/**************************************************************************** * drivers/syslog/vsyslog.c * * 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. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include "syslog.h" /**************************************************************************** * Private Data ****************************************************************************/ #if defined(CONFIG_SYSLOG_COLOR_OUTPUT) static FAR const char * const g_priority_color[] = { "\e[31;1;5m", /* LOG_EMERG, Red, Bold, Blinking */ "\e[31;1m", /* LOG_ALERT, Red, Bold */ "\e[31;1m", /* LOG_CRIT, Red, Bold */ "\e[31m", /* LOG_ERR, Red */ "\e[33m", /* LOG_WARNING, Yellow */ "\e[1m", /* LOG_NOTICE, Bold */ "", /* LOG_INFO, Normal */ "\e[2m", /* LOG_DEBUG, Dim */ }; #endif #if defined(CONFIG_SYSLOG_PRIORITY) static FAR const char * const g_priority_str[] = { "EMERG", "ALERT", "CRIT", "ERROR", "WARN", "NOTICE", "INFO", "DEBUG" }; #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nx_vsyslog * * Description: * nx_vsyslog() handles the system logging system calls. It is functionally * equivalent to vsyslog() except that (1) the per-process priority * filtering has already been performed and the va_list parameter is * passed by reference. That is because the va_list is a structure in * some compilers and passing of structures in the NuttX sycalls does * not work. * ****************************************************************************/ int nx_vsyslog(int priority, FAR const IPTR char *fmt, FAR va_list *ap) { struct lib_syslograwstream_s stream; int ret = 0; #ifdef CONFIG_SYSLOG_PROCESS_NAME FAR struct tcb_s *tcb = nxsched_get_tcb(nxsched_gettid()); #endif #ifdef CONFIG_SYSLOG_TIMESTAMP struct timespec ts; # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED) struct tm tm; char date_buf[CONFIG_SYSLOG_TIMESTAMP_BUFFER]; # endif #endif /* Wrap the low-level output in a stream object and let lib_vsprintf * do the work. */ lib_syslograwstream_open(&stream); #ifdef CONFIG_SYSLOG_TIMESTAMP ts.tv_sec = 0; ts.tv_nsec = 0; # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED) memset(&tm, 0, sizeof(tm)); # endif /* Get the current time. Since debug output may be generated very early * in the start-up sequence, hardware timer support may not yet be * available. */ if (OSINIT_HW_READY()) { # if defined(CONFIG_SYSLOG_TIMESTAMP_REALTIME) /* Use CLOCK_REALTIME if so configured */ clock_gettime(CLOCK_REALTIME, &ts); # else /* Prefer monotonic when enabled, as it can be synchronized to * RTC with clock_resynchronize. */ clock_gettime(CLOCK_MONOTONIC, &ts); # endif /* Prepend the message with the current time, if available */ # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED) # if defined(CONFIG_SYSLOG_TIMESTAMP_LOCALTIME) localtime_r(&ts.tv_sec, &tm); # else gmtime_r(&ts.tv_sec, &tm); # endif # endif } # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED) date_buf[0] = '\0'; strftime(date_buf, CONFIG_SYSLOG_TIMESTAMP_BUFFER, CONFIG_SYSLOG_TIMESTAMP_FORMAT, &tm); # endif #endif #if defined(CONFIG_SYSLOG_COLOR_OUTPUT) || defined(CONFIG_SYSLOG_TIMESTAMP) || \ defined(CONFIG_SMP) || defined(CONFIG_SYSLOG_PROCESSID) || \ defined(CONFIG_SYSLOG_PRIORITY) || defined(CONFIG_SYSLOG_PREFIX) || \ defined(CONFIG_SYSLOG_PROCESS_NAME) ret = lib_sprintf_internal(&stream.common, #if defined(CONFIG_SYSLOG_COLOR_OUTPUT) /* Reset the terminal style. */ "\e[0m" #endif #ifdef CONFIG_SYSLOG_TIMESTAMP # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED) # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMAT_MICROSECOND) "[%s.%06ld] " # else "[%s] " # endif # else "[%5jd.%06ld] " # endif #endif #if defined(CONFIG_SMP) "[CPU%d] " #endif #if defined(CONFIG_SYSLOG_PROCESSID) /* Prepend the Thread ID */ "[%2d] " #endif #if defined(CONFIG_SYSLOG_COLOR_OUTPUT) /* Set the terminal style according to message priority. */ "%s" #endif #if defined(CONFIG_SYSLOG_PRIORITY) /* Prepend the message priority. */ "[%6s] " #endif #if defined(CONFIG_SYSLOG_PREFIX) /* Prepend the prefix, if available */ "[%s] " #endif #ifdef CONFIG_SYSLOG_PROCESS_NAME /* Prepend the thread name */ "%s: " #endif #ifdef CONFIG_SYSLOG_TIMESTAMP # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMATTED) # if defined(CONFIG_SYSLOG_TIMESTAMP_FORMAT_MICROSECOND) , date_buf, ts.tv_nsec / NSEC_PER_USEC # else , date_buf # endif # else , (uintmax_t)ts.tv_sec , ts.tv_nsec / NSEC_PER_USEC # endif #endif #if defined(CONFIG_SMP) , this_cpu() #endif #if defined(CONFIG_SYSLOG_PROCESSID) /* Prepend the Thread ID */ , nxsched_gettid() #endif #if defined(CONFIG_SYSLOG_COLOR_OUTPUT) /* Set the terminal style according to message priority. */ , g_priority_color[priority] #endif #if defined(CONFIG_SYSLOG_PRIORITY) /* Prepend the message priority. */ , g_priority_str[priority] #endif #if defined(CONFIG_SYSLOG_PREFIX) /* Prepend the prefix, if available */ , CONFIG_SYSLOG_PREFIX_STRING #endif #ifdef CONFIG_SYSLOG_PROCESS_NAME /* Prepend the thread name */ , get_task_name(tcb) #endif ); #endif /* CONFIG_SYSLOG_COLOR_OUTPUT || CONFIG_SYSLOG_TIMESTAMP || ... */ /* Generate the output */ ret += lib_vsprintf_internal(&stream.common, fmt, *ap); if (stream.last_ch != '\n') { lib_stream_putc(&stream.common, '\n'); ret++; } #if defined(CONFIG_SYSLOG_COLOR_OUTPUT) /* Reset the terminal style back to normal. */ ret += lib_stream_puts(&stream.common, "\e[0m", sizeof("\e[0m")); #endif /* Flush and destroy the syslog stream buffer */ lib_syslograwstream_close(&stream); return ret; }