Framework for back-bdb

[openldap] / libraries / liblutil / sha1.c

diff --git a/libraries/liblutil/sha1.c b/libraries/liblutil/sha1.c
index a40fea46115dc1c3b16a836b360c0137f52b3c46..9d97ceb169c165118afe8b363458c9095079cb1f 100644 (file)
--- a/libraries/liblutil/sha1.c
+++ b/libraries/liblutil/sha1.c
@@ -1,3 +1,8 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*     Acquired from:
  *     $OpenBSD: sha1.c,v 1.9 1997/07/23 21:12:32 kstailey Exp $       */
 
@@ -15,6 +20,9 @@
  *   34AA973C D4C4DAA4 F61EEB2B DBAD2731 6534016F
  */
 
+/*
+ * This code assumes uint32 is 32 bits and char is 8 bits
+ */
 
 #include "portable.h"
 #include <ac/string.h>
@@ -22,12 +30,11 @@
 /* include socket.h to get sys/types.h and/or winsock2.h */
 #include <ac/socket.h>
 
-#if defined(HAVE_SYS_PARAM_H)
-#include <sys/param.h>
-#endif
+#include <ac/param.h>
 
 #include "lutil_sha1.h"
 
+/* undefining this will cause pointer alignment errors */
 #define SHA1HANDSOFF           /* Copies data before messing with it. */
 #define rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
 
@@ -36,13 +43,13 @@
  * I got the idea of expanding during the round function from SSLeay
  */
 #if BYTE_ORDER == LITTLE_ENDIAN
-# define blk0(i) (block->l[i] = (rol(block->l[i],24)&0xFF00FF00) \
-    |(rol(block->l[i],8)&0x00FF00FF))
+# define blk0(i) (block[i] = (rol(block[i],24)&0xFF00FF00) \
+    |(rol(block[i],8)&0x00FF00FF))
 #else
-# define blk0(i) block->l[i]
+# define blk0(i) block[i]
 #endif
-#define blk(i) (block->l[i&15] = rol(block->l[(i+13)&15]^block->l[(i+8)&15] \
-    ^block->l[(i+2)&15]^block->l[i&15],1))
+#define blk(i) (block[i&15] = rol(block[(i+13)&15]^block[(i+8)&15] \
+    ^block[(i+2)&15]^block[i&15],1))
 
 /*
  * (R0+R1), R2, R3, R4 are the different operations (rounds) used in SHA1
@@ -61,18 +68,12 @@ void
 lutil_SHA1Transform( uint32 *state, const unsigned char *buffer )
 {
     uint32 a, b, c, d, e;
-    typedef union {
-       unsigned char c[64];
-       u_int l[16];
-    } CHAR64LONG16;
-    CHAR64LONG16 *block;
 
 #ifdef SHA1HANDSOFF
-    static unsigned char workspace[64];
-    block = (CHAR64LONG16 *)workspace;
-    (void)memcpy(block, buffer, 64);
+    uint32 block[16];
+    (void)AC_MEMCPY(block, buffer, 64);
 #else
-    block = (CHAR64LONG16 *)buffer;
+    uint32 *block = (u_int32 *) buffer;
 #endif
 
     /* Copy context->state[] to working vars */
@@ -140,7 +141,7 @@ void
 lutil_SHA1Update(
     lutil_SHA1_CTX     *context,
     const unsigned char        *data,
-    u_int              len
+    uint32             len
 )
 {
     u_int i, j;
@@ -150,7 +151,7 @@ lutil_SHA1Update(
        context->count[1] += (len>>29)+1;
     j = (j >> 3) & 63;
     if ((j + len) > 63) {
-       (void)memcpy(&context->buffer[j], data, (i = 64-j));
+       (void)AC_MEMCPY(&context->buffer[j], data, (i = 64-j));
        lutil_SHA1Transform(context->state, context->buffer);
        for ( ; i + 63 < len; i += 64)
            lutil_SHA1Transform(context->state, &data[i]);
@@ -158,7 +159,7 @@ lutil_SHA1Update(
     } else {
        i = 0;
     }
-    (void)memcpy(&context->buffer[j], &data[i], len - i);
+    (void)AC_MEMCPY(&context->buffer[j], &data[i], len - i);
 }
 
 
@@ -202,7 +203,7 @@ static char rcsid[] = "$OpenBSD: sha1hl.c,v 1.1 1997/07/12 20:06:03 millert Exp
 #endif /* LIBC_SCCS and not lint */
 
 #include <stdio.h>
-#include <stdlib.h>
+#include <ac/stdlib.h>
 
 #include <ac/errno.h>
 #include <ac/unistd.h>