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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/crypt/md5test-giant.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.xz glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/crypt/md5test-giant.c')
-rw-r--r-- | REORG.TODO/crypt/md5test-giant.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/REORG.TODO/crypt/md5test-giant.c b/REORG.TODO/crypt/md5test-giant.c new file mode 100644 index 0000000000..4655a74db8 --- /dev/null +++ b/REORG.TODO/crypt/md5test-giant.c @@ -0,0 +1,137 @@ +/* Testcase for http://sourceware.org/bugzilla/show_bug.cgi?id=14090. + Copyright (C) 2012-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; version 2 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, see <http://www.gnu.org/licenses/>. */ + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> + +#include "md5.h" + +/* This test will not work with 32-bit size_t, so let it succeed + there. */ +#if SIZE_MAX <= UINT32_MAX +static int +do_test (void) +{ + return 0; +} +#else + +# define CONST_2G 0x080000000 +# define CONST_10G 0x280000000 + +/* MD5 sum values of zero-filled blocks of specified sizes. */ +static const struct test_data_s +{ + const char ref[16]; + size_t len; +} test_data[] = + { + { "\xd4\x1d\x8c\xd9\x8f\x00\xb2\x04\xe9\x80\x09\x98\xec\xf8\x42\x7e", + 0x000000000 }, + { "\xa9\x81\x13\x0c\xf2\xb7\xe0\x9f\x46\x86\xdc\x27\x3c\xf7\x18\x7e", + 0x080000000 }, + { "\xc9\xa5\xa6\x87\x8d\x97\xb4\x8c\xc9\x65\xc1\xe4\x18\x59\xf0\x34", + 0x100000000 }, + { "\x58\xcf\x63\x8a\x73\x3f\x91\x90\x07\xb4\x28\x7c\xf5\x39\x6d\x0c", + 0x180000000 }, + { "\xb7\x70\x35\x1f\xad\xae\x5a\x96\xbb\xaf\x97\x02\xed\x97\xd2\x8d", + 0x200000000 }, + { "\x2d\xd2\x6c\x4d\x47\x99\xeb\xd2\x9f\xa3\x1e\x48\xd4\x9e\x8e\x53", + 0x280000000 }, +}; + +static int +report (const char *id, const char *md5, size_t len, const char *ref) +{ + if (memcmp (md5, ref, 16)) + { + printf ("test %s with size %zd failed\n", id, len); + return 1; + } + return 0; +} + +/* Test md5 in a single md5_process_bytes call. */ +static int +test_single (void *buf, size_t len, const char *ref) +{ + char sum[16]; + struct md5_ctx ctx; + + __md5_init_ctx (&ctx); + __md5_process_bytes (buf, len, &ctx); + __md5_finish_ctx (&ctx, sum); + + return report ("single", sum, len, ref); +} + +/* Test md5 with two md5_process_bytes calls to trigger a + different path in md5_process_block for sizes > 2 GB. */ +static int +test_double (void *buf, size_t len, const char *ref) +{ + char sum[16]; + struct md5_ctx ctx; + + __md5_init_ctx (&ctx); + if (len >= CONST_2G) + { + __md5_process_bytes (buf, CONST_2G, &ctx); + __md5_process_bytes (buf + CONST_2G, len - CONST_2G, &ctx); + } + else + __md5_process_bytes (buf, len, &ctx); + + __md5_finish_ctx (&ctx, sum); + + return report ("double", sum, len, ref); +} + + +static int +do_test (void) +{ + void *buf; + unsigned int j; + int result = 0; + + buf = mmap64 (0, CONST_10G, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); + if (buf == MAP_FAILED) + { + puts ("Could not allocate 10 GB via mmap, skipping test."); + return 0; + } + + for (j = 0; j < sizeof (test_data) / sizeof (struct test_data_s); j++) + { + if (test_single (buf, test_data[j].len, test_data[j].ref)) + result = 1; + if (test_double (buf, test_data[j].len, test_data[j].ref)) + result = 1; + } + + return result; +} +#endif + +/* This needs on a fast machine 90s. */ +#define TIMEOUT 480 +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |