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2004-03-08  Paul Eggert  <eggert@cs.ucla.edu>

	Merge from gnulib.  We now assume C89 or better.
	* posix/getopt1.c (const): Remove.
	* posix/getopt.c (const): Likewise.
	* posix/getopt1.c (getopt_long, _getopt_long_r, getopt_long_only,
	_getopt_long_only_r, main): Use prototypes, not old-style definitions.
	* posix/getopt.c (exchange, _getopt_initialize, _getopt_internal_r,
	_getopt_internal, getopt, main): Likewise.
	* posix/getopt.h (getopt, getopt_long, getopt_long_only): Likewise.
	* posix/getopt.c [!defined VMS || !HAVE_STRING_H]:
	Include <string.h> regardless.  No need for <strings.h>.
	[!defined _LIBC]: Include "gettext.h" rather than rolling it ourselves.
	(_): Define to gettext always.
	(my_index): Remove: all uses changed to strchr.
	(strlen): Remove declaration.
	* posix/getopt.h (struct option.name): Always const char *.

2004-03-08  Marcus Brinkmann  <marcus@gnu.org>

	* posix/getopt.h (_getopt_internal): Move to ...
	* posix/getopt_int.h: ... here.  New file.
	* include/getopt_int.h: New file.
	* include/getopt.h: Remove libc_hidden_proto for getopt_long
	and getopt_long_only.
	* posix/getopt1.c: Include "getopt_int.h".  Remove
	libc_hidden_def for getopt_long and getopt_long_only.
	(_getopt_long_r, _getopt_long_only_r): New functions.
	* posix/getopt.c: Include "getopt_int.h".
	(__getopt_initialized): Variable removed.
	(nextchar, ordering, posixly_correct, first_nonopt, last_nonopt):
	Static variables removed.
	(nonoption_flags_max_len, nonoption_flags_len) [_LIBC &&
	USE_NONOPTION_FLAGS]: Static variables removed.
	(getopt_data): New static variable.
	(SWAP_FLAGS): Use d->__nonoption_flags_len instead
	nonoption_flags_len.
	(exchange): Add new argument D of type struct getopt_data *.
	Replace optind with d->optind, optarg with d->optarg, opterr with
	d->opterr, optopt with d->optopt, nextchar with d->__nextchar,
	first_nonopt with d->__first_nonopt, last_nonopt with
	d->__last_nonopt, d->ordering with d->__ordering,
	d->posixly_correct with d->__posixly_correct (which is now an
	int instead a string, so fix users), nonoption_flags_len
	with d->__nonoption_flags_len, nonoption_flags_max_len with
	d->__nonoption_flags_max_len.
	(_getopt_initialize): Likewise.
	(_getopt_internal): Rename to ...
	(_getopt_internal_r): ... this.  Also add new argument D of type
	struct getopt_data * and use of members of D rather than global or
	static variables as described for exchange() above.  Add new argument
	to invocations of _getopt_initialize and exchange.
	(_getopt_internal): Reimplement in terms of _getopt_internal_r.
	* argp/argp-parse.c: Include <getopt_int.h>.
	[_LIBC]: Do not include <bits/libc-lock.h>.
	[!_LIBC && HAVE_CTHREADS_H]: Do not include <cthreads.h>.
	[!_LIBC] (_argp_hang): Make static.
	(getopt_lock, LOCK_GETOPT, UNLOCK_GETOPT): Remove.
	(_argp_unlock_xxx): Remove.
	(parser_init): Do not use LOCK_GETOPT.
	(parser_finalize): Do not use UNLOCK_GETOPT.
	(struct parser): New member OPT_DATA.
	(parser_init): Initialize parser->opt_data.  Use
	parser->opt_data.opterr instead of opterr.
	(parser_parse_opt): Use parser->opt_data.optarg instead optarg.
	(parser_parse_next): Likewise.  Use parser->opt_data.optind
	instead optind.  Use parser->opt_data.optopt instead of optopt.
	Call _getopt_long_only_r and _getopt_long_r instead of
	getopt_long_only and getopt_long, and pass the extra argument.
This commit is contained in:
Ulrich Drepper 2004-03-09 10:36:53 +00:00
parent db30e3097a
commit 511676f708
8 changed files with 452 additions and 424 deletions
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70
ChangeLog
View File

@ -1,3 +1,73 @@
2004-03-08 Paul Eggert <eggert@cs.ucla.edu>
Merge from gnulib. We now assume C89 or better.
* posix/getopt1.c (const): Remove.
* posix/getopt.c (const): Likewise.
* posix/getopt1.c (getopt_long, _getopt_long_r, getopt_long_only,
_getopt_long_only_r, main): Use prototypes, not old-style definitions.
* posix/getopt.c (exchange, _getopt_initialize, _getopt_internal_r,
_getopt_internal, getopt, main): Likewise.
* posix/getopt.h (getopt, getopt_long, getopt_long_only): Likewise.
* posix/getopt.c [!defined VMS || !HAVE_STRING_H]:
Include <string.h> regardless. No need for <strings.h>.
[!defined _LIBC]: Include "gettext.h" rather than rolling it ourselves.
(_): Define to gettext always.
(my_index): Remove: all uses changed to strchr.
(strlen): Remove declaration.
* posix/getopt.h (struct option.name): Always const char *.
2004-03-08 Marcus Brinkmann <marcus@gnu.org>
* posix/getopt.h (_getopt_internal): Move to ...
* posix/getopt_int.h: ... here. New file.
* include/getopt_int.h: New file.
* include/getopt.h: Remove libc_hidden_proto for getopt_long
and getopt_long_only.
* posix/getopt1.c: Include "getopt_int.h". Remove
libc_hidden_def for getopt_long and getopt_long_only.
(_getopt_long_r, _getopt_long_only_r): New functions.
* posix/getopt.c: Include "getopt_int.h".
(__getopt_initialized): Variable removed.
(nextchar, ordering, posixly_correct, first_nonopt, last_nonopt):
Static variables removed.
(nonoption_flags_max_len, nonoption_flags_len) [_LIBC &&
USE_NONOPTION_FLAGS]: Static variables removed.
(getopt_data): New static variable.
(SWAP_FLAGS): Use d->__nonoption_flags_len instead
nonoption_flags_len.
(exchange): Add new argument D of type struct getopt_data *.
Replace optind with d->optind, optarg with d->optarg, opterr with
d->opterr, optopt with d->optopt, nextchar with d->__nextchar,
first_nonopt with d->__first_nonopt, last_nonopt with
d->__last_nonopt, d->ordering with d->__ordering,
d->posixly_correct with d->__posixly_correct (which is now an
int instead a string, so fix users), nonoption_flags_len
with d->__nonoption_flags_len, nonoption_flags_max_len with
d->__nonoption_flags_max_len.
(_getopt_initialize): Likewise.
(_getopt_internal): Rename to ...
(_getopt_internal_r): ... this. Also add new argument D of type
struct getopt_data * and use of members of D rather than global or
static variables as described for exchange() above. Add new argument
to invocations of _getopt_initialize and exchange.
(_getopt_internal): Reimplement in terms of _getopt_internal_r.
* argp/argp-parse.c: Include <getopt_int.h>.
[_LIBC]: Do not include <bits/libc-lock.h>.
[!_LIBC && HAVE_CTHREADS_H]: Do not include <cthreads.h>.
[!_LIBC] (_argp_hang): Make static.
(getopt_lock, LOCK_GETOPT, UNLOCK_GETOPT): Remove.
(_argp_unlock_xxx): Remove.
(parser_init): Do not use LOCK_GETOPT.
(parser_finalize): Do not use UNLOCK_GETOPT.
(struct parser): New member OPT_DATA.
(parser_init): Initialize parser->opt_data. Use
parser->opt_data.opterr instead of opterr.
(parser_parse_opt): Use parser->opt_data.optarg instead optarg.
(parser_parse_next): Likewise. Use parser->opt_data.optind
instead optind. Use parser->opt_data.optopt instead of optopt.
Call _getopt_long_only_r and _getopt_long_r instead of
getopt_long_only and getopt_long, and pass the extra argument.
2004-03-09 Ulrich Drepper <drepper@redhat.com>
* iconv/gconv_db.c: Don't define lock as static. Rename to

