X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/8f8ed8f4e50fd98aa43ee69971cac8bda55760f1..c4cca79156ef5651e90772bae5f4aa11f669907d:/apt-pkg/contrib/sha2_internal.cc?ds=sidebyside

diff --git a/apt-pkg/contrib/sha2_internal.cc b/apt-pkg/contrib/sha2_internal.cc
index 10b82dec4..6d27e8f2b 100644
--- a/apt-pkg/contrib/sha2_internal.cc
+++ b/apt-pkg/contrib/sha2_internal.cc
@@ -31,6 +31,7 @@
  *
  * $Id: sha2.c,v 1.1 2001/11/08 00:01:51 adg Exp adg $
  */
+#include <config.h>
 
 #include <string.h>	/* memcpy()/memset() or bcopy()/bzero() */
 #include <assert.h>	/* assert() */
@@ -219,9 +220,9 @@ typedef u_int64_t sha2_word64;	/* Exactly 8 bytes */
  * library -- they are intended for private internal visibility/use
  * only.
  */
-void SHA512_Last(SHA512_CTX*);
-void SHA256_Transform(SHA256_CTX*, const sha2_word32*);
-void SHA512_Transform(SHA512_CTX*, const sha2_word64*);
+static void SHA512_Last(SHA512_CTX*);
+static void SHA256_Transform(SHA256_CTX*, const sha2_word32*);
+static void SHA512_Transform(SHA512_CTX*, const sha2_word64*);
 
 
 /*** SHA-XYZ INITIAL HASH VALUES AND CONSTANTS ************************/
@@ -379,7 +380,7 @@ void SHA256_Init(SHA256_CTX* context) {
 	(h) = T1 + Sigma0_256(a) + Maj((a), (b), (c)); \
 	j++
 
-void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
+static void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
 	sha2_word32	a, b, c, d, e, f, g, h, s0, s1;
 	sha2_word32	T1, *W256;
 	int		j;
@@ -437,7 +438,7 @@ void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
 
 #else /* SHA2_UNROLL_TRANSFORM */
 
-void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
+static void SHA256_Transform(SHA256_CTX* context, const sha2_word32* data) {
 	sha2_word32	a, b, c, d, e, f, g, h, s0, s1;
 	sha2_word32	T1, T2, *W256;
 	int		j;
@@ -604,7 +605,12 @@ void SHA256_Final(sha2_byte digest[], SHA256_CTX* context) {
 			*context->buffer = 0x80;
 		}
 		/* Set the bit count: */
-		*(sha2_word64*)&context->buffer[SHA256_SHORT_BLOCK_LENGTH] = context->bitcount;
+		union {
+			sha2_byte* c;
+			sha2_word64* l;
+		} bitcount;
+		bitcount.c = &context->buffer[SHA256_SHORT_BLOCK_LENGTH];
+		*(bitcount.l) = context->bitcount;
 
 		/* Final transform: */
 		SHA256_Transform(context, (sha2_word32*)context->buffer);
@@ -706,7 +712,7 @@ void SHA512_Init(SHA512_CTX* context) {
 	(h) = T1 + Sigma0_512(a) + Maj((a), (b), (c)); \
 	j++
 
-void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
+static void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
 	sha2_word64	a, b, c, d, e, f, g, h, s0, s1;
 	sha2_word64	T1, *W512 = (sha2_word64*)context->buffer;
 	int		j;
@@ -761,7 +767,7 @@ void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
 
 #else /* SHA2_UNROLL_TRANSFORM */
 
-void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
+static void SHA512_Transform(SHA512_CTX* context, const sha2_word64* data) {
 	sha2_word64	a, b, c, d, e, f, g, h, s0, s1;
 	sha2_word64	T1, T2, *W512 = (sha2_word64*)context->buffer;
 	int		j;
@@ -887,7 +893,7 @@ void SHA512_Update(SHA512_CTX* context, const sha2_byte *data, size_t len) {
 	usedspace = freespace = 0;
 }
 
-void SHA512_Last(SHA512_CTX* context) {
+static void SHA512_Last(SHA512_CTX* context) {
 	unsigned int	usedspace;
 
 	usedspace = (context->bitcount[0] >> 3) % SHA512_BLOCK_LENGTH;
@@ -921,8 +927,13 @@ void SHA512_Last(SHA512_CTX* context) {
 		*context->buffer = 0x80;
 	}
 	/* Store the length of input data (in bits): */
-	*(sha2_word64*)&context->buffer[SHA512_SHORT_BLOCK_LENGTH] = context->bitcount[1];
-	*(sha2_word64*)&context->buffer[SHA512_SHORT_BLOCK_LENGTH+8] = context->bitcount[0];
+	union {
+		sha2_byte* c;
+		sha2_word64* l;
+	} bitcount;
+	bitcount.c = &context->buffer[SHA512_SHORT_BLOCK_LENGTH];
+	bitcount.l[0] = context->bitcount[1];
+	bitcount.l[1] = context->bitcount[0];
 
 	/* Final transform: */
 	SHA512_Transform(context, (sha2_word64*)context->buffer);