[PATCH 2/1] http: fix clobbering of $null_io

[Eric Wong <e@80x24.org>]

Oops, this would be disatrous if we started handling
bigger request bodies or slow clients.

Fixes: c008654229a9 ("avoid IO::File for anonymous temporary files")
---
 lib/PublicInbox/HTTP.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/PublicInbox/HTTP.pm b/lib/PublicInbox/HTTP.pm
index cac14be..c4b74b4 100644
--- a/lib/PublicInbox/HTTP.pm
+++ b/lib/PublicInbox/HTTP.pm
@@ -328,7 +328,7 @@ sub more ($$) {
 
 sub input_prepare {
 	my ($self, $env) = @_;
-	my $input = $null_io;
+	my $input;
 	my $len = $env->{CONTENT_LENGTH};
 	if ($len) {
 		if ($len > $MAX_REQUEST_BUFFER) {
@@ -339,6 +339,8 @@ sub input_prepare {
 	} elsif (env_chunked($env)) {
 		$len = CHUNK_START;
 		open($input, '+>', undef);
+	} else {
+		$input = $null_io;
 	}
 
 	# TODO: expire idle clients on ENFILE / EMFILE
-- 
EW