-/*
- * Copyright (c) 1987, 1993, 1994, 1996
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef __GETOPT_H__
-#define __GETOPT_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern int opterr; /* if error message should be printed */
-extern int optind; /* index into parent argv vector */
-extern int optopt; /* character checked for validity */
-extern int optreset; /* reset getopt */
-extern char *optarg; /* argument associated with option */
-
-int getopt (int, char * const *, const char *);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __GETOPT_H__ */
-
-#ifndef __UNISTD_GETOPT__
-#ifndef __GETOPT_LONG_H__
-#define __GETOPT_LONG_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-struct option {
- const char *name;
- int has_arg;
- int *flag;
- int val;
-};
-
-int getopt_long (int, char *const *, const char *, const struct option *, int *);
-#ifndef HAVE_DECL_GETOPT
-#define HAVE_DECL_GETOPT 1
-#endif
-
-#define no_argument 0
-#define required_argument 1
-#define optional_argument 2
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __GETOPT_LONG_H__ */
-#endif /* __UNISTD_GETOPT__ */
-/* $NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $ */
-
-/*-
- * Copyright (c) 2000 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Dieter Baron and Thomas Klausner.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the NetBSD
- * Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <assert.h>
-#include <errno.h>
-#include <stdlib.h>
-#include <string.h>
-#include <getopt.h>
-#include <stdarg.h>
-#include <stdio.h>
-
-#define REPLACE_GETOPT
-
-#define _DIAGASSERT(x) do {} while (0)
-
-#ifdef REPLACE_GETOPT
-#ifdef __weak_alias
-__weak_alias(getopt,_getopt)
-#endif
-int opterr = 1; /* if error message should be printed */
-int optind = 1; /* index into parent argv vector */
-int optopt = '?'; /* character checked for validity */
-int optreset; /* reset getopt */
-char *optarg; /* argument associated with option */
-#endif
-
-#ifdef __weak_alias
-__weak_alias(getopt_long,_getopt_long)
-#endif
-
-#ifndef __CYGWIN__
-#define __progname __argv[0]
-#else
-extern char __declspec(dllimport) *__progname;
-#endif
-
-#define IGNORE_FIRST (*options == '-' || *options == '+')
-#define PRINT_ERROR ((opterr) && ((*options != ':') \
- || (IGNORE_FIRST && options[1] != ':')))
-
-/* This differs from the cygwin implementation, which effectively defaults to
- PC, but is consistent with the NetBSD implementation and doc's. */
-#ifndef IS_POSIXLY_CORRECT
-#define IS_POSIXLY_CORRECT (getenv("POSIXLY_CORRECT") != NULL)
-#endif
-
-#define PERMUTE (!IS_POSIXLY_CORRECT && !IGNORE_FIRST)
-/* XXX: GNU ignores PC if *options == '-' */
-#define IN_ORDER (!IS_POSIXLY_CORRECT && *options == '-')
-
-/* return values */
-#define BADCH (int)'?'
-#define BADARG ((IGNORE_FIRST && options[1] == ':') \
- || (*options == ':') ? (int)':' : (int)'?')
-#define INORDER (int)1
-
-static char EMSG[1];
-
-static int getopt_internal (int, char * const *, const char *);
-static int gcd (int, int);
-static void permute_args (int, int, int, char * const *);
-
-static char *place = EMSG; /* option letter processing */
-
-/* XXX: set optreset to 1 rather than these two */
-static int nonopt_start = -1; /* first non option argument (for permute) */
-static int nonopt_end = -1; /* first option after non options (for permute) */
-
-/* Error messages */
-static const char recargchar[] = "option requires an argument -- %c";
-static const char recargstring[] = "option requires an argument -- %s";
-static const char ambig[] = "ambiguous option -- %.*s";
-static const char noarg[] = "option doesn't take an argument -- %.*s";
-static const char illoptchar[] = "unknown option -- %c";
-static const char illoptstring[] = "unknown option -- %s";
-
-static void
-_vwarnx(const char *fmt, va_list ap)
-{
- (void)fprintf(stderr, "%s: ", __progname);
- if (fmt != NULL)
- (void)vfprintf(stderr, fmt, ap);
- (void)fprintf(stderr, "\n");
-}
-
-static void
-warnx(const char *fmt, ...)
-{
- va_list ap;
- va_start(ap, fmt);
- _vwarnx(fmt, ap);
- va_end(ap);
-}
-
-/*
- * Compute the greatest common divisor of a and b.
- */
-static int
-gcd(a, b)
- int a;
- int b;
-{
- int c;
-
- c = a % b;
- while (c != 0) {
- a = b;
- b = c;
- c = a % b;
- }
-
- return b;
-}
-
-/*
- * Exchange the block from nonopt_start to nonopt_end with the block
- * from nonopt_end to opt_end (keeping the same order of arguments
- * in each block).
