From 8aae6ff0d9e3b78204288f1db671ccd60614e10b Mon Sep 17 00:00:00 2001
From: Darren Tucker <dtucker@zip.com.au>
Date: Sat, 7 Mar 2009 12:01:47 +1100
Subject: [PATCH]  - (dtucker) [schnorr.c openbsd-compat/openssl-compat.{c,h}]
 Add    EVP_DigestUpdate to the OLD_EVP compatibility functions and tell
 schnorr.c    to use them.  Allows building with older OpenSSL versions.

---
 ChangeLog                       | 3 +++
 openbsd-compat/openssl-compat.c | 9 ++++++++-
 openbsd-compat/openssl-compat.h | 3 ++-
 schnorr.c                       | 2 ++
 4 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 6964dcffa..410c766af 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -2,6 +2,9 @@
  - (dtucker) [contrib/aix/buildbff.sh] Only try to rename ssh_prng_cmds if it
    exists (it's not created if OpenSSL's PRNG is self-seeded, eg if the OS
    has a /dev/random).
+ - (dtucker) [schnorr.c openbsd-compat/openssl-compat.{c,h}] Add
+   EVP_DigestUpdate to the OLD_EVP compatibility functions and tell schnorr.c
+   to use them.  Allows building with older OpenSSL versions.
 
 20090306
  - (djm) OpenBSD CVS Sync
diff --git a/openbsd-compat/openssl-compat.c b/openbsd-compat/openssl-compat.c
index 49238ba80..f5435784b 100644
--- a/openbsd-compat/openssl-compat.c
+++ b/openbsd-compat/openssl-compat.c
@@ -1,4 +1,4 @@
-/* $Id: openssl-compat.c,v 1.6 2008/02/28 08:13:52 dtucker Exp $ */
+/* $Id: openssl-compat.c,v 1.7 2009/03/07 01:01:47 dtucker Exp $ */
 
 /*
  * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
@@ -47,6 +47,13 @@ ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *evp)
 	EVP_CIPHER_CTX_cleanup(evp);
 	return 1;
 }
+
+int
+ssh_EVP_DigestUpdate(EVP_MD_CTX *ctx, const void *d, unsigned int cnt)
+{
+	EVP_DigestUpdate(ctx, d, cnt);
+	return 1;
+}
 #endif
 
 #ifdef	USE_OPENSSL_ENGINE
diff --git a/openbsd-compat/openssl-compat.h b/openbsd-compat/openssl-compat.h
index 6a1bed5b2..945a7a300 100644
--- a/openbsd-compat/openssl-compat.h
+++ b/openbsd-compat/openssl-compat.h
@@ -1,4 +1,4 @@
-/* $Id: openssl-compat.h,v 1.12 2008/02/28 08:22:04 dtucker Exp $ */
+/* $Id: openssl-compat.h,v 1.13 2009/03/07 01:01:47 dtucker Exp $ */
 
 /*
  * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
@@ -78,6 +78,7 @@ extern const EVP_CIPHER *evp_acss(void);
 #  define EVP_CipherInit(a,b,c,d,e)	ssh_EVP_CipherInit((a),(b),(c),(d),(e))
 #  define EVP_Cipher(a,b,c,d)		ssh_EVP_Cipher((a),(b),(c),(d))
 #  define EVP_CIPHER_CTX_cleanup(a)	ssh_EVP_CIPHER_CTX_cleanup((a))
+#  define EVP_DigestUpdate(a,b,c)	ssh_EVP_DigestUpdate((a),(b),(c))
 # endif /* SSH_OLD_EVP */
 
 # ifdef USE_OPENSSL_ENGINE
diff --git a/schnorr.c b/schnorr.c
index 7b97b5565..c17ff3241 100644
--- a/schnorr.c
+++ b/schnorr.c
@@ -42,6 +42,8 @@
 
 #include "schnorr.h"
 
+#include "openbsd-compat/openssl-compat.h"
+
 /* #define SCHNORR_DEBUG */		/* Privacy-violating debugging */
 /* #define SCHNORR_MAIN */		/* Include main() selftest */