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"Port of GNU getopt() to Win32 for anyone who's tired of dealing with getopt() calls in Unix-to-Windows ports." Ported by Pete Wilson. Recovered from the Internet Archive's snapshot of www.pwilson.net/sample.html.
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/* Getopt for GNU. | |
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 | |
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. */ | |
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>. | |
Ditto for AIX 3.2 and <stdlib.h>. */ | |
#ifndef _NO_PROTO | |
# define _NO_PROTO | |
#endif | |
#ifdef HAVE_CONFIG_H | |
# 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 | |
actually compiling the library itself. This code is part of the GNU C | |
Library, but also included in many other GNU distributions. Compiling | |
and linking in this code is a waste when using the GNU C library | |
(especially if it is a shared library). Rather than having every GNU | |
program understand `configure --with-gnu-libc' and omit the object files, | |
it is simpler to just do this in the source for each such file. */ | |
#define GETOPT_INTERFACE_VERSION 2 | |
#if !defined _LIBC && defined __GLIBC__ && __GLIBC__ >= 2 | |
# include <gnu-versions.h> | |
# if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION | |
# define ELIDE_CODE | |
# endif | |
#endif | |
#ifndef ELIDE_CODE | |
/* This needs to come after some library #include | |
to get __GNU_LIBRARY__ defined. */ | |
#ifdef __GNU_LIBRARY__ | |
/* Don't include stdlib.h for non-GNU C libraries because some of them | |
contain conflicting prototypes for getopt. */ | |
# include <stdlib.h> | |
# include <unistd.h> | |
#endif /* GNU C library. */ | |
#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 | |
#endif | |
/* This version of `getopt' appears to the caller like standard Unix `getopt' | |
but it behaves differently for the user, since it allows the user | |
to intersperse the options with the other arguments. | |
As `getopt' works, it permutes the elements of ARGV so that, | |
when it is done, all the options precede everything else. Thus | |
all application programs are extended to handle flexible argument order. | |
Setting the environment variable POSIXLY_CORRECT disables permutation. | |
Then the behavior is completely standard. | |
GNU application programs can use a third alternative mode in which | |
they can distinguish the relative order of options and other arguments. */ | |
#include "getopt.h" | |
/* 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. */ | |
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. */ | |
/* 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; | |
/* 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. */ | |
int opterr = 1; | |
/* Set to an option character which was unrecognized. | |
This must be initialized on some systems to avoid linking in the | |
system's own getopt implementation. */ | |
int optopt = '?'; | |
/* 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. */ | |
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 || WIN32 /* Pete Wilson mod 7/28/02 */ | |
# include <string.h> | |
# else | |
# include <strings.h> | |
# endif | |
/* Avoid depending on library functions or files | |
whose names are inconsistent. */ | |
#ifndef getenv | |
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 | |
that we can compare them later. But we must not use malloc(3). */ | |
extern int __libc_argc; | |
extern char **__libc_argv; | |
/* Bash 2.0 gives us an environment variable containing flags | |
indicating ARGV elements that should not be considered arguments. */ | |
# 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) \ | |
{ \ | |
char __tmp = __getopt_nonoption_flags[ch1]; \ | |
__getopt_nonoption_flags[ch1] = __getopt_nonoption_flags[ch2]; \ | |
__getopt_nonoption_flags[ch2] = __tmp; \ | |
} | |
# else | |
# define SWAP_FLAGS(ch1, ch2) | |
# endif | |
#else /* !_LIBC */ | |
# define SWAP_FLAGS(ch1, ch2) | |
#endif /* _LIBC */ | |
/* Exchange two adjacent subsequences of ARGV. | |
One subsequence is elements [first_nonopt,last_nonopt) | |
which contains all the non-options that have been skipped so far. | |