102
argp/argp-parse.c
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@ -1,5 +1,5 @@
/* Hierarchial argument parsing, layered over getopt
Copyright (C) 1995-2000, 2002, 2003 Free Software Foundation, Inc.
Copyright (C) 1995-2000, 2002, 2003, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Written by Miles Bader <miles@gnu.ai.mit.edu>.
@ -42,6 +42,7 @@ char *alloca ();
#include <unistd.h>
#include <limits.h>
#include <getopt.h>
#include <getopt_int.h>
#ifndef _
/* This is for other GNU distributions with internationalized messages.
@ -62,14 +63,6 @@ char *alloca ();
# define N_(msgid) (msgid)
#endif
#if _LIBC - 0
#include <bits/libc-lock.h>
#else
#ifdef HAVE_CTHREADS_H
#include <cthreads.h>
#endif
#endif /* _LIBC */
#include "argp.h"
#include "argp-namefrob.h"
@ -97,14 +90,8 @@ char *alloca ();
/* When argp is given the --HANG switch, _ARGP_HANG is set and argp will sleep
for one second intervals, decrementing _ARGP_HANG until it's zero. Thus
you can force the program to continue by attaching a debugger and setting
it to 0 yourself.
XXX This variable used to be exported. But there seems to be no
need, at least not inside libc. */
#ifdef _LIBC
static
#endif
volatile int _argp_hang;
it to 0 yourself. */
static volatile int _argp_hang;
#define OPT_PROGNAME -2
#define OPT_USAGE -3
@ -223,42 +210,7 @@ find_long_option (struct option *long_options, const char *name)
else
return -1;
}
/* If we can, we regulate access to getopt, which is non-reentrant, with a
mutex. Since the case we're trying to guard against is two different
threads interfering, and it's possible that someone might want to call
argp_parse recursively (they're careful), we use a recursive lock if
possible. */
#if _LIBC - 0
__libc_lock_define_initialized_recursive (static, getopt_lock)
#define LOCK_GETOPT __libc_lock_lock_recursive (getopt_lock)
#define UNLOCK_GETOPT __libc_lock_unlock_recursive (getopt_lock)
#else /* !_LIBC */
#ifdef HAVE_CTHREADS_H
static struct mutex getopt_lock = MUTEX_INITIALIZER;
#define LOCK_GETOPT mutex_lock (&getopt_lock)
#define UNLOCK_GETOPT mutex_unlock (&getopt_lock)
#else /* !HAVE_CTHREADS_H */
#define LOCK_GETOPT (void)0
#define UNLOCK_GETOPT (void)0
#endif /* HAVE_CTHREADS_H */
#endif /* _LIBC */
/* This hack to allow programs that know what's going on to call argp
recursively. If someday argp is changed not to use the non-reentrant
getopt interface, we can get rid of this shit. XXX */
void
_argp_unlock_xxx (void)
{
UNLOCK_GETOPT;
}
/* The state of a `group' during parsing. Each group corresponds to a
particular argp structure from the tree of such descending from the top
@ -320,6 +272,8 @@ struct parser
/* LONG_OPTS is the array of getop long option structures for the union of
all the groups of options. */
struct option *long_opts;
/* OPT_DATA is the getopt data used for the re-entrant getopt. */
struct _getopt_data opt_data;
/* States of the various parsing groups. */
struct group *groups;
@ -531,6 +485,7 @@ parser_init (struct parser *parser, const struct argp *argp,
error_t err = 0;
struct group *group;
struct parser_sizes szs;
struct _getopt_data opt_data = _GETOPT_DATA_INITIALIZER;
szs.short_len = (flags & ARGP_NO_ARGS) ? 0 : 1;
szs.long_len = 0;
@ -554,6 +509,7 @@ parser_init (struct parser *parser, const struct argp *argp,
parser->child_inputs = parser->storage + GLEN;
parser->long_opts = parser->storage + GLEN + CLEN;
parser->short_opts = parser->storage + GLEN + CLEN + LLEN;
parser->opt_data = opt_data;
memset (parser->child_inputs, 0, szs.num_child_inputs * sizeof (void *));
parser_convert (parser, argp, flags);
@ -597,19 +553,16 @@ parser_init (struct parser *parser, const struct argp *argp,
if (err)
return err;
/* Getopt is (currently) non-reentrant. */
LOCK_GETOPT;
if (parser->state.flags & ARGP_NO_ERRS)
{
opterr = 0;
parser->opt_data.opterr = 0;
if (parser->state.flags & ARGP_PARSE_ARGV0)
/* getopt always skips ARGV[0], so we have to fake it out. As long
as OPTERR is 0, then it shouldn't actually try to access it. */
parser->state.argv--, parser->state.argc++;
}
else
opterr = 1; /* Print error messages. */
parser->opt_data.opterr = 1; /* Print error messages. */
if (parser->state.argv == argv && argv[0])
/* There's an argv[0]; use it for messages. */
@ -630,8 +583,6 @@ parser_finalize (struct parser *parser,
{
struct group *group;
UNLOCK_GETOPT;
if (err == EBADKEY && arg_ebadkey)
/* Suppress errors generated by unparsed arguments. */
err = 0;
@ -793,7 +744,8 @@ parser_parse_opt (struct parser *parser, int opt, char *val)
for (group = parser->groups; group < parser->egroup; group++)
if (group->short_end > short_index)
{
err = group_parse (group, &parser->state, opt, optarg);
err = group_parse (group, &parser->state, opt,
parser->opt_data.optarg);
break;
}
}
@ -802,7 +754,8 @@ parser_parse_opt (struct parser *parser, int opt, char *val)
the user value in order to preserve the sign. */
err =
group_parse (&parser->groups[group_key - 1], &parser->state,
(opt << GROUP_BITS) >> GROUP_BITS, optarg);
(opt << GROUP_BITS) >> GROUP_BITS,
parser->opt_data.optarg);
if (err == EBADKEY)
/* At least currently, an option not recognized is an error in the
@ -848,15 +801,20 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
if (parser->try_getopt && !parser->state.quoted)
/* Give getopt a chance to parse this. */
{
optind = parser->state.next; /* Put it back in OPTIND for getopt. */
optopt = KEY_END; /* Distinguish KEY_ERR from a real option. */
/* Put it back in OPTIND for getopt. */
parser->opt_data.optind = parser->state.next;
/* Distinguish KEY_ERR from a real option. */
parser->opt_data.optopt = KEY_END;
if (parser->state.flags & ARGP_LONG_ONLY)
opt = getopt_long_only (parser->state.argc, parser->state.argv,
parser->short_opts, parser->long_opts, 0);
opt = _getopt_long_only_r (parser->state.argc, parser->state.argv,
parser->short_opts, parser->long_opts, 0,
&parser->opt_data);
else
opt = getopt_long (parser->state.argc, parser->state.argv,
parser->short_opts, parser->long_opts, 0);
parser->state.next = optind; /* And see what getopt did. */
opt = _getopt_long_r (parser->state.argc, parser->state.argv,
parser->short_opts, parser->long_opts, 0,
&parser->opt_data);
/* And see what getopt did. */
parser->state.next = parser->opt_data.optind;
if (opt == KEY_END)
/* Getopt says there are no more options, so stop using
@ -872,7 +830,7 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
here, whatever happens. */
parser->state.quoted = parser->state.next;
}
else if (opt == KEY_ERR && optopt != KEY_END)
else if (opt == KEY_ERR && parser->opt_data.optopt != KEY_END)
/* KEY_ERR can have the same value as a valid user short
option, but in the case of a real error, getopt sets OPTOPT
to the offending character, which can never be KEY_END. */
@ -898,15 +856,15 @@ parser_parse_next (struct parser *parser, int *arg_ebadkey)
/* A non-option arg; simulate what getopt might have done. */
{
opt = KEY_ARG;
optarg = parser->state.argv[parser->state.next++];
parser->opt_data.optarg = parser->state.argv[parser->state.next++];
}
}
if (opt == KEY_ARG)
/* A non-option argument; try each parser in turn. */
err = parser_parse_arg (parser, optarg);
err = parser_parse_arg (parser, parser->opt_data.optarg);
else
err = parser_parse_opt (parser, opt, optarg);
err = parser_parse_opt (parser, opt, parser->opt_data.optarg);
if (err == EBADKEY)
*arg_ebadkey = (opt == KEY_END || opt == KEY_ARG);

