From 3ea78f5a20fe80bd819fb643053a190ce42ff58a Mon Sep 17 00:00:00 2001
From: Marcus Brinkmann <mb@g10code.com>
Date: Tue, 25 Jun 2002 12:10:27 +0000
Subject: [PATCH] 2002-06-25  Marcus Brinkmann  <marcus@g10code.de>

	* engine-gpgsm.c (_gpgme_gpgsm_op_export): Only export the keys
	listed in RECP.
	* export.c (gpgme_op_export): If no data was returned, return
	GPGME_No_Recipients.
---
 gpgme/ChangeLog      |  7 +++++++
 gpgme/engine-gpgsm.c | 44 +++++++++++++++++++++++++++++++++++++++++---
 gpgme/export.c       |  8 +++++++-
 3 files changed, 55 insertions(+), 4 deletions(-)

diff --git a/gpgme/ChangeLog b/gpgme/ChangeLog
index cd73a3e2..7ac84e60 100644
--- a/gpgme/ChangeLog
+++ b/gpgme/ChangeLog
@@ -1,3 +1,10 @@
+2002-06-25  Marcus Brinkmann  <marcus@g10code.de>
+
+	* engine-gpgsm.c (_gpgme_gpgsm_op_export): Only export the keys
+	listed in RECP.
+	* export.c (gpgme_op_export): If no data was returned, return
+	GPGME_No_Recipients.
+
 2002-06-25  Marcus Brinkmann  <marcus@g10code.de>
 
 	* engine-gpgsm.c (_gpgme_gpgsm_op_export): Implement.
diff --git a/gpgme/engine-gpgsm.c b/gpgme/engine-gpgsm.c
index 6115b25b..166d97bd 100644
--- a/gpgme/engine-gpgsm.c
+++ b/gpgme/engine-gpgsm.c
@@ -759,14 +759,52 @@ GpgmeError
 _gpgme_gpgsm_op_export (GpgsmObject gpgsm, GpgmeRecipients recp,
 			GpgmeData keydata, int use_armor)
 {
-  GpgmeError err;
+  GpgmeError err = 0;
+  char *cmd = NULL;
+  int cmdi;
+  int cmdlen = 32;
 
   if (!gpgsm)
     return mk_error (Invalid_Value);
 
-  gpgsm->command = xtrystrdup ("EXPORT");
-  if (!gpgsm->command)
+  cmd = malloc (cmdlen);
+  if (!cmd)
     return mk_error (Out_Of_Core);
+  strcpy (cmd, "EXPORT");
+  cmdi = 6;
+
+  if (recp)
+    {
+      void *ec;
+      const char *s;
+
+      err = gpgme_recipients_enum_open (recp, &ec);
+      while (!err && (s = gpgme_recipients_enum_read (recp, &ec)))
+	{
+	  int slen = strlen (s);
+	  /* New string is old string + ' ' + s + '\0'.  */
+	  if (cmdlen < cmdi + 1 + slen + 1)
+	    {
+	      char *newcmd = xtryrealloc (cmd, cmdlen * 2);
+	      if (!newcmd)
+		{
+		  xfree (cmd);
+		  return mk_error (Out_Of_Core);
+		}
+	      cmd = newcmd;
+	      cmdlen *= 2;
+	    }
+	  cmd[cmdi++] = ' ';
+	  strcpy (cmd + cmdi, s);
+	  cmdi += slen;
+	}
+      if (!err)
+	err = gpgme_recipients_enum_close (recp, &ec);
+      if (err)
+	return err;
+    }
+
+  gpgsm->command = cmd;
 
   gpgsm->output_cb.data = keydata;
   err = gpgsm_set_fd (gpgsm->assuan_ctx, "OUTPUT", gpgsm->output_fd_server,
diff --git a/gpgme/export.c b/gpgme/export.c
index c222861e..968de2e1 100644
--- a/gpgme/export.c
+++ b/gpgme/export.c
@@ -99,6 +99,12 @@ gpgme_op_export (GpgmeCtx ctx, GpgmeRecipients recipients, GpgmeData keydata)
 {
   GpgmeError err = _gpgme_op_export_start (ctx, 1, recipients, keydata);
   if (!err)
-    err = _gpgme_wait_one (ctx);
+    {
+      err = _gpgme_wait_one (ctx);
+      /* XXX We don't get status information.  */
+      if (!ctx->error && gpgme_data_get_type (keydata) == GPGME_DATA_TYPE_NONE)
+	ctx->error = mk_error (No_Recipients);
+      err = ctx->error;
+    }
   return err;
 }