mygetopt.h 2.6 KB

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  1. /* $NetBSD: getopt.h,v 1.8 2007/11/06 19:21:18 christos Exp $ */
  2. /*-
  3. * Copyright (c) 2000 The NetBSD Foundation, Inc.
  4. * All rights reserved.
  5. *
  6. * This code is derived from software contributed to The NetBSD Foundation
  7. * by Dieter Baron and Thomas Klausner.
  8. *
  9. * Redistribution and use in source and binary forms, with or without
  10. * modification, are permitted provided that the following conditions
  11. * are met:
  12. * 1. Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. * 2. Redistributions in binary form must reproduce the above copyright
  15. * notice, this list of conditions and the following disclaimer in the
  16. * documentation and/or other materials provided with the distribution.
  17. * 3. All advertising materials mentioning features or use of this software
  18. * must display the following acknowledgement:
  19. * This product includes software developed by the NetBSD
  20. * Foundation, Inc. and its contributors.
  21. * 4. Neither the name of The NetBSD Foundation nor the names of its
  22. * contributors may be used to endorse or promote products derived
  23. * from this software without specific prior written permission.
  24. *
  25. * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  26. * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27. * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28. * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  29. * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35. * POSSIBILITY OF SUCH DAMAGE.
  36. */
  37. #ifndef _GETOPT_H_
  38. #define _GETOPT_H_
  39. #include <unistd.h>
  40. /*
  41. * Gnu like getopt_long() and BSD4.4 getsubopt()/optreset extensions
  42. */
  43. #define no_argument 0
  44. #define required_argument 1
  45. #define optional_argument 2
  46. struct option {
  47. /* name of long option */
  48. const char *name;
  49. /*
  50. * one of no_argument, required_argument, and optional_argument:
  51. * whether option takes an argument
  52. */
  53. int has_arg;
  54. /* if not NULL, set *flag to val when option found */
  55. int *flag;
  56. /* if flag not NULL, value to set *flag to; else return value */
  57. int val;
  58. };
  59. int getopt_long(int, char * const *, const char *,
  60. const struct option *, int *);
  61. #endif /* !_GETOPT_H_ */