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Diffstat (limited to 'gnu/libexec/uucp/common_sources/getopt.h')
| -rw-r--r-- | gnu/libexec/uucp/common_sources/getopt.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/gnu/libexec/uucp/common_sources/getopt.h b/gnu/libexec/uucp/common_sources/getopt.h new file mode 100644 index 000000000000..1a70e027714e --- /dev/null +++ b/gnu/libexec/uucp/common_sources/getopt.h @@ -0,0 +1,120 @@ +/* Declarations for getopt. + Copyright (C) 1989, 1990, 1991, 1992 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. + + This file was modified slightly by Ian Lance Taylor, November 1992, + for Taylor UUCP. */ + +#ifndef _GETOPT_H +#define _GETOPT_H 1 + +#ifdef __cplusplus +extern "C" { +#endif + +/* Ian Lance Taylor <ian@airs.com> added the following defines for + Taylor UUCP. This avoids reported conflicts with system getopt + definitions. */ +#define getopt gnu_getopt +#define optarg gnu_optarg +#define optind gnu_optind +#define opterr gnu_opterr + +/* 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 *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 optind; + +/* Callers store zero here to inhibit the error message `getopt' prints + for unrecognized options. */ + +extern int opterr; + +/* 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 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'. */ + +enum _argtype +{ + no_argument, + required_argument, + optional_argument +}; + +extern int getopt P((int argc, char *const *argv, const char *shortopts)); +extern int getopt_long P((int argc, char *const *argv, const char *shortopts, + const struct option *longopts, int *longind)); +extern int getopt_long_only P((int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind)); + +/* Internal only. Users should not call this directly. */ +extern int _getopt_internal P((int argc, char *const *argv, + const char *shortopts, + const struct option *longopts, int *longind, + int long_only)); + +#ifdef __cplusplus +} +#endif + +#endif /* _GETOPT_H */ |
