Libc-825.24.tar.gz

[apple/libc.git] / stdlib / system-fbsd.c

diff --git a/stdlib/system-fbsd.c b/stdlib/system-fbsd.c
deleted file mode 100644 (file)
index c2a56c7..0000000
--- a/stdlib/system-fbsd.c
+++ /dev/null
@@ -1,148 +0,0 @@
-/*
- * Copyright (c) 1988, 1993
- *     The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)system.c   8.1 (Berkeley) 6/4/93";
-#endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD: src/lib/libc/stdlib/system.c,v 1.11 2007/01/09 00:28:10 imp Exp $");
-
-#include "namespace.h"
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <signal.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <spawn.h>
-#include <paths.h>
-#include <errno.h>
-#include "un-namespace.h"
-#include "libc_private.h"
-
-#include <crt_externs.h>
-#define environ (*_NSGetEnviron())
-
-#if __DARWIN_UNIX03
-#include <pthread.h>
-
-static pthread_mutex_t __systemfn_mutex = PTHREAD_MUTEX_INITIALIZER;
-extern int __unix_conforming;
-#ifdef VARIANT_CANCELABLE
-extern void _pthread_testcancel(pthread_t thread, int isconforming);
-#endif /* VARIANT_CANCELABLE */
-#endif /* __DARWIN_UNIX03 */
-
-int
-__system(command)
-       const char *command;
-{
-       pid_t pid, savedpid;
-       int pstat, err;
-       struct sigaction ign, intact, quitact;
-       sigset_t newsigblock, oldsigblock, defaultsig;
-       posix_spawnattr_t attr;
-       short flags = POSIX_SPAWN_SETSIGMASK;
-       const char *argv[] = {"sh", "-c", command, NULL};
-
-#if __DARWIN_UNIX03
-       if (__unix_conforming == 0)
-               __unix_conforming = 1;
-#ifdef VARIANT_CANCELABLE
-       _pthread_testcancel(pthread_self(), 1);
-#endif /* VARIANT_CANCELABLE */
-#endif /* __DARWIN_UNIX03 */
-
-       if (!command) {         /* just checking... */
-               if (access(_PATH_BSHELL, F_OK) == -1)   /* if no sh or no access */
-                       return(0);
-               else
-                       return(1);
-       }
-
-       if ((err = posix_spawnattr_init(&attr)) != 0) {
-               errno = err;
-               return -1;
-       }
-       (void)sigemptyset(&defaultsig);
-
-#if __DARWIN_UNIX03
-       pthread_mutex_lock(&__systemfn_mutex);
-#endif /* __DARWIN_UNIX03 */
-       /*
-        * Ignore SIGINT and SIGQUIT, block SIGCHLD. Remember to save
-        * existing signal dispositions.
-        */
-       ign.sa_handler = SIG_IGN;
-       (void)sigemptyset(&ign.sa_mask);
-       ign.sa_flags = 0;
-       (void)_sigaction(SIGINT, &ign, &intact);
-       if (intact.sa_handler != SIG_IGN) {
-               sigaddset(&defaultsig, SIGINT);
-               flags |= POSIX_SPAWN_SETSIGDEF;
-       }
-       (void)_sigaction(SIGQUIT, &ign, &quitact);
-       if (quitact.sa_handler != SIG_IGN) {
-               sigaddset(&defaultsig, SIGQUIT);
-               flags |= POSIX_SPAWN_SETSIGDEF;
-       }
-       (void)sigemptyset(&newsigblock);
-       (void)sigaddset(&newsigblock, SIGCHLD);
-       (void)_sigprocmask(SIG_BLOCK, &newsigblock, &oldsigblock);
-       (void)posix_spawnattr_setsigmask(&attr, &oldsigblock);
-       if (flags & POSIX_SPAWN_SETSIGDEF) {
-               (void)posix_spawnattr_setsigdefault(&attr, &defaultsig);
-       }
-       (void)posix_spawnattr_setflags(&attr, flags);
-
-       err = posix_spawn(&pid, _PATH_BSHELL, NULL, &attr, (char *const *)argv, environ);
-       (void)posix_spawnattr_destroy(&attr);
-       if (err == 0) {
-               savedpid = pid;
-               do {
-                       pid = _wait4(savedpid, &pstat, 0, (struct rusage *)0);
-               } while (pid == -1 && errno == EINTR);
-               if (pid == -1) pstat = -1;
-       } else if (err == ENOMEM || err == EAGAIN) { /* as if fork failed */
-               pstat = -1;
-       } else {
-               pstat = W_EXITCODE(127, 0); /* couldn't exec shell */
-       }
-
-       (void)_sigaction(SIGINT, &intact, NULL);
-       (void)_sigaction(SIGQUIT,  &quitact, NULL);
-       (void)_sigprocmask(SIG_SETMASK, &oldsigblock, NULL);
-#if __DARWIN_UNIX03
-       pthread_mutex_unlock(&__systemfn_mutex);
-#endif /* __DARWIN_UNIX03 */
-       return(pstat);
-}
-
-__weak_reference(__system, system);
-__weak_reference(__system, _system);