/* * 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. 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. */ /* last review : october 29th, 2002 */ #if defined(LIBC_SCCS) && !defined(lint) static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95"; #endif /* LIBC_SCCS and not lint */ #include #include #include int opterr = 1, /* if error message should be printed */ optind = 1, /* index into parent argv vector */ optopt, /* character checked for validity */ optreset; /* reset getopt */ const char *optarg; /* argument associated with option */ typedef struct option { char *name; int has_arg; int *flag; int val; }option_t; #define BADCH (int)'?' #define BADARG (int)':' #define EMSG "" /* * getopt -- * Parse argc/argv argument vector. */ int getopt(int nargc, char *const *nargv, const char *ostr) { # define __progname nargv[0] static const char *place = EMSG; /* option letter processing */ char *oli; /* option letter list index */ if (optreset || !*place) { /* update scanning pointer */ optreset = 0; if (optind >= nargc || *(place = nargv[optind]) != '-') { place = EMSG; return (-1); } if (place[1] && *++place == '-') { /* found "--" */ ++optind; place = EMSG; return (-1); } } /* option letter okay? */ if ((optopt = (int) *place++) == (int) ':' || !(oli = strchr(ostr, optopt))) { /* * if the user didn't specify '-' as an option, * assume it means -1. */ if (optopt == (int) '-') return (-1); if (!*place) ++optind; if (opterr && *ostr != ':') { 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) { 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 */ } int getopt_long(int argc, char * const argv[], const char *optstring, struct option *longopts, int totlen) { static int lastidx,lastofs; char *tmp; int i,len; again: if (optind>argc || !argv[optind] || *argv[optind]!='-' || argv[optind][1]==0) return -1; if (argv[optind][0]=='-' && argv[optind][1]==0) { ++optind; return (BADCH); } if (argv[optind][0]=='-') { /* long option */ char* arg=argv[optind]+1; const struct option* o; o=longopts; len=sizeof(longopts[0]); if(strlen(arg)>1){ for (i=0;iname,arg)) { /* match */ if (o->has_arg == 0) { if (!(argv[optind+1][0]=='-')){ fprintf(stderr,"%s: option does not require an argument. Ignoring %s\n",arg,argv[optind+1]); ++optind; } }else{ optarg=argv[optind+1]; if(optarg){ if (optarg[0] == '-'){ /* Has read next input parameter: No arg for current parameter */ if (opterr) { fprintf(stderr,"%s: option requires an argument\n",arg); return (BADCH); } } } if (!optarg && o->has_arg==1) { /* no argument there */ if (opterr) { fprintf(stderr,"%s: option requires an argument \n",arg); return (BADCH); } } ++optind; } ++optind; if (o->flag) *(o->flag)=o->val; else return o->val; return 0; } }//(end for)String not found in the list fprintf(stderr,"Invalid option %s\n",arg); ++optind; return (BADCH); }else{ /*Single character input parameter*/ if (*optstring==':') return ':'; if (lastidx!=optind) { lastidx=optind; lastofs=0; } optopt=argv[optind][lastofs+1]; if ((tmp=strchr(optstring,optopt))) {/*Found input parameter in list*/ if (*tmp==0) { /* apparently, we looked for \0, i.e. end of argument */ ++optind; goto again; } if (tmp[1]==':') { /* argument expected */ if (tmp[2]==':' || argv[optind][lastofs+2]) { /* "-foo", return "oo" as optarg */ if (!*(optarg=argv[optind]+lastofs+2)) optarg=0; goto found; } optarg=argv[optind+1]; if(optarg){ if (optarg[0] == '-'){ /* Has read next input parameter: No arg for current parameter */ if (opterr) { fprintf(stderr,"%s: option requires an argument\n",arg); return (BADCH); } } } if (!optarg) { /* missing argument */ if (opterr) { fprintf(stderr,"%s: option requires an argument\n",arg); return (BADCH); } } ++optind; }else {/*Argument not expected*/ ++lastofs; return optopt; } found: ++optind; return optopt; } else { /* not found */ fprintf(stderr,"Invalid option %s\n",arg); ++optind; return (BADCH); }//end of not found }// end of single character }//end '-' fprintf(stderr,"Invalid option %s\n"); ++optind; return (BADCH);; }//end function