Merging upstream version 2.2.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

util/types.c

@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <ccan/endian/endian.h>
+
+#include "types.h"
+
+nvme_uint128_t le128_to_cpu(__u8 *data)
+{
+	nvme_uint128_t u;
+	nvme_uint128_t tmp;
+	memcpy(tmp.bytes, data, 16);
+	u.words[0] = le32_to_cpu(tmp.words[3]);
+	u.words[1] = le32_to_cpu(tmp.words[2]);
+	u.words[2] = le32_to_cpu(tmp.words[1]);
+	u.words[3] = le32_to_cpu(tmp.words[0]);
+	return u;
+}
+
+long double int128_to_double(__u8 *data)
+{
+	int i;
+	long double result = 0;
+
+	for (i = 0; i < 16; i++) {
+		result *= 256;
+		result += data[15 - i];
+	}
+	return result;
+}
+
+uint64_t int48_to_long(__u8 *data)
+{
+	int i;
+	uint64_t result = 0;
+
+	for (i = 0; i < 6; i++) {
+		result *= 256;
+		result += data[5 - i];
+	}
+	return result;
+}
+
+char *uint128_t_to_string(nvme_uint128_t val)
+{
+	static char str[40];
+	int idx = 40;
+	__u64 div, rem;
+
+	/* terminate at the end, and build up from the ones */
+	str[--idx] = '\0';
+
+	do {
+		rem = val.words[0];
+
+		div = rem / 10;
+		rem = ((rem - div * 10) << 32) + val.words[1];
+		val.words[0] = div;
+
+		div = rem / 10;
+		rem = ((rem - div * 10) << 32) + val.words[2];
+		val.words[1] = div;
+
+		div = rem / 10;
+		rem = ((rem - div * 10) << 32) + val.words[3];
+		val.words[2] = div;
+
+		div = rem / 10;
+		rem = rem - div * 10;
+		val.words[3] = div;
+
+		str[--idx] = '0' + rem;
+	} while (val.words[0] || val.words[1] || val.words[2] || val.words[3]);
+
+	return str + idx;
+}
+
+const char *util_uuid_to_string(unsigned char uuid[NVME_UUID_LEN])
+{
+	static char uuid_str[NVME_UUID_LEN_STRING];
+
+	nvme_uuid_to_string(uuid, uuid_str);
+
+	return uuid_str;
+}
+
+const char *util_fw_to_string(char *c)
+{
+	static char ret[9];
+	int i;
+
+	for (i = 0; i < 8; i++)
+		ret[i] = c[i] >= '!' && c[i] <= '~' ? c[i] : '.';
+	ret[i] = '\0';
+	return ret;
+}