tools/trace-malloc/getopt.c@97036ab72558
tools/trace-malloc/getopt.c
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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 */
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 */
28 #include <stdio.h>
29 #include <string.h>
30 #define index strchr
31 #define rindex strrchr
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 */
41 #define BADCH (int)'?'
42 #define EMSG ""
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;
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 }
