Tcl Source Code

Artifact 29f992274bcc8ecd160f61f06756dbed6e092a2b:

Index: generic/sample.c
===================================================================
RCS file: /cvsroot/tcl/sampleextension/generic/sample.c,v
retrieving revision 1.1
diff -u -r1.1 sample.c
--- generic/sample.c	12 Mar 2002 04:41:48 -0000	1.1
+++ generic/sample.c	8 Dec 2003 16:25:24 -0000
@@ -35,6 +35,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <assert.h>
 #include "sample.h"
 
 #define Rol(value, bits) (((value) << (bits)) | ((value) >> (32 - (bits))))
@@ -93,18 +94,19 @@
 
 void
 SHA1Transform(state, buffer)
-    unsigned long state[5];	/* State variable */
+    sha_uint32_t state[5];	/* State variable */
     unsigned char buffer[64];	/* Modified buffer */
 {
 #if (!defined(BIG_ENDIAN) && !defined(LITTLE_ENDIAN))
     unsigned char *p;
 #endif
-    unsigned long a, b, c, d, e;
+    sha_uint32_t a, b, c, d, e;
     typedef union {
 	unsigned char c[64];
-	unsigned long l[16];
+	sha_uint32_t l[16];
     } CHAR64LONG16;
     CHAR64LONG16* block;
+
 #ifdef SHA1HANDSOFF
     static unsigned char workspace[64];
     block = (CHAR64LONG16*)workspace;
@@ -113,6 +115,8 @@
     block = (CHAR64LONG16*)buffer;
 #endif
 
+    assert(sizeof(block->c) == sizeof(block->l));
+
     /*
      * Copy context->state[] to working vars
      */
@@ -275,7 +279,7 @@
     SHA1_CTX* context;		/* Context to pad */
     unsigned char digest[20];	/* Returned message digest */
 {
-    unsigned long i, j;
+    sha_uint32_t i, j;
     unsigned char finalcount[8];
 
     for (i = 0; i < 8; i++) {
@@ -298,7 +302,7 @@
     SHA1Update(context, finalcount, 8);
     for (i = 0; i < 20; i++) {
         digest[i] = (unsigned char)
-         ((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
+		((context->state[i>>2] >> ((3-(i & 3)) * 8) ) & 255);
     }
 
     /*
@@ -306,9 +310,7 @@
      */
 
     i = j = 0;
-    memset(context->buffer, 0, 64);
-    memset(context->state, 0, 20);
-    memset(context->count, 0, 8);
+    memset(context, 0, sizeof(SHA1_CTX));
     memset(&finalcount, 0, 8);
 
     /*
Index: generic/sample.h
===================================================================
RCS file: /cvsroot/tcl/sampleextension/generic/sample.h,v
retrieving revision 1.2
diff -u -r1.2 sample.h
--- generic/sample.h	3 Dec 2003 08:04:32 -0000	1.2
+++ generic/sample.h	8 Dec 2003 16:25:24 -0000
@@ -27,9 +27,20 @@
 #define TCL_STORAGE_CLASS DLLEXPORT
 #endif /* BUILD_sample */
 
+#ifdef HAVE_INTTYPES_H
+#   include <inttypes.h>
+typedef uint32_t sha_uint32_t;
+#else
+#   if ((1<<31)<0)
+typedef unsigned long sha_uint32_t;
+#   else
+typedef unsigned int sha_uint32_t;
+#   endif
+#endif
+
 typedef struct {
-    unsigned long state[5];
-    unsigned long count[2];
+    sha_uint32_t state[5];
+    sha_uint32_t count[2];
     unsigned char buffer[64];
 } SHA1_CTX;