libburner.c File Reference

#include "../libburn/libburn.h"
#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>
#include <sys/stat.h>
#include <fcntl.h>

Include dependency graph for libburner.c:

Go to the source code of this file.

Functions
int	libburner_aquire_by_adr (char *drive_adr)
	If the persistent drive address is known, then this approach is much more un-obtrusive to the systemwide livestock of drives.
int	libburner_aquire_by_driveno (int *driveno)
	This method demonstrates how to use libburn without knowing a persistent drive address in advance.
int	libburner_aquire_drive (char *drive_adr, int *driveno)
	You need to aquire a drive before burning.
int	libburner_blank_disc (struct burn_drive *drive, int blank_fast)
	Makes a previously used CD-RW ready for thorough re-usal.
int	libburner_format (struct burn_drive *drive)
	Formats unformatted DVD-RW to profile 0013h "Restricted Overwrite" which needs no blanking for re-use but is not capable of multi-session.
int	libburner_payload (struct burn_drive *drive, char source_adr[][4096], int source_adr_count, int multi, int simulate_burn, int all_tracks_type)
	Brings preformatted track images (ISO 9660, audio, .
int	libburner_setup (int argc, char **argv)
	Converts command line arguments into above setup parameters.
int	main (int argc, char **argv)
Variables
static struct burn_drive_info *	drive_list
	Overview.
static unsigned int	drive_count
	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.
static int	drive_is_grabbed = 0
	This variable indicates wether the drive is grabbed and must be finally released.
static int	current_profile = -1
	A number and a text describing the type of media in aquired drive.
static char	current_profile_name [80] = {""}
static char	drive_adr [BURN_DRIVE_ADR_LEN] = {""}
	The setup parameters of libburner.
static int	driveno = 0
static int	do_blank = 0
static char	source_adr [99][4096]
static int	source_adr_count = 0
static int	do_multi = 0
static int	simulate_burn = 0
static int	all_tracks_type = BURN_MODE1

---

Function Documentation

int libburner_aquire_by_adr

(

char *

drive_adr

)

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.

Definition at line 123 of file libburner.c.

References BURN_DRIVE_ADR_LEN, burn_drive_convert_fs_adr(), burn_drive_scan_and_grab(), and drive_is_grabbed.

Referenced by libburner_aquire_drive().

{
    int ret;
    char libburn_drive_adr[BURN_DRIVE_ADR_LEN];

    /* Some not-so-harmless drive addresses get blocked in this demo */
    if (strncmp(drive_adr, "stdio:/dev/fd/", 14) == 0 ||
        strcmp(drive_adr, "stdio:-") == 0) {
        fprintf(stderr, "Will not work with pseudo-drive '%s'\n",
            drive_adr);
        return 0;
    }

    /* This tries to resolve links or alternative device files */
    ret = burn_drive_convert_fs_adr(drive_adr, libburn_drive_adr);  
    if (ret<=0) {
        fprintf(stderr, "Address does not lead to a CD burner: '%s'\n",
                 drive_adr);
        return 0;
    }
    fprintf(stderr,"Aquiring drive '%s' ...\n", libburn_drive_adr);
    ret = burn_drive_scan_and_grab(&drive_list, libburn_drive_adr, 1);
    if (ret <= 0) {
        fprintf(stderr,"FAILURE with persistent drive address  '%s'\n",
            libburn_drive_adr);
    } else {
        fprintf(stderr,"Done\n");
        drive_is_grabbed = 1;
    }
    return ret;
}

int libburner_aquire_by_driveno

(

int *

driveno

)

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 unwanted drives get closed again. As long as they are open, no other libburn instance can see them. This is an intended locking feature. The application is responsible for giving up the locks by either burn_drive_release() (only after burn_drive_grab() !), burn_drive_info_forget(), burn_drive_info_free(), or burn_finish().

Parameters:

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.

Returns:

1 success , <= 0 failure

Definition at line 168 of file libburner.c.

References BURN_DRIVE_ADR_LEN, burn_drive_get_adr(), burn_drive_grab(), burn_drive_info_forget(), burn_drive_scan(), burn_drive_info::drive, drive_count, drive_is_grabbed, burn_drive_info::product, and burn_drive_info::vendor.

Referenced by libburner_aquire_drive().

