apfiles.c revision 1.2.10.3
1 1.2.10.2 tls /****************************************************************************** 2 1.2.10.2 tls * 3 1.2.10.2 tls * Module Name: apfiles - File-related functions for acpidump utility 4 1.2.10.2 tls * 5 1.2.10.2 tls *****************************************************************************/ 6 1.2.10.2 tls 7 1.2.10.2 tls /* 8 1.2.10.3 jdolecek * Copyright (C) 2000 - 2017, Intel Corp. 9 1.2.10.2 tls * All rights reserved. 10 1.2.10.2 tls * 11 1.2.10.2 tls * Redistribution and use in source and binary forms, with or without 12 1.2.10.2 tls * modification, are permitted provided that the following conditions 13 1.2.10.2 tls * are met: 14 1.2.10.2 tls * 1. Redistributions of source code must retain the above copyright 15 1.2.10.2 tls * notice, this list of conditions, and the following disclaimer, 16 1.2.10.2 tls * without modification. 17 1.2.10.2 tls * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 1.2.10.2 tls * substantially similar to the "NO WARRANTY" disclaimer below 19 1.2.10.2 tls * ("Disclaimer") and any redistribution must be conditioned upon 20 1.2.10.2 tls * including a substantially similar Disclaimer requirement for further 21 1.2.10.2 tls * binary redistribution. 22 1.2.10.2 tls * 3. Neither the names of the above-listed copyright holders nor the names 23 1.2.10.2 tls * of any contributors may be used to endorse or promote products derived 24 1.2.10.2 tls * from this software without specific prior written permission. 25 1.2.10.2 tls * 26 1.2.10.2 tls * Alternatively, this software may be distributed under the terms of the 27 1.2.10.2 tls * GNU General Public License ("GPL") version 2 as published by the Free 28 1.2.10.2 tls * Software Foundation. 29 1.2.10.2 tls * 30 1.2.10.2 tls * NO WARRANTY 31 1.2.10.2 tls * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 1.2.10.2 tls * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 1.2.10.2 tls * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 1.2.10.2 tls * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 1.2.10.2 tls * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 1.2.10.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 1.2.10.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 1.2.10.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 1.2.10.2 tls * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 1.2.10.2 tls * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 1.2.10.2 tls * POSSIBILITY OF SUCH DAMAGES. 42 1.2.10.2 tls */ 43 1.2.10.2 tls 44 1.2.10.2 tls #include "acpidump.h" 45 1.2.10.3 jdolecek 46 1.2.10.3 jdolecek 47 1.2.10.3 jdolecek /* Local prototypes */ 48 1.2.10.3 jdolecek 49 1.2.10.3 jdolecek static int 50 1.2.10.3 jdolecek ApIsExistingFile ( 51 1.2.10.3 jdolecek char *Pathname); 52 1.2.10.2 tls 53 1.2.10.2 tls 54 1.2.10.2 tls /****************************************************************************** 55 1.2.10.2 tls * 56 1.2.10.3 jdolecek * FUNCTION: ApIsExistingFile 57 1.2.10.2 tls * 58 1.2.10.2 tls * PARAMETERS: Pathname - Output filename 59 1.2.10.2 tls * 60 1.2.10.3 jdolecek * RETURN: 0 on success 61 1.2.10.2 tls * 62 1.2.10.3 jdolecek * DESCRIPTION: Query for file overwrite if it already exists. 