1 files changed, 341 insertions, 0 deletions
diff --git a/tools/gator/daemon/libsensors/init.c b/tools/gator/daemon/libsensors/init.c
new file mode 100644
index 000000000000..558046e76c24
--- /dev/null
+++ b/tools/gator/daemon/libsensors/init.c
@@ -0,0 +1,341 @@
+/*
+    init.c - Part of libsensors, a Linux library for reading sensor data.
+    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
+    Copyright (C) 2007, 2009  Jean Delvare <khali@linux-fr.org>
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+    MA 02110-1301 USA.
+*/
+
+/*** This file modified by ARM on Jan 23, 2013 to cast alphasort to supress a warning as it's prototype is different on android. ***/
+
+/* Needed for scandir() and alphasort() */
+#define _BSD_SOURCE
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <locale.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <dirent.h>
+#include <unistd.h>
+#include "sensors.h"
+#include "data.h"
+#include "error.h"
+#include "access.h"
+#include "conf.h"
+#include "sysfs.h"
+#include "scanner.h"
+#include "init.h"
+
+#define DEFAULT_CONFIG_FILE	ETCDIR "/sensors3.conf"
+#define ALT_CONFIG_FILE		ETCDIR "/sensors.conf"
+#define DEFAULT_CONFIG_DIR	ETCDIR "/sensors.d"
+
+/* Wrapper around sensors_yyparse(), which clears the locale so that
+   the decimal numbers are always parsed properly. */
+static int sensors_parse(void)
+{
+	int res;
+	char *locale;
+
+	/* Remember the current locale and clear it */
+	locale = setlocale(LC_ALL, NULL);
+	if (locale) {
+		locale = strdup(locale);
+		if (!locale)
+			sensors_fatal_error(__func__, "Out of memory");
+
+		setlocale(LC_ALL, "C");
+	}
+
+	res = sensors_yyparse();
+
+	/* Restore the old locale */
+	if (locale) {
+		setlocale(LC_ALL, locale);
+		free(locale);
+	}
+
+	return res;
+}
+
+static void free_bus(sensors_bus *bus)
+{
+	free(bus->adapter);
+}
+
+static void free_config_busses(void)
+{
+	int i;
+
+	for (i = 0; i < sensors_config_busses_count; i++)
+		free_bus(&sensors_config_busses[i]);
+	free(sensors_config_busses);
+	sensors_config_busses = NULL;
+	sensors_config_busses_count = sensors_config_busses_max = 0;
+}
+
+static int parse_config(FILE *input, const char *name)
+{
+	int err;
+	char *name_copy;
+
+	if (name) {
+		/* Record configuration file name for error reporting */
+		name_copy = strdup(name);
+		if (!name_copy)
+			sensors_fatal_error(__func__, "Out of memory");
+		sensors_add_config_files(&name_copy);
+	} else
+		name_copy = NULL;
+
+	if (sensors_scanner_init(input, name_copy)) {
+		err = -SENSORS_ERR_PARSE;
+		goto exit_cleanup;
+	}
+	err = sensors_parse();
+	sensors_scanner_exit();
+	if (err) {
+		err = -SENSORS_ERR_PARSE;
+		goto exit_cleanup;
+	}
+
+	err = sensors_substitute_busses();
+
+exit_cleanup:
+	free_config_busses();
+	return err;
+}
+
+static int config_file_filter(const struct dirent *entry)
+{
+	return entry->d_name[0] != '.';		/* Skip hidden files */
+}
+
+static int add_config_from_dir(const char *dir)
+{
+	int count, res, i;
+	struct dirent **namelist;
+
+	count = scandir(dir, &namelist, config_file_filter, (int (*)(const struct dirent **, const struct dirent **))alphasort);
+	if (count < 0) {
+		/* Do not return an error if directory does not exist */
+		if (errno == ENOENT)
+			return 0;
+		
+		sensors_parse_error_wfn(strerror(errno), NULL, 0);
+		return -SENSORS_ERR_PARSE;
+	}
+
+	for (res = 0, i = 0; !res && i < count; i++) {
+		int len;
+		char path[PATH_MAX];
+		FILE *input;
+		struct stat st;
+
+		len = snprintf(path, sizeof(path), "%s/%s", dir,
+			       namelist[i]->d_name);
+		if (len < 0 || len >= (int)sizeof(path)) {
+			res = -SENSORS_ERR_PARSE;
+			continue;
+		}
+
+		/* Only accept regular files */
+		if (stat(path, &st) < 0 || !S_ISREG(st.st_mode))
+			continue;
+
+		input = fopen(path, "r");
+		if (input) {
+			res = parse_config(input, path);
+			fclose(input);
+		} else {
+			res = -SENSORS_ERR_PARSE;
+			sensors_parse_error_wfn(strerror(errno), path, 0);
+		}
+	}
+
+	/* Free memory allocated by scandir() */
+	for (i = 0; i < count; i++)
