X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=lib%2Futils.c;h=3b1abc374bb8ef7bb4fe9ed8fc75019e99dd7037;hp=f42ee3ac204c9bbead6a52ca0672b52bce539917;hb=6f9f6779e6bd1dd7bb795b42dad550863a386ca8;hpb=1243156a5e03a666b36bc4400f1402243a85c9a7

diff --git a/lib/utils.c b/lib/utils.c
index f42ee3ac..3b1abc37 100644
--- a/lib/utils.c
+++ b/lib/utils.c
@@ -1,6 +1,7 @@
 /*
     utils.c -- gathering of some stupid small functions
-    Copyright (C) 1999 Ivo Timmermans <zarq@iname.com>
+    Copyright (C) 1999-2001 Ivo Timmermans <zarq@iname.com>
+                  2000,2001 Guus Sliepen <guus@sliepen.eu.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -17,10 +18,69 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include <sys/types.h>
+#include <ctype.h>
+#include <string.h>
+
 #include "config.h"
 
 #include <utils.h>
+#include <syslog.h>
+#include <xalloc.h>
+
+#ifdef ENABLE_TRACING
+volatile int (cp_line[]) = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+volatile char (*cp_file[]) = {"?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?"};
+volatile int cp_index = 0;
+#endif
+
+char *hexadecimals = "0123456789ABCDEF";
+
+int charhex2bin(char c)
+{
+	if(isdigit(c))
+		return c - '0';
+	else
+		return toupper(c) - 'A' + 10;
+}
+
+
+void hex2bin(char *src, char *dst, int length)
+{
+	int i;
+	for(i = 0; i < length; i++)
+		dst[i] = charhex2bin(src[i * 2]) * 16 + charhex2bin(src[i * 2 + 1]);
+}
 
-volatile int cp_line;
-volatile char *cp_file;
+void bin2hex(char *src, char *dst, int length)
+{
+	int i;
+	for(i = length - 1; i >= 0; i--) {
+		dst[i * 2 + 1] = hexadecimals[(unsigned char) src[i] & 15];
+		dst[i * 2] = hexadecimals[(unsigned char) src[i] >> 4];
+	}
+}
 
+#ifdef ENABLE_TRACING
+void cp_trace()
+{
+	syslog(LOG_DEBUG, "Checkpoint trace: %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d...",
+		   cp_file[(cp_index + 15) % 16], cp_line[(cp_index + 15) % 16],
+		   cp_file[(cp_index + 14) % 16], cp_line[(cp_index + 14) % 16],
+		   cp_file[(cp_index + 13) % 16], cp_line[(cp_index + 13) % 16],
+		   cp_file[(cp_index + 12) % 16], cp_line[(cp_index + 12) % 16],
+		   cp_file[(cp_index + 11) % 16], cp_line[(cp_index + 11) % 16],
+		   cp_file[(cp_index + 10) % 16], cp_line[(cp_index + 10) % 16],
+		   cp_file[(cp_index + 9) % 16], cp_line[(cp_index + 9) % 16],
+		   cp_file[(cp_index + 8) % 16], cp_line[(cp_index + 8) % 16],
+		   cp_file[(cp_index + 7) % 16], cp_line[(cp_index + 7) % 16],
+		   cp_file[(cp_index + 6) % 16], cp_line[(cp_index + 6) % 16],
+		   cp_file[(cp_index + 5) % 16], cp_line[(cp_index + 5) % 16],
+		   cp_file[(cp_index + 4) % 16], cp_line[(cp_index + 4) % 16],
+		   cp_file[(cp_index + 3) % 16], cp_line[(cp_index + 3) % 16],
+		   cp_file[(cp_index + 2) % 16], cp_line[(cp_index + 2) % 16],
+		   cp_file[(cp_index + 1) % 16], cp_line[(cp_index + 1) % 16],
+		   cp_file[cp_index], cp_line[cp_index]
+		);
+}
+#endif