/* * Copyright (c) 2010 Todd C. Miller <Todd.Miller@courtesan.com> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <config.h> #include <sys/types.h> #include <sys/param.h> #include <sys/ioctl.h> #include <fcntl.h> #ifdef HAVE_UNISTD_H # include <unistd.h> #endif /* HAVE_UNISTD_H */ #include <pathnames.h> #include "missing.h" pid_t setsid() { int fd; #ifdef SETPGRP_VOID if (setpgrp() == -1) #else if (setpgrp(0, 0) == -1) #endif return -1; # ifdef TIOCNOTTY if ((fd = open(_PATH_TTY, O_RDWR, 0644)) != -1) { (void) ioctl(fd, TIOCNOTTY, NULL); close(fd); } # endif return getpid(); }