openjpeg/applications/jpip/libopenjpip/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.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "imgsock_manager.h"
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#if _WIN32
#define strncasecmp _strnicmp
#endif
msgtype_t identify_clientmsg( SOCKET connected_socket)
{
int receive_size;
char buf[BUF_LEN];
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static const char *magicid[] = { "JPIP-stream", "PNM request", "XML request",
"TID request", "CID request", "CID destroy", "SIZ request", "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){
fprintf( stderr, "%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)
{
char buf[BUF_LEN], versionstring[] = "version 1.2";
int linelen, datalen;
Byte_t *jpipstream;
*target = *cid = *tid = NULL;
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")){
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/* register cid option*/
*target = strdup( buf);
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
if( strcmp( buf, "0") != 0)
*tid = strdup( buf);
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
if( strcmp( buf, "0") != 0)
*cid = strdup( buf);
if((linelen = receive_line( connected_socket, buf)) == 0)
return NULL;
}
datalen = atoi( buf);
fprintf( stderr, "Receive Data: %d Bytes\n", datalen);
jpipstream = receive_stream( connected_socket, datalen);
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/* check EOR*/
if( jpipstream[datalen-3] == 0x00 && ( jpipstream[datalen-2] == 0x01 || jpipstream[datalen-2] == 0x02))
*streamlen = datalen -3;
else
*streamlen = datalen;
return jpipstream;
}
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);
}
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void send_IDstream( SOCKET connected_socket, char *id, int idlen, const 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");
}
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void send_IDstream( SOCKET connected_socket, char *id, int idlen, const 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_SIZstream( SOCKET connected_socket, unsigned int width, unsigned int height)
{
Byte_t responce[9];
responce[0] = 'S';
responce[1] = 'I';
responce[2] = 'Z';
responce[3] = (width >> 16) & 0xff;
responce[4] = (width >> 8) & 0xff;
responce[5] = width & 0xff;
responce[6] = (height >> 16) & 0xff;
responce[7] = (height >> 8) & 0xff;
responce[8] = height & 0xff;
send_stream( connected_socket, responce, 9);
}
void response_signal( SOCKET connected_socket, bool succeed)
{
Byte_t code;
if( succeed)
code = 1;
else
code = 0;
send_stream( connected_socket, &code, 1);
}