connection,
path = g_strdup_printf ("%s/%s-%s", keyfile_dir, filename, nm_connection_get_uuid (connection));
if (g_file_test (path, G_FILE_TEST_EXISTS)) {
/* Hmm, this is odd. Give up. */
g_set_error (error, KEYFILE_PLUGIN_ERROR, 0,
"%s.%d: could not find suitable keyfile file name (%s already used)",
__FILE__, __LINE__, path);
g_free (path);
goto out;
if (existing_path == NULL || g_strcmp0 (path, existing_path) != 0) {
/* This should not happen. But, it actually occurs when
* two connections have the same UUID, and one of the connections
* is edited to contain the same ID as the other one.
* Give up.
*/
g_set_error (error, KEYFILE_PLUGIN_ERROR, 0,
"%s.%d: could not find suitable keyfile file name (%s already used)",
__FILE__, __LINE__, path);
g_free (path);
goto out;
}
}
}
/* In case of updating the connection and changing the file path,
* we need to remove the old one, not to end up with two connections.
*/
if (existing_path != NULL && strcmp (path, existing_path) != 0)
unlink (existing_path);
g_file_set_contents (path, data, len, error);
if (chown (path, owner_uid, owner_grp) < 0) {
g_set_error (error, KEYFILE_PLUGIN_ERROR, 0,