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-rw-r--r--libdvdread/dvd_input.c414
1 files changed, 0 insertions, 414 deletions
diff --git a/libdvdread/dvd_input.c b/libdvdread/dvd_input.c
deleted file mode 100644
index 35359821bd..0000000000
--- a/libdvdread/dvd_input.c
+++ /dev/null
@@ -1,414 +0,0 @@
-/* -*- c-basic-offset: 2; indent-tabs-mode: nil -*- */
-/*
- * Copyright (C) 2002 Samuel Hocevar <sam@zoy.org>,
- * Håkan Hjort <d95hjort@dtek.chalmers.se>
- *
- * 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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
- */
-
-#include "config.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#define __USE_GNU /* to get O_DIRECT in linux */
-#include <fcntl.h>
-#include <unistd.h>
-
-#include "dvd_reader.h"
-#include "dvd_input.h"
-
-#include "dvdread_internal.h"
-
-/* The function pointers that is the exported interface of this file. */
-dvd_input_t (*dvdinput_open) (const char *);
-int (*dvdinput_close) (dvd_input_t);
-int (*dvdinput_seek) (dvd_input_t, int);
-int (*dvdinput_title) (dvd_input_t, int);
-/**
- * pointer must be aligned to 2048 bytes
- * if reading from a raw/O_DIRECT file
- */
-int (*dvdinput_read) (dvd_input_t, void *, int, int);
-
-char * (*dvdinput_error) (dvd_input_t);
-
-#ifdef HAVE_DVDCSS_DVDCSS_H
-/* linking to libdvdcss */
-#include <dvdcss/dvdcss.h>
-#define DVDcss_open(a) dvdcss_open((char*)(a))
-#define DVDcss_close dvdcss_close
-#define DVDcss_seek dvdcss_seek
-#define DVDcss_title dvdcss_title
-#define DVDcss_read dvdcss_read
-#define DVDcss_error dvdcss_error
-#else
-/* dlopening libdvdcss */
-#include <dlfcn.h>
-typedef struct dvdcss_s *dvdcss_handle;
-static dvdcss_handle (*DVDcss_open) (const char *);
-static int (*DVDcss_close) (dvdcss_handle);
-static int (*DVDcss_seek) (dvdcss_handle, int, int);
-static int (*DVDcss_title) (dvdcss_handle, int);
-static int (*DVDcss_read) (dvdcss_handle, void *, int, int);
-static char * (*DVDcss_error) (dvdcss_handle);
-#endif
-
-/* The DVDinput handle, add stuff here for new input methods. */
-struct dvd_input_s {
- /* libdvdcss handle */
- dvdcss_handle dvdcss;
-
- /* dummy file input */
- int fd;
-};
-
-
-/**
- * initialize and open a DVD device or file.
- */
-static dvd_input_t css_open(const char *target)
-{
- dvd_input_t dev;
-
- /* Allocate the handle structure */
- dev = (dvd_input_t) malloc(sizeof(struct dvd_input_s));
- if(dev == NULL) {
- /* malloc has set errno to ENOMEM */
- return NULL;
- }
-
- /* Really open it with libdvdcss */
- dev->dvdcss = DVDcss_open(target);
- if(dev->dvdcss == 0) {
- free(dev);
- dev = NULL;
- }
-
- return dev;
-}
-
-/**
- * return the last error message
- */
-static char *css_error(dvd_input_t dev)
-{
- return DVDcss_error(dev->dvdcss);
-}
-
-/**
- * seek into the device.
- */
-static int css_seek(dvd_input_t dev, int blocks)
-{
- /* DVDINPUT_NOFLAGS should match the DVDCSS_NOFLAGS value. */
- return DVDcss_seek(dev->dvdcss, blocks, DVDINPUT_NOFLAGS);
-}
-
-/**
- * set the block for the begining of a new title (key).
- */
-static int css_title(dvd_input_t dev, int block)
-{
- return DVDcss_title(dev->dvdcss, block);
-}
-
-/**
- * read data from the device.
- */
-static int css_read(dvd_input_t dev, void *buffer, int blocks, int flags)
-{
- return DVDcss_read(dev->dvdcss, buffer, blocks, flags);
-}
-
-/**
- * close the DVD device and clean up the library.
