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| author | Brian Cully <bjc@junctionnetworks.com> | 2010-07-09 01:16:09 +0100 |
|---|---|---|
| committer | Brian Cully <bjc@junctionnetworks.com> | 2010-07-09 01:16:09 +0100 |
| commit | d77e181372113179273c8c03cec766ac1cf3a768 (patch) | |
| tree | 6403b6a8eab53ab0806b0baeb9d819c0598c5198 /plugins | |
| parent | ed0cef77181841ce3063dccbb79f13ee85a14cae (diff) | |
| download | prosody-d77e181372113179273c8c03cec766ac1cf3a768.tar.gz prosody-d77e181372113179273c8c03cec766ac1cf3a768.zip | |
mod_posix: Truncate the pidfile before writing to ensure that we never overwrite with a PID shorter than the previous, and end with an invalid PID in the file.
Diffstat (limited to 'plugins')
| -rw-r--r-- | plugins/mod_posix.lua | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/plugins/mod_posix.lua b/plugins/mod_posix.lua index 52b1e0e6..11e3c418 100644 --- a/plugins/mod_posix.lua +++ b/plugins/mod_posix.lua @@ -95,6 +95,11 @@ local function write_pidfile() pidfile_handle = nil; prosody.shutdown("Prosody already running"); else + pidfile_handle, err = io.open(pidfile, "w+"); + if not pidfile_handle then + module:log("error", "Couldn't write pidfile at %s; %s", pidfile, err); + prosody.shutdown("Couldn't write pidfile"); + end pidfile_handle:write(tostring(pposix.getpid())); pidfile_handle:flush(); end |