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-rw-r--r--libssh/client.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/libssh/client.c b/libssh/client.c
index 4cba1807..8064ce24 100644
--- a/libssh/client.c
+++ b/libssh/client.c
@@ -580,6 +580,16 @@ void ssh_connection_callback(ssh_session session){
session->version = 2;
} else if(ssh1 && session->ssh1) {
session->version = 1;
+ } else if(ssh1 && !session->ssh1){
+#ifdef WITH_SSH1
+ ssh_set_error(session, SSH_FATAL,
+ "SSH-1 protocol not available (configure session to allow SSH-1)");
+ goto error;
+#else
+ ssh_set_error(session, SSH_FATAL,
+ "SSH-1 protocol not available (libssh compiled without SSH-1 support)");
+ goto error;
+#endif
} else {
ssh_set_error(session, SSH_FATAL,
"No version of SSH protocol usable (banner: %s)",