The other is elements [last_nonopt,optind), which contains all | |
the options processed since those non-options were skipped. | |
`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; | |
{ | |
int bottom = first_nonopt; | |
int middle = last_nonopt; | |
int top = optind; | |
char *tem; | |
/* Exchange the shorter segment with the far end of the longer segment. | |
That puts the shorter segment into the right place. | |
It leaves the longer segment in the right place overall, | |
but it consists of two parts that need to be swapped next. */ | |
#if defined _LIBC && defined USE_NONOPTION_FLAGS | |
/* 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) | |
{ | |
/* 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; | |
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; | |
__getopt_nonoption_flags = new_str; | |
} | |
} | |
#endif | |
while (top > middle && middle > bottom) | |
{ | |
if (top - middle > middle - bottom) | |
{ | |
/* Bottom segment is the short one. */ | |
int len = middle - bottom; | |
register int i; | |
/* Swap it with the top part of the top segment. */ | |
for (i = 0; i < len; i++) | |
{ | |
tem = argv[bottom + i]; | |
argv[bottom + i] = argv[top - (middle - bottom) + i]; | |
argv[top - (middle - bottom) + i] = tem; | |
SWAP_FLAGS (bottom + i, top - (middle - bottom) + i); | |
} | |
/* Exclude the moved bottom segment from further swapping. */ | |
top -= len; | |
} | |
else | |
{ | |
/* Top segment is the short one. */ | |
int len = top - middle; | |
register int i; | |
/* Swap it with the bottom part of the bottom segment. */ | |
for (i = 0; i < len; i++) | |
{ | |
tem = argv[bottom + i]; | |
argv[bottom + i] = argv[middle + i]; | |
argv[middle + i] = tem; | |
SWAP_FLAGS (bottom + i, middle + i); | |
} | |
/* Exclude the moved top segment from further swapping. */ | |
bottom += len; | |
} | |
} | |
/* Update records for the slots the non-options now occupy. */ | |
first_nonopt += (optind - last_nonopt); | |
last_nonopt = 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; | |
{ | |
/* 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; | |
nextchar = NULL; | |
posixly_correct = getenv ("POSIXLY_CORRECT"); | |
/* Determine how to handle the ordering of options and nonoptions. */ | |
if (optstring[0] == '-') | |
{ | |
ordering = RETURN_IN_ORDER; | |
++optstring; | |
} | |
else if (optstring[0] == '+') | |
{ | |
ordering = REQUIRE_ORDER; | |
++optstring; | |
} | |
else if (posixly_correct != NULL) | |
ordering = REQUIRE_ORDER; | |
else | |
ordering = PERMUTE; | |
#if defined _LIBC && defined USE_NONOPTION_FLAGS | |
if (posixly_correct == NULL | |
&& argc == __libc_argc && argv == __libc_argv) | |
{ | |
if (nonoption_flags_max_len == 0) | |
{ | |
if (__getopt_nonoption_flags == NULL | |
|| __getopt_nonoption_flags[0] == '\0') | |
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; | |
__getopt_nonoption_flags = | |
(char *) malloc (nonoption_flags_max_len); | |
if (__getopt_nonoption_flags == NULL) | |
nonoption_flags_max_len = -1; | |
else | |
memset (__mempcpy (__getopt_nonoption_flags, orig_str, len), | |
'\0', nonoption_flags_max_len - len); | |
} | |
} | |
nonoption_flags_len = nonoption_flags_max_len; | |
} | |
else | |
nonoption_flags_len = 0; | |
#endif | |
return optstring; | |
} | |
/* Scan elements of ARGV (whose length is ARGC) for option characters | |
given in OPTSTRING. | |
If an element of ARGV starts with '-', and is not exactly "-" or "--", | |
then it is an option element. The characters of this element | |
(aside from the initial '-') are option characters. If `getopt' | |
is called repeatedly, it returns successively each of the option characters | |
from each of the option elements. | |
If `getopt' finds another option character, it returns that character, | |
updating `optind' and `nextchar' so that the next call to `getopt' can | |
resume the scan with the following option character or ARGV-element. | |
If there are no more option characters, `getopt' returns -1. | |
Then `optind' is the index in ARGV of the first ARGV-element | |
that is not an option. (The ARGV-elements have been permuted | |
so that those that are not options now come last.) | |
OPTSTRING is a string containing the legitimate option characters. | |
