[PATCH 2/3] githttpbackend: avoid infinite loop on generic PSGI servers

["Eric Wong (Contractor, The Linux Foundation)" <e@80x24.org>]

We must detect EOF when reading a POST body with standard PSGI servers.
This does not affect deployments using the standard public-inbox-httpd;
but most smaller inboxes should be able to get away using a generic
PSGI server.
---
 lib/PublicInbox/GitHTTPBackend.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/PublicInbox/GitHTTPBackend.pm b/lib/PublicInbox/GitHTTPBackend.pm
index 4d2816a..6efe5b3 100644
--- a/lib/PublicInbox/GitHTTPBackend.pm
+++ b/lib/PublicInbox/GitHTTPBackend.pm
@@ -280,6 +280,7 @@ sub input_to_file {
 			err($env, "error reading input: $!");
 			return;
 		}
+		last if $r == 0;
 		my $off = 0;
 		while ($r > 0) {
 			my $w = syswrite($in, $buf, $r, $off);
-- 
EW