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/*-
* Public Domain 2014-2016 MongoDB, Inc.
* Public Domain 2008-2014 WiredTiger, Inc.
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/* $NetBSD: getopt.c,v 1.26 2003/08/07 16:43:40 agc Exp $ */
/*
* Copyright (c) 1987, 1993, 1994
* 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.
* 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.
*/
#include "wt_internal.h"
extern int __wt_opterr, __wt_optind, __wt_optopt, __wt_optreset;
int __wt_opterr = 1, /* if error message should be printed */
__wt_optind = 1, /* index into parent argv vector */
__wt_optopt, /* character checked for validity */
__wt_optreset; /* reset getopt */
extern char *__wt_optarg;
char *__wt_optarg; /* argument associated with option */
#define BADCH (int)'?'
#define BADARG (int)':'
#define EMSG ""
/*
* __wt_getopt --
* Parse argc/argv argument vector.
*/
int
__wt_getopt(
const char *progname, int nargc, char * const *nargv, const char *ostr)
WT_GCC_FUNC_ATTRIBUTE((visibility("default")))
{
static const char *place = EMSG; /* option letter processing */
const char *oli; /* option letter list index */
if (__wt_optreset || *place == 0) { /* update scanning pointer */
__wt_optreset = 0;
place = nargv[__wt_optind];
if (__wt_optind >= nargc || *place++ != '-') {
/* Argument is absent or is not an option */
place = EMSG;
return (-1);
}
__wt_optopt = *place++;
if (__wt_optopt == '-' && *place == 0) {
/* "--" => end of options */
++__wt_optind;
place = EMSG;
return (-1);
}
if (__wt_optopt == 0) {
/* Solitary '-', treat as a '-' option
if the program (eg su) is looking for it. */
place = EMSG;
if (strchr(ostr, '-') == NULL)
return (-1);
__wt_optopt = '-';
}
} else
__wt_optopt = *place++;
/* See if option letter is one the caller wanted... */
if (__wt_optopt == ':' || (oli = strchr(ostr, __wt_optopt)) == NULL) {
if (*place == 0)
++__wt_optind;
if (__wt_opterr && *ostr != ':')
(void)fprintf(stderr,
"%s: illegal option -- %c\n", progname,
__wt_optopt);
return (BADCH);
}
/* Does this option need an argument? */
if (oli[1] != ':') {
/* don't need argument */
__wt_optarg = NULL;
if (*place == 0)
++__wt_optind;
} else {
/* Option-argument is either the rest of this argument or the
entire next argument. */
if (*place)
__wt_optarg = (char *)place;
else if (nargc > ++__wt_optind)
__wt_optarg = nargv[__wt_optind];
else {
/* option-argument absent */
place = EMSG;
if (*ostr == ':')
return (BADARG);
if (__wt_opterr)
(void)fprintf(stderr,
"%s: option requires an argument -- %c\n",
progname, __wt_optopt);
return (BADCH);
}
place = EMSG;
++__wt_optind;
}
return (__wt_optopt); /* return option letter */
}
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