If an option character is seen that is not listed in OPTSTRING, | |
return '?' after printing an error message. If you set `opterr' to | |
zero, the error message is suppressed but we still return '?'. | |
If a char in OPTSTRING is followed by a colon, that means it wants an arg, | |
so the following text in the same ARGV-element, or the text of the following | |
ARGV-element, is returned in `optarg'. Two colons mean an option that | |
wants an optional arg; if there is text in the current ARGV-element, | |
it is returned in `optarg', otherwise `optarg' is set to zero. | |
If OPTSTRING starts with `-' or `+', it requests different methods of | |
handling the non-option ARGV-elements. | |
See the comments about RETURN_IN_ORDER and REQUIRE_ORDER, above. | |
Long-named options begin with `--' instead of `-'. | |
Their names may be abbreviated as long as the abbreviation is unique | |
or is an exact match for some defined option. If they have an | |
argument, it follows the option name in the same ARGV-element, separated | |
from the option name by a `=', or else the in next ARGV-element. | |
When `getopt' finds a long-named option, it returns 0 if that option's | |
`flag' field is nonzero, the value of the option's `val' field | |
if the `flag' field is zero. | |
The elements of ARGV aren't really const, because we permute them. | |
But we pretend they're const in the prototype to be compatible | |
with other systems. | |
LONGOPTS is a vector of `struct option' terminated by an | |
element containing a name which is zero. | |
LONGIND returns the index in LONGOPT of the long-named option found. | |
It is only valid when a long-named option has been found by the most | |
recent call. | |
If LONG_ONLY is nonzero, '-' as well as '--' can introduce | |
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; | |
{ | |
int print_errors = opterr; | |
if (optstring[0] == ':') | |
print_errors = 0; | |
if (argc < 1) | |
return -1; | |
optarg = NULL; | |
if (optind == 0 || !__getopt_initialized) | |
{ | |
if (optind == 0) | |
optind = 1; /* Don't scan ARGV[0], the program name. */ | |
optstring = _getopt_initialize (argc, argv, optstring); | |
__getopt_initialized = 1; | |
} | |
/* Test whether ARGV[optind] points to a non-option argument. | |
Either it does not have option syntax, or there is an environment flag | |
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')) | |
#else | |
# define NONOPTION_P (argv[optind][0] != '-' || argv[optind][1] == '\0') | |
#endif | |
if (nextchar == NULL || *nextchar == '\0') | |
{ | |
/* Advance to the next ARGV-element. */ | |
/* Give FIRST_NONOPT and 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 (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; | |
/* Skip any additional non-options | |
and extend the range of non-options previously skipped. */ | |
while (optind < argc && NONOPTION_P) | |
optind++; | |
last_nonopt = optind; | |
} | |
/* The special ARGV-element `--' means premature end of options. | |
Skip it like a null option, | |
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], "--")) | |
{ | |
optind++; | |
if (first_nonopt != last_nonopt && last_nonopt != optind) | |
exchange ((char **) argv); | |
else if (first_nonopt == last_nonopt) | |
first_nonopt = optind; | |
last_nonopt = argc; | |
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) | |
{ | |
/* 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; | |
return -1; | |
} | |
/* If we have come to a non-option and did not permute it, | |
either stop the scan or describe it to the caller and pass it by. */ | |
if (NONOPTION_P) | |
{ | |
if (ordering == REQUIRE_ORDER) | |
return -1; | |
optarg = argv[optind++]; | |
return 1; | |
} | |
/* We have found another option-ARGV-element. | |
Skip the initial punctuation. */ | |
nextchar = (argv[optind] + 1 | |
+ (longopts != NULL && argv[optind][1] == '-')); | |
} | |
/* Decode the current option-ARGV-element. */ | |
/* Check whether the ARGV-element is a long option. | |
If long_only and the ARGV-element has the form "-f", where f is | |
a valid short option, don't consider it an abbreviated form of | |
a long option that starts with f. Otherwise there would be no | |
way to give the -f short option. | |
