claunia/libcdio-osx
Archived
1
0
Fork 0
Code Issues 2 Pull Requests Actions Packages Projects Releases Wiki Activity

MS Windows iocontrol SCSI Passthrough fixes. Change test/driver/mmc.c - we

Browse Source 
can't that when we get sense data, that we also gegt status back that pass through fails.
On MS Windows it doesn't seem to work that way.
This commit is contained in:
R. Bernstein
2010-02-02 22:15:55 -05:00
parent 8e9339917c
commit 60b237a161
2 changed files with 123 additions and 148 deletions
Download Patch File Download Diff File Expand all files Collapse all files

118
lib/driver/MSWindows/win32_ioctl.c
View File

@@ -23,8 +23,6 @@
# include "config.h" # include "config.h"
#endif #endif
static const char _rcsid[] = "$Id: win32_ioctl.c,v 1.30 2008/04/21 18:30:21 karl Exp $";
#ifdef HAVE_WIN32_CDROM #ifdef HAVE_WIN32_CDROM
#if defined (_XBOX) #if defined (_XBOX)
@@ -232,8 +230,7 @@ audio_read_subchannel_win32ioctl (void *p_user_data,
return DRIVER_OP_SUCCESS; return DRIVER_OP_SUCCESS;
} }
/**
/*!
Resume playing an audio CD. Resume playing an audio CD.
@param p_user_data the CD object to be acted upon. @param p_user_data the CD object to be acted upon.
@@ -256,7 +253,7 @@ audio_resume_win32ioctl (void *p_user_data)
return DRIVER_OP_SUCCESS; return DRIVER_OP_SUCCESS;
} }
/*! /**
Set the volume of an audio CD. Set the volume of an audio CD.
@param p_user_data pointer to the CD object to be acted upon. @param p_user_data pointer to the CD object to be acted upon.
@@ -302,7 +299,7 @@ audio_get_volume_win32ioctl (void *p_user_data,
return DRIVER_OP_SUCCESS; return DRIVER_OP_SUCCESS;
} }
/*! /**
Stop playing an audio CD. Stop playing an audio CD.
@param p_user_data the CD object to be acted upon. @param p_user_data the CD object to be acted upon.
@@ -325,7 +322,7 @@ audio_stop_win32ioctl (void *p_user_data)
return DRIVER_OP_SUCCESS; return DRIVER_OP_SUCCESS;
} }
/*! /**
Close the tray of a CD-ROM Close the tray of a CD-ROM
@param p_user_data the CD object to be acted upon. @param p_user_data the CD object to be acted upon.
@@ -340,7 +337,7 @@ close_tray_win32ioctl (const char *psz_win32_drive)
OSVERSIONINFO ov; OSVERSIONINFO ov;
HANDLE h_device_handle; HANDLE h_device_handle;
bool b_success; BOOL b_success;
memset(&ov,0,sizeof(OSVERSIONINFO)); memset(&ov,0,sizeof(OSVERSIONINFO));
ov.dwOSVersionInfoSize=sizeof(OSVERSIONINFO); ov.dwOSVersionInfoSize=sizeof(OSVERSIONINFO);
@@ -356,7 +353,7 @@ close_tray_win32ioctl (const char *psz_win32_drive)
FILE_SHARE_READ | FILE_SHARE_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, NULL,
OPEN_EXISTING, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, 0,
NULL ); NULL );
if( h_device_handle == INVALID_HANDLE_VALUE ) { if( h_device_handle == INVALID_HANDLE_VALUE ) {
@@ -370,7 +367,7 @@ close_tray_win32ioctl (const char *psz_win32_drive)
CloseHandle(h_device_handle); CloseHandle(h_device_handle);
if ( ! b_success ) { if ( b_success != 0 ) {
windows_error(CDIO_LOG_INFO, GetLastError()); windows_error(CDIO_LOG_INFO, GetLastError());
return DRIVER_OP_ERROR; return DRIVER_OP_ERROR;
} }
@@ -380,7 +377,7 @@ close_tray_win32ioctl (const char *psz_win32_drive)
#endif #endif
} }
/*! /**
Produce a text composed from the system SCSI address tuple Produce a text composed from the system SCSI address tuple
"Port,Path,Target,Lun" and store "Port,Path,Target,Lun" and store
it in generic_img_private_t.scsi_tuple. it in generic_img_private_t.scsi_tuple.
