diff options
Diffstat (limited to 'source/os_specific/service_layers/oswindir.c')
| -rw-r--r-- | source/os_specific/service_layers/oswindir.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/source/os_specific/service_layers/oswindir.c b/source/os_specific/service_layers/oswindir.c new file mode 100644 index 000000000000..2cdcb945860b --- /dev/null +++ b/source/os_specific/service_layers/oswindir.c @@ -0,0 +1,251 @@ + +/****************************************************************************** + * + * Module Name: oswindir - Windows directory access interfaces + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2012, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <io.h> + +typedef struct ExternalFindInfo +{ + struct _finddata_t DosInfo; + char *FullWildcardSpec; + long FindHandle; + char State; + char RequestedFileType; + +} EXTERNAL_FIND_INFO; + + +/******************************************************************************* + * + * FUNCTION: AcpiOsOpenDirectory + * + * PARAMETERS: DirPathname - Full pathname to the directory + * WildcardSpec - string of the form "*.c", etc. + * RequestedFileType - Either a directory or normal file + * + * RETURN: A directory "handle" to be used in subsequent search operations. + * NULL returned on failure. + * + * DESCRIPTION: Open a directory in preparation for a wildcard search + * + ******************************************************************************/ + +void * +AcpiOsOpenDirectory ( + char *DirPathname, + char *WildcardSpec, + char RequestedFileType) +{ + long FindHandle; + char *FullWildcardSpec; + EXTERNAL_FIND_INFO *SearchInfo; + + + /* No directory path means "use current directory" - use a dot */ + + if (!DirPathname || strlen (DirPathname) == 0) + { + DirPathname = "."; + } + + /* Allocate the info struct that will be returned to the caller */ + + SearchInfo = calloc (sizeof (EXTERNAL_FIND_INFO), 1); + if (!SearchInfo) + { + return (NULL); + } + + /* Allocate space for the full wildcard path */ + + FullWildcardSpec = calloc (strlen (DirPathname) + strlen (WildcardSpec) + 2, 1); + if (!FullWildcardSpec) + { + printf ("Could not allocate buffer for wildcard pathname\n"); + return (NULL); + } + + /* Create the full wildcard path */ + + strcpy (FullWildcardSpec, DirPathname); + strcat (FullWildcardSpec, "/"); + strcat (FullWildcardSpec, WildcardSpec); + + /* Initialize the find functions, get first match */ + + FindHandle = _findfirst (FullWildcardSpec, &SearchInfo->DosInfo); + if (FindHandle == -1) + { + /* Failure means that no match was found */ + + free (FullWildcardSpec); + free (SearchInfo); + return (NULL); + } + + /* Save the info in the return structure */ + + SearchInfo->RequestedFileType = RequestedFileType; + SearchInfo->FullWildcardSpec = FullWildcardSpec; + SearchInfo->FindHandle = FindHandle; + SearchInfo->State = 0; + return (SearchInfo); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsGetNextFilename + * + * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory + * + * RETURN: Next filename matched. NULL if no more matches. + * + * DESCRIPTION: Get the next file in the directory that matches the wildcard + * specification. + * + ******************************************************************************/ + +char * +AcpiOsGetNextFilename ( + void *DirHandle) +{ + EXTERNAL_FIND_INFO *SearchInfo = DirHandle; + int Status; + char FileTypeNotMatched = 1; + + + /* + * Loop while we have matched files but not found any files of + * the requested type. + */ + while (FileTypeNotMatched) + { + /* On the first call, we already have the first match */ + + if (SearchInfo->State == 0) + { + /* No longer the first match */ + + SearchInfo->State = 1; + } + else + { + /* Get the next match */ + + Status = _findnext (SearchInfo->FindHandle, &SearchInfo->DosInfo); + if (Status != 0) + { + return (NULL); + } + } + + /* + * Found a match, now check to make sure that the file type + * matches the requested file type (directory or normal file) + * + * NOTE: use of the attrib field saves us from doing a very + * expensive stat() on the file! + */ + switch (SearchInfo->RequestedFileType) + { + case REQUEST_FILE_ONLY: + + /* Anything other than A_SUBDIR is OK */ + + if (!(SearchInfo->DosInfo.attrib & _A_SUBDIR)) + { + FileTypeNotMatched = 0; + } + break; + + case REQUEST_DIR_ONLY: + + /* Must have A_SUBDIR bit set */ + + if (SearchInfo->DosInfo.attrib & _A_SUBDIR) + { + FileTypeNotMatched = 0; + } + break; + + default: + return (NULL); + } + } + + return (SearchInfo->DosInfo.name); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsCloseDirectory + * + * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory + * + * RETURN: None + * + * DESCRIPTION: Close the open directory and cleanup. + * + ******************************************************************************/ + +void +AcpiOsCloseDirectory ( + void *DirHandle) +{ + EXTERNAL_FIND_INFO *SearchInfo = DirHandle; + + + /* Close the directory and free allocations */ + + _findclose (SearchInfo->FindHandle); + free (SearchInfo->FullWildcardSpec); + free (DirHandle); +} + |