Prepared test bed for burn_drive_info_forget() as regular API call
This commit is contained in:
parent
6f3779f0f1
commit
187408f4b8
@ -90,6 +90,7 @@ libinclude_HEADERS = \
|
|||||||
## Build test applications
|
## Build test applications
|
||||||
noinst_PROGRAMS = \
|
noinst_PROGRAMS = \
|
||||||
test/libburner \
|
test/libburner \
|
||||||
|
test/testburner \
|
||||||
test/blank \
|
test/blank \
|
||||||
test/burn \
|
test/burn \
|
||||||
test/burniso \
|
test/burniso \
|
||||||
@ -105,6 +106,9 @@ noinst_PROGRAMS = \
|
|||||||
test_libburner_CPPFLAGS = -Ilibburn
|
test_libburner_CPPFLAGS = -Ilibburn
|
||||||
test_libburner_LDADD = $(libburn_libburn_la_OBJECTS) $(THREAD_LIBS)
|
test_libburner_LDADD = $(libburn_libburn_la_OBJECTS) $(THREAD_LIBS)
|
||||||
test_libburner_SOURCES = test/libburner.c
|
test_libburner_SOURCES = test/libburner.c
|
||||||
|
test_testburner_CPPFLAGS = -Ilibburn
|
||||||
|
test_testburner_LDADD = $(libburn_libburn_la_OBJECTS) $(THREAD_LIBS)
|
||||||
|
test_testburner_SOURCES = test/testburner.c
|
||||||
test_devices_CPPFLAGS = -Ilibburn
|
test_devices_CPPFLAGS = -Ilibburn
|
||||||
test_devices_LDADD = $(libburn_libburn_la_OBJECTS) $(THREAD_LIBS)
|
test_devices_LDADD = $(libburn_libburn_la_OBJECTS) $(THREAD_LIBS)
|
||||||
test_devices_SOURCES = test/devices.c
|
test_devices_SOURCES = test/devices.c
|
||||||
|
|||||||
780
test/testburner.c
Normal file
780
test/testburner.c
Normal file
@ -0,0 +1,780 @@
|
|||||||
|
|
||||||
|
/* test/testburner.c is an experimental version of test/libburner.c
|
||||||
|
published for enabling tests of upcoming libburn features or gestures
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* This test is about a way to drop unwanted drives without shutting down
|
||||||
|
and re-initializing libburn. It is expected to do fine on systems with
|
||||||
|
a single drive because it will do not drop any drive then.
|
||||||
|
|
||||||
|
The experiments will need a system with at least two burner drives.
|
||||||
|
Load both drives with blank media. The example experiments try to simulate
|
||||||
|
the burn, but better use CD-RW media.
|
||||||
|
|
||||||
|
The goal is to operate one burner while the other stays still visible to
|
||||||
|
libburn and can be used too, provided your system is able - mine would do
|
||||||
|
poorly. With 4x media ... maybe.
|
||||||
|
|
||||||
|
Terminal 1:
|
||||||
|
echo | \
|
||||||
|
test/testburner --test_ticket_62 --drive 0 --stdin_size 681574400 -
|
||||||
|
|
||||||
|
Do not interrupt this run ! Use smaller --stdin_size to pseudo-burn less
|
||||||
|
than 650 MB.
|
||||||
|
(Best is to have "cdrecord dev=... -reset" ready in Terminal 3.)
|
||||||
|
|
||||||
|
Terminal 2 (while burn on terminal 1 is running):
|
||||||
|
test/testburner --drive -
|
||||||
|
|
||||||
|
You should get listed the other drive and the busy one should not appear.
|
||||||
|
|
||||||
|
Terminal 2 (while terminal 1 still burning):
|
||||||
|
echo | \
|
||||||
|
test/testburner --test_ticket_62 --drive 0 --stdin_size 10000000
|
||||||
|
|
||||||
|
This should start a burn on your second drive. Wether throughput is
|
||||||
|
acceptable will depend on your system backbone.
|
||||||
|
|
||||||
|
Yes, if all goes well, both drives will have address 0. Usually i am much
|
||||||
|
in favor of using persistent addresses (/dev/hdc, /dev/sg0) but this test
|
||||||
|
is all about bus scan and dropping unneeded drives.
|
||||||
|
|
||||||
|
So taste the oddities of this approach :))
|
||||||
|
|
||||||
|
*/
|
||||||
|
static int test_ticket_62= 0;
|
||||||
|
|
||||||
|
|
||||||
|
/* test/libburner.c , API illustration of burning a single data track to CD */
|
||||||
|
/* Copyright (C) 2005 - 2006 Thomas Schmitt <scdbackup@gmx.net> */
|
||||||
|
/* Provided under GPL, see also "License and copyright aspects" at file end */
|
||||||
|
|
||||||
|
|
||||||
|
/** IMPORTANT: By default this program tries to make a simulated burn
|
||||||
|
on the CD recorder. Some obey, some do not.
|
||||||
|
If you want to burn really readable CD for sure by default,
|
||||||
|
then set this macro to 0 .
