Unify GET_32BIT()/PUT_32BIT() et al from numerous source files into misc.h.

[u/mdw/putty] / misc.h

diff --git a/misc.h b/misc.h
index ae883e1..7346779 100644 (file)
--- a/misc.h
+++ b/misc.h
@@ -80,4 +80,48 @@ void debug_memdump(void *buf, int len, int L);
 #define max(x,y) ( (x) > (y) ? (x) : (y) )
 #endif
 
+#define GET_32BIT_LSB_FIRST(cp) \
+  (((unsigned long)(unsigned char)(cp)[0]) | \
+  ((unsigned long)(unsigned char)(cp)[1] << 8) | \
+  ((unsigned long)(unsigned char)(cp)[2] << 16) | \
+  ((unsigned long)(unsigned char)(cp)[3] << 24))
+
+#define PUT_32BIT_LSB_FIRST(cp, value) ( \
+  (cp)[0] = (unsigned char)(value), \
+  (cp)[1] = (unsigned char)((value) >> 8), \
+  (cp)[2] = (unsigned char)((value) >> 16), \
+  (cp)[3] = (unsigned char)((value) >> 24) )
+
+#define GET_16BIT_LSB_FIRST(cp) \
+  (((unsigned long)(unsigned char)(cp)[0]) | \
+  ((unsigned long)(unsigned char)(cp)[1] << 8))
+
+#define PUT_16BIT_LSB_FIRST(cp, value) ( \
+  (cp)[0] = (unsigned char)(value), \
+  (cp)[1] = (unsigned char)((value) >> 8) )
+
+#define GET_32BIT_MSB_FIRST(cp) \
+  (((unsigned long)(unsigned char)(cp)[0] << 24) | \
+  ((unsigned long)(unsigned char)(cp)[1] << 16) | \
+  ((unsigned long)(unsigned char)(cp)[2] << 8) | \
+  ((unsigned long)(unsigned char)(cp)[3]))
+
+#define GET_32BIT(cp) GET_32BIT_MSB_FIRST(cp)
+
+#define PUT_32BIT_MSB_FIRST(cp, value) ( \
+  (cp)[0] = (unsigned char)((value) >> 24), \
+  (cp)[1] = (unsigned char)((value) >> 16), \
+  (cp)[2] = (unsigned char)((value) >> 8), \
+  (cp)[3] = (unsigned char)(value) )
+
+#define PUT_32BIT(cp, value) PUT_32BIT_MSB_FIRST(cp, value)
+
+#define GET_16BIT_MSB_FIRST(cp) \
+  (((unsigned long)(unsigned char)(cp)[0] << 8) | \
+  ((unsigned long)(unsigned char)(cp)[1]))
+
+#define PUT_16BIT_MSB_FIRST(cp, value) ( \
+  (cp)[0] = (unsigned char)((value) >> 8), \
+  (cp)[1] = (unsigned char)(value) )
+
 #endif