Canonicalized the configuration directory.

HISTORY

@@ -155,3 +155,4 @@ VDR Plugin 'iptv' Revision History
 - Fixed EXT protocol execution (Thanks to Peter Holik).
 - Disable detaching of receivers if retuned to an existing
   channel (Thanks to Zdeněk Kopřivík).
+- Canonicalized the configuration directory.

config.c

@@ -43,5 +43,5 @@ void cIptvConfig::SetDisabledFilters(unsigned int Index, int Number)
 void cIptvConfig::SetConfigDirectory(const char *directoryP)
 {
   debug("cIptvConfig::SetConfigDirectory(%s)", directoryP);
-  strn0cpy(configDirectory, directoryP, sizeof(configDirectory));
+  ERROR_IF(!realpath(directoryP, configDirectory), "Cannot canonicalize configuration directory");
 }

config.h

@@ -20,7 +20,7 @@ private:
   unsigned int useBytes;
   unsigned int sectionFiltering;
   int disabledFilters[SECTION_FILTER_TABLE_SIZE];
-  char configDirectory[255];
+  char configDirectory[PATH_MAX];
 
 public:
   cIptvConfig();