wks: New option --status-fd for gpg-wks-client.

* tools/wks-util.c: Include status.h.
(statusfp): New global var.
(wks_set_status_fd): New func.
(wks_write_status): New func.
* tools/gpg-wks-client.c: Include status.h.
(oStatusFD): New constant.
(opts): New option --status-fd.
(parse_arguments): Handle that option.
(main): Return STATUS_SUCCESS or STATUS_FAILURE.
--

This option is useful in case gpg-wks-client is spawed using a double
fork approach which does not allow to return the exit code.

Signed-off-by: Werner Koch <[email protected]>

1 files changed, 60 insertions, 0 deletions

diff --git a/tools/wks-util.c b/tools/wks-util.c
index f4f44f6b2..e6f6b7acd 100644
--- a/tools/wks-util.c
+++ b/tools/wks-util.c
@@ -23,6 +23,7 @@
 #include <string.h>
 
 #include "util.h"
+#include "status.h"
 #include "ccparray.h"
 #include "exectool.h"
 #include "mbox-util.h"
@@ -30,6 +31,65 @@
 #include "send-mail.h"
 #include "gpg-wks.h"
 
+/* The stream to output the status information.  Output is disabled if
+   this is NULL.  */
+static estream_t statusfp;
+
+
+
+/* Set the status FD.  */
+void
+wks_set_status_fd (int fd)
+{
+  static int last_fd = -1;
+
+  if (fd != -1 && last_fd == fd)
+    return;
+
+  if (statusfp && statusfp != es_stdout && statusfp != es_stderr)
+    es_fclose (statusfp);
+  statusfp = NULL;
+  if (fd == -1)
+    return;
+
+  if (fd == 1)
+    statusfp = es_stdout;
+  else if (fd == 2)
+    statusfp = es_stderr;
+  else
+    statusfp = es_fdopen (fd, "w");
+  if (!statusfp)
+    {
+      log_fatal ("can't open fd %d for status output: %s\n",
+                 fd, gpg_strerror (gpg_error_from_syserror ()));
+    }
+  last_fd = fd;
+}
+
+
+/* Write a status line with code NO followed by the outout of the
+ * printf style FORMAT.  The caller needs to make sure that LFs and
+ * CRs are not printed.  */
+void
+wks_write_status (int no, const char *format, ...)
+{
+  va_list arg_ptr;
+
+  if (!statusfp)
+    return;  /* Not enabled.  */
+
+  es_fputs ("[GNUPG:] ", statusfp);
+  es_fputs (get_status_string (no), statusfp);
+  if (format)
+    {
+      es_putc (' ', statusfp);
+      va_start (arg_ptr, format);
+      es_vfprintf (statusfp, format, arg_ptr);
+      va_end (arg_ptr);
+    }
+  es_putc ('\n', statusfp);
+}
+
 
 
 /* Helper for wks_list_key.  */