simple hello world SERVER/CLIENT
im trying to send the string "hello world"
from one program to the other - via loopback
but the client is printing garbage...
please help!
ps: conio.h and getch() are just to hold the window open in borland compiler
CLIENT
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include<winsock.h>
#include<conio.h>
#define MAXRCVLEN 500
#define PORTNUM 2343
int main(int argc, char *argv[])
{
char buffer[MAXRCVLEN + 1]; /* +1 so we can add null terminator */
int len, mysocket;
struct sockaddr_in dest;
mysocket = socket(AF_INET, SOCK_STREAM, 0);
memset(&dest, 0, sizeof(dest)); /* zero the struct */
dest.sin_family = AF_INET;
dest.sin_addr.s_addr = inet_addr("127.0.0.1"); /* set destination IP number */
dest.sin_port = htons(PORTNUM); /* set destination port number */
connect(mysocket, (struct sockaddr *)&dest, sizeof(struct sockaddr));
len = recv(mysocket, buffer, MAXRCVLEN, 0);
/* We have to null terminate the received data ourselves */
buffer[len] = '\0';
printf("Received %s (%d bytes).\n", buffer, len);
closesocket(mysocket);
getch();
return EXIT_SUCCESS;
}
SERVER
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include<winsock.h>
#define PORTNUM 2343
int main(int argc, char *argv[])
{
char msg[15] = "Hello World !\n";
struct sockaddr_in dest; /* socket info about the machine connecting to us */
struct sockaddr_in serv; /* socket info about our server */
int mysocket; /* socket used to listen for incoming connections */
int socksize = sizeof(struct sockaddr_in);
memset(&dest, 0, sizeof(dest)); /* zero the struct before filling the fields */
serv.sin_family = AF_INET; /* set the type of connection to TCP/IP */
serv.sin_addr.s_addr = INADDR_ANY; /* set our address to any interface */
serv.sin_port = htons(PORTNUM); /* set the server port number */
mysocket = socket(AF_INET, SOCK_STREAM, 0);
/* bind serv information to mysocket */
bind(mysocket, (struct sockaddr *)&serv, sizeof(struct sockaddr));
/* start listening, allowing a queue of up to 1 pending connection */
listen(mysocket, 1);
int consocket = accept(mysocket, (struct sockaddr *)&dest, &socksize);
while(consocket)
{
printf("Incoming connection from %s - sending welcome\n", inet_ntoa(dest.sin_addr));
send(consocket, msg, strlen(msg), 0);
}
closesocket(consocket);
closesocket(mysocket);
return EXIT_SUCCESS;
}
