Return to tcp.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / sys / nfs / TEST / unix-tests / tools

Annotation of 43BSDReno/sys/nfs/TEST/unix-tests/tools/tcp.c, revision 1.1.1.1

1.1       root        1: /*     @(#)tcp.c       1.1 88/10/12 NFS Rev 2 Testsuite        */
                      2: /*
                      3:  *  client for simple tcp ping program.
                      4:  *  open connection with server, who will echo request back.
                      5:  */
                      6: #define TCP_PORT        3456
                      7: 
                      8: #include <stdio.h>
                      9: #include <sys/types.h>
                     10: #include <sys/socket.h>
                     11: #include <netinet/in.h>
                     12: #include <netdb.h>
                     13: 
                     14: main(argc, argv)
                     15: char **argv;
                     16: {
                     17:        int s, len, ret;
                     18:         struct sockaddr_in addr;        /* socket address */
                     19:         int addrlen = sizeof(struct sockaddr_in);
                     20:        struct hostent *hp;
                     21:        char *peer;
                     22:        char buf[BUFSIZ];
                     23:        char *msg = "This is a test message!";
                     24: 
                     25:        if (argc != 2) {
                     26:                fprintf(stderr, "usage: %s hostname\n", argv[0]);
                     27:                exit(1);
                     28:        }
                     29:        peer = argv[1];
                     30: 
                     31:        if ((hp = gethostbyname(peer)) == NULL) {
                     32:                fprintf(stderr, "Can't find host %s\n", peer);
                     33:                exit(1);
                     34:        }
                     35: 
                     36:         if ((s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
                     37:                 xxit("socket");
                     38:        addr.sin_family = AF_INET;
                     39:        addr.sin_port = htons(TCP_PORT);
                     40:        addr.sin_addr = *(struct in_addr *)hp->h_addr;
                     41:        fprintf(stderr, "Connecting to %s (%x)\n", peer, 
                     42:                        addr.sin_addr.s_addr);
                     43:        if (connect(s, &addr, addrlen) < 0)
                     44:                xxit("connect");
                     45: 
                     46:        strcpy(buf, msg);
                     47:        len = strlen(buf);
                     48: 
                     49:        ret = write(s, buf, len);
                     50:        fprintf(stderr, " write ret %d (len %d)\n", ret, len);
                     51:        ret = read(s, buf, BUFSIZ);
                     52:        fprintf(stderr, " read ret %d\n", ret);
                     53: 
                     54:        if (ret != len || *buf != *msg + 1 || strcmp(buf+1, msg+1))
                     55:                fprintf(stderr, "Message error: sent '%s' recv '%s'\n",
                     56:                        msg, buf);
                     57:        else
                     58:                fprintf(stderr, "tcp ping to %s ok\n", peer);
                     59: }
                     60: 
                     61: xxit(s)
                     62: char *s;
                     63: {
                     64:        perror(s);
                     65:        exit(1);
                     66: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.