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