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/*
* Copyright (c) 2021 Cisco and/or its affiliates.
* 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 <hicn/util/log.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <strings.h>
#ifdef __ANDROID__
#include <android/log.h>
#endif
log_conf_t log_conf = DEFAULT_LOG_CONF;
#define FMT_DATETIME "%02d-%02d-%04d %02d:%02d:%02d"
#define FMT_DATETIME_LEN 20
#define snprintf_nowarn(...) (snprintf (__VA_ARGS__) < 0 ? abort () : (void) 0)
#define COLOR_RED "\033[31m"
#define COLOR_YELLOW "\033[33m"
#define COLOR_RESET "\033[0m"
static char ts[FMT_DATETIME_LEN];
static char *
timestamp (void)
{
time_t tv;
struct tm *tm;
time (&tv);
tm = localtime (&tv);
snprintf_nowarn (ts, FMT_DATETIME_LEN, FMT_DATETIME, tm->tm_mday,
tm->tm_mon + 1, tm->tm_year + 1900, tm->tm_hour, tm->tm_min,
tm->tm_sec);
return ts;
}
void
_log_va (int level, const char *fmt, va_list ap)
{
#if 0
if (!conf.log_system)
return;
#endif
char *prefix;
#ifdef __ANDROID__
int prio = -1;
if (level > log_conf.log_level)
return;
switch (level)
{
case LOG_FATAL:
prio = ANDROID_LOG_FATAL;
prefix = "FATAL: ";
break;
case LOG_ERROR:
prio = ANDROID_LOG_ERROR;
prefix = "ERROR: ";
break;
case LOG_WARN:
prio = ANDROID_LOG_WARN;
prefix = "WARNING: ";
break;
case LOG_INFO:
prio = ANDROID_LOG_INFO;
prefix = "";
break;
case LOG_DEBUG:
prio = ANDROID_LOG_DEBUG;
prefix = "DEBUG: ";
break;
case LOG_TRACE:
prio = ANDROID_LOG_DEBUG;
prefix = "TRACE: ";
break;
default:
prio = ANDROID_LOG_INFO;
prefix = "";
break;
}
if (log_conf.log_file)
{
FILE *f = log_conf.log_file;
fprintf (f, "%s %s", timestamp (), prefix);
vfprintf (f, fmt, ap);
fprintf (f, "\n");
}
else
{
__android_log_vprint (prio, "HICN FACEMGR", fmt, ap);
}
#else
if (level > log_conf.log_level)
return;
char *color = COLOR_RESET;
switch (level)
{
case LOG_FATAL:
prefix = "FATAL: ";
break;
case LOG_ERROR:
prefix = "ERROR: ";
color = COLOR_RED;
break;
case LOG_WARN:
prefix = "WARNING: ";
color = COLOR_YELLOW;
break;
case LOG_INFO:
prefix = "";
break;
case LOG_DEBUG:
prefix = "DEBUG: ";
break;
case LOG_TRACE:
prefix = "TRACE: ";
break;
default:
prefix = "";
break;
}
FILE *f = log_conf.log_file ? log_conf.log_file : stdout;
fprintf (f, "%s%s %s", color, timestamp (), prefix);
vfprintf (f, fmt, ap);
fprintf (f, "%s\n", COLOR_RESET);
#ifdef DEBUG
fflush (f);
#endif
#endif
}
void
_log (int level, const char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
_log_va (level, fmt, ap);
va_end (ap);
}
#ifdef HAVE_BACKTRACE
#include <execinfo.h>
void
print_trace (void)
{
void *array[32];
size_t size;
size = backtrace (array, 32);
fflush (conf.log_file);
backtrace_symbols_fd (array, size, fileno (conf.log_file));
}
#endif
void
fatal (char *fmt, ...)
{
va_list ap;
va_start (ap, fmt);
_log_va (LOG_FATAL, fmt, ap);
va_end (ap);
#ifdef HAVE_BACKTRACE
print_trace ();
#endif
exit (200);
}
const char *loglevel_str[] = { "fatal", "error", "warn",
"info", "debug", "trace" };
int
loglevel_from_str (const char *loglevel)
{
for (int i = 0; i <= LOG_TRACE; i++)
{
if (strcasecmp (loglevel, loglevel_str[i]) == 0)
return i;
}
return -1;
}
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