diff options
Diffstat (limited to 'wsutil/wsgetopt.h')
| -rw-r--r-- | wsutil/wsgetopt.h | 152 |
1 files changed, 108 insertions, 44 deletions
diff --git a/wsutil/wsgetopt.h b/wsutil/wsgetopt.h index 9d4f817f3a..3b4367cbcd 100644 --- a/wsutil/wsgetopt.h +++ b/wsutil/wsgetopt.h @@ -1,22 +1,50 @@ /* Declarations for getopt. - Copyright (C) 1989, 1990, 1991, 1992, 1993 Free Software Foundation, Inc. + Copyright (C) 1989-1994,1996-1999,2001,2003,2004,2009,2010 + Free Software Foundation, Inc. + This file is part of the GNU C Library. - This program is free software; you can redistribute it and/or modify it - under the terms of the GNU General Public License as published by the - Free Software Foundation; either version 2, or (at your option) any - later version. + 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. - This program is distributed in the hope that it will be useful, + 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 General Public License for more details. + 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 General Public License - along with this program; if not, write to the Free Software - Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + 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 -#define _GETOPT_H 1 + +#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 + +#ifndef __THROW +# ifndef __GNUC_PREREQ +# define __GNUC_PREREQ(maj, min) (0) +# endif +# if defined __cplusplus && __GNUC_PREREQ (2,8) +# define __THROW throw () +# else +# define __THROW +# endif +#endif #ifdef __cplusplus extern "C" { @@ -36,7 +64,7 @@ WS_VAR_IMPORT char *optarg; On entry to `getopt', zero means this is the first call; initialize. - When `getopt' returns EOF, this is the index of the first of the + 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 @@ -53,6 +81,7 @@ WS_VAR_IMPORT int opterr; WS_VAR_IMPORT 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 @@ -76,11 +105,7 @@ WS_VAR_IMPORT int optopt; struct option { -#if __STDC__ 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; @@ -90,40 +115,79 @@ struct option /* Names for the values of the `has_arg' field of `struct option'. */ -#define no_argument 0 -#define required_argument 1 -#define optional_argument 2 +# 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. -#if __STDC__ -#if defined(__GNU_LIBRARY__) + 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'. */ + +#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); +extern int getopt (int ___argc, char *const *___argv, const char *__shortopts) + __THROW; + +# if defined __need_getopt && defined __USE_POSIX2 \ + && !defined __USE_POSIX_IMPLICITLY && !defined __USE_GNU +/* The GNU getopt has more functionality than the standard version. The + additional functionality can be disable at runtime. This redirection + helps to also do this at runtime. */ +# ifdef __REDIRECT + extern int __REDIRECT_NTH (getopt, (int ___argc, char *const *___argv, + const char *__shortopts), + __posix_getopt); +# else +extern int __posix_getopt (int ___argc, char *const *___argv, + const char *__shortopts) __THROW; +# define getopt __posix_getopt +# endif +# endif #else /* not __GNU_LIBRARY__ */ -extern int getopt (int argc, char *const *argv, const char *optstring); -#endif /* not __GNU_LIBRARY__ */ -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); -#else /* not __STDC__ */ -extern int getopt (int, char *const *, const char *); -extern int getopt_long (); -extern int getopt_long_only (); - -extern int _getopt_internal (); -#endif /* not __STDC__ */ +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) + __THROW; +extern int getopt_long_only (int ___argc, char *const *___argv, + const char *__shortopts, + const struct option *__longopts, int *__longind) + __THROW; + +#endif #ifdef __cplusplus } #endif -#endif /* _GETOPT_H */ +/* Make sure we later can get all the definitions and declarations. */ +#undef __need_getopt + +#endif /* getopt.h */ |