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/*
INI LIBRARY
Functions to process metadata.
Copyright (C) Dmitri Pal <dpal@redhat.com> 2010
INI 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.
INI 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 INI Library. If not, see <http://www.gnu.org/licenses/>.
*/
#define _GNU_SOURCE
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include "config.h"
#include "collection.h"
#include "collection_tools.h"
#include "trace.h"
#include "ini_config.h"
#include "ini_metadata.h"
#define INI_METADATA "meta"
/* Prepare metadata */
int prepare_metadata(uint32_t metaflags,
struct collection_item **metadata,
int *save_error)
{
int error = EOK;
struct collection_item *metasec = NULL;
TRACE_FLOW_STRING("prepare_metadata", "Entry");
/* Are we supposed to collect or process meta data ? */
if (!metadata) {
TRACE_FLOW_STRING("No meta data", "Exit");
return EOK;
}
/* Allocate metadata */
error = col_create_collection(metadata,
INI_METADATA,
COL_CLASS_INI_META);
if (error) {
TRACE_ERROR_NUMBER("Failed to create meta data", error);
return error;
}
/* Check and create section for file error if needed */
if (metaflags & INI_META_SEC_ERROR_FLAG) {
/* Create ERROR collection */
if ((error = col_create_collection(&metasec,
INI_META_SEC_ERROR,
COL_CLASS_INI_SECTION)) ||
(error = col_add_collection_to_collection(
*metadata,
NULL,
NULL,
metasec,
COL_ADD_MODE_REFERENCE))) {
TRACE_ERROR_NUMBER("Failed to create error section", error);
col_destroy_collection(metasec);
col_destroy_collection(*metadata);
return error;
}
/* If we are here we would have to save file open error */
*save_error = 1;
col_destroy_collection(metasec);
}
TRACE_FLOW_STRING("prepare_metadata", "Exit");
return error;
}
/* Collect metadata for the file */
int collect_metadata(uint32_t metaflags,
struct collection_item **metadata,
FILE *config_file,
const char *config_filename)
{
int error = EOK;
struct collection_item *metasec = NULL;
int filedes;
struct stat file_stats;
TRACE_FLOW_STRING("collect_metadata", "Entry");
/* Check and create section for file error if needed */
if (metaflags & INI_META_SEC_ACCESS_FLAG) {
/* Create ACCESS collection */
error = col_create_collection(&metasec,
INI_META_SEC_ACCESS,
COL_CLASS_INI_SECTION);
if (error) {
TRACE_ERROR_NUMBER("Failed to create access section.", error);
col_destroy_collection(metasec);
return error;
}
filedes = fileno(config_file);
/* Collect statistics */
errno = 0;
if (fstat(filedes, &file_stats) < 0) {
error = errno;
TRACE_ERROR_NUMBER("Failed to get statistics.", error);
col_destroy_collection(metasec);
return error;
}
/* Record statistics */
/* UID */
error = col_add_int_property(metasec,
NULL,
INI_META_KEY_UID,
file_stats.st_uid);
if (error) {
TRACE_ERROR_NUMBER("Failed to save uid", error);
col_destroy_collection(metasec);
return error;
}
/* GID */
error = col_add_int_property(metasec,
NULL,
INI_META_KEY_GID,
file_stats.st_gid);
if (error) {
TRACE_ERROR_NUMBER("Failed to save gid", error);
col_destroy_collection(metasec);
return error;
}
/* PERMISSIONS */
error = col_add_unsigned_property(metasec,
NULL,
INI_META_KEY_PERM,
file_stats.st_mode);
if (error) {
TRACE_ERROR_NUMBER("Failed to save permissions", error);
col_destroy_collection(metasec);
return error;
}
/* Modification time stamp */
error = col_add_int_property(metasec,
NULL,
INI_META_KEY_MODIFIED,
file_stats.st_mtime);
if (error) {
TRACE_ERROR_NUMBER("Failed to save modification time", error);
col_destroy_collection(metasec);
return error;
}
/* Name */
error = col_add_str_property(metasec,
NULL,
INI_META_KEY_NAME,
config_filename,
0);
if (error) {
TRACE_ERROR_NUMBER("Failed to save file name", error);
col_destroy_collection(metasec);
return error;
}
/* Device ID */
error = col_add_int_property(metasec,
NULL,
INI_META_KEY_DEV,
file_stats.st_dev);
if (error) {
TRACE_ERROR_NUMBER("Failed to save inode", error);
col_destroy_collection(metasec);
return error;
}
/* i-node */
error = col_add_int_property(metasec,
NULL,
INI_META_KEY_INODE,
file_stats.st_ino);
if (error) {
TRACE_ERROR_NUMBER("Failed to save inode", error);
col_destroy_collection(metasec);
return error;
}
/* Add section to metadata */
error = col_add_collection_to_collection(
*metadata,
NULL,
NULL,
metasec,
COL_ADD_MODE_REFERENCE);
col_destroy_collection(metasec);
if (error) {
TRACE_ERROR_NUMBER("Failed to save file name", error);
return error;
}
}
TRACE_FLOW_STRING("collect_metadata", "Exit");
return error;
}
/* Function to free metadata */
void free_ini_config_metadata(struct collection_item *metadata)
{
TRACE_FLOW_STRING("free_ini_config_metadata", "Entry");
col_destroy_collection(metadata);
TRACE_FLOW_STRING("free_ini_config_metadata", "Exit");
}
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