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/*
* dLeyna
*
* Copyright (C) 2012-2017 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU Lesser General Public License,
* version 2.1, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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 program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
*
* Mark Ryan <mark.d.ryan@intel.com>
*
*/
#include <stdio.h>
#include <string.h>
#include <libdleyna/core/error.h>
#include "path.h"
#include "server.h"
gboolean dls_path_get_non_root_id(const gchar *object_path,
const gchar **slash_before_id)
{
gboolean retval = FALSE;
unsigned int offset = strlen(DLEYNA_SERVER_PATH) + 1;
if (!g_str_has_prefix(object_path, DLEYNA_SERVER_PATH "/"))
goto on_error;
if (!object_path[offset])
goto on_error;
*slash_before_id = strchr(&object_path[offset], '/');
retval = TRUE;
on_error:
return retval;
}
static gchar *prv_object_name_to_id(const gchar *object_name)
{
gchar *retval = NULL;
unsigned int object_len = strlen(object_name);
unsigned int i;
gint hex;
gchar byte;
if (object_len & 1)
goto on_error;
retval = g_malloc((object_len >> 1) + 1);
for (i = 0; i < object_len; i += 2) {
hex = g_ascii_xdigit_value(object_name[i]);
if (hex == -1)
goto on_error;
byte = hex << 4;
hex = g_ascii_xdigit_value(object_name[i + 1]);
if (hex == -1)
goto on_error;
byte |= hex;
retval[i >> 1] = byte;
}
retval[i >> 1] = 0;
return retval;
on_error:
g_free(retval);
return NULL;
}
gboolean dls_path_get_path_and_id(const gchar *object_path, gchar **root_path,
gchar **id, GError **error)
{
const gchar *slash;
gchar *coded_id;
if (!dls_path_get_non_root_id(object_path, &slash))
goto on_error;
if (!slash) {
*root_path = g_strdup(object_path);
*id = g_strdup("0");
} else {
if (!slash[1])
goto on_error;
coded_id = prv_object_name_to_id(slash + 1);
if (!coded_id)
goto on_error;
*root_path = g_strndup(object_path, slash - object_path);
*id = coded_id;
}
return TRUE;
on_error:
if (error)
*error = g_error_new(DLEYNA_SERVER_ERROR, DLEYNA_ERROR_BAD_PATH,
"object path is badly formed.");
return FALSE;
}
static gchar *prv_id_to_object_name(const gchar *id)
{
gchar *retval;
unsigned int i;
unsigned int data_len = strlen(id);
retval = g_malloc((data_len << 1) + 1);
retval[0] = 0;
for (i = 0; i < data_len; i++)
sprintf(&retval[i << 1], "%0x", (guint8) id[i]);
return retval;
}
gchar *dls_path_from_id(const gchar *root_path, const gchar *id)
{
gchar *coded_id;
gchar *path;
if (!strcmp(id, "0")) {
path = g_strdup(root_path);
} else {
coded_id = prv_id_to_object_name(id);
path = g_strdup_printf("%s/%s", root_path, coded_id);
g_free(coded_id);
}
return path;
}
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