+/* Testcase for http://sourceware.org/bugzilla/show_bug.cgi?id=14090.
+ Copyright (C) 2012 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 180
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"