{
    char adr[BURN_DRIVE_ADR_LEN];
    int ret, i;

    printf("Beginning to scan for devices ...\n");
    while (!burn_drive_scan(&drive_list, &drive_count))
        usleep(100002);
    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");

    /*
    On multi-drive systems save yourself from sysadmins' revenge.

    Be aware that you hold reserved all available drives at this point.
    So either make your choice quick enough not to annoy other system
    users, or set free the drives for a while.

    The tested way of setting free all drives is to shutdown the library
    and to restart when the choice has been made. The list of selectable
    drives should also hold persistent drive addresses as obtained
    above by burn_drive_get_adr(). By such an address one may use
    burn_drive_scan_and_grab() to finally aquire exactly one drive.

    A not yet tested shortcut should be to call burn_drive_info_free()
    and to call either burn_drive_scan() or burn_drive_scan_and_grab()
    before accessing any drives again.

    In both cases you have to be aware that the desired drive might get
    aquired in the meantime by another user resp. libburn process.
    */

    /* We already made our choice via command line. (default is 0)
       So we just have to keep our desired drive and drop all others.
       No other libburn instance will have a chance to steal our drive.
     */
    if (*driveno < 0) {
        printf("Pseudo-drive \"-\" given : bus scanning done.\n");
        return 2; /* the program will end after this */
    }
    if (drive_count <= *driveno) {
        fprintf(stderr,
            "Found only %d drives. Number %d not available.\n",
            drive_count, *driveno);
        return 0; /* the program will end after this */
    }

    /* Drop all drives which we do not want to use */
    for (i = 0; i < drive_count; i++) {
        if (i == *driveno) /* the one drive we want to keep */
    continue;
        ret = burn_drive_info_forget(&(drive_list[i]),0);
        if (ret != 1)
            fprintf(stderr, "Cannot drop drive %d. Please report \"ret=%d\" to libburn-hackers@pykix.org\n",
                i, ret);
        else
            printf("Dropped unwanted drive %d\n",i);
    }
    /* Make the one we want ready for blanking or burning */
    ret= burn_drive_grab(drive_list[*driveno].drive, 1);
    if (ret != 1)
        return 0;
    drive_is_grabbed = 1;
    return 1;
}

int libburner_aquire_drive	(	char *	drive_adr,
		int *	driveno
	)

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 because it only touches one drive. On modern Linux kernels, there should be no fatal disturbance of ongoing burns of other libburn instances with any of our approaches. We use open(O_EXCL) by default. On /dev/hdX it should cooperate with growisofs and some cdrecord variants. On /dev/sgN versus /dev/scdM expect it not to respect other programs.

Definition at line 101 of file libburner.c.

References burn_disc_get_profile(), current_profile, current_profile_name, burn_drive_info::drive, libburner_aquire_by_adr(), and libburner_aquire_by_driveno().

Referenced by main().

{
    int ret;

    if(drive_adr != NULL && drive_adr[0] != 0)
        ret = libburner_aquire_by_adr(drive_adr);
    else
        ret = libburner_aquire_by_driveno(driveno);
    if (ret <= 0)
        return ret;
    burn_disc_get_profile(drive_list[0].drive, &current_profile,
                 current_profile_name);
    if (current_profile_name[0])
        printf("Detected media type: %s\n", current_profile_name);
    return 1;
}

int libburner_blank_disc	(	struct burn_drive *	drive,
		int	blank_fast
	)

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 signal handling to wait the normal blanking timespan until it can allow the process to end. External kill -9 will not help the drive.

Definition at line 270 of file libburner.c.

References BURN_DISC_APPENDABLE, BURN_DISC_BLANK, BURN_DISC_EMPTY, burn_disc_erasable(), burn_disc_erase(), BURN_DISC_FULL, burn_disc_get_status(), burn_drive_get_status(), BURN_DRIVE_IDLE, current_profile, burn_progress::sector, and burn_progress::sectors.

Referenced by main().

