apfiles.c revision 1.2.10.2
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 1.2.10.2 tls * Copyright (C) 2000 - 2013, 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 1.2.10.2 tls #include "acapps.h" 46 1.2.10.2 tls 47 1.2.10.2 tls 48 1.2.10.2 tls /****************************************************************************** 49 1.2.10.2 tls * 50 1.2.10.2 tls * FUNCTION: ApOpenOutputFile 51 1.2.10.2 tls * 52 1.2.10.2 tls * PARAMETERS: Pathname - Output filename 53 1.2.10.2 tls * 54 1.2.10.2 tls * RETURN: Open file handle 55 1.2.10.2 tls * 56 1.2.10.2 tls * DESCRIPTION: Open a text output file for acpidump. Checks if file already 57 1.2.10.2 tls * exists. 58 1.2.10.2 tls * 59 1.2.10.2 tls ******************************************************************************/ 60 1.2.10.2 tls 61 1.2.10.2 tls int 62 1.2.10.2 tls ApOpenOutputFile ( 63 1.2.10.2 tls char *Pathname) 64 1.2.10.2 tls { 65 1.2.10.2 tls struct stat StatInfo; 66 1.2.10.2 tls FILE *File; 67 1.2.10.2 tls 68 1.2.10.2 tls 69 1.2.10.2 tls /* If file exists, prompt for overwrite */ 70 1.2.10.2 tls 71 1.2.10.2 tls if (!stat (Pathname, &StatInfo)) 72 1.2.10.2 tls { 73 1.2.10.2 tls fprintf (stderr, "Target path already exists, overwrite? [y|n] "); 74 1.2.10.2 tls 75 1.2.10.2 tls if (getchar () != 'y') 76 1.2.10.2 tls { 77 1.2.10.2 tls return (-1); 78 1.2.10.2 tls } 79 1.2.10.2 tls } 80 1.2.10.2 tls 81 1.2.10.2 tls /* Point stdout to the file */ 82 1.2.10.2 tls 83 1.2.10.2 tls File = freopen (Pathname, "w", stdout); 84 1.2.10.2 tls if (!File) 85 1.2.10.2 tls { 86 1.2.10.2 tls perror ("Could not open output file"); 87 1.2.10.2 tls return (-1); 88 1.2.10.2 tls } 89 1.2.10.2 tls 90 1.2.10.2 tls /* Save the file and path */ 91 1.2.10.2 tls 92 1.2.10.2 tls Gbl_OutputFile = File; 93 1.2.10.2 tls Gbl_OutputFilename = Pathname; 94 1.2.10.2 tls return (0); 95 1.2.10.2 tls } 96 1.2.10.2 tls 97 1.2.10.2 tls 98 1.2.10.2 tls /****************************************************************************** 99 1.2.10.2 tls * 100 1.2.10.2 tls * FUNCTION: ApWriteToBinaryFile 101 1.2.10.2 tls * 102 1.2.10.2 tls * PARAMETERS: Table - ACPI table to be written 103 1.2.10.2 tls * Instance - ACPI table instance no. to be written 104 1.2.10.2 tls * 105 1.2.10.2 tls * RETURN: Status 106 1.2.10.2 tls * 107 1.2.10.2 tls * DESCRIPTION: Write an ACPI table to a binary file. Builds the output 108 1.2.10.2 tls * filename from the table signature. 109 1.2.10.2 tls * 110 1.2.10.2 tls ******************************************************************************/ 111 1.2.10.2 tls 112 1.2.10.2 tls int 113 1.2.10.2 tls ApWriteToBinaryFile ( 114 1.2.10.2 tls ACPI_TABLE_HEADER *Table, 115 1.2.10.2 tls UINT32 Instance) 116 1.2.10.2 tls { 117 1.2.10.2 tls char Filename[ACPI_NAME_SIZE + 16]; 118 1.2.10.2 tls char InstanceStr [16]; 119 1.2.10.2 tls FILE *File; 120 1.2.10.2 tls size_t Actual; 121 1.2.10.2 tls UINT32 TableLength; 122 1.2.10.2 tls 123 1.2.10.2 tls 124 1.2.10.2 tls /* Obtain table length */ 125 1.2.10.2 tls 126 1.2.10.2 