3
include/getopt.h
View File

@ -5,9 +5,6 @@
# ifdef _GETOPT_H
libc_hidden_proto (getopt_long)
libc_hidden_proto (getopt_long_only)
/* Now define the internal interfaces. */
extern void __getopt_clean_environment (char **__env);

1
include/getopt_int.h Normal file
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@ -0,0 +1 @@
#include <posix/getopt_int.h>

489
posix/getopt.c
View File

@ -2,7 +2,7 @@
NOTE: getopt is now part of the C library, so if you don't know what
"Keep this file name-space clean" means, talk to drepper@gnu.org
before changing it!
Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003
Copyright (C) 1987,88,89,90,91,92,93,94,95,96,98,99,2000,2001,2002,2003,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -31,14 +31,6 @@
# include <config.h>
#endif
#if !defined __STDC__ || !__STDC__
/* This is a separate conditional since some stdc systems
reject `defined (const)'. */
# ifndef const
# define const
# endif
#endif
#include <stdio.h>
/* Comment out all this code if we are using the GNU C Library, and are not
@ -69,26 +61,21 @@
# include <unistd.h>
#endif /* GNU C library. */
#include <string.h>
#ifdef VMS
# include <unixlib.h>
# if HAVE_STRING_H - 0
# include <string.h>
# endif
#endif
#ifndef _
/* This is for other GNU distributions with internationalized messages. */
# if (HAVE_LIBINTL_H && ENABLE_NLS) || defined _LIBC
# include <libintl.h>
# ifndef _
# define _(msgid) gettext (msgid)
# endif
# else
# define _(msgid) (msgid)
# endif
# if defined _LIBC && defined USE_IN_LIBIO
# include <wchar.h>
# endif
#ifdef _LIBC
# include <libintl.h>
#else
# include "gettext.h"
#endif
#define _(msgid) gettext (msgid)
#if defined _LIBC && defined USE_IN_LIBIO
# include <wchar.h>
#endif
#ifndef attribute_hidden
@ -110,6 +97,7 @@
they can distinguish the relative order of options and other arguments. */
#include "getopt.h"
#include "getopt_int.h"
/* For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument,
@ -134,21 +122,6 @@ char *optarg;
/* 1003.2 says this must be 1 before any call. */
int optind = 1;
/* Formerly, initialization of getopt depended on optind==0, which
causes problems with re-calling getopt as programs generally don't
know that. */
int __getopt_initialized attribute_hidden;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
This allows us to pick up the scan where we left off.
If this is zero, or a null string, it means resume the scan
by advancing to the next ARGV-element. */
static char *nextchar;
/* Callers store zero here to inhibit the error message
for unrecognized options. */
@ -160,57 +133,12 @@ int opterr = 1;
int optopt = '?';
/* Describe how to deal with options that follow non-option ARGV-elements.
/* Keep a global copy of all internal members of getopt_data. */
If the caller did not specify anything,
the default is REQUIRE_ORDER if the environment variable
POSIXLY_CORRECT is defined, PERMUTE otherwise.
static struct _getopt_data getopt_data;
REQUIRE_ORDER means don't recognize them as options;
stop option processing when the first non-option is seen.
This is what Unix does.
This mode of operation is selected by either setting the environment
variable POSIXLY_CORRECT, or using `+' as the first character
of the list of option characters.
PERMUTE is the default. We permute the contents of ARGV as we scan,
so that eventually all the non-options are at the end. This allows options
to be given in any order, even with programs that were not written to
expect this.
RETURN_IN_ORDER is an option available to programs that were written
to expect options and other ARGV-elements in any order and that care about
the ordering of the two. We describe each non-option ARGV-element
as if it were the argument of an option with character code 1.
Using `-' as the first character of the list of option characters
selects this mode of operation.
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
static enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
/* Value of POSIXLY_CORRECT environment variable. */
static char *posixly_correct;
#ifdef __GNU_LIBRARY__
/* We want to avoid inclusion of string.h with non-GNU libraries
because there are many ways it can cause trouble.
On some systems, it contains special magic macros that don't work
in GCC. */
# include <string.h>
# define my_index strchr
#else
# if HAVE_STRING_H
# include <string.h>
# else
# include <strings.h>
# endif
#ifndef __GNU_LIBRARY__
/* Avoid depending on library functions or files
whose names are inconsistent. */
@ -219,43 +147,8 @@ static char *posixly_correct;
extern char *getenv ();
#endif
static char *
my_index (str, chr)
const char *str;
int chr;
{
while (*str)
{
if (*str == chr)
return (char *) str;
str++;
}
return 0;
}
/* If using GCC, we can safely declare strlen this way.
If not using GCC, it is ok not to declare it. */
#ifdef __GNUC__
/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
That was relevant to code that was here before. */
# if (!defined __STDC__ || !__STDC__) && !defined strlen
/* gcc with -traditional declares the built-in strlen to return int,
and has done so at least since version 2.4.5. -- rms. */
extern int strlen (const char *);
# endif /* not __STDC__ */
#endif /* __GNUC__ */
#endif /* not __GNU_LIBRARY__ */
/* Handle permutation of arguments. */
