pop3d: bugfixes.

* include/mailutils/message.h (mu_message_set_stream): Mark as deprecated.
* pop3d/retr.c (pop3d_retr): Rewind the stream obtained from
mu_message_get_stream.
* pop3d/top.c (pop3d_top): Rewind the streams obtained from
mu_body_get_stream and mu_header_get_stream.

@@ -55,7 +55,9 @@ extern int mu_message_set_body (mu_message_t, mu_body_t, void *);
 extern int mu_message_get_stream (mu_message_t, mu_stream_t *)
                                    __attribute__((deprecated));
 extern int mu_message_get_streamref (mu_message_t, mu_stream_t *);
-extern int mu_message_set_stream (mu_message_t, mu_stream_t, void *);
+
+extern int mu_message_set_stream (mu_message_t, mu_stream_t, void *)
+  __attribute__((deprecated));
 
 extern int mu_message_get_attribute (mu_message_t, mu_attribute_t *);
 extern int mu_message_set_attribute (mu_message_t, mu_attribute_t, void *);

@@ -45,7 +45,10 @@ pop3d_retr (char *arg)
     return ERR_MESG_DELE;
 
   /* FIXME: Use crlf filter + mu_stream_copy instead of the loop below */
-  mu_message_get_stream (msg, &stream);
+  if (mu_message_get_stream (msg, &stream)
+      || mu_stream_seek (stream, 0, MU_SEEK_SET, NULL))
+    return ERR_UNKNOWN;
+  
   pop3d_outf ("+OK\r\n");
 
   prev_nl = 1;

@@ -60,7 +60,9 @@ pop3d_top (char *arg)
   /* Header.  */
   mu_message_get_header (msg, &hdr);
   /* FIXME: Use crlf filter + mu_stream_copy instead of the below loop */
-  mu_header_get_stream (hdr, &stream);
+  if (mu_header_get_stream (hdr, &stream)
+      || mu_stream_seek (stream, 0, MU_SEEK_SET, NULL))
+    return ERR_UNKNOWN;
   n = 0;
   while (mu_stream_readline (stream, buf, sizeof(buf), &n) == 0
 	 && n > 0)
@@ -82,7 +84,9 @@ pop3d_top (char *arg)
 
       mu_message_get_body (msg, &body);
       /* FIXME: Use the crlf filter + mu_stream_copy */
-      mu_body_get_stream (body, &stream);
+      if (mu_body_get_stream (body, &stream)
+	  || mu_stream_seek (stream, 0, MU_SEEK_SET, NULL))
+	return ERR_UNKNOWN;
       n = 0;
       while (mu_stream_readline (stream, buf, sizeof(buf), &n) == 0
 	     && n > 0 && lines > 0)