1 files changed, 221 insertions, 0 deletions
diff --git a/src/test_libFLAC/md5.c b/src/test_libFLAC/md5.c
new file mode 100644
index 0000000..bac4a74
--- /dev/null
+++ b/src/test_libFLAC/md5.c
@@ -0,0 +1,221 @@
+/* test_libFLAC - Unit tester for libFLAC
+ * Copyright (C) 2014-2023  Xiph.Org Foundation
+ *
+ * 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 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+
+#include "FLAC/assert.h"
+#include "share/compat.h"
+#include "private/md5.h"
+#include "md5.h"
+
+
+static FLAC__bool test_md5_clear_context(void);
+static FLAC__bool test_md5_codec(void);
+static FLAC__bool test_md5_accumulate(const FLAC__int32 * const * signal,uint32_t channels, uint32_t samples, uint32_t bytes_per_sample, const FLAC__byte target_digest [16]);
+
+FLAC__bool test_md5(void)
+{
+	printf("\n+++ libFLAC unit test: md5\n\n");
+
+	if (! test_md5_clear_context())
+		return false;
+
+	if (! test_md5_codec())
+		return false;
+
+	printf("\nPASSED!\n");
+	return true;
+}
+
+/*----------------------------------------------------------------------------*/
+
+static FLAC__bool test_md5_clear_context(void)
+{
+	FLAC__MD5Context ctx;
+	FLAC__byte digest[16];
+	FLAC__byte target[16] = { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e };
+	uint32_t k ;
+	char * cptr;
+
+	printf("testing FLAC__MD5Init ... ");
+	FLAC__MD5Init (&ctx);
+	if (ctx.buf[0] != 0x67452301) {
+		printf("FAILED!\n");
+		return false;
+	}
+	printf("OK\n");
+
+	printf("testing that FLAC__MD5Final clears the MD5Context ... ");
+	FLAC__MD5Final(digest, &ctx);
+	cptr = (char*) &ctx ;
+	for (k = 0 ; k < sizeof (ctx) ; k++) {
+		if (cptr [k]) {
+			printf("FAILED, MD5 ctx has not been cleared after FLAC__MD5Final\n");
+			return false;
+		}
+	}
+	printf("OK\n");
+
+	printf("testing digest correct for zero data ... ");
+	if (memcmp(digest, target, sizeof (digest))) {
+		printf("\nFAILED, expected MD5 sum ");
+		for (k = 0 ; k < 16 ; k++)
+			printf("%02x", (target [k] & 0xff));
+		printf (" but got ");
+		for (k = 0 ; k < 16 ; k++)
+			printf("%02x", (digest [k] & 0xff));
+		puts("\n");
+		return false;
+	}
+	puts("OK");
+
+	return true;
+}
+
+static FLAC__byte target_digests [8][4][16] =
+{	/* 1 channel */
+	{ 	/* 1 byte per sample */
+		{ 0xc1, 0x9a, 0x5b, 0xeb, 0x57, 0x8f, 0x26, 0xeb, 0xfb, 0x34, 0x7c, 0xef, 0x04, 0x31, 0x6d, 0x7d },
+		/* 2 bytes per sample */
+		{ 0xd4, 0x78, 0x90, 0xd3, 0xa9, 0x17, 0x4e, 0x76, 0xca, 0x4d, 0x27, 0x20, 0x98, 0x36, 0x8b, 0x2e },
+		/* 3 bytes per sample */
