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/***************************************************************************
*
* Copyright (c) 1999 Balázs Scheidler
* Copyright (c) 1999-2001 BalaBit IT Ltd.
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Inspired by nsyslog, originally written by Darren Reed.
*
* $Id: afuser.c,v 1.9 2003/01/31 14:26:48 bazsi Exp $
*
***************************************************************************/
#include "afuser.h"
#include "destinations.h"
#include "format.h"
#include "utils.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <utmp.h>
#include "afuser.c.x"
#include "macros.h"
/* CLASS:
(class
(name afuser_dest)
(super log_dest_driver)
(vars
(username string)
(template_output string)
(template_escape . int)
(cfg object syslog_config)))
*/
void
afuser_dest_set_template(struct log_dest_driver *c, char *t)
{
CAST(afuser_dest, self, c);
self->template_output = c_format("%z", t);
}
void
afuser_dest_set_template_escape(struct log_dest_driver *c, int enable)
{
CAST(afuser_dest, self, c);
self->template_escape = enable;
}
static int
do_init_afuser_dest(struct log_handler *c,
struct syslog_config *cfg,
struct persistent_config *persistent)
{
CAST(afuser_dest, self, c);
self->cfg = cfg;
return ST_OK | ST_GOON;
}
static void
do_handle_afuser_log(struct log_handler *c, struct log_info *msg)
{
CAST(afuser_dest, self, c);
struct utmp *ut;
struct ol_string *msg_line;
if (self->template_output) {
msg_line = c_format("%fS",
expand_macros(
self->cfg,
self->template_output,
self->template_escape, msg));
} else {
msg_line = c_format("%S %S %S\n",
msg->date, msg->host, msg->msg);
}
while ((ut = getutent())) {
#if HAVE_MODERN_UTMP
if (ut->ut_type == USER_PROCESS &&
((self->username->length == 1 &&
self->username->data[0] == '*') ||
(self->username->length == strlen(ut->ut_user) &&
memcmp(self->username->data, ut->ut_user, self->username->length) == 0))) {
#else
if ((self->username->length == 1 &&
self->username->data[0] == '*') ||
(self->username->length == strlen(ut->ut_name) &&
memcmp(self->username->data, ut->ut_name, self->username->length) == 0)) {
#endif
char line[128];
int fd;
strcpy(line, "/dev/");
strcat(line, ut->ut_line);
fd = open(line, O_NOCTTY | O_APPEND | O_WRONLY | O_NONBLOCK);
if (fd != -1) {
write_raw_with_poll(fd, msg_line->length, msg_line->data);
close(fd);
}
}
}
endutent();
ol_string_free(msg_line);
log_info_free(msg);
}
struct log_dest_driver *make_afuser_dest(const char *username)
{
NEW(afuser_dest, self);
self->super.super.init = do_init_afuser_dest;
self->super.super.handler = do_handle_afuser_log;
self->username = c_format("%z", username);
return &self->super;
}
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