agent,w32: Support Win32-OpenSSH emulation by gpg-agent.

* agent/agent.h (start_command_handler_ssh_stream): New.
* agent/command-ssh.c (start_command_handler_ssh_stream): New.
* agent/gpg-agent.c (oWin32OpenSSHSupport): New.
(W32_DEFAILT_AGENT_PIPE_NAME): New.
(main): Add oWin32OpenSSHSupport support.
(win32_openssh_thread): New.
(handle_connections): Spawn win32_openssh_thread.
* configure.ac (NEED_GPGRT_VERSION): Require libgpg-error 1.46.

--

GnuPG-bug-id: 3883
Signed-off-by: NIIBE Yutaka <[email protected]>

1 files changed, 38 insertions, 32 deletions

diff --git a/agent/command-ssh.c b/agent/command-ssh.c
index ce2b5df9d..50622850c 100644
--- a/agent/command-ssh.c
+++ b/agent/command-ssh.c
@@ -3768,67 +3768,73 @@ get_client_info (gnupg_fd_t fd, struct peer_info_s *out)
 }
 
 
-/* Start serving client on SOCK_CLIENT.  */
+/* Start serving client on STREAM.  */
 void
-start_command_handler_ssh (ctrl_t ctrl, gnupg_fd_t sock_client)
+start_command_handler_ssh_stream (ctrl_t ctrl, estream_t stream)
 {
-  estream_t stream_sock = NULL;
   gpg_error_t err;
   int ret;
-  struct peer_info_s peer_info;
-  es_syshd_t syshd;
-
-  syshd.type = ES_SYSHD_SOCK;
-  syshd.u.sock = sock_client;
 
   err = agent_copy_startup_env (ctrl);
   if (err)
     goto out;
 
-  get_client_info (sock_client, &peer_info);
-  ctrl->client_pid = peer_info.pid;
-  ctrl->client_uid = peer_info.uid;
-
-  /* Create stream from socket.  */
-  stream_sock = es_sysopen (&syshd, "r+");
-  if (!stream_sock)
-    {
-      err = gpg_error_from_syserror ();
-      log_error (_("failed to create stream from socket: %s\n"),
-		 gpg_strerror (err));
-      goto out;
-    }
   /* We have to disable the estream buffering, because the estream
      core doesn't know about secure memory.  */
-  ret = es_setvbuf (stream_sock, NULL, _IONBF, 0);
+  ret = es_setvbuf (stream, NULL, _IONBF, 0);
   if (ret)
     {
-      err = gpg_error_from_syserror ();
-      log_error ("failed to disable buffering "
-                 "on socket stream: %s\n", gpg_strerror (err));
+      log_error ("failed to disable buffering on socket stream: %s\n",
+                 strerror (errno));
       goto out;
     }
 
   /* Main processing loop. */
-  while ( !ssh_request_process (ctrl, stream_sock) )
+  while ( !ssh_request_process (ctrl, stream) )
     {
       /* Check whether we have reached EOF before trying to read
-	 another request.  */
+         another request.  */
       int c;
 
-      c = es_fgetc (stream_sock);
+      c = es_fgetc (stream);
       if (c == EOF)
         break;
-      es_ungetc (c, stream_sock);
+      es_ungetc (c, stream);
     }
 
   /* Reset the daemon in case it has been used. */
   agent_reset_daemon (ctrl);
 
-
  out:
-  if (stream_sock)
-    es_fclose (stream_sock);
+  es_fclose (stream);
+}
+
+
+/* Start serving client on SOCK_CLIENT.  */
+void
+start_command_handler_ssh (ctrl_t ctrl, gnupg_fd_t sock_client)
+{
+  estream_t stream_sock;
+  struct peer_info_s peer_info;
+  es_syshd_t syshd;
+
+  syshd.type = ES_SYSHD_SOCK;
+  syshd.u.sock = sock_client;
+
+  get_client_info (sock_client, &peer_info);
+  ctrl->client_pid = peer_info.pid;
+  ctrl->client_uid = peer_info.uid;
+
+  /* Create stream from socket.  */
+  stream_sock = es_sysopen (&syshd, "r+");
+  if (!stream_sock)
+    {
+      log_error (_("failed to create stream from socket: %s\n"),
+                 strerror (errno));
+      return;
+    }
+
+  start_command_handler_ssh_stream (ctrl, stream_sock);
 }