- */
-static void
-permute_args(panonopt_start, panonopt_end, opt_end, nargv)
- int panonopt_start;
- int panonopt_end;
- int opt_end;
- char * const *nargv;
-{
- int cstart, cyclelen, i, j, ncycle, nnonopts, nopts, pos;
- char *swap;
-
- _DIAGASSERT(nargv != NULL);
-
- /*
- * compute lengths of blocks and number and size of cycles
- */
- nnonopts = panonopt_end - panonopt_start;
- nopts = opt_end - panonopt_end;
- ncycle = gcd(nnonopts, nopts);
- cyclelen = (opt_end - panonopt_start) / ncycle;
-
- for (i = 0; i < ncycle; i++) {
- cstart = panonopt_end+i;
- pos = cstart;
- for (j = 0; j < cyclelen; j++) {
- if (pos >= panonopt_end)
- pos -= nnonopts;
- else
- pos += nopts;
- swap = nargv[pos];
- /* LINTED const cast */
- ((char **) nargv)[pos] = nargv[cstart];
- /* LINTED const cast */
- ((char **)nargv)[cstart] = swap;
- }
- }
-}
-
-/*
- * getopt_internal --
- * Parse argc/argv argument vector. Called by user level routines.
- * Returns -2 if -- is found (can be long option or end of options marker).
- */
-static int
-getopt_internal(nargc, nargv, options)
- int nargc;
- char * const *nargv;
- const char *options;
-{
- char *oli; /* option letter list index */
- int optchar;
-
- _DIAGASSERT(nargv != NULL);
- _DIAGASSERT(options != NULL);
-
- optarg = NULL;
-
- /*
- * XXX Some programs (like rsyncd) expect to be able to
- * XXX re-initialize optind to 0 and have getopt_long(3)
- * XXX properly function again. Work around this braindamage.
- */
- if (optind == 0)
- optind = 1;
-
- if (optreset)
- nonopt_start = nonopt_end = -1;
-start:
- if (optreset || !*place) { /* update scanning pointer */
- optreset = 0;
- if (optind >= nargc) { /* end of argument vector */
- place = EMSG;
- if (nonopt_end != -1) {
- /* do permutation, if we have to */
- permute_args(nonopt_start, nonopt_end,
- optind, nargv);
- optind -= nonopt_end - nonopt_start;
- }
- else if (nonopt_start != -1) {
- /*
- * If we skipped non-options, set optind
- * to the first of them.
- */
- optind = nonopt_start;
- }
- nonopt_start = nonopt_end = -1;
- return -1;
- }
- if ((*(place = nargv[optind]) != '-')
- || (place[1] == '\0')) { /* found non-option */
- place = EMSG;
- if (IN_ORDER) {
- /*
- * GNU extension:
- * return non-option as argument to option 1
- */
- optarg = nargv[optind++];
- return INORDER;
- }
- if (!PERMUTE) {
- /*
- * if no permutation wanted, stop parsing
- * at first non-option
- */
- return -1;
- }
- /* do permutation */
- if (nonopt_start == -1)
- nonopt_start = optind;
- else if (nonopt_end != -1) {
- permute_args(nonopt_start, nonopt_end,
- optind, nargv);
- nonopt_start = optind -
- (nonopt_end - nonopt_start);
- nonopt_end = -1;
- }
- optind++;
- /* process next argument */
- goto start;
- }
- if (nonopt_start != -1 && nonopt_end == -1)
- nonopt_end = optind;
- if (place[1] && *++place == '-') { /* found "--" */
- place++;
- return -2;
- }
- }
- if ((optchar = (int)*place++) == (int)':' ||
- (oli = strchr(options + (IGNORE_FIRST ? 1 : 0), optchar)) == NULL) {
- /* option letter unknown or ':' */
- if (!*place)
- ++optind;
- if (PRINT_ERROR)
- warnx(illoptchar, optchar);
- optopt = optchar;
- return BADCH;
- }
- if (optchar == 'W' && oli[1] == ';') { /* -W long-option */
- /* XXX: what if no long options provided (called by getopt)? */
- if (*place)
- return -2;
-
- if (++optind >= nargc) { /* no arg */
- place = EMSG;
- if (PRINT_ERROR)
- warnx(recargchar, optchar);
- optopt = optchar;
- return BADARG;
- } else /* white space */
- place = nargv[optind];
- /*
- * Handle -W arg the same as --arg (which causes getopt to
- * stop parsing).
