364 lines
9.5 KiB
C
364 lines
9.5 KiB
C
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/* errwarn.c
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Errors and warnings... */
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/*
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* Copyright (c) 1995 RadioMail Corporation.
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* Copyright (c) 1996-2000 Internet Software Consortium.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of The Internet Software Consortium nor the names
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* of its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This software was written for RadioMail Corporation by Ted Lemon
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* under a contract with Vixie Enterprises. Further modifications have
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* been made for the Internet Software Consortium under a contract
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* with Vixie Laboratories.
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*/
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#ifndef lint
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static char copyright[] =
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"$Id: errwarn.c,v 1.1.1.1 2001/08/03 11:35:37 drochner Exp $ Copyright (c) 1996 The Internet Software Consortium. All rights reserved.\n";
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#endif /* not lint */
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#include <omapip/omapip_p.h>
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#include <errno.h>
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#ifdef DEBUG
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int log_perror = -1;
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#else
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int log_perror = 1;
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#endif
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int log_priority;
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void (*log_cleanup) (void);
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#define CVT_BUF_MAX 1023
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static char mbuf [CVT_BUF_MAX + 1];
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static char fbuf [CVT_BUF_MAX + 1];
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/* Log an error message, then exit... */
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void log_fatal (const char * fmt, ... )
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{
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va_list list;
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do_percentm (fbuf, fmt);
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va_start (list, fmt);
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vsnprintf (mbuf, sizeof mbuf, fbuf, list);
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va_end (list);
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#ifndef DEBUG
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syslog (log_priority | LOG_ERR, "%s", mbuf);
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#endif
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/* Also log it to stderr? */
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if (log_perror) {
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write (2, mbuf, strlen (mbuf));
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write (2, "\n", 1);
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}
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#if !defined (NOMINUM)
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log_error ("%s", "");
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log_error ("If you did not get this software from ftp.isc.org, please");
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log_error ("get the latest from ftp.isc.org and install that before");
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log_error ("requesting help.");
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log_error ("%s", "");
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log_error ("If you did get this software from ftp.isc.org and have not");
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log_error ("yet read the README, please read it before requesting help.");
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log_error ("If you intend to request help from the dhcp-server@isc.org");
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log_error ("mailing list, please read the section on the README about");
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log_error ("submitting bug reports and requests for help.");
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log_error ("%s", "");
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log_error ("Please do not under any circumstances send requests for");
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log_error ("help directly to the authors of this software - please");
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log_error ("send them to the appropriate mailing list as described in");
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log_error ("the README file.");
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log_error ("%s", "");
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log_error ("exiting.");
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#endif
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if (log_cleanup)
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(*log_cleanup) ();
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exit (1);
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}
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/* Log an error message... */
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int log_error (const char * fmt, ...)
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{
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va_list list;
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do_percentm (fbuf, fmt);
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va_start (list, fmt);
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vsnprintf (mbuf, sizeof mbuf, fbuf, list);
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va_end (list);
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#ifndef DEBUG
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syslog (log_priority | LOG_ERR, "%s", mbuf);
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#endif
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if (log_perror) {
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write (2, mbuf, strlen (mbuf));
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write (2, "\n", 1);
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}
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return 0;
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}
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/* Log a note... */
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int log_info (const char *fmt, ...)
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{
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va_list list;
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do_percentm (fbuf, fmt);
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va_start (list, fmt);
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vsnprintf (mbuf, sizeof mbuf, fbuf, list);
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va_end (list);
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#ifndef DEBUG
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syslog (log_priority | LOG_INFO, "%s", mbuf);
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#endif
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if (log_perror) {
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write (2, mbuf, strlen (mbuf));
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write (2, "\n", 1);
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}
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return 0;
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}
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/* Log a debug message... */
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int log_debug (const char *fmt, ...)
