diff options
Diffstat (limited to 'source/os_specific/service_layers/osunixdir.c')
| -rw-r--r-- | source/os_specific/service_layers/osunixdir.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/source/os_specific/service_layers/osunixdir.c b/source/os_specific/service_layers/osunixdir.c new file mode 100644 index 000000000000..20b153c3d485 --- /dev/null +++ b/source/os_specific/service_layers/osunixdir.c @@ -0,0 +1,251 @@ + +/****************************************************************************** + * + * Module Name: osunixdir - Unix 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 <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <dirent.h> +#include <fnmatch.h> +#include <ctype.h> +#include <sys/stat.h> + +#include "acpisrc.h" + +/* + * Allocated structure returned from OsOpenDirectory + */ +typedef struct ExternalFindInfo +{ + char *DirPathname; + DIR *DirPtr; + char temp_buffer[128]; + char *WildcardSpec; + char RequestedFileType; + +} EXTERNAL_FIND_INFO; + + +/******************************************************************************* + * + * FUNCTION: AcpiOsOpenDirectory + * + * PARAMETERS: DirPathname - Full pathname to the directory + * WildcardSpec - string of the form "*.c", etc. + * + * 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) +{ + EXTERNAL_FIND_INFO *ExternalInfo; + DIR *dir; + + + /* Allocate the info struct that will be returned to the caller */ + + ExternalInfo = calloc (sizeof (EXTERNAL_FIND_INFO), 1); + if (!ExternalInfo) + { + return (NULL); + } + + /* Get the directory stream */ + + dir = opendir (DirPathname); + if (!dir) + { + free (ExternalInfo); + return (NULL); + } + + /* Save the info in the return structure */ + + ExternalInfo->WildcardSpec = WildcardSpec; + ExternalInfo->RequestedFileType = RequestedFileType; + ExternalInfo->DirPathname = DirPathname; + ExternalInfo->DirPtr = dir; + return (ExternalInfo); +} + + +/******************************************************************************* + * + * 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 *ExternalInfo = DirHandle; + struct dirent *dir_entry; + char *temp_str; + int str_len; + struct stat temp_stat; + int err; + + + while ((dir_entry = readdir (ExternalInfo->DirPtr))) + { + if (!fnmatch (ExternalInfo->WildcardSpec, dir_entry->d_name, 0)) + { + if (dir_entry->d_name[0] == '.') + { + continue; + } + + str_len = strlen (dir_entry->d_name) + + strlen (ExternalInfo->DirPathname) + 2; + + temp_str = calloc (str_len, 1); + if (!temp_str) + { + printf ("Could not allocate buffer for temporary string\n"); + return (NULL); + } + + strcpy (temp_str, ExternalInfo->DirPathname); + strcat (temp_str, "/"); + strcat (temp_str, dir_entry->d_name); + + err = stat (temp_str, &temp_stat); + free (temp_str); + if (err == -1) + { + printf ("stat() error - should not happen\n"); + return (NULL); + } + + if ((S_ISDIR (temp_stat.st_mode) + && (ExternalInfo->RequestedFileType == REQUEST_DIR_ONLY)) + || + ((!S_ISDIR (temp_stat.st_mode) + && ExternalInfo->RequestedFileType == REQUEST_FILE_ONLY))) + { + /* copy to a temp buffer because dir_entry struct is on the stack */ + + strcpy (ExternalInfo->temp_buffer, dir_entry->d_name); + return (ExternalInfo->temp_buffer); + } + } + } + + return (NULL); +} + + +/******************************************************************************* + * + * FUNCTION: AcpiOsCloseDirectory + * + * PARAMETERS: DirHandle - Created via AcpiOsOpenDirectory + * + * RETURN: None. + * + * DESCRIPTION: Close the open directory and cleanup. + * + ******************************************************************************/ + +void +AcpiOsCloseDirectory ( + void *DirHandle) +{ + EXTERNAL_FIND_INFO *ExternalInfo = DirHandle; + + + /* Close the directory and free allocations */ + + closedir (ExternalInfo->DirPtr); + free (DirHandle); +} + + +/* Other functions acpisrc uses but that aren't standard on Unix */ + +/******************************************************************************* + * + * FUNCTION: strlwr + * + * PARAMETERS: str - String to be lowercased. + * + * RETURN: str. + * + * DESCRIPTION: Lowercase a string in-place. + * + ******************************************************************************/ + +char * +strlwr ( + char *str) +{ + int length; + int i; + + + length = strlen (str); + + for (i = 0; i < length; i++) + { + str[i] = tolower ((int) str[i]); + } + + return (str); +} |