/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ #pragma ident "%Z%%M% %I% %E% SMI" /* * execle(file, arg1, arg2, ..., 0, envp) */ #pragma weak _execle = execle #include "lint.h" #include <sys/types.h> #include <alloca.h> #include <malloc.h> #include <stdarg.h> #include <unistd.h> /*VARARGS1*/ int execle(const char *file, const char *arg0, ...) { char **argp; va_list args; char **argvec; register char **environmentp; int err; int nargs = 0; char *nextarg; /* * count the number of arguments in the variable argument list * and allocate an argument vector for them on the stack, * adding space at the end for a terminating null pointer */ va_start(args, arg0); while (va_arg(args, char *) != (char *)0) { nargs++; } /* * save the environment pointer, which is at the end of the * variable argument list */ environmentp = va_arg(args, char **); va_end(args); /* * load the arguments in the variable argument list * into the argument vector, and add the terminating null pointer */ va_start(args, arg0); /* workaround for bugid 1242839 */ argvec = (char **)alloca((size_t)((nargs + 2) * sizeof (char *))); argp = argvec; *argp++ = (char *)arg0; while ((nextarg = va_arg(args, char *)) != (char *)0) { *argp++ = nextarg; } va_end(args); *argp = (char *)0; /* * call execve() */ err = execve(file, argvec, environmentp); return (err); }