File vcron-2.3-tempfiles.patch of Package vcron

--- usr/local/bin/vcron	2004-03-23 11:27:50.000000000 +0100
+++ usr/local/bin/vcron	2004-03-23 13:02:23.000000000 +0100
@@ -440,7 +440,10 @@
 
 #       if no crontab file , create an empty one 
 #       to avoid the close to produce an error
-	exec sh << "crontab -l > /dev/null 2>&1 ; if \[ \$? -ne 0 \]; then > /tmp/croninit; crontab /tmp/croninit; rm /tmp/croninit; fi"
+	set result [catch {exec crontab -l >& /dev/null}]
+	if {$result != 0} {
+	    exec crontab - << ""
+	}
 
 	.fram1.frm10.lst1 delete 0 end
 
@@ -1077,12 +1080,7 @@
 	return "bad"
     }
 
-    set fid [open "/tmp/atfile" w]
-    puts $fid $spgm
-    close $fid
-
-    exec at -f /tmp/atfile $hour $day >& /dev/null
-    file delete "/tmp/atfile"
+    exec at $hour $day << "$fid $spgm\n" >& /dev/null
 
     GetCurrentState 0 1
 
@@ -1104,26 +1102,19 @@
 
 proc RePostCronTab {} {
     global cronenv
-
-    set fid [open "/tmp/croninit" w]
+    set crontab ""
 
     # first set the environment
     if { [string length $cronenv] } {
-	puts $fid $cronenv
+	append crontab $cronenv "\n"
     }
 
     # set each cron line
-    set ind 0
     set max [.fram1.frm10.lst1 size]
-    while { $ind < $max } {
-	set line [.fram1.frm10.lst1 get $ind]
-	puts $fid $line
-	incr ind
+    for {set ind 0} {$ind < $max} {incr ind} {
+	append crontab [.fram1.frm10.lst1 get $ind] "\n"
     }
-    close $fid
-
-    exec crontab /tmp/croninit
-    file delete /tmp/croninit
+    exec crontab - << $crontab
 }
 
 proc RazTabVar {} {