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C:/temp/src/j2k/Deprecated/UDP.Unix/receiver.cpp File Reference

#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream.h>

Go to the source code of this file.

Defines
#define	MESSAGE   100
Functions
int	main (int argc, char *argv[])

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Define Documentation

#define MESSAGE   100

Definition at line 9 of file receiver.cpp.

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Function Documentation

int main (  int    argc = 0, char *    argv[] = NULL )

Definition at line 12 of file receiver.cpp. { int MySocket; struct sockaddr_in receiver_addr; struct sockaddr_in sender_addr; unsigned int message_length; char *host; char *message; char buffer[MESSAGE]; unsigned short receiver_port; int received_MessageSize; char* buffer2; receiver_port= atoi(argv[1]); MySocket = socket(AF_INET, SOCK_DGRAM, 0); if(MySocket < 0) { cout<<"socket failed\n"; } cout<<"socket is a success. \n"; memset(&receiver_addr, 0, sizeof(receiver_addr)); receiver_addr.sin_family = AF_INET; receiver_addr.sin_addr.s_addr = htonl(INADDR_ANY); receiver_addr.sin_port = htons(receiver_port); if(bind(MySocket , (struct sockaddr *)&receiver_addr , sizeof(receiver_addr)) < 0) cout<<"binding has failed\n"; cout<<"binding has succeeded\n"; for(;;) { message_length = sizeof(sender_addr); memset( buffer, 0, sizeof(buffer) ); if ((received_MessageSize = recvfrom(MySocket , buffer , MESSAGE ,0, (struct sockaddr *) &sender_addr, &message_length)) < 0) { cout<<"recvfrom() failed\n"; } cout << message_length; cout<<"message has been received \n"; cout<<"THE MESSAGE IS : "<< buffer <<endl; memset( buffer, 0, sizeof(buffer) ); buffer2 = "1234567890"; memcpy( buffer, buffer2, MESSAGE ); int i = 0; for(; i < 14; i++ ) printf("[%d]%c", buffer[i], buffer2[i] ); cout << "done" << endl; if(sendto(MySocket, buffer, MESSAGE, 0, (struct sockaddr *) &sender_addr , sizeof(sender_addr)) != MESSAGE ) cout<<"sendto don't work"<<endl; } }

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