|
||||||
|
Explicit options: --burn_for_real and --try_to_simulate
|
||||||
|
*/
|
||||||
|
#define Libburner_try_to_simulatE 1
|
||||||
|
|
||||||
|
/** Overview
|
||||||
|
|
||||||
|
libburner is a minimal demo application for the library libburn as provided
|
||||||
|
on http://libburn.pykix.org . It can list the available devices, can
|
||||||
|
blank a CD-RW and can burn to CD-R or CD-RW.
|
||||||
|
It's main purpose, nevertheless, is to show you how to use libburn and also
|
||||||
|
to serve the libburn team as reference application. libburner.c does indeed
|
||||||
|
define the standard way how above three gestures can be implemented and
|
||||||
|
stay upward compatible for a good while.
|
||||||
|
|
||||||
|
Before you can do anything, you have to initialize libburn by
|
||||||
|
burn_initialize()
|
||||||
|
as it is done in main() at the end of this file. Then you aquire a
|
||||||
|
drive in an appropriate way conforming to the API. The two main
|
||||||
|
approaches are shown here in application functions:
|
||||||
|
libburner_aquire_by_adr() demonstrates usage as of cdrecord traditions
|
||||||
|
libburner_aquire_by_driveno() demonstrates a scan-and-choose approach
|
||||||
|
With that aquired drive you blank a CD-RW
|
||||||
|
libburner_blank_disc()
|
||||||
|
Between blanking and burning one eventually has to reload the drive status
|
||||||
|
libburner_regrab()
|
||||||
|
With the aquired drive you can burn to CD-R or blank CD-RW
|
||||||
|
libburner_payload()
|
||||||
|
When everything is done, main() releases the drive and shuts down libburn:
|
||||||
|
burn_drive_release();
|
||||||
|
burn_finish()
|
||||||
|
|
||||||
|
*/
|
||||||
|
|
||||||
|
/* We shall prepare for times when more than 2 GB of data are to be handled.
|
||||||
|
This gives POSIX-ly 64 bit off_t */
|
||||||
|
#ifndef _LARGEFILE_SOURCE
|
||||||
|
#define _LARGEFILE_SOURCE 1
|
||||||
|
#endif
|
||||||
|
#ifndef _FILE_OFFSET_BITS
|
||||||
|
#define _FILE_OFFSET_BITS 64
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/** See this for the decisive API specs . libburn.h is The Original */
|
||||||
|
#include <libburn/libburn.h>
|
||||||
|
|
||||||
|
/* libburn is intended for Linux systems with kernel 2.4 or 2.6 for now */
|
||||||
|
#include <stdio.h>
|
||||||
|
#include <ctype.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <unistd.h>
|
||||||
|
#include <string.h>
|
||||||
|
#include <stdlib.h>
|
||||||
|
#include <time.h>
|
||||||
|
#include <errno.h>
|
||||||
|
|
||||||
|
|
||||||
|
/** For simplicity i use global variables to represent the drives.
|
||||||
|
Drives are systemwide global, so we do not give away much of good style.
|
||||||
|
*/
|
||||||
|
|
||||||
|
/** This list will hold the drives known to libburn. This might be all CD
|
||||||
|
drives of the system and thus might impose severe impact on the system.
|
||||||
|
*/
|
||||||
|
static struct burn_drive_info *drive_list;
|
||||||
|
|
||||||
|
/** If you start a long lasting operation with drive_count > 1 then you are
|
||||||
|
not friendly to the users of other drives on those systems. Beware. */
|
||||||
|
static unsigned int drive_count;
|
||||||
|
|
||||||
|
/** This variable indicates wether the drive is grabbed and must be
|
||||||
|
finally released */
|
||||||
|
static int drive_is_grabbed = 0;
|
||||||
|
|
||||||
|
/** Wether to burn for real or to *try* to simulate a burn */
|
||||||
|
static int simulate_burn = Libburner_try_to_simulatE ;
|
||||||
|
|
||||||
|
|
||||||
|
/* Some in-advance definitions to allow a more comprehensive ordering
|
||||||
|
of the functions and their explanations in here */
|
||||||
|
int libburner_aquire_by_adr(char *drive_adr);
|
||||||
|
int libburner_aquire_by_driveno(int *drive_no);
|
||||||
|
|
||||||
|
|
||||||
|
/* ------------------------------- API gestures ---------------------------- */
|
||||||
|
|
||||||
|
/** You need to aquire a drive before burning. The API offers this as one
|
||||||
|
compact call and alternatively as application controllable gestures of
|
||||||
|
whitelisting, scanning for drives and finally grabbing one of them.
|
||||||
|
|
||||||
|
If you have a persistent address of the drive, then the compact call is
|
||||||
|
to prefer. It avoids a shutdown-init cycle of libburn and thus is more
|
||||||
|
safe against race conditions between competing users of that drive.
|
||||||
|
On modern Linux kernels, race conditions are supposed to end up by
|
||||||
|
having one single winner or by having all losers. On modern Linux
|
||||||
|
kernels, there should be no fatal disturbance of ongoing burns
|
||||||
|
of other libburn instances. We use open(O_EXCL) by default.
|
||||||
|
There are variants of cdrecord which participate in advisory O_EXCL
|
||||||
|
locking of block devices. Others possibly don't. Some kernels do
|
||||||
|
nevertheless impose locking on open drives anyway (e.g. SuSE 9.0, 2.4.21).
