150 lines
4.0 KiB
C
150 lines
4.0 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#include "config.h"
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#include "log.h"
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#include <guacamole/client.h>
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#include <guacamole/error.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <unistd.h>
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int guacd_log_level = GUAC_LOG_INFO;
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void vguacd_log(guac_client_log_level level, const char* format,
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va_list args) {
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const char* priority_name;
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int priority;
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char message[2048];
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/* Don't bother if the log level is too high */
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if (level > guacd_log_level)
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return;
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/* Copy log message into buffer */
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vsnprintf(message, sizeof(message), format, args);
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/* Convert log level to syslog priority */
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switch (level) {
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/* Error log level */
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case GUAC_LOG_ERROR:
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priority = LOG_ERR;
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priority_name = "ERROR";
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break;
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/* Warning log level */
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case GUAC_LOG_WARNING:
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priority = LOG_WARNING;
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priority_name = "WARNING";
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break;
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/* Informational log level */
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case GUAC_LOG_INFO:
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priority = LOG_INFO;
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priority_name = "INFO";
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break;
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/* Debug log level */
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case GUAC_LOG_DEBUG:
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priority = LOG_DEBUG;
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priority_name = "DEBUG";
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break;
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/* Trace log level */
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case GUAC_LOG_TRACE:
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priority = LOG_DEBUG;
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priority_name = "TRACE";
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break;
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/* Any unknown/undefined log level */
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default:
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priority = LOG_INFO;
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priority_name = "UNKNOWN";
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break;
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}
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/* Log to syslog */
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syslog(priority, "%s", message);
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/* Log to STDERR */
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fprintf(stderr, GUACD_LOG_NAME "[%i]: %s:\t%s\n",
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getpid(), priority_name, message);
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}
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void guacd_log(guac_client_log_level level, const char* format, ...) {
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va_list args;
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va_start(args, format);
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vguacd_log(level, format, args);
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va_end(args);
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}
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void guacd_client_log(guac_client* client, guac_client_log_level level,
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const char* format, va_list args) {
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vguacd_log(level, format, args);
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}
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void guacd_log_guac_error(guac_client_log_level level, const char* message) {
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if (guac_error != GUAC_STATUS_SUCCESS) {
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/* If error message provided, include in log */
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if (guac_error_message != NULL)
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guacd_log(level, "%s: %s",
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message,
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guac_error_message);
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/* Otherwise just log with standard status string */
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else
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guacd_log(level, "%s: %s",
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message,
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guac_status_string(guac_error));
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}
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/* Just log message if no status code */
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else
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guacd_log(level, "%s", message);
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}
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void guacd_log_handshake_failure() {
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if (guac_error == GUAC_STATUS_CLOSED)
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guacd_log(GUAC_LOG_INFO,
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"Guacamole connection closed during handshake");
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else if (guac_error == GUAC_STATUS_PROTOCOL_ERROR)
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guacd_log(GUAC_LOG_ERROR,
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"Guacamole protocol violation. Perhaps the version of "
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"guacamole-client is incompatible with this version of "
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"guacd?");
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else
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guacd_log(GUAC_LOG_WARNING,
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"Guacamole handshake failed: %s",
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guac_status_string(guac_error));
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}
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