1 /*- 2 * Copyright (c) 2011 Tim Kientzle 3 * 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 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "archive_platform.h" 27 __FBSDID("$FreeBSD$"); 28 29 #include "archive_read_private.h" 30 #include "archive_options_private.h" 31 32 static int archive_set_format_option(struct archive *a, 33 const char *m, const char *o, const char *v); 34 static int archive_set_filter_option(struct archive *a, 35 const char *m, const char *o, const char *v); 36 static int archive_set_option(struct archive *a, 37 const char *m, const char *o, const char *v); 38 39 int 40 archive_read_set_format_option(struct archive *a, const char *m, const char *o, 41 const char *v) 42 { 43 return _archive_set_option(a, m, o, v, 44 ARCHIVE_READ_MAGIC, "archive_read_set_format_option", 45 archive_set_format_option); 46 } 47 48 int 49 archive_read_set_filter_option(struct archive *a, const char *m, const char *o, 50 const char *v) 51 { 52 return _archive_set_option(a, m, o, v, 53 ARCHIVE_READ_MAGIC, "archive_read_set_filter_option", 54 archive_set_filter_option); 55 } 56 57 int 58 archive_read_set_option(struct archive *a, const char *m, const char *o, 59 const char *v) 60 { 61 return _archive_set_option(a, m, o, v, 62 ARCHIVE_READ_MAGIC, "archive_read_set_option", 63 archive_set_option); 64 } 65 66 int 67 archive_read_set_options(struct archive *a, const char *options) 68 { 69 return _archive_set_options(a, options, 70 ARCHIVE_READ_MAGIC, "archive_read_set_options", 71 archive_set_option); 72 } 73 74 static int 75 archive_set_format_option(struct archive *_a, const char *m, const char *o, 76 const char *v) 77 { 78 struct archive_read *a = (struct archive_read *)_a; 79 size_t i; 80 int r, rv = ARCHIVE_WARN, matched_modules = 0; 81 82 for (i = 0; i < sizeof(a->formats)/sizeof(a->formats[0]); i++) { 83 struct archive_format_descriptor *format = &a->formats[i]; 84 85 if (format->options == NULL || format->name == NULL) 86 /* This format does not support option. */ 87 continue; 88 if (m != NULL) { 89 if (strcmp(format->name, m) != 0) 90 continue; 91 ++matched_modules; 92 } 93 94 a->format = format; 95 r = format->options(a, o, v); 96 a->format = NULL; 97 98 if (r == ARCHIVE_FATAL) 99 return (ARCHIVE_FATAL); 100 101 if (r == ARCHIVE_OK) 102 rv = ARCHIVE_OK; 103 } 104 /* If the format name didn't match, return a special code for 105 * _archive_set_option[s]. */ 106 if (m != NULL && matched_modules == 0) 107 return ARCHIVE_WARN - 1; 108 return (rv); 109 } 110 111 static int 112 archive_set_filter_option(struct archive *_a, const char *m, const char *o, 113 const char *v) 114 { 115 struct archive_read *a = (struct archive_read *)_a; 116 struct archive_read_filter *filter; 117 struct archive_read_filter_bidder *bidder; 118 int r, rv = ARCHIVE_WARN, matched_modules = 0; 119 120 for (filter = a->filter; filter != NULL; filter = filter->upstream) { 121 bidder = filter->bidder; 122 if (bidder == NULL) 123 continue; 124 if (bidder->options == NULL) 125 /* This bidder does not support option */ 126 continue; 127 if (m != NULL) { 128 if (strcmp(filter->name, m) != 0) 129 continue; 130 ++matched_modules; 131 } 132 133 r = bidder->options(bidder, o, v); 134 135 if (r == ARCHIVE_FATAL) 136 return (ARCHIVE_FATAL); 137 138 if (r == ARCHIVE_OK) 139 rv = ARCHIVE_OK; 140 } 141 /* If the filter name didn't match, return a special code for 142 * _archive_set_option[s]. */ 143 if (m != NULL && matched_modules == 0) 144 return ARCHIVE_WARN - 1; 145 return (rv); 146 } 147 148 static int 149 archive_set_option(struct archive *a, const char *m, const char *o, 150 const char *v) 151 { 152 return _archive_set_either_option(a, m, o, v, 153 archive_set_format_option, 154 archive_set_filter_option); 155 } 156