From f526a68ca0a0fffc4bfee5555fb1a3190bf3cb7d Mon Sep 17 00:00:00 2001
From: espie <espie@openbsd.org>
Date: Sun, 8 May 2022 13:31:40 +0000
Subject: [PATCH] get rid of horribly complex optimization that's no longer
 relevant.

For update-info, we used to try to stop reading the CONTENTS file from
the stream as soon as we had enough, but
- most update-info will be cached
- the ones that won't are @option always-update, so they need the full
plist anyway
- most packages are signed, so we need a full 64KB of data to check the hash.
---
 usr.sbin/pkg_add/OpenBSD/PackageLocation.pm | 26 ++++++---------------
 usr.sbin/pkg_add/OpenBSD/Ustar.pm           |  8 ++-----
 2 files changed, 9 insertions(+), 25 deletions(-)

diff --git a/usr.sbin/pkg_add/OpenBSD/PackageLocation.pm b/usr.sbin/pkg_add/OpenBSD/PackageLocation.pm
index cb795f9649a..63a6cd11baa 100644
--- a/usr.sbin/pkg_add/OpenBSD/PackageLocation.pm
+++ b/usr.sbin/pkg_add/OpenBSD/PackageLocation.pm
@@ -1,5 +1,5 @@
 # ex:ts=8 sw=4:
-# $OpenBSD: PackageLocation.pm,v 1.59 2022/05/08 13:21:04 espie Exp $
+# $OpenBSD: PackageLocation.pm,v 1.60 2022/05/08 13:31:40 espie Exp $
 #
 # Copyright (c) 2003-2007 Marc Espie <espie@openbsd.org>
 #
@@ -73,12 +73,7 @@ OpenBSD::Auto::cache(update_info,
 	    !defined $state->defines("CACHING_RECHECK")) {
 		return $info;
 	}
-	my $result = $self->plist(\&OpenBSD::PackingList::UpdateInfoOnly,
-	    sub {
-		return 0 if $_[0] =~ m/^\@option\s+always-update\b/m;
-		return 1 if $_[0] =~ m/^\@(?:newgroup|newuser|cwd)\b/m;
-		return 0;
-	    });
+	my $result = $self->plist(\&OpenBSD::PackingList::UpdateInfoOnly);
 	if (defined $info) {
 		my $s1 = OpenBSD::Signature->from_plist($info);
 		my $s2 = OpenBSD::Signature->from_plist($result);
@@ -137,12 +132,12 @@ sub _set_callback
 
 sub find_contents
 {
-	my ($self, $extra) = @_;
+	my $self = shift;
 
 	while (my $e = $self->next) {
 		if ($e->isFile && is_info_name($e->{name})) {
 			if ($e->{name} eq CONTENTS ) {
-				my $v = $e->contents($extra);
+				my $v = $e->contents;
 				return $v;
 			}
 		} else {
@@ -154,18 +149,11 @@ sub find_contents
 
 sub contents
 {
-	my ($self, $extra) = @_;
+	my $self = shift;
 	if (!defined $self->{contents}) {
 		if (!$self->_opened) {
 			return;
 		}
-		if (defined $extra) {
-			my $contents = $self->find_contents($extra);
-			if ($contents) {
-				$self->unput;
-			}
-			return $contents;
-		}
 		$self->{contents} = $self->find_contents;
 	}
 
@@ -257,7 +245,7 @@ sub info
 
 sub plist
 {
-	my ($self, $code, $extra) = @_;
+	my ($self, $code) = @_;
 	require OpenBSD::PackingList;
 
 	if (defined $self->{dir} && -f $self->{dir}.CONTENTS) {
@@ -267,7 +255,7 @@ sub plist
 		$plist->set_infodir($self->{dir});
 		return $plist;
 	}
-	if (my $value = $self->contents($extra)) {
+	if (my $value = $self->contents) {
 		return OpenBSD::PackingList->fromfile(\$value, $code);
 	}
 	# hopeless
diff --git a/usr.sbin/pkg_add/OpenBSD/Ustar.pm b/usr.sbin/pkg_add/OpenBSD/Ustar.pm
index aef9740d87d..8fb2e3e3155 100644
--- a/usr.sbin/pkg_add/OpenBSD/Ustar.pm
+++ b/usr.sbin/pkg_add/OpenBSD/Ustar.pm
@@ -1,5 +1,5 @@
 # ex:ts=8 sw=4:
-# $OpenBSD: Ustar.pm,v 1.89 2021/08/09 16:40:20 espie Exp $
+# $OpenBSD: Ustar.pm,v 1.90 2022/05/08 13:31:41 espie Exp $
 #
 # Copyright (c) 2002-2014 Marc Espie <espie@openbsd.org>
 #
@@ -862,7 +862,7 @@ sub extract_to_fh
 
 sub contents
 {
-	my ($self, $lookfor) = @_;
+	my $self = shift;
 	my $toread = $self->{size};
 	my $buffer;
 	my $offset = 0;
@@ -874,10 +874,6 @@ sub contents
 
 	while ($toread != 0) {
 		my $sz = $toread;
-		if (defined $lookfor) {
-			last if (defined $buffer) and &$lookfor($buffer);
-			$sz = 1024 if $sz > 1024;
-		}
 		my $actual = read($self->{archive}{fh}, $buffer, $sz, $offset);
 		if (!defined $actual) {
 			$self->fatal("Error reading from archive: #1", $!);
-- 
2.20.1