tls TableLength = ApGetTableLength (Table); 127 1.2.10.2 tls 128 1.2.10.2 tls /* Construct lower-case filename from the table local signature */ 129 1.2.10.2 tls 130 1.2.10.2 tls if (ACPI_VALIDATE_RSDP_SIG (Table->Signature)) 131 1.2.10.2 tls { 132 1.2.10.2 tls ACPI_MOVE_NAME (Filename, AP_DUMP_SIG_RSDP); 133 1.2.10.2 tls } 134 1.2.10.2 tls else 135 1.2.10.2 tls { 136 1.2.10.2 tls ACPI_MOVE_NAME (Filename, Table->Signature); 137 1.2.10.2 tls } 138 1.2.10.2 tls Filename[0] = (char) ACPI_TOLOWER (Filename[0]); 139 1.2.10.2 tls Filename[1] = (char) ACPI_TOLOWER (Filename[1]); 140 1.2.10.2 tls Filename[2] = (char) ACPI_TOLOWER (Filename[2]); 141 1.2.10.2 tls Filename[3] = (char) ACPI_TOLOWER (Filename[3]); 142 1.2.10.2 tls Filename[ACPI_NAME_SIZE] = 0; 143 1.2.10.2 tls 144 1.2.10.2 tls /* Handle multiple SSDTs - create different filenames for each */ 145 1.2.10.2 tls 146 1.2.10.2 tls if (Instance > 0) 147 1.2.10.2 tls { 148 1.2.10.2 tls snprintf (InstanceStr, sizeof(InstanceStr), "%u", Instance); 149 1.2.10.2 tls strcat (Filename, InstanceStr); 150 1.2.10.2 tls } 151 1.2.10.2 tls 152 1.2.10.2 tls strcat (Filename, ACPI_TABLE_FILE_SUFFIX); 153 1.2.10.2 tls 154 1.2.10.2 tls if (Gbl_VerboseMode) 155 1.2.10.2 tls { 156 1.2.10.2 tls fprintf (stderr, 157 1.2.10.2 tls "Writing [%4.4s] to binary file: %s 0x%X (%u) bytes\n", 158 1.2.10.2 tls Table->Signature, Filename, Table->Length, Table->Length); 159 1.2.10.2 tls } 160 1.2.10.2 tls 161 1.2.10.2 tls /* Open the file and dump the entire table in binary mode */ 162 1.2.10.2 tls 163 1.2.10.2 tls File = fopen (Filename, "wb"); 164 1.2.10.2 tls if (!File) 165 1.2.10.2 tls { 166 1.2.10.2 tls perror ("Could not open output file"); 167 1.2.10.2 tls return (-1); 168 1.2.10.2 tls } 169 1.2.10.2 tls 170 1.2.10.2 tls Actual = fwrite (Table, 1, TableLength, File); 171 1.2.10.2 tls if (Actual != TableLength) 172 1.2.10.2 tls { 173 1.2.10.2 tls perror ("Error writing binary output file"); 174 1.2.10.2 tls fclose (File); 175 1.2.10.2 tls return (-1); 176 1.2.10.2 tls } 177 1.2.10.2 tls 178 1.2.10.2 tls fclose (File); 179 1.2.10.2 tls return (0); 180 1.2.10.2 tls } 181 1.2.10.2 tls 182 1.2.10.2 tls 183 1.2.10.2 tls /****************************************************************************** 184 1.2.10.2 tls * 185 1.2.10.2 tls * FUNCTION: ApGetTableFromFile 186 1.2.10.2 tls * 187 1.2.10.2 tls * PARAMETERS: Pathname - File containing the binary ACPI table 188 1.2.10.2 tls * OutFileSize - Where the file size is returned 189 1.2.10.2 tls * 190 1.2.10.2 tls * RETURN: Buffer containing the ACPI table. NULL on error. 