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{
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va_list list;
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do_percentm (fbuf, fmt);
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va_start (list, fmt);
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vsnprintf (mbuf, sizeof mbuf, fbuf, list);
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va_end (list);
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#ifndef DEBUG
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syslog (log_priority | LOG_DEBUG, "%s", mbuf);
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#endif
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if (log_perror) {
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write (2, mbuf, strlen (mbuf));
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write (2, "\n", 1);
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}
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return 0;
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}
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/* Find %m in the input string and substitute an error message string. */
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void do_percentm (obuf, ibuf)
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char *obuf;
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const char *ibuf;
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{
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const char *s = ibuf;
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char *p = obuf;
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int infmt = 0;
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const char *m;
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int len = 0;
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while (*s) {
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if (infmt) {
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if (*s == 'm') {
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#ifndef __CYGWIN32__
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m = strerror (errno);
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#else
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m = pWSAError ();
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#endif
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if (!m)
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m = "<unknown error>";
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len += strlen (m);
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if (len > CVT_BUF_MAX)
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goto out;
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strcpy (p - 1, m);
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p += strlen (p);
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++s;
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} else {
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if (++len > CVT_BUF_MAX)
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goto out;
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*p++ = *s++;
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}
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infmt = 0;
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} else {
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if (*s == '%')
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infmt = 1;
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if (++len > CVT_BUF_MAX)
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goto out;
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*p++ = *s++;
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}
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}
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out:
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*p = 0;
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}
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#ifdef NO_STRERROR
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char *strerror (err)
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int err;
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{
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extern char *sys_errlist [];
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extern int sys_nerr;
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static char errbuf [128];
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if (err < 0 || err >= sys_nerr) {
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sprintf (errbuf, "Error %d", err);
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return errbuf;
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}
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return sys_errlist [err];
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}
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#endif /* NO_STRERROR */
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#ifdef _WIN32
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char *pWSAError ()
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{
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int err = WSAGetLastError ();
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switch (err)
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{
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case WSAEACCES:
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return "Permission denied";
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case WSAEADDRINUSE:
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return "Address already in use";
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case WSAEADDRNOTAVAIL:
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return "Cannot assign requested address";
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case WSAEAFNOSUPPORT:
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return "Address family not supported by protocol family";
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case WSAEALREADY:
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return "Operation already in progress";
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case WSAECONNABORTED:
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return "Software caused connection abort";
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case WSAECONNREFUSED:
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return "Connection refused";
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case WSAECONNRESET:
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return "Connection reset by peer";
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case WSAEDESTADDRREQ:
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return "Destination address required";
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case WSAEFAULT:
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return "Bad address";
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case WSAEHOSTDOWN:
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return "Host is down";
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case WSAEHOSTUNREACH:
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return "No route to host";
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case WSAEINPROGRESS:
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return "Operation now in progress";
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case WSAEINTR:
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return "Interrupted function call";
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case WSAEINVAL:
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return "Invalid argument";
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case WSAEISCONN:
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return "Socket is already connected";
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case WSAEMFILE:
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return "Too many open files";
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case WSAEMSGSIZE:
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return "Message too long";
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case WSAENETDOWN:
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return "Network is down";
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case WSAENETRESET:
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return "Network dropped connection on reset";
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case WSAENETUNREACH:
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return "Network is unreachable";
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case WSAENOBUFS:
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return "No buffer space available";
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case WSAENOPROTOOPT:
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return "Bad protocol option";
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case WSAENOTCONN:
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return "Socket is not connected";
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case WSAENOTSOCK:
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return "Socket operation on non-socket";
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case WSAEOPNOTSUPP:
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return "Operation not supported";
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case WSAEPFNOSUPPORT:
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return "Protocol family not supported";
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case WSAEPROCLIM:
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return "Too many processes";
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case WSAEPROTONOSUPPORT:
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return "Protocol not supported";
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case WSAEPROTOTYPE:
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return "Protocol wrong type for socket";
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case WSAESHUTDOWN:
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return "Cannot send after socket shutdown";
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case WSAESOCKTNOSUPPORT:
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return "Socket type not supported";
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case WSAETIMEDOUT:
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return "Connection timed out";
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case WSAEWOULDBLOCK:
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return "Resource temporarily unavailable";
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case WSAHOST_NOT_FOUND:
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return "Host not found";
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#if 0
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case WSA_INVALID_HANDLE:
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return "Specified event object handle is invalid";
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case WSA_INVALID_PARAMETER:
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return "One or more parameters are invalid";
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case WSAINVALIDPROCTABLE:
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return "Invalid procedure table from service provider";
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case WSAINVALIDPROVIDER:
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return "Invalid service provider version number";
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case WSA_IO_PENDING:
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return "Overlapped operations will complete later";
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case WSA_IO_INCOMPLETE:
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return "Overlapped I/O event object not in signaled state";
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case WSA_NOT_ENOUGH_MEMORY:
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return "Insufficient memory available";
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#endif
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case WSANOTINITIALISED:
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return "Successful WSAStartup not yet performer";
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case WSANO_DATA:
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return "Valid name, no data record of requested type";
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case WSANO_RECOVERY:
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return "This is a non-recoverable error";
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#if 0
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case WSAPROVIDERFAILEDINIT:
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return "Unable to initialize a service provider";
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case WSASYSCALLFAILURE:
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return "System call failure";
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#endif
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case WSASYSNOTREADY:
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return "Network subsystem is unavailable";
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case WSATRY_AGAIN:
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return "Non-authoritative host not found";
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case WSAVERNOTSUPPORTED:
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return "WINSOCK.DLL version out of range";
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case WSAEDISCON:
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return "Graceful shutdown in progress";
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#if 0
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case WSA_OPERATION_ABORTED:
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return "Overlapped operation aborted";
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#endif
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}
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return "Unknown WinSock error";
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}
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#endif /* _WIN32 */
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