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libvirt/tests/virendiantest.c
John Ferlan cc1c7af2b3 util: Introduce virReadBufInt16LE and virReadBufInt16BE
In order to read 16 bits of data in the native format and convert add
the 16 bit macros to match existing 32 and 64 bit code.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-06-24 13:23:02 -04:00

121 lines
3.3 KiB
C

/*
* Copyright (C) 2013 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include "testutils.h"
#include "virendian.h"
static int
test1(const void *data ATTRIBUTE_UNUSED)
{
/* Regular char should work, even if signed, and even with
* unaligned access. */
char array[] = { 1, 2, 3, 4, 5, 6, 7, 8,
0x89, 0x8a, 0x8b, 0x8c, 0x8d };
int ret = -1;
if (virReadBufInt64BE(array) != 0x0102030405060708ULL)
goto cleanup;
if (virReadBufInt64BE(array + 5) != 0x060708898a8b8c8dULL)
goto cleanup;
if (virReadBufInt64LE(array) != 0x0807060504030201ULL)
goto cleanup;
if (virReadBufInt64LE(array + 5) != 0x8d8c8b8a89080706ULL)
goto cleanup;
if (virReadBufInt32BE(array) != 0x01020304U)
goto cleanup;
if (virReadBufInt32BE(array + 9) != 0x8a8b8c8dU)
goto cleanup;
if (virReadBufInt32LE(array) != 0x04030201U)
goto cleanup;
if (virReadBufInt32LE(array + 9) != 0x8d8c8b8aU)
goto cleanup;
if (virReadBufInt16BE(array) != 0x0102U)
goto cleanup;
if (virReadBufInt16BE(array + 11) != 0x8c8dU)
goto cleanup;
if (virReadBufInt16LE(array) != 0x0201U)
goto cleanup;
if (virReadBufInt16LE(array + 11) != 0x8d8cU)
goto cleanup;
ret = 0;
cleanup:
return ret;
}
static int
test2(const void *data ATTRIBUTE_UNUSED)
{
/* Unsigned char should work without cast, even if unaligned access. */
unsigned char array[] = { 1, 2, 3, 4, 5, 6, 7, 8,
0x89, 0x8a, 0x8b, 0x8c, 0x8d };
int ret = -1;
if (virReadBufInt64BE(array) != 0x0102030405060708ULL)
goto cleanup;
if (virReadBufInt64BE(array + 5) != 0x060708898a8b8c8dULL)
goto cleanup;
if (virReadBufInt64LE(array) != 0x0807060504030201ULL)
goto cleanup;
if (virReadBufInt64LE(array + 5) != 0x8d8c8b8a89080706ULL)
goto cleanup;
if (virReadBufInt32BE(array) != 0x01020304U)
goto cleanup;
if (virReadBufInt32BE(array + 9) != 0x8a8b8c8dU)
goto cleanup;
if (virReadBufInt32LE(array) != 0x04030201U)
goto cleanup;
if (virReadBufInt32LE(array + 9) != 0x8d8c8b8aU)
goto cleanup;
if (virReadBufInt16BE(array) != 0x0102U)
goto cleanup;
if (virReadBufInt16BE(array + 11) != 0x8c8dU)
goto cleanup;
if (virReadBufInt16LE(array) != 0x0201U)
goto cleanup;
if (virReadBufInt16LE(array + 11) != 0x8d8cU)
goto cleanup;
ret = 0;
cleanup:
return ret;
}
static int
mymain(void)
{
int ret = 0;
if (virTestRun("test1", test1, NULL) < 0)
ret = -1;
if (virTestRun("test2", test2, NULL) < 0)
ret = -1;
return ret;
}
VIRT_TEST_MAIN(mymain)