/* Describe the part of ARGV that contains non-options that have
been skipped. `first_nonopt' is the index in ARGV of the first of them;
`last_nonopt' is the index after the last of them. */
static int first_nonopt;
static int last_nonopt;
#ifdef _LIBC
/* Stored original parameters.
XXX This is no good solution. We should rather copy the args so
@ -269,14 +162,11 @@ extern char **__libc_argv;
# ifdef USE_NONOPTION_FLAGS
/* Defined in getopt_init.c */
extern char *__getopt_nonoption_flags;
static int nonoption_flags_max_len;
static int nonoption_flags_len;
# endif
# ifdef USE_NONOPTION_FLAGS
# define SWAP_FLAGS(ch1, ch2) \
if (nonoption_flags_len > 0) \
if (d->__nonoption_flags_len > 0) \
{ \
char __tmp = __getopt_nonoption_flags[ch1]; \
__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \
@ -298,17 +188,12 @@ static int nonoption_flags_len;
`first_nonopt' and `last_nonopt' are relocated so that they describe
the new indices of the non-options in ARGV after they are moved. */
#if defined __STDC__ && __STDC__
static void exchange (char **);
#endif
static void
exchange (argv)
char **argv;
exchange (char **argv, struct _getopt_data *d)
{
int bottom = first_nonopt;
int middle = last_nonopt;
int top = optind;
int bottom = d->__first_nonopt;
int middle = d->__last_nonopt;
int top = d->optind;
char *tem;
/* Exchange the shorter segment with the far end of the longer segment.
@ -320,19 +205,19 @@ exchange (argv)
/* First make sure the handling of the `__getopt_nonoption_flags'
string can work normally. Our top argument must be in the range
of the string. */
if (nonoption_flags_len > 0 && top >= nonoption_flags_max_len)
if (d->__nonoption_flags_len > 0 && top >= d->__nonoption_flags_max_len)
{
/* We must extend the array. The user plays games with us and
presents new arguments. */
char *new_str = malloc (top + 1);
if (new_str == NULL)
nonoption_flags_len = nonoption_flags_max_len = 0;
d->__nonoption_flags_len = d->__nonoption_flags_max_len = 0;
else
{
memset (__mempcpy (new_str, __getopt_nonoption_flags,
nonoption_flags_max_len),
'\0', top + 1 - nonoption_flags_max_len);
nonoption_flags_max_len = top + 1;
d->__nonoption_flags_max_len),
'\0', top + 1 - d->__nonoption_flags_max_len);
d->__nonoption_flags_max_len = top + 1;
__getopt_nonoption_flags = new_str;
}
}
@ -378,76 +263,71 @@ exchange (argv)
/* Update records for the slots the non-options now occupy. */
first_nonopt += (optind - last_nonopt);
last_nonopt = optind;
d->__first_nonopt += (d->optind - d->__last_nonopt);
d->__last_nonopt = d->optind;
}
/* Initialize the internal data when the first call is made. */
#if defined __STDC__ && __STDC__
static const char *_getopt_initialize (int, char *const *, const char *);
#endif
static const char *
_getopt_initialize (argc, argv, optstring)
int argc;
char *const *argv;
const char *optstring;
_getopt_initialize (int argc, char *const *argv, const char *optstring,
struct _getopt_data *d)
{
/* Start processing options with ARGV-element 1 (since ARGV-element 0
is the program name); the sequence of previously skipped
non-option ARGV-elements is empty. */
first_nonopt = last_nonopt = optind;
d->__first_nonopt = d->__last_nonopt = d->optind;
nextchar = NULL;
d->__nextchar = NULL;
posixly_correct = getenv ("POSIXLY_CORRECT");
d->__posixly_correct = !!getenv ("POSIXLY_CORRECT");
/* Determine how to handle the ordering of options and nonoptions. */
if (optstring[0] == '-')
{
ordering = RETURN_IN_ORDER;
d->__ordering = RETURN_IN_ORDER;
++optstring;
}
else if (optstring[0] == '+')
{
ordering = REQUIRE_ORDER;
d->__ordering = REQUIRE_ORDER;
++optstring;
}
else if (posixly_correct != NULL)
ordering = REQUIRE_ORDER;
else if (d->__posixly_correct)
d->__ordering = REQUIRE_ORDER;
else
ordering = PERMUTE;
d->__ordering = PERMUTE;
#if defined _LIBC && defined USE_NONOPTION_FLAGS
if (posixly_correct == NULL
if (!d->__posixly_correct
&& argc == __libc_argc && argv == __libc_argv)
{
if (nonoption_flags_max_len == 0)
if (d->__nonoption_flags_max_len == 0)
{
if (__getopt_nonoption_flags == NULL
|| __getopt_nonoption_flags[0] == '\0')
nonoption_flags_max_len = -1;
d->__nonoption_flags_max_len = -1;
else
{
const char *orig_str = __getopt_nonoption_flags;
int len = nonoption_flags_max_len = strlen (orig_str);
if (nonoption_flags_max_len < argc)
nonoption_flags_max_len = argc;
int len = d->__nonoption_flags_max_len = strlen (orig_str);
if (d->__nonoption_flags_max_len < argc)
d->__nonoption_flags_max_len = argc;
__getopt_nonoption_flags =
(char *) malloc (nonoption_flags_max_len);
(char *) malloc (d->__nonoption_flags_max_len);
if (__getopt_nonoption_flags == NULL)
nonoption_flags_max_len = -1;
d->__nonoption_flags_max_len = -1;
else
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len),
'\0', nonoption_flags_max_len - len);
'\0', d->__nonoption_flags_max_len - len);
}
}
nonoption_flags_len = nonoption_flags_max_len;
d->__nonoption_flags_len = d->__nonoption_flags_max_len;
}
else
nonoption_flags_len = 0;
d->__nonoption_flags_len = 0;
#endif
return optstring;
@ -510,29 +390,25 @@ _getopt_initialize (argc, argv, optstring)
long-named options. */
int
_getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int argc;
char *const *argv;
const char *optstring;
const struct option *longopts;
