From e77c81ca2cc881db4a1a11b6a3abc2a73f13747b Mon Sep 17 00:00:00 2001
From: Funda Wang <fundawang@yeah.net>
Date: Wed, 8 Jan 2025 10:46:06 +0800
Subject: [PATCH] bugfix-compat_uuid

---
 dmidecode.c | 2 +-
 dmiopt.c    | 5 +++++
 dmiopt.h    | 1 +
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/dmidecode.c b/dmidecode.c
index 45a6c06..e62b0bd 100644
--- a/dmidecode.c
+++ b/dmidecode.c
@@ -484,7 +484,7 @@ static void dmi_system_uuid(void (*print_cb)(const char *name, const char *forma
 	 * network byte order, so I am reluctant to apply the byte-swapping
 	 * for older versions.
 	 */
-	if (ver >= 0x0206)
+	if (ver >= 0x0206 && !(opt.flags & FLAG_COMPAT_UUID))
 	{
 		if (print_cb)
 			print_cb(attr,
diff --git a/dmiopt.c b/dmiopt.c
index 0db14e0..58784aa 100644
--- a/dmiopt.c
+++ b/dmiopt.c
@@ -283,6 +283,7 @@ int parse_command_line(int argc, char * const argv[])
 		{ "list-strings", no_argument, NULL, 'L' },
 		{ "list-types", no_argument, NULL, 'T' },
 		{ "version", no_argument, NULL, 'V' },
+		{ "compat-uuid", no_argument, NULL, 'C' },
 		{ NULL, 0, NULL, 0 }
 	};
 
@@ -348,6 +349,9 @@ int parse_command_line(int argc, char * const argv[])
 			case 'V':
 				opt.flags |= FLAG_VERSION;
 				break;
+			case 'C':
+                               opt.flags |= FLAG_COMPAT_UUID;
+                               break;
 			case '?':
 				switch (optopt)
 				{
@@ -398,6 +402,7 @@ void print_help(void)
 		"     --dump-bin FILE    Dump the DMI data to a binary file\n"
 		"     --from-dump FILE   Read the DMI data from a binary file\n"
 		"     --no-sysfs         Do not attempt to read DMI data from sysfs files\n"
+                "     --compat-uuid      use compat uuid format with 2.6 SMBIOS specification\n"
 		"     --oem-string N     Only display the value of the given OEM string\n"
 		" -V, --version          Display the version and exit\n";
 
diff --git a/dmiopt.h b/dmiopt.h
index ae04778..e2f3b6b 100644
--- a/dmiopt.h
+++ b/dmiopt.h
@@ -48,6 +48,7 @@ extern struct opt opt;
 #define FLAG_NO_SYSFS           (1 << 6)
 #define FLAG_NO_QUIRKS          (1 << 7)
 #define FLAG_LIST               (1 << 8)
+#define FLAG_COMPAT_UUID        (1 << 10)
 
 int parse_command_line(int argc, char * const argv[]);
 void print_help(void);
-- 
2.46.0