Make NDMP ImageStream buffer dynamically allocated size.

Instead of hardcoding the Image Stream buffer to 100 K size it to the
actual recordsize in use by the NDMP Job. This way we don't have to
check if the recordsize specified is outside the allowable size.

src/ndmp/ndma_image_stream.c

@@ -93,6 +93,13 @@ ndmis_initialize (struct ndm_session *sess)
 	NDMOS_MACRO_ZEROFILL (sess->plumb.image_stream);
 	NDMOS_MACRO_ZEROFILL (&sess->plumb.image_stream->chan);
 
+	sess->plumb.image_stream->buf = NDMOS_API_MALLOC (sess->control_acb->job.record_size);
+	if (!sess->plumb.image_stream->buf) {
+		NDMOS_API_FREE (sess->plumb.image_stream);
+		return -1;
+	}
+	NDMOS_MACRO_ZEROFILL (sess->plumb.image_stream->buf);
+
 	ndmis_reinit_remote (sess);
 
 	sess->plumb.image_stream->data_ep.name = "DATA";
@@ -123,11 +130,13 @@ ndmis_destroy (struct ndm_session *sess)
 		return 0;
 	}
 
+	NDMOS_API_FREE (sess->plumb.image_stream->buf);
 	NDMOS_API_FREE (sess->plumb.image_stream);
 	sess->plumb.image_stream = NULL;
 
 	return 0;
 }
+
 /* Belay -- Cancel partially issued activation/start */
 int
 ndmis_belay (struct ndm_session *sess)

src/ndmp/ndmagents.h

@@ -932,10 +932,6 @@ extern int		ndmra_destroy (struct ndm_session *sess);
  ****************************************************************
  */
 
-#ifndef NDM_N_IMAGE_STREAM_BUF
-#define NDM_N_IMAGE_STREAM_BUF	(100*1024)
-#endif
-
 enum ndmis_connect_status {
 	NDMIS_CONN_IDLE = 0,
 	NDMIS_CONN_LISTEN,
@@ -975,7 +971,7 @@ struct ndm_image_stream {
 	/* transfer stuff */
 	int			transfer_mode;
 	struct ndmchan		chan;
-	char			buf[NDM_N_IMAGE_STREAM_BUF];
+	char *			buf;
 };
 
 extern int		ndmis_initialize (struct ndm_session *sess);