http|nntp: avoid recursion inside ->write

[public-inbox.git] / lib / PublicInbox / GitHTTPBackend.pm

diff --git a/lib/PublicInbox/GitHTTPBackend.pm b/lib/PublicInbox/GitHTTPBackend.pm
index a2a81f8ea66a2dbe3ed81f885a5fda945e71bb38..303d5073850960943685719e6d49e297744979cb 100644 (file)
--- a/lib/PublicInbox/GitHTTPBackend.pm
+++ b/lib/PublicInbox/GitHTTPBackend.pm
@@ -231,18 +231,16 @@ sub input_prepare {
                        return;
                }
                last if $r == 0;
-               my $off = 0;
-               while ($r > 0) {
-                       my $w = syswrite($in, $buf, $r, $off);
-                       if (defined $w) {
-                               $r -= $w;
-                               $off += $w;
-                       } else {
-                               err($env, "error writing temporary file: $!");
-                               return;
-                       }
+               unless (print $in $buf) {
+                       err($env, "error writing temporary file: $!");
+                       return;
                }
        }
+       # ensure it's visible to git-http-backend(1):
+       unless ($in->flush) {
+               err($env, "error writing temporary file: $!");
+               return;
+       }
        unless (defined(sysseek($in, 0, SEEK_SET))) {
                err($env, "error seeking temporary file: $!");
                return;