1 /****************************************************************************** 2 * 3 * Module Name: osunixdir - Unix directory access interfaces 4 * 5 *****************************************************************************/ 6 7 /****************************************************************************** 8 * 9 * 1. Copyright Notice 10 * 11 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. 12 * All rights reserved. 13 * 14 * 2. License 15 * 16 * 2.1. This is your license from Intel Corp. under its intellectual property 17 * rights. You may have additional license terms from the party that provided 18 * you this software, covering your right to use that party's intellectual 19 * property rights. 20 * 21 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a 22 * copy of the source code appearing in this file ("Covered Code") an 23 * irrevocable, perpetual, worldwide license under Intel's copyrights in the 24 * base code distributed originally by Intel ("Original Intel Code") to copy, 25 * make derivatives, distribute, use and display any portion of the Covered 26 * Code in any form, with the right to sublicense such rights; and 27 * 28 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent 29 * license (with the right to sublicense), under only those claims of Intel 30 * patents that are infringed by the Original Intel Code, to make, use, sell, 31 * offer to sell, and import the Covered Code and derivative works thereof 32 * solely to the minimum extent necessary to exercise the above copyright 33 * license, and in no event shall the patent license extend to any additions 34 * to or modifications of the Original Intel Code. No other license or right 35 * is granted directly or by implication, estoppel or otherwise; 36 * 37 * The above copyright and patent license is granted only if the following 38 * conditions are met: 39 * 40 * 3. Conditions 41 * 42 * 3.1. Redistribution of Source with Rights to Further Distribute Source. 43 * Redistribution of source code of any substantial portion of the Covered 44 * Code or modification with rights to further distribute source must include 45 * the above Copyright Notice, the above License, this list of Conditions, 46 * and the following Disclaimer and Export Compliance provision. In addition, 47 * Licensee must cause all Covered Code to which Licensee contributes to 48 * contain a file documenting the changes Licensee made to create that Covered 49 * Code and the date of any change. Licensee must include in that file the 50 * documentation of any changes made by any predecessor Licensee. Licensee 51 * must include a prominent statement that the modification is derived, 52 * directly or indirectly, from Original Intel Code. 53 * 54 * 3.2. Redistribution of Source with no Rights to Further Distribute Source. 55 * Redistribution of source code of any substantial portion of the Covered 56 * Code or modification without rights to further distribute source must 57 * include the following Disclaimer and Export Compliance provision in the 58 * documentation and/or other materials provided with distribution. In 59 * addition, Licensee may not authorize further sublicense of source of any 60 * portion of the Covered Code, and must include terms to the effect that the 61 * license from Licensee to its licensee is limited to the intellectual 62 * property embodied in the software Licensee provides to its licensee, and 63 * not to intellectual property embodied in modifications its licensee may 64 * make. 65 * 66 * 3.3. Redistribution of Executable. Redistribution in executable form of any 67 * substantial portion of the Covered Code or modification must reproduce the 68 * above Copyright Notice, and the following Disclaimer and Export Compliance 69 * provision in the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3.4. Intel retains all right, title, and interest in and to the Original 73 * Intel Code. 74 * 75 * 3.5. Neither the name Intel nor any other trademark owned or controlled by 76 * Intel shall be used in advertising or otherwise to promote the sale, use or 77 * other dealings in products derived from or relating to the Covered Code 78 * without prior written authorization from Intel. 79 * 80 * 4. Disclaimer and Export Compliance 81 * 82 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED 83 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE 84 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, 85 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY 86 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY 87 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A 88 * PARTICULAR PURPOSE. 89 * 90 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES 91 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR 92 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, 93 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY 94 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL 95 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS 96 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY 97 * LIMITED REMEDY. 98 * 99 * 4.3. Licensee shall not export, either directly or indirectly, any of this 100 * software or system incorporating such software without first obtaining any 101 * required license or other approval from the U. S. Department of Commerce or 102 * any other agency or department of the United States Government. In the 103 * event Licensee exports any such software from the United States or 104 * re-exports any such software from a foreign destination, Licensee shall 105 * ensure that the distribution and export/re-export of the software is in 106 * compliance with all laws, regulations, orders, or other restrictions of the 107 * U.S. Export Administration Regulations. Licensee agrees that neither it nor 108 * any of its subsidiaries will export/re-export any technical data, process, 109 * software, or service, directly or indirectly, to any country for which the 110 * United States government or any agency thereof requires an export license, 111 * other governmental approval, or letter of assurance, without first obtaining 112 * such license, approval or letter. 