--- gvpe/src/util.C	2003/04/02 03:25:17	1.5
+++ gvpe/src/util.C	2004/01/29 18:55:10	1.12
@@ -1,5 +1,6 @@
 /*
     util.C -- process management and other utility functions
+    Copyright (C) 2003 Marc Lehmann <pcg@goof.com>
     
     Some of these are taken from tinc, see the AUTHORS file.
  
@@ -21,6 +22,7 @@
 #include "config.h"
 
 #include <cstdio>
+#include <cstdlib>
 #include <cstring>
 
 #include <errno.h>
@@ -29,12 +31,8 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <time.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
 
-
-#include <sys/mman.h>
+#include "netcompat.h"
 
 #include "gettext.h"
 #include "pidfile.h"
@@ -146,9 +144,9 @@
   if ((pid = fork ()) == 0)
     {
       char *filename;
-      asprintf (&filename, "%s/%s", confbase, cb(0));
+      asprintf (&filename, "%s/%s", confbase, cb());
       execl (filename, filename, (char *) 0);
-      exit (255);
+      exit (126);
     }
   else if (pid > 0)
     {
@@ -159,3 +157,77 @@
         }
     }
 }
+
+#if ENABLE_HTTP_PROXY
+// works like strdup
+u8 *
+base64_encode (const u8 *data, unsigned int len)
+{
+  const static char base64[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+  unsigned int t, i;
+  const u8 *end = data + len;
+  u8 *res = new u8 [4 * ((len + 2) / 3) + 1];
+  u8 *out = res;
+
+  while (data <= end - 3)
+    {
+      t = (((data[0] << 8) | data[1]) << 8) | data[2];
+      data += 3;
+      
+      *out++ = base64[(t >> 18) & 0x3f];
+      *out++ = base64[(t >> 12) & 0x3f];
+      *out++ = base64[(t >>  6) & 0x3f];
+      *out++ = base64[(t      ) & 0x3f];
+    }
+
+  for (t = 0, i = 0; data < end; i++)
+    t = (t << 8) | *data++;
+
+  switch (i)
+    {
+      case 2:
+        *out++ = base64[(t >> 10) & 0x3f];
+        *out++ = base64[(t >>  4) & 0x3f];
+        *out++ = base64[(t <<  2) & 0x3f];
+        *out++ = '=';
+        break;
+      case 1:
+        *out++ = base64[(t >>  2) & 0x3f];
+        *out++ = base64[(t <<  4) & 0x3f];
+        *out++ = '=';
+        *out++ = '=';
+        break;
+    }
+
+  *out++ = 0;
+
+  return res;
+}
+#endif
+
+void
+id2mac (unsigned int id, void *m)
+{
+  mac &p = *(mac *)m;
+
+  if (id)
+    {
+      p[0] = 0xfe;
+      p[1] = 0xfd;
+      p[2] = 0x80;
+      p[3] = 0x00;
+      p[4] = id >> 8;
+      p[5] = id;
+    }
+  else
+    {
+      p[0] = 0xff;
+      p[1] = 0xff;
+      p[2] = 0xff;
+      p[3] = 0xff;
+      p[4] = 0xff;
+      p[5] = 0xff;
+    }
+}
+