sys/contrib/dev/acpica-unix-20061109/tools/acpiexec/osunixdir.c

   1
   2 /******************************************************************************
   3  *
   4  * Module Name: osunixdir - Unix directory access interfaces
   5  *
   6  *****************************************************************************/
   7
   8 /******************************************************************************
   9  *
  10  * 1. Copyright Notice
  11  *
  12  * Some or all of this work - Copyright (c) 1999 - 2006, Intel Corp.
  13  * All rights reserved.
  14  *
  15  * 2. License
  16  *
  17  * 2.1. This is your license from Intel Corp. under its intellectual property
  18  * rights.  You may have additional license terms from the party that provided
  19  * you this software, covering your right to use that party's intellectual
  20  * property rights.
  21  *
  22  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  23  * copy of the source code appearing in this file ("Covered Code") an
  24  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  25  * base code distributed originally by Intel ("Original Intel Code") to copy,
  26  * make derivatives, distribute, use and display any portion of the Covered
  27  * Code in any form, with the right to sublicense such rights; and
  28  *
  29  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  30  * license (with the right to sublicense), under only those claims of Intel
  31  * patents that are infringed by the Original Intel Code, to make, use, sell,
  32  * offer to sell, and import the Covered Code and derivative works thereof
  33  * solely to the minimum extent necessary to exercise the above copyright
  34  * license, and in no event shall the patent license extend to any additions
  35  * to or modifications of the Original Intel Code.  No other license or right
  36  * is granted directly or by implication, estoppel or otherwise;
  37  *
  38  * The above copyright and patent license is granted only if the following
  39  * conditions are met:
  40  *
  41  * 3. Conditions
  42  *
  43  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  44  * Redistribution of source code of any substantial portion of the Covered
  45  * Code or modification with rights to further distribute source must include
  46  * the above Copyright Notice, the above License, this list of Conditions,
  47  * and the following Disclaimer and Export Compliance provision.  In addition,
  48  * Licensee must cause all Covered Code to which Licensee contributes to
  49  * contain a file documenting the changes Licensee made to create that Covered
  50  * Code and the date of any change.  Licensee must include in that file the
  51  * documentation of any changes made by any predecessor Licensee.  Licensee
  52  * must include a prominent statement that the modification is derived,
  53  * directly or indirectly, from Original Intel Code.
  54  *
  55  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  56  * Redistribution of source code of any substantial portion of the Covered
  57  * Code or modification without rights to further distribute source must
  58  * include the following Disclaimer and Export Compliance provision in the
  59  * documentation and/or other materials provided with distribution.  In
  60  * addition, Licensee may not authorize further sublicense of source of any
  61  * portion of the Covered Code, and must include terms to the effect that the
  62  * license from Licensee to its licensee is limited to the intellectual
  63  * property embodied in the software Licensee provides to its licensee, and
  64  * not to intellectual property embodied in modifications its licensee may
  65  * make.
  66  *
  67  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  68  * substantial portion of the Covered Code or modification must reproduce the
  69  * above Copyright Notice, and the following Disclaimer and Export Compliance
  70  * provision in the documentation and/or other materials provided with the
  71  * distribution.
  72  *
  73  * 3.4. Intel retains all right, title, and interest in and to the Original
  74  * Intel Code.
  75  *
  76  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  77  * Intel shall be used in advertising or otherwise to promote the sale, use or
  78  * other dealings in products derived from or relating to the Covered Code
  79  * without prior written authorization from Intel.
  80  *
  81  * 4. Disclaimer and Export Compliance
  82  *
  83  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  84  * HERE.  ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  85  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT,  ASSISTANCE,
  86  * INSTALLATION, TRAINING OR OTHER SERVICES.  INTEL WILL NOT PROVIDE ANY
  87  * UPDATES, ENHANCEMENTS OR EXTENSIONS.  INTEL SPECIFICALLY DISCLAIMS ANY
  88  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  89  * PARTICULAR PURPOSE.
  90  *
  91  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  92  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  93  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  94  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  95  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  96  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.  THESE LIMITATIONS
  97  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  98  * LIMITED REMEDY.
  99  *
 100  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 101  * software or system incorporating such software without first obtaining any
 102  * required license or other approval from the U. S. Department of Commerce or
 103  * any other agency or department of the United States Government.  In the
 104  * event Licensee exports any such software from the United States or
 105  * re-exports any such software from a foreign destination, Licensee shall
 106  * ensure that the distribution and export/re-export of the software is in
 107  * compliance with all laws, regulations, orders, or other restrictions of the
 108  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 109  * any of its subsidiaries will export/re-export any technical data, process,
 110  * software, or service, directly or indirectly, to any country for which the
 111  * United States government or any agency thereof requires an export license,
 112  * other governmental approval, or letter of assurance, without first obtaining
 113  * such license, approval or letter.
 114  *
 115  *****************************************************************************/
 116
 117
 118 #include <stdio.h>
 119 #include <stdlib.h>
 120 #include <string.h>
 121 #include <dirent.h>
 122 #include <fnmatch.h>
 123 #include <ctype.h>
 124 #include <sys/stat.h>
 125
 126 #include "acpisrc.h"
 127
 128 typedef struct ExternalFindInfo
 129 {
 130     char                        *DirPathname;
 131     DIR                         *DirPtr;
 132     char                        temp_buffer[128];
 133     char                        *WildcardSpec;
 134     char                        RequestedFileType;
 135
 136 } EXTERNAL_FIND_INFO;
 137
 138
 139 /*******************************************************************************
 140  *
 141  * FUNCTION:    AcpiOsOpenDirectory
 142  *
 143  * PARAMETERS:  DirPathname         - Full pathname to the directory
 144  *              WildcardSpec        - string of the form "*.c", etc.
