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/*
* log.c - Message logging to monitors and syslog.
*
* Copyright (c) 1999 Mike Jagdis.
* All rights reserved. Please see the file LICENSE which should be
* distributed with this software for terms of use.
*/
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
#include "diald.h"
static char *
xstrerror(int n)
{
static char buf[30];
if (n >= 0 && n < sys_nerr)
return (char *)sys_errlist[n];
sprintf(buf, "Error code %d\n", n);
return buf;
}
void
mon_syslog(int pri, char *fmt, ...)
{
va_list ap;
int saved_errno;
int l1, l2;
char c, *p, *q, fmt2[1024], buf[2048];
saved_errno = errno;
va_start(ap, fmt);
l1 = snprintf(fmt2, sizeof(fmt2)-1,
"<%c>MESSAGE\n%s ", pri+'0', cdate(time(0)));
for (p = fmt2+l1; (c = *fmt) && p < fmt2+sizeof(fmt2)-2; fmt++) {
if (c == '%' && fmt[1] == 'm') {
fmt++;
for (q = xstrerror(saved_errno); p < fmt2+sizeof(fmt2)-2; p++,q++)
*p = *q;
} else {
*(p++) = c;
}
}
*p = '\0';
l2 = vsnprintf(buf, sizeof(buf)-2, fmt2, ap);
va_end(ap);
syslog(pri, "%s", buf+l1);
buf[l2++] = '\n';
buf[l2] = '\0';
mon_write(MONITOR_MESSAGE, buf, l2);
}
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