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, 0 deletions

diff --git a/sftp-server-main.c b/sftp-server-main.c
index c6ccd623e..6230d897d 100644
--- a/sftp-server-main.c
+++ b/sftp-server-main.c
@@ -43,6 +43,8 @@ main(int argc, char **argv)
         /* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */
         sanitise_stdfd();
 
+        seed_rng();
+
         if ((user_pw = getpwuid(getuid())) == NULL) {
                 fprintf(stderr, "No user found for uid %lu\n",
                     (u_long)getuid());