gethostname on System 5 machines

It's definitely correct in 2.4.  I know it was broken in 2.0 and 2.1.
I'm not sure about 2.2.


Here's my quick and dirty test program for those of you who want
to play at home:

#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
 
main(argc, argv)
        int argc;
        char **argv;
{
        struct hostent *ht;
        char gbuf[1500];
 
        if (argc < 2) {
                fprintf(stderr, "not enough args\n");
                exit(1);
        }
        while (--argc) {
                printf("looking up: %s\n", argv[argc]);
                ht = gethostbyname(argv[argc]);
                printf("found, %s\n", ht->h_name);
        }
}