/* -*- Mode: c++; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*-
**
** Copyright (C) 1995-2008 Opera Software AS.  All rights reserved.
**
** This file is part of the Opera web browser.  It may not be distributed
** under any circumstances.
**
*/

/* crypto/addon/utcprint.c adapted from crypto/asn1/t_x509.c */
/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@mincom.oz.au).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@mincom.oz.au).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * 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 copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@mincom.oz.au)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */
#include "modules/libopeay/openssl/cryptlib.h"
#include "modules/libopeay/openssl/asn1.h"
#include "modules/pi/OpLocale.h"

int ASN1_UTCTIME_unisprint(uni_char *sp, ASN1_UTCTIME *tm_string)
    {
    char *v;
    int n,i;
    int y=0,M=0;

	struct tm time_data;

    n=tm_string->length;
    v=(char *)tm_string->data;

	if (n < (tm_string->type == V_ASN1_GENERALIZEDTIME ? 12 : 10)) goto err;
	n =(tm_string->type == V_ASN1_GENERALIZEDTIME ? 12 : 10);
    for (i=0; i<n; i++)
        if ((v[i] > '9') || (v[i] < '0')) goto err;
    
	y= (v[0]-'0')*10+(v[1]-'0');
	if(n>10)
	{
		v+=2;
		y= y*100 + (v[0]-'0')*10+(v[1]-'0') -1900;
	}
    if (y < 70) y+=100;
	time_data.tm_year = y;

    M= (v[2]-'0')*10+(v[3]-'0');
    if ((M > 12) || (M < 1)) goto err;
	time_data.tm_mon = M-1;

	time_data.tm_mday = (v[4]-'0')*10+(v[5]-'0');
	time_data.tm_hour = (v[6]-'0')*10+(v[7]-'0');
	time_data.tm_min =  (v[8]-'0')*10+(v[9]-'0');
    if (    (v[10] >= '0') && (v[10] <= '9') &&
        (v[11] >= '0') && (v[11] <= '9'))
		time_data.tm_sec =  (v[10]-'0')*10+(v[11]-'0');

	time_data.tm_isdst = 0;
	time_data.tm_wday = 0;
	time_data.tm_yday = 0;
	time_data.tm_sec = 0;
#ifdef UTIL_CHECKED_STRFTIME
	if (OpStatus::IsError(CheckedStrftime(sp, 100, UNI_L("%x %X GMT"), &time_data)))
		return 0;
#else
	if(g_oplocale->op_strftime(sp, 100, UNI_L("%x %X GMT"), &time_data) > 100)
		return 0;
#endif
	return(1);
err:
    uni_strcpy(sp,UNI_L("Bad time value"));
    return(0);
    }
