The Tor Browser / file comparison
comparison: tools/trace-malloc/getopt.c
tools/trace-malloc/getopt.c
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:105dead56988 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 /* | |
| 6 * Copyright (c) 1987 Regents of the University of California. | |
| 7 * All rights reserved. | |
| 8 * | |
| 9 * Redistribution and use in source and binary forms are permitted | |
| 10 * provided that: (1) source distributions retain this entire copyright | |
| 11 * notice and comment, and (2) distributions including binaries display | |
| 12 * the following acknowledgement: ``This product includes software | |
| 13 * developed by the University of California, Berkeley and its contributors'' | |
| 14 * in the documentation or other materials provided with the distribution | |
| 15 * and in all advertising materials mentioning features or use of this | |
| 16 * software. Neither the name of the University nor the names of its | |
| 17 * contributors may be used to endorse or promote products derived | |
| 18 * from this software without specific prior written permission. | |
| 19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 20 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 22 */ | |
| 23 | |
| 24 #if defined(LIBC_SCCS) && !defined(lint) | |
| 25 static char sccsid[] = "@(#)getopt.c 4.12 (Berkeley) 6/1/90"; | |
| 26 #endif /* LIBC_SCCS and not lint */ | |
| 27 | |
| 28 #include <stdio.h> | |
| 29 #include <string.h> | |
| 30 #define index strchr | |
| 31 #define rindex strrchr | |
| 32 | |
| 33 /* | |
| 34 * get option letter from argument vector | |
| 35 */ | |
| 36 int opterr = 1, /* if error message should be printed */ | |
| 37 optind = 1, /* index into parent argv vector */ | |
| 38 optopt; /* character checked for validity */ | |
| 39 char *optarg; /* argument associated with option */ | |
| 40 | |
| 41 #define BADCH (int)'?' | |
| 42 #define EMSG "" | |
| 43 | |
| 44 int getopt(int nargc, char **nargv, char *ostr) | |
| 45 { | |
| 46 static char *place = EMSG; /* option letter processing */ | |
| 47 register char *oli; /* option letter list index */ | |
| 48 char *p; | |
| 49 | |
| 50 if (!*place) { /* update scanning pointer */ | |
| 51 if (optind >= nargc || *(place = nargv[optind]) != '-') { | |
| 52 place = EMSG; | |
| 53 return(EOF); | |
| 54 } | |
| 55 if (place[1] && *++place == '-') { /* found "--" */ | |
| 56 ++optind; | |
| 57 place = EMSG; | |
| 58 return(EOF); | |
| 59 } | |
| 60 } /* option letter okay? */ | |
| 61 if ((optopt = (int)*place++) == (int)':' || | |
| 62 !(oli = index(ostr, optopt))) { | |
| 63 /* | |
| 64 * if the user didn't specify '-' as an option, | |
| 65 * assume it means EOF. | |
| 66 */ | |
| 67 if (optopt == (int)'-') | |
| 68 return(EOF); | |
| 69 if (!*place) | |
| 70 ++optind; | |
| 71 if (opterr) { | |
| 72 if (!(p = rindex(*nargv, '/'))) | |
| 73 p = *nargv; | |
| 74 else | |
| 75 ++p; | |
| 76 (void)fprintf(stderr, "%s: illegal option -- %c\n", | |
| 77 p, optopt); | |
| 78 } | |
| 79 return(BADCH); | |
| 80 } | |
| 81 if (*++oli != ':') { /* don't need argument */ | |
| 82 optarg = NULL; | |
| 83 if (!*place) | |
| 84 ++optind; | |
| 85 } | |
| 86 else { /* need an argument */ | |
| 87 if (*place) /* no white space */ | |
| 88 optarg = place; | |
| 89 else if (nargc <= ++optind) { /* no arg */ | |
| 90 place = EMSG; | |
| 91 if (!(p = rindex(*nargv, '/'))) | |
| 92 p = *nargv; | |
| 93 else | |
| 94 ++p; | |
| 95 if (opterr) | |
| 96 (void)fprintf(stderr, | |
| 97 "%s: option requires an argument -- %c\n", | |
| 98 p, optopt); | |
| 99 return(BADCH); | |
| 100 } | |
| 101 else /* white space */ | |
| 102 optarg = nargv[optind]; | |
| 103 place = EMSG; | |
| 104 ++optind; | |
| 105 } | |
| 106 return(optopt); /* dump back option letter */ | |
| 107 } |
