From: Owen W. Taylor <otaylor@fishsoup.net>
Date: Mon, 5 May 2014 22:58:01 +0000 (-0400)
Subject: trivial-httpd: flush after writing the port to stdout
X-Git-Tag: archive/raspbian/2022.1-3+rpi1~1^2~1202
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=466671407de87cc366b4cb5c590d108a5516e30d;p=ostree.git

trivial-httpd: flush after writing the port to stdout

The option --port-file=- is most useful when the stdout of the daemon
is programatically redirected and not going to a terminal. The
flush-after-a-line behavior of stdout is specific to terminals, so
we need an explicit flush.

https://bugzilla.gnome.org/show_bug.cgi?id=729609
---

diff --git a/src/ostree/ot-builtin-trivial-httpd.c b/src/ostree/ot-builtin-trivial-httpd.c
index 0689a3cb..4cfc4b47 100644
--- a/src/ostree/ot-builtin-trivial-httpd.c
+++ b/src/ostree/ot-builtin-trivial-httpd.c
@@ -353,7 +353,10 @@ ostree_builtin_trivial_httpd (int argc, char **argv, OstreeRepo *repo, GCancella
     {
       gs_free char *portstr = g_strdup_printf ("%u\n", soup_server_get_port (server));
       if (g_strcmp0 ("-", opt_port_file) == 0)
-        fputs (portstr, stdout); // not g_print - this must go to stdout, not a handler
+        {
+          fputs (portstr, stdout); // not g_print - this must go to stdout, not a handler
+          fflush (stdout);
+        }
       else if (!g_file_set_contents (opt_port_file, portstr, strlen (portstr), error))
         goto out;
     }