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| 1 | +/* This is used by psql under MS Win */ |
| 2 | + |
| 3 | +/* |
| 4 | + * Copyright (c) 1987, 1993, 1994 |
| 5 | + * The Regents of the University of California. All rights reserved. |
| 6 | + * |
| 7 | + * Redistribution and use in source and binary forms, with or without |
| 8 | + * modification, are permitted provided that the following conditions |
| 9 | + * are met: |
| 10 | + * 1. Redistributions of source code must retain the above copyright |
| 11 | + * notice, this list of conditions and the following disclaimer. |
| 12 | + * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | + * notice, this list of conditions and the following disclaimer in the |
| 14 | + * documentation and/or other materials provided with the distribution. |
| 15 | + * 3. All advertising materials mentioning features or use of this software |
| 16 | + * must display the following acknowledgement: |
| 17 | + * This product includes software developed by the University of |
| 18 | + * California, Berkeley and its contributors. |
| 19 | + * 4. Neither the name of the University nor the names of its contributors |
| 20 | + * may be used to endorse or promote products derived from this software |
| 21 | + * without specific prior written permission. |
| 22 | + * |
| 23 | + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| 24 | + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 25 | + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 26 | + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| 27 | + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 28 | + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 29 | + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 30 | + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 31 | + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 32 | + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 33 | + * SUCH DAMAGE. |
| 34 | + */ |
| 35 | + |
| 36 | +#if defined(LIBC_SCCS) && !defined(lint) |
| 37 | +static char sccsid[] = "@(#)getopt.c 8.3 (Berkeley) 4/27/95"; |
| 38 | +#endif /* LIBC_SCCS and not lint */ |
| 39 | + |
| 40 | +#include <stdio.h> |
| 41 | +#include <stdlib.h> |
| 42 | +#include <string.h> |
| 43 | + |
| 44 | +int opterr = 1, /* if error message should be printed */ |
| 45 | + optind = 1, /* index into parent argv vector */ |
| 46 | + optopt, /* character checked for validity */ |
| 47 | + optreset; /* reset getopt */ |
| 48 | +char *optarg; /* argument associated with option */ |
| 49 | + |
| 50 | +#define BADCH (int)'?' |
| 51 | +#define BADARG (int)':' |
| 52 | +#define EMSG "" |
| 53 | + |
| 54 | +/* |
| 55 | + * getopt |
| 56 | + * Parse argc/argv argument vector. |
| 57 | + */ |
| 58 | +int |
| 59 | +getopt(nargc, nargv, ostr) |
| 60 | +int nargc; |
| 61 | +char *const * nargv; |
| 62 | +const char *ostr; |
| 63 | +{ |
| 64 | + extern char *__progname; |
| 65 | + static char *place = EMSG; /* option letter processing */ |
| 66 | + char *oli; /* option letter list index */ |
| 67 | + |
| 68 | + if (optreset || !*place) |
| 69 | + { /* update scanning pointer */ |
| 70 | + optreset = 0; |
| 71 | + if (optind >= nargc || *(place = nargv[optind]) != '-') |
| 72 | + { |
| 73 | + place = EMSG; |
| 74 | + return -1; |
| 75 | + } |
| 76 | + if (place[1] && *++place == '-' && place[1] == '\0') |
| 77 | + { /* found "--" */ |
| 78 | + ++optind; |
| 79 | + place = EMSG; |
| 80 | + return -1; |
| 81 | + } |
| 82 | + } /* option letter okay? */ |
| 83 | + if ((optopt = (int) *place++) == (int) ':' || |
| 84 | + !(oli = strchr(ostr, optopt))) |
| 85 | + { |
| 86 | + /* |
| 87 | + * if the user didn't specify '-' as an option, assume it means |
| 88 | + * -1. |
| 89 | + */ |
| 90 | + if (optopt == (int) '-') |
| 91 | + return -1; |
| 92 | + if (!*place) |
| 93 | + ++optind; |
| 94 | + if (opterr && *ostr != ':') |
| 95 | + (void) fprintf(stderr, |
| 96 | + "%s: illegal option -- %c\n", __progname, optopt); |
| 97 | + return BADCH; |
| 98 | + } |
| 99 | + if (*++oli != ':') |
| 100 | + { /* don't need argument */ |
| 101 | + optarg = NULL; |
| 102 | + if (!*place) |
| 103 | + ++optind; |
| 104 | + } |
| 105 | + else |
| 106 | + { /* need an argument */ |
| 107 | + if (*place) /* no white space */ |
| 108 | + optarg = place; |
| 109 | + else if (nargc <= ++optind) |
| 110 | + { /* no arg */ |
| 111 | + place = EMSG; |
| 112 | + if (*ostr == ':') |
| 113 | + return BADARG; |
| 114 | + if (opterr) |
| 115 | + (void) fprintf(stderr, |
| 116 | + "%s: option requires an argument -- %c\n", |
| 117 | + __progname, optopt); |
| 118 | + return BADCH; |
| 119 | + } |
| 120 | + else |
| 121 | +/* white space */ |
| 122 | + optarg = nargv[optind]; |
| 123 | + place = EMSG; |
| 124 | + ++optind; |
| 125 | + } |
| 126 | + return optopt; /* dump back option letter */ |
| 127 | +} |
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