@@ -428,7 +425,7 @@ set_scsi_tuple_win32ioctl(_img_private_t *env)
} }
#endif #endif
/*! /**
Run a SCSI MMC command. Run a SCSI MMC command.
env private CD structure env private CD structure
@@ -443,7 +440,7 @@ set_scsi_tuple_win32ioctl(_img_private_t *env)
Return 0 if command completed successfully. Return 0 if command completed successfully.
*/ */
#if 0 #if 1
int int
run_mmc_cmd_win32ioctl( void *p_user_data, run_mmc_cmd_win32ioctl( void *p_user_data,
unsigned int i_timeout_ms, unsigned int i_timeout_ms,
@@ -452,66 +449,55 @@ run_mmc_cmd_win32ioctl( void *p_user_data,
unsigned int i_buf, /*in/out*/ void *p_buf ) unsigned int i_buf, /*in/out*/ void *p_buf )
{ {
_img_private_t *p_env = p_user_data; _img_private_t *p_env = p_user_data;
SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER sptdwb; SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER swb;
bool b_success; BOOL b_success;
unsigned long length = 0;
DWORD dw_bytes_returned; DWORD dw_bytes_returned;
memset(&sptdwb, 0, sizeof(sptdwb)); memset(&swb, 0, sizeof(swb));
sptdwb.sptd.Length = sizeof(sptdwb.sptd); swb.sptd.Length = sizeof(SCSI_PASS_THROUGH_DIRECT);
sptdwb.sptd.PathId = 0; /* SCSI card ID will be filled in swb.sptd.PathId = 0; /* SCSI card ID will be filled in
automatically */ automatically */
sptdwb.sptd.TargetId= 0; /* SCSI target ID will also be filled in */ swb.sptd.TargetId= 0; /* SCSI target ID will also be filled in */
sptdwb.sptd.Lun = 0; /* SCSI lun ID will also be filled in */ swb.sptd.Lun = 0; /* SCSI lun ID will also be filled in */
sptdwb.sptd.CdbLength = i_cdb; swb.sptd.CdbLength = i_cdb;
sptdwb.sptd.SenseInfoLength = sizeof(sptdwb.ucSenseBuf); swb.sptd.SenseInfoLength = sizeof(swb.ucSenseBuf);
sptdwb.sptd.DataIn = swb.sptd.DataIn =
(SCSI_MMC_DATA_READ == e_direction) ? SCSI_IOCTL_DATA_IN : (SCSI_MMC_DATA_READ == e_direction) ? SCSI_IOCTL_DATA_IN :
(SCSI_MMC_DATA_WRITE == e_direction) ? SCSI_IOCTL_DATA_OUT : (SCSI_MMC_DATA_WRITE == e_direction) ? SCSI_IOCTL_DATA_OUT :
SCSI_IOCTL_DATA_UNSPECIFIED; SCSI_IOCTL_DATA_UNSPECIFIED;
sptdwb.sptd.DataTransferLength= i_buf; swb.sptd.DataBuffer = p_buf;
sptdwb.sptd.TimeOutValue = msecs2secs(i_timeout_ms); swb.sptd.DataTransferLength= i_buf;
swb.sptd.TimeOutValue = msecs2secs(i_timeout_ms);
swb.sptd.SenseInfoOffset = offsetof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER, ucSenseBuf);
sptdwb.sptd.DataBuffer = (void *) p_buf; memcpy(swb.sptd.Cdb, p_cdb, i_cdb);
/*
sptdwb.sptd.SenseInfoOffset = offsetof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER,
ucSenseBuf);
*/
sptdwb.sptd.SenseInfoOffset = 0;
memcpy(sptdwb.sptd.Cdb, p_cdb, i_cdb);
length = offsetof(SCSI_PASS_THROUGH_DIRECT_WITH_BUFFER,DataBuf) +
sptdwb.sptd.DataTransferLength;
/* Send the command to drive */ /* Send the command to drive */
b_success = DeviceIoControl(p_env->h_device_handle, b_success = DeviceIoControl(p_env->h_device_handle,
IOCTL_SCSI_PASS_THROUGH, IOCTL_SCSI_PASS_THROUGH_DIRECT,
(void *)&sptdwb, (void *)&swb,
sizeof(SCSI_PASS_THROUGH), sizeof(swb),
NULL, 0, &swb,
/* sizeof(swb),
&sptdwb,
length,
*/
&dw_bytes_returned, &dw_bytes_returned,
NULL); NULL);
if ( !b_success ) { if ( 0 == b_success ) {
windows_error(CDIO_LOG_INFO, GetLastError()); windows_error(CDIO_LOG_INFO, GetLastError());
return DRIVER_OP_ERROR; return DRIVER_OP_ERROR;
} }
/* Record SCSI sense reply for API call mmc_last_cmd_sense(). /* Record SCSI sense reply for API call mmc_last_cmd_sense().
