Very Computer

I am trying to figure out sockets.  I copied this code out of a book to
see if I could get it to work.  However when bind() is called bind returns
a -1 indicating an error, what am I (or the book rather) is doing wrong?

The code follows:
#include <sys/types.h>
#include <sys/socket.h>

main()
{
        int sd,ns;
        char buf[256];
        struct sockaddr sockaddr;
        int fromlen;

        if((sd=socket(AF_UNIX,SOCK_STREAM,0)) == -1)
        {
                puts("socket() returned an error.");
                exit();
        }
        printf("the value of sd is %d \n",sd);        

        /*bind name - don't include null char in the name*/

        printf("bind:%d\n",bind(sd,"sockname",sizeof("sockname")-1));
        listen(sd,1);

        for(;;)
        {
                ns=accept(sd,&sockaddr,&fromlen);
                if(ns== -1)
                {
                        printf("ns is -1\n");
                        exit();
                }

                else
                {
                if(fork()==0)
                {
                        /*child*/
                        close(sd);
                        read(ns,buf,sizeof(buf));
                        printf("server read '%s'\n",buf);
                        exit(0);
                }
                close(ns);
                }
        }

Quote:}

Any suggestions?
--

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   (=)         (_ -|- -|- is the         mind; its teaching should,
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Quote:>    printf("bind:%d\n",bind(sd,"sockname",sizeof("sockname")-1));