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 28 #include "archive_read_private.h" 29 #include "archive_options_private.h" 30 31 static int archive_set_format_option(struct archive *a, 32 const char *m, const char *o, const char *v); 33 static int archive_set_filter_option(struct archive *a, 34 const char *m, const char *o, const char *v); 35 static int archive_set_option(struct archive *a, 36 const char *m, const char *o, const char *v); 37 38 int 39 archive_read_set_format_option(struct archive *a, const char *m, const char *o, 40 const char *v) 41 { 42 return _archive_set_option(a, m, o, v, 43 ARCHIVE_READ_MAGIC, "archive_read_set_format_option", 44 archive_set_format_option); 45 } 46 47 int 48 archive_read_set_filter_option(struct archive *a, const char *m, const char *o, 49 const char *v) 50 { 51 return _archive_set_option(a, m, o, v, 52 ARCHIVE_READ_MAGIC, "archive_read_set_filter_option", 53 archive_set_filter_option); 54 } 55 56 int 57 archive_read_set_option(struct archive *a, const char *m, const char *o, 58 const char *v) 59 { 60 return _archive_set_option(a, m, o, v, 61 ARCHIVE_READ_MAGIC, "archive_read_set_option", 62 archive_set_option); 63 } 64 65 int 66 archive_read_set_options(struct archive *a, const char *options) 67 { 68 return _archive_set_options(a, options, 69 ARCHIVE_READ_MAGIC, "archive_read_set_options", 70 archive_set_option); 71 } 72 73 static int 74 archive_set_format_option(struct archive *_a, const char *m, const char *o, 75 const char *v) 76 { 77 struct archive_read *a = (struct archive_read *)_a; 78 size_t i; 79 int r, rv = ARCHIVE_WARN, matched_modules = 0; 80 81 for (i = 0; i < sizeof(a->formats)/sizeof(a->formats[0]); i++) { 82 struct archive_format_descriptor *format = &a->formats[i]; 83 84 if (format->options == NULL || format->name == NULL) 85 /* This format does not support option. */ 86 continue; 87 if (m != NULL) { 88 if (strcmp(format->name, m) != 0) 89 continue; 90 ++matched_modules; 91 } 92 93 a->format = format; 94 r = format->options(a, o, v); 95 a->format = NULL; 96 97 if (r == ARCHIVE_FATAL) 98 return (ARCHIVE_FATAL); 99 100 if (r == ARCHIVE_OK) 101 rv = ARCHIVE_OK; 102 } 103 /* If the format name didn't match, return a special code for 104 * _archive_set_option[s]. */ 105 if (m != NULL && matched_modules == 0) 106 return ARCHIVE_WARN - 1; 107 return (rv); 108 } 109 110 static int 111 archive_set_filter_option(struct archive *_a, const char *m, const char *o, 112 const char *v) 113 { 114 (void)_a; /* UNUSED */ 115 (void)o; /* UNUSED */ 116 (void)v; /* UNUSED */ 117 118 /* If the filter name didn't match, return a special code for 119 * _archive_set_option[s]. */ 120 if (m != NULL) 121 return ARCHIVE_WARN - 1; 122 return ARCHIVE_WARN; 123 } 124 125 static int 126 archive_set_option(struct archive *a, const char *m, const char *o, 127 const char *v) 128 { 129 return _archive_set_either_option(a, m, o, v, 130 archive_set_format_option, 131 archive_set_filter_option); 132 } 133