|
||||||
|
*/
|
||||||
|
int libburner_aquire_drive(char *drive_adr, int *driveno)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
if(drive_adr != NULL && drive_adr[0] != 0)
|
||||||
|
ret = libburner_aquire_by_adr(drive_adr);
|
||||||
|
else
|
||||||
|
ret = libburner_aquire_by_driveno(driveno);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/** If the persistent drive address is known, then this approach is much
|
||||||
|
more un-obtrusive to the systemwide livestock of drives. Only the
|
||||||
|
given drive device will be opened during this procedure.
|
||||||
|
*/
|
||||||
|
int libburner_aquire_by_adr(char *drive_adr)
|
||||||
|
{
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
printf("Aquiring drive '%s' ...\n",drive_adr);
|
||||||
|
ret = burn_drive_scan_and_grab(&drive_list,drive_adr,1);
|
||||||
|
if (ret <= 0) {
|
||||||
|
fprintf(stderr,"FAILURE with persistent drive address '%s'\n",
|
||||||
|
drive_adr);
|
||||||
|
if (strncmp(drive_adr,"/dev/sg",7) != 0 &&
|
||||||
|
strncmp(drive_adr,"/dev/hd",7) != 0)
|
||||||
|
fprintf(stderr,"\nHINT: Consider addresses like '/dev/hdc' or '/dev/sg0'\n");
|
||||||
|
} else {
|
||||||
|
printf("done\n");
|
||||||
|
drive_is_grabbed = 1;
|
||||||
|
}
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/** The upcoming method to drop unwanted drives combined with a workaround
|
||||||
|
for a drive status flaw in libburn which has to be solved yet.
|
||||||
|
@param driveno pointer to integer number of drive we want to use
|
||||||
|
(pointer, because this is to be integrated in
|
||||||
|
libburner_aquire_by_driveno())
|
||||||
|
@return <= 0 indicates failure, 1 is success
|
||||||
|
*/
|
||||||
|
int libburner_drop_unwanted_and_grab(int *driveno)
|
||||||
|
{
|
||||||
|
int i, ret= 1;
|
||||||
|
|
||||||
|
printf("--test_ticket_62: The experiment begins ...\n");
|
||||||
|
|
||||||
|
/* Drop all drives which you do not want to use */
|
||||||
|
for (i = 0; i < drive_count; i++) {
|
||||||
|
if (0 && i == *driveno) /* the one drive we want to keep */
|
||||||
|
continue;
|
||||||
|
printf("--test_ticket_62: Dropping drive %d\n",i);
|
||||||
|
ret = burn_drive_info_forget(&(drive_list[i]),0);
|
||||||
|
if (ret != 1)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
if (i < drive_count) {
|
||||||
|
fprintf(stderr, "--test_ticket_62: burn_drive_info_forget() returns %d\n",ret);
|
||||||
|
fprintf(stderr, "--test_ticket_62: Will follow the better explored ways of finish-initialize\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
printf("--test_ticket_62: Looks good so far ...\n");
|
||||||
|
|
||||||
|
/* Load the drive tray and avoid a bug in libburn burn_drive_grab() */
|
||||||
|
/* Some systems produce a false status if tray was unloaded */
|
||||||
|
/* Therefore the first grab is just for loading */
|
||||||
|
ret= burn_drive_grab(drive_list[*driveno].drive, 1);
|
||||||
|
if (ret != 1)
|
||||||
|
return 0;
|
||||||
|
burn_drive_release(drive_list[*driveno].drive, 0);
|
||||||
|
/* now grab for real */
|
||||||
|
ret= burn_drive_grab(drive_list[*driveno].drive, 1);
|
||||||
|
if (ret != 1)
|
||||||
|
return 0;
|
||||||
|
drive_is_grabbed = 1;
|
||||||
|
|
||||||
|
printf("--test_ticket_62: libburner_drop_unwanted_and_grab() successful\n");
|
||||||
|
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
/** This method demonstrates how to use libburn without knowing a persistent
|
||||||
|
drive address in advance. It has to make sure that after assessing the
|
||||||
|
list of available drives, all drives get closed again. Only then it is
|
||||||
|
sysadmin-acceptable to aquire the desired drive for a prolonged time.
|
||||||
|
This drive closing is enforced here by shutting down libburn and
|
||||||
|
restarting it again with the much more un-obtrusive approach to use
|
||||||
|
a persistent address and thus to only touch the one desired drive.
|
||||||
|
@param driveno the index number in libburn's drive list. This will get
|
||||||
|
set to 0 on success and will then be the drive index to
|
||||||
|
use in the further dourse of processing.
|
||||||
|
@return 1 success , <= 0 failure
|
||||||
|
*/
|
||||||
|
int libburner_aquire_by_driveno(int *driveno)
|
||||||
|
{
|
||||||
|
char adr[BURN_DRIVE_ADR_LEN];
|
||||||
|
int ret= 0, i;
|
||||||
|
|
||||||
|
printf("Beginning to scan for devices ...\n");
|
||||||
|
while (!burn_drive_scan(&drive_list, &drive_count)) ;
|
||||||
|
if (drive_count <= 0 && *driveno >= 0) {
|
||||||
|
printf("FAILED (no drives found)\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
printf("done\n");
|
||||||
|
|
||||||
|
/* Interactive programs may choose the drive number at this moment.