63 1.2.10.2 tls * 64 1.2.10.2 tls ******************************************************************************/ 65 1.2.10.2 tls 66 1.2.10.3 jdolecek static int 67 1.2.10.3 jdolecek ApIsExistingFile ( 68 1.2.10.2 tls char *Pathname) 69 1.2.10.2 tls { 70 1.2.10.3 jdolecek #if !defined(_GNU_EFI) && !defined(_EDK2_EFI) 71 1.2.10.2 tls struct stat StatInfo; 72 1.2.10.2 tls 73 1.2.10.2 tls 74 1.2.10.2 tls if (!stat (Pathname, &StatInfo)) 75 1.2.10.2 tls { 76 1.2.10.2 tls fprintf (stderr, "Target path already exists, overwrite? [y|n] "); 77 1.2.10.2 tls 78 1.2.10.2 tls if (getchar () != 'y') 79 1.2.10.2 tls { 80 1.2.10.2 tls return (-1); 81 1.2.10.2 tls } 82 1.2.10.2 tls } 83 1.2.10.3 jdolecek #endif 84 1.2.10.3 jdolecek 85 1.2.10.3 jdolecek return 0; 86 1.2.10.3 jdolecek } 87 1.2.10.3 jdolecek 88 1.2.10.3 jdolecek 89 1.2.10.3 jdolecek /****************************************************************************** 90 1.2.10.3 jdolecek * 91 1.2.10.3 jdolecek * FUNCTION: ApOpenOutputFile 92 1.2.10.3 jdolecek * 93 1.2.10.3 jdolecek * PARAMETERS: Pathname - Output filename 94 1.2.10.3 jdolecek * 95 1.2.10.3 jdolecek * RETURN: Open file handle 96 1.2.10.3 jdolecek * 97 1.2.10.3 jdolecek * DESCRIPTION: Open a text output file for acpidump. Checks if file already 98 1.2.10.3 jdolecek * exists. 99 1.2.10.3 jdolecek * 100 1.2.10.3 jdolecek ******************************************************************************/ 101 1.2.10.3 jdolecek 102 1.2.10.3 jdolecek int 103 1.2.10.3 jdolecek ApOpenOutputFile ( 104 1.2.10.3 jdolecek char *Pathname) 105 1.2.10.3 jdolecek { 106 1.2.10.3 jdolecek ACPI_FILE File; 107 1.2.10.3 jdolecek 108 1.2.10.3 jdolecek 109 1.2.10.3 jdolecek /* If file exists, prompt for overwrite */ 110 1.2.10.3 jdolecek 111 1.2.10.3 jdolecek if (ApIsExistingFile (Pathname) != 0) 112 1.2.10.3 jdolecek { 113 1.2.10.3 jdolecek return (-1); 114 1.2.10.3 jdolecek } 115 1.2.10.2 tls 116 1.2.10.2 tls /* Point stdout to the file */ 117 1.2.10.2 tls 118 1.2.10.3 jdolecek File = fopen (Pathname, "w"); 119 1.2.10.2 tls if (!File) 120 1.2.10.2 tls { 121 1.2.10.3 jdolecek fprintf (stderr, "Could not open output file: %s\n", Pathname); 122 1.2.10.2 tls return (-1); 123 1.2.10.2 tls } 124 1.2.10.2 tls 125 1.2.10.2 tls /* Save the file and path */ 126 1.2.10.2 tls 127 1.2.10.2 tls Gbl_OutputFile = File; 128 1.2.10.2 tls Gbl_OutputFilename = Pathname; 129 1.2.10.2 tls return (0); 130 1.2.10.2 tls } 131 1.2.10.2 tls 132 1.2.10.2 tls 133 1.2.10.2 tls /****************************************************************************** 134 1.2.10.2 tls * 135 1.2.10.2 tls * FUNCTION: ApWriteToBinaryFile 136 1.2.10.2 tls * 137 1.2.10.2 tls * PARAMETERS: Table - ACPI table to be written 138 1.2.10.2 tls * Instance - ACPI table instance no. to be written 139 1.2.10.2 tls * 140 1.2.10.2 tls * RETURN: Status 141 1.2.10.2 tls * 142 1.2.10.2 tls * DESCRIPTION: Write an ACPI table to a binary file. Builds the output 143 1.2.10.2 tls * filename from the table signature. 