mirror of git://git.sysmocom.de/ofono
158 lines
3.2 KiB
C
158 lines
3.2 KiB
C
/*
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*
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* oFono - Open Source Telephony
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*
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* Copyright (C) 2009-2010 Nokia Corporation and/or its subsidiary(-ies).
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <arpa/inet.h>
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#include <glib.h>
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#include "message.h"
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int g_isi_msg_version_major(const GIsiMessage *msg)
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{
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if (msg == NULL || msg->version == NULL)
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return -1;
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return msg->version->major;
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}
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int g_isi_msg_version_minor(const GIsiMessage *msg)
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{
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if (msg == NULL || msg->version == NULL)
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return -1;
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return msg->version->minor;
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}
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int g_isi_msg_error(const GIsiMessage *msg)
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{
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return msg != NULL ? -msg->error : -EINVAL;
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}
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const char *g_isi_msg_strerror(const GIsiMessage *msg)
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{
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return strerror(-g_isi_msg_error(msg));
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}
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uint8_t g_isi_msg_resource(const GIsiMessage *msg)
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{
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if (msg == NULL || msg->addr == NULL)
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return 0;
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return msg->addr->spn_resource;
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}
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uint16_t g_isi_msg_object(const GIsiMessage *msg)
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{
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if (msg == NULL || msg->addr == NULL)
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return 0;
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return (msg->addr->spn_dev << 8) | msg->addr->spn_obj;
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}
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uint8_t g_isi_msg_id(const GIsiMessage *msg)
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{
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const uint8_t *buf;
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if (msg == NULL || msg->data == NULL || msg->len < 2)
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return 0;
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buf = msg->data;
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return buf[1];
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}
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uint8_t g_isi_msg_utid(const GIsiMessage *msg)
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{
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const uint8_t *buf;
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if (msg == NULL || msg->data == NULL || msg->len < 2)
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return 0;
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buf = msg->data;
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return buf[0];
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}
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size_t g_isi_msg_data_len(const GIsiMessage *msg)
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{
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if (msg == NULL || msg->data == NULL)
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return 0;
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return msg->len - 2;
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}
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const void *g_isi_msg_data(const GIsiMessage *msg)
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{
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if (msg == NULL || msg->data == NULL)
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return NULL;
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return (void *)msg->data + 2;
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}
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gboolean g_isi_msg_data_get_byte(const GIsiMessage *msg, unsigned offset,
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uint8_t *byte)
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{
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const uint8_t *buf = g_isi_msg_data(msg);
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if (buf == NULL || g_isi_msg_data_len(msg) < offset)
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return FALSE;
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if (byte != NULL)
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*byte = buf[offset];
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return TRUE;
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}
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gboolean g_isi_msg_data_get_word(const GIsiMessage *msg, unsigned offset,
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uint16_t *word)
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{
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const uint8_t *buf = g_isi_msg_data(msg);
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uint16_t val;
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if (buf == NULL || g_isi_msg_data_len(msg) < offset + 1)
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return FALSE;
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memcpy(&val, buf + offset, sizeof(uint16_t));
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if (word != NULL)
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*word = ntohs(val);
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return TRUE;
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}
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gboolean g_isi_msg_data_get_struct(const GIsiMessage *msg, unsigned offset,
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const void **type, size_t len)
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{
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if (g_isi_msg_data_len(msg) < offset + len)
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return FALSE;
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if (type != NULL)
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*type = g_isi_msg_data(msg) + offset;
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return TRUE;
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}
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