|
||||||
|
|
||||||
|
drive[0] to drive[drive_count-1] are struct burn_drive_info
|
||||||
|
as defined in libburn/libburn.h . This structure is part of API
|
||||||
|
and thus will strive for future compatibility on source level.
|
||||||
|
Have a look at the info offered.
|
||||||
|
Caution: do not take .location for drive address. Always use
|
||||||
|
burn_drive_get_adr() or you might become incompatible
|
||||||
|
in future.
|
||||||
|
Note: bugs with struct burn_drive_info - if any - will not be
|
||||||
|
easy to fix. Please report them but also strive for
|
||||||
|
workarounds on application level.
|
||||||
|
*/
|
||||||
|
printf("\nOverview of accessible drives (%d found) :\n",
|
||||||
|
drive_count);
|
||||||
|
printf("-----------------------------------------------------------------------------\n");
|
||||||
|
for (i = 0; i < drive_count; i++) {
|
||||||
|
if (burn_drive_get_adr(&(drive_list[i]), adr) <=0)
|
||||||
|
strcpy(adr, "-get_adr_failed-");
|
||||||
|
printf("%d --drive '%s' : '%s' '%s'\n",
|
||||||
|
i,adr,drive_list[i].vendor,drive_list[i].product);
|
||||||
|
}
|
||||||
|
printf("-----------------------------------------------------------------------------\n\n");
|
||||||
|
|
||||||
|
if (*driveno < 0) {
|
||||||
|
printf("Pseudo-drive \"-\" given : bus scanning done.\n");
|
||||||
|
return 2; /* only return 1 will cause a burn */
|
||||||
|
}
|
||||||
|
|
||||||
|
/* We already made our choice via command line. (default is 0) */
|
||||||
|
if (drive_count <= *driveno || *driveno < 0) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Found only %d drives. Number %d not available.\n",
|
||||||
|
drive_count, *driveno);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* Now save yourself from sysadmins' revenge */
|
||||||
|
|
||||||
|
/* If drive_count == 1 this would be not really necessary, though.
|
||||||
|
You could now call burn_drive_grab() and avoid libburn restart.
|
||||||
|
We don't try to be smart here and follow the API's strong urge. */
|
||||||
|
|
||||||
|
if (test_ticket_62) { /* a new strong urge emerging : */
|
||||||
|
ret = libburner_drop_unwanted_and_grab(driveno);
|
||||||
|
if (ret == 1)
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (burn_drive_get_adr(&(drive_list[*driveno]), adr) <=0) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"Cannot inquire persistent drive address of drive number %d\n",
|
||||||
|
*driveno);
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
printf("Detected '%s' as persistent address of drive number %d\n",
|
||||||
|
adr,*driveno);
|
||||||
|
|
||||||
|
/* In cdrskin this causes a delayed sigsegv. I understand we risk only
|
||||||
|
a small memory leak by not doing:
|
||||||
|
|
||||||
|
burn_drive_info_free(drive_list);
|
||||||
|
*/
|
||||||
|
burn_finish();
|
||||||
|
printf(
|
||||||
|
"Re-Initializing library to release any unintended drives ...\n");
|
||||||
|
if (burn_initialize())
|
||||||
|
printf("done\n");
|
||||||
|
else {
|
||||||
|
printf("FAILED\n");
|
||||||
|
fprintf(stderr,"\nFailed to re-initialize libburn.\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
ret = libburner_aquire_by_adr(adr);
|
||||||
|
if (ret > 0)
|
||||||
|
*driveno = 0;
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/** Makes a previously used CD-RW ready for thorough re-usal.
|
||||||
|
|
||||||
|
To our knowledge it is hardly possible to abort an ongoing blank operation
|
||||||
|
because after start it is entirely handled by the drive.
|
||||||
|
So expect a blank run to survive the end of the blanking process and be
|
||||||
|
patient for the usual timespan of a normal blank run. Only after that
|
||||||
|
time has surely elapsed, only then you should start any rescue attempts
|
||||||
|
with the drive. If necessary at all.
