The Tor Browser: nsprpub/pr/tests/ntoh.c@ca08bd8f51b2

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 /*

     7  * A test program for PR_htons, PR_ntohs, PR_htonl, PR_ntohl,

     8  * PR_htonll, and PR_ntohll.

     9  */

    11 #include "prnetdb.h"

    13 #include <stdio.h>

    14 #include <string.h>

    15 #include <stdlib.h>

    17 /* Byte sequence in network byte order */

    18 static unsigned char bytes_n[8] = { 1, 2, 3, 4, 5, 6, 7, 8 };

    20 /* Integers in host byte order */

    21 static PRUint16 s_h = 0x0102;

    22 static PRUint32 l_h = 0x01020304;

    23 static PRUint64 ll_h = LL_INIT(0x01020304, 0x05060708);

    25 int main(int argc, char **argv)

    26 {

    27     union {

    28         PRUint16 s;

    29         PRUint32 l;

    30         PRUint64 ll;

    31         unsigned char bytes[8];

    32     } un;

    34     un.s = s_h;

    35     printf("%u %u\n",

    36         un.bytes[0], un.bytes[1]);

    37     un.s = PR_htons(un.s);

    38     printf("%u %u\n",

    39         un.bytes[0], un.bytes[1]);

    40     if (memcmp(un.bytes, bytes_n, 2)) {

    41         fprintf(stderr, "PR_htons failed\n");

    42         exit(1);

    43     }

    44     un.s = PR_ntohs(un.s);

    45     printf("%u %u\n",

    46         un.bytes[0], un.bytes[1]);

    47     if (un.s != s_h) {

    48         fprintf(stderr, "PR_ntohs failed\n");

    49         exit(1);

    50     }

    52     un.l = l_h;

    53     printf("%u %u %u %u\n",

    54         un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3]);

    55     un.l = PR_htonl(un.l);

    56     printf("%u %u %u %u\n",

    57         un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3]);

    58     if (memcmp(un.bytes, bytes_n, 4)) {

    59         fprintf(stderr, "PR_htonl failed\n");

    60         exit(1);

    61     }

    62     un.l = PR_ntohl(un.l);

    63     printf("%u %u %u %u\n",

    64         un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3]);

    65     if (un.l != l_h) {

    66         fprintf(stderr, "PR_ntohl failed\n");

    67         exit(1);

    68     }

    70     un.ll = ll_h;

    71     printf("%u %u %u %u %u %u %u %u\n",

    72         un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3],

    73         un.bytes[4], un.bytes[5], un.bytes[6], un.bytes[7]);

    74     un.ll = PR_htonll(un.ll);

    75     printf("%u %u %u %u %u %u %u %u\n",

    76         un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3],

    77         un.bytes[4], un.bytes[5], un.bytes[6], un.bytes[7]);

    78     if (memcmp(un.bytes, bytes_n, 8)) {

    79         fprintf(stderr, "PR_htonll failed\n");

    80         exit(1);

    81     }

    82     un.ll = PR_ntohll(un.ll);

    83     printf("%u %u %u %u %u %u %u %u\n",

    84         un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3],

    85         un.bytes[4], un.bytes[5], un.bytes[6], un.bytes[7]);

    86     if (LL_NE(un.ll, ll_h)) {

    87         fprintf(stderr, "PR_ntohll failed\n");

    88         exit(1);

    89     }

    91     printf("PASS\n");

    92     return 0;

    93 }

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