- */
-static int css_close(dvd_input_t dev)
-{
- int ret;
-
- ret = DVDcss_close(dev->dvdcss);
-
- if(ret < 0)
- return ret;
-
- free(dev);
-
- return 0;
-}
-
-/* Need to use O_BINARY for WIN32 */
-#ifndef O_BINARY
-#ifdef _O_BINARY
-#define O_BINARY _O_BINARY
-#else
-#define O_BINARY 0
-#endif
-#endif
-
-/**
- * initialize and open a DVD device or file.
- */
-static dvd_input_t file_open(const char *target)
-{
- dvd_input_t dev;
- char *use_odirect;
- int oflags;
-
- oflags = O_RDONLY | O_BINARY;
- use_odirect = getenv("DVDREAD_USE_DIRECT");
- if(use_odirect) {
-#ifndef O_DIRECT
-#define O_DIRECT 0
-#endif
- oflags |= O_DIRECT;
- }
- /* Allocate the library structure */
- dev = (dvd_input_t) malloc(sizeof(struct dvd_input_s));
- if(dev == NULL) {
- return NULL;
- }
-
- /* Open the device */
- dev->fd = open(target, oflags);
- if(dev->fd < 0) {
- free(dev);
- return NULL;
- }
-
- return dev;
-}
-
-/**
- * return the last error message
- */
-static char *file_error(dvd_input_t dev)
-{
- /* use strerror(errno)? */
- return (char *)"unknown error";
-}
-
-/**
- * seek into the device.
- */
-static int file_seek(dvd_input_t dev, int blocks)
-{
- off_t pos = (off_t)blocks * (off_t)DVD_VIDEO_LB_LEN;
-
- pos = lseek(dev->fd, pos, SEEK_SET);
- if(pos < 0) {
- return pos;
- }
- /* assert pos % DVD_VIDEO_LB_LEN == 0 */
- return (int) (pos / DVD_VIDEO_LB_LEN);
-}
-
-/**
- * set the block for the begining of a new title (key).
- */
-static int file_title(dvd_input_t dev, int block)
-{
- return -1;
-}
-
-/**
- * read data from the device.
- */
-static int file_read(dvd_input_t dev, void *buffer, int blocks, int flags)
-{
- size_t len;
- ssize_t ret;
- unsigned char *buf = buffer;
-
- len = (size_t)blocks * DVD_VIDEO_LB_LEN;
-
- while(len > 0) {
-
- ret = read(dev->fd, buf, len);
-
- if(ret < 0) {
- /* One of the reads failed, too bad. We won't even bother
- * returning the reads that went ok, and as in the posix spec
- * the file postition is left unspecified after a failure. */
- return ret;
- }
-
- if(ret == 0) {
- /* Nothing more to read. Return the whole blocks, if any, that we got.
- and adjust the file possition back to the previous block boundary. */
- size_t bytes = (size_t)blocks * DVD_VIDEO_LB_LEN - len;
- off_t over_read = -(bytes % DVD_VIDEO_LB_LEN);
- /*off_t pos =*/ lseek(dev->fd, over_read, SEEK_CUR);
- /* should have pos % 2048 == 0 */
- return (int) (bytes / DVD_VIDEO_LB_LEN);
- }
-
- buf+=ret;
- len -= ret;
- }
-
- return blocks;
-}
-
-/**
- * close the DVD device and clean up.
- */
-static int file_close(dvd_input_t dev)
-{
- int ret;
-
- ret = close(dev->fd);
-
- if(ret < 0)
- return ret;
-
- free(dev);
-
- return 0;
-}
-
-
-static void *dvdcss_library = NULL;
-static int dvdcss_library_init = 0;
-
-/**
- * Free any objects allocated by dvdinput_setup.
- * Should only be called when libdvdread is not to be used any more.
- * Closes dlopened libraries.
- */
-void dvdinput_free(void)
-{
-#ifdef HAVE_DVDCSS_DVDCSS_H
- /* linked statically, nothing to free */
- return;
-#else
- if(dvdcss_library) {
- dlclose(dvdcss_library);
- dvdcss_library = NULL;
- }
- dvdcss_library_init = 0;
- return;
-#endif
-}
-
-
-/**
- * Setup read functions with either libdvdcss or minimal DVD access.