144 1.2.10.2 tls * 145 1.2.10.2 tls ******************************************************************************/ 146 1.2.10.2 tls 147 1.2.10.2 tls int 148 1.2.10.2 tls ApWriteToBinaryFile ( 149 1.2.10.2 tls ACPI_TABLE_HEADER *Table, 150 1.2.10.2 tls UINT32 Instance) 151 1.2.10.2 tls { 152 1.2.10.2 tls char Filename[ACPI_NAME_SIZE + 16]; 153 1.2.10.2 tls char InstanceStr [16]; 154 1.2.10.3 jdolecek ACPI_FILE File; 155 1.2.10.3 jdolecek ACPI_SIZE Actual; 156 1.2.10.2 tls UINT32 TableLength; 157 1.2.10.2 tls 158 1.2.10.2 tls 159 1.2.10.2 tls /* Obtain table length */ 160 1.2.10.2 tls 161 1.2.10.2 tls TableLength = ApGetTableLength (Table); 162 1.2.10.2 tls 163 1.2.10.2 tls /* Construct lower-case filename from the table local signature */ 164 1.2.10.2 tls 165 1.2.10.2 tls if (ACPI_VALIDATE_RSDP_SIG (Table->Signature)) 166 1.2.10.2 tls { 167 1.2.10.3 jdolecek ACPI_MOVE_NAME (Filename, ACPI_RSDP_NAME); 168 1.2.10.2 tls } 169 1.2.10.2 tls else 170 1.2.10.2 tls { 171 1.2.10.2 tls ACPI_MOVE_NAME (Filename, Table->Signature); 172 1.2.10.2 tls } 173 1.2.10.3 jdolecek 174 1.2.10.3 jdolecek Filename[0] = (char) tolower ((int) Filename[0]); 175 1.2.10.3 jdolecek Filename[1] = (char) tolower ((int) Filename[1]); 176 1.2.10.3 jdolecek Filename[2] = (char) tolower ((int) Filename[2]); 177 1.2.10.3 jdolecek Filename[3] = (char) tolower ((int) Filename[3]); 178 1.2.10.2 tls Filename[ACPI_NAME_SIZE] = 0; 179 1.2.10.2 tls 180 1.2.10.2 tls /* Handle multiple SSDTs - create different filenames for each */ 181 1.2.10.2 tls 182 1.2.10.2 tls if (Instance > 0) 183 1.2.10.2 tls { 184 1.2.10.3 jdolecek snprintf (InstanceStr, sizeof (InstanceStr), "%u", Instance); 185 1.2.10.2 tls strcat (Filename, InstanceStr); 186 1.2.10.2 tls } 187 1.2.10.2 tls 188 1.2.10.3 jdolecek strcat (Filename, FILE_SUFFIX_BINARY_TABLE); 189 1.2.10.2 tls 190 1.2.10.2 tls if (Gbl_VerboseMode) 191 1.2.10.2 tls { 192 1.2.10.2 tls fprintf (stderr, 193 1.2.10.2 tls "Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n", 194 1.2.10.2 tls Table->Signature, Filename, Table->Length, Table->Length); 195 1.2.10.2 tls } 196 1.2.10.2 tls 197 1.2.10.2 tls /* Open the file and dump the entire table in binary mode */ 198 1.2.10.2 tls 199 1.2.10.2 tls File = fopen (Filename, "wb"); 200 1.2.10.2 tls if (!File) 201 1.2.10.2 tls { 202 1.2.10.3 jdolecek fprintf (stderr, "Could not open output file: %s\n", Filename); 203 1.2.10.2 tls return (-1); 204 1.2.10.2 tls } 205 1.2.10.2 tls 206 1.2.10.2 tls Actual = fwrite (Table, 1, TableLength, File); 207 1.2.10.2 tls if (Actual != TableLength) 208 1.2.10.2 tls { 209 1.2.10.3 jdolecek fprintf (stderr, "Error writing