diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:14:44 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 13:14:44 +0000 |
commit | 30ff6afe596eddafacf22b1a5b2d1a3d6254ea15 (patch) | |
tree | 9b788335f92174baf7ee18f03ca8330b8c19ce2b /tests/helpers/test_byteswap.c | |
parent | Initial commit. (diff) | |
download | util-linux-30ff6afe596eddafacf22b1a5b2d1a3d6254ea15.tar.xz util-linux-30ff6afe596eddafacf22b1a5b2d1a3d6254ea15.zip |
Adding upstream version 2.36.1.upstream/2.36.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/helpers/test_byteswap.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/tests/helpers/test_byteswap.c b/tests/helpers/test_byteswap.c new file mode 100644 index 0000000..1b98f76 --- /dev/null +++ b/tests/helpers/test_byteswap.c @@ -0,0 +1,114 @@ +/* + * This testing program makes sure the byteswap functions work + * + * Copyright (C) 2000 by Theodore Ts'o. + * Copyright (C) 2008 Karel Zak <kzak@redhat.com> + * + * This file may be redistributed under the terms of the GNU Public + * License. + */ +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <time.h> +#include <sys/stat.h> +#include <sys/types.h> +#include <errno.h> +#include <inttypes.h> + +#include "bitops.h" + +static uint16_t ary16[] = { + 0x0001, 0x0100, + 0x1234, 0x3412, + 0xff00, 0x00ff, + 0x4000, 0x0040, + 0xfeff, 0xfffe, + 0x0000, 0x0000 + }; + +static uint32_t ary32[] = { + 0x00000001, 0x01000000, + 0x80000000, 0x00000080, + 0x12345678, 0x78563412, + 0xffff0000, 0x0000ffff, + 0x00ff0000, 0x0000ff00, + 0xff000000, 0x000000ff, + 0x00000000, 0x00000000 + }; + +static uint64_t ary64[] = { + 0x0000000000000001, 0x0100000000000000, + 0x8000000000000000, 0x0000000000000080, + 0x1234567812345678, 0x7856341278563412, + 0xffffffff00000000, 0x00000000ffffffff, + 0x00ff000000000000, 0x000000000000ff00, + 0xff00000000000000, 0x00000000000000ff, + 0x0000000000000000, 0x0000000000000000 + }; + +int main(void) +{ + int i; + int errors = 0; + + printf("Testing swab16\n"); + i=0; + do { + printf("swab16(0x%04"PRIx16") = 0x%04"PRIx16"\n", + ary16[i], swab16(ary16[i])); + if (swab16(ary16[i]) != ary16[i+1]) { + printf("Error!!! %04"PRIx16" != %04"PRIx16"\n", + swab16(ary16[i]), ary16[i+1]); + errors++; + } + if (swab16(ary16[i+1]) != ary16[i]) { + printf("Error!!! %04"PRIx16" != %04"PRIx16"\n", + swab16(ary16[i+1]), ary16[i]); + errors++; + } + i += 2; + } while (ary16[i] != 0); + + printf("Testing swab32\n"); + i = 0; + do { + printf("swab32(0x%08"PRIx32") = 0x%08"PRIx32"\n", + ary32[i], swab32(ary32[i])); + if (swab32(ary32[i]) != ary32[i+1]) { + printf("Error!!! %04"PRIx32" != %04"PRIx32"\n", + swab32(ary32[i]), ary32[i+1]); + errors++; + } + if (swab32(ary32[i+1]) != ary32[i]) { + printf("Error!!! %04"PRIx32" != %04"PRIx32"\n", + swab32(ary32[i+1]), ary32[i]); + errors++; + } + i += 2; + } while (ary32[i] != 0); + + printf("Testing swab64\n"); + i = 0; + do { + printf("swab64(0x%016"PRIx64") = 0x%016"PRIx64"\n", + ary64[i], swab64(ary64[i])); + if (swab64(ary64[i]) != ary64[i+1]) { + printf("Error!!! %016"PRIx64" != %016"PRIx64"\n", + swab64(ary64[i]), ary64[i+1]); + errors++; + } + if (swab64(ary64[i+1]) != ary64[i]) { + printf("Error!!! %016"PRIx64" != %016"PRIx64"\n", + swab64(ary64[i+1]), ary64[i]); + errors++; + } + i += 2; + } while (ary64[i] != 0); + + if (!errors) + printf("No errors found in the byteswap implementation\n"); + + return errors; +} |