Make the testing ping use all supported algorithms

Previously, it would use only the default set, which makes some tests failing
including the DSA ones and disabled RSA with SHA1.

Signed-off-by: Jakub Jelen <jjelen@redhat.com>
Reviewed-by: Anderson Toshiyuki Sasaki <ansasaki@redhat.com>

tests/CMakeLists.txt

@@ -181,7 +181,7 @@ if (CLIENT_TESTING OR SERVER_TESTING)
     # ssh_ping
     add_executable(ssh_ping ssh_ping.c)
     target_compile_options(ssh_ping PRIVATE ${DEFAULT_C_COMPILE_FLAGS})
-    target_link_libraries(ssh_ping ssh::ssh)
+    target_link_libraries(ssh_ping ssh::static)
 
     # homedir will be used in passwd
     set(HOMEDIR ${CMAKE_CURRENT_BINARY_DIR}/home)

tests/ssh_ping.c

@@ -14,15 +14,19 @@ The goal is to show the API in action. It's not a reference on how terminal
 clients must be made or how a client should react.
 */
 
+#include "config.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdbool.h>
 #include <libssh/libssh.h>
+#include <libssh/kex.h>
 
 int main(int argc, char **argv)
 {
     const char *banner = NULL;
     ssh_session session = NULL;
+    const char *hostkeys = NULL;
     int rc = 1;
 
     bool process_config = false;
@@ -32,6 +36,8 @@ int main(int argc, char **argv)
         goto out;
     }
 
+    ssh_init();
+
     session = ssh_new();
     if (session == NULL) {
         goto out;
@@ -54,6 +60,13 @@ int main(int argc, char **argv)
         goto out;
     }
 
+    /* Enable all supported algorithms (including DSA) */
+    hostkeys = ssh_kex_get_supported_method(SSH_HOSTKEYS);
+    rc = ssh_options_set(session, SSH_OPTIONS_HOSTKEYS, hostkeys);
+    if (rc < 0) {
+        goto out;
+    }
+
     rc = ssh_connect(session);
     if (rc != SSH_OK) {
         fprintf(stderr, "Connection failed : %s\n", ssh_get_error(session));
@@ -71,6 +84,7 @@ int main(int argc, char **argv)
 
 out:
     ssh_free(session);
+    ssh_finalize();
     return rc;
 }