{
    enum burn_disc_status disc_state;
    struct burn_progress p;
    double percent = 1.0;

    disc_state = burn_disc_get_status(drive);
    printf(
        "Drive media status:  %d  (see  libburn/libburn.h  BURN_DISC_*)\n",
        disc_state);
    if (current_profile == 0x13) {
        ; /* formatted DVD-RW will get blanked to sequential state */
    } else if (disc_state == BURN_DISC_BLANK) {
        fprintf(stderr,
          "IDLE: Blank media detected. Will leave it untouched\n");
        return 2;
    } else if (disc_state == BURN_DISC_FULL ||
           disc_state == BURN_DISC_APPENDABLE) {
        ; /* this is what libburner 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: Unsuitable 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 media.\n", (blank_fast?"fast":"full"));
    burn_disc_erase(drive, blank_fast);
    sleep(1);
    while (burn_drive_get_status(drive, &p) != BURN_DRIVE_IDLE) {
        if(p.sectors>0 && p.sector>=0) /* display 1 to 99 percent */
            percent = 1.0 + ((double) p.sector+1.0)
                     / ((double) p.sectors) * 98.0;
        printf("Blanking  ( %.1f%% done )\n", percent);
        sleep(1);
    }
    printf("Done\n");
    return 1;
}

int libburner_format

(

struct burn_drive *

drive

)

Formats unformatted DVD-RW to profile 0013h "Restricted Overwrite" which needs no blanking for re-use but is not capable of multi-session.

Expect a behavior similar to blanking with unusual noises from the drive.

Formats unformatted BD-RE to default size. This will allocate some reserve space, test for bad blocks and make the media ready for writing. Expect a very long run time.

Formats unformatted blank BD-R to hold a default amount of spare blocks for eventual mishaps during writing. If BD-R get written without being formatted, then they get no such reserve and will burn at full speed.

Definition at line 330 of file libburner.c.

References BURN_DISC_BLANK, burn_disc_format(), burn_disc_get_formats(), burn_disc_get_profile(), burn_disc_get_status(), burn_drive_get_status(), BURN_DRIVE_IDLE, BURN_FORMAT_IS_UNFORMATTED, current_profile, current_profile_name, burn_progress::sector, and burn_progress::sectors.

Referenced by main().

{
    struct burn_progress p;
    double percent = 1.0;
    int ret, status, num_formats, format_flag= 0;
    off_t size = 0;
    unsigned dummy;
    enum burn_disc_status disc_state;

    if (current_profile == 0x13) {
        fprintf(stderr, "IDLE: DVD-RW media is already formatted\n");
        return 2;
    } else if (current_profile == 0x41 || current_profile == 0x43) {
        disc_state = burn_disc_get_status(drive);
        if (disc_state != BURN_DISC_BLANK && current_profile == 0x41) {
            fprintf(stderr,
                "FATAL: BD-R is not blank. Cannot format.\n");
            return 0;
        }
        ret = burn_disc_get_formats(drive, &status, &size, &dummy,
                                &num_formats);
        if (ret > 0 && status != BURN_FORMAT_IS_UNFORMATTED) {
            fprintf(stderr,
                "IDLE: BD media is already formatted\n");
            return 2;
        }
        size = 0;           /* does not really matter */
        format_flag = 3<<1; /* format to default size, no quick */
    } else if (current_profile == 0x14) { /* sequential DVD-RW */
        size = 128 * 1024 * 1024;
        format_flag = 1; /* write initial 128 MiB */
    } else {
        fprintf(stderr, "FATAL: Can only format DVD-RW or BD\n");
        return 0;
    }

    printf("Beginning to format media.\n");
    burn_disc_format(drive, size, format_flag);

    sleep(1);
    while (burn_drive_get_status(drive, &p) != BURN_DRIVE_IDLE) {
        if(p.sectors>0 && p.sector>=0) /* display 1 to 99 percent */
            percent = 1.0 + ((double) p.sector+1.0)
                     / ((double) p.sectors) * 98.0;
        printf("Formatting  ( %.1f%% done )\n", percent);
        sleep(1);
    }
    burn_disc_get_profile(drive_list[0].drive, &current_profile,
                 current_profile_name);
    if (current_profile == 0x14 || current_profile == 0x13)
        printf("Media type now: %4.4xh  \"%s\"\n",
                 current_profile, current_profile_name);
    if (current_profile == 0x14) {
        fprintf(stderr,
          "FATAL: Failed to change media profile to desired value\n");
        return 0;
    }
    return 1;
}

int libburner_payload	(	struct burn_drive *	drive,
		char	source_adr[][4096],
		int	source_adr_count,
		int	multi,
		int	simulate_burn,
		int	all_tracks_type
	)

Brings preformatted track images (ISO 9660, audio, .

