/* cgetopt.cc provide access to the C getopt library.
-Copyright (C) 2009-2022 Free Software Foundation, Inc.
+Copyright (C) 2009-2023 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
This file is part of GNU Modula-2.
#include <stdlib.h>
#include <getopt.h>
#include <m2rts.h>
+#include <stdio.h>
+#include <config.h>
#define EXPORT(FUNC) m2pim ## _cgetopt_ ## FUNC
#define M2EXPORT(FUNC) m2pim ## _M2_cgetopt_ ## FUNC
#define M2LIBNAME "m2pim"
+#if !defined(_)
+#define _(X) X
+#endif
+
extern "C" {char *EXPORT(optarg);}
extern "C" {int EXPORT(optind);}
extern "C" {int EXPORT(opterr);}
extern "C" {int EXPORT(optopt);}
-extern "C" char
-EXPORT(getopt) (int argc, char *argv[], char *optstring)
-{
- char r = getopt (argc, argv, optstring);
-
- EXPORT(optarg) = optarg;
- EXPORT(optind) = optind;
- EXPORT(opterr) = opterr;
- EXPORT(optopt) = optopt;
-
- if (r == (char)-1)
- return (char)0;
- return r;
-}
-
-extern "C" int
-EXPORT(getopt_long) (int argc, char *argv[], char *optstring,
- const struct option *longopts, int *longindex)
-{
- int r = getopt_long (argc, argv, optstring, longopts, longindex);
-
- EXPORT(optarg) = optarg;
- EXPORT(optind) = optind;
- EXPORT(opterr) = opterr;
- EXPORT(optopt) = optopt;
-
- return r;
-}
-
-extern "C" int
-EXPORT(getopt_long_only) (int argc, char *argv[], char *optstring,
- const struct option *longopts, int *longindex)
-{
- int r = getopt_long_only (argc, argv, optstring, longopts, longindex);
-
- EXPORT(optarg) = optarg;
- EXPORT(optind) = optind;
- EXPORT(opterr) = opterr;
- EXPORT(optopt) = optopt;
+int
+libiberty_getopt_long_only (int argc, char *const *argv, const char *options,
+ const struct option *long_options, int *opt_index);
+int
+libiberty_getopt_long (int argc, char *const *argv, const char *options,
+ const struct option *long_options, int *opt_index);
- return r;
-}
typedef struct cgetopt_Options_s
{
struct option *cinfo;
- unsigned int high;
+ unsigned int empty_slot;
} cgetopt_Options;
/* InitOptions a constructor for Options. */
{
cgetopt_Options *o = (cgetopt_Options *)malloc (sizeof (cgetopt_Options));
o->cinfo = (struct option *)malloc (sizeof (struct option));
- o->high = 0;
+ o->empty_slot = 1;
return o;
}
extern "C" void
EXPORT(SetOption) (cgetopt_Options *o, unsigned int index, char *name,
- bool has_arg, int *flag, int val)
+ int has_arg, int *flag, int val)
{
- if (index > o->high)
+ if (index >= o->empty_slot)
{
o->cinfo
- = (struct option *)malloc (sizeof (struct option) * (index + 1));
- o->high = index + 1;
+ = (struct option *)realloc (o->cinfo,
+ sizeof (struct option) * (index + 1));
+ o->empty_slot = index + 1;
}
o->cinfo[index].name = name;
o->cinfo[index].has_arg = has_arg;
+ /* Set flag to NULL if name is NULL, as flag comes from a VAR parameter
+ (which cannot be NIL in modula-2). */
+ if (name == NULL)
+ flag = NULL;
o->cinfo[index].flag = flag;
o->cinfo[index].val = val;
}
return o->cinfo;
}
+
+/* The following code has been taken from libiberty/getopt.c and is
+ conditionally compiled if long option support is absent on the target.