int *longind;
int long_only;
_getopt_internal_r (int argc, char *const *argv, const char *optstring,
const struct option *longopts, int *longind,
int long_only, struct _getopt_data *d)
{
int print_errors = opterr;
int print_errors = d->opterr;
if (optstring[0] == ':')
print_errors = 0;
if (argc < 1)
return -1;
optarg = NULL;
d->optarg = NULL;
if (optind == 0 || !__getopt_initialized)
if (d->optind == 0 || !d->__initialized)
{
if (optind == 0)
optind = 1; /* Don't scan ARGV[0], the program name. */
optstring = _getopt_initialize (argc, argv, optstring);
__getopt_initialized = 1;
if (d->optind == 0)
d->optind = 1; /* Don't scan ARGV[0], the program name. */
optstring = _getopt_initialize (argc, argv, optstring, d);
d->__initialized = 1;
}
/* Test whether ARGV[optind] points to a non-option argument.
@ -540,40 +416,41 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
from the shell indicating it is not an option. The later information
is only used when the used in the GNU libc. */
#if defined _LIBC && defined USE_NONOPTION_FLAGS
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0' \
|| (optind < nonoption_flags_len \
&& __getopt_nonoption_flags[optind] == '1'))
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0' \
|| (d->optind < d->__nonoption_flags_len \
&& __getopt_nonoption_flags[d->optind] == '1'))
#else
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0')
# define NONOPTION_P (argv[d->optind][0] != '-' || argv[d->optind][1] == '\0')
#endif
if (nextchar == NULL || *nextchar == '\0')
if (d->__nextchar == NULL || *d->__nextchar == '\0')
{
/* Advance to the next ARGV-element. */
/* Give FIRST_NONOPT & LAST_NONOPT rational values if OPTIND has been
moved back by the user (who may also have changed the arguments). */
if (last_nonopt > optind)
last_nonopt = optind;
if (first_nonopt > optind)
first_nonopt = optind;
if (d->__last_nonopt > d->optind)
d->__last_nonopt = d->optind;
if (d->__first_nonopt > d->optind)
d->__first_nonopt = d->optind;
if (ordering == PERMUTE)
if (d->__ordering == PERMUTE)
{
/* If we have just processed some options following some non-options,
exchange them so that the options come first. */
if (first_nonopt != last_nonopt && last_nonopt != optind)
exchange ((char **) argv);
else if (last_nonopt != optind)
first_nonopt = optind;
if (d->__first_nonopt != d->__last_nonopt
&& d->__last_nonopt != d->optind)
exchange ((char **) argv, d);
else if (d->__last_nonopt != d->optind)
d->__first_nonopt = d->optind;
/* Skip any additional non-options
and extend the range of non-options previously skipped. */
while (optind < argc && NONOPTION_P)
optind++;
last_nonopt = optind;
while (d->optind < argc && NONOPTION_P)
d->optind++;
d->__last_nonopt = d->optind;
}
/* The special ARGV-element `--' means premature end of options.
@ -581,28 +458,29 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
then exchange with previous non-options as if it were an option,
then skip everything else like a non-option. */
if (optind != argc && !strcmp (argv[optind], "--"))
if (d->optind != argc && !strcmp (argv[d->optind], "--"))
{
optind++;
d->optind++;
if (first_nonopt != last_nonopt && last_nonopt != optind)
exchange ((char **) argv);
else if (first_nonopt == last_nonopt)
first_nonopt = optind;
last_nonopt = argc;
if (d->__first_nonopt != d->__last_nonopt
&& d->__last_nonopt != d->optind)
exchange ((char **) argv, d);
else if (d->__first_nonopt == d->__last_nonopt)
d->__first_nonopt = d->optind;
d->__last_nonopt = argc;
optind = argc;
d->optind = argc;
}
/* If we have done all the ARGV-elements, stop the scan
and back over any non-options that we skipped and permuted. */
if (optind == argc)
if (d->optind == argc)
{
/* Set the next-arg-index to point at the non-options
that we previously skipped, so the caller will digest them. */
if (first_nonopt != last_nonopt)
optind = first_nonopt;
if (d->__first_nonopt != d->__last_nonopt)
d->optind = d->__first_nonopt;
return -1;
}
@ -611,17 +489,17 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
if (NONOPTION_P)
{
if (ordering == REQUIRE_ORDER)
if (d->__ordering == REQUIRE_ORDER)
return -1;
optarg = argv[optind++];
d->optarg = argv[d->optind++];
return 1;
}
/* We have found another option-ARGV-element.
Skip the initial punctuation. */
nextchar = (argv[optind] + 1
+ (longopts != NULL && argv[optind][1] == '-'));
d->__nextchar = (argv[d->optind] + 1
+ (longopts != NULL && argv[d->optind][1] == '-'));
}
/* Decode the current option-ARGV-element. */
@ -640,8 +518,9 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
This distinction seems to be the most useful approach. */
if (longopts != NULL
&& (argv[optind][1] == '-'
|| (long_only && (argv[optind][2] || !my_index (optstring, argv[optind][1])))))
&& (argv[d->optind][1] == '-'
|| (long_only && (argv[d->optind][2]
|| !strchr (optstring, argv[d->optind][1])))))
{
char *nameend;
const struct option *p;
@ -651,15 +530,15 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int indfound = -1;
int option_index;
for (nameend = nextchar; *nameend && *nameend != '='; nameend++)
for (nameend = d->__nextchar; *nameend && *nameend != '='; nameend++)
/* Do nothing. */ ;
/* Test all long options for either exact match
or abbreviated matches. */
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
