1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/ipc/chromium/src/third_party/libevent/log.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,224 @@
1.4 +/* $OpenBSD: err.c,v 1.2 2002/06/25 15:50:15 mickey Exp $ */
1.5 +
1.6 +/*
1.7 + * log.c
1.8 + *
1.9 + * Based on err.c, which was adapted from OpenBSD libc *err* *warn* code.
1.10 + *
1.11 + * Copyright (c) 2005-2012 Niels Provos and Nick Mathewson
1.12 + *
1.13 + * Copyright (c) 2000 Dug Song <dugsong@monkey.org>
1.14 + *
1.15 + * Copyright (c) 1993
1.16 + * The Regents of the University of California. All rights reserved.
1.17 + *
1.18 + * Redistribution and use in source and binary forms, with or without
1.19 + * modification, are permitted provided that the following conditions
1.20 + * are met:
1.21 + * 1. Redistributions of source code must retain the above copyright
1.22 + * notice, this list of conditions and the following disclaimer.
1.23 + * 2. Redistributions in binary form must reproduce the above copyright
1.24 + * notice, this list of conditions and the following disclaimer in the
1.25 + * documentation and/or other materials provided with the distribution.
1.26 + * 3. Neither the name of the University nor the names of its contributors
1.27 + * may be used to endorse or promote products derived from this software
1.28 + * without specific prior written permission.
1.29 + *
1.30 + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.31 + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.32 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.33 + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.34 + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.35 + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.36 + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.37 + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.38 + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.39 + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.40 + * SUCH DAMAGE.
1.41 + */
1.42 +
1.43 +#include "event2/event-config.h"
1.44 +
1.45 +#ifdef WIN32
1.46 +#include <winsock2.h>
1.47 +#define WIN32_LEAN_AND_MEAN
1.48 +#include <windows.h>
1.49 +#undef WIN32_LEAN_AND_MEAN
1.50 +#endif
1.51 +#include <sys/types.h>
1.52 +#include <stdio.h>
1.53 +#include <stdlib.h>
1.54 +#include <stdarg.h>
1.55 +#include <string.h>
1.56 +#include <errno.h>
1.57 +#include "event2/event.h"
1.58 +#include "event2/util.h"
1.59 +
1.60 +#include "log-internal.h"
1.61 +
1.62 +static void _warn_helper(int severity, const char *errstr, const char *fmt,
1.63 + va_list ap);
1.64 +static void event_log(int severity, const char *msg);
1.65 +static void event_exit(int errcode) EV_NORETURN;
1.66 +
1.67 +static event_fatal_cb fatal_fn = NULL;
1.68 +
1.69 +void
1.70 +event_set_fatal_callback(event_fatal_cb cb)
1.71 +{
1.72 + fatal_fn = cb;
1.73 +}
1.74 +
1.75 +static void
1.76 +event_exit(int errcode)
1.77 +{
1.78 + if (fatal_fn) {
1.79 + fatal_fn(errcode);
1.80 + exit(errcode); /* should never be reached */
1.81 + } else if (errcode == _EVENT_ERR_ABORT)
1.82 + abort();
1.83 + else
1.84 + exit(errcode);
1.85 +}
1.86 +
1.87 +void
1.88 +event_err(int eval, const char *fmt, ...)
1.89 +{
1.90 + va_list ap;
1.91 +
1.92 + va_start(ap, fmt);
1.93 + _warn_helper(_EVENT_LOG_ERR, strerror(errno), fmt, ap);
1.94 + va_end(ap);
1.95 + event_exit(eval);
1.96 +}
1.97 +
1.98 +void
1.99 +event_warn(const char *fmt, ...)
1.100 +{
1.101 + va_list ap;
1.102 +
1.103 + va_start(ap, fmt);
1.104 + _warn_helper(_EVENT_LOG_WARN, strerror(errno), fmt, ap);
1.105 + va_end(ap);
1.106 +}
1.107 +
1.108 +void
1.109 +event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...)
