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/*
*
* honggfuzz - log messages
* -----------------------------------------
*
* Author: Robert Swiecki <swiecki@google.com>
*
* Copyright 2010-2015 by Google Inc. All Rights Reserved.
*
* Licensed 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 "common.h"
#include "log.h"
#include <ctype.h>
#include <errno.h>
#include <pthread.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <time.h>
#include <unistd.h>
#include "util.h"
static unsigned int log_minLevel = l_INFO;
static bool log_isStdioTTY;
static pthread_mutex_t log_mutex = PTHREAD_MUTEX_INITIALIZER;
/* *INDENT-OFF* */
static const struct {
const char *descr;
const char *prefix;
} logLevels[] = {
{ "[FATAL]", "\033[1;41m" },
{ "[ERROR]", "\033[1;31m" },
{ "[WARNING]", "\033[1;35m" },
{ "[INFO]", "\033[1m" },
{ "[DEBUG]", "\033[0;37m" },
};
/* *INDENT-ON* */
__attribute__ ((constructor))
void log_init(void)
{
log_isStdioTTY = (isatty(STDOUT_FILENO) == 1);
}
void log_setMinLevel(log_level_t dl)
{
log_minLevel = dl;
}
void log_msg(log_level_t dl, bool perr, const char *file, const char *func, int line,
const char *fmt, ...)
{
char msg[8192] = { "\0" };
if (dl > log_minLevel) {
if (dl == l_FATAL) {
exit(EXIT_FAILURE);
}
return;
}
char strerr[512];
if (perr) {
snprintf(strerr, sizeof(strerr), "%s", strerror(errno));
}
struct tm tm;
struct timeval tv;
gettimeofday(&tv, NULL);
localtime_r((const time_t *)&tv.tv_sec, &tm);
if (log_isStdioTTY == true) {
util_ssnprintf(msg, sizeof(msg), "%s", logLevels[dl].prefix);
}
#if defined(_HF_ARCH_LINUX)
#include <unistd.h>
#include <sys/syscall.h>
pid_t pid = (pid_t) syscall(__NR_gettid);
#else /* defined(_HF_ARCH_LINUX) */
pid_t pid = getpid();
#endif /* defined(_HF_ARCH_LINUX) */
if (log_minLevel != l_INFO || !log_isStdioTTY) {
util_ssnprintf(msg, sizeof(msg), "%s [%d] %d/%02d/%02d %02d:%02d:%02d (%s:%s %d) ",
logLevels[dl].descr, pid, tm.tm_year + 1900,
tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, file, func,
line);
} else {
util_ssnprintf(msg, sizeof(msg), "%s ", logLevels[dl].descr);
}
va_list args;
va_start(args, fmt);
util_vssnprintf(msg, sizeof(msg), fmt, args);
va_end(args);
if (perr) {
util_ssnprintf(msg, sizeof(msg), ": %s", strerr);
}
if (log_isStdioTTY == true) {
util_ssnprintf(msg, sizeof(msg), "\033[0m");
}
util_ssnprintf(msg, sizeof(msg), "\n");
while (pthread_mutex_lock(&log_mutex)) ;
if (write(STDOUT_FILENO, msg, strlen(msg)) == -1) {
}
while (pthread_mutex_unlock(&log_mutex)) ;
if (dl == l_FATAL) {
exit(EXIT_FAILURE);
}
}
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