..) onto media. To make sure a data image is fully readable on any Linux machine, this function adds 300 kiB of padding to the (usualy single) track. Audio tracks get padded to complete their last sector. A fifo of 4 MB is installed between each track and its data source. Each of the 4 MB buffers gets allocated automatically as soon as a track begins to be processed and it gets freed as soon as the track is done. The fifos do not wait for buffer fill but writing starts immediately.

In case of external signals expect abort handling of an ongoing burn to last up to a minute. Wait the normal burning timespan before any kill -9.

For simplicity, this function allows memory leaks in case of failure. In apps which do not abort immediately, one should clean up better.

Definition at line 406 of file libburner.c.

References BURN_AUDIO, burn_disc_add_session(), BURN_DISC_APPENDABLE, BURN_DISC_BLANK, burn_disc_create(), BURN_DISC_EMPTY, burn_disc_erasable(), burn_disc_free(), BURN_DISC_FULL, burn_disc_get_status(), burn_disc_write(), burn_drive_get_status(), BURN_DRIVE_IDLE, burn_drive_set_speed(), BURN_DRIVE_SPAWNING, burn_fd_source_new(), burn_fifo_inquire_status(), burn_fifo_source_new(), BURN_MODE1, BURN_POS_END, BURN_REASONS_LEN, burn_session_add_track(), burn_session_create(), burn_session_free(), burn_source_free(), BURN_SOURCE_OK, burn_track_create(), burn_track_define_data(), burn_track_free(), burn_track_set_source(), BURN_WRITE_NONE, burn_write_opts_auto_write_type(), burn_write_opts_free(), burn_write_opts_new(), burn_write_opts_set_multi(), burn_write_opts_set_perform_opc(), burn_write_opts_set_simulate(), burn_write_opts_set_underrun_proof(), current_profile, burn_progress::sector, burn_progress::sectors, and burn_progress::track.

Referenced by main().

{
    struct burn_source *data_src, *fifo_src[99];
    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, *tracklist[99];
    struct burn_progress progress;
    time_t start_time;
    int last_sector = 0, padding = 0, trackno, unpredicted_size = 0, fd;
    int fifo_chunksize = 2352, fifo_chunks = 1783; /* ~ 4 MB fifo */
    off_t fixed_size;
    char *adr, reasons[BURN_REASONS_LEN];
    struct stat stbuf;

    if (all_tracks_type != BURN_AUDIO) {
        all_tracks_type = BURN_MODE1;
        /* a padding of 300 kiB helps to avoid the read-ahead bug */
        padding = 300*1024;
        fifo_chunksize = 2048;
        fifo_chunks = 2048; /* 4 MB fifo */
    }

    target_disc = burn_disc_create();
    session = burn_session_create();
    burn_disc_add_session(target_disc, session, BURN_POS_END);

    for (trackno = 0 ; trackno < source_adr_count; trackno++) {
      tracklist[trackno] = track = burn_track_create();
      burn_track_define_data(track, 0, padding, 1, all_tracks_type);

      /* Open file descriptor to source of track data */
      adr = source_adr[trackno];
      fixed_size = 0;
      if (adr[0] == '-' && adr[1] == 0) {
        fd = 0;
      } else {
        fd = open(adr, O_RDONLY);
        if (fd>=0)
            if (fstat(fd,&stbuf)!=-1)
                if((stbuf.st_mode&S_IFMT)==S_IFREG)
                    fixed_size = stbuf.st_size;
      }
      if (fixed_size==0)
        unpredicted_size = 1;

      /* Convert this filedescriptor into a burn_source object */
      data_src = NULL;
      if (fd>=0)
        data_src = burn_fd_source_new(fd, -1, fixed_size);
      if (data_src == NULL) {
        fprintf(stderr,
               "FATAL: Could not open data source '%s'.\n",adr);
        if(errno!=0)
            fprintf(stderr,"(Most recent system error: %s )\n",
                strerror(errno));
        return 0;
      }
      /* Install a fifo object on top of that data source object */
      fifo_src[trackno] = burn_fifo_source_new(data_src,
                    fifo_chunksize, fifo_chunks, 0);
      if (fifo_src[trackno] == NULL) {
        fprintf(stderr,
            "FATAL: Could not create fifo object of 4 MB\n");
        return 0;
      }

