1  /* Internal declarations for getopt.
       2     Copyright (C) 1989-1994,1996-1999,2001,2003,2004
       3     Free Software Foundation, Inc.
       4     This file is part of the GNU C Library.
       5  
       6     This program is free software; you can redistribute it and/or modify
       7     it under the terms of the GNU General Public License as published by
       8     the Free Software Foundation; either version 2, or (at your option)
       9     any later version.
      10  
      11     This program is distributed in the hope that it will be useful,
      12     but WITHOUT ANY WARRANTY; without even the implied warranty of
      13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      14     GNU General Public License for more details.
      15  
      16     You should have received a copy of the GNU General Public License along
      17     with this program; if not, write to the Free Software Foundation,
      18     Inc., 59 Temple Place - Suite 330, Boston, MA 02110-1301, USA.  */
      19  
      20  #ifndef _GETOPT_INT_H
      21  #define _GETOPT_INT_H	1
      22  
      23  extern int _getopt_internal (
      24    int ___argc,
      25    char *const *___argv,
      26    const char *__shortopts,
      27    const struct option *__longopts,
      28    int *__longind,
      29    int __long_only
      30  );
      31  
      32  
      33  /* Reentrant versions which can handle parsing multiple argument
      34     vectors at the same time.  */
      35  
      36  /* Data type for reentrant functions.  */
      37  struct _getopt_data
      38  {
      39    /* These have exactly the same meaning as the corresponding global
      40       variables, except that they are used for the reentrant
      41       versions of getopt.  */
      42    int optind;
      43    int opterr;
      44    int optopt;
      45    char *optarg;
      46  
      47    /* Internal members.  */
      48  
      49    /* True if the internal members have been initialized.  */
      50    int __initialized;
      51  
      52    /* The next char to be scanned in the option-element
      53       in which the last option character we returned was found.
      54       This allows us to pick up the scan where we left off.
      55  
      56       If this is zero, or a null string, it means resume the scan
      57       by advancing to the next ARGV-element.  */
      58    char *__nextchar;
      59  
      60    /* Describe how to deal with options that follow non-option ARGV-elements.
      61  
      62       If the caller did not specify anything,
      63       the default is REQUIRE_ORDER if the environment variable
      64       POSIXLY_CORRECT is defined, PERMUTE otherwise.
      65  
      66       REQUIRE_ORDER means don't recognize them as options;
      67       stop option processing when the first non-option is seen.
      68       This is what Unix does.
      69       This mode of operation is selected by either setting the environment
      70       variable POSIXLY_CORRECT, or using `+' as the first character
      71       of the list of option characters.
      72  
      73       PERMUTE is the default.  We permute the contents of ARGV as we
      74       scan, so that eventually all the non-options are at the end.
      75       This allows options to be given in any order, even with programs
      76       that were not written to expect this.
      77  
      78       RETURN_IN_ORDER is an option available to programs that were
      79       written to expect options and other ARGV-elements in any order
      80       and that care about the ordering of the two.  We describe each
      81       non-option ARGV-element as if it were the argument of an option
      82       with character code 1.  Using `-' as the first character of the
      83       list of option characters selects this mode of operation.
      84  
      85       The special argument `--' forces an end of option-scanning regardless
      86       of the value of `ordering'.  In the case of RETURN_IN_ORDER, only
      87       `--' can cause `getopt' to return -1 with `optind' != ARGC.  */
      88  
      89    enum
      90    {
      91      REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
      92    } __ordering;
      93  
      94    /* If the POSIXLY_CORRECT environment variable is set.  */
      95    int __posixly_correct;
      96  
      97  
      98    /* Handle permutation of arguments.  */
      99  
     100    /* Describe the part of ARGV that contains non-options that have
     101       been skipped.  `first_nonopt' is the index in ARGV of the first
     102       of them; `last_nonopt' is the index after the last of them.  */
     103  
     104    int __first_nonopt;
     105    int __last_nonopt;
     106  
     107  #if defined _LIBC && defined USE_NONOPTION_FLAGS
     108    int __nonoption_flags_max_len;
     109    int __nonoption_flags_len;
     110  # endif
     111  };
     112  
     113  /* The initializer is necessary to set OPTIND and OPTERR to their
     114     default values and to clear the initialization flag.  */
     115  #define _GETOPT_DATA_INITIALIZER	{ 1, 1 }
     116  
     117  extern int _getopt_internal_r (
     118    int ___argc,
     119    char *const *___argv,
     120    const char *__shortopts,
     121    const struct option *__longopts,
     122    int *__longind,
     123    int __long_only,
     124    struct _getopt_data *__data
     125  );
     126  
     127  extern int _getopt_long_r (
     128    int ___argc,
     129    char *const *___argv,
     130    const char *__shortopts,
     131    const struct option *__longopts,
     132    int *__longind,
     133    struct _getopt_data *__data
     134  );
     135  
     136  extern int _getopt_long_only_r (
     137    int ___argc,
     138    char *const *___argv,
     139    const char *__shortopts,
     140    const struct option *__longopts,
     141    int *__longind,
     142    struct _getopt_data *__data
     143  );
     144  
     145  #endif /* getopt_int.h */