+		{ 0x5a, 0x4b, 0xd6, 0xac, 0xa1, 0x70, 0x84, 0x19, 0x7c, 0x0d, 0xfb, 0x5b, 0xa9, 0x7b, 0xcb, 0x54 },
+		/* 4 bytes per sample */
+		{ 0x79, 0xd5, 0x7a, 0x32, 0x06, 0x0b, 0xfe, 0x46, 0xa3, 0xe7, 0xba, 0xc5, 0xf7, 0x48, 0x6f, 0x50 }
+	},
+
+	/* 2 channels */
+	{
+		{ 0x89, 0xac, 0xcf, 0x91, 0xf1, 0x8c, 0xea, 0xab, 0x46, 0x12, 0x74, 0xbc, 0x4e, 0x82, 0xbe, 0x7d },
+		{ 0xb9, 0x17, 0x16, 0x5b, 0xd8, 0x1c, 0xc8, 0x4e, 0x5a, 0x28, 0xfb, 0xba, 0x87, 0x74, 0x76, 0x44 },
+		{ 0xec, 0x63, 0x92, 0xca, 0x4f, 0x6b, 0x9e, 0xb1, 0x9f, 0xec, 0x3b, 0x2c, 0x15, 0x30, 0xfd, 0x2a },
+		{ 0x05, 0x4d, 0xfd, 0xb8, 0x9d, 0x8a, 0xa2, 0xdd, 0x26, 0x47, 0xc6, 0xfb, 0x4f, 0x23, 0x67, 0x6d }
+	},
+
+	/* 3 channels */
+	{
+		{ 0xad, 0x05, 0xda, 0xf3, 0x7a, 0xa1, 0x94, 0xdb, 0x0c, 0x61, 0x06, 0xb2, 0x94, 0x39, 0x6c, 0xa9 },
+		{ 0x8b, 0xcc, 0x41, 0x4d, 0xe9, 0xe3, 0xc2, 0x61, 0x61, 0x8a, 0x8b, 0x22, 0xc6, 0x4e, 0xac, 0xa7 },
+		{ 0x8a, 0xce, 0x97, 0xc1, 0x86, 0xae, 0xbc, 0x73, 0x88, 0x8b, 0x35, 0x5a, 0x37, 0x33, 0xf9, 0xcf },
+		{ 0x69, 0x59, 0xe8, 0x38, 0x29, 0x80, 0x80, 0x21, 0xb1, 0xd2, 0xba, 0xf6, 0x28, 0xd6, 0x6a, 0x83 }
+	},
+
+	/* 4 channels */
+	{
+		{ 0x61, 0x40, 0x75, 0xef, 0x22, 0xf1, 0x0f, 0xa6, 0x08, 0x6c, 0x88, 0xff, 0x2c, 0x4e, 0x98, 0x0b },
+		{ 0xa0, 0x77, 0x3a, 0x59, 0x4a, 0xbf, 0xd0, 0x5c, 0xcc, 0xe3, 0xb9, 0x83, 0x2b, 0xf3, 0xdf, 0x1a },
+		{ 0xdb, 0xd7, 0xf1, 0x82, 0x13, 0x60, 0x42, 0x7c, 0x84, 0xe6, 0xcf, 0x30, 0xab, 0xa2, 0x64, 0xf1 },
+		{ 0x4a, 0x9a, 0xad, 0x53, 0x05, 0x74, 0xb1, 0x1c, 0xb8, 0xd4, 0xae, 0x78, 0x13, 0xf6, 0x2a, 0x11 }
+	},
+
+	/* 5 channels */
+	{
+		{ 0xcc, 0xca, 0x44, 0xc0, 0x54, 0xe2, 0xc9, 0xba, 0x99, 0x32, 0xc9, 0x65, 0xf3, 0x3e, 0x44, 0x34},
+		{ 0x40, 0x38, 0x6a, 0xdd, 0xde, 0x89, 0x10, 0x3c, 0x8e, 0xec, 0xdf, 0x15, 0x53, 0x4c, 0x2c, 0x92 },
+		{ 0xc8, 0x95, 0x0a, 0x7c, 0x17, 0x30, 0xc0, 0xac, 0x8e, 0x34, 0xdb, 0x79, 0x76, 0x64, 0x7c, 0x6e },
+		{ 0x3f, 0x06, 0x11, 0x8a, 0x8d, 0x80, 0xb5, 0x4f, 0x8b, 0xb5, 0x8e, 0xb3, 0x27, 0x3e, 0x41, 0xe8 }
+	},
+
+	/* 6 channels */
+	{
+		{ 0x61, 0xe4, 0xbd, 0xb1, 0xc0, 0x2f, 0xf4, 0x4c, 0x6e, 0x09, 0x5a, 0xbd, 0x90, 0x18, 0x8b, 0x62 },
+		{ 0x47, 0xe7, 0x6e, 0x3b, 0x18, 0x86, 0x60, 0x1b, 0x09, 0x62, 0xc6, 0xc9, 0x7c, 0x4c, 0x03, 0xb5 },
+		{ 0x70, 0x57, 0xbf, 0x67, 0x66, 0x0f, 0xe3, 0x0a, 0x6c, 0xd2, 0x97, 0x66, 0xa2, 0xd2, 0xe4, 0x79 },
+		{ 0xaa, 0x3f, 0xc7, 0xf5, 0x7a, 0xa5, 0x46, 0xf7, 0xea, 0xe3, 0xd5, 0x1a, 0xa4, 0x62, 0xbe, 0xfa }
+	},
+
+	/* 7 channels */
+	{
+		{ 0x7c, 0x8d, 0xd2, 0x8c, 0xfd, 0x91, 0xbb, 0x77, 0x6f, 0x0e, 0xf0, 0x39, 0x1f, 0x39, 0xc4, 0xac },
