ssh server: print host key

1 files changed, 18 insertions, 1 deletions

diff --git a/ssh/server.c b/ssh/server.c
index fa63d34..5a2b162 100644
--- a/ssh/server.c
+++ b/ssh/server.c
@@ -404,6 +404,23 @@ int main(void) {
 		return 1;
 	}
 
+	ssh_key host_key;
+	if (ssh_pki_import_privkey_file("host_key", NULL, NULL, NULL, &host_key) != SSH_OK) {
+		fprintf(stderr, "Failed to read host private key file 'host_key'\n");
+		return 1;
+	}
+
+	size_t host_key_hash_length = 0;
+	unsigned char *host_key_hash = NULL;
+	if (ssh_get_publickey_hash(host_key, SSH_PUBLICKEY_HASH_SHA256, &host_key_hash, &host_key_hash_length) != SSH_OK) {
+		fprintf(stderr, "Failed to hash host key!\n");
+		return 1;
+	}
+
+	printf("Host key hash: ");
+	fflush(stdout);
+	ssh_print_hash(SSH_PUBLICKEY_HASH_SHA256, host_key_hash, host_key_hash_length);
+
 	ssh_bind srvbind = ssh_bind_new();
 	CHECK(srvbind, srvbind);
 
@@ -411,7 +428,7 @@ int main(void) {
 	CHECK(srvbind, ssh_bind_options_set(srvbind, SSH_BIND_OPTIONS_PROCESS_CONFIG, &procconfig) == SSH_OK);
 	int port = 2222;
 	CHECK(srvbind, ssh_bind_options_set(srvbind, SSH_BIND_OPTIONS_BINDPORT, &port) == SSH_OK);
-	CHECK(srvbind, ssh_bind_options_set(srvbind, SSH_BIND_OPTIONS_HOSTKEY, "host_key") == SSH_OK);
+	CHECK(srvbind, ssh_bind_options_set(srvbind, SSH_BIND_OPTIONS_IMPORT_KEY, host_key) == SSH_OK);
 	const char *ciphers_str = "aes256-gcm@openssh.com,aes256-ctr,aes256-cbc";
 	CHECK(srvbind, ssh_bind_options_set(srvbind, SSH_BIND_OPTIONS_CIPHERS_C_S, ciphers_str) == SSH_OK);
 	CHECK(srvbind, ssh_bind_options_set(srvbind, SSH_BIND_OPTIONS_CIPHERS_S_C, ciphers_str) == SSH_OK);