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evanlucasevanlucas
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src: add getopt option parser
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8 files changed

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-279
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8 files changed

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‎deps/getopt/getopt.c

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/* $NetBSD: getopt.c,v 1.29 2014/06/05 22:00:22 christos Exp $ */
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/*
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* Copyright (c) 1987, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95";
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#endif /* LIBC_SCCS and not lint */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifdef WIN32
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#ifdef _MSC_VER
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/* ignore MSVC++ warnings that are annoying and hard to remove:
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4702 unreachable code
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(there is an unreachable assert(0) in case somehow it is reached)
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*/
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#pragma warning( disable : 4702 )
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#endif
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#else /* WIN32 */
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#include <sys/cdefs.h>
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#include <unistd.h>
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#endif
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int opterr = 1, /* if error message should be printed */
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optind = 1, /* index into parent argv vector */
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optopt, /* character checked for validity */
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optreset; /* reset getopt */
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char *optarg; /* argument associated with option */
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#define BADCH (int)'?'
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#define BADARG (int)':'
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#define EMSG ""
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/*
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* getopt --
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* Parse argc/argv argument vector.
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*/
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int
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getopt(int nargc, char * const nargv[], const char *ostr)
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{
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static char *place = EMSG; /* option letter processing */
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char *oli; /* option letter list index */
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if (optreset || *place == 0) { /* update scanning pointer */
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optreset = 0;
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place = nargv[optind];
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if (optind >= nargc || *place++ != '-') {
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/* Argument is absent or is not an option */
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place = EMSG;
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return (-1);
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}
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optopt = *place++;
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if (optopt == '-' && *place == 0) {
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/* "--" => end of options */
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++optind;
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place = EMSG;
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return (-1);
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}
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if (optopt == 0) {
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/* Solitary '-', treat as a '-' option
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if the program (eg su) is looking for it. */
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place = EMSG;
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if (strchr(ostr, '-') == NULL)
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return (-1);
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optopt = '-';
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}
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} else
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optopt = *place++;
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/* See if option letter is one the caller wanted... */
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if (optopt == ':' || (oli = strchr(ostr, optopt)) == NULL) {
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if (*place == 0)
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++optind;
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if (opterr && *ostr != ':')
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(void)fprintf(stderr,
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"iojs: illegal option -- %c\n", optopt);
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return (BADCH);
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}
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/* Does this option need an argument? */
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if (oli[1] != ':') {
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/* don't need argument */
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optarg = NULL;
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if (*place == 0)
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++optind;
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} else {
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/* Option-argument is either the rest of this argument or the
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entire next argument. */
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if (*place)
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optarg = place;
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else if (oli[2] == ':')
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/*
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* GNU Extension, for optional arguments if the rest of
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* the argument is empty, we return NULL
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*/
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optarg = NULL;
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else if (nargc > ++optind)
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optarg = nargv[optind];
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else {
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/* option-argument absent */
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place = EMSG;
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if (*ostr == ':')
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return (BADARG);
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if (opterr)
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(void)fprintf(stderr,
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"iojs: option requires an argument -- %c\n", optopt);
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return (BADCH);
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}
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place = EMSG;
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++optind;
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}
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return (optopt); /* return option letter */
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}

‎deps/getopt/getopt.gyp

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{
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'targets': [
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{
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'target_name': 'getopt',
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'type': 'static_library',
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'sources': [
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'getopt.h',
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'getopt.c',
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'getopt_long.c'
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]
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}
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]
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}

‎deps/getopt/getopt.h

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/* $NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $ */
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/* $FreeBSD$ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Dieter Baron and Thomas Klausner.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _GETOPT_H_
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#define _GETOPT_H_
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#ifdef WIN32
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#ifdef __cplusplus
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#define __BEGIN_DECLS extern "C" {
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#define __END_DECLS }
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#else
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#define __BEGIN_DECLS
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#define __END_DECLS
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#endif
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#ifdef _MSC_VER
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/* ignore MSVC++ warnings that are annoying and hard to remove:
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4702 unreachable code
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(there is an unreachable assert(0) in case somehow it is reached)
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*/
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#pragma warning( disable : 4702 )
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#endif
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#else /* WIN32 */
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#include <sys/cdefs.h>
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#endif
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/*
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* GNU-like getopt_long()/getopt_long_only() with 4.4BSD optreset extension.
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* getopt() is declared here too for GNU programs.
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*/
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#define no_argument 0
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#define required_argument 1
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#define optional_argument 2
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struct option {
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/* name of long option */
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const char *name;
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/*
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* one of no_argument, required_argument, and optional_argument:
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* whether option takes an argument
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*/
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int has_arg;
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/* if not NULL, set *flag to val when option found */
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int *flag;
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/* if flag not NULL, value to set *flag to; else return value */
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int val;
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/* add description for usage */
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const char *desc;
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};
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__BEGIN_DECLS
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int getopt_long(int, char * const *, const char *,
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const struct option *, int *);
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int getopt_long_only(int, char * const *, const char *,
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const struct option *, int *);
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#ifndef _GETOPT_DECLARED
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#define _GETOPT_DECLARED
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int getopt(int, char * const [], const char *);
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extern char *optarg; /* getopt(3) external variables */
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extern int optind, opterr, optopt;
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#endif
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#ifndef _OPTRESET_DECLARED
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#define _OPTRESET_DECLARED
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extern int optreset; /* getopt(3) external variable */
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#endif
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__END_DECLS
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#endif /* !_GETOPT_H_ */

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