Loading...
gen/syslog.c Libc-320 /dev/null
--- Libc/Libc-320/gen/syslog.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1993
- *	The 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.
- */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/syslog.h>
-#include <sys/uio.h>
-#include <sys/un.h>
-#include <netdb.h>
-
-#include <errno.h>
-#include <fcntl.h>
-#include <paths.h>
-#include <stdio.h>
-#include <string.h>
-#include <time.h>
-#include <unistd.h>
-
-#ifdef __STDC__
-#include <stdarg.h>
-#else
-#include <varargs.h>
-#endif
-
-#include <crt_externs.h>
- 
-static int	LogFile = -1;		/* fd for log */
-static int	connected;		/* have done connect */
-static int	LogStat = 0;		/* status bits, set by openlog() */
-static const char *LogTag = NULL;	/* string to tag the entry with */
-static int	LogFacility = LOG_USER;	/* default facility code */
-static int	LogMask = 0xff;		/* mask of priorities to be logged */
-
-/*
- * syslog, vsyslog --
- *	print message on log file; output is intended for syslogd(8).
- */
-void
-#ifdef __STDC__
-syslog(int pri, const char *fmt, ...)
-#else
-syslog(pri, fmt, va_alist)
-	int pri;
-	char *fmt;
-	va_dcl
-#endif
-{
-	va_list ap;
-
-#ifdef __STDC__
-	va_start(ap, fmt);
-#else
-	va_start(ap);
-#endif
-	vsyslog(pri, fmt, ap);
-	va_end(ap);
-}
-
-void
-vsyslog(pri, fmt, ap)
-	int pri;
-	register const char *fmt;
-	va_list ap;
-{
-	register int cnt;
-	register char ch, *p, *t;
-	time_t now;
-	int fd, saved_errno;
-#define	TBUF_LEN	2048
-#define	FMT_LEN		1024
-	char *stdp, tbuf[TBUF_LEN], fmt_cpy[FMT_LEN];
-	int tbuf_left, fmt_left, prlen;
-
-#define	INTERNALLOG	LOG_ERR|LOG_CONS|LOG_PERROR|LOG_PID
-	/* Check for invalid bits. */
-	if (pri & ~(LOG_PRIMASK|LOG_FACMASK)) {
-		syslog(INTERNALLOG,
-		    "syslog: unknown facility/priority: %x", pri);
-		pri &= LOG_PRIMASK|LOG_FACMASK;
-	}
-
-	/* Check priority against setlogmask values. */
-	if (!(LOG_MASK(LOG_PRI(pri)) & LogMask))
-		return;
-
-	saved_errno = errno;
-
-	/* Set default facility if none specified. */
-	if ((pri & LOG_FACMASK) == 0)
-		pri |= LogFacility;
-
-	/* Build the message. */
-	
-	/*
- 	 * Although it's tempting, we can't ignore the possibility of
-	 * overflowing the buffer when assembling the "fixed" portion
-	 * of the message.  Strftime's "%h" directive expands to the
-	 * locale's abbreviated month name, but if the user has the
-	 * ability to construct to his own locale files, it may be
-	 * arbitrarily long.
-	 */
-	(void)time(&now);
-
-	p = tbuf;  
-	tbuf_left = TBUF_LEN;
-	
-#define	DEC()	\
-	do {					\
-		if (prlen >= tbuf_left)		\
-			prlen = tbuf_left - 1;	\
-		p += prlen;			\
-		tbuf_left -= prlen;		\
-	} while (0)
-
-	prlen = snprintf(p, tbuf_left, "<%d>", pri);
-	DEC();
-
-	prlen = strftime(p, tbuf_left, "%h %e %T ", localtime(&now));
-	DEC();
-
-	if (LogStat & LOG_PERROR)
-		stdp = p;
-	if (LogTag == NULL)
-		LogTag = *(*_NSGetArgv());
-	if (LogTag != NULL) {
-		prlen = snprintf(p, tbuf_left, "%s", LogTag);
-		DEC();
-	}
-	if (LogStat & LOG_PID) {
-		prlen = snprintf(p, tbuf_left, "[%d]", getpid());
-		DEC();
-	}
-	if (LogTag != NULL) {
-		if (tbuf_left > 1) {
-			*p++ = ':';
-			tbuf_left--;
-		}
-		if (tbuf_left > 1) {
-			*p++ = ' ';
-			tbuf_left--;
-		}
-	}
-
-	/* 
-	 * We wouldn't need this mess if printf handled %m, or if 
-	 * strerror() had been invented before syslog().
