From 0a1c6b5565e20167d1f1f33a5a8b597f420b18b0 Mon Sep 17 00:00:00 2001
From: Jordan Augé <jordan.auge+fdio@cisco.com>
Date: Fri, 26 Jul 2019 23:20:30 +0200
Subject: [HICN-252] Add per-application policy framework to hicn-light
 forwarder
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Change-Id: I0531cd7a7de179581295ae34766c81cd9cf3e172
Signed-off-by: Jordan Augé <jordan.auge+fdio@cisco.com>
Signed-off-by: Mauro Sardara <msardara@cisco.com>
Co-authored-by: Mauro Sardara <msardara@cisco.com>
---
 ctrl/facemgr/src/util/log.c | 126 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 ctrl/facemgr/src/util/log.c

(limited to 'ctrl/facemgr/src/util/log.c')

diff --git a/ctrl/facemgr/src/util/log.c b/ctrl/facemgr/src/util/log.c
new file mode 100644
index 000000000..54943cf45
--- /dev/null
+++ b/ctrl/facemgr/src/util/log.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2017-2019 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 "log.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+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)
+
+
+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)
+{
+	char *prefix;
+  FILE *f = log_conf.log_file ? log_conf.log_file : stdout;
+
+#if 0
+	if (!conf.log_system)
+		return;
+#endif
+
+	if (level > log_conf.log_level)
+		return;
+
+	switch (level) {
+		case LOG_FATAL:
+			prefix = "FATAL: ";
+			break;
+		case LOG_ERROR:
+			prefix = "ERROR: ";
+			break;
+		case LOG_WARN:
+			prefix = "WARNING: ";
+			break;
+		case LOG_INFO:
+			prefix = "";
+			break;
+		case LOG_DEBUG:
+			prefix = "DEBUG: ";
+			break;
+		case LOG_TRACE:
+			prefix = "TRACE: ";
+			break;
+		default:
+			prefix = "";
+			break;
+	}
+
+	fprintf(f, "%s %s", timestamp(), prefix);
+	vfprintf(f, fmt, ap);
+	fprintf(f, "\n");
+#ifdef DEBUG
+	fflush(f);
+#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);
+}
-- 
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