- */
- return -2;
- }
- if (*++oli != ':') { /* doesn't take argument */
- if (!*place)
- ++optind;
- } else { /* takes (optional) argument */
- optarg = NULL;
- if (*place) /* no white space */
- optarg = place;
- /* XXX: disable test for :: if PC? (GNU doesn't) */
- else if (oli[1] != ':') { /* arg not optional */
- if (++optind >= nargc) { /* no arg */
- place = EMSG;
- if (PRINT_ERROR)
- warnx(recargchar, optchar);
- optopt = optchar;
- return BADARG;
- } else
- optarg = nargv[optind];
- }
- place = EMSG;
- ++optind;
- }
- /* dump back option letter */
- return optchar;
-}
-
-#ifdef REPLACE_GETOPT
-/*
- * getopt --
- * Parse argc/argv argument vector.
- *
- * [eventually this will replace the real getopt]
- */
-int
-getopt(nargc, nargv, options)
- int nargc;
- char * const *nargv;
- const char *options;
-{
- int retval;
-
- _DIAGASSERT(nargv != NULL);
- _DIAGASSERT(options != NULL);
-
- if ((retval = getopt_internal(nargc, nargv, options)) == -2) {
- ++optind;
- /*
- * We found an option (--), so if we skipped non-options,
- * we have to permute.
- */
- if (nonopt_end != -1) {
- permute_args(nonopt_start, nonopt_end, optind,
- nargv);
- optind -= nonopt_end - nonopt_start;
- }
- nonopt_start = nonopt_end = -1;
- retval = -1;
- }
- return retval;
-}
-#endif
-
-/*
- * getopt_long --
- * Parse argc/argv argument vector.
- */
-int
-getopt_long(nargc, nargv, options, long_options, idx)
- int nargc;
- char * const *nargv;
- const char *options;
- const struct option *long_options;
- int *idx;
-{
- int retval;
-
- _DIAGASSERT(nargv != NULL);
- _DIAGASSERT(options != NULL);
- _DIAGASSERT(long_options != NULL);
- /* idx may be NULL */
-
- if ((retval = getopt_internal(nargc, nargv, options)) == -2) {
- char *current_argv, *has_equal;
- size_t current_argv_len;
- int i, match;
-
- current_argv = place;
- match = -1;
-
- optind++;
- place = EMSG;
-
- if (*current_argv == '\0') { /* found "--" */
- /*
- * We found an option (--), so if we skipped
- * non-options, we have to permute.
- */
- if (nonopt_end != -1) {
- permute_args(nonopt_start, nonopt_end,
- optind, nargv);
- optind -= nonopt_end - nonopt_start;
- }
- nonopt_start = nonopt_end = -1;
- return -1;
- }
- if ((has_equal = strchr(current_argv, '=')) != NULL) {
- /* argument found (--option=arg) */
- current_argv_len = has_equal - current_argv;
- has_equal++;
- } else
- current_argv_len = strlen(current_argv);
-
- for (i = 0; long_options[i].name; i++) {
- /* find matching long option */
- if (strncmp(current_argv, long_options[i].name,
- current_argv_len))
- continue;
-
- if (strlen(long_options[i].name) ==
- (unsigned)current_argv_len) {
- /* exact match */
- match = i;
- break;
- }
- if (match == -1) /* partial match */
- match = i;
- else {
- /* ambiguous abbreviation */
- if (PRINT_ERROR)
- warnx(ambig, (int)current_argv_len,
- current_argv);
- optopt = 0;
- return BADCH;
- }
- }
- if (match != -1) { /* option found */
- if (long_options[match].has_arg == no_argument
- && has_equal) {
- if (PRINT_ERROR)
- warnx(noarg, (int)current_argv_len,
- current_argv);
- /*
- * XXX: GNU sets optopt to val regardless of
- * flag
- */
- if (long_options[match].flag == NULL)
- optopt = long_options[match].val;
- else
- optopt = 0;
- return BADARG;
- }
- if (long_options[match].has_arg == required_argument ||
- long_options[match].has_arg == optional_argument) {
- if (has_equal)
- optarg = has_equal;
- else if (long_options[match].has_arg ==
- required_argument) {
- /*
- * optional argument doesn't use
- * next nargv
- */
- optarg = nargv[optind++];
- }
- }
- if ((long_options[match].has_arg == required_argument)
- && (optarg == NULL)) {
- /*
- * Missing argument; leading ':'
- * indicates no error should be generated
- */
- if (PRINT_ERROR)
- warnx(recargstring, current_argv);
- /*
- * XXX: GNU sets optopt to val regardless
- * of flag
- */
- if (long_options[match].flag == NULL)
- optopt = long_options[match].val;
- else
- optopt = 0;
- --optind;
- return BADARG;
- }
- } else { /* unknown option */
- if (PRINT_ERROR)
- warnx(illoptstring, current_argv);
- optopt = 0;
- return BADCH;
- }
- if (long_options[match].flag) {
- *long_options[match].flag = long_options[match].val;
- retval = 0;
- } else
- retval = long_options[match].val;
- if (idx)
- *idx = match;
- }
- return retval;
-}
OSDN Git Service