|
||||||
|
*/
|
||||||
|
int libburner_blank_disc(struct burn_drive *drive, int blank_fast)
|
||||||
|
{
|
||||||
|
enum burn_disc_status disc_state;
|
||||||
|
struct burn_progress progress;
|
||||||
|
|
||||||
|
while (burn_drive_get_status(drive, NULL))
|
||||||
|
usleep(1001);
|
||||||
|
|
||||||
|
while ((disc_state = burn_disc_get_status(drive)) == BURN_DISC_UNREADY)
|
||||||
|
usleep(1001);
|
||||||
|
printf(
|
||||||
|
"Drive media status: %d (see libburn/libburn.h BURN_DISC_*)\n",
|
||||||
|
disc_state);
|
||||||
|
if (disc_state == BURN_DISC_BLANK) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"IDLE: Blank CD media detected. Will leave it untouched\n");
|
||||||
|
return 2;
|
||||||
|
} else if (disc_state == BURN_DISC_FULL ||
|
||||||
|
disc_state == BURN_DISC_APPENDABLE) {
|
||||||
|
; /* this is what libburn is willing to blank */
|
||||||
|
} else if (disc_state == BURN_DISC_EMPTY) {
|
||||||
|
fprintf(stderr,"FATAL: No media detected in drive\n");
|
||||||
|
return 0;
|
||||||
|
} else {
|
||||||
|
fprintf(stderr,
|
||||||
|
"FATAL: Cannot recognize drive and media state\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
if(!burn_disc_erasable(drive)) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"FATAL : Media is not of erasable type\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
printf(
|
||||||
|
"Beginning to %s-blank CD media.\n", (blank_fast?"fast":"full"));
|
||||||
|
printf(
|
||||||
|
"Expect some garbage sector numbers and some zeros at first.\n");
|
||||||
|
burn_disc_erase(drive, blank_fast);
|
||||||
|
while (burn_drive_get_status(drive, &progress)) {
|
||||||
|
printf("Blanking sector %d\n", progress.sector);
|
||||||
|
sleep(1);
|
||||||
|
}
|
||||||
|
printf("Done\n");
|
||||||
|
return 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/** This gesture is necessary to get the drive info after blanking */
|
||||||
|
int libburner_regrab(struct burn_drive *drive) {
|
||||||
|
int ret;
|
||||||
|
|
||||||
|
printf("Releasing and regrabbing drive ...\n");
|
||||||
|
if (drive_is_grabbed)
|
||||||
|
burn_drive_release(drive, 0);
|
||||||
|
drive_is_grabbed = 0;
|
||||||
|
ret = burn_drive_grab(drive, 0);
|
||||||
|
if (ret != 0) {
|
||||||
|
drive_is_grabbed = 1;
|
||||||
|
printf("done\n");
|
||||||
|
} else
|
||||||
|
printf("FAILED\n");
|
||||||
|
return !!ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/** Brings the preformatted image (ISO 9660, afio, ext2, whatever) onto media.
|
||||||
|
|
||||||
|
To make sure your image is fully readable on any Linux machine, this
|
||||||
|
function adds 300 kB of padding to the track.
|
||||||
|
|
||||||
|
Without a signal handler it is quite dangerous to abort the process
|
||||||
|
while this function is active. See cdrskin/cdrskin.c and its usage
|
||||||
|
of cdrskin/cleanup.[ch] for an example of application provided
|
||||||
|
abort handling. It must cope with 2 of 3 threads reporting for
|
||||||
|
being handled.
|
||||||
|
|
||||||
|
Without signal handler have ready a command line
|
||||||
|
cdrecord dev=... -reset
|
||||||
|
with a dev= previously inquired by cdrecord [dev=ATA] -scanbus
|
||||||
|
in order to get your drive out of shock state after raw abort.
|
||||||
|
Thanks to Joerg Schilling for helping out unquestioned. :)
|
||||||
|
|
||||||
|
In general, libburn is less prone to system problems than cdrecord,
|
||||||
|
i believe. But cdrecord had long years of time to complete itself.
|
||||||
|
We are still practicing. Help us with that. :))
|
||||||
|
*/
|
||||||
|
int libburner_payload(struct burn_drive *drive, const char *source_adr,
|
||||||
|
off_t size)
|
||||||
|
{
|
||||||
|
struct burn_source *data_src;
|
||||||
|
struct burn_disc *target_disc;
|
||||||
|
struct burn_session *session;
|
||||||
|
struct burn_write_opts *burn_options;
|
||||||
|
enum burn_disc_status disc_state;
|
||||||
|
struct burn_track *track;
|
||||||
|
struct burn_progress progress;
|
||||||
|
time_t start_time;
|
||||||
|
int last_sector = 0;
|
||||||
|
|
||||||
|
target_disc = burn_disc_create();
|
||||||
|
session = burn_session_create();
|
||||||
|
burn_disc_add_session(target_disc, session, BURN_POS_END);
|
||||||
|
track = burn_track_create();
|
||||||
|
|
||||||
|
/* a padding of 300 kB is helpful to avoid the read-ahead bug */
|
||||||
|
burn_track_define_data(track, 0, 300*1024, 1, BURN_MODE1);
|
||||||
|
|
||||||
|
if (source_adr[0] == '-' && source_adr[1] == 0) {
|
||||||
|
data_src = burn_fd_source_new(0, -1, size);
|
||||||
|
printf("Note: using standard input as source with %.f bytes\n",
|
||||||
|
(double) size);
|
||||||
|
} else
|
||||||
|
data_src = burn_file_source_new(source_adr, NULL);
|
||||||
|
if (data_src == NULL) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"FATAL: Could not open data source '%s'.\n",source_adr);
|
||||||
|
if(errno!=0)
|
||||||
|
fprintf(stderr,"(Most recent system error: %s )\n",
|
||||||
|
strerror(errno));
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (burn_track_set_source(track, data_src) != BURN_SOURCE_OK) {
|
||||||
|
printf("FATAL: Cannot attach source object to track object\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
burn_session_add_track(session, track, BURN_POS_END);
|
||||||
|
burn_source_free(data_src);
|
||||||
|
|
||||||
|
while (burn_drive_get_status(drive, NULL))
|
||||||
|
usleep(1001);
|
||||||
|
|
||||||
|
/* Evaluate drive and media */
|
||||||
|
while ((disc_state = burn_disc_get_status(drive)) == BURN_DISC_UNREADY)
|
||||||
|
usleep(1001);
|
||||||
|
if (disc_state != BURN_DISC_BLANK) {
|
||||||
|
if (disc_state == BURN_DISC_FULL ||
|
||||||
|
disc_state == BURN_DISC_APPENDABLE) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"FATAL: Media with data detected. Need blank media.\n");
|
||||||
|
if (burn_disc_erasable(drive))
|
||||||
|
fprintf(stderr, "HINT: Try --blank_fast\n\n");
|
||||||
|
} else if (disc_state == BURN_DISC_EMPTY)
|
||||||
|
fprintf(stderr,"FATAL: No media detected in drive\n");
|
||||||
|
else
|
||||||
|
fprintf(stderr,
|
||||||
|
"FATAL: Cannot recognize drive and media state\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
burn_options = burn_write_opts_new(drive);
|
||||||
|
burn_write_opts_set_perform_opc(burn_options, 0);
|
||||||
|
|
||||||
|
#ifdef Libburner_raw_mode_which_i_do_not_likE
|
||||||
|
/* This yields higher CD capacity but hampers my IDE controller
|
||||||
|
with burning on one drive and reading on another simultaneously.
