X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=secnet.git;a=blobdiff_plain;f=unaligned.h;h=a15043e56597eb4ad85ffb01391006c0ffaf5902;hp=45b0d3c079319e5e31b7c5c5da43b98a7ba9d1cf;hb=efacf9e0049ac05c817a88158d0cce5ea9d81b09;hpb=5963521296680c2aeb40baeb72459dffc14cd996

diff --git a/unaligned.h b/unaligned.h
index 45b0d3c..a15043e 100644
--- a/unaligned.h
+++ b/unaligned.h
@@ -1,6 +1,8 @@
 #ifndef unaligned_h
 #define unaligned_h
 
+#include <stdint.h>
+
 /* Parts of the secnet key-exchange protocol require access to
    unaligned big-endian quantities in buffers. These macros provide
    convenient access, even on architectures that don't support unaligned
@@ -11,9 +13,11 @@
 
 #define put_uint16(a,v) do {(a)[0]=((v)&0xff00)>>8; (a)[1]=(v)&0xff;} while(0)
 
-#define get_uint32(a) (((a)[0]<<24)|((a)[1]<<16)|((a)[2])<<8|(a)[3])
+#define get_uint32(a)					\
+  (((uint32_t)(a)[0]<<24) | ((uint32_t)(a)[1]<<16) |	\
+   ((uint32_t)(a)[2]<<8)  |  (uint32_t)(a)[3])
 
-#define get_uint16(a) (((a)[0]<<8)|(a)[1])
+#define get_uint16(a) (((uint16_t)(a)[0]<<8)|(uint16_t)(a)[1])
 
 #define buf_append_uint32(buf,v) do { uint8_t *c=buf_append((buf),4); \
     put_uint32(c,(v)); } while(0)