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daemon() has to be called prior to file descriptor setups

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(otherwise file descriptors could be closed mistakenly)

Obtained from:	KAME
MFC after:	1 week
This commit is contained in:
Hajimu UMEMOTO 2003-08-14 18:13:34 +00:00
parent 4eb4a0e6ec
commit 92bdf888a6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=118914
1 changed files with 16 additions and 8 deletions
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24
usr.sbin/rtsold/rtsold.c
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@ -229,18 +229,23 @@ main(argc, argv)
/* initialization to dump internal status to a file */
signal(SIGUSR1, rtsold_set_dump_file);
if (!fflag)
daemon(0, 0); /* act as a daemon */
/*
* Open a socket for sending RS and receiving RA.
* This should be done before calling ifinit(), since the function
* uses the socket.
*/
if ((s = sockopen()) < 0) {
errx(1, "failed to open a socket");
warnmsg(LOG_ERR, __func__, "failed to open a socket");
exit(1);
/*NOTREACHED*/
}
maxfd = s;
if ((rtsock = rtsock_open()) < 0) {
errx(1, "failed to open a socket");
warnmsg(LOG_ERR, __func__, "failed to open a socket");
exit(1);
/*NOTREACHED*/
}
if (rtsock > maxfd)
@ -258,12 +263,16 @@ main(argc, argv)
/* configuration per interface */
if (ifinit()) {
errx(1, "failed to initilizatoin interfaces");
warnmsg(LOG_ERR, __func__,
"failed to initilizatoin interfaces");
exit(1);
/*NOTREACHED*/
}
while (argc--) {
if (ifconfig(*argv)) {
errx(1, "failed to initialize %s", *argv);
warnmsg(LOG_ERR, __func__,
"failed to initialize %s", *argv);
exit(1);
/*NOTREACHED*/
}
argv++;
@ -271,13 +280,12 @@ main(argc, argv)
/* setup for probing default routers */
if (probe_init()) {
errx(1, "failed to setup for probing routers");
warnmsg(LOG_ERR, __func__,
"failed to setup for probing routers");
exit(1);
/*NOTREACHED*/
}
if (!fflag)
daemon(0, 0); /* act as a daemon */
/* dump the current pid */
if (!once) {
pid_t pid = getpid();