 145  *
 146  * RETURN:      A directory "handle" to be used in subsequent search operations.
 147  *              NULL returned on failure.
 148  *
 149  * DESCRIPTION: Open a directory in preparation for a wildcard search
 150  *
 151  ******************************************************************************/
 152
 153 void *
 154 AcpiOsOpenDirectory (
 155     char                    *DirPathname,
 156     char                    *WildcardSpec,
 157     char                    RequestedFileType)
 158 {
 159     EXTERNAL_FIND_INFO      *ExternalInfo;
 160     DIR                     *dir;
 161
 162
 163     /* Allocate the info struct that will be returned to the caller */
 164
 165     ExternalInfo = calloc (sizeof (EXTERNAL_FIND_INFO), 1);
 166     if (!ExternalInfo)
 167     {
 168         return NULL;
 169     }
 170
 171     /* Get the directory stream */
 172
 173     dir = opendir(DirPathname);
 174     if (!dir)
 175     {
 176     free(ExternalInfo);
 177         return NULL;
 178     }
 179
 180     /* Save the info in the return structure */
 181
 182     ExternalInfo->WildcardSpec = WildcardSpec;
 183     ExternalInfo->RequestedFileType = RequestedFileType;
 184     ExternalInfo->DirPathname = DirPathname;
 185     ExternalInfo->DirPtr = dir;
 186     return (ExternalInfo);
 187 }
 188
 189
 190 /*******************************************************************************
 191  *
 192  * FUNCTION:    AcpiOsGetNextFilename
 193  *
 194  * PARAMETERS:  DirHandle           - Created via AcpiOsOpenDirectory
 195  *
 196  * RETURN:      Next filename matched.  NULL if no more matches.
 197  *
 198  * DESCRIPTION: Get the next file in the directory that matches the wildcard
 199  *              specification.
 200  *
 201  ******************************************************************************/
 202
 203 char *
 204 AcpiOsGetNextFilename (
 205     void                    *DirHandle)
 206 {
 207     EXTERNAL_FIND_INFO      *ExternalInfo = DirHandle;
 208     struct dirent           *dir_entry;
 209
 210     while((dir_entry = readdir(ExternalInfo->DirPtr)))
 211     {
 212         if (!fnmatch(ExternalInfo->WildcardSpec, dir_entry->d_name, 0))
 213         {
 214             char *temp_str;
 215             int str_len;
 216             struct stat temp_stat;
 217             int err;
 218
 219             if (dir_entry->d_name[0] == '.')
 220                 continue;
 221
 222             str_len = strlen(dir_entry->d_name) + strlen (ExternalInfo->DirPathname) + 2;
 223
 224             temp_str = calloc(str_len, 1);
 225             if (!temp_str)
 226             {
 227                 printf ("Could not allocate buffer for temporary string\n");
 228                 return NULL;
 229             }
 230
 231             strcpy(temp_str, ExternalInfo->DirPathname);
 232             strcat(temp_str, "/");
 233             strcat(temp_str, dir_entry->d_name);
 234
 235             err = stat(temp_str, &temp_stat);
 236             free (temp_str);
 237             if (err == -1)
 238             {
 239                 printf ("stat() error - should not happen\n");
 240                 return NULL;
 241             }
 242
 243             if ((S_ISDIR(temp_stat.st_mode)
 244                 && (ExternalInfo->RequestedFileType == REQUEST_DIR_ONLY))
 245                ||
 246                ((!S_ISDIR(temp_stat.st_mode)
 247                 && ExternalInfo->RequestedFileType == REQUEST_FILE_ONLY)))
 248             {
 249                 /* copy to a temp buffer because dir_entry struct is on the stack */
 250                 strcpy(ExternalInfo->temp_buffer, dir_entry->d_name);
 251                 return (ExternalInfo->temp_buffer);
 252             }
 253         }
 254     }
 255
 256     return NULL;
 257 }
 258
 259
 260 /*******************************************************************************
 261  *
 262  * FUNCTION:    AcpiOsCloseDirectory
 263  *
 264  * PARAMETERS:  DirHandle           - Created via AcpiOsOpenDirectory
 265  *
 266  * RETURN:      None.
 267  *
 268  * DESCRIPTION: Close the open directory and cleanup.
 269  *
 270  ******************************************************************************/
 271
 272 void
 273 AcpiOsCloseDirectory (
 274     void                    *DirHandle)
 275 {
 276     EXTERNAL_FIND_INFO      *ExternalInfo = DirHandle;
 277
 278
 279     /* Close the directory and free allocations */
 280
 281     closedir(ExternalInfo->DirPtr);
 282     free (DirHandle);
 283 }
 284
 285 /* Other functions acpisrc uses but that aren't standard on Unix */
 286
 287 /* lowercase a string */
 288 char*
 289 strlwr  (
 290    char   *str)
 291 {
 292     int length;
 293     int i;
 294
 295     length = strlen(str);
 296
 297     for (i = 0; i < length; i++)
 298     {
 299         str[i] = tolower(str[i]);
 300     }
 301
 302     return str;
 303 }