/*- * See the file LICENSE for redistribution information. * * Copyright (c) 1996-2005 * Sleepycat Software. All rights reserved. */ /* * 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. * 3. 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. * * $Id: getopt.c,v 12.1 2005/06/16 20:20:48 bostic Exp $ */ #include "db_config.h" #ifndef NO_SYSTEM_INCLUDES #include <stdio.h> #include <stdlib.h> #include <string.h> #endif #include "db_int.h" int __db_getopt_reset; /* global reset for VxWorks. */ int opterr = 1, /* if error message should be printed */ optind = 1, /* index into parent argv vector */ optopt, /* character checked for validity */ optreset; /* reset getopt */ char *optarg; /* argument associated with option */ #undef BADCH #define BADCH (int)'?' #undef BADARG #define BADARG (int)':' #undef EMSG #define EMSG "" /* * getopt -- * Parse argc/argv argument vector. * * PUBLIC: #ifndef HAVE_GETOPT * PUBLIC: int getopt __P((int, char * const *, const char *)); * PUBLIC: #endif */ int getopt(nargc, nargv, ostr) int nargc; char * const *nargv; const char *ostr; { static char *progname; static char *place = EMSG; /* option letter processing */ char *oli; /* option letter list index */ /* * VxWorks needs to be able to repeatedly call getopt from multiple * programs within its global name space. */ if (__db_getopt_reset) { __db_getopt_reset = 0; opterr = optind = 1; optopt = optreset = 0; optarg = NULL; progname = NULL; place = EMSG; } if (!progname) { if ((progname = __db_rpath(*nargv)) == NULL) progname = *nargv; else ++progname; } if (optreset || !*place) { /* update scanning pointer */ optreset = 0; if (optind >= nargc || *(place = nargv[optind]) != '-') { place = EMSG; return (EOF); } if (place[1] && *++place == '-') { /* found "--" */ ++optind; place = EMSG; return (EOF); } } /* option letter okay? */ if ((optopt = (int)*place++) == (int)':' || !(oli = strchr(ostr, optopt))) { /* * if the user didn't specify '-' as an option, * assume it means EOF. */ if (optopt == (int)'-') return (EOF); if (!*place) ++optind; if (opterr && *ostr != ':') (void)fprintf(stderr, "%s: illegal option -- %c\n", progname, optopt); return (BADCH); } if (*++oli != ':') { /* don't need argument */ optarg = NULL; if (!*place) ++optind; } else { /* need an argument */ if (*place) /* no white space */ optarg = place; else if (nargc <= ++optind) { /* no arg */ place = EMSG; if (*ostr == ':') return (BADARG); if (opterr) (void)fprintf(stderr, "%s: option requires an argument -- %c\n", progname, optopt); return (BADCH); } else /* white space */ optarg = nargv[optind]; place = EMSG; ++optind; } return (optopt); /* dump back option letter */ }