| 1 | #ifndef __GETOPT_H__
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| 2 | /*
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| 3 | * getopt.h
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| 4 | *
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| 5 | * $Id: getopt.h,v 7d9fd83ab3c3 2014/10/21 21:25:10 keithmarshall $
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| 6 | *
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| 7 | * Defines constants and function prototypes required to implement
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| 8 | * the `getopt', `getopt_long' and `getopt_long_only' APIs.
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| 9 | *
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| 10 | * This file is part of the MinGW32 package set.
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| 11 | *
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| 12 | * Contributed by Keith Marshall <keithmarshall@users.sourceforge.net>
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| 13 | *
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| 14 | *
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| 15 | * THIS SOFTWARE IS NOT COPYRIGHTED
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| 16 | *
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| 17 | * This source code is offered for use in the public domain. You may
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| 18 | * use, modify or distribute it freely.
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| 19 | *
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| 20 | * This code is distributed in the hope that it will be useful but
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| 21 | * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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| 22 | * DISCLAIMED. This includes but is not limited to warranties of
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| 23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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| 24 | *
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| 25 | * $Revision: 7d9fd83ab3c3 $
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| 26 | * $Author: keithmarshall $
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| 27 | * $Date: 2014/10/21 21:25:10 $
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| 28 | *
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| 29 | */
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| 30 | #define __GETOPT_H__
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| 31 |
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| 32 | /* All the headers include this file. */
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| 33 | #include <_mingw.h>
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| 34 |
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| 35 | #ifdef __cplusplus
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| 36 | extern "C" {
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| 37 | #endif
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| 38 |
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| 39 | extern int optind; /* index of first non-option in argv */
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| 40 | extern int optopt; /* single option character, as parsed */
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| 41 | extern int opterr; /* flag to enable built-in diagnostics... */
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| 42 | /* (user may set to zero, to suppress) */
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| 43 |
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| 44 | extern char *optarg; /* pointer to argument of current option */
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| 45 |
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| 46 | extern int getopt( int, char * const [], const char * );
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| 47 |
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| 48 | #ifdef _BSD_SOURCE
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| 49 | /*
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| 50 | * BSD adds the non-standard `optreset' feature, for reinitialisation
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| 51 | * of `getopt' parsing. We support this feature, for applications which
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| 52 | * proclaim their BSD heritage, before including this header; however,
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| 53 | * to maintain portability, developers are advised to avoid it.
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| 54 | */
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| 55 | # define optreset __mingw_optreset
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| 56 |
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| 57 | extern int optreset;
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| 58 | #endif
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| 59 | #ifdef __cplusplus
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| 60 | }
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| 61 | #endif
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| 62 | /*
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| 63 | * POSIX requires the `getopt' API to be specified in `unistd.h';
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| 64 | * thus, `unistd.h' includes this header. However, we do not want
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| 65 | * to expose the `getopt_long' or `getopt_long_only' APIs, when
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| 66 | * included in this manner. Thus, close the standard __GETOPT_H__
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| 67 | * declarations block, and open an additional __GETOPT_LONG_H__
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| 68 | * specific block, only when *not* __UNISTD_H_SOURCED__, in which
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| 69 | * to declare the extended API.
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| 70 | */
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| 71 | #endif /* !defined(__GETOPT_H__) */
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| 72 | #if !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__)
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| 73 | #define __GETOPT_LONG_H__
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| 74 |
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| 75 | #ifdef __cplusplus
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| 76 | extern "C" {
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| 77 | #endif
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| 78 |
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| 79 | struct option /* specification for a long form option... */
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| 80 | {
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| 81 | const char *name; /* option name, without leading hyphens */
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| 82 | int has_arg; /* does it take an argument? */
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| 83 | int *flag; /* where to save its status, or NULL */
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| 84 | int val; /* its associated status value */
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| 85 | };
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| 86 |
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| 87 | enum /* permitted values for its `has_arg' field... */
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| 88 | {
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| 89 | no_argument = 0, /* option never takes an argument */
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| 90 | required_argument, /* option always requires an argument */
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| 91 | optional_argument /* option may take an argument */
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| 92 | };
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| 93 |
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| 94 | extern int getopt_long( int, char * const [], const char *, const struct option *, int * );
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| 95 | extern int getopt_long_only( int, char * const [], const char *, const struct option *, int * );
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| 96 | /*
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| 97 | * Previous MinGW implementation had...
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| 98 | */
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| 99 | #ifndef HAVE_DECL_GETOPT
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| 100 | /*
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| 101 | * ...for the long form API only; keep this for compatibility.
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| 102 | */
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| 103 | # define HAVE_DECL_GETOPT 1
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| 104 | #endif
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| 105 |
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| 106 | #ifdef __cplusplus
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| 107 | }
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| 108 | #endif
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| 109 |
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| 110 | #endif /* !defined(__UNISTD_H_SOURCED__) && !defined(__GETOPT_LONG_H__) */
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| 111 | /* $RCSfile: getopt.h,v $$Revision: 7d9fd83ab3c3 $: end of file */
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