{
if ((unsigned int) (nameend - nextchar)
if ((unsigned int) (nameend - d->__nextchar)
== (unsigned int) strlen (p->name))
{
/* Exact match found. */
@ -690,7 +569,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
char *buf;
if (__asprintf (&buf, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]) >= 0)
argv[0], argv[d->optind]) >= 0)
{
_IO_flockfile (stderr);
@ -709,25 +588,25 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
#else
fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
argv[0], argv[optind]);
argv[0], argv[d->optind]);
#endif
}
nextchar += strlen (nextchar);
optind++;
optopt = 0;
d->__nextchar += strlen (d->__nextchar);
d->optind++;
d->optopt = 0;
return '?';
}
if (pfound != NULL)
{
option_index = indfound;
optind++;
d->optind++;
if (*nameend)
{
/* Don't test has_arg with >, because some C compilers don't
allow it to be used on enums. */
if (pfound->has_arg)
optarg = nameend + 1;
d->optarg = nameend + 1;
else
{
if (print_errors)
@ -737,7 +616,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int n;
#endif
if (argv[optind - 1][1] == '-')
if (argv[d->optind - 1][1] == '-')
{
/* --option */
#if defined _LIBC && defined USE_IN_LIBIO
@ -756,12 +635,13 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("\
%s: option `%c%s' doesn't allow an argument\n"),
argv[0], argv[optind - 1][0],
argv[0], argv[d->optind - 1][0],
pfound->name);
#else
fprintf (stderr, _("\
%s: option `%c%s' doesn't allow an argument\n"),
argv[0], argv[optind - 1][0], pfound->name);
argv[0], argv[d->optind - 1][0],
pfound->name);
#endif
}
@ -787,16 +667,16 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
#endif
}
nextchar += strlen (nextchar);
d->__nextchar += strlen (d->__nextchar);
optopt = pfound->val;
d->optopt = pfound->val;
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
if (d->optind < argc)
d->optarg = argv[d->optind++];
else
{
if (print_errors)
@ -806,7 +686,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
if (__asprintf (&buf, _("\
%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]) >= 0)
argv[0], argv[d->optind - 1]) >= 0)
{
_IO_flockfile (stderr);
@ -827,15 +707,15 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
#else
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
argv[0], argv[d->optind - 1]);
#endif
}
nextchar += strlen (nextchar);
optopt = pfound->val;
d->__nextchar += strlen (d->__nextchar);
d->optopt = pfound->val;
return optstring[0] == ':' ? ':' : '?';
}
}
nextchar += strlen (nextchar);
d->__nextchar += strlen (d->__nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
@ -850,8 +730,8 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
or the option starts with '--' or is not a valid short
option, then it's an error.
Otherwise interpret it as a short option. */
if (!long_only || argv[optind][1] == '-'
|| my_index (optstring, *nextchar) == NULL)
if (!long_only || argv[d->optind][1] == '-'
|| strchr (optstring, *d->__nextchar) == NULL)
{
if (print_errors)
{
@ -860,15 +740,15 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int n;
#endif
if (argv[optind][1] == '-')
if (argv[d->optind][1] == '-')
{
/* --option */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("%s: unrecognized option `--%s'\n"),
argv[0], nextchar);
argv[0], d->__nextchar);
#else
fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
argv[0], nextchar);
argv[0], d->__nextchar);
#endif
}
else
@ -876,10 +756,10 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
/* +option or -option */
#if defined _LIBC && defined USE_IN_LIBIO
n = __asprintf (&buf, _("%s: unrecognized option `%c%s'\n"),
argv[0], argv[optind][0], nextchar);
argv[0], argv[d->optind][0], d->__nextchar);
#else
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
argv[0], argv[optind][0], nextchar);
argv[0], argv[d->optind][0], d->__nextchar);
#endif
}
@ -903,9 +783,9 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
#endif
}
nextchar = (char *) "";
optind++;
optopt = 0;
d->__nextchar = (char *) "";
d->optind++;
d->optopt = 0;
return '?';
}
}
@ -913,12 +793,12 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
/* Look at and handle the next short option-character. */
{
char c = *nextchar++;
char *temp = my_index (optstring, c);
char c = *d->__nextchar++;
char *temp = strchr (optstring, c);
/* Increment `optind' when we start to process its last character. */
if (*nextchar == '\0')
++optind;
if (*d->__nextchar == '\0')
++d->optind;
if (temp == NULL || c == ':')
{
@ -929,7 +809,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int n;
#endif
if (posixly_correct)
if (d->__posixly_correct)
{
/* 1003.2 specifies the format of this message. */
#if defined _LIBC && defined USE_IN_LIBIO
@ -969,7 +849,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
#endif
}
optopt = c;
d->optopt = c;
return '?';
}
/* Convenience. Treat POSIX -W foo same as long option --foo */
@ -984,14 +864,14 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
int option_index;
/* This is an option that requires an argument. */
if (*nextchar != '\0')
if (*d->__nextchar != '\0')
{
optarg = nextchar;
d->optarg = d->__nextchar;
/* If we end this ARGV-element by taking the rest as an arg,
we must advance to the next element now. */
optind++;
d->optind++;
}
else if (optind == argc)
