support --without-openssl at configure time

Disables and removes dependency on OpenSSL. Many features don't
work and the set of crypto options is greatly restricted. This
will only work on system with native arc4random or /dev/urandom.

Considered highly experimental for now.

1 files changed, 6 insertions, 0 deletions

diff --git a/bufbn.c b/bufbn.c
index b7f7cb12..33ae7f73 100644
--- a/bufbn.c
+++ b/bufbn.c
@@ -20,12 +20,15 @@
 
 #include "includes.h"
 
+#ifdef WITH_OPENSSL
+
 #include <sys/types.h>
 
 #include "buffer.h"
 #include "log.h"
 #include "ssherr.h"
 
+#ifdef WITH_SSH1
 int
 buffer_put_bignum_ret(Buffer *buffer, const BIGNUM *value)
 {
@@ -63,6 +66,7 @@ buffer_get_bignum(Buffer *buffer, BIGNUM *value)
 	if (buffer_get_bignum_ret(buffer, value) == -1)
 		fatal("%s: buffer error", __func__);
 }
+#endif /* WITH_SSH1 */
 
 int
 buffer_put_bignum2_ret(Buffer *buffer, const BIGNUM *value)
@@ -101,3 +105,5 @@ buffer_get_bignum2(Buffer *buffer, BIGNUM *value)
 	if (buffer_get_bignum2_ret(buffer, value) == -1)
 		fatal("%s: buffer error", __func__);
 }
+
+#endif /* WITH_OPENSSL */