|
||||||
|
My burner does not obey the order --try_to_simulate in this mode.
|
||||||
|
*/
|
||||||
|
burn_write_opts_set_write_type(burn_options,
|
||||||
|
BURN_WRITE_RAW, BURN_BLOCK_RAW96R);
|
||||||
|
#else
|
||||||
|
|
||||||
|
/* This is by what cdrskin competes with cdrecord -sao which
|
||||||
|
i understand is the mode preferrably advised by Joerg Schilling */
|
||||||
|
burn_write_opts_set_write_type(burn_options,
|
||||||
|
BURN_WRITE_SAO, BURN_BLOCK_SAO);
|
||||||
|
|
||||||
|
#endif
|
||||||
|
if(simulate_burn)
|
||||||
|
printf("\n*** Will TRY to SIMULATE burning ***\n\n");
|
||||||
|
burn_write_opts_set_simulate(burn_options, simulate_burn);
|
||||||
|
burn_structure_print_disc(target_disc);
|
||||||
|
burn_drive_set_speed(drive, 0, 0);
|
||||||
|
burn_write_opts_set_underrun_proof(burn_options, 1);
|
||||||
|
|
||||||
|
printf("Burning starts. With e.g. 4x media expect up to a minute of zero progress.\n");
|
||||||
|
start_time = time(0);
|
||||||
|
burn_disc_write(burn_options, target_disc);
|
||||||
|
|
||||||
|
burn_write_opts_free(burn_options);
|
||||||
|
while (burn_drive_get_status(drive, NULL) == BURN_DRIVE_SPAWNING) ;
|
||||||
|
while (burn_drive_get_status(drive, &progress)) {
|
||||||
|
if( progress.sectors <= 0 || progress.sector == last_sector)
|
||||||
|
printf(
|
||||||
|
"Thank you for being patient since %d seconds.\n",
|
||||||
|
(int) (time(0) - start_time));
|
||||||
|
else
|
||||||
|
printf("Burning sector %d of %d\n",
|
||||||
|
progress.sector, progress.sectors);
|
||||||
|
last_sector = progress.sector;
|
||||||
|
sleep(1);
|
||||||
|
}
|
||||||
|
printf("\n");
|
||||||
|
burn_track_free(track);
|
||||||
|
burn_session_free(session);
|
||||||
|
burn_disc_free(target_disc);
|
||||||
|
if(simulate_burn)
|
||||||
|
printf("\n*** Did TRY to SIMULATE burning ***\n\n");
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/** Converts command line arguments into a few program parameters.
|
||||||
|
drive_adr[] must provide at least BURN_DRIVE_ADR_LEN bytes.
|
||||||
|
source_adr[] must provide at least 4096 bytes.
