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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 16:11:47 +0000
commit758f820bcc0f68aeebac1717e537ca13a320b909 (patch)
tree48111ece75cf4f98316848b37a7e26356e00669e /gnulib-tests/test-digest.h
parentInitial commit. (diff)
downloadcoreutils-758f820bcc0f68aeebac1717e537ca13a320b909.tar.xz
coreutils-758f820bcc0f68aeebac1717e537ca13a320b909.zip
Adding upstream version 9.1.upstream/9.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gnulib-tests/test-digest.h')
-rw-r--r--gnulib-tests/test-digest.h144
1 files changed, 144 insertions, 0 deletions
diff --git a/gnulib-tests/test-digest.h b/gnulib-tests/test-digest.h
new file mode 100644
index 0000000..73e0d9c
--- /dev/null
+++ b/gnulib-tests/test-digest.h
@@ -0,0 +1,144 @@
+/* Test of message digests.
+ Copyright (C) 2018-2022 Free Software Foundation, Inc.
+
+ 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, either version 3 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 <https://www.gnu.org/licenses/>. */
+
+static void
+test_digest_on_files (int (*streamfunc) (FILE *, void *),
+ const char *streamfunc_name,
+ size_t digest_size,
+ const void *expected_for_empty_file,
+ const void *expected_for_small_file,
+ const void *expected_for_large_file)
+{
+ int pass;
+ unlink (TESTFILE);
+
+ for (pass = 0; pass < 5; pass++)
+ {
+ {
+ FILE *fp = fopen (TESTFILE, "wb");
+ if (fp == NULL)
+ {
+ fprintf (stderr, "Could not create file %s.\n", TESTFILE);
+ exit (1);
+ }
+ switch (pass)
+ {
+ case 0:
+ /* Nothing to do for the empty file. */
+ break;
+ case 2:
+ /* Fill the small file, with some header that will be skipped. */
+ fputs ("ABCD", fp);
+ FALLTHROUGH;
+ case 1:
+ /* Fill the small file. */
+ fputs ("The quick brown fox jumps over the lazy dog.\n", fp);
+ break;
+ case 4:
+ /* Fill the large file, with some header that will be skipped. */
+ fputs ("ABCD", fp);
+ FALLTHROUGH;
+ case 3:
+ /* Fill the large file (8 MiB). */
+ {
+ unsigned int i;
+ for (i = 0; i < 0x400000; i++)
+ {
+ unsigned char c[2];
+ unsigned int j = i * (i-1) * (i-5);
+ c[0] = (unsigned char)(j >> 6);
+ c[1] = (i % 499) + (i % 101);
+ fwrite (c, 1, 2, fp);
+ }
+ }
+ break;
+ }
+ if (ferror (fp))
+ {
+ fprintf (stderr, "Could not write data to file %s.\n", TESTFILE);
+ exit (1);
+ }
+ fclose (fp);
+ }
+ {
+ /* Test an unaligned digest. */
+ char *digest = (char *) malloc (digest_size + 1) + 1;
+ const void *expected;
+ FILE *fp;
+ int ret;
+
+ switch (pass)
+ {
+ case 0: expected = expected_for_empty_file; break;
+ case 1: case 2: expected = expected_for_small_file; break;
+ case 3: case 4: expected = expected_for_large_file; break;
+ default: abort ();
+ }
+
+ fp = fopen (TESTFILE, "rb");
+ if (fp == NULL)
+ {
+ fprintf (stderr, "Could not open file %s.\n", TESTFILE);
+ exit (1);
+ }
+ switch (pass)
+ {
+ case 2:
+ case 4:
+ {
+ char header[4];
+ if (fread (header, 1, sizeof (header), fp) != sizeof (header))
+ {
+ fprintf (stderr, "Could not read the header of %s.\n",
+ TESTFILE);
+ exit (1);
+ }
+ }
+ break;
+ }
+ ret = streamfunc (fp, digest);
+ if (ret)
+ {
+ fprintf (stderr, "%s failed with error %d\n", streamfunc_name, -ret);
+ exit (1);
+ }
+ if (memcmp (digest, expected, digest_size) != 0)
+ {
+ size_t i;
+ fprintf (stderr, "%s produced wrong result.\n", streamfunc_name);
+ fprintf (stderr, "Expected: ");
+ for (i = 0; i < digest_size; i++)
+ fprintf (stderr, "\\x%02x", ((const unsigned char *) expected)[i]);
+ fprintf (stderr, "\n");
+ fprintf (stderr, "Got: ");
+ for (i = 0; i < digest_size; i++)
+ fprintf (stderr, "\\x%02x", ((const unsigned char *) digest)[i]);
+ fprintf (stderr, "\n");
+ exit (1);
+ }
+ /* Verify that fp is now positioned at end of file. */
+ if (getc (fp) != EOF)
+ {
+ fprintf (stderr, "%s left the stream not at EOF\n", streamfunc_name);
+ exit (1);
+ }
+ fclose (fp);
+ free (digest - 1);
+ }
+ }
+
+ unlink (TESTFILE);
+}