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fix segmentation fault with -dvdkey, fix return value of dvd_css_descramble(), try to load css.so syms with AND without _ in syms' names. PLEASE TEST IT CURRENTLY I HAVE NO DVD DRIVE NOR A SINGLE VOB FILE ... 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7460 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
lgb 2002-09-21 16:04:14 +00:00
parent a51fad2519
commit b9ce5ed76c
2 changed files with 63 additions and 29 deletions
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88
libmpdemux/dvdauth.c
View File

@ -9,6 +9,13 @@
2001 Support for libcss with the new API (by ???)
2002/Jan/04 Use dlopen to access libcss.so to avoid conflict with
libdvdread [now with only libcss with old API (LGB)
2002/Sep/21 Fix a bug which caused segmentation fault when using
-dvdkey option, since css.so was only loaded by -dvdauth.
(LGB, reported and suggested by "me andi" <wortelsapje@hotmail.com>)
Also some cosmetic fix with return value of dvd_css_descramble().
2002/Sep/21 Try to load css syms with AND without underscore at their
names, probably not only OpenBSD requires this so it's a
better solution (LGB).
TODO:
support for libcss libraries with new API */
@ -76,6 +83,9 @@ unsigned char key_title[5];
unsigned char *dvdimportkey=NULL;
int descrambling=0;
static int css_so_is_loaded=0;
static void *dlid;
static int (*dl_CSSisEncrypted)(int);
static int (*dl_CSSAuthDisc)(int,char *);
@ -84,7 +94,8 @@ static int (*dl_CSSGetASF)(int);
static int (*dl_CSSDecryptTitleKey)(char *, char *);
static void (*dl_CSSDescramble)(u_char *, u_char *);
dvd_css_descramble ( u_char *sec , u_char *key )
void dvd_css_descramble ( u_char *sec , u_char *key )
{
(*dl_CSSDescramble)(sec,key);
}
@ -189,6 +200,53 @@ static void reset_agids ( DVDHandle dvd )
}
static int dvd_load_css_so ( void )
{
if (css_so_is_loaded) {
printf("DVD: warning: attempt to load css.so twice, ignoring.\n");
return 0;
}
if (!css_so) css_so=strdup("libcss.so");
printf("DVD: opening libcss.so as %s ...\n",css_so);
dlid=dlopen(css_so,RTLD_NOW);
if (!dlid) {
printf("DVD: dlopen: %s\n",dlerror());
return 1;
} printf("DVD: dlopen OK!\n");
/* #ifdef __OpenBSD__
#define CSS_DLSYM(v,s) if (!(v=dlsym(dlid,"_" s))) {\
fprintf(stderr,"DVD: %s\n Hint: use libcss version 0.1!\n",dlerror());\
return 1; }
#else
#define CSS_DLSYM(v,s) if (!(v=dlsym(dlid,s))) {\
fprintf(stderr,"DVD: %s\n Hint: use libcss version 0.1!\n",dlerror());\
return 1; }
#endif */
#define CSS_DLSYM(v,s) \
if (!(v=dlsym(dlid,s))) {\
if (!(v=dlsym(dlid,"_" s))) {\
fprintf(stderr,"DVD: %s\n Hint: use libcss version 0.1!\n",dlerror());\
return 1;\
}\
}
CSS_DLSYM(dl_CSSisEncrypted,"CSSisEncrypted");
CSS_DLSYM(dl_CSSAuthDisc,"CSSAuthDisc");
CSS_DLSYM(dl_CSSAuthTitle,"CSSAuthTitle");
CSS_DLSYM(dl_CSSGetASF,"CSSGetASF");
CSS_DLSYM(dl_CSSDecryptTitleKey,"CSSDecryptTitleKey");
CSS_DLSYM(dl_CSSDescramble,"CSSDescramble");
#undef CSS_DLSYM
css_so_is_loaded=1;
return 0;
}
int dvd_import_key ( unsigned char *hexkey )
{
unsigned char *t=key_title;
@ -209,6 +267,7 @@ int dvd_import_key ( unsigned char *hexkey )
}
if (*hexkey) return 1;
printf("DVD: DVD key (requested): %02X%02X%02X%02X%02X\n",key_title[0],key_title[1],key_title[2],key_title[3],key_title[4]);
if (dvd_load_css_so()) return 1;
descrambling=1;
return 0;
}
@ -219,32 +278,7 @@ int dvd_auth ( char *dev , char *filename )
{
DVDHandle dvd; /* DVD device handle */
if (!css_so) css_so=strdup("libcss.so");
printf("DVD: opening libcss.so as %s ...\n",css_so);
dlid=dlopen(css_so,RTLD_NOW);
if (!dlid) {
printf("DVD: dlopen: %s\n",dlerror());
return 1;
} printf("DVD: dlopen OK!\n");
#ifdef __OpenBSD__
#define CSS_DLSYM(v,s) if (!(v=dlsym(dlid,"_" s))) {\
fprintf(stderr,"DVD: %s\n Hint: use libcss version 0.1!\n",dlerror());\
return 1; }
#else
#define CSS_DLSYM(v,s) if (!(v=dlsym(dlid,s))) {\
fprintf(stderr,"DVD: %s\n Hint: use libcss version 0.1!\n",dlerror());\
return 1; }
#endif
CSS_DLSYM(dl_CSSisEncrypted,"CSSisEncrypted");
CSS_DLSYM(dl_CSSAuthDisc,"CSSAuthDisc");
CSS_DLSYM(dl_CSSAuthTitle,"CSSAuthTitle");
CSS_DLSYM(dl_CSSGetASF,"CSSGetASF");
CSS_DLSYM(dl_CSSDecryptTitleKey,"CSSDecryptTitleKey");
CSS_DLSYM(dl_CSSDescramble,"CSSDescramble");
#undef CSS_DLSYM
if (dvd_load_css_so()) return 1;
if ((dvd=DVDOpenDevice(dev)) == DVDOpenFailed) {
fprintf(stderr,"DVD: cannot open DVD device \"%s\": %s.\n",

2
libmpdemux/dvdauth.h
View File

@ -11,7 +11,7 @@ extern char *css_so;
int dvd_auth ( char *, char * );
int dvd_import_key ( unsigned char * );
int dvd_css_descramble ( u_char *, u_char * );
void dvd_css_descramble ( u_char *, u_char * );
#endif
#endif