cnvlist.c revision 1.1
1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2016 Adam Starak <starak.adam (at) gmail.com> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/contrib/libnv/cnvlist.c 335343 2018-06-18 21:26:58Z oshogbo $ 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD: head/sys/contrib/libnv/cnvlist.c 335343 2018-06-18 21:26:58Z oshogbo $"); 33 34 #ifdef _KERNEL 35 36 #include <sys/types.h> 37 #include <sys/param.h> 38 #include <sys/kernel.h> 39 #include <sys/systm.h> 40 #include <sys/malloc.h> 41 42 #include <machine/stdarg.h> 43 44 #else 45 #include <stdarg.h> 46 #include <stdbool.h> 47 #include <stdint.h> 48 #include <stdlib.h> 49 #endif 50 51 #include <sys/cnv.h> 52 #include <sys/nv.h> 53 54 #include "nv_impl.h" 55 #include "nvlist_impl.h" 56 #include "nvpair_impl.h" 57 58 const char * 59 cnvlist_name(const void *cookie) 60 { 61 62 return (nvpair_name(cookie)); 63 } 64 65 int 66 cnvlist_type(const void *cookie) 67 { 68 69 return (nvpair_type(cookie)); 70 } 71 72 #define CNVLIST_GET(ftype, type, NVTYPE) \ 73 ftype \ 74 cnvlist_get_##type(const void *cookie) \ 75 { \ 76 \ 77 if (nvpair_type(cookie) != NV_TYPE_##NVTYPE) { \ 78 nvlist_report_missing(NV_TYPE_##NVTYPE, \ 79 nvpair_name(cookie)); \ 80 } \ 81 return (nvpair_get_##type(cookie)); \ 82 } 83 84 CNVLIST_GET(bool, bool, BOOL) 85 CNVLIST_GET(uint64_t, number, NUMBER) 86 CNVLIST_GET(const char *, string, STRING) 87 CNVLIST_GET(const nvlist_t *, nvlist, NVLIST) 88 #ifndef _KERNEL 89 CNVLIST_GET(int, descriptor, DESCRIPTOR) 90 #endif 91 92 #undef CNVLIST_GET 93 94 #define CNVLIST_GET_ARRAY(ftype, type, NVTYPE) \ 95 ftype \ 96 cnvlist_get_##type(const void *cookie, size_t *nitemsp) \ 97 { \ 98 \ 99 if (nvpair_type(cookie) != NV_TYPE_##NVTYPE) { \ 100 nvlist_report_missing(NV_TYPE_##NVTYPE, \ 101 nvpair_name(cookie)); \ 102 } \ 103 return (nvpair_get_##type(cookie, nitemsp)); \ 104 } 105 106 CNVLIST_GET_ARRAY(const bool *, bool_array, BOOL_ARRAY) 107 CNVLIST_GET_ARRAY(const uint64_t *, number_array, NUMBER_ARRAY) 108 CNVLIST_GET_ARRAY(const char * const *, string_array, STRING_ARRAY) 109 CNVLIST_GET_ARRAY(const nvlist_t * const *, nvlist_array, NVLIST_ARRAY) 110 #ifndef _KERNEL 111 CNVLIST_GET_ARRAY(const int *, descriptor_array, DESCRIPTOR_ARRAY) 112 #endif 113 114 #undef CNVLIST_GET_ARRAY 115 116 const void * 117 cnvlist_get_binary(const void *cookie, size_t *sizep) 118 { 119 120 if (nvpair_type(cookie) != NV_TYPE_BINARY) 121 nvlist_report_missing(NV_TYPE_BINARY, nvpair_name(cookie)); 122 return (nvpair_get_binary(cookie, sizep)); 123 } 124 125 #define CNVLIST_TAKE(ftype, type, NVTYPE) \ 126 ftype \ 127 cnvlist_take_##type(void *cookie) \ 128 { \ 129 ftype value; \ 130 nvlist_t *nvl; \ 131 \ 132 if (nvpair_type(cookie) != NV_TYPE_##NVTYPE) { \ 133 nvlist_report_missing(NV_TYPE_##NVTYPE, \ 134 nvpair_name(cookie)); \ 135 } \ 136 nvl = nvpair_nvlist(cookie); \ 137 value = (ftype)(intptr_t)nvpair_get_##type(cookie); \ 138 nvlist_remove_nvpair(nvl, cookie); \ 139 nvpair_free_structure(cookie); \ 140 return (value); \ 141 } 142 143 CNVLIST_TAKE(bool, bool, BOOL) 144 CNVLIST_TAKE(uint64_t, number, NUMBER) 145 CNVLIST_TAKE(char *, string, STRING) 146 CNVLIST_TAKE(nvlist_t *, nvlist, NVLIST) 147 #ifndef _KERNEL 148 CNVLIST_TAKE(int, descriptor, DESCRIPTOR) 149 #endif 150 151 #undef CNVLIST_TAKE 152 153 #define CNVLIST_TAKE_ARRAY(ftype, type, NVTYPE) \ 154 ftype \ 155 cnvlist_take_##type(void *cookie, size_t *nitemsp) \ 156 { \ 157 ftype value; \ 158 nvlist_t *nvl; \ 159 \ 160 if (nvpair_type(cookie) != NV_TYPE_##NVTYPE) { \ 161 nvlist_report_missing(NV_TYPE_##NVTYPE, \ 162 nvpair_name(cookie)); \ 163 } \ 164 nvl = nvpair_nvlist(cookie); \ 165 value = (ftype)(intptr_t)nvpair_get_##type(cookie, nitemsp); \ 166 nvlist_remove_nvpair(nvl, cookie); \ 167 nvpair_free_structure(cookie); \ 168 return (value); \ 169 } 170 171 CNVLIST_TAKE_ARRAY(bool *, bool_array, BOOL_ARRAY) 172 CNVLIST_TAKE_ARRAY(uint64_t *, number_array, NUMBER_ARRAY) 173 CNVLIST_TAKE_ARRAY(char **, string_array, STRING_ARRAY) 174 CNVLIST_TAKE_ARRAY(nvlist_t **, nvlist_array, NVLIST_ARRAY) 175 #ifndef _KERNEL 176 CNVLIST_TAKE_ARRAY(int *, descriptor_array, DESCRIPTOR_ARRAY); 177 #endif 178 179 #undef CNVLIST_TAKE_ARRAY 180 181 void * 182 cnvlist_take_binary(void *cookie, size_t *sizep) 183 { 184 void *value; 185 nvlist_t *nvl; 186 187 if (nvpair_type(cookie) != NV_TYPE_BINARY) 188 nvlist_report_missing(NV_TYPE_BINARY, nvpair_name(cookie)); 189 nvl = nvpair_nvlist(cookie); 190 value = (void *)(intptr_t)nvpair_get_binary(cookie, sizep); 191 nvlist_remove_nvpair(nvl, cookie); 192 nvpair_free_structure(cookie); 193 return (value); 194 } 195 196 197 #define CNVLIST_FREE(type) \ 198 void \ 199 cnvlist_free_##type(void *cookie) \ 200 { \ 201 \ 202 nvlist_free_nvpair(nvpair_nvlist(cookie), cookie); \ 203 } 204 205 CNVLIST_FREE(bool) 206 CNVLIST_FREE(number) 207 CNVLIST_FREE(string) 208 CNVLIST_FREE(nvlist) 209 CNVLIST_FREE(binary); 210 CNVLIST_FREE(bool_array) 211 CNVLIST_FREE(number_array) 212 CNVLIST_FREE(string_array) 213 CNVLIST_FREE(nvlist_array) 214 #ifndef _KERNEL 215 CNVLIST_FREE(descriptor) 216 CNVLIST_FREE(descriptor_array) 217 #endif 218 219 #undef CNVLIST_FREE 220
Indexes created Wed Oct 01 15:09:59 GMT 2025