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138 lines
3.5 KiB
C
138 lines
3.5 KiB
C
/* Testcase for https://sourceware.org/bugzilla/show_bug.cgi?id=14090.
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Copyright (C) 2012-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published
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by the Free Software Foundation; version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, see <https://www.gnu.org/licenses/>. */
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include "md5.h"
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/* This test will not work with 32-bit size_t, so let it succeed
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there. */
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#if SIZE_MAX <= UINT32_MAX
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static int
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do_test (void)
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{
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return 0;
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}
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#else
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# define CONST_2G 0x080000000
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# define CONST_10G 0x280000000
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/* MD5 sum values of zero-filled blocks of specified sizes. */
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static const struct test_data_s
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{
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const char ref[16];
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size_t len;
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} test_data[] =
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{
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{ "\xd4\x1d\x8c\xd9\x8f\x00\xb2\x04\xe9\x80\x09\x98\xec\xf8\x42\x7e",
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0x000000000 },
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{ "\xa9\x81\x13\x0c\xf2\xb7\xe0\x9f\x46\x86\xdc\x27\x3c\xf7\x18\x7e",
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0x080000000 },
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{ "\xc9\xa5\xa6\x87\x8d\x97\xb4\x8c\xc9\x65\xc1\xe4\x18\x59\xf0\x34",
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0x100000000 },
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{ "\x58\xcf\x63\x8a\x73\x3f\x91\x90\x07\xb4\x28\x7c\xf5\x39\x6d\x0c",
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0x180000000 },
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{ "\xb7\x70\x35\x1f\xad\xae\x5a\x96\xbb\xaf\x97\x02\xed\x97\xd2\x8d",
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0x200000000 },
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{ "\x2d\xd2\x6c\x4d\x47\x99\xeb\xd2\x9f\xa3\x1e\x48\xd4\x9e\x8e\x53",
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0x280000000 },
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};
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static int
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report (const char *id, const char *md5, size_t len, const char *ref)
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{
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if (memcmp (md5, ref, 16))
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{
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printf ("test %s with size %zd failed\n", id, len);
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return 1;
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}
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return 0;
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}
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/* Test md5 in a single md5_process_bytes call. */
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static int
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test_single (void *buf, size_t len, const char *ref)
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{
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char sum[16];
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struct md5_ctx ctx;
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__md5_init_ctx (&ctx);
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__md5_process_bytes (buf, len, &ctx);
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__md5_finish_ctx (&ctx, sum);
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return report ("single", sum, len, ref);
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}
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/* Test md5 with two md5_process_bytes calls to trigger a
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different path in md5_process_block for sizes > 2 GB. */
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static int
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test_double (void *buf, size_t len, const char *ref)
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{
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char sum[16];
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struct md5_ctx ctx;
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__md5_init_ctx (&ctx);
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if (len >= CONST_2G)
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{
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__md5_process_bytes (buf, CONST_2G, &ctx);
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__md5_process_bytes (buf + CONST_2G, len - CONST_2G, &ctx);
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}
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else
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__md5_process_bytes (buf, len, &ctx);
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__md5_finish_ctx (&ctx, sum);
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return report ("double", sum, len, ref);
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}
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static int
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do_test (void)
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{
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void *buf;
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unsigned int j;
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int result = 0;
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buf = mmap64 (0, CONST_10G, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
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if (buf == MAP_FAILED)
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{
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puts ("Could not allocate 10 GB via mmap, skipping test.");
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return 0;
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}
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for (j = 0; j < sizeof (test_data) / sizeof (struct test_data_s); j++)
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{
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if (test_single (buf, test_data[j].len, test_data[j].ref))
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result = 1;
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if (test_double (buf, test_data[j].len, test_data[j].ref))
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result = 1;
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}
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return result;
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}
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#endif
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/* This needs on a fast machine 90s. */
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#define TIMEOUT 480
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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