binary output file: %s\n", Filename); 210 1.2.10.2 tls fclose (File); 211 1.2.10.2 tls return (-1); 212 1.2.10.2 tls } 213 1.2.10.2 tls 214 1.2.10.2 tls fclose (File); 215 1.2.10.2 tls return (0); 216 1.2.10.2 tls } 217 1.2.10.2 tls 218 1.2.10.2 tls 219 1.2.10.2 tls /****************************************************************************** 220 1.2.10.2 tls * 221 1.2.10.2 tls * FUNCTION: ApGetTableFromFile 222 1.2.10.2 tls * 223 1.2.10.2 tls * PARAMETERS: Pathname - File containing the binary ACPI table 224 1.2.10.2 tls * OutFileSize - Where the file size is returned 225 1.2.10.2 tls * 226 1.2.10.2 tls * RETURN: Buffer containing the ACPI table. NULL on error. 227 1.2.10.2 tls * 228 1.2.10.2 tls * DESCRIPTION: Open a file and read it entirely into a new buffer 229 1.2.10.2 tls * 230 1.2.10.2 tls ******************************************************************************/ 231 1.2.10.2 tls 232 1.2.10.2 tls ACPI_TABLE_HEADER * 233 1.2.10.2 tls ApGetTableFromFile ( 234 1.2.10.2 tls char *Pathname, 235 1.2.10.2 tls UINT32 *OutFileSize) 236 1.2.10.2 tls { 237 1.2.10.2 tls ACPI_TABLE_HEADER *Buffer = NULL; 238 1.2.10.3 jdolecek ACPI_FILE File; 239 1.2.10.2 tls UINT32 FileSize; 240 1.2.10.3 jdolecek ACPI_SIZE Actual; 241 1.2.10.2 tls 242 1.2.10.2 tls 243 1.2.10.2 tls /* Must use binary mode */ 244 1.2.10.2 tls 245 1.2.10.2 tls File = fopen (Pathname, "rb"); 246 1.2.10.2 tls if (!File) 247 1.2.10.2 tls { 248 1.2.10.3 jdolecek fprintf (stderr, "Could not open input file: %s\n", Pathname); 249 1.2.10.2 tls return (NULL); 250 1.2.10.2 tls } 251 1.2.10.2 tls 252 1.2.10.2 tls /* Need file size to allocate a buffer */ 253 1.2.10.2 tls 254 1.2.10.3 jdolecek FileSize = CmGetFileSize (File); 255 1.2.10.3 jdolecek if (FileSize == ACPI_UINT32_MAX) 256 1.2.10.2 tls { 257 1.2.10.2 tls fprintf (stderr, 258 1.2.10.2 tls "Could not get input file size: %s\n", Pathname); 259 1.2.10.2 tls goto Cleanup; 260 1.2.10.2 tls } 261 1.2.10.2 tls 262 1.2.10.2 tls /* Allocate a buffer for the entire file */ 263 1.2.10.2 tls 264 1.2.10.3 jdolecek Buffer = ACPI_ALLOCATE_ZEROED (FileSize); 265 1.2.10.2 tls if (!Buffer) 266 1.2.10.2 tls { 267 1.2.10.2 tls fprintf (stderr, 268 1.2.10.2 tls "Could not allocate file buffer of size: %u\n", FileSize); 269 1.2.10.2 tls goto Cleanup; 270 1.2.10.2 tls } 271 1.2.10.2 tls 272 1.2.10.2 tls /* Read the entire file */ 273 1.2.10.2 tls 274 1.2.10.2 tls Actual = fread (Buffer, 1, FileSize, File); 275 1.2.10.2 tls if (Actual != FileSize) 276 1.2.10.2 tls { 277 1.2.10.3 jdolecek fprintf (stderr, "Could not read input file: %s\n", Pathname); 278 1.2.10.3 jdolecek ACPI_FREE (Buffer); 279 1.2.10.2 tls Buffer = NULL; 280 1.2.10.2 tls goto Cleanup; 281 1.2.10.2 tls } 282 1.2.10.2 tls 283 1.2.10.2 tls *OutFileSize = FileSize; 284 1.2.10.2 tls 285 1.2.10.2 tls Cleanup: 286 1.2.10.2 tls fclose (File); 287 1.2.10.2 tls return (Buffer); 288 1.2.10.2 tls } 289
Indexes created Fri Oct 03 02:09:57 GMT 2025