problem in socket programing

[drorl]

hi all.
i'm trying to write a code for a client usuing tcp Protocol.
so far i went by online tutorials.
but i'm stuck at a point when i'm getting a compilation error which i don't understand.
here is the relevant code (the problematic line is marked):

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <netdb.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>


#define BUF_SIZE 256 //size of buffer that will be read writen at each time

void quit(FILE *src, int sockfd, int exitCode){
fclose (src);
shutdown(sockfd, SHUT_RDWR);
close(sockfd);
}

int main(int argc, char **argv){
int sockfd, portNo, status, n;
struct sockaddr_in server_addr;//this struct will hold the server details
struct hostnet *hostInfo;//
char buffer;//this buffer will hold data read from the source file
FILE *src;

if (argc < 3) {//incorrect input
fprintf(stderr,"usage crftp server-port server-hostname filename-to-transfer\n");
exit(1);
}

if ((hostInfo = gethostbyname(argv[2])) == NULL) { // get the host info
herror("error ,in translating the server name to IP adderess\n");
exit(1);
}

if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
perror("error in opening a client socket");
exit (errno);
}




//initializing the struct that will hold the server details
portNo = atoi(argv[1]);
bzero((char *)&server_addr, sizeof(server_addr));
server_addr.sin_family = AF_INET;
server_addr.sin_port = htons(portNo);//converting from host byte order to network byte order
[B] memcpy(&server_addr.sin_addr.s_addr,hostInfo->h_addr_list[0], hostInfo->h_length);


and here is the compilation message:
tcpClient.c:44:Warning:assignment from incompatible pointer type
tcpClient.c:62:error:dereferencing pointer to incomplete type
tcpClient.c:62:error:dereferencing pointer to incomplete type

by the way if anyone knows why is the warning(it refferes the gethostbyname line) it will help too.

thanks a lot
dror](*,)

[shining]

struct hostnet *hostInfo;//


hostnet or hostent ?



struct hostent *gethostbyname(const char *name);


What is hostnet? If it didn't give you any errors, it means it exists?

[drorl]

thanks.
that was realy the problem.
the question is indeed what is hostnet and why did the compiler didn't say something about it?!:-k
dror