      /* Use the fifo object as data source for the track */
      if (burn_track_set_source(track, fifo_src[trackno])
                             != BURN_SOURCE_OK) {
        fprintf(stderr,
               "FATAL: Cannot attach source object to track object\n");
        return 0;
      }

      burn_session_add_track(session, track, BURN_POS_END);
      printf("Track %d : source is '%s'\n", trackno+1, adr);

      /* Give up local reference to the data burn_source object */
      burn_source_free(data_src);
      
        } /* trackno loop end */

    /* Evaluate drive and media */
    disc_state = burn_disc_get_status(drive);
    if (disc_state != BURN_DISC_BLANK &&
        disc_state != BURN_DISC_APPENDABLE) {
        if (disc_state == BURN_DISC_FULL) {
            fprintf(stderr, "FATAL: Closed media with data detected. Need blank or appendable 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 state of drive and media\n");
        return 0;
    }

    burn_options = burn_write_opts_new(drive);
    burn_write_opts_set_perform_opc(burn_options, 0);
    burn_write_opts_set_multi(burn_options, !!multi);
    if(simulate_burn)
        printf("\n*** Will TRY to SIMULATE burning ***\n\n");
    burn_write_opts_set_simulate(burn_options, simulate_burn);
    burn_drive_set_speed(drive, 0, 0);
    burn_write_opts_set_underrun_proof(burn_options, 1);
    if (burn_write_opts_auto_write_type(burn_options, target_disc,
                    reasons, 0) == BURN_WRITE_NONE) {
        fprintf(stderr, "FATAL: Failed to find a suitable write mode with this media.\n");
        fprintf(stderr, "Reasons given:\n%s\n", reasons);
        return 0;
    }

    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)
        usleep(100002);
    while (burn_drive_get_status(drive, &progress) != BURN_DRIVE_IDLE) {
        if (progress.sectors <= 0 ||
            (progress.sector >= progress.sectors - 1 &&
                 !unpredicted_size) ||
            (unpredicted_size && progress.sector == last_sector))
            printf(
                 "Thank you for being patient since %d seconds.",
                 (int) (time(0) - start_time));
        else if(unpredicted_size)
            printf("Track %d : sector %d", progress.track+1,
                progress.sector);
        else
            printf("Track %d : sector %d of %d",progress.track+1,
                progress.sector, progress.sectors);
        last_sector = progress.sector;
        if (progress.track >= 0 && progress.track < source_adr_count) {
            int size, free_bytes, ret;
            char *status_text;
    
            ret = burn_fifo_inquire_status(
                fifo_src[progress.track], &size, &free_bytes,
                &status_text);
            if (ret >= 0 ) 
                printf("  [fifo %s, %2d%% fill]", status_text,
                    (int) (100.0 - 100.0 *
                        ((double) free_bytes) /
                        (double) size));
        } 
        printf("\n");
        sleep(1);
    }
    printf("\n");

    for (trackno = 0 ; trackno < source_adr_count; trackno++) {
        burn_source_free(fifo_src[trackno]);
        burn_track_free(tracklist[trackno]);
    }
    burn_session_free(session);
    burn_disc_free(target_disc);
    if (multi && current_profile != 0x1a && current_profile != 0x13 &&
        current_profile != 0x12 && current_profile != 0x43) 
            /* not with DVD+RW, formatted DVD-RW, DVD-RAM, BD-RE */
        printf("NOTE: Media left appendable.\n");
    if (simulate_burn)
        printf("\n*** Did TRY to SIMULATE burning ***\n\n");
    return 1;
}

int libburner_setup	(	int	argc,
		char **	argv
	)

Converts command line arguments into above setup parameters.

Definition at line 592 of file libburner.c.

References all_tracks_type, BURN_AUDIO, BURN_DRIVE_ADR_LEN, do_blank, do_multi, drive_adr, driveno, simulate_burn, source_adr, and source_adr_count.

Referenced by main().

