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-rw-r--r--tools/power/acpi/os_specific/service_layers/osunixdir.c204
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diff --git a/tools/power/acpi/os_specific/service_layers/osunixdir.c b/tools/power/acpi/os_specific/service_layers/osunixdir.c
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index 000000000000..733f9e490fc4
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+++ b/tools/power/acpi/os_specific/service_layers/osunixdir.c
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+/******************************************************************************
+ *
+ * Module Name: osunixdir - Unix directory access interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2014, 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/acpi.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <fnmatch.h>
+#include <ctype.h>
+#include <sys/stat.h>
+
+/*
+ * Allocated structure returned from os_open_directory
+ */
+typedef struct external_find_info {
+ char *dir_pathname;
+ DIR *dir_ptr;
+ char temp_buffer[256];
+ char *wildcard_spec;
+ char requested_file_type;
+
+} external_find_info;
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_open_directory
+ *
+ * PARAMETERS: dir_pathname - Full pathname to the directory
+ * wildcard_spec - 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 *acpi_os_open_directory(char *dir_pathname,
+ char *wildcard_spec, char requested_file_type)
+{
+ struct external_find_info *external_info;
+ DIR *dir;
+
+ /* Allocate the info struct that will be returned to the caller */
+
+ external_info = calloc(1, sizeof(struct external_find_info));
+ if (!external_info) {
+ return (NULL);
+ }
+
+ /* Get the directory stream */
+
+ dir = opendir(dir_pathname);
+ if (!dir) {
+ fprintf(stderr, "Cannot open directory - %s\n", dir_pathname);
+ free(external_info);
+ return (NULL);
+ }
+
+ /* Save the info in the return structure */
+
+ external_info->wildcard_spec = wildcard_spec;
+ external_info->requested_file_type = requested_file_type;
+ external_info->dir_pathname = dir_pathname;
+ external_info->dir_ptr = dir;
+ return (external_info);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_get_next_filename
+ *
+ * PARAMETERS: dir_handle - Created via acpi_os_open_directory
+ *
+ * RETURN: Next filename matched. NULL if no more matches.
+ *
+ * DESCRIPTION: Get the next file in the directory that matches the wildcard
+ * specification.
+ *
+ ******************************************************************************/
+
+char *acpi_os_get_next_filename(void *dir_handle)
+{
+ struct external_find_info *external_info = dir_handle;
+ struct dirent *dir_entry;
+ char *temp_str;
+ int str_len;
+ struct stat temp_stat;
+ int err;
+
+ while ((dir_entry = readdir(external_info->dir_ptr))) {
+ if (!fnmatch
+ (external_info->wildcard_spec, dir_entry->d_name, 0)) {
+ if (dir_entry->d_name[0] == '.') {
+ continue;
+ }
+
+ str_len = strlen(dir_entry->d_name) +
+ strlen(external_info->dir_pathname) + 2;
+
+ temp_str = calloc(str_len, 1);
+ if (!temp_str) {
+ fprintf(stderr,
+ "Could not allocate buffer for temporary string\n");
+ return (NULL);
+ }
+
+ strcpy(temp_str, external_info->dir_pathname);
+ strcat(temp_str, "/");
+ strcat(temp_str, dir_entry->d_name);
+
+ err = stat(temp_str, &temp_stat);
+ if (err == -1) {
+ fprintf(stderr,
+ "Cannot stat file (should not happen) - %s\n",
+ temp_str);
+ free(temp_str);
+ return (NULL);
+ }
+
+ free(temp_str);
+
+ if ((S_ISDIR(temp_stat.st_mode)
+ && (external_info->requested_file_type ==
+ REQUEST_DIR_ONLY))
+ || ((!S_ISDIR(temp_stat.st_mode)
+ && external_info->requested_file_type ==
+ REQUEST_FILE_ONLY))) {
+
+ /* copy to a temp buffer because dir_entry struct is on the stack */
+
+ strcpy(external_info->temp_buffer,
+ dir_entry->d_name);
+ return (external_info->temp_buffer);
+ }
+ }
+ }
+
+ return (NULL);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_close_directory
+ *
+ * PARAMETERS: dir_handle - Created via acpi_os_open_directory
+ *
+ * RETURN: None.
+ *
+ * DESCRIPTION: Close the open directory and cleanup.
+ *
+ ******************************************************************************/
+
+void acpi_os_close_directory(void *dir_handle)
+{
+ struct external_find_info *external_info = dir_handle;
+
+ /* Close the directory and free allocations */
+
+ closedir(external_info->dir_ptr);
+ free(dir_handle);
+}