Adding upstream version 1:2.3.21+dfsg1.upstream/1%2.3.21+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 251 insertions, 0 deletions

diff --git a/src/lib/test-byteorder.c b/src/lib/test-byteorder.c
new file mode 100644
index 0000000..9e350ce
--- /dev/null
+++ b/src/lib/test-byteorder.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (c) 2016-2017 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "test-lib.h"
+#include "byteorder.h"
+
+struct bswap_run {
+	uint64_t in;
+	uint8_t out8;
+	uint16_t out16;
+	uint32_t out32;
+	uint64_t out64;
+};
+
+static const struct bswap_run runs[] = {
+	{
+		.in	= 0,
+		.out8	= 0,
+		.out16	= 0,
+		.out32	= 0,
+		.out64	= 0,
+	},
+	{
+		.in	= 0xffffffffffffffff,
+		.out8	= 0xff,
+		.out16	= 0xffff,
+		.out32	= 0xffffffff,
+		.out64	= 0xffffffffffffffff,
+	},
+	{
+		.in	= 0x123456789abcdef0,
+		.out8	= 0xf0,
+		.out16	= 0xf0de,
+		.out32	= 0xf0debc9a,
+		.out64	= 0xf0debc9a78563412,
+	},
+	{
+		.in	= 0x8080808080808080,
+		.out8	= 0x80,
+		.out16	= 0x8080,
+		.out32	= 0x80808080,
+		.out64	= 0x8080808080808080,
+	},
+};
+
+#define CHECK(iter, size, in, exp)					\
+	do {								\
+		uint##size##_t got = i_bswap_##size(in);			\
+									\
+		test_begin(t_strdup_printf("byteorder - bswap "		\
+					   "(size:%-2u iter:%u)",	\
+					   size, iter));		\
+		test_assert(got == exp);				\
+		test_end();						\
+	} while (0)
+
+static void __test(int iter, const struct bswap_run *run)
+{
+	CHECK(iter, 8, run->in & 0xff, run->out8);
+	CHECK(iter, 16, run->in & 0xffff, run->out16);
+	CHECK(iter, 32, run->in & 0xffffffff, run->out32);
+	CHECK(iter, 64, run->in, run->out64);
+}
+
+static void test_bswap(void)
+{
+	unsigned int i;
+
+	for (i = 0; i < N_ELEMENTS(runs) ; i++)
+		__test(i, &runs[i]);
+}
+
+struct unaligned_run {
+	uint8_t in[8];
+
+	/* outputs */
+	uint8_t be8;
+	uint16_t be16;
+	uint32_t be32;
+	uint64_t be64;
+
+	uint8_t le8;
+	uint16_t le16;
+	uint32_t le32;
+	uint64_t le64;
+
+#ifdef WORDS_BIGENDIAN
+#define cpu8 be8
+#define cpu16 be16
+#define cpu32 be32
+#define cpu64 be64
+#else
+#define cpu8 le8
+#define cpu16 le16
+#define cpu32 le32
+#define cpu64 le64
+#endif
+};
+
+static const struct unaligned_run uruns[] = {
+	{
+		.in	= {
+			0x00, 0x00, 0x00, 0x00,
+			0x00, 0x00, 0x00, 0x00,
+		},
+		.be8	= 0,
+		.be16	= 0,
+		.be32	= 0,
+		.be64	= 0,
+		.le8	= 0,
+		.le16	= 0,
+		.le32	= 0,
+		.le64	= 0,
+	},
+	{
+		.in	= {
+			0xff, 0xff, 0xff, 0xff,
+			0xff, 0xff, 0xff, 0xff,
+		},
+		.be8	= 0xff,
+		.be16	= 0xffff,
+		.be32	= 0xffffffff,
+		.be64	= 0xffffffffffffffff,
+		.le8	= 0xff,
+		.le16	= 0xffff,
+		.le32	= 0xffffffff,
+		.le64	= 0xffffffffffffffff,
+	},
+	{
+		.in	= {
+			0x12, 0x34, 0x56, 0x78,
+			0x9a, 0xbc, 0xde, 0xf0,
