File efivar-bsc1127544-fix-ucs2len.patch of Package efivar.20186

Overview Repositories Revisions Requests Users Attributes Meta

File efivar-bsc1127544-fix-ucs2len.patch of Package efivar.20186

From fdb803402fb32fa6d020bac57a40c7efe4aabb7d Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Tue, 5 Mar 2019 17:23:24 +0100
Subject: [PATCH 1/2] ucs2.h: remove unused variable

The const uint16_t pointer is not used since now the two bytes of the
UCS-2 chars are checked to know if is the termination of the string.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
 src/ucs2.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/ucs2.h b/src/ucs2.h
index edd8367..e0390c3 100644
--- a/src/ucs2.h
+++ b/src/ucs2.h
@@ -26,12 +26,11 @@ static inline size_t UNUSED
 ucs2len(const void *vs, ssize_t limit)
 {
 	ssize_t i;
-	const uint16_t *s = vs;
 	const uint8_t *s8 = vs;
 
 	for (i = 0;
 	     i < (limit >= 0 ? limit : i+1) && s8[0] != 0 && s8[1] != 0;
-	     i++, s8 += 2, s++)
+	     i++, s8 += 2)
 		;
 	return i;
 }
-- 
2.20.1

From 4e04afc2df9bbc26e5ab524b53a6f4f1e61d7c9e Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Tue, 5 Mar 2019 17:23:32 +0100
Subject: [PATCH 2/2] ucs2.h: fix logic that checks for UCS-2 string
 termination

Currently the loop to count the lenght of the UCS-2 string ends if either
of the two bytes are 0, but 0 is a valid value for UCS-2 character codes.

So only break the loop when 0 is the value for both UCS-2 char bytes.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
 src/ucs2.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ucs2.h b/src/ucs2.h
index e0390c3..fd8b056 100644
--- a/src/ucs2.h
+++ b/src/ucs2.h
@@ -29,7 +29,7 @@ ucs2len(const void *vs, ssize_t limit)
 	const uint8_t *s8 = vs;
 
 	for (i = 0;
-	     i < (limit >= 0 ? limit : i+1) && s8[0] != 0 && s8[1] != 0;
+	     i < (limit >= 0 ? limit : i+1) && !(s8[0] == 0 && s8[1] == 0);
 	     i++, s8 += 2)
 		;
 	return i;
-- 
2.20.1

Places

File efivar-bsc1127544-fix-ucs2len.patch of Package efivar.20186

Places