diff options
author | Arne Schwabe <arne@rfc2549.org> | 2012-04-16 19:21:14 +0200 |
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committer | Arne Schwabe <arne@rfc2549.org> | 2012-04-16 19:21:14 +0200 |
commit | 3e4d8f433239c40311037616b1b8833a06651ae0 (patch) | |
tree | 98ab7fce0d011d34677b0beb762d389cb5c39199 /lzo/lzotest/mygetopt.h |
Initial import
Diffstat (limited to 'lzo/lzotest/mygetopt.h')
-rw-r--r-- | lzo/lzotest/mygetopt.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/lzo/lzotest/mygetopt.h b/lzo/lzotest/mygetopt.h new file mode 100644 index 0000000..a0de9af --- /dev/null +++ b/lzo/lzotest/mygetopt.h @@ -0,0 +1,102 @@ +/* Declarations for getopt. + Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the + Free Software Foundation; either version 2, or (at your option) any + later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#ifndef __MFX_GETOPT_H +#define __MFX_GETOPT_H 1 + +#ifdef __cplusplus +/* extern "C" { */ +#endif + +/* For communication from `getopt' to the caller. + When `getopt' finds an option that takes an argument, + the argument value is returned here. + Also, when `ordering' is RETURN_IN_ORDER, + each non-option ARGV-element is returned here. */ + +extern char *mfx_optarg; + +/* Index in ARGV of the next element to be scanned. + This is used for communication to and from the caller + and for communication between successive calls to `getopt'. + + On entry to `getopt', zero means this is the first call; initialize. + + When `getopt' returns EOF, this is the index of the first of the + non-option elements that the caller should itself scan. + + Otherwise, `optind' communicates from one call to the next + how much of ARGV has been scanned so far. */ + +extern int mfx_optind; + +/* Callers store zero here to inhibit the error message `getopt' prints + for unrecognized options. */ + +extern int mfx_opterr; + +/* Set to an option character which was unrecognized. */ + +extern int mfx_optopt; + +/* Describe the long-named options requested by the application. + The LONG_OPTIONS argument to getopt_long or getopt_long_only is a vector + of `struct option' terminated by an element containing a name which is + zero. + + The field `has_arg' is: + no_argument (or 0) if the option does not take an argument, + required_argument (or 1) if the option requires an argument, + optional_argument (or 2) if the option takes an optional argument. + + If the field `flag' is not NULL, it points to a variable that is set + to the value given in the field `val' when the option is found, but + left unchanged if the option is not found. + + To have a long-named option do something other than set an `int' to + a compiled-in constant, such as set a value from `optarg', set the + option's `flag' field to zero and its `val' field to a nonzero + value (the equivalent single-letter option character, if there is + one). For long options that have a zero `flag' field, `getopt' + returns the contents of the `val' field. */ + +struct mfx_option +{ + const char *name; + /* has_arg can't be an enum because some compilers complain about + type mismatches in all the code that assumes it is an int. */ + int has_arg; + int *flag; + int val; +}; + +/* Names for the values of the `has_arg' field of `struct option'. */ + +#define mfx_no_argument 0 +#define mfx_required_argument 1 +#define mfx_optional_argument 2 +#define mfx_exact_argument 0x10 /* no abbrev. */ + +int mfx_getopt(int argc, char **argv, const char *shortopts); +int mfx_getopt_long(int argc, char **argv, const char *shortopts, + const struct mfx_option *longopts, int *longind); + +#ifdef __cplusplus +/* } */ +#endif + +#endif /* __MFX_GETOPT_H */ |