storage size of 'sin' isn't known

[mariab]

hi,

i'm having the problem with my first socket program...i have been staring at it for an hour but i cant find whats wrong with it...can u check it out pls?

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
 
int main(){
 
 
    struct hostent *phe;
    struct sockaddr_in sin; //here is the problem!!!!!
    char *host;
    int s, rc, type;
 
    host = "tombaker.cis.um.edu.mt";
    //memset(&sin, 0, sizeof(sin));
 
    sin.sin_family = AF_INET;
    sin.sin_port = 7; //ECHO service
    sin.sin_addr = inet_makeaddr(
            inet_network("193.188.43.36"),
            inet_addr("193.188.43.36"));
    s= socket(PF_INET, SOCK_STREAM, 0);
    rc = connect(s, (struct sockaddr *)&sin, sizof(sin));
    if (rc != 0)
     printf("failed");
    else (printf("connected"));
 
}

[gpraghuram]

In which OS you are doing this?
Becos the sockaddr_in is definde in different header file and you are missing that inclusion


Raghu

[azzmosphere]

Hi I had a look at the program, are you using LINIX?

if so try:
#include <netinet/in.h>

I believe you would probably find a few more errors downstream though

[azzmosphere]

I have been looking at the code but can't seem to get:

sin.sin_addr = inet_makeaddr(
inet_network("193.188.43.36"),
inet_addr("193.188.43.36"));

line working. Don't know what is wrong here it looks correct? How did you go after you added the include file is it working on your system?