(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.

1 files changed, 29 insertions, 6 deletions

diff --git a/sunrpc/des_impl.c b/sunrpc/des_impl.c
index dc94e22..702bd02 100644
--- a/sunrpc/des_impl.c
+++ b/sunrpc/des_impl.c
@@ -6,11 +6,10 @@
 /* write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,*/
 /* Boston, MA 02111, USA to obtain a copy. */
 #include <string.h>
-#include <stdint.h>
 #include "des.h"
 
 
-static const uint32_t des_SPtrans[8][64] =
+static const unsigned long des_SPtrans[8][64] =
 {
   {				/* nibble 0 */
     0x00820200, 0x00020000, 0x80800000, 0x80820200,
@@ -156,7 +155,7 @@ static const uint32_t des_SPtrans[8][64] =
     0x00000020, 0x08208000, 0x00208020, 0x00000000,
     0x08000000, 0x08200020, 0x00008000, 0x00208020}};
 
-static const uint32_t des_skb[8][64] =
+static const unsigned long des_skb[8][64] =
 {
   {				/* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
     0x00000000, 0x00000010, 0x20000000, 0x20000010,
@@ -353,6 +352,26 @@ static const uint32_t des_skb[8][64] =
 	(a)=(a)^(t)^(t>>(16-(n))))
 
 
+/* The changes to this macro may help or hinder, depending on the
+ * compiler and the achitecture.  gcc2 always seems to do well :-).
+ * Inspired by Dana How <how@isl.stanford.edu>
+ * DO NOT use the alternative version on machines with 8 byte longs.
+ */
+#ifdef ALT_ECB
+#define D_ENCRYPT(L,R,S) \
+	u=((R^s[S  ])<<2);	\
+	t= R^s[S+1]; \
+	t=((t>>2)+(t<<30)); \
+	L^= \
+	*(const unsigned long *)(des_SP+0x0100+((t    )&0xfc))+ \
+	*(const unsigned long *)(des_SP+0x0300+((t>> 8)&0xfc))+ \
+	*(const unsigned long *)(des_SP+0x0500+((t>>16)&0xfc))+ \
+	*(const unsigned long *)(des_SP+0x0700+((t>>24)&0xfc))+ \
+	*(const unsigned long *)(des_SP+       ((u    )&0xfc))+ \
+  	*(const unsigned long *)(des_SP+0x0200+((u>> 8)&0xfc))+ \
+  	*(const unsigned long *)(des_SP+0x0400+((u>>16)&0xfc))+ \
+ 	*(const unsigned long *)(des_SP+0x0600+((u>>24)&0xfc));
+#else /* original version */
 #define D_ENCRYPT(L,R,S)	\
 	u=(R^s[S  ]); \
 	t=R^s[S+1]; \
@@ -365,20 +384,21 @@ static const uint32_t des_skb[8][64] =
 		des_SPtrans[2][(u>> 8)&0x3f]| \
 		des_SPtrans[4][(u>>16)&0x3f]| \
 		des_SPtrans[6][(u>>24)&0x3f];
+#endif
 
 #define ITERATIONS 16
 
 static const char shifts2[16] =
 {0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0};
 
-static void des_set_key (unsigned char *, unsigned long *) internal_function;
+static void des_set_key (char *, unsigned long *) internal_function;
 static void des_encrypt (unsigned long *, unsigned long *, int)
      internal_function;
 int _des_crypt (char *, unsigned, struct desparams *);
 
 static void
 internal_function
-des_set_key (unsigned char *key, unsigned long *schedule)
+des_set_key (char *key, unsigned long *schedule)
 {
   register unsigned long c, d, t, s;
   register unsigned char *in;
@@ -386,7 +406,7 @@ des_set_key (unsigned char *key, unsigned long *schedule)
   register int i;
 
   k = (unsigned long *) schedule;
-  in = key;
+  in = (unsigned char *) key;
 
   c2l (in, c);
   c2l (in, d);
@@ -444,6 +464,9 @@ internal_function
 des_encrypt (unsigned long *buf, unsigned long *schedule, int encrypt)
 {
   register unsigned long l, r, t, u;
+#ifdef ALT_ECB
+  register const unsigned char *des_SP = (const unsigned char *) des_SPtrans;
+#endif
   register int i;
   register unsigned long *s;