[PATCH] partutil: make the get endian functions alignment aware

[Guillem Jover]

On architectures where unaligned access is not supported, it might have
to be fixed at runtime which can cause slow downs or make the code abort
(like generating SIGBUS).
---
 partutil/partutil.c |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/partutil/partutil.c b/partutil/partutil.c
index 35fc82d..c623ca2 100644
--- a/partutil/partutil.c
+++ b/partutil/partutil.c
@@ -146,27 +146,39 @@ part_table_find (PartitionTable *p, guint64 offset,
 static guint16
 get_le16 (const void *buf)
 {
-	return GUINT16_FROM_LE ( * ((guint16 *) buf) );
+	guint16 i;
+
+	memcpy (&i, buf, sizeof (i));
+	return GUINT16_FROM_LE (i);
 }
 
 
 static guint32
 get_le32 (const void *buf)
 {
-	return GUINT32_FROM_LE ( * ((guint32 *) buf) );
+	guint32 i;
+
+	memcpy (&i, buf, sizeof (i));
+	return GUINT32_FROM_LE (i);
 }
 
 static guint64
 get_le64 (const void *buf)
 {
-	return GUINT64_FROM_LE ( * ((guint64 *) buf) );
+	guint64 i;
+
+	memcpy (&i, buf, sizeof (i));
+	return GUINT64_FROM_LE (i);
 }
 
 
 static guint32
 get_be32 (const void *buf)
 {
-	return GUINT32_FROM_BE ( * ((guint32 *) buf) );
+	guint32 i;
+
+	memcpy (&i, buf, sizeof (i));
+	return GUINT32_FROM_BE (i);
 }
 
 /* see http://en.wikipedia.org/wiki/Globally_Unique_Identifier - excerpt
-- 
1.5.4.3