*/ */
if (sptdwb.ucSenseBuf[7]) { if (swb.ucSenseBuf[7]) {
int sense_size = sptdwb.ucSenseBuf[7] + 8; /* SPC 4.5.3, Table 26: int sense_size = swb.ucSenseBuf[7] + 8; /* SPC 4.5.3, Table 26:
252 bytes legal, 263 bytes 252 bytes legal, 263 bytes
possible */ possible */
if (sense_size > sizeof(sptdwb.ucSenseBuf)) if (sense_size > sizeof(swb.ucSenseBuf))
sense_size = sizeof(sptdwb.ucSenseBuf); sense_size = sizeof(swb.ucSenseBuf);
memcpy((void *) p_env->gen.scsi_mmc_sense, &sptdwb.ucSenseBuf, sense_size); memcpy((void *) p_env->gen.scsi_mmc_sense, &swb.ucSenseBuf, sense_size);
p_env->gen.scsi_mmc_sense_valid = sense_size; p_env->gen.scsi_mmc_sense_valid = sense_size;
} }
@@ -528,7 +514,7 @@ run_mmc_cmd_win32ioctl( void *p_user_data,
_img_private_t *p_env = p_user_data; _img_private_t *p_env = p_user_data;
SCSI_PASS_THROUGH_WITH_BUFFER sptwb; SCSI_PASS_THROUGH_WITH_BUFFER sptwb;
bool b_success; BOOL b_success;
unsigned long length = 0; unsigned long length = 0;
DWORD dw_bytes_returned; DWORD dw_bytes_returned;
@@ -571,7 +557,7 @@ run_mmc_cmd_win32ioctl( void *p_user_data,
&dw_bytes_returned, &dw_bytes_returned,
NULL); NULL);
if ( !b_success ) { if ( 0 == b_success ) {
windows_error(CDIO_LOG_INFO, GetLastError()); windows_error(CDIO_LOG_INFO, GetLastError());
return DRIVER_OP_ERROR; return DRIVER_OP_ERROR;
} }
@@ -594,7 +580,7 @@ run_mmc_cmd_win32ioctl( void *p_user_data,
} }
#endif #endif
/*! /**
Get disc type associated with cd object. Get disc type associated with cd object.
*/ */
static discmode_t static discmode_t
@@ -627,7 +613,7 @@ dvd_discmode_win32ioctl (_img_private_t *p_env)
} }
/*! /**
Get disc type associated with cd object. Get disc type associated with cd object.
*/ */
discmode_t discmode_t
@@ -738,7 +724,7 @@ is_cdrom_win32ioctl(const char c_drive_letter)
#endif #endif
} }
/*! /**
Reads an audio device using the DeviceIoControl method into data Reads an audio device using the DeviceIoControl method into data
starting from lsn. Returns 0 if no error. starting from lsn. Returns 0 if no error.
*/ */
@@ -767,7 +753,7 @@ read_audio_sectors_win32ioctl (_img_private_t *p_env, void *data, lsn_t lsn,
return DRIVER_OP_SUCCESS; return DRIVER_OP_SUCCESS;
} }
/*! /**
Reads a single raw sector using the DeviceIoControl method into Reads a single raw sector using the DeviceIoControl method into
data starting from lsn. Returns 0 if no error. data starting from lsn. Returns 0 if no error.
