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, 3 insertions, 9 deletions

diff --git a/kexecdhc.c b/kexecdhc.c
index 2f7629cca..2019940e5 100644
--- a/kexecdhc.c
+++ b/kexecdhc.c
@@ -26,6 +26,8 @@
 
 #include "includes.h"
 
+#if defined(WITH_OPENSSL) && defined(OPENSSL_HAS_ECC)
+
 #include <sys/types.h>
 
 #include <stdio.h>
@@ -42,8 +44,6 @@
 #include "dh.h"
 #include "ssh2.h"
 
-#ifdef OPENSSL_HAS_ECC
-
 #include <openssl/ecdh.h>
 
 void
@@ -156,10 +156,4 @@ kexecdh_client(Kex *kex)
         BN_clear_free(shared_secret);
         kex_finish(kex);
 }
-#else /* OPENSSL_HAS_ECC */
-void
-kexecdh_client(Kex *kex)
-{
-        fatal("ECC support is not enabled");
-}
-#endif /* OPENSSL_HAS_ECC */
+#endif /* defined(WITH_OPENSSL) && defined(OPENSSL_HAS_ECC) */