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/***************************************************************************
*
* up-util.c : utilities
*
* Copyright (C) 2006, 2007 Jean-Yves Lefort <jylefort@FreeBSD.org>
*
* 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
*
**************************************************************************/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/sysctl.h>
#include <glib.h>
#include "egg-debug.h"
#include "up-util.h"
gboolean
up_has_sysctl (const gchar *format, ...)
{
va_list args;
gchar *name;
size_t value_len;
gboolean status;
g_return_val_if_fail (format != NULL, FALSE);
va_start (args, format);
name = g_strdup_vprintf (format, args);
va_end (args);
status = sysctlbyname (name, NULL, &value_len, NULL, 0) == 0;
g_free (name);
return status;
}
gboolean
up_get_int_sysctl (int *value, GError **err, const gchar *format, ...)
{
va_list args;
gchar *name;
size_t value_len = sizeof(int);
gboolean status;
g_return_val_if_fail (value != NULL, FALSE);
g_return_val_if_fail (format != NULL, FALSE);
va_start (args, format);
name = g_strdup_vprintf (format, args);
va_end (args);
status = sysctlbyname (name, value, &value_len, NULL, 0) == 0;
if (!status)
g_set_error(err, 0, 0, "%s", g_strerror (errno));
g_free (name);
return status;
}
gchar *
up_get_string_sysctl (GError **err, const gchar *format, ...)
{
va_list args;
gchar *name;
size_t value_len;
gchar *str = NULL;
g_return_val_if_fail(format != NULL, FALSE);
va_start (args, format);
name = g_strdup_vprintf (format, args);
va_end (args);
if (sysctlbyname (name, NULL, &value_len, NULL, 0) == 0) {
str = g_new (char, value_len + 1);
if (sysctlbyname (name, str, &value_len, NULL, 0) == 0)
str[value_len] = 0;
else {
g_free (str);
str = NULL;
}
}
if (!str)
g_set_error (err, 0, 0, "%s", g_strerror(errno));
g_free(name);
return str;
}
/**
* up_util_make_safe_string:
*
* This is adapted from linux/up-device-supply.c.
**/
gchar *
up_make_safe_string (const gchar *text)
{
guint i;
guint idx = 0;
gchar *ret;
/* no point in checking */
if (text == NULL)
return NULL;
ret = g_strdup (text);
/* shunt up only safe chars */
for (i = 0; ret[i] != '\0'; i++) {
if (g_ascii_isprint (ret[i])) {
/* only copy if the address is going to change */
if (idx != i)
ret[idx] = ret[i];
idx++;
} else {
egg_debug ("invalid char '%c'", ret[i]);
}
}
/* ensure null terminated */
ret[idx] = '\0';
return ret;
}
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