From: Michael Tokarev <mjt@corpit.ru>
Date: Mon, 18 May 2009 12:28:55 +0000 (+0400)
Subject: bugfix: initialize pid (as read from pidfile) to zero
X-Git-Tag: release-1.0.10~76
X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=commitdiff_plain;h=cdf7f13c31310da0c40819fd812e19519bf4318c;hp=ec316aa32e8567395a88c4583007f01ffae008ce

bugfix: initialize pid (as read from pidfile) to zero

If we didn't read any number from a pid file, we'll return
an unitialized variable to the caller, and it will treat
that garbage as a pid of a process (possible to kill).

Fix that.
---

diff --git a/lib/pidfile.c b/lib/pidfile.c
index 830d3f35..426cbf39 100644
--- a/lib/pidfile.c
+++ b/lib/pidfile.c
@@ -37,7 +37,7 @@
 pid_t read_pid (char *pidfile)
 {
   FILE *f;
-  long pid;
+  long pid = 0;
 
   if (!(f=fopen(pidfile,"r")))
     return 0;