X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=lib%2Futils.c;h=26d3b49837eedc5fc6ff055cac58f2932ddca96d;hp=c8de214f1e0e0aa0994878b10155810f71494314;hb=d3f889c8076dff9c00ebfe1459cb36425f8da41d;hpb=e9635ae38e0e2e3eb92568a1e234f8348856dd69

diff --git a/lib/utils.c b/lib/utils.c
index c8de214f..26d3b498 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.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
@@ -19,37 +20,98 @@
 
 #include <sys/types.h>
 #include <ctype.h>
+#include <string.h>
+#include <stdarg.h>
 
 #include "config.h"
 
 #include <utils.h>
+#include <syslog.h>
+#include <xalloc.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 *charbin2hex = "0123456789ABCDEF";
+char *hexadecimals = "0123456789ABCDEF";
 
 int charhex2bin(char c)
 {
   if(isdigit(c))
     return c - '0';
   else
-    return tolower(c) - 'a' + 10;
+    return toupper(c) - 'A' + 10;
 }
 
-void hex2bin(char *src, char *dst, size_t length)
+
+void hex2bin(char *src, char *dst, int length)
 {
-  size_t i;
+  int i;
   for(i=0; i<length; i++)
-    dst[i] = charhex2bin(src[i*2])<<4 || charhex2bin(src[i*2+1]);
+    dst[i] = charhex2bin(src[i*2])*16 + charhex2bin(src[i*2+1]);
 }
 
-void bin2hex(char *src, char *dst, size_t length)
+void bin2hex(char *src, char *dst, int length)
 {
-  size_t i;
+  int i;
   for(i=length-1; i>=0; i--)
     {
-      dst[i*2+1] = charbin2hex[src[i] & 15];
-      dst[i*2] = charbin2hex[src[i]>>4];
+      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
+
+#ifndef HAVE_ASPRINTF
+int asprintf(char **buf, const char *fmt, ...)
+{
+  int status;
+  va_list ap;
+  int len;
+  
+  len = 4096;
+  *buf = xmalloc(len);
+
+  va_start(ap, fmt);
+  status = vsnprintf (*buf, len, fmt, ap);
+  va_end (ap);
+
+  if(status >= 0)
+    *buf = xrealloc(*buf, status);
+
+  if(status > len-1)
+    {
+      len = status;
+      va_start(ap, fmt);
+      status = vsnprintf (*buf, len, fmt, ap);
+      va_end (ap);
+    }
+
+  return status;
+}
+#endif