/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* Copyright (C) 2003 Imendio AB
*
* This program 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 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:lm-utils
* @Title: Miscellaneous Utility Functions
* @Short_description: Miscellaneous Utility Functions
*
* Functions to help application developers when writing XMPP applications using Loudmouth.
*/
#include <config.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <glib.h>
#ifndef G_OS_WIN32
#include <unistd.h>
#endif
#ifdef HAVE_IDN
#include <stringprep.h>
#include <punycode.h>
#include <idna.h>
#endif
#include "lm-internals.h"
#include "lm-utils.h"
LmCallback *
_lm_utils_new_callback (gpointer func,
gpointer user_data,
GDestroyNotify notify)
{
LmCallback *cb;
cb = g_new0 (LmCallback, 1);
cb->func = func;
cb->user_data = user_data;
cb->notify = notify;
return cb;
}
void
_lm_utils_free_callback (LmCallback *cb)
{
if (!cb) {
return;
}
if (cb->notify) {
(* cb->notify) (cb->user_data);
}
g_free (cb);
}
gchar *
_lm_utils_generate_id (void)
{
static guint last_id = 0;
GTimeVal tv;
glong val;
g_get_current_time (&tv);
val = (tv.tv_sec & tv.tv_usec) + last_id++;
return g_strdup_printf ("%ld%ld", val, tv.tv_usec);
}
gchar*
_lm_utils_hostname_to_punycode (const gchar *hostname)
{
#ifdef HAVE_IDN
char *s;
uint32_t *q;
int rc;
gchar *result;
q = stringprep_utf8_to_ucs4 (hostname, -1, NULL);
if (q == NULL) {
return g_strdup (hostname);
}
rc = idna_to_ascii_4z (q, &s, IDNA_ALLOW_UNASSIGNED);
free(q);
if (rc != IDNA_SUCCESS) {
return g_strdup (hostname);
}
/* insures result is allocated through glib */
result = g_strdup(s);
free(s);
return result;
#else
return g_strdup(hostname);
#endif
}
/**
* lm_utils_get_localtime:
* @stamp: An XMPP timestamp
*
* Converts an XMPP timestamp to a struct tm showing local time.
*
* Return value: The local time struct.
**/
struct tm *
lm_utils_get_localtime (const gchar *stamp)
{
struct tm tm;
time_t t;
gint year, month;
g_return_val_if_fail (stamp != NULL, NULL);
/* 20021209T23:51:30 */
sscanf (stamp, "%4d%2d%2dT%2d:%2d:%2d",
&year, &month, &tm.tm_mday, &tm.tm_hour,
&tm.tm_min, &tm.tm_sec);
tm.tm_year = year - 1900;
tm.tm_mon = month - 1;
tm.tm_isdst = -1;
t = mktime (&tm);
#if defined(HAVE_TM_GMTOFF)
t += tm.tm_gmtoff;
#elif defined(HAVE_TIMEZONE)
t -= timezone;
if (tm.tm_isdst > 0) {
t += 3600;
}
#endif
return localtime (&t);
}