*/ */
@@ -789,7 +775,7 @@ read_raw_sector (_img_private_t *p_env, void *p_buf, lsn_t lsn)
CDIO_CD_FRAMESIZE_RAW, p_buf); CDIO_CD_FRAMESIZE_RAW, p_buf);
} }
/*! /**
Reads a single mode2 sector using the DeviceIoControl method into Reads a single mode2 sector using the DeviceIoControl method into
data starting from lsn. Returns 0 if no error. data starting from lsn. Returns 0 if no error.
*/ */
@@ -810,7 +796,7 @@ read_mode2_sector_win32ioctl (_img_private_t *p_env, void *p_data,
} }
/*! /**
Reads a single mode2 sector using the DeviceIoControl method into Reads a single mode2 sector using the DeviceIoControl method into
data starting from lsn. Returns 0 if no error. data starting from lsn. Returns 0 if no error.
*/ */
@@ -831,7 +817,7 @@ read_mode1_sector_win32ioctl (_img_private_t *env, void *data,
} }
/*! /**
Initialize internal structures for CD device. Initialize internal structures for CD device.
*/ */
bool bool
@@ -897,7 +883,7 @@ init_win32ioctl (_img_private_t *env)
FILE_SHARE_READ | FILE_SHARE_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL, NULL,
OPEN_EXISTING, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, 0,
NULL ); NULL );
if( env->h_device_handle == INVALID_HANDLE_VALUE ) if( env->h_device_handle == INVALID_HANDLE_VALUE )
@@ -909,7 +895,7 @@ init_win32ioctl (_img_private_t *env)
FILE_SHARE_READ, FILE_SHARE_READ,
NULL, NULL,
OPEN_EXISTING, OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL, 0,
NULL ); NULL );
if (env->h_device_handle == NULL) if (env->h_device_handle == NULL)
return false; return false;
@@ -922,7 +908,7 @@ init_win32ioctl (_img_private_t *env)
return false; return false;
} }
/*! /**
Read and cache the CD's Track Table of Contents and track info. Read and cache the CD's Track Table of Contents and track info.
via a SCSI MMC READ_TOC (FULTOC). Return true if successful or via a SCSI MMC READ_TOC (FULTOC). Return true if successful or
false if an error. false if an error.
@@ -1026,7 +1012,7 @@ read_fulltoc_win32mmc (_img_private_t *p_env)
return false; return false;
} }
/*! /**
Read and cache the CD's Track Table of Contents and track info. Read and cache the CD's Track Table of Contents and track info.
Return true if successful or false if an error. Return true if successful or false if an error.
*/ */
@@ -1114,7 +1100,7 @@ read_toc_win32ioctl (_img_private_t *p_env)
return true; return true;
} }
/*! /**
Return the media catalog number MCN. Return the media catalog number MCN.
Note: string is malloc'd so caller should free() then returned Note: string is malloc'd so caller should free() then returned
@@ -1148,7 +1134,7 @@ get_mcn_win32ioctl (const _img_private_t *p_env) {
return NULL; return NULL;
} }
/*! /**
Get the format (XA, DATA, AUDIO) of a track. Get the format (XA, DATA, AUDIO) of a track.
