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Amiga Format CD 7
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Amiga Format AFCD07 (Dec 1996, Issue 91).iso
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programming
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ixemul-complete
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ixemul
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library
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syslog.c
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1996-05-08
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/*
* Copyright (c) 1983, 1988 Regents of the University of California.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)syslog.c 5.34 (Berkeley) 6/26/91";
#endif /* LIBC_SCCS and not lint */
#define _KERNEL
#include "ixemul.h"
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/file.h>
#include <sys/syslog.h>
#include <sys/uio.h>
#include <sys/errno.h>
#include <netdb.h>
#include <string.h>
#include <stdarg.h>
#include <time.h>
#include <unistd.h>
#include <paths.h>
#include <stdio.h>
#define LogFile (u.u_LogFile)
#define LogStat (u.u_LogStat)
#define LogTag (u.u_LogTag)
#define LogFacility (u.u_LogFacility)
#define LogMask (u.u_LogMask)
/*
* syslog, vsyslog --
* print message on log file; output is intended for syslogd(8).
*/
void
vsyslog(int pri, const char *fmt, va_list ap)
{
register int cnt;
register char *p;
/* time_t now, time(); */
int fd, saved_errno;
char tbuf[2048], fmt_cpy[1024], *stdp = NULL, *ctime();
register struct user *usr = &u;
if (usr->u_ixnetbase) {
netcall(NET_vsyslog, pri, fmt, ap);
}
else {
/* check for invalid bits or no priority set */
if (!LOG_PRI(pri) || (pri &~ (LOG_PRIMASK|LOG_FACMASK)) ||
!(LOG_MASK(pri) & LogMask))
return;
saved_errno = errno;
/* set default facility if none specified */
if ((pri & LOG_FACMASK) == 0)
pri |= LogFacility;
/* build the message */
/* (void)syscall(SYS_time,&now); */
/*(void)sprintf(tbuf, "<%d>%.15s ", pri, ctime(&now) + 4); */
(void)sprintf(tbuf, "<%d> ", pri);
for (p = tbuf; *p; ++p);
if (LogStat & LOG_PERROR)
stdp = p;
if (LogTag) {
(void)strcpy(p, LogTag);
for (; *p; ++p);
}
if (LogStat & LOG_PID) {
(void)sprintf(p, "[%d]", getpid());
for (; *p; ++p)
;
}
if (LogTag) {
*p++ = ':';
*p++ = ' ';
}
/* substitute error message for %m */
{
register char ch, *t1, *t2;
char *strerror();
for (t1 = fmt_cpy; (ch = *fmt); ++fmt)
if (ch == '%' && fmt[1] == 'm') {
++fmt;
for (t2 = strerror(saved_errno);
(*t1 = *t2++); ++t1);
}
else
*t1++ = ch;
*t1 = '\0';
}
(void)vsprintf(p, fmt_cpy, ap);
cnt = strlen(tbuf);
/* output to stderr if requested */
if (LogStat & LOG_PERROR) {
struct iovec iov[2];
register struct iovec *v = iov;
v->iov_base = stdp;
v->iov_len = cnt - (stdp - tbuf);
++v;
v->iov_base = "\n";
v->iov_len = 1;
(void)syscall(SYS_writev,STDERR_FILENO, iov, 2);
}
/* see if should attempt the console */
if (!(LogStat&LOG_CONS))
return;
/*
* Output the message to the console; don't worry about blocking,
* if console blocks everything will. Make sure the error reported
* is the one from the syslogd failure.
*/
if ((fd = syscall(SYS_open,_PATH_CONSOLE, O_WRONLY, 0)) >= 0) {
(void)strcat(tbuf, "\r\n");
cnt += 2;
p = index(tbuf, '>') + 1;
(void)syscall(SYS_write,fd, p, cnt - (p - tbuf));
(void)syscall(SYS_close,fd);
}
}
}
void
syslog(int pri, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vsyslog(pri, fmt, ap);
va_end(ap);
}
void
openlog(const char *ident, int logstat, int logfac)
{
if (u.u_ixnetbase) {
netcall(NET_openlog, ident, logstat, logfac);
}
else {
if (ident != NULL)
LogTag = (char *)ident;
LogStat = logstat;
if (logfac != 0 && (logfac &~ LOG_FACMASK) == 0)
LogFacility = logfac;
}
}
void
closelog(void)
{
if (u.u_ixnetbase) {
netcall(NET_closelog);
}
else {
syscall(SYS_close,LogFile);
LogFile = -1;
}
}
/* setlogmask -- set the log mask level */
int
setlogmask(int pmask)
{
int omask;
if (u.u_ixnetbase)
return netcall(NET_setlogmask, pmask);
omask = LogMask;
if (pmask != 0)
LogMask = pmask;
return omask;
}