If we are using the chroot() option or the setuid options, we must create the pidfile before doing the chroot OR the setreuid. It's actually best for start-stop-daemon if we create the pidfile from the master side of the fork() before it exits, since most of the startup checks happen after the chroot() unfortunetly. Signed-off-by: Robin H. Johnson <robbat2@gentoo.org> diff -Nuar fprobe-1.1.orig/src/fprobe.c fprobe-1.1/src/fprobe.c --- fprobe-1.1.orig/src/fprobe.c 2005-01-30 08:43:35.000000000 +0000 +++ fprobe-1.1/src/fprobe.c 2008-03-16 20:51:24.000000000 +0000 @@ -1379,7 +1379,8 @@ my_log_open(ident, verbosity, log_dest); if (!(log_dest & 2)) { - switch (fork()) { + pid_t childpid = fork(); + switch (childpid) { case -1: fprintf(stderr, "fork(): %s", strerror(errno)); exit(1); @@ -1392,6 +1393,12 @@ break; default: + if (!(pidfile = fopen(pidfilepath, "w"))) + my_log(LOG_ERR, "Can't create pid file. fopen(): %s", strerror(errno)); + else { + fprintf(pidfile, "%ld\n", (long) childpid); + fclose(pidfile); + } exit(0); } } else { @@ -1548,13 +1555,6 @@ } } - if (!(pidfile = fopen(pidfilepath, "w"))) - my_log(LOG_ERR, "Can't create pid file. fopen(): %s", strerror(errno)); - else { - fprintf(pidfile, "%ld\n", (long) pid); - fclose(pidfile); - } - my_log(LOG_INFO, "pid: %d", pid); my_log(LOG_INFO, "interface: %s, datalink: %s (%d)", dev, dlt[link_type_idx].descr, link_type);