ref: 990adc01b453c29557c7d6059cf2cefb397e014f
parent: 01533ced72f6d115b24c29e9831c4f25d05afdbd
author: Sam Hocevar <[email protected]>
date: Thu Jun 12 19:22:34 EDT 2003
* ./src/libdvdcss.c: if DVDCSS_CACHE is not set, we force a default value.
- under Win32: C:\Documents and Settings\$USER\Application Data\dvdcss\
- under Unix and everything else: ${HOME}/.dvdcss/
- the special value DVDCSS_CACHE=off disables caching.
* ./src/libdvdcss.c: updated doxygen documentation accordingly.
--- a/src/libdvdcss.c
+++ b/src/libdvdcss.c
@@ -5,7 +5,7 @@
* H�kan Hjort <[email protected]>
*
* Copyright (C) 1998-2002 VideoLAN
- * $Id: libdvdcss.c,v 1.31 2003/03/27 18:57:12 gbazin Exp $
+ * $Id: libdvdcss.c,v 1.32 2003/06/12 23:22:34 sam Exp $
*
* 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
@@ -87,7 +87,10 @@
* values. This will speed up descrambling of DVDs which are in the
* cache. The DVDCSS_CACHE directory is created if it does not exist,
* and a subdirectory is created named after the DVD's title or
- * manufacturing date.
+ * manufacturing date. If DVDCSS_CACHE is not set or is empty, \e libdvdcss
+ * 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.
*/
/*
@@ -103,6 +106,9 @@
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
+#ifdef HAVE_PWD_H
+# include <pwd.h>
+#endif
#include <fcntl.h>
#include <errno.h>
@@ -154,6 +160,7 @@
*/
extern dvdcss_t dvdcss_open ( char *psz_target )
{+ char psz_buffer[PATH_MAX];
int i_ret;
char *psz_method = getenv( "DVDCSS_METHOD" );
@@ -232,11 +239,87 @@
}
/*
+ * If DVDCSS_CACHE was not set, try to guess a default value
+ */
+ if( psz_cache == NULL || psz_cache[0] == '\0' )
+ {+#ifdef HAVE_DIRECT_H
+ typedef HRESULT( WINAPI *SHGETFOLDERPATH )
+ ( HWND, int, HANDLE, DWORD, LPTSTR );
+
+# define CSIDL_FLAG_CREATE 0x8000
+# define CSIDL_APPDATA 0x1A
+# define SHGFP_TYPE_CURRENT 0
+
+ char psz_home[MAX_PATH];
+ HINSTANCE p_dll;
+ SHGETFOLDERPATH p_getpath;
+
+ *psz_home = '\0';
+
+ /* Load the shfolder dll to retrieve SHGetFolderPath */
+ p_dll = LoadLibrary( "shfolder.dll" );
+ if( p_dll )
+ {+ p_getpath = (void*)GetProcAddress( p_dll, "SHGetFolderPathA" );
+ if( p_getpath )
+ {+ /* Get the "Application Data" folder for the current user */
+ if( p_getpath( NULL, CSIDL_APPDATA | CSIDL_FLAG_CREATE,
+ NULL, SHGFP_TYPE_CURRENT, psz_home ) == S_OK )
+ {+ FreeLibrary( p_dll );
+ }
+ else
+ {+ *psz_home = '\0';
+ }
+ }
+ FreeLibrary( p_dll );
+ }
+
+ /* Cache our keys in
+ * C:\Documents and Settings\$USER\Application Data\dvdcss\ */
+ if( *psz_home )
+ {+ snprintf( psz_buffer, PATH_MAX, "%s/dvdcss", psz_home );
+ psz_buffer[PATH_MAX-1] = '\0';
+ psz_cache = psz_buffer;
+ }
+#else
+ char *psz_home = NULL;
+# ifdef HAVE_PWD_H
+ struct passwd *p_pwd;
+
+ /* Try looking in password file for home dir. */
+ p_pwd = getpwuid(getuid());
+ if( p_pwd )
+ {+ psz_home = p_pwd->pw_dir;
+ }
+# endif
+
+ if( psz_home == NULL )
+ {+ psz_home = getenv( "HOME" );
+ }
+
+ /* Cache our keys in ${HOME}/.dvdcss/ */+ if( psz_home )
+ {+ snprintf( psz_buffer, PATH_MAX, "%s/.dvdcss", psz_home );
+ psz_buffer[PATH_MAX-1] = '\0';
+ psz_cache = psz_buffer;
+ }
+#endif
+ }
+
+ /*
* Find cache dir from the DVDCSS_CACHE environment variable
*/
if( psz_cache != NULL )
{- if( psz_cache[0] == '\0' )
+ if( psz_cache[0] == '\0' || !strcmp( psz_cache, "off" ) )
{psz_cache = NULL;
}