From ac82fcdd23907ac40b0024921cfcbd3072b25c6c Mon Sep 17 00:00:00 2001
From: John Fieber <jfieber@FreeBSD.org>
Date: Sun, 29 Sep 1996 19:42:51 +0000
Subject: [PATCH] Add a signal handler to clean up files if an INT, HUP, or
 QUIT is received.

---
 usr.bin/sgmlfmt/sgmlfmt.pl | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/usr.bin/sgmlfmt/sgmlfmt.pl b/usr.bin/sgmlfmt/sgmlfmt.pl
index 383bb85a7b38..e9ea98245ea0 100755
--- a/usr.bin/sgmlfmt/sgmlfmt.pl
+++ b/usr.bin/sgmlfmt/sgmlfmt.pl
@@ -1,6 +1,6 @@
 #!/usr/bin/perl
 
-# $Id: sgmlfmt.pl,v 1.13 1996/09/29 17:34:05 jfieber Exp $
+# $Id: sgmlfmt.pl,v 1.14 1996/09/29 18:27:12 jfieber Exp $
 
 #  Copyright (C) 1996
 #       John R. Fieber.  All rights reserved.
@@ -50,6 +50,30 @@ $dtdbase = "/usr/share/sgml/FreeBSD";
 $dtd = "$dtdbase/linuxdoc.dtd";
 $decl = "$dtdbase/linuxdoc.dcl";
 
+#
+# Things to clean up if we exit abnormally
+#
+
+@cleanfiles = ();
+
+#
+# Interrupt handler, remove scratch files.
+#
+
+sub sighandler {
+    local($sig) = @_;
+    unlink @cleanfiles;
+    exit(1);
+}
+
+$SIG{'HUP'} = 'sighandler';
+$SIG{'INT'} = 'sighandler';
+$SIG{'QUIT'} = 'sighandler';
+
+#
+# Display a usage message.
+#
+
 sub usage {
     print "Usage:\n";
     print "sgmlfmt -f <format> [-i <namea> ...] [-links] [-ssi] file\n";
@@ -105,6 +129,7 @@ sub sgmlparse {
 #
 
 sub gen_roff {
+    @cleanfiles = (@cleanfiles, "${fileroot}.roff");
     open (outfile, ">$fileroot.roff");
     &sgmlparse(infile, "roff");
     while (<infile>) {
@@ -120,6 +145,8 @@ sub gen_roff {
 
 sub do_groff {
     local($driver, $postproc) = @_;
+    @cleanfiles = (@cleanfiles, "${fileroot}.trf", "${fileroot}.tmp", 
+    	"${fileroot}.qrf", "${fileroot}.${driver}");
     open (outfile, ">$fileroot.trf");
     &sgmlparse(infile, "roff");
     while (<infile>) {
@@ -144,6 +171,7 @@ sub do_groff {
 #
 
 sub gen_latex {
+    @cleanfiles = (@cleanfiles, "${fileroot}.latex");
     open(outfile, ">$fileroot.latex");
     &sgmlparse(infile, "latex");
     while (<infile>) {
@@ -205,6 +233,8 @@ sub gen_html {
     local($i, $sl);
     $tmpfile = "/tmp/sgmlf.$$";
 
+    @cleanfiles = (@cleanfiles, "$tmpfile", "${fileroot}.html", 
+    	"${fileroot}_toc.html", "${fileroot}.ln");
     open(bar, ">$tmpfile");
 #    print STDERR "(Pass 1...";
     &sgmlparse(foo, "html");
@@ -237,6 +267,7 @@ sub gen_html {
 	    if ($sl <= $maxlevel) {
 		$filecount++;
 		$st_ol[$sc] = $sl;
+    	    	@cleanfiles = (@cleanfiles, "${fileroot}${filecount}.html");
 	    }
 	    else {
 		$st_ol[$sc] = $maxlevel;