Problem with client server program...
Hi Guys... I am trying to run client server program, but the server program is giving me problem... after the client connects to it.. it says Illegal instruction and logs out... i am relatively new to this.. so please bare with me.. i have done lot of research on net, could not find anything that was useful to me... please bail me out!!!!! :-(
Server program
Code:
#include<stdio.h>
#include<string.h>
#include<sys/types.h>
#include<errno.h>
#include<sys/socket.h>
#include<netdb.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<stdlib.h>
#include<unistd.h>
#define PORT 6090
int main()
{
int client_lenght;
struct sockaddr_in client,server;
struct hostent *ptrh;
int sd,sd2;
char message[50];
int len;
memset((char *)&server,0,sizeof(server));
server.sin_family=AF_INET;
server.sin_addr.s_addr=INADDR_ANY;
server.sin_port = htons(PORT);
sd = socket(AF_INET,SOCK_STREAM,0);
if(sd<0)
{
fprintf(stderr,"cannot create socket\n");
exit(1);
}
if(bind(sd,(struct sockaddr *)&server, sizeof(server))<0)
{
fprintf(stderr,"bind failed\n");
exit(1);
}
listen(sd,5);
while(1)
{
len = sizeof(client);
if((sd2=accept(sd,(struct sockaddr *)&client, &len))<0)
{
fprintf(stderr,"Accept failed\n");
exit(1);
}
printf("Waiting for message from client\n");
recv(sd2,message,sizeof(message),0);
printf("Meesage is %s\n",message);
close(sd2);
}
return 0;
}
Client Program
Code:
#include<stdio.h>
#include<string.h>
#include<sys/types.h>
#include<errno.h>
#include<sys/socket.h>
#include<netdb.h>
#include<netinet/in.h>
#include<arpa/inet.h>
#include<stdlib.h>
#include<unistd.h>
#define PORT 6090
int main()
{
int client_lenght;
struct sockaddr_in client,server;
struct hostent *ptrh;
int sd;
char message[50];
memset((char *)&server,0,sizeof(server));
memset((char *)&client,0,sizeof(client));
server.sin_family = AF_INET;
/*
ptrh = gethostbyname(host);
if(((char *)ptrh)==NULL)
{
fprintf(stderr,"invalid host: %s\n", host);
exit(1);
}
memcpy(&server.sin_addr,ptrh->h_addr,ptrh->h_length);*/
server.sin_addr.s_addr=INADDR_ANY;
server.sin_port = htons(PORT);
if ((sd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
{
fprintf(stderr,"Cannot create socket\n");
exit(1);
}
if(connect(sd,(struct sockaddr *)&server, sizeof(server))<0)
{
fprintf(stderr, "connect failed\n");
exit(1);
}
printf("Enter the message to be sent to server: ");
scanf("%s",&message);
send(sd, message,50,0);
fflush(stdout);
/* Closing the socket*/
close(sd);
}
Any help is appreciated........
