1N/A/***********************************************************************
1N/A* *
1N/A* This software is part of the ast package *
1N/A* Copyright (c) 1985-2011 AT&T Intellectual Property *
1N/A* and is licensed under the *
1N/A* Common Public License, Version 1.0 *
1N/A* by AT&T Intellectual Property *
1N/A* *
1N/A* A copy of the License is available at *
1N/A* http://www.opensource.org/licenses/cpl1.0.txt *
1N/A* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
1N/A* *
1N/A* Information and Software Systems Research *
1N/A* AT&T Research *
1N/A* Florham Park NJ *
1N/A* *
1N/A* Glenn Fowler <gsf@research.att.com> *
1N/A* David Korn <dgk@research.att.com> *
1N/A* Phong Vo <kpv@research.att.com> *
1N/A* *
1N/A***********************************************************************/
1N/A#pragma prototyped
1N/A/*
1N/A * Glenn Fowler
1N/A * AT&T Research
1N/A *
1N/A * close a proc opened by procopen()
1N/A * otherwise exit() status of process is returned
1N/A */
1N/A
1N/A#include "proclib.h"
1N/A
1N/Aint
1N/Aprocclose(register Proc_t* p)
1N/A{
1N/A int pid;
1N/A int flags = 0;
1N/A int status = -1;
1N/A
1N/A if (p)
1N/A {
1N/A if (p->rfd >= 0)
1N/A close(p->rfd);
1N/A if (p->wfd >= 0 && p->wfd != p->rfd)
1N/A close(p->wfd);
1N/A if (p->flags & PROC_ORPHAN)
1N/A status = 0;
1N/A else
1N/A {
1N/A if (p->flags & PROC_ZOMBIE)
1N/A {
1N/A /*
1N/A * process may leave a zombie behind
1N/A * give it a chance to do that but
1N/A * don't hang waiting for it
1N/A */
1N/A
1N/A flags |= WNOHANG;
1N/A sleep(1);
1N/A }
1N/A if (!(p->flags & PROC_FOREGROUND))
1N/A sigcritical(SIG_REG_EXEC|SIG_REG_PROC);
1N/A while ((pid = waitpid(p->pid, &status, flags)) == -1 && errno == EINTR);
1N/A if (pid != p->pid && (flags & WNOHANG))
1N/A status = 0;
1N/A if (!(p->flags & PROC_FOREGROUND))
1N/A sigcritical(0);
1N/A else
1N/A {
1N/A if (p->sigint != SIG_IGN)
1N/A signal(SIGINT, p->sigint);
1N/A if (p->sigquit != SIG_IGN)
1N/A signal(SIGQUIT, p->sigquit);
1N/A#if defined(SIGCHLD)
1N/A#if _lib_sigprocmask
1N/A sigprocmask(SIG_SETMASK, &p->mask, NiL);
1N/A#else
1N/A#if _lib_sigsetmask
1N/A sigsetmask(p->mask);
1N/A#else
1N/A if (p->sigchld != SIG_DFL)
1N/A signal(SIGCHLD, p->sigchld);
1N/A#endif
1N/A#endif
1N/A#endif
1N/A }
1N/A status = status == -1 ?
1N/A EXIT_QUIT :
1N/A WIFSIGNALED(status) ?
1N/A EXIT_TERM(WTERMSIG(status)) :
1N/A EXIT_CODE(WEXITSTATUS(status));
1N/A }
1N/A procfree(p);
1N/A }
1N/A else
1N/A status = errno == ENOENT ? EXIT_NOTFOUND : EXIT_NOEXEC;
1N/A return status;
1N/A}