refactor libcrypto initialisation

Don't call OpenSSL_add_all_algorithms() unless OpenSSL actually
supports it.

Move all libcrypto initialisation to a single function, and call that
from seed_rng() that is called early in each tool's main().

Prompted by patch from Rosen Penev

1 files changed, 2 insertions, 7 deletions

diff --git a/ssh.c b/ssh.c
index 1e471f5c..1ac903d1 100644
--- a/ssh.c
+++ b/ssh.c
@@ -610,6 +610,8 @@ main(int ac, char **av)
 	av = saved_av;
 #endif
 
+	seed_rng();
+
 	/*
 	 * Discard other fds that are hanging around. These can cause problem
 	 * with backgrounded ssh processes started by ControlPersist.
@@ -1036,11 +1038,6 @@ main(int ac, char **av)
 
 	host_arg = xstrdup(host);
 
-#ifdef WITH_OPENSSL
-	OpenSSL_add_all_algorithms();
-	ERR_load_crypto_strings();
-#endif
-
 	/* Initialize the command to execute on remote host. */
 	if ((command = sshbuf_new()) == NULL)
 		fatal("sshbuf_new failed");
@@ -1264,8 +1261,6 @@ main(int ac, char **av)
 		tty_flag = 0;
 	}
 
-	seed_rng();
-
 	if (options.user == NULL)
 		options.user = xstrdup(pw->pw_name);