1/* 2 * Copyright (c) 1987, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 21 unchanged lines hidden (view full) --- 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#if defined(LIBC_SCCS) && !defined(lint) 35static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95"; 36#endif /* LIBC_SCCS and not lint */ 37#include <sys/cdefs.h> |
38__FBSDID("$FreeBSD: head/lib/libc/stdlib/getopt.c 93399 2002-03-29 22:43:43Z markm $"); |
39 |
40#include "namespace.h" |
41#include <stdio.h> 42#include <stdlib.h> 43#include <string.h> |
44#include "un-namespace.h" |
45 |
46#include "libc_private.h" 47 |
48int opterr = 1, /* if error message should be printed */ 49 optind = 1, /* index into parent argv vector */ 50 optopt, /* character checked for validity */ 51 optreset; /* reset getopt */ 52char *optarg; /* argument associated with option */ 53 54#define BADCH (int)'?' 55#define BADARG (int)':' --- 4 unchanged lines hidden (view full) --- 60 * Parse argc/argv argument vector. 61 */ 62int 63getopt(nargc, nargv, ostr) 64 int nargc; 65 char * const *nargv; 66 const char *ostr; 67{ |
68 static char *place = EMSG; /* option letter processing */ 69 char *oli; /* option letter list index */ 70 71 if (optreset || !*place) { /* update scanning pointer */ 72 optreset = 0; 73 if (optind >= nargc || *(place = nargv[optind]) != '-') { 74 place = EMSG; 75 return (-1); --- 10 unchanged lines hidden (view full) --- 86 * if the user didn't specify '-' as an option, 87 * assume it means -1. 88 */ 89 if (optopt == (int)'-') 90 return (-1); 91 if (!*place) 92 ++optind; 93 if (opterr && *ostr != ':' && optopt != BADCH) |
94 (void)fprintf(stderr, "%s: illegal option -- %c\n", 95 _getprogname(), optopt); |
96 return (BADCH); 97 } 98 if (*++oli != ':') { /* don't need argument */ 99 optarg = NULL; 100 if (!*place) 101 ++optind; 102 } 103 else { /* need an argument */ 104 if (*place) /* no white space */ 105 optarg = place; 106 else if (nargc <= ++optind) { /* no arg */ 107 place = EMSG; 108 if (*ostr == ':') 109 return (BADARG); 110 if (opterr) 111 (void)fprintf(stderr, 112 "%s: option requires an argument -- %c\n", |
113 _getprogname(), optopt); |
114 return (BADCH); 115 } 116 else /* white space */ 117 optarg = nargv[optind]; 118 place = EMSG; 119 ++optind; 120 } 121 return (optopt); /* dump back option letter */ 122} |