+ It has been changed just to deal with the long option functions as we
+ assume all targets have getopt. This code also keeps all data and code
+ static as the interface code only comes though functions defined in
+ cgetopt.def. */
+
+#if (! defined(HAVE_GETOPT_LONG_ONLY)) || (! defined(HAVE_GETOPT_LONG))
+/* 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. */
+
+static char *cgetopt_optarg = NULL;
+
+/* 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. */
+static int cgetopt_optind = 1;
+
+/* Formerly, initialization of getopt depended on optind==0, which
+ causes problems with re-calling getopt as programs generally don't
+ know that. */
+
+static int __getopt_initialized = 0;
+
+/* 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. */
+
+static int cgetopt_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. */
+
+static int cgetopt_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;
+\f
+#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
+# if HAVE_STRINGS_H
+# include <strings.h>
+# endif
+# endif
+
+/* Avoid depending on library functions or files
+ whose names are inconsistent. */
+
+#if HAVE_STDLIB_H && HAVE_DECL_GETENV
+# include <stdlib.h>
+#elif !defined(getenv)
+# ifdef __cplusplus
+extern "C" {
+# endif /* __cplusplus */
+extern char *getenv (const char *);
+# ifdef __cplusplus
+}
+# endif /* __cplusplus */
+#endif
+
+static char *
+my_index (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__ */
+\f
+/* 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
+/* Bash 2.0 gives us an environment variable containing flags
+ indicating ARGV elements that should not be considered arguments. */
+
+/* Defined in getopt_init.c */
+extern char *__getopt_nonoption_flags;
+
+static int nonoption_flags_max_len;
+static int nonoption_flags_len;
+
+static int original_argc;
+static char *const *original_argv;
+
+/* Make sure the environment variable bash 2.0 puts in the environment
+ is valid for the getopt call we must make sure that the ARGV passed
+ to getopt is that one passed to the process. */
+static void
+__attribute__ ((unused))
+store_args_and_env (int argc, char *const *argv)
+{
+ /* 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). */
+ original_argc = argc;
+ original_argv = argv;
+}
+# ifdef text_set_element
+text_set_element (__libc_subinit, store_args_and_env);
+# endif /* text_set_element */
+
+# 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 /* !_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 (char **argv)
+{
+ int bottom = first_nonopt;
+ int middle = last_nonopt;
+ int top = cgetopt_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. */
+
+#ifdef _LIBC
+ /* 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 = (char *) 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;
+ 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;
+ 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 += (cgetopt_optind - last_nonopt);
+ last_nonopt = cgetopt_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 (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 = cgetopt_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;
+
+#ifdef _LIBC
+ if (posixly_correct == NULL
+ && argc == original_argc && argv == original_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. */
+
+static
+int
+_getopt_internal (int argc, char *const *argv, const char *optstring,
+ const struct option *longopts,
+ int *longind, int long_only)
+{
+ cgetopt_optarg = NULL;
+
+ if (cgetopt_optind == 0 || !__getopt_initialized)
+ {
+ if (cgetopt_optind == 0)
+ cgetopt_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. */
+#ifdef _LIBC
+# define NONOPTION_P (argv[cgetopt_optind][0] != '-' || argv[cgetopt_optind][1] == '\0' \
+ || (cgetopt_optind < nonoption_flags_len \
+ && __getopt_nonoption_flags[cgetopt_optind] == '1'))
+#else
+# define NONOPTION_P (argv[cgetopt_optind][0] != '-' || argv[cgetopt_optind][1] == '\0')
+#endif
+
+ if (nextchar == NULL || *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 > cgetopt_optind)
+ last_nonopt = cgetopt_optind;
+ if (first_nonopt > cgetopt_optind)
+ first_nonopt = cgetopt_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 != cgetopt_optind)
+ exchange ((char **) argv);
+ else if (last_nonopt != cgetopt_optind)
+ first_nonopt = cgetopt_optind;
+
+ /* Skip any additional non-options
+ and extend the range of non-options previously skipped. */
+
+ while (cgetopt_optind < argc && NONOPTION_P)
+ cgetopt_optind++;
+ last_nonopt = cgetopt_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 (cgetopt_optind != argc && !strcmp (argv[cgetopt_optind], "--"))
+ {
+ cgetopt_optind++;
+
+ if (first_nonopt != last_nonopt && last_nonopt != cgetopt_optind)
+ exchange ((char **) argv);
+ else if (first_nonopt == last_nonopt)
+ first_nonopt = cgetopt_optind;
+ last_nonopt = argc;
+
+ cgetopt_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 (cgetopt_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)
+ cgetopt_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;
+ cgetopt_optarg = argv[cgetopt_optind++];
+ return 1;
+ }
+
+ /* We have found another option-ARGV-element.
