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