else if (d->optind == argc)
{
if (print_errors)
{
@ -1023,7 +903,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
argv[0], c);
#endif
}
optopt = c;
d->optopt = c;
if (optstring[0] == ':')
c = ':';
else
@ -1031,22 +911,23 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
return c;
}
else
/* We already incremented `optind' once;
/* We already incremented `d->optind' once;
increment it again when taking next ARGV-elt as argument. */
optarg = argv[optind++];
d->optarg = argv[d->optind++];
/* optarg is now the argument, see if it's in the
table of longopts. */
for (nextchar = nameend = optarg; *nameend && *nameend != '='; nameend++)
for (d->__nextchar = nameend = d->optarg; *nameend && *nameend != '=';
nameend++)
/* Do nothing. */ ;
/* Test all long options for either exact match
or abbreviated matches. */
for (p = longopts, option_index = 0; p->name; p++, option_index++)
if (!strncmp (p->name, nextchar, nameend - nextchar))
if (!strncmp (p->name, d->__nextchar, nameend - d->__nextchar))
{
if ((unsigned int) (nameend - nextchar) == strlen (p->name))
if ((unsigned int) (nameend - d->__nextchar) == strlen (p->name))
{
/* Exact match found. */
pfound = p;
@ -1072,7 +953,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
char *buf;
if (__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]) >= 0)
argv[0], argv[d->optind]) >= 0)
{
_IO_flockfile (stderr);
@ -1091,11 +972,11 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
#else
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
argv[0], argv[optind]);
argv[0], argv[d->optind]);
#endif
}
nextchar += strlen (nextchar);
optind++;
d->__nextchar += strlen (d->__nextchar);
d->optind++;
return '?';
}
if (pfound != NULL)
@ -1106,7 +987,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
/* Don't test has_arg with >, because some C compilers don't
allow it to be used on enums. */
if (pfound->has_arg)
optarg = nameend + 1;
d->optarg = nameend + 1;
else
{
if (print_errors)
@ -1141,14 +1022,14 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
#endif
}
nextchar += strlen (nextchar);
d->__nextchar += strlen (d->__nextchar);
return '?';
}
}
else if (pfound->has_arg == 1)
{
if (optind < argc)
optarg = argv[optind++];
if (d->optind < argc)
d->optarg = argv[d->optind++];
else
{
if (print_errors)
@ -1158,7 +1039,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
if (__asprintf (&buf, _("\
%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]) >= 0)
argv[0], argv[d->optind - 1]) >= 0)
{
_IO_flockfile (stderr);
@ -1179,14 +1060,14 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
#else
fprintf (stderr,
_("%s: option `%s' requires an argument\n"),
argv[0], argv[optind - 1]);
argv[0], argv[d->optind - 1]);
#endif
}
nextchar += strlen (nextchar);
d->__nextchar += strlen (d->__nextchar);
return optstring[0] == ':' ? ':' : '?';
}
}
nextchar += strlen (nextchar);
d->__nextchar += strlen (d->__nextchar);
if (longind != NULL)
*longind = option_index;
if (pfound->flag)
@ -1196,7 +1077,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
return pfound->val;
}
nextchar = NULL;
d->__nextchar = NULL;
return 'W'; /* Let the application handle it. */
}
if (temp[1] == ':')
@ -1204,26 +1085,26 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
if (temp[2] == ':')
{
/* This is an option that accepts an argument optionally. */
if (*nextchar != '\0')
if (*d->__nextchar != '\0')
{
optarg = nextchar;
optind++;
d->optarg = d->__nextchar;
d->optind++;
}
else
optarg = NULL;
nextchar = NULL;
d->optarg = NULL;
d->__nextchar = NULL;
}
else
{
/* This is an option that requires an argument. */
if (*nextchar != '\0')
if (*d->__nextchar != '\0')
{
optarg = nextchar;
d->optarg = d->__nextchar;
/* If we end this ARGV-element by taking the rest as an arg,
we must advance to the next element now. */
optind++;
d->optind++;
}
else if (optind == argc)
else if (d->optind == argc)
{
if (print_errors)
{
@ -1256,7 +1137,7 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
argv[0], c);
#endif
}
optopt = c;
d->optopt = c;
if (optstring[0] == ':')
c = ':';
else
@ -1265,8 +1146,8 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
else
/* We already incremented `optind' once;
increment it again when taking next ARGV-elt as argument. */
optarg = argv[optind++];
nextchar = NULL;
d->optarg = argv[d->optind++];
d->__nextchar = NULL;
}
}
return c;
@ -1274,10 +1155,26 @@ _getopt_internal (argc, argv, optstring, longopts, longind, long_only)
}
int
getopt (argc, argv, optstring)
int argc;
char *const *argv;
const char *optstring;
_getopt_internal (int argc, char *const *argv, const char *optstring,
const struct option *longopts, int *longind, int long_only)
{
int result;
getopt_data.optind = optind;
getopt_data.opterr = opterr;
result = _getopt_internal_r (argc, argv, optstring, longopts,
longind, long_only, &getopt_data);
optind = getopt_data.optind;
optarg = getopt_data.optarg;
optopt = getopt_data.optopt;
return result;
}
int
getopt (int argc, char *const *argv, const char *optstring)
{
return _getopt_internal (argc, argv, optstring,
(const struct option *) 0,
@ -1293,9 +1190,7 @@ getopt (argc, argv, optstring)
the above definition of `getopt'. */
int
main (argc, argv)
int argc;
char **argv;
main (int argc, char **argv)
{
int c;
int digit_optind = 0;

