From 544856338d731e08a8ae00e694aa8cc2a45d141d Mon Sep 17 00:00:00 2001
From: Peter Palfrader <peter@palfrader.org>
Date: Sat, 24 Apr 2004 14:55:49 +0000
Subject: Switch to a common readwrite_gpg()

---
 Echolot/Conf.pm         |  8 +-------
 Echolot/Pinger/CPunk.pm | 15 ++------------
 Echolot/Stats.pm        | 15 ++------------
 Echolot/Tools.pm        | 52 ++++++++++++++++++++++++++++++++++++++++++-------
 4 files changed, 50 insertions(+), 40 deletions(-)

(limited to 'Echolot')

diff --git a/Echolot/Conf.pm b/Echolot/Conf.pm
index 19ea43f..abe69c8 100644
--- a/Echolot/Conf.pm
+++ b/Echolot/Conf.pm
@@ -365,13 +365,7 @@ sub parse_cpunk_key($$$) {
 			commands     => [qw{--with-colons}],
 			command_args => [qw{--no-options --no-secmem-warning --no-default-keyring --fast-list-mode}],
 			handles      => $handles );
-		print $stdin_fh $key;
-		close($stdin_fh);
-
-		my $stdout = join '', <$stdout_fh>; close($stdout_fh);
-		my $stderr = join '', <$stderr_fh>; close($stderr_fh);
-		my $status = join '', <$status_fh>; close($status_fh);
-
+		my ($stdout, $stderr, $status) = readwrite_gpg($key, $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
 		waitpid $pid, 0;
 
 		($stderr eq '') or 
diff --git a/Echolot/Pinger/CPunk.pm b/Echolot/Pinger/CPunk.pm
index 1aa8f07..09145d2 100644
--- a/Echolot/Pinger/CPunk.pm
+++ b/Echolot/Pinger/CPunk.pm
@@ -44,13 +44,7 @@ sub encrypt_to($$$$) {
 		commands     => [ '--import' ],
 		command_args => [qw{--no-options --no-secmem-warning --no-default-keyring --fast-list-mode --keyring}, $keyring, '--', '-' ],
 		handles      => $handles );
-	print $stdin_fh $keys->{$recipient}->{'key'};
-	close($stdin_fh);
-
-	my $stdout = join '', <$stdout_fh>; close($stdout_fh);
-	my $stderr = join '', <$stderr_fh>; close($stderr_fh);
-	my $status = join '', <$status_fh>; close($status_fh);
-
+	my ($stdout, $stderr, $status) = readwrite_gpg($keys->{$recipient}->{'key'}, $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
 	waitpid $pid, 0;
 
 	($stdout eq '') or
@@ -102,12 +96,7 @@ sub encrypt_to($$$$) {
 	$pid = $GnuPG->encrypt(
 		command_args => $command_args,
 		handles      => $handles );
-	close($stdin_fh);
-
-	$stdout = join '', <$stdout_fh>; close($stdout_fh);
-	$stderr = join '', <$stderr_fh>; close($stderr_fh);
-	$status = join '', <$status_fh>; close($status_fh);
-
+	my ($stdout, $stderr, $status) = readwrite_gpg('', $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
 	waitpid $pid, 0;
 
 	#($stderr eq '') or
diff --git a/Echolot/Stats.pm b/Echolot/Stats.pm
index 31eb2b6..0d97783 100644
--- a/Echolot/Stats.pm
+++ b/Echolot/Stats.pm
@@ -861,13 +861,7 @@ sub build_pgpring_type($$$$) {
 				commands     => [ '--import' ],
 				command_args => [qw{--no-options --no-secmem-warning --no-default-keyring --fast-list-mode --keyring}, $keyring, '--', '-' ],
 				handles      => $handles );
-			print $stdin_fh $key{'key'};
-			close($stdin_fh);
-
-			my $stdout = join '', <$stdout_fh>; close($stdout_fh);
-			my $stderr = join '', <$stderr_fh>; close($stderr_fh);
-			my $status = join '', <$status_fh>; close($status_fh);
-
+			my ($stdout, $stderr, $status) = readwrite_gpg($key{'key'}, $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
 			waitpid $pid, 0;
 
 			($stdout eq '') or
@@ -895,12 +889,7 @@ sub build_pgpring_export($$$$) {
 		commands     => [ '--export' ],
 		command_args => [qw{--no-options --no-secmem-warning --no-default-keyring --keyring}, $keyring, @$keyids ],
 		handles      => $handles );
-	close($stdin_fh);
-
-	my $stdout = join '', <$stdout_fh>; close($stdout_fh);
-	my $stderr = join '', <$stderr_fh>; close($stderr_fh);
-	my $status = join '', <$status_fh>; close($status_fh);
-
+	my ($stdout, $stderr, $status) = readwrite_gpg('', $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
 	waitpid $pid, 0;
 
 	open (F, ">$file") or
diff --git a/Echolot/Tools.pm b/Echolot/Tools.pm
index 9dea6a3..332f2e8 100644
--- a/Echolot/Tools.pm
+++ b/Echolot/Tools.pm
@@ -274,6 +274,50 @@ sub make_gpg_fds() {
 	return ($fds{'stdin'}, $fds{'stdout'}, $fds{'stderr'}, $fds{'status'}, $handles);
 };
 
+sub readwrite_gpg($$$$$) {
+	my ($in, $inputfd, $stdoutfd, $stderrfd, $statusfd) = @_;
+	local $INPUT_RECORD_SEPARATOR = undef;
+	my $s = IO::Select->new();
+
+	$stdoutfd->blocking(0);
+	$statusfd->blocking(0);
+	$stderrfd->blocking(0);
+	$s->add($stdoutfd);
+	$s->add($stderrfd);
+	$s->add($statusfd);
+
+	my ($stdout, $stderr, $status) = ("", "", "");
+
+	print $inputfd $in; close $inputfd;
+
+	my @ready;
+	while ($s->count() > 0) {
+		@ready = $s->can_read(42);
+		next unless (scalar(@ready)); # Wait some more.
+
+		for my $rfd (@ready) {
+			if ($rfd->eof) {
+				$s->remove($rfd);
+				close($rfd);
+				next;
+			}
+			if ($rfd == $stdoutfd) {
+				$stdout .= <$rfd>;
+				next;
+			}
+			if ($rfd == $statusfd) {
+				$status .= <$rfd>;
+				next;
+			}
+			if ($rfd == $stderrfd) {
+				$stderr .= <$rfd>;
+				next;
+			}
+		}
+	}
+	return ($stdout, $stderr, $status);
+}
+
 sub crypt_symmetrically($$) {
 	my ($msg, $direction) = @_;
 
@@ -294,13 +338,7 @@ sub crypt_symmetrically($$) {
 		$direction eq 'encrypt' ?
 			$GnuPG->encrypt_symmetrically( handles      => $handles ) :
 			$GnuPG->decrypt( handles      => $handles );
-	print $stdin_fh $msg;
-	close($stdin_fh);
-
-	my $stdout = join '', <$stdout_fh>; close($stdout_fh);
-	my $stderr = join '', <$stderr_fh>; close($stderr_fh);
-	my $status = join '', <$status_fh>; close($status_fh);
-
+	my ($stdout, $stderr, $status) = readwrite_gpg($msg, $stdin_fh, $stdout_fh, $stderr_fh, $status_fh);
 	waitpid $pid, 0;
 
 	if ($direction eq 'encrypt') {
-- 
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