sane-project-backends/lib/getopt1.c

204 wiersze
4.7 KiB
C
Czysty Zwykły widok Historia

1999-08-09 18:06:01 +00:00
/* getopt_long and getopt_long_only entry points for GNU getopt.
Copyright (C) 1987,88,89,90,91,92,93,94,96,97,98
Free Software Foundation, Inc.
This file is part of the GNU C Library.
1999-08-09 18:06:01 +00:00
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.
1999-08-09 18:06:01 +00:00
The GNU C Library is distributed in the hope that it will be useful,
1999-08-09 18:06:01 +00:00
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.
1999-08-09 18:06:01 +00:00
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. */
#if !defined(HAVE_GETOPT_H) || !defined(HAVE_GETOPT_LONG)
1999-08-09 18:06:01 +00:00
#ifdef HAVE_CONFIG_H
#include <config.h>
1999-08-09 18:06:01 +00:00
#endif
#ifdef _LIBC
# include <getopt.h>
#else
# include "getopt.h"
#endif
1999-08-09 18:06:01 +00:00
#if !defined __STDC__ || !__STDC__
1999-08-09 18:06:01 +00:00
/* 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
* acinclude.m4, configure.in: Put all libraries into their own *_LIB variables instead of $LIB so that we do not have to link in the world to all executables. Modified SANE_CHECK_U_TYPES to be a little more portable to platforms that use #define for u_* types. Create SANE_CHECK_BACKENDS macro so that PRELOADABLE_BACKENDS can also be valided. Auto-populated PRELAODABLE_BACKENDS when detect dlopen() won't work. Various protability cleanups. * backend/dll.c: Make dll-preload.c a .h since its an include and not compilable byitself. * frontend/Makefile.in, frontend/scanimage.c, include/laaloca.h, lib/Makefile.am, lib/alloca.c, strcasestr.c, tools/Makefile.in, tools/sane-desc.c: Convert lib/ to automake. Create a liblib.la for everyone to use and a libfelib.la for only frontend programs. Make all internal programs be prefixed with sanei_ as not to conflict with other programs libsane is linked in with that will also most likely create similar internal utils on problem platforms. * include/getopt.h, lib/getopt.c, lib/getopt1.c: Always compile and link in getopt_long() but prefix it with sanei_. Its easier to always use internal version then try to figure out what platforms support getopt_long() and what header files to use. * backend/Makefile.am: Convert backend makefile to automake. Initial version that is feature parity with original but uses specific rules instead of wildcards and only links in libraries/objs really required. Room for more cleanup of whats linked in once all makefiles have been converted to automake.
2009-01-31 03:12:18 +00:00
/* Always compile for Sane */
#if defined ELIDE_CODE
#undef ELIDE_CODE
#endif
#ifndef ELIDE_CODE
1999-08-09 18:06:01 +00:00
/* This needs to come after some library #include
to get __GNU_LIBRARY__ defined. */
#ifdef __GNU_LIBRARY__
#include <stdlib.h>
#endif
#ifndef NULL
#define NULL 0
#endif
int
getopt_long (argc, argv, options, long_options, opt_index)
int argc;
char *const *argv;
const char *options;
const struct option *long_options;
int *opt_index;
{
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
getopt_long_only (argc, argv, options, long_options, opt_index)
int argc;
char *const *argv;
const char *options;
const struct option *long_options;
int *opt_index;
{
return _getopt_internal (argc, argv, options, long_options, opt_index, 1);
}
# ifdef _LIBC
libc_hidden_def (getopt_long)
libc_hidden_def (getopt_long_only)
# endif
1999-08-09 18:06:01 +00:00
#endif /* Not ELIDE_CODE. */
1999-08-09 18:06:01 +00:00
#ifdef TEST
#include <stdio.h>
int
main (argc, argv)
int argc;
char **argv;
{
int c;
int digit_optind = 0;
while (1)
{
int this_option_optind = optind ? optind : 1;
int option_index = 0;
static struct option long_options[] =
{
{"add", 1, 0, 0},
{"append", 0, 0, 0},
{"delete", 1, 0, 0},
{"verbose", 0, 0, 0},
{"create", 0, 0, 0},
{"file", 1, 0, 0},
{0, 0, 0, 0}
};
c = getopt_long (argc, argv, "abc:d:0123456789",
long_options, &option_index);
if (c == -1)
1999-08-09 18:06:01 +00:00
break;
switch (c)
{
case 0:
printf ("option %s", long_options[option_index].name);
if (optarg)
printf (" with arg %s", optarg);
printf ("\n");
break;
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 'd':
printf ("option d 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 */
#endif /* HAVE_GETOPT_LONG */