29
posix/getopt.h
View File

@ -105,11 +105,7 @@ extern int optopt;
struct option
{
# if (defined __STDC__ && __STDC__) || defined __cplusplus
const char *name;
# else
char *name;
# endif
/* 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;
@ -149,18 +145,17 @@ struct option
arguments to the option '\0'. This behavior is specific to the GNU
`getopt'. */
#if (defined __STDC__ && __STDC__) || defined __cplusplus
# ifdef __GNU_LIBRARY__
#ifdef __GNU_LIBRARY__
/* Many other libraries have conflicting prototypes for getopt, with
differences in the consts, in stdlib.h. To avoid compilation
errors, only prototype getopt for the GNU C library. */
extern int getopt (int ___argc, char *const *___argv, const char *__shortopts)
__THROW;
# else /* not __GNU_LIBRARY__ */
#else /* not __GNU_LIBRARY__ */
extern int getopt ();
# endif /* __GNU_LIBRARY__ */
#endif /* __GNU_LIBRARY__ */
# ifndef __need_getopt
#ifndef __need_getopt
extern int getopt_long (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind)
@ -170,21 +165,7 @@ extern int getopt_long_only (int ___argc, char *const *___argv,
const struct option *__longopts, int *__longind)
__THROW;
/* Internal only. Users should not call this directly. */
extern int _getopt_internal (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
int __long_only);
# endif
#else /* not __STDC__ */
extern int getopt ();
# ifndef __need_getopt
extern int getopt_long ();
extern int getopt_long_only ();
extern int _getopt_internal ();
# endif
#endif /* __STDC__ */
#endif
#ifdef __cplusplus
}

52
posix/getopt1.c
View File

@ -1,5 +1,5 @@
/* getopt_long and getopt_long_only entry points for GNU getopt.
Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -27,14 +27,7 @@
#else
# include "getopt.h"
#endif
#if !defined __STDC__ || !__STDC__
/* This is a separate conditional since some stdc systems
reject `defined (const)'. */
#ifndef const
#define const
#endif
#endif
#include "getopt_int.h"
#include <stdio.h>
@ -68,36 +61,41 @@
#endif
int
getopt_long (argc, argv, options, long_options, opt_index)
int argc;
char *const *argv;
const char *options;
const struct option *long_options;
int *opt_index;
getopt_long (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index)
{
return _getopt_internal (argc, argv, options, long_options, opt_index, 0);
}
int
_getopt_long_r (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index,
struct _getopt_data *d)
{
return _getopt_internal_r (argc, argv, options, long_options, opt_index,
0, d);
}
/* Like getopt_long, but '-' as well as '--' can indicate a long option.
If an option that starts with '-' (not '--') doesn't match a long option,
but does match a short option, it is parsed as a short option
instead. */
int
getopt_long_only (argc, argv, options, long_options, opt_index)
int argc;
char *const *argv;
const char *options;
const struct option *long_options;
int *opt_index;
getopt_long_only (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index)
{
return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
}
# ifdef _LIBC
libc_hidden_def (getopt_long)
libc_hidden_def (getopt_long_only)
# endif
int
_getopt_long_only_r (int argc, char *const *argv, const char *options,
const struct option *long_options, int *opt_index,
struct _getopt_data *d)
{
return _getopt_internal_r (argc, argv, options, long_options, opt_index,
1, d);
}
#endif /* Not ELIDE_CODE. */
@ -106,9 +104,7 @@ libc_hidden_def (getopt_long_only)
#include <stdio.h>
int
main (argc, argv)
int argc;
char **argv;
main (int argc, char **argv)
{
int c;
int digit_optind = 0;

130
posix/getopt_int.h Normal file
View File

@ -0,0 +1,130 @@
/* Internal declarations for getopt.
Copyright (C) 1989-1994,1996-1999,2001,2003,2004
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#ifndef _GETOPT_INT_H
#define _GETOPT_INT_H 1
extern int _getopt_internal (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
int __long_only);
/* Reentrant versions which can handle parsing multiple argument
vectors at the same time. */
/* Data type for reentrant functions. */
struct _getopt_data
{
/* These have exactly the same meaning as the corresponding global
variables, except that they are used for the reentrant
versions of getopt. */
int optind;
int opterr;
int optopt;
char *optarg;
/* Internal members. */
/* True if the internal members have been initialized. */
int __initialized;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
This allows us to pick up the scan where we left off.
If this is zero, or a null string, it means resume the scan
by advancing to the next ARGV-element. */
char *__nextchar;
/* Describe how to deal with options that follow non-option ARGV-elements.
If the caller did not specify anything,
the default is REQUIRE_ORDER if the environment variable
POSIXLY_CORRECT is defined, PERMUTE otherwise.
REQUIRE_ORDER means don't recognize them as options;
stop option processing when the first non-option is seen.
This is what Unix does.
This mode of operation is selected by either setting the environment
variable POSIXLY_CORRECT, or using `+' as the first character
of the list of option characters.
PERMUTE is the default. We permute the contents of ARGV as we
scan, so that eventually all the non-options are at the end.
This allows options to be given in any order, even with programs
that were not written to expect this.
RETURN_IN_ORDER is an option available to programs that were
written to expect options and other ARGV-elements in any order
and that care about the ordering of the two. We describe each
non-option ARGV-element as if it were the argument of an option
with character code 1. Using `-' as the first character of the
list of option characters selects this mode of operation.
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} __ordering;
/* If the POSIXLY_CORRECT environment variable is set. */
int __posixly_correct;
/* Handle permutation of arguments. */
/* Describe the part of ARGV that contains non-options that have
been skipped. `first_nonopt' is the index in ARGV of the first
of them; `last_nonopt' is the index after the last of them. */
int __first_nonopt;
int __last_nonopt;
#if defined _LIBC && defined USE_NONOPTION_FLAGS
int __nonoption_flags_max_len;
int __nonoption_flags_len;
# endif
};
/* The initializer is necessary to set OPTIND and OPTERR to their
default values and to clear the initialization flag. */
#define _GETOPT_DATA_INITIALIZER { 1, 1 }
extern int _getopt_internal_r (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
int __long_only, struct _getopt_data *__data);
extern int _getopt_long_r (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts, int *__longind,
struct _getopt_data *__data);
extern int _getopt_long_only_r (int ___argc, char *const *___argv,
const char *__shortopts,
const struct option *__longopts,
int *__longind,
struct _getopt_data *__data);
#endif /* getopt_int.h */