+		{ 0xfb, 0xab, 0x18, 0x3f, 0x1e, 0x1d, 0xa5, 0x77, 0xe0, 0x5c, 0xea, 0x45, 0x6f, 0x64, 0xa4, 0x64 },
+		{ 0xe3, 0xac, 0x33, 0x50, 0xc1, 0xb1, 0x93, 0xfb, 0xca, 0x4b, 0x15, 0xcb, 0x2d, 0xcd, 0xd5, 0xef },
+		{ 0x10, 0xfb, 0x02, 0x83, 0x76, 0x0d, 0xe5, 0xd2, 0x3b, 0xb1, 0x4c, 0x78, 0x3b, 0x73, 0xf7, 0x1a }
+	},
+
+	/* 8 channels */
+	{
+		{ 0x65, 0x7b, 0xe5, 0x92, 0xe2, 0x1c, 0x95, 0x3e, 0xd7, 0x2f, 0x64, 0xa0, 0x86, 0xec, 0x1a, 0xed },
+		{ 0x9d, 0x04, 0x8f, 0xa4, 0xea, 0x10, 0xec, 0xb8, 0xa3, 0x88, 0xe2, 0x5d, 0x3c, 0xe2, 0xfb, 0x94 },
+		{ 0x5a, 0xd3, 0xd2, 0x75, 0x6a, 0xfa, 0xa7, 0x42, 0xf3, 0xbf, 0x0e, 0xbc, 0x90, 0x2a, 0xf8, 0x5f },
+		{ 0x76, 0xe1, 0xe5, 0xf6, 0xe3, 0x44, 0x08, 0x29, 0xae, 0x79, 0x19, 0xeb, 0xa8, 0x57, 0x16, 0x2a }
+	}
+};
+
+#define MAX_CHANNEL_COUNT	8
+#define MD5_SAMPLE_COUNT	64
+
+static FLAC__bool test_md5_codec(void)
+{
+	FLAC__int32 arrays[MAX_CHANNEL_COUNT][MD5_SAMPLE_COUNT], *pointer[MAX_CHANNEL_COUNT], **signal;
+	uint32_t chan, byte_size, seed = 0x12345679;
+
+	/* Set up signal data using a trivial Linear Congruent PRNG. */
+	signal = &pointer[0];
+	for (chan = 0 ; chan < MAX_CHANNEL_COUNT ; chan ++) {
+		uint32_t k;
+		pointer[chan] = arrays [chan];
+		for (k = 0 ; k < MD5_SAMPLE_COUNT ; k++) {
+			seed = seed * 1103515245 + 12345;
+			arrays[chan][k] = seed;
+		}
+	}
+
+	for (chan = 1 ; chan <= MAX_CHANNEL_COUNT ; chan ++) {
+		for (byte_size = 1 ; byte_size <= 4 ; byte_size ++) {
+			if (! test_md5_accumulate((const FLAC__int32 * const *) signal, chan, MD5_SAMPLE_COUNT, byte_size, target_digests[chan-1][byte_size-1]))
+				return false;
+		}
+	}
+
+	return true;
+}
+
+static FLAC__bool test_md5_accumulate(const FLAC__int32 * const * signal, uint32_t channels, uint32_t samples, uint32_t bytes_per_sample, const FLAC__byte target_digest [16])
+{
+	FLAC__MD5Context ctx;
+	FLAC__byte digest[16];
+
+	memset(&ctx, 0, sizeof (ctx));
+
+	printf("testing FLAC__MD5Accumulate (samples=%u, channels=%u, bytes_per_sample=%u) ... ", samples, channels, bytes_per_sample);
+
+	FLAC__MD5Init(&ctx);
+	FLAC__MD5Accumulate(&ctx, signal, channels, samples, bytes_per_sample);
+	FLAC__MD5Final(digest, &ctx);
+
+	if (memcmp(digest, target_digest, sizeof (digest))) {
+		int k ;
+
+		printf("\nFAILED, expected MD5 sum ");
+		for (k = 0 ; k < 16 ; k++)
+			printf("%02x", (target_digest [k] & 0xff));
+		printf (" but got ");
+		for (k = 0 ; k < 16 ; k++)
+			printf("%02x", (digest [k] & 0xff));
+		puts("\n");
+		return false;
+	}
+
+	printf("OK\n");
+	return true;
+}