|
||||||
|
*/
|
||||||
|
int libburner_setup(int argc, char **argv, char drive_adr[], int *driveno,
|
||||||
|
int *do_blank, char source_adr[], off_t *size)
|
||||||
|
{
|
||||||
|
int i, insuffient_parameters = 0;
|
||||||
|
int print_help = 0;
|
||||||
|
|
||||||
|
drive_adr[0] = 0;
|
||||||
|
*driveno = 0;
|
||||||
|
*do_blank = 0;
|
||||||
|
source_adr[0] = 0;
|
||||||
|
*size = 650*1024*1024;
|
||||||
|
|
||||||
|
for (i = 1; i < argc; ++i) {
|
||||||
|
if (!strcmp(argv[i], "--blank_fast")) {
|
||||||
|
*do_blank = 1;
|
||||||
|
|
||||||
|
} else if (!strcmp(argv[i], "--blank_full")) {
|
||||||
|
*do_blank = 2;
|
||||||
|
|
||||||
|
} else if (!strcmp(argv[i], "--burn_for_real")) {
|
||||||
|
simulate_burn = 0;
|
||||||
|
|
||||||
|
} else if (!strcmp(argv[i], "--drive")) {
|
||||||
|
++i;
|
||||||
|
if (i >= argc) {
|
||||||
|
fprintf(stderr,"--drive requires an argument\n");
|
||||||
|
return 1;
|
||||||
|
} else if (strcmp(argv[i], "-") == 0) {
|
||||||
|
drive_adr[0] = 0;
|
||||||
|
*driveno = -1;
|
||||||
|
} else if (isdigit(argv[i][0])) {
|
||||||
|
drive_adr[0] = 0;
|
||||||
|
*driveno = atoi(argv[i]);
|
||||||
|
} else {
|
||||||
|
if(strlen(argv[i]) >= BURN_DRIVE_ADR_LEN) {
|
||||||
|
fprintf(stderr,"--drive address too long (max. %d)\n",
|
||||||
|
BURN_DRIVE_ADR_LEN-1);
|
||||||
|
return 2;
|
||||||
|
}
|
||||||
|
strcpy(drive_adr, argv[i]);
|
||||||
|
}
|
||||||
|
} else if (!strcmp(argv[i], "--stdin_size")) {
|
||||||
|
++i;
|
||||||
|
if (i >= argc) {
|
||||||
|
fprintf(stderr,"--stdin_size requires an argument\n");
|
||||||
|
return 3;
|
||||||
|
} else
|
||||||
|
*size = atoi(argv[i]);
|
||||||
|
if (*size < 600*1024) /* seems to be minimum readable track size */
|
||||||
|
*size = 600*1024;
|
||||||
|
} else if (!strcmp(argv[i], "--try_to_simulate")) {
|
||||||
|
simulate_burn = 1;
|
||||||
|
|
||||||
|
} else if (!strcmp(argv[i], "--verbose")) {
|
||||||
|
++i;
|
||||||
|
if (i >= argc) {
|
||||||
|
fprintf(stderr,"--verbose requires an argument\n");
|
||||||
|
return 4;
|
||||||
|
} else
|
||||||
|
burn_set_verbosity(atoi(argv[i]));
|
||||||
|
} else if (!strcmp(argv[i], "--help")) {
|
||||||
|
print_help = 1;
|
||||||
|
|
||||||
|
} else if (!strcmp(argv[i], "--test_ticket_62")) {
|
||||||
|
test_ticket_62= 1;
|
||||||
|
|
||||||
|
} else {
|
||||||
|
if(strlen(argv[i]) >= 4096) {
|
||||||
|
fprintf(stderr, "Source address too long (max. %d)\n", 4096-1);
|
||||||
|
return 5;
|
||||||
|
}
|
||||||
|
strcpy(source_adr, argv[i]);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
insuffient_parameters = 1;
|
||||||
|
if (*driveno < 0)
|
||||||
|
insuffient_parameters = 0;
|
||||||
|
if (source_adr[0] != 0)
|
||||||
|
insuffient_parameters = 0;
|
||||||
|
if (*do_blank)
|
||||||
|
insuffient_parameters = 0;
|
||||||
|
if (print_help || insuffient_parameters ) {
|
||||||
|
printf("Usage: %s\n", argv[0]);
|
||||||
|
printf(" [--drive <address>|<driveno>|\"-\"]\n");
|
||||||
|
printf(" [--verbose <level>] [--blank_fast|--blank_full]\n");
|
||||||
|
printf(" [--burn_for_real|--try_to_simulate] [--stdin_size <bytes>]\n");
|
||||||
|
printf(" [<imagefile>|\"-\"]\n");
|
||||||
|
printf(" [--test_ticket_62]\n");
|
||||||
|
printf("--test_ticket_62 enables a novel way to drop unwanted drives.\n");
|
||||||
|
printf("Examples\n");
|
||||||
|
printf("A bus scan (needs rw-permissions to see a drive):\n");
|
||||||
|
printf(" %s --drive -\n",argv[0]);
|
||||||
|
printf("Burn a file to drive chosen by number:\n");
|
||||||
|
printf(" %s --drive 0 --burn_for_real my_image_file\n",
|
||||||
|
argv[0]);
|
||||||
|
printf("Burn a file to drive chosen by persistent address:\n");
|
||||||
|
printf(" %s --drive /dev/hdc --burn_for_real my_image_file\n", argv[0]);
|
||||||
|
printf("Blank a used CD-RW (is combinable with burning in one run):\n");
|
||||||
|
printf(" %s --drive 0 --blank_fast\n",argv[0]);
|
||||||
|
printf("Burn a compressed afio archive on-the-fly, pad up to 700 MB:\n");
|
||||||
|
printf(" ( cd my_directory ; find . -print | afio -oZ - ) | \\\n");
|
||||||
|
printf(" %s --drive /dev/hdc --burn_for_real --stdin_size 734003200 -\n", argv[0]);
|
||||||
|
printf("To be read from *not mounted* CD via:\n");
|
||||||
|
printf(" afio -tvZ /dev/hdc\n");
|
||||||
|
printf("Program tar would need a clean EOF which our padded CD cannot deliver.\n");
|
||||||
|
if (insuffient_parameters)
|
||||||
|
return 6;
|
||||||
|
}
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
int main(int argc, char **argv)
|
||||||
