X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=lib%2Futils.c;h=02b7b3443e626c268bead9bff0bccd03f094b596;hp=f42ee3ac204c9bbead6a52ca0672b52bce539917;hb=81afa26e4ad53bea00da18a7666f63d33cf3f588;hpb=1243156a5e03a666b36bc4400f1402243a85c9a7

diff --git a/lib/utils.c b/lib/utils.c
index f42ee3ac..02b7b344 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) 1999-2005 Ivo Timmermans <zarq@iname.com>
+                  2000-2006 Guus Sliepen <guus@tinc-vpn.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 +18,92 @@
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
-#include "config.h"
+#include "system.h"
 
-#include <utils.h>
+#include "../src/logger.h"
+#include "utils.h"
 
-volatile int cp_line;
-volatile char *cp_file;
+#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
 
+const 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]);
+}
+
+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()
+{
+	logger(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
+
+#if defined(HAVE_MINGW) || defined(HAVE_CYGWIN)
+#ifdef HAVE_CYGWIN
+#include <w32api/windows.h>
+#endif
+
+const char *winerror(int err) {
+	static char buf[1024], *newline;
+
+	if (!FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+	        NULL, err, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, sizeof(buf), NULL)) {
+		strncpy(buf, _("(unable to format errormessage)"), sizeof(buf));
+	};
+
+	if((newline = strchr(buf, '\r')))
+		*newline = '\0';
+
+	return buf;
+}
+#endif
+
+unsigned int bitfield_to_int(void *bitfield, size_t size) {
+	unsigned int value = 0;
+	if(size > sizeof value)
+		size = sizeof value;
+	memcpy(&value, bitfield, size);
+	return value;
+}