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 struct archive_format_descriptor *format; 80 size_t i; 81 int r, rv = ARCHIVE_FAILED; 82 83 for (i = 0; i < sizeof(a->formats)/sizeof(a->formats[0]); i++) { 84 format = &a->formats[i]; 85 if (format == NULL || format->options == NULL || 86 format->name == NULL) 87 /* This format does not support option. */ 88 continue; 89 if (m != NULL && strcmp(format->name, m) != 0) 90 continue; 91 92 a->format = format; 93 r = format->options(a, o, v); 94 a->format = NULL; 95 96 if (r == ARCHIVE_FATAL) 97 return (ARCHIVE_FATAL); 98 99 if (m != NULL) 100 return (r); 101 102 if (r == ARCHIVE_OK) 103 rv = ARCHIVE_OK; 104 } 105 return (rv); 106 } 107 108 static int 109 archive_set_filter_option(struct archive *_a, const char *m, const char *o, 110 const char *v) 111 { 112 struct archive_read *a = (struct archive_read *)_a; 113 struct archive_read_filter *filter; 114 struct archive_read_filter_bidder *bidder; 115 int r, rv = ARCHIVE_FAILED; 116 117 for (filter = a->filter; filter != NULL; filter = filter->upstream) { 118 bidder = filter->bidder; 119 if (bidder == NULL) 120 continue; 121 if (bidder->options == NULL) 122 /* This bidder does not support option */ 123 continue; 124 if (m != NULL && strcmp(filter->name, m) != 0) 125 continue; 126 127 r = bidder->options(bidder, o, v); 128 129 if (r == ARCHIVE_FATAL) 130 return (ARCHIVE_FATAL); 131 132 if (m != NULL) 133 return (r); 134 135 if (r == ARCHIVE_OK) 136 rv = ARCHIVE_OK; 137 } 138 return (rv); 139 } 140 141 static int 142 archive_set_option(struct archive *a, const char *m, const char *o, 143 const char *v) 144 { 145 return _archive_set_either_option(a, m, o, v, 146 archive_set_format_option, 147 archive_set_filter_option); 148 } 149