*/ */
track_format_t track_format_t

157
test/driver/mmc.c
View File

@@ -146,14 +146,14 @@ tmmc_test_unit_ready(CdIo_t *p_cdio,
{ {
int i_status; int i_status;
mmc_cdb_t cdb = {{0, }}; mmc_cdb_t cdb = {{0, }};
char buf[1]; /* just to have an address to pass to mmc_run_cmd() */ char buf[2]; /* just to have an address to pass to mmc_run_cmd() */
memset(cdb.field, 0, 6); memset(cdb.field, 0, 6);
cdb.field[0] = 0x00; /* TEST UNIT READY, SPC-3 6.33 */ cdb.field[0] = 0x00; /* TEST UNIT READY, SPC-3 6.33 */
if (flag & 1) if (flag & 1)
fprintf(stderr, "tmmc_test_unit_ready ... "); fprintf(stderr, "tmmc_test_unit_ready ... ");
i_status = mmc_run_cmd(p_cdio, 10000, &cdb, SCSI_MMC_DATA_NONE, 0, buf); i_status = mmc_run_cmd(p_cdio, 10000, &cdb, SCSI_MMC_DATA_NONE, 2, buf);
return tmmc_handle_outcome(p_cdio, i_status, sense_avail, sense_reply, return tmmc_handle_outcome(p_cdio, i_status, sense_avail, sense_reply,
flag & 1); flag & 1);
@@ -635,100 +635,90 @@ tmmc_test(char *drive_path, int flag)
/* Cause sense reply failure by requesting inappropriate mode page 3Eh */ /* Cause sense reply failure by requesting inappropriate mode page 3Eh */
ret = tmmc_mode_sense(p_cdio, &sense_avail, sense, ret = tmmc_mode_sense(p_cdio, &sense_avail, sense,
0x3e, 0, alloc_len, buf, &buf_fill, !!verbose); 0x3e, 0, alloc_len, buf, &buf_fill, !!verbose);
if (ret != 0 && sense_avail < 18) { if (sense_avail < 18) {
fprintf(stderr, fprintf(stderr,
"Error: An illegal command yields only %d sense bytes. Expected >= 18.\n", "Error: An illegal command yields only %d sense bytes. Expected >= 18.\n",
sense_avail); sense_avail);
{ret = 2; goto ex;} {ret = 2; goto ex;}
} else if(ret == 0) {
fprintf(stderr,
"Warning: tmmc_mode_sense() cannot cause a failure via mode page 3Eh\n");
fprintf(stderr,
"Consider to set in tmmc_test(): with_tray_dance = 1\n");
} }
/* Test availability of sense reply in case of unready drive. /* Test availability of sense reply in case of unready drive.
E.g. if the tray is already ejected. E.g. if the tray is already ejected.
*/ */
ret = tmmc_test_unit_ready(p_cdio, &sense_avail, sense, !!verbose); ret = tmmc_test_unit_ready(p_cdio, &sense_avail, sense, !!verbose);
if (ret != 0 && sense_avail < 18) { if (sense_avail < 18) {
fprintf(stderr, fprintf(stderr,
"Error: Drive not ready. Only %d sense bytes. Expected >= 18.\n", "Error: Drive not ready. Only %d sense bytes. Expected >= 18.\n",
sense_avail); sense_avail);
{ret = 2; goto ex;} {ret = 2; goto ex;}
} }
/* Provoke sense reply by requesting inappropriate mode page 3Eh */ /* Cause sense reply failure by requesting inappropriate mode page 3Eh */
ret = tmmc_mode_sense(p_cdio, &sense_avail, sense, ret = tmmc_mode_sense(p_cdio, &sense_avail, sense,
0x3e, 0, alloc_len, buf, &buf_fill, !!verbose); 0x3e, 0, alloc_len, buf, &buf_fill, !!verbose);
if (ret != 0 && sense_avail < 18) { if (sense_avail < 18) {
fprintf(stderr, fprintf(stderr,
"Error: Deliberately illegal command yields only %d sense bytes. Expected >= 18.\n", "Error: Deliberately illegal command yields only %d sense bytes. Expected >= 18.\n",
sense_avail); sense_avail);
{ret = 2; goto ex;} {ret = 2; goto ex;}
} else if(ret == 0) { }
fprintf(stderr,
"Warning: tmmc_mode_sense() cannot cause failure via mode page 3Eh\n");
fprintf(stderr, if (emul_lack_of_wperm) { /* To check behavior with lack of w-permission */
"Consider to set in tmmc_test(): with_tray_dance = 1\n"); fprintf(stderr,
"tmmc_test: SIMULATING LACK OF WRITE CAPABILITIES by access mode IOCTL\n");
cdio_destroy(p_cdio);