On the other hand, if there's a long option "fubar" and | |
the ARGV-element is "-fu", do consider that an abbreviation of | |
the long option, just like "--fu", and not "-f" with arg "u". | |
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]))))) | |
{ | |
char *nameend; | |
const struct option *p; | |
const struct option *pfound = NULL; | |
int exact = 0; | |
int ambig = 0; | |
int indfound = -1; | |
int option_index; | |
for (nameend = 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 ((unsigned int) (nameend - nextchar) | |
== (unsigned int) strlen (p->name)) | |
{ | |
/* Exact match found. */ | |
pfound = p; | |
indfound = option_index; | |
exact = 1; | |
break; | |
} | |
else if (pfound == NULL) | |
{ | |
/* First nonexact match found. */ | |
pfound = p; | |
indfound = option_index; | |
} | |
else if (long_only | |
|| pfound->has_arg != p->has_arg | |
|| pfound->flag != p->flag | |
|| pfound->val != p->val) | |
/* Second or later nonexact match found. */ | |
ambig = 1; | |
} | |
if (ambig && !exact) | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, _("%s: option `%s' is ambiguous\n"), | |
argv[0], argv[optind]); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, _("%s: option `%s' is ambiguous\n"), | |
argv[0], argv[optind]); | |
#endif | |
} | |
nextchar += strlen (nextchar); | |
optind++; | |
optopt = 0; | |
return '?'; | |
} | |
if (pfound != NULL) | |
{ | |
option_index = indfound; | |
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; | |
else | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
#endif | |
if (argv[optind - 1][1] == '-') | |
{ | |
/* --option */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
__asprintf (&buf, _("\ | |
%s: option `--%s' doesn't allow an argument\n"), | |
argv[0], pfound->name); | |
#else | |
fprintf (stderr, _("\ | |
%s: option `--%s' doesn't allow an argument\n"), | |
argv[0], pfound->name); | |
#endif | |
} | |
else | |
{ | |
/* +option or -option */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
__asprintf (&buf, _("\ | |
%s: option `%c%s' doesn't allow an argument\n"), | |
argv[0], argv[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); | |
#endif | |
} | |
#if defined _LIBC && defined USE_IN_LIBIO | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#endif | |
} | |
nextchar += strlen (nextchar); | |
optopt = pfound->val; | |
return '?'; | |
} | |
} | |
else if (pfound->has_arg == 1) | |
{ | |
if (optind < argc) | |
optarg = argv[optind++]; | |
else | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, | |
_("%s: option `%s' requires an argument\n"), | |
argv[0], argv[optind - 1]); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, | |
_("%s: option `%s' requires an argument\n"), | |
argv[0], argv[optind - 1]); | |
#endif | |
} | |
nextchar += strlen (nextchar); | |
optopt = pfound->val; | |
return optstring[0] == ':' ? ':' : '?'; | |
} | |
} | |
nextchar += strlen (nextchar); | |
if (longind != NULL) | |
*longind = option_index; | |
if (pfound->flag) | |
{ | |
*(pfound->flag) = pfound->val; | |
return 0; | |
} | |
return pfound->val; | |
} | |
/* Can't find it as a long option. If this is not getopt_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 (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
#endif | |
if (argv[optind][1] == '-') | |
{ | |
/* --option */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
__asprintf (&buf, _("%s: unrecognized option `--%s'\n"), | |
argv[0], nextchar); | |
#else | |
fprintf (stderr, _("%s: unrecognized option `--%s'\n"), | |
argv[0], nextchar); | |
#endif | |
} | |
else | |
{ | |
/* +option or -option */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
__asprintf (&buf, _("%s: unrecognized option `%c%s'\n"), | |
argv[0], argv[optind][0], nextchar); | |
#else | |
fprintf (stderr, _("%s: unrecognized option `%c%s'\n"), | |
argv[0], argv[optind][0], nextchar); | |
#endif | |
} | |
#if defined _LIBC && defined USE_IN_LIBIO | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#endif | |
} | |
nextchar = (char *) ""; | |
optind++; | |
optopt = 0; | |
return '?'; | |
} | |
} | |
/* Look at and handle the next short option-character. */ | |
{ | |
char c = *nextchar++; | |
char *temp = my_index (optstring, c); | |
/* Increment `optind' when we start to process its last character. */ | |
