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/* This file is part of Ping903.
Copyright (C) 2020 Sergey Poznyakoff
Ping903 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 3, or (at your option)
any later version.
Ping903 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 Ping903. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <syslog.h>
#include "ping903.h"
#include "json.h"
char *progname;
static int facility = LOG_DAEMON;
static void
vlog_syslog(int prio, char const *fmt, va_list ap)
{
vsyslog(prio, fmt, ap);
}
static void
vlog_stderr(int prio, char const *fmt, va_list ap)
{
fprintf(stderr, "%s: ", progname);
vfprintf(stderr, fmt, ap);
fputc('\n', stderr);
}
static void (*vlog)(int prio, char const *fmt, va_list ap) = vlog_stderr;
void
vlogger(int prio, char const *fmt, va_list ap)
{
vlog(prio, fmt, ap);
}
void
fatal(char const *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vlog(LOG_CRIT, fmt, ap);
va_end(ap);
}
void
error(char const *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vlog(LOG_ERR, fmt, ap);
va_end(ap);
}
void
info(char const *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vlog(LOG_INFO, fmt, ap);
va_end(ap);
}
void
syslog_enable(void)
{
openlog(progname, LOG_PID, facility);
vlog = vlog_syslog;
}
static struct facility {
char const *s;
int n;
} facilities[] = {
{ "auth", LOG_AUTH },
{ "authpriv", LOG_AUTHPRIV },
{ "cron", LOG_CRON },
{ "daemon", LOG_DAEMON },
{ "ftp", LOG_FTP },
{ "kern", LOG_KERN },
{ "lpr", LOG_LPR },
{ "mail", LOG_MAIL },
{ "news", LOG_NEWS },
#ifdef LOG_AUTH
{ "security", LOG_AUTH },
#endif
{ "syslog", LOG_SYSLOG },
{ "user", LOG_USER },
{ "uucp", LOG_UUCP },
{ "local0", LOG_LOCAL0 },
{ "local1", LOG_LOCAL1 },
{ "local2", LOG_LOCAL2 },
{ "local3", LOG_LOCAL3 },
{ "local4", LOG_LOCAL4 },
{ "local5", LOG_LOCAL5 },
{ "local6", LOG_LOCAL6 },
{ "local7", LOG_LOCAL7 },
{ NULL, -1 }
};
int
set_log_facility(char const *arg)
{
struct facility *f;
for (f = facilities; f->s; f++)
if (strcmp(f->s, arg) == 0)
break;
if (f->n == -1)
return -1;
facility = f->n;
return 0;
}
int
cf_syslog_facility(int mode, union cf_callback_arg *arg, void *data)
{
if (mode == CF_PARSE) {
if (set_log_facility(arg->input.val)) {
error("%s:%d: unknown syslog facility",
arg->input.file, arg->input.line);
return CF_RET_FAIL;
}
} else {
struct facility *f;
for (f = facilities; f->s; f++) {
if (f->n == facility) {
struct json_value *val = json_new_string(f->s);
if (!val) {
fatal("out of memory");
return CF_RET_FAIL;
}
arg->output = val;
return CF_RET_OK;
}
}
fatal("can't decode the current facility; please report");
return CF_RET_FAIL;
}
return CF_RET_OK;
}
void
set_progname(char const *arg)
{
char *p = strrchr(arg, '/');
if (p)
p++;
else
p = (char*) arg;
progname = p;
}
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