my_getopt.h

   1 /*
   2  *  my_getopt.h - interface to my re-implementation of getopt.
   3  *  Copyright 1997, 2000, 2001, 2002, Benjamin Sittler
   4  *
   5  *  Permission is hereby granted, free of charge, to any person
   6  *  obtaining a copy of this software and associated documentation
   7  *  files (the "Software"), to deal in the Software without
   8  *  restriction, including without limitation the rights to use, copy,
   9  *  modify, merge, publish, distribute, sublicense, and/or sell copies
  10  *  of the Software, and to permit persons to whom the Software is
  11  *  furnished to do so, subject to the following conditions:
  12  *
  13  *  The above copyright notice and this permission notice shall be
  14  *  included in all copies or substantial portions of the Software.
  15  *
  16  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  17  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  18  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  19  *  NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  20  *  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  21  *  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  *  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  *  DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 #ifndef MY_GETOPT_H_INCLUDED
  27 #define MY_GETOPT_H_INCLUDED
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /* UNIX-style short-argument parser */
  34 extern int my_getopt(int argc, char * argv[], const char *opts);
  35
  36 extern int my_optind, my_opterr, my_optopt;
  37 extern char *my_optarg;
  38
  39 struct option {
  40   const char *name;
  41   int has_arg;
  42   int *flag;
  43   int val;
  44 };
  45
  46 /* human-readable values for has_arg */
  47 #undef no_argument
  48 #define no_argument 0
  49 #undef required_argument
  50 #define required_argument 1
  51 #undef optional_argument
  52 #define optional_argument 2
  53
  54 /* GNU-style long-argument parsers */
  55 extern int my_getopt_long(int argc, char * argv[], const char *shortopts,
  56                        const struct option *longopts, int *longind);
  57
  58 extern int my_getopt_long_only(int argc, char * argv[], const char *shortopts,
  59                             const struct option *longopts, int *longind);
  60
  61 extern int _my_getopt_internal(int argc, char * argv[], const char *shortopts,
  62                             const struct option *longopts, int *longind,
  63                             int long_only);
  64
  65 #ifdef __cplusplus
  66 }
  67 #endif
  68
  69 #endif /* MY_GETOPT_H_INCLUDED */