Rewrite Logger

This reverts all of Roop's changes to the C code, and then rewrites the
logger logic to be cleaner.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

WireGuard/Shared/Logging/ringlogger.h

@@ -6,25 +6,10 @@
 #ifndef RINGLOGGER_H
 #define RINGLOGGER_H
 
-enum {
-    MAX_LOG_LINE_LENGTH = 512,
-    MAX_LINES = 1024,
-    MAGIC = 0xdeadbeefU
-};
-
-struct log_line {
-    struct timeval tv;
-    char line[MAX_LOG_LINE_LENGTH];
-};
-
-struct log {
-    struct { uint32_t first, len; } header;
-    struct log_line lines[MAX_LINES];
-    uint32_t magic;
-};
-
+struct log;
 void write_msg_to_log(struct log *log, const char *msg);
-int write_logs_to_file(const char *file_name, const char *tag1, const struct log *log1, const char *tag2, const struct log *log2);
+int write_logs_to_file(const char *file_name, const struct log *log1, const struct log *log2);
 struct log *open_log(const char *file_name);
+void close_log(struct log *log);
 
 #endif