113 * 114 ***************************************************************************** 115 * 116 * Alternatively, you may choose to be licensed under the terms of the 117 * following license: 118 * 119 * Redistribution and use in source and binary forms, with or without 120 * modification, are permitted provided that the following conditions 121 * are met: 122 * 1. Redistributions of source code must retain the above copyright 123 * notice, this list of conditions, and the following disclaimer, 124 * without modification. 125 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 126 * substantially similar to the "NO WARRANTY" disclaimer below 127 * ("Disclaimer") and any redistribution must be conditioned upon 128 * including a substantially similar Disclaimer requirement for further 129 * binary redistribution. 130 * 3. Neither the names of the above-listed copyright holders nor the names 131 * of any contributors may be used to endorse or promote products derived 132 * from this software without specific prior written permission. 133 * 134 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 135 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 136 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 137 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 138 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 139 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 140 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 141 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 142 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 143 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 144 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 145 * 146 * Alternatively, you may choose to be licensed under the terms of the 147 * GNU General Public License ("GPL") version 2 as published by the Free 148 * Software Foundation. 149 * 150 *****************************************************************************/ 151 152 #include "acpi.h" 153 154 #include <stdio.h> 155 #include <stdlib.h> 156 #include <string.h> 157 #include <dirent.h> 158 #include <fnmatch.h> 159 #include <ctype.h> 160 #include <sys/stat.h> 161 162 /* 163 * Allocated structure returned from OsOpenDirectory 164 */ 165 typedef struct ExternalFindInfo 166 { 167 char *DirPathname; 168 DIR *DirPtr; 169 char temp_buffer[256]; 170 char *WildcardSpec; 171 char RequestedFileType; 172 173 } EXTERNAL_FIND_INFO; 174 175 176 /******************************************************************************* 177 * 178 * FUNCTION: AcpiOsOpenDirectory 179 * 180 * PARAMETERS: DirPathname - Full pathname to the directory 181 * WildcardSpec - string of the form "*.c", etc. 182 * 183 * RETURN: A directory "handle" to be used in subsequent search operations. 184 * NULL returned on failure. 185 * 186 * DESCRIPTION: Open a directory in preparation for a wildcard search 187 * 188 ******************************************************************************/ 189 190 void * 191 AcpiOsOpenDirectory ( 192 char *DirPathname, 193 char *WildcardSpec, 194 char RequestedFileType) 195 { 196 EXTERNAL_FIND_INFO *ExternalInfo; 197 DIR *dir; 198 199 200 /* Allocate the info struct that will be returned to the caller */ 201 202 ExternalInfo = calloc (1, sizeof (EXTERNAL_FIND_INFO)); 203 if (!ExternalInfo) 204 { 205 return (NULL); 206 } 207 208 /* Get the directory stream */ 209 210 dir = opendir (DirPathname); 211 if (!dir) 212 { 213 fprintf (stderr, "Cannot open directory - %s\n", DirPathname); 214 free (ExternalInfo); 215 return (NULL); 216 } 217 218 /* Save the info in the return structure */ 219 220 ExternalInfo->WildcardSpec = WildcardSpec; 221 ExternalInfo->RequestedFileType = RequestedFileType; 222 ExternalInfo->DirPathname = DirPathname; 223 ExternalInfo->DirPtr = dir; 224 return (ExternalInfo); 225 } 226 227 228 /******************************************************************************* 229 * 230 * FUNCTION: AcpiOsGetNextFilename 231 * 232 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory 233 * 234 * RETURN: Next filename matched. NULL if no more matches. 235 * 236 * DESCRIPTION: Get the next file in the directory that matches the wildcard 237 * specification. 238 * 239 ******************************************************************************/ 240 241 char * 242 AcpiOsGetNextFilename ( 243 void *DirHandle) 244 { 245 EXTERNAL_FIND_INFO *ExternalInfo = DirHandle; 246 struct dirent *dir_entry; 247 char *temp_str; 248 int str_len; 249 struct stat temp_stat; 250 int err; 251 252 253 while ((dir_entry = readdir (ExternalInfo->DirPtr))) 254 { 255 if (!fnmatch (ExternalInfo->WildcardSpec, dir_entry->d_name, 0)) 256 { 257 if (dir_entry->d_name[0] == '.') 258 { 259 continue; 260 } 261 262 str_len = strlen (dir_entry->d_name) + 263 strlen (ExternalInfo->DirPathname) + 2; 264 265 temp_str = calloc (str_len, 1); 266 if (!temp_str) 267 { 268 fprintf (stderr, 269 "Could not allocate buffer for temporary string\n"); 270 return (NULL); 271 } 272 273 strcpy (temp_str, ExternalInfo->DirPathname); 274 strcat (temp_str, "/"); 275 strcat (temp_str, dir_entry->d_name); 276 277 err = stat (temp_str, &temp_stat); 278 if (err == -1) 279 { 280 fprintf (stderr, 281 "Cannot stat file (should not happen) - %s\n", 282 temp_str); 283 free (temp_str); 284 return (NULL); 285 } 286 287 free (temp_str); 288 289 if ((S_ISDIR (temp_stat.st_mode) 290 && (ExternalInfo->RequestedFileType == REQUEST_DIR_ONLY)) 291 || 292 ((!S_ISDIR (temp_stat.st_mode) 293 && ExternalInfo->RequestedFileType == REQUEST_FILE_ONLY))) 294 { 295 /* copy to a temp buffer because dir_entry struct is on the stack */ 296 297 strcpy (ExternalInfo->temp_buffer, dir_entry->d_name); 298 return (ExternalInfo->temp_buffer); 299 } 300 } 301 } 302 303 return (NULL); 304 } 305 306 307 /******************************************************************************* 308 * 309 * FUNCTION: AcpiOsCloseDirectory 310 * 311 * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory 312 * 313 * RETURN: None. 314 * 315 * DESCRIPTION: Close the open directory and cleanup. 316 * 317 ******************************************************************************/ 318 319 void 320 AcpiOsCloseDirectory ( 321 void *DirHandle) 322 { 323 EXTERNAL_FIND_INFO *ExternalInfo = DirHandle; 324 325 326 /* Close the directory and free allocations */ 327 328 closedir (ExternalInfo->DirPtr); 329 free (DirHandle); 330 } 331