openjpeg/applications/jpip/opj_client/opj_dec_server/imgsock_manager.c

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/*
* $Id: imgsock_manager.c 54 2011-05-10 13:22:47Z kaori $
*
* Copyright (c) 2002-2011, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
* Copyright (c) 2002-2011, Professor Benoit Macq
* Copyright (c) 2010-2011, Kaori Hagihara
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef _WIN32
#include <windows.h>
#define strcasecmp _stricmp
#else
#include <strings.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/param.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#endif
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include "imgsock_manager.h"
#define BUF_LEN 256
SOCKET open_listeningsocket()
{
SOCKET listening_socket;
struct sockaddr_in sin;
int sock_optval = 1;
int port = 5000;
listening_socket = socket(AF_INET, SOCK_STREAM, 0);
if ( listening_socket == -1 ){
perror("socket");
exit(1);
}
if ( setsockopt(listening_socket, SOL_SOCKET, SO_REUSEADDR,
&sock_optval, sizeof(sock_optval)) == -1 ){
perror("setsockopt");
exit(1);
}
memset(&sin, 0, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_port = htons(port);
sin.sin_addr.s_addr = htonl(INADDR_ANY);
if ( bind(listening_socket, (struct sockaddr *)&sin, sizeof(sin)) < 0 ){
perror("bind");
closesocket(listening_socket);
exit(1);
}
if( listen(listening_socket, SOMAXCONN) == -1){
perror("listen");
closesocket(listening_socket);
exit(1);
}
printf("port %d is listened\n", port);
return listening_socket;
}
msgtype_t identify_clientmsg( SOCKET connected_socket)
{
int receive_size;
char buf[BUF_LEN];
char *magicid[] = { "JPIP-stream", "PNM request", "XML request", "TID request", "CID request", "CID destroy", "JP2 save", "QUIT"};
int i;
receive_size = receive_line( connected_socket, buf);
if( receive_size == 0){
fprintf( stderr, "Error to receive the header of client message\n");
return MSGERROR;
}
for( i=0; i<NUM_OF_MSGTYPES; i++){
if( strncasecmp( magicid[i], buf, strlen(magicid[i])) == 0){
printf("%s\n", magicid[i]);
return i;
}
}
fprintf( stderr, "Cannot identify client message type %s\n", buf);
return MSGERROR;
}
Byte_t * receive_JPIPstream( SOCKET connected_socket, char *target, char *tid, char *cid, int *streamlen)
{
Byte_t *jpipstream=NULL, *ptr;
char buf[BUF_LEN], versionstring[] = "version 1.2";
int linelen, redlen, remlen;
target[0] = 0;
cid[0] = 0;
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
if( strncmp( versionstring, buf, strlen(versionstring))!=0){
fprintf( stderr, "Wrong format\n");
return NULL;
}
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
if( strstr( buf, "jp2")){
// register cid option
strcpy( target, buf);
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
strcpy( tid, buf);
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
strcpy( cid, buf);
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
}
*streamlen = atoi( buf);
fprintf( stderr, "Receive Data: %d Bytes\n", *streamlen);
jpipstream = (unsigned char *)malloc( (*streamlen));
ptr = jpipstream;
remlen = (*streamlen);
while( remlen > 0){
redlen = recv( connected_socket, ptr, remlen, 0);
if( redlen == -1){
fprintf( stderr, "receive JPT- JPP- stream error\n");
break;
}
remlen -= redlen;
ptr = ptr + redlen;
}
return jpipstream;
}
void send_stream( SOCKET connected_socket, void *stream, int length);
void send_XMLstream( SOCKET connected_socket, Byte_t *xmlstream, int length)
{
Byte_t header[5];
header[0] = 'X';
header[1] = 'M';
header[2] = 'L';
header[3] = (length >> 8) & 0xff;
header[4] = length & 0xff;
send_stream( connected_socket, header, 5);
send_stream( connected_socket, xmlstream, length);
}
void send_IDstream( SOCKET connected_socket, char *id, int idlen, char *label);
void send_CIDstream( SOCKET connected_socket, char *cid, int cidlen)
{
send_IDstream( connected_socket, cid, cidlen, "CID");
}
void send_TIDstream( SOCKET connected_socket, char *tid, int tidlen)
{
send_IDstream( connected_socket, tid, tidlen, "TID");
}
void send_IDstream( SOCKET connected_socket, char *id, int idlen, char *label)
{
Byte_t header[4];
header[0] = label[0];
header[1] = label[1];
header[2] = label[2];
header[3] = idlen & 0xff;
send_stream( connected_socket, header, 4);
send_stream( connected_socket, id, idlen);
}
void send_PNMstream( SOCKET connected_socket, Byte_t *pnmstream, unsigned int width, unsigned int height, unsigned int numofcomp, Byte_t maxval)
{
int pnmlen = 0;
Byte_t header[7];
pnmlen = width*height*numofcomp;
header[0] = 'P';
header[1] = numofcomp==3 ? 6:5;
header[2] = (width >> 8) & 0xff;
header[3] = width & 0xff;
header[4] = (height >> 8) & 0xff;
header[5] = height & 0xff;
header[6] = maxval;
send_stream( connected_socket, header, 7);
send_stream( connected_socket, pnmstream, pnmlen);
}
void send_stream( SOCKET connected_socket, void *stream, int length)
{
void *ptr = stream;
int remlen = length;
while( remlen > 0){
int sentlen = send( connected_socket, ptr, remlen, 0);
if( sentlen == -1){
fprintf( stderr, "sending stream error\n");
break;
}
remlen = remlen - sentlen;
ptr = ptr + sentlen;
}
}
int receive_line(SOCKET connected_socket, char *p)
{
int len = 0;
while (1){
int ret;
ret = recv( connected_socket, p, 1, 0);
if ( ret == -1 ){
perror("receive");
exit(1);
} else if ( ret == 0 ){
break;
}
if ( *p == '\n' )
break;
p++;
len++;
}
*p = '\0';
if( len == 0)
fprintf( stderr, "Header receive error\n");
return len;
}
void response_signal( SOCKET connected_socket, bool succeed)
{
Byte_t code;
if( succeed)
code = 1;
else
code = 0;
if( send( connected_socket, &code, 1, 0) != 1)
fprintf( stderr, "Response signalling error\n");
}