controller-legacy/src/logger.c
2020-11-22 01:45:45 +01:00

96 lines
2.6 KiB
C

#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <config.h>
#include <logger.h>
const char *COLOR_DEBUG = COLOR_GREEN;
const char *COLOR_INFO = COLOR_CYAN;
const char *COLOR_NOTICE = COLOR_CYAN;
const char *COLOR_WARNING = COLOR_YELLOW;
const char *COLOR_ERR = COLOR_RED;
const char *COLOR_CRIT = COLOR_MAGENTA;
const char *COLOR_EMERG = COLOR_MAGENTA;
void
logger_log(int level, const char *filename, int line, const char *func, const char *msg, ...)
{
if(global_config->logging.level < level)
{
return;
}
va_list args;
const char *level_str;
const char *color;
switch(level)
{
case LOG_DEBUG:
color = COLOR_DEBUG;
level_str = "DEBUG";
break;
case LOG_INFO:
color = COLOR_INFO;
level_str = "INFO";
break;
case LOG_NOTICE:
color = COLOR_NOTICE;
level_str = "NOTE";
break;
case LOG_WARNING:
color = COLOR_WARNING;
level_str = "WARN";
break;
case LOG_ERR:
color = COLOR_ERR;
level_str = "ERROR";
break;
case LOG_CRIT:
color = COLOR_CRIT;
level_str = "CRIT";
break;
case LOG_EMERG:
color = COLOR_EMERG;
level_str = "EMERG";
break;
default:
return;
}
char timestamp_str[32];
time_t rawtime;
time(&rawtime);
strftime(timestamp_str, 32, "%Y-%m-%d %H:%M:%S", localtime(&rawtime));
size_t timestamp_len = strlen(timestamp_str);
size_t buffer_size = 128;
buffer_size += timestamp_len;
buffer_size += strlen(filename);
buffer_size += strlen(func);
buffer_size += strlen(msg);
char *buffer = malloc(sizeof(char) * (buffer_size));
sprintf(buffer, "%s %s[%5s] %s:%d:%s " COLOR_NONE "%s", timestamp_str, color, level_str, filename, line, func, msg);
// start arg va_list and find log_len
va_start(args, msg);
size_t log_len = vsnprintf(NULL, 0, buffer, args); // NOLINT(clang-analyzer-valist.Uninitialized): clang-tidy bug
va_end(args);
char *log_line = malloc(sizeof(char) * (log_len + 1));
// start arg va_list again and write log_line
va_start(args, msg);
vsprintf(log_line, buffer, args); // NOLINT(clang-analyzer-valist.Uninitialized): clang-tidy bug
va_end(args);
syslog(level, "%s", log_line + timestamp_len + 1);
fprintf(global_config->logging.file, "%s", log_line);
fflush(global_config->logging.file);
free(buffer);
free(log_line);
}