shithub: libdvdcss

Info  •  Files  •  Log  •  Branches

Add support for the DVDCSS_IGNORE_RPC environment variable in order to
bypass our new RPC-II sanity check.

--- a/src/libdvdcss.c

+++ b/src/libdvdcss.c

@@ -91,6 +91,13 @@

  *     will use the default value which is "${HOME}/.dvdcss/" under Unix and

  *     "C:\Documents and Settings\$USER\Application Data\dvdcss\" under Win32.

  *     The special value "off" disables caching.

+ *

+ * \li \b DVDCSS_IGNORE_RPC: by default, libdvdcss will refuse to access

+ *     a scrambled disc if the drive reports itself as RPC-II with no

+ *     region set, because such drives are designed to prevent access to

+ *     both the decryption key and the DVD data, rendering any decryption

+ *     method useless. Setting this environment variable to \c 1 will

+ *     bypass this check and try to access the drive anyway.

  */

 /*

@@ -169,6 +176,7 @@

 #if !defined(WIN32) && !defined(SYS_OS2)

     char *psz_raw_device = getenv( "DVDCSS_RAW_DEVICE" );

 #endif

+    char *psz_ignore_rpc = getenv( "DVDCSS_IGNORE_RPC" );

     dvdcss_t dvdcss;

@@ -194,6 +202,7 @@

     dvdcss->psz_cachefile[0] = '\0';

     dvdcss->b_debug = 0;

     dvdcss->b_errors = 0;

+    dvdcss->b_ignore_rpc = 0;

     /*

      *  Find verbosity from DVDCSS_VERBOSE environment variable

@@ -363,11 +372,13 @@

     dvdcss->b_scrambled = 1; /* Assume the worst */

     dvdcss->b_ioctls = _dvdcss_use_ioctls( dvdcss );

+    dvdcss->b_ignore_rpc = psz_ignore_rpc ? atoi( psz_ignore_rpc ) : 0;

     if( dvdcss->b_ioctls )

     {

         i_ret = _dvdcss_test( dvdcss );

-        if( i_ret == -2 )

+

+        if( i_ret == -2 && !dvdcss->b_ignore_rpc )

         {

             /* Scrambled disk, RPC-II drive, no region set: bail out */

             free( dvdcss->psz_device );

--- a/src/libdvdcss.h

+++ b/src/libdvdcss.h

@@ -45,6 +45,7 @@

     css_t        css;

     int          b_ioctls;

     int          b_scrambled;

+    int          b_ignore_rpc;

     dvd_title_t *p_titles;

     /* Key cache directory and pointer to the filename */