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nsprpub/pr/tests/ntoh.c@44a2da4a2ab2 (annotated)

nsprpub/pr/tests/ntoh.c

Fri, 16 Jan 2015 04:50:19 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Fri, 16 Jan 2015 04:50:19 +0100

branch

TOR_BUG_9701

changeset 13

44a2da4a2ab2

permissions

-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0	1	/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0	2	/* This Source Code Form is subject to the terms of the Mozilla Public
michael@0	3	* License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0	4	* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0	5
michael@0	6	/*
michael@0	7	* A test program for PR_htons, PR_ntohs, PR_htonl, PR_ntohl,
michael@0	8	* PR_htonll, and PR_ntohll.
michael@0	9	*/
michael@0	10
michael@0	11	#include "prnetdb.h"
michael@0	12
michael@0	13	#include <stdio.h>
michael@0	14	#include <string.h>
michael@0	15	#include <stdlib.h>
michael@0	16
michael@0	17	/* Byte sequence in network byte order */
michael@0	18	static unsigned char bytes_n[8] = { 1, 2, 3, 4, 5, 6, 7, 8 };
michael@0	19
michael@0	20	/* Integers in host byte order */
michael@0	21	static PRUint16 s_h = 0x0102;
michael@0	22	static PRUint32 l_h = 0x01020304;
michael@0	23	static PRUint64 ll_h = LL_INIT(0x01020304, 0x05060708);
michael@0	24
michael@0	25	int main(int argc, char **argv)
michael@0	26	{
michael@0	27	union {
michael@0	28	PRUint16 s;
michael@0	29	PRUint32 l;
michael@0	30	PRUint64 ll;
michael@0	31	unsigned char bytes[8];
michael@0	32	} un;
michael@0	33
michael@0	34	un.s = s_h;
michael@0	35	printf("%u %u\n",
michael@0	36	un.bytes[0], un.bytes[1]);
michael@0	37	un.s = PR_htons(un.s);
michael@0	38	printf("%u %u\n",
michael@0	39	un.bytes[0], un.bytes[1]);
michael@0	40	if (memcmp(un.bytes, bytes_n, 2)) {
michael@0	41	fprintf(stderr, "PR_htons failed\n");
michael@0	42	exit(1);
michael@0	43	}
michael@0	44	un.s = PR_ntohs(un.s);
michael@0	45	printf("%u %u\n",
michael@0	46	un.bytes[0], un.bytes[1]);
michael@0	47	if (un.s != s_h) {
michael@0	48	fprintf(stderr, "PR_ntohs failed\n");
michael@0	49	exit(1);
michael@0	50	}
michael@0	51
michael@0	52	un.l = l_h;
michael@0	53	printf("%u %u %u %u\n",
michael@0	54	un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3]);
michael@0	55	un.l = PR_htonl(un.l);
michael@0	56	printf("%u %u %u %u\n",
michael@0	57	un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3]);
michael@0	58	if (memcmp(un.bytes, bytes_n, 4)) {
michael@0	59	fprintf(stderr, "PR_htonl failed\n");
michael@0	60	exit(1);
michael@0	61	}
michael@0	62	un.l = PR_ntohl(un.l);
michael@0	63	printf("%u %u %u %u\n",
michael@0	64	un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3]);
michael@0	65	if (un.l != l_h) {
michael@0	66	fprintf(stderr, "PR_ntohl failed\n");
michael@0	67	exit(1);
michael@0	68	}
michael@0	69
michael@0	70	un.ll = ll_h;
michael@0	71	printf("%u %u %u %u %u %u %u %u\n",
michael@0	72	un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3],
michael@0	73	un.bytes[4], un.bytes[5], un.bytes[6], un.bytes[7]);
michael@0	74	un.ll = PR_htonll(un.ll);
michael@0	75	printf("%u %u %u %u %u %u %u %u\n",
michael@0	76	un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3],
michael@0	77	un.bytes[4], un.bytes[5], un.bytes[6], un.bytes[7]);
michael@0	78	if (memcmp(un.bytes, bytes_n, 8)) {
michael@0	79	fprintf(stderr, "PR_htonll failed\n");
michael@0	80	exit(1);
michael@0	81	}
michael@0	82	un.ll = PR_ntohll(un.ll);
michael@0	83	printf("%u %u %u %u %u %u %u %u\n",
michael@0	84	un.bytes[0], un.bytes[1], un.bytes[2], un.bytes[3],
michael@0	85	un.bytes[4], un.bytes[5], un.bytes[6], un.bytes[7]);
michael@0	86	if (LL_NE(un.ll, ll_h)) {
michael@0	87	fprintf(stderr, "PR_ntohll failed\n");
michael@0	88	exit(1);
michael@0	89	}
michael@0	90
michael@0	91	printf("PASS\n");
michael@0	92	return 0;
michael@0	93	}