# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1263341002 0
# Node ID 260601859c9fdbde9f51d900049e15a3964c71a0
# Parent  0b3184f3c9e42c8dd017c3c5ae647cbbd037634f
mod_posix: Adjust file open mode depending on whether file exists (take that fopen designers!!!)

diff -r 0b3184f3c9e4 -r 260601859c9f plugins/mod_posix.lua
--- a/plugins/mod_posix.lua	Tue Jan 12 15:35:36 2010 +0000
+++ b/plugins/mod_posix.lua	Wed Jan 13 00:03:22 2010 +0000
@@ -20,6 +20,7 @@
 local logger_set = require "util.logger".setwriter;
 
 local lfs = require "lfs";
+local stat = lfs.attributes;
 
 local prosody = _G.prosody;
 
@@ -81,7 +82,8 @@
 	end
 	pidfile = module:get_option("pidfile");
 	if pidfile then
-		pidfile_handle, err = io.open(pidfile, "a+");
+		local mode = stat(pidfile) and "r+" or "w+";
+		pidfile_handle, err = io.open(pidfile, mode);
 		if not pidfile_handle then
 			module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err);
 			prosody.shutdown("Couldn't write pidfile");