From 3fc228fb4c1a39aceaee3d7013365042a6077bd0 Mon Sep 17 00:00:00 2001 From: cvs2svn Date: Fri, 26 Mar 1999 18:24:03 +0000 Subject: This commit was manufactured by cvs2git to create branch 'OPENBSD_2_5'. --- src/lib/libc/stdlib/system.c | 80 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 src/lib/libc/stdlib/system.c (limited to 'src/lib/libc/stdlib/system.c') diff --git a/src/lib/libc/stdlib/system.c b/src/lib/libc/stdlib/system.c new file mode 100644 index 0000000000..3e1b047393 --- /dev/null +++ b/src/lib/libc/stdlib/system.c @@ -0,0 +1,80 @@ +/* + * Copyright (c) 1988 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 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 *rcsid = "$OpenBSD: system.c,v 1.3 1996/09/15 09:31:52 tholo Exp $"; +#endif /* LIBC_SCCS and not lint */ + +#include +#include +#include +#include +#include +#include + +extern char **environ; + +int +system(command) + const char *command; +{ + pid_t pid; + sig_t intsave, quitsave; + int omask; + int pstat; + char *argp[] = {"sh", "-c", NULL, NULL}; + + if (!command) /* just checking... */ + return(1); + + argp[2] = (char *)command; + + omask = sigblock(sigmask(SIGCHLD)); + switch(pid = vfork()) { + case -1: /* error */ + (void)sigsetmask(omask); + return(-1); + case 0: /* child */ + (void)sigsetmask(omask); + execve(_PATH_BSHELL, argp, environ); + _exit(127); + } + + intsave = signal(SIGINT, SIG_IGN); + quitsave = signal(SIGQUIT, SIG_IGN); + pid = waitpid(pid, (int *)&pstat, 0); + (void)sigsetmask(omask); + (void)signal(SIGINT, intsave); + (void)signal(SIGQUIT, quitsave); + return(pid == -1 ? -1 : pstat); +} -- cgit v1.2.3-55-g6feb