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/*
* log.c: handles the irc session logging functions
*
* Written By Michael Sandrof
*
* Copyright (c) 1990 Michael Sandrof.
* Copyright (c) 1991, 1992 Troy Rollo.
* Copyright (c) 1992-2014 Matthew R. Green.
* All rights reserved.
*
* 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 above 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
*/
#include "irc.h"
IRCII_RCSID("@(#)$eterna: log.c,v 1.36 2015/11/20 09:23:54 mrg Exp $");
#include <sys/stat.h>
#include "log.h"
#include "vars.h"
#include "output.h"
#include "ircaux.h"
static FILE *irclog_fp;
void
do_log(int flag, u_char *logfile, FILE **fpp)
{
time_t t;
if (logfile == NULL)
{
*fpp = NULL;
return;
}
t = time(0);
if (flag)
{
if (*fpp)
say("Logging is already on");
else
{
#ifdef DAEMON_UID
if (getuid() == DAEMON_UID)
{
say("You are not permitted to use LOG");
/* *fpp = NULL; unused */
}
else
#endif /* DAEMON_UID */
{
say("Starting logfile %s", logfile);
if ((*fpp = fopen(CP(logfile), "a")) != NULL)
{
#ifdef NEED_FCHMOD
chmod(logfile, S_IREAD | S_IWRITE);
#else
fchmod(fileno(*fpp),S_IREAD | S_IWRITE);
#endif /* NEED_FCHMOD */
fprintf(*fpp, "IRC log started %.16s\n",
ctime(&t));
fflush(*fpp);
}
else
{
say("Couldn't open logfile %s: %s",
logfile, strerror(errno));
*fpp = NULL;
}
}
}
}
else
{
if (*fpp)
{
fprintf(*fpp, "IRC log ended %.16s\n", ctime(&t));
fflush(*fpp);
fclose(*fpp);
*fpp = NULL;
say("Logfile ended");
}
}
return;
}
/* logger: if flag is 0, logging is turned off, else it's turned on */
void
logger(int flag)
{
u_char *logfile;
if ((logfile = get_string_var(LOGFILE_VAR)) == NULL)
{
say("You must set the LOGFILE variable first!");
set_int_var(LOG_VAR, 0);
return;
}
do_log(flag, logfile, &irclog_fp);
if ((irclog_fp == NULL) && flag)
set_int_var(LOG_VAR, 0);
}
/*
* set_log_file: sets the log file name. If logging is on already, this
* closes the last log file and reopens it with the new name. This is called
* automatically when you SET LOGFILE.
*/
void
set_log_file(u_char *filename)
{
u_char *expanded;
if (filename)
{
if (my_strcmp(filename, get_string_var(LOGFILE_VAR)))
expanded = expand_twiddle(filename);
else
expanded = expand_twiddle(get_string_var(LOGFILE_VAR));
set_string_var(LOGFILE_VAR, expanded);
new_free(&expanded);
if (irclog_fp)
{
logger(0);
logger(1);
}
}
}
/*
* add_to_log: add the given line to the log file. If no log file is open
* this function does nothing.
*/
void
add_to_log(FILE *fp, u_char *line)
{
if (fp == NULL)
fp = irclog_fp;
if (fp)
{
fprintf(fp, "%s\n", line);
fflush(fp);
}
}
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