gohook/hook/logger_c.h

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2024-06-16 04:44:20 +08:00
/* Copyright (C) 2006-2017 Alexander Barker.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include "iohook.h"
#include "logger.h"
static bool default_logger(unsigned int level, const char *format, ...) {
bool status = false;
#ifndef USE_QUIET
va_list args;
switch (level) {
#ifdef USE_DEBUG
case LOG_LEVEL_DEBUG:
#endif
case LOG_LEVEL_INFO:
va_start(args, format);
status = vfprintf(stdout, format, args) >= 0;
va_end(args);
break;
case LOG_LEVEL_WARN:
case LOG_LEVEL_ERROR:
va_start(args, format);
status = vfprintf(stderr, format, args) >= 0;
va_end(args);
break;
}
#endif
return status;
}
// Current logger function pointer, this should never be null.
// FIXME This should be static and wrapped with a public facing function.
logger_t logger = &default_logger;
IOHOOK_API void hook_set_logger(logger_t logger_proc) {
if (logger_proc == NULL) {
logger = &default_logger;
}
else {
logger = logger_proc;
}
}