$NetBSD: patch-af,v 1.3 1999/09/04 01:19:50 bad Exp $

--- changer-src/chg-scsi.c.orig	Sat Sep 19 03:55:13 1998
+++ changer-src/chg-scsi.c	Mon Feb 22 20:00:39 1999
@@ -527,6 +527,15 @@
 {
   FILE *out=NULL;
   int cnt=0;
+
+  /* if we have a long timeout, sleep a long time before access.
+   * This is avoid lots of error messages for drives which need a lot of time
+   */
+  if ((timeout /2) > 1) {
+	timeout = timeout / 2;
+	sleep(timeout);
+  }
+	
   while ((cnt<timeout) && (NULL==(out=fopen(tapedev,"w+")))){
     cnt++;
     sleep(1);
@@ -634,7 +643,10 @@
 
     /* Get the configuration parameters */
     if (tape_device[0] >= '0' && tape_device[0] <= '9' && tape_device[1] == 0){
-      read_config(changer_file,&chg);
+      if (read_config(changer_file,&chg) == -1) {
+	perror(changer_file);
+	exit(1);
+      }
       confnum=atoi(tape_device);
       use_slots    = chg.conf[confnum].end-chg.conf[confnum].start+1;
       slot_offset  = chg.conf[confnum].start;
@@ -717,7 +729,7 @@
 		    if (need_eject)
 		      eject_tape(tape_device);
 		    (void)unload(fd, drive_num, oldtarget);
-		    if (ask_clean(tape_device,need_sleep))
+		    if (clean_slot != -1 && ask_clean(tape_device,need_sleep))
 			clean_tape(fd,tape_device,clean_file,drive_num,
                                    clean_slot,maxclean,time_file);
 		    loaded=0;
@@ -751,7 +763,7 @@
 		if (need_eject)
 		    eject_tape(tape_device);
 		(void)unload(fd, drive_num, target);
-		if (ask_clean(tape_device,need_sleep))
+		if (clean_slot != -1 && ask_clean(tape_device,need_sleep))
 		    clean_tape(fd,tape_device,clean_file,drive_num,clean_slot,
                                maxclean,time_file);
 	    }
@@ -776,7 +788,7 @@
 		if (need_eject)
 		  eject_tape(tape_device);
 		(void)unload(fd, drive_num, target);
-		if (ask_clean(tape_device,need_sleep))
+		if (clean_slot != -1 && ask_clean(tape_device,need_sleep))
 		    clean_tape(fd,tape_device,clean_file,drive_num,clean_slot,
                                maxclean,time_file);
 		printf("%d %s\n", target, tape_device);