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getopt_int.h File Reference
#include <getopt.h>
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Classes

struct  _getopt_data

Defines

#define _GETOPT_DATA_INITIALIZER   { 1, 1 }

Enumerations

enum  __ord { REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER }

Functions

int _getopt_internal (int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, int __long_only, int __posixly_correct)
int _getopt_internal_r (int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, int __long_only, struct _getopt_data *__data, int __posixly_correct)
int _getopt_long_r (int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, struct _getopt_data *__data)
int _getopt_long_only_r (int ___argc, char **___argv, const char *__shortopts, const struct option *__longopts, int *__longind, struct _getopt_data *__data)

Class Documentation

struct _getopt_data

Definition at line 68 of file getopt_int.h.

Class Members
int __initialized
char * __nextchar
char * optarg
int opterr
int optind
int optopt

Define Documentation

#define _GETOPT_DATA_INITIALIZER   { 1, 1 }

Definition at line 116 of file getopt_int.h.


Enumeration Type Documentation

enum __ord
Enumerator:
REQUIRE_ORDER 
PERMUTE 
RETURN_IN_ORDER 

Definition at line 62 of file getopt_int.h.


Function Documentation

int _getopt_internal ( int  ___argc,
char **  ___argv,
const char *  __shortopts,
const struct option __longopts,
int *  __longind,
int  __long_only,
int  __posixly_correct 
)

Definition at line 1075 of file getopt.c.

{
  int result;

  getopt_data.optind = optind;
  getopt_data.opterr = opterr;

  result = _getopt_internal_r (argc, argv, optstring, longopts,
                               longind, long_only, &getopt_data,
                               posixly_correct);

  optind = getopt_data.optind;
  optarg = getopt_data.optarg;
  optopt = getopt_data.optopt;

  return result;
}

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int _getopt_internal_r ( int  ___argc,
char **  ___argv,
const char *  __shortopts,
const struct option __longopts,
int *  __longind,
int  __long_only,
struct _getopt_data __data,
int  __posixly_correct 
)

Definition at line 346 of file getopt.c.

{
  int print_errors = d->opterr;

  if (argc < 1)
    return -1;

  d->optarg = NULL;

  if (d->optind == 0 || !d->__initialized)
    {
      if (d->optind == 0)
        d->optind = 1;  /* Don't scan ARGV[0], the program name.  */
      optstring = _getopt_initialize (argc, argv, optstring, d,
                                      posixly_correct);
      d->__initialized = 1;
    }
  else if (optstring[0] == '-' || optstring[0] == '+')
    optstring++;
  if (optstring[0] == ':')
    print_errors = 0;

  /* 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[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[d->optind][0] != '-' || argv[d->optind][1] == '\0')
#endif

  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 (d->__last_nonopt > d->optind)
        d->__last_nonopt = d->optind;
      if (d->__first_nonopt > d->optind)
        d->__first_nonopt = d->optind;

      if (d->__ordering == PERMUTE)
        {
          /* If we have just processed some options following some non-options,
             exchange them so that the options come first.  */

          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 (d->optind < argc && NONOPTION_P)
            d->optind++;
          d->__last_nonopt = d->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 (d->optind != argc && !strcmp (argv[d->optind], "--"))
        {
          d->optind++;

          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;

          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 (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 (d->__first_nonopt != d->__last_nonopt)
            d->optind = d->__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 (d->__ordering == REQUIRE_ORDER)
            return -1;
          d->optarg = argv[d->optind++];
          return 1;
        }

      /* We have found another option-ARGV-element.
         Skip the initial punctuation.  */

      d->__nextchar = (argv[d->optind] + 1
                  + (longopts != NULL && argv[d->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[d->optind][1] == '-'
          || (long_only && (argv[d->optind][2]
                            || !strchr (optstring, argv[d->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 = 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, d->__nextchar, nameend - d->__nextchar))
          {
            if ((unsigned int) (nameend - d->__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;

              if (__asprintf (&buf, _("%s: option '%s' is ambiguous\n"),
                              argv[0], argv[d->optind]) >= 0)
                {
                  _IO_flockfile (stderr);

                  int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                  ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;

                  __fxprintf (NULL, "%s", buf);

                  ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                  _IO_funlockfile (stderr);

                  free (buf);
                }
#else
              fprintf (stderr, _("%s: option '%s' is ambiguous\n"),
                       argv[0], argv[d->optind]);
#endif
            }
          d->__nextchar += strlen (d->__nextchar);
          d->optind++;
          d->optopt = 0;
          return '?';
        }

      if (pfound != NULL)
        {
          option_index = indfound;
          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)
                d->optarg = nameend + 1;
              else
                {
                  if (print_errors)
                    {
#if defined _LIBC && defined USE_IN_LIBIO
                      char *buf;
                      int n;
#endif

                      if (argv[d->optind - 1][1] == '-')
                        {
                          /* --option */
#if defined _LIBC && defined USE_IN_LIBIO
                          n = __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
                          n = __asprintf (&buf, _("\
%s: option '%c%s' doesn't allow an argument\n"),
                                          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[d->optind - 1][0],
                                   pfound->name);
#endif
                        }

