X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=lib%2Futils.c;h=fc7abe4c30bd81ac0670e0587491613f9b7e4460;hp=f42ee3ac204c9bbead6a52ca0672b52bce539917;hb=30df5e95dbe585c6076d743d3771a42ad7c78590;hpb=d3ea434b3684093d6d160b8077c1f51a50ac7f61

diff --git a/lib/utils.c b/lib/utils.c
index f42ee3ac..fc7abe4c 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) 1999,2000 Ivo Timmermans <zarq@iname.com>
+                       2000 Guus Sliepen <guus@sliepen.warande.net>
 
     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 +18,57 @@
     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>
+
+volatile int (cp_line[]) = {0, 0, 0, 0, 0, 0, 0, 0};
+volatile char (*cp_file[]) = {"?", "?", "?", "?", "?", "?", "?", "?"};
+volatile int cp_index = 0;
+
+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];
+    }
+}
 
+char *cp_trace()
+{
+  syslog(LOG_DEBUG, "Checkpoint trace: %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d <- %s:%d ...",
+           cp_file[(cp_index+7)%8], cp_line[(cp_index+7)%8],
+           cp_file[(cp_index+6)%8], cp_line[(cp_index+6)%8],
+           cp_file[(cp_index+5)%8], cp_line[(cp_index+5)%8],
+           cp_file[(cp_index+4)%8], cp_line[(cp_index+4)%8],
+           cp_file[(cp_index+3)%8], cp_line[(cp_index+3)%8],
+           cp_file[(cp_index+2)%8], cp_line[(cp_index+2)%8],
+           cp_file[(cp_index+1)%8], cp_line[(cp_index+1)%8],
+           cp_file[cp_index], cp_line[cp_index]
+        );
+}