if (*nextchar == '\0') | |
++optind; | |
if (temp == NULL || c == ':') | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
#endif | |
if (posixly_correct) | |
{ | |
/* 1003.2 specifies the format of this message. */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
__asprintf (&buf, _("%s: illegal option -- %c\n"), | |
argv[0], c); | |
#else | |
fprintf (stderr, _("%s: illegal option -- %c\n"), argv[0], c); | |
#endif | |
} | |
else | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
__asprintf (&buf, _("%s: invalid option -- %c\n"), | |
argv[0], c); | |
#else | |
fprintf (stderr, _("%s: invalid option -- %c\n"), argv[0], c); | |
#endif | |
} | |
#if defined _LIBC && defined USE_IN_LIBIO | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#endif | |
} | |
optopt = c; | |
return '?'; | |
} | |
/* Convenience. Treat POSIX -W foo same as long option --foo */ | |
if (temp[0] == 'W' && temp[1] == ';') | |
{ | |
char *nameend; | |
const struct option *p; | |
const struct option *pfound = NULL; | |
int exact = 0; | |
int ambig = 0; | |
int indfound = 0; | |
int option_index; | |
/* This is an option that requires an argument. */ | |
if (*nextchar != '\0') | |
{ | |
optarg = nextchar; | |
/* If we end this ARGV-element by taking the rest as an arg, | |
we must advance to the next element now. */ | |
optind++; | |
} | |
else if (optind == argc) | |
{ | |
if (print_errors) | |
{ | |
/* 1003.2 specifies the format of this message. */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, _("%s: option requires an argument -- %c\n"), | |
argv[0], c); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, _("%s: option requires an argument -- %c\n"), | |
argv[0], c); | |
#endif | |
} | |
optopt = c; | |
if (optstring[0] == ':') | |
c = ':'; | |
else | |
c = '?'; | |
return c; | |
} | |
else | |
/* We already incremented `optind' once; | |
increment it again when taking next ARGV-elt as argument. */ | |
optarg = argv[optind++]; | |
/* optarg is now the argument, see if it's in the | |
table of longopts. */ | |
for (nextchar = nameend = 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 ((unsigned int) (nameend - nextchar) == strlen (p->name)) | |
{ | |
/* Exact match found. */ | |
pfound = p; | |
indfound = option_index; | |
exact = 1; | |
break; | |
} | |
else if (pfound == NULL) | |
{ | |
/* First nonexact match found. */ | |
pfound = p; | |
indfound = option_index; | |
} | |
else | |
/* Second or later nonexact match found. */ | |
ambig = 1; | |
} | |
if (ambig && !exact) | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, _("%s: option `-W %s' is ambiguous\n"), | |
argv[0], argv[optind]); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"), | |
argv[0], argv[optind]); | |
#endif | |
} | |
nextchar += strlen (nextchar); | |
optind++; | |
return '?'; | |
} | |
if (pfound != NULL) | |
{ | |
option_index = indfound; | |
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; | |
else | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, _("\ | |
%s: option `-W %s' doesn't allow an argument\n"), | |
argv[0], pfound->name); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, _("\ | |
%s: option `-W %s' doesn't allow an argument\n"), | |
argv[0], pfound->name); | |
#endif | |
} | |
nextchar += strlen (nextchar); | |
return '?'; | |
} | |
} | |
else if (pfound->has_arg == 1) | |
{ | |
if (optind < argc) | |
optarg = argv[optind++]; | |
else | |
{ | |
if (print_errors) | |
{ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, _("\ | |
%s: option `%s' requires an argument\n"), | |
argv[0], argv[optind - 1]); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, | |
_("%s: option `%s' requires an argument\n"), | |
argv[0], argv[optind - 1]); | |
#endif | |
} | |
nextchar += strlen (nextchar); | |
return optstring[0] == ':' ? ':' : '?'; | |
} | |
} | |
nextchar += strlen (nextchar); | |
if (longind != NULL) | |
*longind = option_index; | |
if (pfound->flag) | |
{ | |
*(pfound->flag) = pfound->val; | |
return 0; | |
} | |
return pfound->val; | |
} | |
nextchar = NULL; | |
return 'W'; /* Let the application handle it. */ | |
} | |
if (temp[1] == ':') | |
{ | |
if (temp[2] == ':') | |
{ | |
/* This is an option that accepts an argument optionally. */ | |