+		free(namelist[i]);
+	free(namelist);
+
+	return res;
+}
+
+int sensors_init(FILE *input)
+{
+	int res;
+
+	if (!sensors_init_sysfs())
+		return -SENSORS_ERR_KERNEL;
+	if ((res = sensors_read_sysfs_bus()) ||
+	    (res = sensors_read_sysfs_chips()))
+		goto exit_cleanup;
+
+	if (input) {
+		res = parse_config(input, NULL);
+		if (res)
+			goto exit_cleanup;
+	} else {
+		const char* name;
+
+		/* No configuration provided, use default */
+		input = fopen(name = DEFAULT_CONFIG_FILE, "r");
+		if (!input && errno == ENOENT)
+			input = fopen(name = ALT_CONFIG_FILE, "r");
+		if (input) {
+			res = parse_config(input, name);
+			fclose(input);
+			if (res)
+				goto exit_cleanup;
+
+		} else if (errno != ENOENT) {
+			sensors_parse_error_wfn(strerror(errno), name, 0);
+			res = -SENSORS_ERR_PARSE;
+			goto exit_cleanup;
+		}
+
+		/* Also check for files in default directory */
+		res = add_config_from_dir(DEFAULT_CONFIG_DIR);
+		if (res)
+			goto exit_cleanup;
+	}
+
+	return 0;
+
+exit_cleanup:
+	sensors_cleanup();
+	return res;
+}
+
+static void free_chip_name(sensors_chip_name *name)
+{
+	free(name->prefix);
+	free(name->path);
+}
+
+static void free_chip_features(sensors_chip_features *features)
+{
+	int i;
+
+	for (i = 0; i < features->subfeature_count; i++)
+		free(features->subfeature[i].name);
+	free(features->subfeature);
+	for (i = 0; i < features->feature_count; i++)
+		free(features->feature[i].name);
+	free(features->feature);
+}
+
+static void free_label(sensors_label *label)
+{
+	free(label->name);
+	free(label->value);
+}
+
+void sensors_free_expr(sensors_expr *expr)
+{
+	if (expr->kind == sensors_kind_var)
+		free(expr->data.var);
+	else if (expr->kind == sensors_kind_sub) {
+		if (expr->data.subexpr.sub1)
+			sensors_free_expr(expr->data.subexpr.sub1);
+		if (expr->data.subexpr.sub2)
+			sensors_free_expr(expr->data.subexpr.sub2);
+	}
+	free(expr);
+}
+
+static void free_set(sensors_set *set)
+{
+	free(set->name);
+	sensors_free_expr(set->value);
+}
+
+static void free_compute(sensors_compute *compute)
+{
+	free(compute->name);
+	sensors_free_expr(compute->from_proc);
+	sensors_free_expr(compute->to_proc);
+}
+
+static void free_ignore(sensors_ignore *ignore)
+{
+	free(ignore->name);
+}
+
+static void free_chip(sensors_chip *chip)
+{
+	int i;
+
+	for (i = 0; i < chip->chips.fits_count; i++)
+		free_chip_name(&chip->chips.fits[i]);
+	free(chip->chips.fits);
+	chip->chips.fits_count = chip->chips.fits_max = 0;
+
+	for (i = 0; i < chip->labels_count; i++)
+		free_label(&chip->labels[i]);
+	free(chip->labels);
+	chip->labels_count = chip->labels_max = 0;
+
+	for (i = 0; i < chip->sets_count; i++)
+		free_set(&chip->sets[i]);
+	free(chip->sets);
+	chip->sets_count = chip->sets_max = 0;
+
+	for (i = 0; i < chip->computes_count; i++)
+		free_compute(&chip->computes[i]);
+	free(chip->computes);
+	chip->computes_count = chip->computes_max = 0;
+
+	for (i = 0; i < chip->ignores_count; i++)
+		free_ignore(&chip->ignores[i]);
+	free(chip->ignores);
+	chip->ignores_count = chip->ignores_max = 0;
+}
+
+void sensors_cleanup(void)
+{
+	int i;
+
+	for (i = 0; i < sensors_proc_chips_count; i++) {
+		free_chip_name(&sensors_proc_chips[i].chip);
+		free_chip_features(&sensors_proc_chips[i]);
+	}
+	free(sensors_proc_chips);
+	sensors_proc_chips = NULL;
+	sensors_proc_chips_count = sensors_proc_chips_max = 0;
+
+	for (i = 0; i < sensors_config_chips_count; i++)
+		free_chip(&sensors_config_chips[i]);
+	free(sensors_config_chips);
+	sensors_config_chips = NULL;
+	sensors_config_chips_count = sensors_config_chips_max = 0;
+	sensors_config_chips_subst = 0;
+
+	for (i = 0; i < sensors_proc_bus_count; i++)
+		free_bus(&sensors_proc_bus[i]);
+	free(sensors_proc_bus);
+	sensors_proc_bus = NULL;
+	sensors_proc_bus_count = sensors_proc_bus_max = 0;
+
+	for (i = 0; i < sensors_config_files_count; i++)
+		free(sensors_config_files[i]);
+	free(sensors_config_files);
+	sensors_config_files = NULL;
+	sensors_config_files_count = sensors_config_files_max = 0;
+}