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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2008 David Zeuthen <davidz@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <fcntl.h>
#include <pwd.h>
#include <grp.h>
#include <linux/fs.h>
#include <sys/ioctl.h>
#include "sysfs-utils.h"
double
sysfs_get_double (const char *dir, const char *attribute)
{
double result;
char *contents;
char *filename;
result = 0.0;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
result = atof (contents);
g_free (contents);
}
g_free (filename);
return result;
}
gboolean
sysfs_file_contains (const char *dir, const char *attribute, const char *string)
{
gboolean result;
char *filename;
char *s;
result = FALSE;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_get_contents (filename, &s, NULL, NULL)) {
result = (strstr(s, string) != NULL);
g_free (s);
}
g_free (filename);
return result;
}
char *
sysfs_get_string (const char *dir, const char *attribute)
{
char *result;
char *filename;
result = NULL;
filename = g_build_filename (dir, attribute, NULL);
if (!g_file_get_contents (filename, &result, NULL, NULL)) {
result = g_strdup ("");
}
g_free (filename);
return result;
}
int
sysfs_get_int (const char *dir, const char *attribute)
{
int result;
char *contents;
char *filename;
result = 0;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
result = atoi (contents);
g_free (contents);
}
g_free (filename);
return result;
}
guint
sysfs_get_hex (const char *dir, const char *attribute)
{
guint result;
char *contents;
char *filename;
result = 0;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
result = strtol (contents, (char **) NULL, 16);
g_free (contents);
}
g_free (filename);
return result;
}
gboolean
sysfs_get_bool (const char *dir, const char *attribute)
{
gboolean result = FALSE;
char *contents;
char *filename;
result = 0;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
if (strcmp (contents, "1"))
result = TRUE;
g_free (contents);
}
g_free (filename);
return result;
}
guint64
sysfs_get_uint64 (const char *dir, const char *attribute)
{
guint64 result;
char *contents;
char *filename;
result = 0;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_get_contents (filename, &contents, NULL, NULL)) {
result = atoll (contents);
g_free (contents);
}
g_free (filename);
return result;
}
gboolean
sysfs_file_exists (const char *dir, const char *attribute)
{
gboolean result;
char *filename;
result = FALSE;
filename = g_build_filename (dir, attribute, NULL);
if (g_file_test (filename, G_FILE_TEST_EXISTS)) {
result = TRUE;
}
g_free (filename);
return result;
}
char *
_dupv8 (const char *s)
{
const char *end_valid;
if (!g_utf8_validate (s,
-1,
&end_valid)) {
g_warning ("The string '%s' is not valid UTF-8. Invalid characters begins at '%s'", s, end_valid);
return g_strndup (s, end_valid - s);
} else {
return g_strdup (s);
}
}
char *
sysfs_resolve_link (const char *dir, const char *attribute)
{
char *full_path;
char link_path[PATH_MAX];
char resolved_path[PATH_MAX];
ssize_t num;
gboolean found_it;
found_it = FALSE;
full_path = g_build_filename (dir, attribute, NULL);
//egg_warning ("attribute='%s'", attribute);
//egg_warning ("full_path='%s'", full_path);
num = readlink (full_path, link_path, sizeof (link_path) - 1);
if (num != -1) {
char *absolute_path;
link_path[num] = '\0';
//egg_warning ("link_path='%s'", link_path);
absolute_path = g_build_filename (dir, link_path, NULL);
//egg_warning ("absolute_path='%s'", absolute_path);
if (realpath (absolute_path, resolved_path) != NULL) {
//egg_warning ("resolved_path='%s'", resolved_path);
found_it = TRUE;
}
g_free (absolute_path);
}
g_free (full_path);
if (found_it)
return g_strdup (resolved_path);
else
return NULL;
}
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