-	 */
-	for (t = fmt_cpy, fmt_left = FMT_LEN; (ch = *fmt); ++fmt) {
-		if (ch == '%' && fmt[1] == 'm') {
-			++fmt;
-			prlen = snprintf(t, fmt_left, "%s",
-			    strerror(saved_errno));
-			if (prlen >= fmt_left)
-				prlen = fmt_left - 1;
-			t += prlen;
-			fmt_left -= prlen;
-		} else {
-			if (fmt_left > 1) {
-				*t++ = ch;
-				fmt_left--;
-			}
-		}
-	}
-	*t = '\0';
-
-	prlen = vsnprintf(p, tbuf_left, fmt_cpy, ap);
-	DEC();
-	cnt = p - tbuf;
-
-	/* Output to stderr if requested. */
-	if (LogStat & LOG_PERROR) {
-		struct iovec iov[2];
-
-		iov[0].iov_base = stdp;
-		iov[0].iov_len = cnt - (stdp - tbuf);
-		iov[1].iov_base = "\n";
-		iov[1].iov_len = 1;
-		(void)writev(STDERR_FILENO, iov, 2);
-	}
-
-	/* Get connected, output the message to the local logger. */
-	if (!connected)
-		openlog(LogTag, LogStat | LOG_NDELAY, 0);
-	if (send(LogFile, tbuf, cnt, 0) >= 0)
-		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 (LogStat & LOG_CONS &&
-	    (fd = open(_PATH_CONSOLE, O_WRONLY, 0)) >= 0) {
-		struct iovec iov[2];
-		
-		p = strchr(tbuf, '>') + 1;
-		iov[0].iov_base = p;
-		iov[0].iov_len = cnt - (p - tbuf);
-		iov[1].iov_base = "\r\n";
-		iov[1].iov_len = 2;
-		(void)writev(fd, iov, 2);
-		(void)close(fd);
-	}
-}
-
-static struct sockaddr_un SyslogAddr;	/* AF_UNIX address of local logger */
-
-void
-openlog(ident, logstat, logfac)
-	const char *ident;
-	int logstat, logfac;
-{
-	if (ident != NULL)
-		LogTag = ident;
-	LogStat = logstat;
-	if (logfac != 0 && (logfac &~ LOG_FACMASK) == 0)
-		LogFacility = logfac;
-
-	if (LogFile == -1) {
-		SyslogAddr.sun_family = AF_UNIX;
-		(void)strncpy(SyslogAddr.sun_path, _PATH_LOG,
-		    sizeof(SyslogAddr.sun_path));
-		if (LogStat & LOG_NDELAY) {
-			if ((LogFile = socket(AF_UNIX, SOCK_DGRAM, 0)) == -1)
-				return;
-			(void)fcntl(LogFile, F_SETFD, 1);
-		}
-	}
-	if (LogFile != -1 && !connected)
-		if (connect(LogFile, (struct sockaddr *)&SyslogAddr, sizeof(SyslogAddr)) == -1) {
-			(void)close(LogFile);
-			LogFile = -1;
-		} else
-			connected = 1;
-}
-
-void
-closelog()
-{
-	(void)close(LogFile);
-	LogFile = -1;
-	connected = 0;
-}
-
-/* setlogmask -- set the log mask level */
-int
-setlogmask(pmask)
-	int pmask;
-{
-	int omask;
-
-	omask = LogMask;
-	if (pmask != 0)
-		LogMask = pmask;
-	return (omask);
-}