1/***********************************************************************
2*                                                                      *
3*               This software is part of the ast package               *
4*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
5*                      and is licensed under the                       *
6*                  Common Public License, Version 1.0                  *
7*                    by AT&T Intellectual Property                     *
8*                                                                      *
9*                A copy of the License is available at                 *
10*            http://www.opensource.org/licenses/cpl1.0.txt             *
11*         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12*                                                                      *
13*              Information and Software Systems Research               *
14*                            AT&T Research                             *
15*                           Florham Park NJ                            *
16*                                                                      *
17*                 Glenn Fowler <gsf@research.att.com>                  *
18*                  David Korn <dgk@research.att.com>                   *
19*                   Phong Vo <kpv@research.att.com>                    *
20*                                                                      *
21***********************************************************************/
22#pragma prototyped
23
24#include <ast.h>
25
26#undef	_lib_getopt	/* we can satisfy the api */
27
28#if _lib_getopt
29
30NoN(getopt)
31
32#else
33
34#undef	_BLD_ast	/* enable ast imports since we're user static */
35
36#include <error.h>
37#include <option.h>
38
39int		opterr = 1;
40int		optind = 1;
41int		optopt = 0;
42char*		optarg = 0;
43
44static int	lastoptind;
45
46extern int
47getopt(int argc, char* const* argv, const char* optstring)
48{
49	int	n;
50
51	NoP(argc);
52	opt_info.index = (optind > 1 || optind == lastoptind) ? optind : 0;
53	if (opt_info.index >= argc)
54		return -1;
55	switch (n = optget((char**)argv, optstring))
56	{
57	case ':':
58		n = '?';
59		/*FALLTHROUGH*/
60	case '?':
61		if (opterr && (!optstring || *optstring != ':'))
62		{
63			if (!error_info.id)
64				error_info.id = argv[0];
65			errormsg(NiL, 2, opt_info.arg);
66		}
67		optopt = opt_info.option[1];
68		break;
69	case 0:
70		n = -1;
71		break;
72	}
73	optarg = opt_info.arg;
74	lastoptind = optind = opt_info.index;
75	return n;
76}
77
78#endif
79