X-Git-Url: https://git.saurik.com/apple/libc.git/blobdiff_plain/7b00c0c43f52e9d27168e67a26aac19065cdb40c..ad3c9f2af814c84582fdd1649e49ec4f68572c5a:/stdlib/system-fbsd.c diff --git a/stdlib/system-fbsd.c b/stdlib/system-fbsd.c deleted file mode 100644 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 -__FBSDID("$FreeBSD: src/lib/libc/stdlib/system.c,v 1.11 2007/01/09 00:28:10 imp Exp $"); - -#include "namespace.h" -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "un-namespace.h" -#include "libc_private.h" - -#include -#define environ (*_NSGetEnviron()) - -#if __DARWIN_UNIX03 -#include - -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);