xref: /onnv-gate/usr/src/head/getopt.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate /*
28*0Sstevel@tonic-gate  * GNU-like getopt_long(), getopt_long_only().
29*0Sstevel@tonic-gate  * Solaris-specific getopt_clip().
30*0Sstevel@tonic-gate  */
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifndef	_GETOPT_H
33*0Sstevel@tonic-gate #define	_GETOPT_H
34*0Sstevel@tonic-gate 
35*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
36*0Sstevel@tonic-gate 
37*0Sstevel@tonic-gate #ifdef	__cplusplus
38*0Sstevel@tonic-gate extern "C" {
39*0Sstevel@tonic-gate #endif
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate /*
43*0Sstevel@tonic-gate  * Values for has_arg field.
44*0Sstevel@tonic-gate  *
45*0Sstevel@tonic-gate  * optional_argument is not supported by getopt_clip()
46*0Sstevel@tonic-gate  */
47*0Sstevel@tonic-gate #define	no_argument		0
48*0Sstevel@tonic-gate #define	required_argument	1
49*0Sstevel@tonic-gate #define	optional_argument	2
50*0Sstevel@tonic-gate 
51*0Sstevel@tonic-gate struct option {
52*0Sstevel@tonic-gate 	char *name;	/* name of long option */
53*0Sstevel@tonic-gate 	int has_arg;	/* whether option takes an argument */
54*0Sstevel@tonic-gate 	int *flag;	/* if not NULL, set *flag to val when option found */
55*0Sstevel@tonic-gate 	int val;	/* if flag is not NULL, value to set *flag to. */
56*0Sstevel@tonic-gate 			/* if flag is NULL, return value */
57*0Sstevel@tonic-gate };
58*0Sstevel@tonic-gate 
59*0Sstevel@tonic-gate /*
60*0Sstevel@tonic-gate  * External variables used by these routines.
61*0Sstevel@tonic-gate  */
62*0Sstevel@tonic-gate extern char *optarg;
63*0Sstevel@tonic-gate extern int  opterr;
64*0Sstevel@tonic-gate extern int  optind;
65*0Sstevel@tonic-gate extern int  optopt;
66*0Sstevel@tonic-gate 
67*0Sstevel@tonic-gate /*
68*0Sstevel@tonic-gate  * The use of getopt_long_only in new development is strongly discouraged.
69*0Sstevel@tonic-gate  */
70*0Sstevel@tonic-gate #ifdef __STDC__
71*0Sstevel@tonic-gate extern int	getopt_long(int, char * const *, const char *,
72*0Sstevel@tonic-gate 		    const struct option *, int *);
73*0Sstevel@tonic-gate extern int	getopt_long_only(int, char * const *, const char *,
74*0Sstevel@tonic-gate 		    const struct option *, int *);
75*0Sstevel@tonic-gate extern int	getopt_clip(int, char * const *, const char *,
76*0Sstevel@tonic-gate 		    const struct option *, int *);
77*0Sstevel@tonic-gate #else   /* __STDC__ */
78*0Sstevel@tonic-gate extern int	getopt_long();
79*0Sstevel@tonic-gate extern int	getopt_long_only();
80*0Sstevel@tonic-gate extern int	getopt_clip();
81*0Sstevel@tonic-gate #endif  /* __STDC__ */
82*0Sstevel@tonic-gate 
83*0Sstevel@tonic-gate #ifdef __cplusplus
84*0Sstevel@tonic-gate }
85*0Sstevel@tonic-gate #endif
86*0Sstevel@tonic-gate 
87*0Sstevel@tonic-gate #endif	/* _GETOPT_H */
88