fixed up the demos for cleaner operation

diff --git a/bin/chat2_demo b/bin/chat2_demo
index a2006a9..9a4ec6f 100755 (executable)
--- a/bin/chat2_demo
+++ b/bin/chat2_demo
@@ -5,6 +5,13 @@ $offset = 175 ;
 $base_off = 0 ;
 $xskip = ( $^O eq 'solaris' ) ? 600 : 500 ;
 
+use File::Basename qw( basename );
+$ENV{PATH} .= ':' . basename( $0 ) . ':.';
+for my $prog qw( run_stem xterm telnet ) {
+    die "Can't find $prog in PATH\n" if
+        system( "which $prog >/dev/null 2>&1" ) != 0;
+}
+
 my @children ;
 
 $SIG{ 'INT' } = \&cleanup ;
@@ -41,12 +48,11 @@ print "$cmd\n" ;
        sleep 2 unless $cmd =~ /localhost/ ;
 }
 
-while( <STDIN> ) {
+1 while wait() != -1;
+
+exit;
 
-       next unless /^q/i ;
 
-       cleanup() ;
-}
 
 sub cleanup {
 

diff --git a/bin/chat_demo b/bin/chat_demo
index 8437913..435af50 100755 (executable)
--- a/bin/chat_demo
+++ b/bin/chat_demo
@@ -7,6 +7,13 @@ $xskip = ( $^O eq 'solaris' ) ? 600 : 500 ;
 
 print "CHAT DEMO\n" ;
 
+use File::Basename qw( basename );
+$ENV{PATH} .= ':' . basename( $0 ) . ':.';
+for my $prog qw( run_stem xterm telnet ) {
+    die "Can't find $prog in PATH\n" if
+        system( "which $prog >/dev/null 2>&1" ) != 0;
+}
+
 my @children ;
 
 $SIG{ 'INT' } = \&cleanup ;
@@ -42,13 +49,11 @@ print "$cmd\n" ;
        sleep 4 unless $cmd =~ /localhost/ ;
 }
 
+1 while wait() != -1;
 
-while( <STDIN> ) {
+exit;
 
-       next unless /^q/i ;
 
-       cleanup() ;
-}
 
 sub cleanup {
 

diff --git a/bin/hello_demo b/bin/hello_demo
index 5b525c1..313c5c1 100644 (file)
--- a/bin/hello_demo
+++ b/bin/hello_demo
@@ -4,13 +4,15 @@ use strict ;
 use warnings ;
 our $s ;
 
-if ( -d 'conf' && -e 'bin/run_stem' ) {
+print "HELLO DEMO\n" ;
 
-       $ENV{PERL5LIB} = 'lib' ;
-       $ENV{PATH} =  "bin:$ENV{PATH}" ;
+use File::Basename qw( basename );
+$ENV{PATH} .= ':' . basename( $0 ) . ':.';
+for my $prog qw( run_stem xterm ) {
+    die "Can't find $prog in PATH\n" if
+        system( "which $prog >/dev/null 2>&1" ) != 0;
 }
 
-print "HELLO DEMO\n" ;
 
 $SIG{ 'INT' } = \&cleanup ;
 
@@ -30,12 +32,11 @@ s/:/: / for @cmd ;
 
 fork_exec( @cmd ) ;
 
-while( <STDIN> ) {
+1 while wait() != -1;
+
+exit;
 
-       next unless /^q/i ;
 
-       cleanup() ;
-}
 
 sub cleanup {
 

diff --git a/bin/inetd_demo b/bin/inetd_demo
index 9116feb..9556f69 100755 (executable)
--- a/bin/inetd_demo
+++ b/bin/inetd_demo
@@ -9,6 +9,13 @@ my @children ;
 
 print "INETD: $ENV{PATH}\n" ;
 
+use File::Basename qw( basename );
+$ENV{PATH} .= ':' . basename( $0 ) . ':.';
+for my $prog qw( run_stem xterm telnet ) {
+    die "Can't find $prog in PATH\n" if
+        system( "which $prog >/dev/null 2>&1" ) != 0;
+}
+
 $SIG{ 'INT' } = \&cleanup ;
 
 if ( $s ) {
@@ -42,13 +49,11 @@ print "CMD $cmd\n" ;
        sleep 4 unless $cmd =~ /localhost/ ;
 }
 
+1 while wait() != -1;
 
-while( <STDIN> ) {
+exit;
 
-       next unless /^q/i ;
 
-       cleanup() ;
-}
 
 sub cleanup {
 

diff --git a/bin/tail_demo b/bin/tail_demo
index ce04d7e..6011199 100755 (executable)
--- a/bin/tail_demo
+++ b/bin/tail_demo
@@ -5,6 +5,13 @@ $offset = 175 ;
 $base_off = 0 ;
 $xskip = ( $^O eq 'solaris' ) ? 600 : 500 ;
 
+use File::Basename qw( basename );
+$ENV{PATH} .= ':' . basename( $0 ) . ':.';
+for my $prog qw( run_stem xterm telnet ) {
+    die "Can't find $prog in PATH\n" if
+        system( "which $prog >/dev/null 2>&1" ) != 0;
+}
+
 my @children ;
 
 my $tail_dir = 'tail' ;
@@ -45,12 +52,11 @@ EOT
        sleep 2 ;
 }
 
-while( <STDIN> ) {
+1 while wait() != -1;
+
+exit;
 
-       next unless /^q/i ;
 
-       cleanup() ;
-}
 
 sub cleanup {