haviong trouble in C with IRC.

i am trying to make a small VERY VERY basic IRC client…… it is console based and i am trying to get it to send() and recv()…..i get the the first send and the first recv…..but the then it stops and when i press return it says segmentation fault……i don't know why. I use memset to free the msg and buf arrays…..but it doesnt do any good. Here is my source.

––––––––––––––––––––––irc.c–––––––––––––––––––––––––––––––––– #include "prog.h" #include <string.h> #include <stdio.h> #include <stdlib.h> #include <errno.h>

int main(int argc, char *argv[]) { int sockfd, data; char buf[30000]; char *name, *msg; struct hostent *host; struct sockaddr_in addr;

    name= argv[2];
    if(argc < 2)
    {
            printf("Usage: irc [server_hostname]\n");
            exit(1);
    }

    if((host = gethostbyname(argv[1])) == NULL)
    {
            printf("ERROR: could not resolve host\n");
            exit(1);
    }

    if((sockfd = socket(PF_INET, SOCK_STREAM, 0)) == -1)
    {
            printf("ERROR: could not connect to server\n");
            exit(1);
    }

    addr.sin_family = AF_INET;
    addr.sin_port = htons(IRC_PORT);
    addr.sin_addr = *((struct in_addr *)host->h_addr);
    memset(addr.sin_zero, '\0', sizeof addr.sin_zero);

    if(connect(sockfd, (struct sockaddr *)&addr, sizeof addr) == -1)
    {
            printf("ERROR: could not connect()");
            exit(1);
    }

    send(sockfd, ("/nick %s",name), MAXDATASIZE-1, 0);
    while(msg != "exit")
    {

    printf("Welcome to %s\n\n",argv[1]);

    scanf("|>: %s", msg);
    send(sockfd, msg, sizeof(msg-1), 0);
    memset(msg, 0, sizeof msg);

    recv(sockfd, buf, MAXDATASIZE-1, 0);
    printf("%s",buf);
    memset(buf, 0, sizeof buf);
    }
            close(sockfd);

    return 0;

}

I'm not a C++ programmer, but shouldn't you be having a loop or something? Cause now you are just running the entire thing ONCE.

there is a loop……while( msg != "exit" );