Fixed a signed character used as index in cBase64Encoder::NextLine()

CONTRIBUTORS

@@ -2104,6 +2104,7 @@ Tobias Grimm <tobias.grimm@e-tobi.net>
  for suggesting that the 'plugins' target in the Makefile should return an error exit
  code if one of the plugins failed to compile
  for making the non-breaking space symbol be rendered as a blank
+ for fixing a signed character used as index in cBase64Encoder::NextLine()
 
 Helge Lenz <h.lenz@gmx.de>
  for reporting a bug in setting the 'Delta' parameter when calling the shutdown

HISTORY

@@ -5703,3 +5703,5 @@ Video Disk Recorder Revision History
   SI data on the Czech/Slovak channels, which actually do follow the standard).
   Users who want to set the default character set to something different can do wo
   through "export VDR_CHARSET_OVERRIDE=ISO-8859-9".
+- Fixed a signed character used as index in cBase64Encoder::NextLine() (thanks
+  to Tobias Grimm).

tools.c

@@ -4,7 +4,7 @@
  * See the main source file 'vdr.c' for copyright information and
  * how to reach the author.
  *
- * $Id: tools.c 1.144 2008/02/29 13:16:39 kls Exp $
+ * $Id: tools.c 1.145 2008/03/05 17:23:47 kls Exp $
  */
 
 #include "tools.h"
@@ -1102,7 +1102,7 @@ const char *cBase64Encoder::NextLine(void)
   int r = 0;
   while (i < length && r < maxResult - 3) {
         result[r++] = b64[(data[i] >> 2) & 0x3F];
-        char c = (data[i] << 4) & 0x3F;
+        uchar c = (data[i] << 4) & 0x3F;
         if (++i < length)
            c |= (data[i] >> 4) & 0x0F;
         result[r++] = b64[c];