#if defined _LIBC && defined USE_IN_LIBIO
                      if (n >= 0)
                        {
                          _IO_flockfile (stderr);

                          int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                          ((_IO_FILE *) stderr)->_flags2
                            |= _IO_FLAGS2_NOTCANCEL;

                          __fxprintf (NULL, "%s", buf);

                          ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                          _IO_funlockfile (stderr);

                          free (buf);
                        }
#endif
                    }

                  d->__nextchar += strlen (d->__nextchar);

                  d->optopt = pfound->val;
                  return '?';
                }
            }
          else if (pfound->has_arg == 1)
            {
              if (d->optind < argc)
                d->optarg = argv[d->optind++];
              else
                {
                  if (print_errors)
                    {
#if defined _LIBC && defined USE_IN_LIBIO
                      char *buf;

                      if (__asprintf (&buf, _("\
%s: option '--%s' requires an argument\n"),
                                      argv[0], pfound->name) >= 0)
                        {
                          _IO_flockfile (stderr);

                          int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                          ((_IO_FILE *) stderr)->_flags2
                            |= _IO_FLAGS2_NOTCANCEL;

                          __fxprintf (NULL, "%s", buf);

                          ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                          _IO_funlockfile (stderr);

                          free (buf);
                        }
#else
                      fprintf (stderr,
                               _("%s: option '--%s' requires an argument\n"),
                               argv[0], pfound->name);
#endif
                    }
                  d->__nextchar += strlen (d->__nextchar);
                  d->optopt = pfound->val;
                  return optstring[0] == ':' ? ':' : '?';
                }
            }
          d->__nextchar += strlen (d->__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[d->optind][1] == '-'
          || strchr (optstring, *d->__nextchar) == NULL)
        {
          if (print_errors)
            {
#if defined _LIBC && defined USE_IN_LIBIO
              char *buf;
              int n;
#endif

              if (argv[d->optind][1] == '-')
                {
                  /* --option */
#if defined _LIBC && defined USE_IN_LIBIO
                  n = __asprintf (&buf, _("%s: unrecognized option '--%s'\n"),
                                  argv[0], d->__nextchar);
#else
                  fprintf (stderr, _("%s: unrecognized option '--%s'\n"),
                           argv[0], d->__nextchar);
#endif
                }
              else
                {
                  /* +option or -option */
#if defined _LIBC && defined USE_IN_LIBIO
                  n = __asprintf (&buf, _("%s: unrecognized option '%c%s'\n"),
                                  argv[0], argv[d->optind][0], d->__nextchar);
#else
                  fprintf (stderr, _("%s: unrecognized option '%c%s'\n"),
                           argv[0], argv[d->optind][0], d->__nextchar);
#endif
                }

#if defined _LIBC && defined USE_IN_LIBIO
              if (n >= 0)
                {
                  _IO_flockfile (stderr);

                  int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                  ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;

                  __fxprintf (NULL, "%s", buf);

                  ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                  _IO_funlockfile (stderr);

                  free (buf);
                }
#endif
            }
          d->__nextchar = (char *) "";
          d->optind++;
          d->optopt = 0;
          return '?';
        }
    }

  /* Look at and handle the next short option-character.  */

  {
    char c = *d->__nextchar++;
    const char *temp = strchr (optstring, c);

    /* Increment `optind' when we start to process its last character.  */
    if (*d->__nextchar == '\0')
      ++d->optind;

    if (temp == NULL || c == ':' || c == ';')
      {
        if (print_errors)
          {
#if defined _LIBC && defined USE_IN_LIBIO
              char *buf;
              int n;
#endif

#if defined _LIBC && defined USE_IN_LIBIO
              n = __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 (n >= 0)
              {
                _IO_flockfile (stderr);

                int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;

                __fxprintf (NULL, "%s", buf);

                ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                _IO_funlockfile (stderr);

                free (buf);
              }
#endif
          }
        d->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 (*d->__nextchar != '\0')
          {
            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.  */
            d->optind++;
          }
        else if (d->optind == argc)
          {
            if (print_errors)
              {
#if defined _LIBC && defined USE_IN_LIBIO
                char *buf;

                if (__asprintf (&buf,
                                _("%s: option requires an argument -- '%c'\n"),
                                argv[0], c) >= 0)
                  {
                    _IO_flockfile (stderr);

                    int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                    ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;

                    __fxprintf (NULL, "%s", buf);

                    ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                    _IO_funlockfile (stderr);

                    free (buf);
                  }
#else
                fprintf (stderr,
                         _("%s: option requires an argument -- '%c'\n"),
                         argv[0], c);
#endif
              }
            d->optopt = c;
            if (optstring[0] == ':')
              c = ':';
            else
              c = '?';
            return c;
          }
        else
          /* We already incremented `d->optind' once;
             increment it again when taking next ARGV-elt as argument.  */
          d->optarg = argv[d->optind++];

        /* optarg is now the argument, see if it's in the
           table of longopts.  */

