2013-01-11 23:28:04 +00:00
|
|
|
/* Declarations for getopt.
|
2015-01-01 22:26:41 +00:00
|
|
|
Copyright (C) 1989-1994, 1996-1999, 2001, 2003-2007, 2009-2015 Free
|
2014-01-01 07:43:34 +00:00
|
|
|
Software Foundation, Inc.
|
2013-01-11 23:28:04 +00:00
|
|
|
This file is part of the GNU C Library.
|
|
|
|
|
|
|
|
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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
|
|
#ifndef _GL_GETOPT_H
|
|
|
|
|
|
|
|
#if __GNUC__ >= 3
|
|
|
|
#pragma GCC system_header
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
|
|
/* The include_next requires a split double-inclusion guard. We must
|
|
|
|
also inform the replacement unistd.h to not recursively use
|
|
|
|
<getopt.h>; our definitions will be present soon enough. */
|
|
|
|
#if HAVE_GETOPT_H
|
|
|
|
# define _GL_SYSTEM_GETOPT
|
|
|
|
# ifndef __GNUC__
|
|
|
|
# include <next_getopt.h>
|
|
|
|
# else
|
|
|
|
# include_next <getopt.h>
|
|
|
|
# endif
|
|
|
|
# undef _GL_SYSTEM_GETOPT
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef _GL_GETOPT_H
|
|
|
|
|
|
|
|
#ifndef __need_getopt
|
|
|
|
# define _GL_GETOPT_H 1
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Standalone applications should #define __GETOPT_PREFIX to an
|
|
|
|
identifier that prefixes the external functions and variables
|
|
|
|
defined in this header. When this happens, include the
|
|
|
|
headers that might declare getopt so that they will not cause
|
|
|
|
confusion if included after this file (if the system had <getopt.h>,
|
|
|
|
we have already included it). Then systematically rename
|
|
|
|
identifiers so that they do not collide with the system functions
|
|
|
|
and variables. Renaming avoids problems with some compilers and
|
|
|
|
linkers. */
|
|
|
|
#if defined __GETOPT_PREFIX && !defined __need_getopt
|
|
|
|
# if !HAVE_GETOPT_H
|
|
|
|
# define __need_system_stdlib_h
|
|
|
|
# include <stdlib.h>
|
|
|
|
# undef __need_system_stdlib_h
|
|
|
|
# include <stdio.h>
|
|
|
|
# include <unistd.h>
|
|
|
|
# endif
|
|
|
|
# undef __need_getopt
|
|
|
|
# undef getopt
|
|
|
|
# undef getopt_long
|
|
|
|
# undef getopt_long_only
|
|
|
|
# undef optarg
|
|
|
|
# undef opterr
|
|
|
|
# undef optind
|
|
|
|
# undef optopt
|
|
|
|
# undef option
|
|
|
|
# define __GETOPT_CONCAT(x, y) x ## y
|
|
|
|
# define __GETOPT_XCONCAT(x, y) __GETOPT_CONCAT (x, y)
|
|
|
|
# define __GETOPT_ID(y) __GETOPT_XCONCAT (__GETOPT_PREFIX, y)
|
|
|
|
# define getopt __GETOPT_ID (getopt)
|
|
|
|
# define getopt_long __GETOPT_ID (getopt_long)
|
|
|
|
# define getopt_long_only __GETOPT_ID (getopt_long_only)
|
|
|
|
# define optarg __GETOPT_ID (optarg)
|
|
|
|
# define opterr __GETOPT_ID (opterr)
|
|
|
|
# define optind __GETOPT_ID (optind)
|
|
|
|
# define optopt __GETOPT_ID (optopt)
|
|
|
|
# define option __GETOPT_ID (option)
|
|
|
|
# define _getopt_internal __GETOPT_ID (getopt_internal)
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Standalone applications get correct prototypes for getopt_long and
|
|
|
|
getopt_long_only; they declare "char **argv". libc uses prototypes
|
|
|
|
with "char *const *argv" that are incorrect because getopt_long and
|
|
|
|
getopt_long_only can permute argv; this is required for backward
|
|
|
|
compatibility (e.g., for LSB 2.0.1).
|
|
|
|
|
|
|
|
This used to be '#if defined __GETOPT_PREFIX && !defined __need_getopt',
|
|
|
|
but it caused redefinition warnings if both unistd.h and getopt.h were
|
|
|
|
included, since unistd.h includes getopt.h having previously defined
|
|
|
|
__need_getopt.
|
|
|
|
|
|
|
|
The only place where __getopt_argv_const is used is in definitions
|
|
|
|
of getopt_long and getopt_long_only below, but these are visible
|
|
|
|
only if __need_getopt is not defined, so it is quite safe to rewrite
|
|
|
|
the conditional as follows:
|
|
|
|
*/
|
|
|
|
#if !defined __need_getopt
|
|
|
|
# if defined __GETOPT_PREFIX
|
|
|
|
# define __getopt_argv_const /* empty */
|
|
|
|
# else
|
|
|
|
# define __getopt_argv_const const
|
|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* If __GNU_LIBRARY__ is not already defined, either we are being used
|
|
|
|
standalone, or this is the first header included in the source file.