- */
-int dvdinput_setup(void)
-{
- char **dvdcss_version = NULL;
- int verbose;
-
- /* dlopening libdvdcss */
- if(dvdcss_library_init) {
- /* libdvdcss is already dlopened, function ptrs set */
- if(dvdcss_library) {
- return 1; /* css available */
- } else {
- return 0; /* css not available */
- }
- }
-
- verbose = get_verbose();
-
-#ifdef HAVE_DVDCSS_DVDCSS_H
- /* linking to libdvdcss */
- dvdcss_library = &dvdcss_library; /* Give it some value != NULL */
- /* the DVDcss_* functions have been #defined at the top */
- dvdcss_version = &dvdcss_interface_2;
-
-#else
-
- dvdcss_library = dlopen("libdvdcss.so.2", RTLD_LAZY);
-
- if(dvdcss_library != NULL) {
-#if defined(__OpenBSD__) && !defined(__ELF__)
-#define U_S "_"
-#else
-#define U_S
-#endif
- DVDcss_open = (dvdcss_handle (*)(const char*))
- dlsym(dvdcss_library, U_S "dvdcss_open");
- DVDcss_close = (int (*)(dvdcss_handle))
- dlsym(dvdcss_library, U_S "dvdcss_close");
- DVDcss_title = (int (*)(dvdcss_handle, int))
- dlsym(dvdcss_library, U_S "dvdcss_title");
- DVDcss_seek = (int (*)(dvdcss_handle, int, int))
- dlsym(dvdcss_library, U_S "dvdcss_seek");
- DVDcss_read = (int (*)(dvdcss_handle, void*, int, int))
- dlsym(dvdcss_library, U_S "dvdcss_read");
- DVDcss_error = (char* (*)(dvdcss_handle))
- dlsym(dvdcss_library, U_S "dvdcss_error");
-
- dvdcss_version = (char **)dlsym(dvdcss_library, U_S "dvdcss_interface_2");
-
- if(dlsym(dvdcss_library, U_S "dvdcss_crack")) {
- if(verbose >= 0) {
- fprintf(stderr,
- "libdvdread: Old (pre-0.0.2) version of libdvdcss found.\n"
- "libdvdread: You should get the latest version from "
- "http://www.videolan.org/\n" );
- }
- dlclose(dvdcss_library);
- dvdcss_library = NULL;
- } else if(!DVDcss_open || !DVDcss_close || !DVDcss_title || !DVDcss_seek
- || !DVDcss_read || !DVDcss_error || !dvdcss_version) {
- if(verbose >= 0) {
- fprintf(stderr, "libdvdread: Missing symbols in libdvdcss.so.2, "
- "this shouldn't happen !\n");
- }
- dlclose(dvdcss_library);
- dvdcss_library = NULL;
- }
- }
-#endif /* HAVE_DVDCSS_DVDCSS_H */
-
- dvdcss_library_init = 1;
-
- if(dvdcss_library) {
- /*
- char *psz_method = getenv( "DVDCSS_METHOD" );
- char *psz_verbose = getenv( "DVDCSS_VERBOSE" );
- fprintf(stderr, "DVDCSS_METHOD %s\n", psz_method);
- fprintf(stderr, "DVDCSS_VERBOSE %s\n", psz_verbose);
- */
- if(verbose >= 1) {
- fprintf(stderr, "libdvdread: Using libdvdcss version %s for DVD access\n",
- *dvdcss_version);
- }
- /* libdvdcss wrapper functions */
- dvdinput_open = css_open;
- dvdinput_close = css_close;
- dvdinput_seek = css_seek;
- dvdinput_title = css_title;
- dvdinput_read = css_read;
- dvdinput_error = css_error;
- return 1;
-
- } else {
- if(verbose >= 1) {
- fprintf(stderr, "libdvdread: Encrypted DVD support unavailable.\n");
- }
- /* libdvdcss replacement functions */
- dvdinput_open = file_open;
- dvdinput_close = file_close;
- dvdinput_seek = file_seek;
- dvdinput_title = file_title;
- dvdinput_read = file_read;
- dvdinput_error = file_error;
- return 0;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-26 14:11:20 +0000