191 1.2.10.2 tls * 192 1.2.10.2 tls * DESCRIPTION: Open a file and read it entirely into a new buffer 193 1.2.10.2 tls * 194 1.2.10.2 tls ******************************************************************************/ 195 1.2.10.2 tls 196 1.2.10.2 tls ACPI_TABLE_HEADER * 197 1.2.10.2 tls ApGetTableFromFile ( 198 1.2.10.2 tls char *Pathname, 199 1.2.10.2 tls UINT32 *OutFileSize) 200 1.2.10.2 tls { 201 1.2.10.2 tls ACPI_TABLE_HEADER *Buffer = NULL; 202 1.2.10.2 tls FILE *File; 203 1.2.10.2 tls UINT32 FileSize; 204 1.2.10.2 tls size_t Actual; 205 1.2.10.2 tls 206 1.2.10.2 tls 207 1.2.10.2 tls /* Must use binary mode */ 208 1.2.10.2 tls 209 1.2.10.2 tls File = fopen (Pathname, "rb"); 210 1.2.10.2 tls if (!File) 211 1.2.10.2 tls { 212 1.2.10.2 tls perror ("Could not open input file"); 213 1.2.10.2 tls return (NULL); 214 1.2.10.2 tls } 215 1.2.10.2 tls 216 1.2.10.2 tls /* Need file size to allocate a buffer */ 217 1.2.10.2 tls 218 1.2.10.2 tls FileSize = ApGetFileSize (File); 219 1.2.10.2 tls if (!FileSize) 220 1.2.10.2 tls { 221 1.2.10.2 tls fprintf (stderr, 222 1.2.10.2 tls "Could not get input file size: %s\n", Pathname); 223 1.2.10.2 tls goto Cleanup; 224 1.2.10.2 tls } 225 1.2.10.2 tls 226 1.2.10.2 tls /* Allocate a buffer for the entire file */ 227 1.2.10.2 tls 228 1.2.10.2 tls Buffer = calloc (1, FileSize); 229 1.2.10.2 tls if (!Buffer) 230 1.2.10.2 tls { 231 1.2.10.2 tls fprintf (stderr, 232 1.2.10.2 tls "Could not allocate file buffer of size: %u\n", FileSize); 233 1.2.10.2 tls goto Cleanup; 234 1.2.10.2 tls } 235 1.2.10.2 tls 236 1.2.10.2 tls /* Read the entire file */ 237 1.2.10.2 tls 238 1.2.10.2 tls Actual = fread (Buffer, 1, FileSize, File); 239 1.2.10.2 tls if (Actual != FileSize) 240 1.2.10.2 tls { 241 1.2.10.2 tls fprintf (stderr, 242 1.2.10.2 tls "Could not read input file: %s\n", Pathname); 243 1.2.10.2 tls free (Buffer); 244 1.2.10.2 tls Buffer = NULL; 245 1.2.10.2 tls goto Cleanup; 246 1.2.10.2 tls } 247 1.2.10.2 tls 248 1.2.10.2 tls *OutFileSize = FileSize; 249 1.2.10.2 tls 250 1.2.10.2 tls Cleanup: 251 1.2.10.2 tls fclose (File); 252 1.2.10.2 tls return (Buffer); 253 1.2.10.2 tls } 254 1.2.10.2 tls 255 1.2.10.2 tls 256 1.2.10.2 tls /****************************************************************************** 257 1.2.10.2 tls * 258 1.2.10.2 tls * FUNCTION: ApGetFileSize 259 1.2.10.2 tls * 260 1.2.10.2 tls * PARAMETERS: File - Open file descriptor 261 1.2.10.2 tls * 262 1.2.10.2 tls * RETURN: File size in bytes 263 1.2.10.2 tls * 264 1.2.10.2 tls * DESCRIPTION: Get the size of an open file 265 1.2.10.2 tls * 266 1.2.10.2 tls ******************************************************************************/ 267 1.2.10.2 tls 268 1.2.10.2 tls UINT32 269 1.2.10.2 tls ApGetFileSize ( 270 1.2.10.2 tls FILE *File) 271 1.2.10.2 tls { 272 1.2.10.2 tls UINT32 FileSize; 273 1.2.10.2 tls long Offset; 274 1.2.10.2 tls 275 1.2.10.2 tls 276 1.2.10.2 tls Offset = ftell (File); 277 1.2.10.2 tls if (fseek (File, 0, SEEK_END)) 278 1.2.10.2 tls { 279 1.2.10.2 tls return (0); 280 1.2.10.2 tls } 281 1.2.10.2 tls 282 1.2.10.2 tls /* Get size and restore file pointer */ 283 1.2.10.2 tls 284 1.2.10.2 tls FileSize = (UINT32) ftell (File); 285 1.2.10.2 tls if (fseek (File, Offset, SEEK_SET)) 286 1.2.10.2 tls { 287 1.2.10.2 tls return (0); 288 1.2.10.2 tls } 289 1.2.10.2 tls 290 1.2.10.2 tls return (FileSize); 291 1.2.10.2 tls } 292
Indexes created Fri Oct 03 02:09:57 GMT 2025