dvd.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/cdrom.h>
#include <errno.h>
#include <string.h>
#include <mntent.h>
#include <sys/wait.h>
#include <sys/utsname.h>
#include <scsi/scsi.h>
#include <scsi/sg.h>
#include <poll.h>
#include <sys/time.h>
#include "dvd.h"

Data Structures
struct	ScsiCommand

Macros
#define	CREAM_ON_ERRNO(s)
#define	ERRCODE(s)
#define	SK(errcode)
#define	ASC(errcode)
#define	ASCQ(errcode)
#define	_LARGEFILE_SOURCE
#define	_LARGEFILE64_SOURCE
#define	_FILE_OFFSET_BITS   64
#define	_GNU_SOURCE
#define	SG_FLAG_LUN_INHIBIT   0
#define	DIRECTION(i)

Typedefs
typedef struct ScsiCommand	ScsiCommand

Enumerations
enum	Direction { NONE = CGC_DATA_NONE , READ = CGC_DATA_READ , WRITE = CGC_DATA_WRITE }

Functions
static ScsiCommand *	scsi_command_new (void)
static ScsiCommand *	scsi_command_new_from_fd (int f)
static void	scsi_command_free (ScsiCommand *cmd)
static int	scsi_command_transport (ScsiCommand *cmd, Direction dir, void *buf, size_t sz)
static void	scsi_command_init (ScsiCommand *cmd, size_t i, int arg)
int	get_dvd_profile (int fd)

Variables
const int	Dir_xlate [4]

Macro Definition Documentation

_FILE_OFFSET_BITS

#define _FILE_OFFSET_BITS   64

_GNU_SOURCE

#define _GNU_SOURCE

_LARGEFILE64_SOURCE

#define _LARGEFILE64_SOURCE

_LARGEFILE_SOURCE

#define _LARGEFILE_SOURCE

ASC

#define ASC

(

errcode

)

Value:

(((errcode)>>8)&0xFF)

ASCQ

#define ASCQ

(

errcode

)

Value:

((errcode)&0xFF)

CREAM_ON_ERRNO

#define CREAM_ON_ERRNO

(

s

)

Value:

    do {                                \
    switch ((s)[2]&0x0F)                                        \
    {   case 2: if ((s)[12]==4) errno=EAGAIN;   break;          \
        case 5: errno=EINVAL;                                   \
                if ((s)[13]==0)                                 \
                {   if ((s)[12]==0x21)          errno=ENOSPC;   \
                    else if ((s)[12]==0x20)     errno=ENODEV;   \
                }                                               \
                break;                                          \
    }                                                           \
} while(0)

Referenced by scsi_command_transport().

DIRECTION

#define DIRECTION

(

i

)

Value:

(Dir_xlate[i]);

Referenced by scsi_command_transport().

ERRCODE

#define ERRCODE

(

s

)

Value:

((((s)[2]&0x0F)<<16)|((s)[12]<<8)|((s)[13]))

Referenced by scsi_command_transport().

SG_FLAG_LUN_INHIBIT

#define SG_FLAG_LUN_INHIBIT   0

Referenced by scsi_command_init().

SK

#define SK

(

errcode

)

Value:

(((errcode)>>16)&0xF)

Typedef Documentation

ScsiCommand

typedef struct ScsiCommand ScsiCommand

Enumeration Type Documentation

Direction

enum Direction

Enumerator
NONE
READ
WRITE

Function Documentation

get_dvd_profile()

int get_dvd_profile

(

int

fd

)

References DRIVE_CDROM_CAPS_BDR, DRIVE_CDROM_CAPS_BDRE, DRIVE_CDROM_CAPS_BDROM, DRIVE_CDROM_CAPS_DVDPLUSR, DRIVE_CDROM_CAPS_DVDPLUSRDL, DRIVE_CDROM_CAPS_DVDPLUSRW, DRIVE_CDROM_CAPS_DVDPLUSRWDL, DRIVE_CDROM_CAPS_DVDRDL, DRIVE_CDROM_CAPS_DVDRW, DRIVE_CDROM_CAPS_HDDVDR, DRIVE_CDROM_CAPS_HDDVDROM, DRIVE_CDROM_CAPS_HDDVDRW, READ, scsi_command_free(), scsi_command_init(), scsi_command_new_from_fd(), and scsi_command_transport().

Referenced by add_cdrom_info().

scsi_command_free()

void scsi_command_free ( ScsiCommand * cmd )

static

References ScsiCommand::autoclose, ScsiCommand::fd, and ScsiCommand::filename.

Referenced by get_dvd_profile().

scsi_command_init()

void scsi_command_init ( ScsiCommand * cmd, size_t i, int arg )

static

References ScsiCommand::_sense, ScsiCommand::cgc, ScsiCommand::s, SG_FLAG_LUN_INHIBIT, ScsiCommand::sg_io, and ScsiCommand::u.

Referenced by get_dvd_profile().

scsi_command_new()

ScsiCommand * scsi_command_new ( void )

static

References ScsiCommand::autoclose, ScsiCommand::fd, and ScsiCommand::filename.

Referenced by scsi_command_new_from_fd().

scsi_command_new_from_fd()

ScsiCommand * scsi_command_new_from_fd ( int f )

static

References ScsiCommand::autoclose, ScsiCommand::fd, and scsi_command_new().

Referenced by get_dvd_profile().

scsi_command_transport()

int scsi_command_transport ( ScsiCommand * cmd, Direction dir, void * buf, size_t sz )

static

References CREAM_ON_ERRNO, DIRECTION, ERRCODE, ScsiCommand::fd, and ScsiCommand::sg_io.

Referenced by get_dvd_profile().

Variable Documentation

Dir_xlate

const int Dir_xlate[4]

Initial value:

= {
        0,                      
        SG_DXFER_TO_DEV,        
        SG_DXFER_FROM_DEV,      
        SG_DXFER_NONE           
}