getopt.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* GNU-like getopt_long(), getopt_long_only().
* Solaris-specific getopt_clip().
*/
#ifndef _GETOPT_H
#define _GETOPT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
/*
* Values for has_arg field.
*
* optional_argument is not supported by getopt_clip()
*/
#define no_argument 0
#define required_argument 1
#define optional_argument 2
struct option {
char *name; /* name of long option */
int has_arg; /* whether option takes an argument */
int *flag; /* if not NULL, set *flag to val when option found */
int val; /* if flag is not NULL, value to set *flag to. */
/* if flag is NULL, return value */
};
/*
* External variables used by these routines.
*/
extern char *optarg;
extern int opterr;
extern int optind;
extern int optopt;
/*
* The use of getopt_long_only in new development is strongly discouraged.
*/
#ifdef __STDC__
extern int getopt_long(int, char * const *, const char *,
const struct option *, int *);
extern int getopt_long_only(int, char * const *, const char *,
const struct option *, int *);
extern int getopt_clip(int, char * const *, const char *,
const struct option *, int *);
#else /* __STDC__ */
extern int getopt_long();
extern int getopt_long_only();
extern int getopt_clip();
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#endif /* _GETOPT_H */