+ Skip the initial punctuation. */
+
+ nextchar = (argv[cgetopt_optind] + 1
+ + (longopts != NULL && argv[cgetopt_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[cgetopt_optind][1] == '-'
+ || (long_only && (argv[cgetopt_optind][2] || !my_index (optstring, argv[cgetopt_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
+ /* Second or later nonexact match found. */
+ ambig = 1;
+ }
+
+ if (ambig && !exact)
+ {
+ if (cgetopt_opterr)
+ fprintf (stderr, _("%s: option `%s' is ambiguous\n"),
+ argv[0], argv[cgetopt_optind]);
+ nextchar += strlen (nextchar);
+ cgetopt_optind++;
+ cgetopt_optopt = 0;
+ return '?';
+ }
+
+ if (pfound != NULL)
+ {
+ option_index = indfound;
+ cgetopt_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)
+ cgetopt_optarg = nameend + 1;
+ else
+ {
+ if (cgetopt_opterr)
+ {
+ if (argv[cgetopt_optind - 1][1] == '-')
+ /* --option */
+ fprintf (stderr,
+ _("%s: option `--%s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+ else
+ /* +option or -option */
+ fprintf (stderr,
+ _("%s: option `%c%s' doesn't allow an argument\n"),
+ argv[0], argv[cgetopt_optind - 1][0], pfound->name);
+
+ nextchar += strlen (nextchar);
+
+ cgetopt_optopt = pfound->val;
+ return '?';
+ }
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (cgetopt_optind < argc)
+ cgetopt_optarg = argv[cgetopt_optind++];
+ else
+ {
+ if (cgetopt_opterr)
+ fprintf (stderr,
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[cgetopt_optind - 1]);
+ nextchar += strlen (nextchar);
+ cgetopt_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[cgetopt_optind][1] == '-'
+ || my_index (optstring, *nextchar) == NULL)
+ {
+ if (cgetopt_opterr)
+ {
+ if (argv[cgetopt_optind][1] == '-')
+ /* --option */
+ fprintf (stderr, _("%s: unrecognized option `--%s'\n"),
+ argv[0], nextchar);
+ else
+ /* +option or -option */
+ fprintf (stderr, _("%s: unrecognized option `%c%s'\n"),
+ argv[0], argv[cgetopt_optind][0], nextchar);
+ }
+ nextchar = (char *) "";
+ cgetopt_optind++;
+ cgetopt_optopt = 0;
+ return '?';
+ }
+ }
+
+ /* Look at and handle the next short option-character. */
+
+ {
+ char c = *nextchar++;
+ const char *temp = my_index (optstring, c);
+
+ /* Increment `cgetopt_optind' when we start to process its last character. */
+ if (*nextchar == '\0')
+ ++cgetopt_optind;
+
+ if (temp == NULL || c == ':')
+ {
+ if (cgetopt_opterr)
+ {
+ if (posixly_correct)
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: illegal option -- %c\n"),
+ argv[0], c);
+ else
+ fprintf (stderr, _("%s: invalid option -- %c\n"),
+ argv[0], c);
+ }
+ cgetopt_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')
+ {
+ cgetopt_optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ cgetopt_optind++;
+ }
+ else if (cgetopt_optind == argc)
+ {
+ if (cgetopt_opterr)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr, _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ cgetopt_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. */
+ cgetopt_optarg = argv[cgetopt_optind++];
+
+ /* cgetopt_optarg is now the argument, see if it's in the
+ table of longopts. */
+
+ for (nextchar = nameend = cgetopt_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 (cgetopt_opterr)
+ fprintf (stderr, _("%s: option `-W %s' is ambiguous\n"),
+ argv[0], argv[cgetopt_optind]);
