pimd does not work in background under FreeBSD

[skif-kiev]

FreeBSD 9.2-RELEASE amd64
pimd 2.2.0-alpha1

Being started without --debug and --foreground options pimd cant determine bootstrap router so doesn't send RP advertises. The reason is that we call pid=getpid() in routesock.c and use that value later to determine the valid message from routing socket.
But between those operations we do fork() in main.c to daemonize pimd, so it gets new process ID that is different from pid. After that rtm.rtm_pid != pid becomes always true and k_req_incoming() always returns FALSE.

The patch, probably not optimal, follows.
It moves pid determinition from init_routesock() to k_req_incoming().

--- routesock.c 2014-04-13 12:56:38.000000000 +0300
+++ routesock.c 2014-04-14 23:19:34.000000000 +0300
@@ -97,8 +97,6 @@
     int on = 0;
 #endif

-    pid = getpid();
-
     routing_socket = socket(PF_ROUTE, SOCK_RAW, 0);
     if (routing_socket < 0) {
        logit(LOG_ERR, errno, "Failed creating routing socket");
@@ -213,6 +211,8 @@
        return FALSE;
     }

+    pid = getpid();
+
     while (1) {
        rlen = read(routing_socket, &m_rtmsg, sizeof(m_rtmsg));
        if (rlen < 0) {

[troglobit]

Hi, sorry for the late reply!

This looks great. Post a git pull request and I'll merge it immediately, or you can wait for my next round of manual merges.