if (*nextchar != '\0') | |
{ | |
optarg = nextchar; | |
optind++; | |
} | |
else | |
optarg = NULL; | |
nextchar = NULL; | |
} | |
else | |
{ | |
/* This is an option that requires an argument. */ | |
if (*nextchar != '\0') | |
{ | |
optarg = nextchar; | |
/* If we end this ARGV-element by taking the rest as an arg, | |
we must advance to the next element now. */ | |
optind++; | |
} | |
else if (optind == argc) | |
{ | |
if (print_errors) | |
{ | |
/* 1003.2 specifies the format of this message. */ | |
#if defined _LIBC && defined USE_IN_LIBIO | |
char *buf; | |
__asprintf (&buf, | |
_("%s: option requires an argument -- %c\n"), | |
argv[0], c); | |
if (_IO_fwide (stderr, 0) > 0) | |
__fwprintf (stderr, L"%s", buf); | |
else | |
fputs (buf, stderr); | |
free (buf); | |
#else | |
fprintf (stderr, | |
_("%s: option requires an argument -- %c\n"), | |
argv[0], c); | |
#endif | |
} | |
optopt = c; | |
if (optstring[0] == ':') | |
c = ':'; | |
else | |
c = '?'; | |
} | |
else | |
/* We already incremented `optind' once; | |
increment it again when taking next ARGV-elt as argument. */ | |
optarg = argv[optind++]; | |
nextchar = NULL; | |
} | |
} | |
return c; | |
} | |
} | |
int | |
getopt (argc, argv, optstring) | |
int argc; | |
char *const *argv; | |
const char *optstring; | |
{ | |
return _getopt_internal (argc, argv, optstring, | |
(const struct option *) 0, | |
(int *) 0, | |
0); | |
} | |
#endif /* Not ELIDE_CODE. */ | |
/* Compile with -DTEST to make an executable for use in testing | |
the above definition of `getopt'. */ | |
/* #define TEST */ /* Pete Wilson mod 7/28/02 */ | |
#ifdef TEST | |
#ifndef exit /* Pete Wilson mod 7/28/02 */ | |
int exit(int); /* Pete Wilson mod 7/28/02 */ | |
#endif /* Pete Wilson mod 7/28/02 */ | |
int | |
main (argc, argv) | |
int argc; | |
char **argv; | |
{ | |
int c; | |
int digit_optind = 0; | |
while (1) | |
{ | |
int this_option_optind = optind ? optind : 1; | |
c = getopt (argc, argv, "abc:d:0123456789"); | |
if (c == -1) | |
break; | |
switch (c) | |
{ | |
case '0': | |
case '1': | |
case '2': | |
case '3': | |
case '4': | |
case '5': | |
case '6': | |
case '7': | |
case '8': | |
case '9': | |
if (digit_optind != 0 && digit_optind != this_option_optind) | |
printf ("digits occur in two different argv-elements.\n"); | |
digit_optind = this_option_optind; | |
printf ("option %c\n", c); | |
break; | |
case 'a': | |
printf ("option a\n"); | |
break; | |
case 'b': | |
printf ("option b\n"); | |
break; | |
case 'c': | |
printf ("option c with value `%s'\n", optarg); | |
break; | |
case '?': | |
break; | |
default: | |
printf ("?? getopt returned character code 0%o ??\n", c); | |
} | |
} | |
if (optind < argc) | |
{ | |
printf ("non-option ARGV-elements: "); | |
while (optind < argc) | |
printf ("%s ", argv[optind++]); | |
printf ("\n"); | |
} | |
exit (0); | |
} | |
#endif /* TEST */ |
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/* getopt.h */ | |
/* Declarations for getopt. | |
Copyright (C) 1989-1994, 1996-1999, 2001 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_H | |
#ifndef __need_getopt | |
# define _GETOPT_H 1 | |
#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 | |
#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. */ | |
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; | |
int *flag; | |
int val; | |
}; | |
/* 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 '\0'. This behavior is specific to the GNU | |
`getopt'. */ | |
#if (defined __STDC__ && __STDC__) || defined __cplusplus | |
# 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); | |
# else /* not __GNU_LIBRARY__ */ | |
extern int getopt (); | |
# endif /* __GNU_LIBRARY__ */ | |
# ifndef __need_getopt | |
extern int getopt_long (int ___argc, char *const *___argv, | |
const char *__shortopts, | |
const struct option *__longopts, int *__longind); | |
extern int getopt_long_only (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 (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__ */ | |
#ifdef __cplusplus | |
} | |
#endif | |
/* Make sure we later can get all the definitions and declarations. */ | |
#undef __need_getopt | |
#endif /* getopt.h */ |
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