/*
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
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
+
+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
+
+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