Convert HTPasswd code from Go to C

authservice/mqhtpass/src/log.h

@@ -0,0 +1,50 @@
+/*
+© Copyright IBM Corporation 2020
+
+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.
+*/
+
+#ifndef _LOG_H
+#define _LOG_H
+
+int log_init(char *);
+
+/**
+ * Initialize the log wih an existing file handle
+ */
+void log_init_file(FILE *);
+
+/**
+ * Write a message to the log file, based on a printf format string.
+ */
+void log_printf(const char*, int, const char*, const char*, ...);
+
+void log_close();
+
+/**
+ * Variadic macro to write an informational message to the log file, based on a printf format string.
+ */
+#define log_infof(format,...) log_printf(__FILE__, __LINE__, "INFO", format, ##__VA_ARGS__)
+
+/**
+ * Variadic macro to write an error message to the log file, based on a printf format string.
+ */
+#define log_errorf(format,...) log_printf(__FILE__, __LINE__, "ERROR", format, ##__VA_ARGS__)
+
+/**
+ * Variadic macro to write a debug message to the log file, based on a printf format string.
+ */
+#define log_debugf(format,...) log_printf(__FILE__, __LINE__, "DEBUG", format, ##__VA_ARGS__)
+
+
+#endif