        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, d->__nextchar, nameend - d->__nextchar))
            {
              if ((unsigned int) (nameend - d->__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 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;

                if (__asprintf (&buf, _("%s: option '-W %s' is ambiguous\n"),
                                argv[0], d->optarg) >= 0)
                  {
                    _IO_flockfile (stderr);

                    int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                    ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;

                    __fxprintf (NULL, "%s", buf);

                    ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                    _IO_funlockfile (stderr);

                    free (buf);
                  }
#else
                fprintf (stderr, _("%s: option '-W %s' is ambiguous\n"),
                         argv[0], d->optarg);
#endif
              }
            d->__nextchar += strlen (d->__nextchar);
            d->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)
                  d->optarg = nameend + 1;
                else
                  {
                    if (print_errors)
                      {
#if defined _LIBC && defined USE_IN_LIBIO
                        char *buf;

                        if (__asprintf (&buf, _("\
%s: option '-W %s' doesn't allow an argument\n"),
                                        argv[0], pfound->name) >= 0)
                          {
                            _IO_flockfile (stderr);

                            int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                            ((_IO_FILE *) stderr)->_flags2
                              |= _IO_FLAGS2_NOTCANCEL;

                            __fxprintf (NULL, "%s", buf);

                            ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                            _IO_funlockfile (stderr);

                            free (buf);
                          }
#else
                        fprintf (stderr, _("\
%s: option '-W %s' doesn't allow an argument\n"),
                                 argv[0], pfound->name);
#endif
                      }

                    d->__nextchar += strlen (d->__nextchar);
                    return '?';
                  }
              }
            else if (pfound->has_arg == 1)
              {
                if (d->optind < argc)
                  d->optarg = argv[d->optind++];
                else
                  {
                    if (print_errors)
                      {
#if defined _LIBC && defined USE_IN_LIBIO
                        char *buf;

                        if (__asprintf (&buf, _("\
%s: option '-W %s' requires an argument\n"),
                                        argv[0], pfound->name) >= 0)
                          {
                            _IO_flockfile (stderr);

                            int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                            ((_IO_FILE *) stderr)->_flags2
                              |= _IO_FLAGS2_NOTCANCEL;

                            __fxprintf (NULL, "%s", buf);

                            ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                            _IO_funlockfile (stderr);

                            free (buf);
                          }
#else
                        fprintf (stderr, _("\
%s: option '-W %s' requires an argument\n"),
                                 argv[0], pfound->name);
#endif
                      }
                    d->__nextchar += strlen (d->__nextchar);
                    return optstring[0] == ':' ? ':' : '?';
                  }
              }
            else
              d->optarg = NULL;
            d->__nextchar += strlen (d->__nextchar);
            if (longind != NULL)
              *longind = option_index;
            if (pfound->flag)
              {
                *(pfound->flag) = pfound->val;
                return 0;
              }
            return pfound->val;
          }
          d->__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 (*d->__nextchar != '\0')
              {
                d->optarg = d->__nextchar;
                d->optind++;
              }
            else
              d->optarg = NULL;
            d->__nextchar = NULL;
          }
        else
          {
            /* This is an option that requires an argument.  */
            if (*d->__nextchar != '\0')
              {
                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.  */
                d->optind++;
              }
            else if (d->optind == argc)
              {
                if (print_errors)
                  {
#if defined _LIBC && defined USE_IN_LIBIO
                    char *buf;

                    if (__asprintf (&buf, _("\
%s: option requires an argument -- '%c'\n"),
                                    argv[0], c) >= 0)
                      {
                        _IO_flockfile (stderr);

                        int old_flags2 = ((_IO_FILE *) stderr)->_flags2;
                        ((_IO_FILE *) stderr)->_flags2 |= _IO_FLAGS2_NOTCANCEL;

                        __fxprintf (NULL, "%s", buf);

                        ((_IO_FILE *) stderr)->_flags2 = old_flags2;
                        _IO_funlockfile (stderr);

                        free (buf);
                      }
#else
                    fprintf (stderr,
                             _("%s: option requires an argument -- '%c'\n"),
                             argv[0], c);
#endif
                  }
                d->optopt = c;
                if (optstring[0] == ':')
                  c = ':';
                else
                  c = '?';
              }
            else
              /* We already incremented `optind' once;
                 increment it again when taking next ARGV-elt as argument.  */
              d->optarg = argv[d->optind++];
            d->__nextchar = NULL;
          }
      }
    return c;
  }
}

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int _getopt_long_only_r ( int  ___argc,
char **  ___argv,
const char *  __shortopts,
const struct option __longopts,
int *  __longind,
struct _getopt_data __data 
)

Definition at line 71 of file getopt1.c.

{
  return _getopt_internal_r (argc, argv, options, long_options, opt_index,
                             1, d, 0);
}

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int _getopt_long_r ( int  ___argc,
char **  ___argv,
const char *  __shortopts,
const struct option __longopts,
int *  __longind,
struct _getopt_data __data 
)

Definition at line 48 of file getopt1.c.

{
  return _getopt_internal_r (argc, argv, options, long_options, opt_index,
                             0, d, 0);
}

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