+ nextchar += strlen (nextchar);
+ cgetopt_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)
+ cgetopt_optarg = nameend + 1;
+ else
+ {
+ if (cgetopt_opterr)
+ fprintf (stderr, _("\
+%s: option `-W %s' doesn't allow an argument\n"),
+ argv[0], pfound->name);
+
+ nextchar += strlen (nextchar);
+ return '?';
+ }
+ }
+ else if (pfound->has_arg == 1)
+ {
+ if (cgetopt_optind < argc)
+ cgetopt_optarg = argv[cgetopt_optind++];
+ else
+ {
+ if (cgetopt_opterr)
+ fprintf (stderr,
+ _("%s: option `%s' requires an argument\n"),
+ argv[0], argv[cgetopt_optind - 1]);
+ 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')
+ {
+ cgetopt_optarg = nextchar;
+ cgetopt_optind++;
+ }
+ else
+ cgetopt_optarg = NULL;
+ nextchar = NULL;
+ }
+ else
+ {
+ /* This is an option that requires an argument. */
+ if (*nextchar != '\0')
+ {
+ cgetopt_optarg = nextchar;
+ /* If we end this ARGV-element by taking the rest as an arg,
+ we must advance to the next element now. */
+ cgetopt_optind++;
+ }
+ else if (cgetopt_optind == argc)
+ {
+ if (cgetopt_opterr)
+ {
+ /* 1003.2 specifies the format of this message. */
+ fprintf (stderr,
+ _("%s: option requires an argument -- %c\n"),
+ argv[0], c);
+ }
+ cgetopt_optopt = c;
+ if (optstring[0] == ':')
+ c = ':';
+ else
+ c = '?';
+ }
+ else
+ /* We already incremented `optind' once;
+ increment it again when taking next ARGV-elt as argument. */
+ cgetopt_optarg = argv[cgetopt_optind++];
+ nextchar = NULL;
+ }
+ }
+ return c;
+ }
+}
+
+int
+libiberty_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);
+}
+
+/* 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
+libiberty_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);
+}
+
+#endif
+
+
+extern "C" char
+EXPORT(getopt) (int argc, char *argv[], char *optstring)
+{
+ char r = getopt (argc, argv, optstring);
+
+ EXPORT(optarg) = optarg;
+ EXPORT(optind) = optind;
+ EXPORT(opterr) = opterr;
+ EXPORT(optopt) = optopt;
+
+ if (r == (char)-1)
+ return (char)0;
+ return r;
+}
+
+extern "C" int
+EXPORT(getopt_long) (int argc, char *argv[], char *optstring,
+ const struct option *longopts, int *longindex)
+{
+#if defined(HAVE_GETOPT_LONG)
+ int r = getopt_long (argc, argv, optstring, longopts, longindex);
+
+ EXPORT(optarg) = optarg;
+ EXPORT(optind) = optind;
+ EXPORT(opterr) = opterr;
+ EXPORT(optopt) = optopt;
+#else
+ int r = libiberty_getopt_long (argc, argv, optstring, longopts, longindex);
+
+ EXPORT(optarg) = cgetopt_optarg;
+ EXPORT(optind) = cgetopt_optind;
+ EXPORT(opterr) = cgetopt_opterr;
+ EXPORT(optopt) = cgetopt_optopt;
+#endif
+
+ return r;
+}
+
+
+extern "C" int
+EXPORT(getopt_long_only) (int argc, char *argv[], char *optstring,
+ const struct option *longopts, int *longindex)
+{
+#if defined(HAVE_GETOPT_LONG_ONLY)
+ int r = getopt_long_only (argc, argv, optstring, longopts, longindex);
+
+ EXPORT(optarg) = optarg;
+ EXPORT(optind) = optind;
+ EXPORT(opterr) = opterr;
+ EXPORT(optopt) = optopt;
+#else
+ int r = libiberty_getopt_long_only (argc, argv, optstring, longopts, longindex);
+
+ EXPORT(optarg) = cgetopt_optarg;
+ EXPORT(optind) = cgetopt_optind;
+ EXPORT(opterr) = cgetopt_opterr;
+ EXPORT(optopt) = cgetopt_optopt;
+#endif
+
+ return r;
+}
+
+
/* GNU Modula-2 linking fodder. */
extern "C" void
projects / thirdparty / gcc.git / commitdiff