|
|
|
|
If we are being used with glibc, we need to include <features.h>, but
|
|
|
|
that does not exist if we are standalone. So: if __GNU_LIBRARY__ is
|
|
|
|
not defined, include <ctype.h>, which will pull in <features.h> for us
|
|
|
|
if it's from glibc. (Why ctype.h? It's guaranteed to exist and it
|
|
|
|
doesn't flood the namespace with stuff the way some other headers do.) */
|
|
|
|
#if !defined __GNU_LIBRARY__
|
|
|
|
# include <ctype.h>
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef __THROW
|
|
|
|
# ifndef __GNUC_PREREQ
|
|
|
|
# define __GNUC_PREREQ(maj, min) (0)
|
|
|
|
# endif
|
|
|
|
# if defined __cplusplus && __GNUC_PREREQ (2,8)
|
|
|
|
# define __THROW throw ()
|
|
|
|
# else
|
|
|
|
# define __THROW
|
|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* The definition of _GL_ARG_NONNULL is copied here. */
|
|
|
|
/* A C macro for declaring that specific arguments must not be NULL.
|
2014-01-01 08:31:29 +00:00
|
|
|
Copyright (C) 2009-2014 Free Software Foundation, Inc.
|
2013-01-11 23:28:04 +00:00
|
|
|
|
|
|
|
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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
|
|
/* _GL_ARG_NONNULL((n,...,m)) tells the compiler and static analyzer tools
|
|
|
|
that the values passed as arguments n, ..., m must be non-NULL pointers.
|
|
|
|
n = 1 stands for the first argument, n = 2 for the second argument etc. */
|
|
|
|
#ifndef _GL_ARG_NONNULL
|
|
|
|
# if (__GNUC__ == 3 && __GNUC_MINOR__ >= 3) || __GNUC__ > 3
|
|
|
|
# define _GL_ARG_NONNULL(params) __attribute__ ((__nonnull__ params))
|
|
|
|
# else
|
|
|
|
# define _GL_ARG_NONNULL(params)
|
|
|
|
# endif
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#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 *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 -1, 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;
|
|
|
|
|
|
|
|
/* Set to an option character which was unrecognized. */
|
|
|
|
|
|
|
|
extern int optopt;
|
|
|
|
|
|
|
|
#ifndef __need_getopt
|
|
|
|
/* 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. */
|
|
|
|
|
|
|
|
# if !GNULIB_defined_struct_option
|
|
|
|
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;
|
|
|
|
};
|
|
|
|
# define GNULIB_defined_struct_option 1
|
|
|
|
# endif
|
|
|
|
|
|
|
|
/* Names for the values of the 'has_arg' field of 'struct option'. */
|
|
|
|
|
|
|
|
# define no_argument 0
|
|
|
|
# define required_argument 1
|
|
|
|
# define optional_argument 2
|
|
|
|
#endif /* need getopt */
|
|
|
|
|
|
|
|
|
|
|
|
/* Get definitions and prototypes for functions to process the
|
|
|
|
arguments in ARGV (ARGC of them, minus the program name) for
|
|
|
|
options given in OPTS.
|
|
|
|
|
|
|
|
Return the option character from OPTS just read. Return -1 when
|
|
|
|
there are no more options. For unrecognized options, or options
|
|
|
|
missing arguments, 'optopt' is set to the option letter, and '?' is
|
|
|
|
returned.
|
|
|
|
|
|
|
|
The OPTS string is a list of characters which are recognized option
|
|
|
|
letters, optionally followed by colons, specifying that that letter
|
|
|
|
takes an argument, to be placed in 'optarg'.
|
|
|
|
|
|
|
|
If a letter in OPTS is followed by two colons, its argument is
|
|
|
|
optional. This behavior is specific to the GNU 'getopt'.
|
|
|
|
|
|
|
|
The argument '--' causes premature termination of argument
|
|
|
|
scanning, explicitly telling 'getopt' that there are no more
|
|
|
|
options.
|
|
|
|
|
|
|
|
If OPTS begins with '-', then non-option arguments are treated as
|
|
|
|
arguments to the option '\1'. This behavior is specific to the GNU
|
|
|
|
'getopt'. If OPTS begins with '+', or POSIXLY_CORRECT is set in
|
|
|
|
the environment, then do not permute arguments. */
|
|
|
|
|
|
|
|
extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
|
|
|
|
__THROW _GL_ARG_NONNULL ((2, 3));
|
|
|
|
|
|
|
|
#ifndef __need_getopt
|
|
|
|
extern int getopt_long (int ___argc, char *__getopt_argv_const *___argv,
|
|
|
|
const char *__shortopts,
|
|
|
|
const struct option *__longopts, int *__longind)
|
|
|
|
__THROW _GL_ARG_NONNULL ((2, 3));
|
|
|
|
extern int getopt_long_only (int ___argc, char *__getopt_argv_const *___argv,
|
|
|
|
const char *__shortopts,
|
|
|
|
const struct option *__longopts, int *__longind)
|
|
|
|
__THROW _GL_ARG_NONNULL ((2, 3));
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/* Make sure we later can get all the definitions and declarations. */
|
|
|
|
#undef __need_getopt
|
|
|
|
|
|
|
|
#endif /* _GL_GETOPT_H */
|
|
|
|
#endif /* _GL_GETOPT_H */
|