p_cdio = cdio_open_am(drive_path, DRIVER_DEVICE, "IOCTL");
}
/* Test write permission */ /* Try whether a mode page 2Ah can be set */
ret = tmmc_rwr_mode_page(p_cdio, !!verbose);
if (ret <= 0) {
if (ret < 0) {
fprintf(stderr, "Error: tmmc_rwr_mode_page() had severe failure.\n");
{ret = 3; goto ex;}
} }
fprintf(stderr, "Warning: tmmc_rwr_mode_page() had minor failure.\n");
}
if (emul_lack_of_wperm) { /* To check behavior with lack of w-permission */ if (with_tray_dance) {
fprintf(stderr, /* More surely provoke a non-trivial sense reply */
"tmmc_test: SIMULATING LACK OF WRITE CAPABILITIES by access mode IOCTL\n"); if (test_cycle_with_media) {
cdio_destroy(p_cdio); /* Eject, wait, load, watch by test unit ready loop */
p_cdio = cdio_open_am(drive_path, DRIVER_DEVICE, "IOCTL"); ret = tmmc_eject_load_cycle(p_cdio, 2 | !!verbose);
} if (ret <= 0) {
if (ret < 0) {
/* Test write permission */ /* Try whether a mode page 2Ah can be set */
ret = tmmc_rwr_mode_page(p_cdio, !!verbose);
if (ret <= 0) {
if (ret < 0) {
fprintf(stderr, "Error: tmmc_rwr_mode_page() had severe failure.\n");
{ret = 3; goto ex;}
}
fprintf(stderr, "Warning: tmmc_rwr_mode_page() had minor failure.\n");
}
if (with_tray_dance) {
/* More surely provoke a non-trivial sense reply */
if (test_cycle_with_media) {
/* Eject, wait, load, watch by test unit ready loop */
ret = tmmc_eject_load_cycle(p_cdio, 2 | !!verbose);
if (ret <= 0) {
if (ret < 0) {
fprintf(stderr,
"Error: tmmc_eject_load_cycle() had severe failure.\n");
{ret = 4; goto ex;}
}
fprintf(stderr, fprintf(stderr,
"Warning: tmmc_eject_load_cycle() had minor failure.\n"); "Error: tmmc_eject_load_cycle() had severe failure.\n");
{ret = 4; goto ex;}
} }
} else { fprintf(stderr,
/* Eject, test for proper unreadiness, load */ "Warning: tmmc_eject_load_cycle() had minor failure.\n");
ret = tmmc_eject_test_load(p_cdio, !!verbose);
if (ret <= 0) {
if (ret < 0) {
fprintf(stderr,
"Error: tmmc_eject_test_load() had severe failure.\n");
{ret = 5; goto ex;}
}
fprintf(stderr,
"Warning: tmmc_eject_test_load() had minor failure.\n");
}
/* Wait for drive attention */
tmmc_wait_for_drive(p_cdio, 15, 2 | !!verbose);
} }
} else {
/* Eject, test for proper unreadiness, load */
ret = tmmc_eject_test_load(p_cdio, !!verbose);
if (ret <= 0) {
if (ret < 0) {
fprintf(stderr,
"Error: tmmc_eject_test_load() had severe failure.\n");
{ret = 5; goto ex;}
}
fprintf(stderr,
"Warning: tmmc_eject_test_load() had minor failure.\n");
}
/* Wait for drive attention */
tmmc_wait_for_drive(p_cdio, 15, 2 | !!verbose);
} }
}
/* How are we, finally ? */ /* How are we, finally ? */
ret = tmmc_test_unit_ready(p_cdio, &sense_valid, sense, !!verbose); ret = tmmc_test_unit_ready(p_cdio, &sense_valid, sense, !!verbose);
if ((flag & 1) && ret != 0 && sense[2] == 2 && sense[12] == 0x3a) if ((flag & 1) && ret != 0 && sense[2] == 2 && sense[12] == 0x3a)
fprintf(stderr, "tmmc_test: Note: No loaded media detected.\n"); fprintf(stderr, "tmmc_test: Note: No loaded media detected.\n");
ret = 0; ret = 0;
} }
ex:; ex:;
@@ -785,8 +775,7 @@ main(int argc, const char *argv[])
} }
if ( psz_have_mmc if ( psz_have_mmc
&& 0 == strncmp("true", psz_have_mmc, sizeof("true")) && 0 == strncmp("true", psz_have_mmc, sizeof("true")) ) {
&& (DRIVER_WIN32 != cdio_get_driver_id(p_cdio)) ) {
scsi_tuple = cdio_get_arg(p_cdio, "scsi-tuple"); scsi_tuple = cdio_get_arg(p_cdio, "scsi-tuple");
if (scsi_tuple == NULL) { if (scsi_tuple == NULL) {
fprintf(stderr, "cdio_get_arg(\"scsi-tuple\") returns NULL.\n"); fprintf(stderr, "cdio_get_arg(\"scsi-tuple\") returns NULL.\n");