|
{
|
||||||
|
int driveno, ret, do_blank;
|
||||||
|
char source_adr[4096], drive_adr[BURN_DRIVE_ADR_LEN];
|
||||||
|
off_t stdin_size;
|
||||||
|
|
||||||
|
ret = libburner_setup(argc, argv, drive_adr, &driveno, &do_blank,
|
||||||
|
source_adr, &stdin_size);
|
||||||
|
if (ret)
|
||||||
|
exit(ret);
|
||||||
|
|
||||||
|
printf("Initializing library ...\n");
|
||||||
|
if (burn_initialize())
|
||||||
|
printf("done\n");
|
||||||
|
else {
|
||||||
|
printf("FAILED\n");
|
||||||
|
fprintf(stderr,"\nFATAL: Failed to initialize libburn.\n");
|
||||||
|
exit(33);
|
||||||
|
}
|
||||||
|
|
||||||
|
/** Note: driveno might change its value in this call */
|
||||||
|
ret = libburner_aquire_drive(drive_adr, &driveno);
|
||||||
|
if (ret<=0) {
|
||||||
|
fprintf(stderr,"\nFATAL: Failed to aquire drive.\n");
|
||||||
|
{ ret = 34; goto finish_libburn; }
|
||||||
|
}
|
||||||
|
if (ret == 2)
|
||||||
|
{ ret = 0; goto release_drive; }
|
||||||
|
if (do_blank) {
|
||||||
|
ret = libburner_blank_disc(drive_list[driveno].drive,
|
||||||
|
do_blank == 1);
|
||||||
|
if (ret<=0)
|
||||||
|
{ ret = 36; goto release_drive; }
|
||||||
|
if (ret != 2 && source_adr[0] != 0)
|
||||||
|
ret = libburner_regrab(drive_list[driveno].drive);
|
||||||
|
if (ret<=0) {
|
||||||
|
fprintf(stderr,
|
||||||
|
"FATAL: Cannot release and grab again drive after blanking\n");
|
||||||
|
{ ret = 37; goto finish_libburn; }
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (source_adr[0] != 0) {
|
||||||
|
ret = libburner_payload(drive_list[driveno].drive, source_adr,
|
||||||
|
stdin_size);
|
||||||
|
if (ret<=0)
|
||||||
|
{ ret = 38; goto release_drive; }
|
||||||
|
}
|
||||||
|
ret = 0;
|
||||||
|
release_drive:;
|
||||||
|
if (drive_is_grabbed)
|
||||||
|
burn_drive_release(drive_list[driveno].drive, 0);
|
||||||
|
|
||||||
|
finish_libburn:;
|
||||||
|
/* This app does not bother to know about exact scan state.
|
||||||
|
Better to accept a memory leak here. We are done anyway. */
|
||||||
|
/* burn_drive_info_free(drive_list); */
|
||||||
|
|
||||||
|
burn_finish();
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
/* License and copyright aspects:
|
||||||
|
|
||||||
|
This all is provided under GPL.
|
||||||
|
Read. Try. Think. Play. Write yourself some code. Be free of my copyright.
|
||||||
|
|
||||||
|
Be also invited to study the code of cdrskin/cdrskin.c et al.
|
||||||
|
|
||||||
|
|
||||||
|
Clarification in my name and in the name of Mario Danic, copyright holder
|
||||||
|
on toplevel of libburn. To be fully in effect after the remaining other
|
||||||
|
copyrighted code has been replaced by ours and by copyright-free contributions
|
||||||
|
of our friends:
|
||||||
|
|
||||||
|
We, the copyright holders, agree on the interpretation that
|
||||||
|
dynamical linking of our libraries constitutes "use of" and
|
||||||
|
not "derivation from" our work in the sense of GPL, provided
|
||||||
|
those libraries are compiled from our unaltered code.
|
||||||
|
|
||||||
|
Thus you may link our libraries dynamically with applications
|
||||||
|
which are not under GPL. You may distribute our libraries and
|
||||||
|
application tools in binary form, if you fulfill the usual
|
||||||
|
condition of GPL to offer a copy of the source code -altered
|
||||||
|
or unaltered- under GPL.
|
||||||
|
|
||||||
|
We ask you politely to use our work in open source spirit
|
||||||
|
and with the due reference to the entire open source community.
|
||||||
|
|
||||||
|
If there should really arise the case where above clarification
|
||||||
|
does not suffice to fulfill a clear and neat request in open source
|
||||||
|
spirit that would otherwise be declined for mere formal reasons,
|
||||||
|
only in that case we will duely consider to issue a special license
|
||||||
|
covering only that special case.
|
||||||
|
It is the open source idea of responsible freedom which will be
|
||||||
|
decisive and you will have to prove that you exhausted all own
|
||||||
|
means to qualify for GPL.
|
||||||
|
|
||||||
|
For now we are firmly committed to maintain one single license: GPL.
|
||||||
|
|
||||||
|
History:
|
||||||
|
libburner is a compilation of my own contributions to test/burniso.c and
|
||||||
|
fresh code which replaced the remaining parts under copyright of
|
||||||
|
Derek Foreman.
|
||||||
|
My respect and my thanks to Derek for providing me a start back in 2005.
|
||||||
|
|
||||||
|
*/
|
||||||
|
|
||||||
Loading…
Reference in New Issue
Block a user