From 79fe96155a9486a58c1ce588069975346b4f4a22 Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Fri, 15 May 2015 10:12:05 +0100
Subject: [PATCH] Const-correctness in struct ssh_hash.

The 'bytes' function should take a const void * as input, not a void *.
---
 ssh.h      | 2 +-
 sshsh256.c | 2 +-
 sshsh512.c | 2 +-
 sshsha.c   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/ssh.h b/ssh.h
index 1924d9f1..272bc8b9 100644
--- a/ssh.h
+++ b/ssh.h
@@ -335,7 +335,7 @@ struct ssh_mac {
 
 struct ssh_hash {
     void *(*init)(void); /* also allocates context */
-    void (*bytes)(void *, void *, int);
+    void (*bytes)(void *, const void *, int);
     void (*final)(void *, unsigned char *); /* also frees context */
     int hlen; /* output length in bytes */
     char *text_name;
diff --git a/sshsh256.c b/sshsh256.c
index 76b77efe..b583c9b3 100644
--- a/sshsh256.c
+++ b/sshsh256.c
@@ -200,7 +200,7 @@ static void *sha256_init(void)
     return s;
 }
 
-static void sha256_bytes(void *handle, void *p, int len)
+static void sha256_bytes(void *handle, const void *p, int len)
 {
     SHA256_State *s = handle;
 
diff --git a/sshsh512.c b/sshsh512.c
index b734c735..f0f13510 100644
--- a/sshsh512.c
+++ b/sshsh512.c
@@ -331,7 +331,7 @@ static void *sha512_init(void)
     return s;
 }
 
-static void sha512_bytes(void *handle, void *p, int len)
+static void sha512_bytes(void *handle, const void *p, int len)
 {
     SHA512_State *s = handle;
 
diff --git a/sshsha.c b/sshsha.c
index 4870bba8..4d24e7b2 100644
--- a/sshsha.c
+++ b/sshsha.c
@@ -230,7 +230,7 @@ static void *sha1_init(void)
     return s;
 }
 
-static void sha1_bytes(void *handle, void *p, int len)
+static void sha1_bytes(void *handle, const void *p, int len)
 {
     SHA_State *s = handle;
 
-- 
2.45.2