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8d6f425ddd
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239 lines
5.6 KiB
C
239 lines
5.6 KiB
C
/*
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* service.c
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*
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* Copyright (c) 2001-2003 Maksim Yevmenkin <m_evmenkin@yahoo.com>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: service.c,v 1.1 2004/01/13 19:32:36 max Exp $
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* $FreeBSD$
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*/
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#define L2CAP_SOCKET_CHECKED
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#include <bluetooth.h>
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#include <errno.h>
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#include <string.h>
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#include <unistd.h>
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#include <sdp-int.h>
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#include <sdp.h>
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static int32_t sdp_receive_error_pdu(sdp_session_p ss);
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int32_t
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sdp_register_service(void *xss, uint16_t uuid, bdaddr_p const bdaddr,
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uint8_t const *data, uint32_t datalen, uint32_t *handle)
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{
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sdp_session_p ss = (sdp_session_p) xss;
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struct iovec iov[4];
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sdp_pdu_t pdu;
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int32_t len;
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if (ss == NULL)
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return (-1);
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if (bdaddr == NULL || data == NULL ||
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datalen == 0 || !(ss->flags & SDP_SESSION_LOCAL)) {
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ss->error = EINVAL;
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return (-1);
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}
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if (sizeof(pdu)+sizeof(uuid)+sizeof(*bdaddr)+datalen > SDP_LOCAL_MTU) {
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ss->error = EMSGSIZE;
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return (-1);
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}
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pdu.pid = SDP_PDU_SERVICE_REGISTER_REQUEST;
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pdu.tid = htons(++ss->tid);
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pdu.len = htons(sizeof(uuid) + sizeof(*bdaddr) + datalen);
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uuid = htons(uuid);
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iov[0].iov_base = (void *) &pdu;
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iov[0].iov_len = sizeof(pdu);
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iov[1].iov_base = (void *) &uuid;
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iov[1].iov_len = sizeof(uuid);
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iov[2].iov_base = (void *) bdaddr;
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iov[2].iov_len = sizeof(*bdaddr);
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iov[3].iov_base = (void *) data;
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iov[3].iov_len = datalen;
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do {
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len = writev(ss->s, iov, sizeof(iov)/sizeof(iov[0]));
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} while (len < 0 && errno == EINTR);
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if (len < 0) {
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ss->error = errno;
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return (-1);
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}
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len = sdp_receive_error_pdu(ss);
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if (len < 0)
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return (-1);
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if (len != sizeof(pdu) + sizeof(uint16_t) + sizeof(uint32_t)) {
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ss->error = EIO;
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return (-1);
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}
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if (handle != NULL) {
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*handle = (uint32_t) ss->rsp[--len];
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*handle |= (uint32_t) ss->rsp[--len] << 8;
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*handle |= (uint32_t) ss->rsp[--len] << 16;
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*handle |= (uint32_t) ss->rsp[--len] << 24;
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}
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return (0);
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}
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int32_t
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sdp_unregister_service(void *xss, uint32_t handle)
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{
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sdp_session_p ss = (sdp_session_p) xss;
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struct iovec iov[2];
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sdp_pdu_t pdu;
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int32_t len;
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if (ss == NULL)
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return (-1);
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if (!(ss->flags & SDP_SESSION_LOCAL)) {
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ss->error = EINVAL;
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return (-1);
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}
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if (sizeof(pdu) + sizeof(handle) > SDP_LOCAL_MTU) {
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ss->error = EMSGSIZE;
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return (-1);
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}
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pdu.pid = SDP_PDU_SERVICE_UNREGISTER_REQUEST;
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pdu.tid = htons(++ss->tid);
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pdu.len = htons(sizeof(handle));
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handle = htonl(handle);
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iov[0].iov_base = (void *) &pdu;
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iov[0].iov_len = sizeof(pdu);
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iov[1].iov_base = (void *) &handle;
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iov[1].iov_len = sizeof(handle);
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do {
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len = writev(ss->s, iov, sizeof(iov)/sizeof(iov[0]));
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} while (len < 0 && errno == EINTR);
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if (len < 0) {
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ss->error = errno;
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return (-1);
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}
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return ((sdp_receive_error_pdu(ss) < 0)? -1 : 0);
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}
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int32_t
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sdp_change_service(void *xss, uint32_t handle,
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uint8_t const *data, uint32_t datalen)
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{
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sdp_session_p ss = (sdp_session_p) xss;
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struct iovec iov[3];
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sdp_pdu_t pdu;
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int32_t len;
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if (ss == NULL)
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return (-1);
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if (data == NULL || datalen == 0 || !(ss->flags & SDP_SESSION_LOCAL)) {
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ss->error = EINVAL;
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return (-1);
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}
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if (sizeof(pdu) + sizeof(handle) + datalen > SDP_LOCAL_MTU) {
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ss->error = EMSGSIZE;
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return (-1);
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}
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pdu.pid = SDP_PDU_SERVICE_CHANGE_REQUEST;
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pdu.tid = htons(++ss->tid);
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pdu.len = htons(sizeof(handle) + datalen);
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handle = htons(handle);
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iov[0].iov_base = (void *) &pdu;
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iov[0].iov_len = sizeof(pdu);
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iov[1].iov_base = (void *) &handle;
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iov[1].iov_len = sizeof(handle);
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iov[2].iov_base = (void *) data;
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iov[2].iov_len = datalen;
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do {
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len = writev(ss->s, iov, sizeof(iov)/sizeof(iov[0]));
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} while (len < 0 && errno == EINTR);
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if (len < 0) {
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ss->error = errno;
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return (-1);
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}
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return ((sdp_receive_error_pdu(ss) < 0)? -1 : 0);
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}
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static int32_t
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sdp_receive_error_pdu(sdp_session_p ss)
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{
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sdp_pdu_p pdu;
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int32_t len;
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uint16_t error;
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do {
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len = read(ss->s, ss->rsp, ss->rsp_e - ss->rsp);
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} while (len < 0 && errno == EINTR);
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if (len < 0) {
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ss->error = errno;
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return (-1);
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}
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pdu = (sdp_pdu_p) ss->rsp;
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pdu->tid = ntohs(pdu->tid);
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pdu->len = ntohs(pdu->len);
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if (pdu->pid != SDP_PDU_ERROR_RESPONSE || pdu->tid != ss->tid ||
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pdu->len < 2 || pdu->len != len - sizeof(*pdu)) {
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ss->error = EIO;
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return (-1);
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}
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error = (uint16_t) ss->rsp[sizeof(pdu)] << 8;
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error |= (uint16_t) ss->rsp[sizeof(pdu) + 1];
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if (error != 0) {
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ss->error = EIO;
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return (-1);
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}
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return (len);
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}
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