1.110 +{
1.111 + va_list ap;
1.112 + int err = evutil_socket_geterror(sock);
1.113 +
1.114 + va_start(ap, fmt);
1.115 + _warn_helper(_EVENT_LOG_ERR, evutil_socket_error_to_string(err), fmt, ap);
1.116 + va_end(ap);
1.117 + event_exit(eval);
1.118 +}
1.119 +
1.120 +void
1.121 +event_sock_warn(evutil_socket_t sock, const char *fmt, ...)
1.122 +{
1.123 + va_list ap;
1.124 + int err = evutil_socket_geterror(sock);
1.125 +
1.126 + va_start(ap, fmt);
1.127 + _warn_helper(_EVENT_LOG_WARN, evutil_socket_error_to_string(err), fmt, ap);
1.128 + va_end(ap);
1.129 +}
1.130 +
1.131 +void
1.132 +event_errx(int eval, const char *fmt, ...)
1.133 +{
1.134 + va_list ap;
1.135 +
1.136 + va_start(ap, fmt);
1.137 + _warn_helper(_EVENT_LOG_ERR, NULL, fmt, ap);
1.138 + va_end(ap);
1.139 + event_exit(eval);
1.140 +}
1.141 +
1.142 +void
1.143 +event_warnx(const char *fmt, ...)
1.144 +{
1.145 + va_list ap;
1.146 +
1.147 + va_start(ap, fmt);
1.148 + _warn_helper(_EVENT_LOG_WARN, NULL, fmt, ap);
1.149 + va_end(ap);
1.150 +}
1.151 +
1.152 +void
1.153 +event_msgx(const char *fmt, ...)
1.154 +{
1.155 + va_list ap;
1.156 +
1.157 + va_start(ap, fmt);
1.158 + _warn_helper(_EVENT_LOG_MSG, NULL, fmt, ap);
1.159 + va_end(ap);
1.160 +}
1.161 +
1.162 +void
1.163 +_event_debugx(const char *fmt, ...)
1.164 +{
1.165 + va_list ap;
1.166 +
1.167 + va_start(ap, fmt);
1.168 + _warn_helper(_EVENT_LOG_DEBUG, NULL, fmt, ap);
1.169 + va_end(ap);
1.170 +}
1.171 +
1.172 +static void
1.173 +_warn_helper(int severity, const char *errstr, const char *fmt, va_list ap)
1.174 +{
1.175 + char buf[1024];
1.176 + size_t len;
1.177 +
1.178 + if (fmt != NULL)
1.179 + evutil_vsnprintf(buf, sizeof(buf), fmt, ap);
1.180 + else
1.181 + buf[0] = '\0';
1.182 +
1.183 + if (errstr) {
1.184 + len = strlen(buf);
1.185 + if (len < sizeof(buf) - 3) {
1.186 + evutil_snprintf(buf + len, sizeof(buf) - len, ": %s", errstr);
1.187 + }
1.188 + }
1.189 +
1.190 + event_log(severity, buf);
1.191 +}
1.192 +
1.193 +static event_log_cb log_fn = NULL;
1.194 +
1.195 +void
1.196 +event_set_log_callback(event_log_cb cb)
1.197 +{
1.198 + log_fn = cb;
1.199 +}
1.200 +
1.201 +static void
1.202 +event_log(int severity, const char *msg)
1.203 +{
1.204 + if (log_fn)
1.205 + log_fn(severity, msg);
1.206 + else {
1.207 + const char *severity_str;
1.208 + switch (severity) {
1.209 + case _EVENT_LOG_DEBUG:
1.210 + severity_str = "debug";
1.211 + break;
1.212 + case _EVENT_LOG_MSG:
1.213 + severity_str = "msg";
1.214 + break;
1.215 + case _EVENT_LOG_WARN:
1.216 + severity_str = "warn";
1.217 + break;
1.218 + case _EVENT_LOG_ERR:
1.219 + severity_str = "err";
1.220 + break;
1.221 + default:
1.222 + severity_str = "???";
1.223 + break;
1.224 + }
1.225 + (void)fprintf(stderr, "[%s] %s\n", severity_str, msg);
1.226 + }
1.227 +}
