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-rw-r--r--plugins/mod_posix.lua4
1 files changed, 3 insertions, 1 deletions
diff --git a/plugins/mod_posix.lua b/plugins/mod_posix.lua
index ab3a8a26..55d52ccd 100644
--- a/plugins/mod_posix.lua
+++ b/plugins/mod_posix.lua
@@ -20,6 +20,7 @@ end
local logger_set = require "util.logger".setwriter;
local lfs = require "lfs";
+local stat = lfs.attributes;
local prosody = _G.prosody;
@@ -81,7 +82,8 @@ local function write_pidfile()
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");