mirror of
https://github.com/freebsd/freebsd-src
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245 lines
5.3 KiB
C
245 lines
5.3 KiB
C
/* $OpenBSD: err.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */
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/*
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* log.c
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*
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* Based on err.c, which was adapted from OpenBSD libc *err* *warn* code.
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*
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* Copyright (c) 2005-2012 Niels Provos and Nick Mathewson
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*
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* Copyright (c) 2000 Dug Song <dugsong@monkey.org>
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*
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* Copyright (c) 1993
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* The Regents of the University of California. 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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* 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 University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT 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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#include "event2/event-config.h"
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#include "evconfig-private.h"
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#ifdef _WIN32
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#include <winsock2.h>
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#undef WIN32_LEAN_AND_MEAN
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#endif
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#include <sys/types.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <string.h>
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#include <errno.h>
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#include "event2/event.h"
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#include "event2/util.h"
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#include "log-internal.h"
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static void event_log(int severity, const char *msg);
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static void event_exit(int errcode) EV_NORETURN;
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static event_fatal_cb fatal_fn = NULL;
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#ifdef EVENT_DEBUG_LOGGING_ENABLED
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#ifdef USE_DEBUG
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#define DEFAULT_MASK EVENT_DBG_ALL
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#else
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#define DEFAULT_MASK 0
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#endif
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EVENT2_EXPORT_SYMBOL ev_uint32_t event_debug_logging_mask_ = DEFAULT_MASK;
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#endif /* EVENT_DEBUG_LOGGING_ENABLED */
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void
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event_enable_debug_logging(ev_uint32_t which)
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{
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#ifdef EVENT_DEBUG_LOGGING_ENABLED
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event_debug_logging_mask_ = which;
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#endif
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}
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void
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event_set_fatal_callback(event_fatal_cb cb)
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{
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fatal_fn = cb;
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}
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static void
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event_exit(int errcode)
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{
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if (fatal_fn) {
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fatal_fn(errcode);
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exit(errcode); /* should never be reached */
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} else if (errcode == EVENT_ERR_ABORT_)
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abort();
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else
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exit(errcode);
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}
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void
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event_err(int eval, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_ERR, strerror(errno), fmt, ap);
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va_end(ap);
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event_exit(eval);
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}
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void
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event_warn(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_WARN, strerror(errno), fmt, ap);
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va_end(ap);
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}
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void
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event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...)
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{
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va_list ap;
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int err = evutil_socket_geterror(sock);
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_ERR, evutil_socket_error_to_string(err), fmt, ap);
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va_end(ap);
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event_exit(eval);
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}
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void
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event_sock_warn(evutil_socket_t sock, const char *fmt, ...)
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{
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va_list ap;
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int err = evutil_socket_geterror(sock);
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_WARN, evutil_socket_error_to_string(err), fmt, ap);
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va_end(ap);
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}
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void
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event_errx(int eval, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_ERR, NULL, fmt, ap);
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va_end(ap);
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event_exit(eval);
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}
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void
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event_warnx(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_WARN, NULL, fmt, ap);
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va_end(ap);
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}
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void
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event_msgx(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_MSG, NULL, fmt, ap);
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va_end(ap);
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}
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void
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event_debugx_(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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event_logv_(EVENT_LOG_DEBUG, NULL, fmt, ap);
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va_end(ap);
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}
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void
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event_logv_(int severity, const char *errstr, const char *fmt, va_list ap)
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{
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char buf[1024];
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size_t len;
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if (severity == EVENT_LOG_DEBUG && !event_debug_get_logging_mask_())
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return;
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if (fmt != NULL)
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evutil_vsnprintf(buf, sizeof(buf), fmt, ap);
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else
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buf[0] = '\0';
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if (errstr) {
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len = strlen(buf);
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if (len < sizeof(buf) - 3) {
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evutil_snprintf(buf + len, sizeof(buf) - len, ": %s", errstr);
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}
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}
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event_log(severity, buf);
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}
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static event_log_cb log_fn = NULL;
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void
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event_set_log_callback(event_log_cb cb)
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{
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log_fn = cb;
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}
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static void
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event_log(int severity, const char *msg)
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{
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if (log_fn)
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log_fn(severity, msg);
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else {
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const char *severity_str;
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switch (severity) {
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case EVENT_LOG_DEBUG:
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severity_str = "debug";
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break;
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case EVENT_LOG_MSG:
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severity_str = "msg";
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break;
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case EVENT_LOG_WARN:
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severity_str = "warn";
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break;
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case EVENT_LOG_ERR:
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severity_str = "err";
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break;
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default:
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severity_str = "???";
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break;
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}
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(void)fprintf(stderr, "[%s] %s\n", severity_str, msg);
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}
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}
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