vsyslog.c
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上传日期:2007-01-04
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- /* $Id: vsyslog.c,v 1.6 1999/08/30 17:28:14 karls Exp $ */
- #ifdef HAVE_CONFIG_H
- #include "autoconf.h"
- #endif /* HAVE_CONFIG_H */
- #include "common.h"
- /* attempt to be clever; construct string and call syslog */
- #if !HAVE_VSYSLOG
- /*
- * Copyright (c) 1983, 1988, 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.
- */
- #if defined(LIBC_SCCS) && !defined(lint)
- static char rcsid[] = "$OpenBSD: syslog.c,v 1.8 1998/03/19 00:30:03 millert Exp $";
- #endif /* LIBC_SCCS and not lint */
- void
- vsyslog(pri, fmt, ap)
- int pri;
- register const char *fmt;
- va_list ap;
- {
- register char ch, *t;
- int saved_errno;
- #define TBUF_LEN 2048
- #define FMT_LEN 1024
- char tbuf[TBUF_LEN], fmt_cpy[FMT_LEN];
- int fmt_left, prlen;
- saved_errno = errno;
- /* Build the message. */
- /*
- * 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 = ' ';
- prlen = vsnprintf(tbuf, TBUF_LEN, fmt_cpy, ap);
- syslog(pri, tbuf);
- return;
- }
- #else
- static void avoid_error __P((void));
- static void avoid_error()
- {
- avoid_error();
- }
- #endif /* !HAVE_VSYSLOG */