The alignment macros are copied from Bluez.
---
Makefile.am | 2 +-
gdhcp/unaligned.h | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 117 insertions(+), 1 deletion(-)
create mode 100644 gdhcp/unaligned.h
diff --git a/Makefile.am b/Makefile.am
index 31a42e4..b845d6e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -26,7 +26,7 @@ gdbus_sources = gdbus/gdbus.h gdbus/mainloop.c gdbus/watch.c \
gdbus/object.c gdbus/polkit.c
gdhcp_sources = gdhcp/gdhcp.h gdhcp/common.h gdhcp/common.c gdhcp/client.c \
- gdhcp/server.c gdhcp/ipv4ll.h gdhcp/ipv4ll.c
+ gdhcp/server.c gdhcp/ipv4ll.h gdhcp/ipv4ll.c gdhcp/unaligned.h
gweb_sources = gweb/gweb.h gweb/gweb.c gweb/gresolv.h gweb/gresolv.c
diff --git a/gdhcp/unaligned.h b/gdhcp/unaligned.h
new file mode 100644
index 0000000..5a4cce3
--- /dev/null
+++ b/gdhcp/unaligned.h
@@ -0,0 +1,116 @@
+/*
+ *
+ * Connection Manager
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef __CONNMAN_UNALIGNED_H
+#define __CONNMAN_UNALIGNED_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <endian.h>
+#include <byteswap.h>
+
+#define get_unaligned(ptr) \
+({ \
+ struct __attribute__((packed)) { \
+ typeof(*(ptr)) __v; \
+ } *__p = (typeof(__p)) (ptr); \
+ __p->__v; \
+})
+
+#define put_unaligned(val, ptr) \
+do { \
+ struct __attribute__((packed)) { \
+ typeof(*(ptr)) __v; \
+ } *__p = (typeof(__p)) (ptr); \
+ __p->__v = (val); \
+} while(0)
+
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+static inline uint64_t get_le64(const void *ptr)
+{
+ return get_unaligned((const uint64_t *) ptr);
+}
+
+static inline uint64_t get_be64(const void *ptr)
+{
+ return bswap_64(get_unaligned((const uint64_t *) ptr));
+}
+
+static inline uint32_t get_le32(const void *ptr)
+{
+ return get_unaligned((const uint32_t *) ptr);
+}
+
+static inline uint32_t get_be32(const void *ptr)
+{
+ return bswap_32(get_unaligned((const uint32_t *) ptr));
+}
+
+static inline uint16_t get_le16(const void *ptr)
+{
+ return get_unaligned((const uint16_t *) ptr);
+}
+
+static inline uint16_t get_be16(const void *ptr)
+{
+ return bswap_16(get_unaligned((const uint16_t *) ptr));
+}
+#elif __BYTE_ORDER == __BIG_ENDIAN
+static inline uint64_t get_le64(const void *ptr)
+{
+ return bswap_64(get_unaligned((const uint64_t *) ptr));
+}
+
+static inline uint64_t get_be64(const void *ptr)
+{
+ return get_unaligned((const uint64_t *) ptr);
+}
+
+static inline uint32_t get_le32(const void *ptr)
+{
+ return bswap_32(get_unaligned((const uint32_t *) ptr));
+}
+
+static inline uint32_t get_be32(const void *ptr)
+{
+ return get_unaligned((const uint32_t *) ptr);
+}
+
+static inline uint16_t get_le16(const void *ptr)
+{
+ return bswap_16(get_unaligned((const uint16_t *) ptr));
+}
+
+static inline uint16_t get_be16(const void *ptr)
+{
+ return get_unaligned((const uint16_t *) ptr);
+}
+#else
+#error "Unknown byte order"
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __CONNMAN_UNALIGNED_H */
--
1.7.11.4
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