nntp_date.c
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/* GNU Mailutils -- a suite of utilities for electronic mail
Copyright (C) 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
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 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 Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string.h>
#include <errno.h>
#include <mailutils/sys/nntp.h>
static int
mu_nntp_parse_date (mu_nntp_t nntp, int code, unsigned int *year, unsigned int *month, unsigned int *day,
unsigned int *hour, unsigned int *min, unsigned int *sec);
int
mu_nntp_date (mu_nntp_t nntp, unsigned int *year, unsigned int *month, unsigned int *day,
unsigned int *hour, unsigned int *min, unsigned int *sec)
{
int status;
unsigned long dummy = 0;
char *buf;
if (nntp == NULL)
return EINVAL;
switch (nntp->state)
{
case MU_NNTP_NO_STATE:
status = mu_nntp_writeline (nntp, "DATE\r\n");
MU_NNTP_CHECK_ERROR (nntp, status);
mu_nntp_debug_cmd (nntp);
nntp->state = MU_NNTP_DATE;
case MU_NNTP_DATE:
status = mu_nntp_send (nntp);
MU_NNTP_CHECK_EAGAIN (nntp, status);
nntp->acknowledge = 0;
nntp->state = MU_NNTP_DATE_ACK;
case MU_NNTP_DATE_ACK:
status = mu_nntp_response (nntp, NULL, 0, NULL);
MU_NNTP_CHECK_EAGAIN (nntp, status);
mu_nntp_debug_ack (nntp);
MU_NNTP_CHECK_CODE(nntp, MU_NNTP_RESP_CODE_SERVER_DATE);
nntp->state = MU_NNTP_NO_STATE;
/* parse the answer now. */
status = mu_nntp_parse_date(nntp, MU_NNTP_RESP_CODE_SERVER_DATE, year, month, day, hour, min, sec);
MU_NNTP_CHECK_ERROR (nntp, status);
break;
/* They must deal with the error first by reopening. */
case MU_NNTP_ERROR:
status = ECANCELED;
break;
default:
status = EINPROGRESS;
}
return status;
}
static int
mu_nntp_parse_date (mu_nntp_t nntp, int code, unsigned int *year, unsigned int *month, unsigned int *day,
unsigned int *hour, unsigned int *min, unsigned int *sec)
{
unsigned int dummy = 0;
char *buf;
char format[32];
if (year == NULL)
year = &dummy;
if (month == NULL)
month = &dummy;
if (day == NULL)
day = &dummy;
if (hour == NULL)
hour = &dummy;
if (min == NULL)
min = &dummy;
if (sec == NULL)
sec = &dummy;
sprintf (format, "%d %%4d%%2d%%2d%%2d%%2d%%2d", code);
sscanf (nntp->ack.buf, format, year, month, day, hour, min, sec);
return 0;
}