+		},
+		.be8	= 0x12,
+		.be16	= 0x1234,
+		.be32	= 0x12345678,
+		.be64	= 0x123456789abcdef0,
+		.le8	= 0x12,
+		.le16	= 0x3412,
+		.le32	= 0x78563412,
+		.le64	= 0xf0debc9a78563412,
+	},
+	{
+		.in	= {
+			0x80, 0x80, 0x80, 0x80,
+			0x80, 0x80, 0x80, 0x80,
+		},
+		.be8	= 0x80,
+		.be16	= 0x8080,
+		.be32	= 0x80808080,
+		.be64	= 0x8080808080808080,
+		.le8	= 0x80,
+		.le16	= 0x8080,
+		.le32	= 0x80808080,
+		.le64	= 0x8080808080808080,
+	},
+};
+
+#define __CHECK_READ(iter, size, pfx, in, fxn, exp)			\
+	do {								\
+		uint##size##_t got = fxn(in);				\
+									\
+		test_begin(t_strdup_printf("byteorder - unaligned read "\
+					   "(%-3s size:%-2u iter:%u)",	\
+					   pfx, size, iter));		\
+		test_assert(got == exp);				\
+		test_end();						\
+	} while (0)
+
+#define CHECK_READ(iter, size, in, be_exp, le_exp, cpu_exp)		\
+	do {								\
+		__CHECK_READ(iter, size, "BE", in,			\
+			     be##size##_to_cpu_unaligned, be_exp);	\
+		__CHECK_READ(iter, size, "LE", in,			\
+			     le##size##_to_cpu_unaligned, le_exp);	\
+		__CHECK_READ(iter, size, "CPU", in,			\
+			     cpu##size##_to_cpu_unaligned, cpu_exp);	\
+	} while (0)
+
+static void __test_read(int iter, const struct unaligned_run *run)
+{
+	CHECK_READ(iter, 8, run->in, run->be8, run->le8, run->cpu8);
+	CHECK_READ(iter, 16, run->in, run->be16, run->le16, run->cpu16);
+	CHECK_READ(iter, 32, run->in, run->be32, run->le32, run->cpu32);
+	CHECK_READ(iter, 64, run->in, run->be64, run->le64, run->cpu64);
+}
+
+#define __CHECK_WRITE(iter, size, pfx, in, fxn, exp)			\
+	do {								\
+		uint8_t got[size / 8];					\
+									\
+		fxn(in, got);						\
+									\
+		test_begin(t_strdup_printf("byteorder - unaligned write "\
+					   "(%-3s size:%-2u iter:%u)",	\
+					   pfx, size, iter));		\
+		test_assert(memcmp(got, exp, sizeof(got)) == 0);	\
+		test_end();						\
+	} while (0)
+
+#define CHECK_WRITE(iter, size, out, be_in, le_in)			\
+	do {								\
+		__CHECK_WRITE(iter, size, "BE", be_in,			\
+			      cpu##size##_to_be_unaligned, out);	\
+		__CHECK_WRITE(iter, size, "LE", le_in,			\
+			      cpu##size##_to_le_unaligned, out);	\
+	} while (0)
+
+static void __test_write(int iter, const struct unaligned_run *run)
+{
+	CHECK_WRITE(iter, 8, run->in, run->be8, run->le8);
+	CHECK_WRITE(iter, 16, run->in, run->be16, run->le16);
+	CHECK_WRITE(iter, 32, run->in, run->be32, run->le32);
+	CHECK_WRITE(iter, 64, run->in, run->be64, run->le64);
+}
+
+static void test_unaligned(void)
+{
+	unsigned int i;
+
+	for (i = 0; i < N_ELEMENTS(uruns) ; i++)
+		__test_read(i, &uruns[i]);
+
+	for (i = 0; i < N_ELEMENTS(uruns) ; i++)
+		__test_write(i, &uruns[i]);
+}
+
+void test_byteorder(void)
+{
+	test_bswap();
+	test_unaligned();
+}