{
    int i, insuffient_parameters = 0, print_help = 0;

    for (i = 1; i < argc; ++i) {
        if (!strcmp(argv[i], "--audio")) {
            all_tracks_type = BURN_AUDIO;

        } else 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], "--format_overwrite")) ||
           (!strcmp(argv[i], "--format"))) {
            do_blank = 101;

        } else if (!strcmp(argv[i], "--multi")) {
        do_multi = 1;

    } else if (!strcmp(argv[i], "--stdin_size")) { /* obsoleted */
        i++;

        } else if (!strcmp(argv[i], "--try_to_simulate")) {
            simulate_burn = 1;

        } else if (!strcmp(argv[i], "--help")) {
            print_help = 1;

        } else if (!strncmp(argv[i], "--",2)) {
            fprintf(stderr, "Unidentified option: %s\n", argv[i]);
            return 7;
        } else {
            if(strlen(argv[i]) >= 4096) {
                fprintf(stderr, "Source address too long (max. %d)\n", 4096-1);
                return 5;
            }
            if(source_adr_count >= 99) {
                fprintf(stderr, "Too many tracks (max. 99)\n");
                return 6;
            }
            strcpy(source_adr[source_adr_count], argv[i]);
            source_adr_count++;
        }
    }
    insuffient_parameters = 1;
    if (driveno < 0)
        insuffient_parameters = 0;
    if (source_adr_count > 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>|\"-\"]  [--audio]\n");
        printf("       [--blank_fast|--blank_full|--format]  [--try_to_simulate]\n");
        printf("       [--multi]  [<one or more imagefiles>|\"-\"]\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, leave appendable:\n");
        printf("  %s --drive 0 --multi my_image_file\n", argv[0]);
        printf("Burn a file to drive chosen by persistent address, close:\n");
        printf("  %s --drive /dev/hdc my_image_file\n", argv[0]);
        printf("Blank a used CD-RW (is combinable with burning in one run):\n");
        printf("  %s --drive /dev/hdc --blank_fast\n",argv[0]);
        printf("Blank a used DVD-RW (is combinable with burning in one run):\n");
        printf("  %s --drive /dev/hdc --blank_full\n",argv[0]);
        printf("Format a DVD-RW, BD-RE or BD-R:\n");
        printf("  %s --drive /dev/hdc --format\n", argv[0]);
        printf("Burn two audio tracks (to CD only):\n");
        printf("  lame --decode -t /path/to/track1.mp3 track1.cd\n");
        printf("  test/dewav /path/to/track2.wav -o track2.cd\n");
        printf("  %s --drive /dev/hdc --audio track1.cd track2.cd\n", argv[0]);
        printf("Burn a compressed afio archive on-the-fly:\n");
        printf("  ( cd my_directory ; find . -print | afio -oZ - ) | \\\n");
        printf("  %s --drive /dev/hdc -\n", argv[0]);
        printf("To be read from *not mounted* media via: afio -tvZ /dev/hdc\n");
        if (insuffient_parameters)
            return 6;
    }
    return 0;
}

int main	(	int	argc,
		char **	argv
	)

Note: driveno might change its value in this call

Definition at line 700 of file libburner.c.

References all_tracks_type, burn_drive_release(), burn_finish(), burn_initialize(), burn_msgs_set_severities(), burn_set_signal_handling(), do_blank, do_multi, drive_adr, drive_is_grabbed, driveno, libburner_aquire_drive(), libburner_blank_disc(), libburner_format(), libburner_payload(), libburner_setup(), simulate_burn, source_adr, and source_adr_count.

{
    int ret;

    ret = libburner_setup(argc, argv);
    if (ret)
        exit(ret);

    printf("Initializing libburnia-project.org ...\n");
    if (burn_initialize())
        printf("Done\n");
    else {
        printf("FAILED\n");
        fprintf(stderr,"\nFATAL: Failed to initialize.\n");
        exit(33);
    }

    /* Print messages of severity SORRY or more directly to stderr */
    burn_msgs_set_severities("NEVER", "SORRY", "libburner : ");

    /* Activate the default signal handler which eventually will try to
       properly shutdown drive and library on aborting events. */
    burn_set_signal_handling("libburner : ", NULL, 0);

    /** 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) {
        if (do_blank > 100)
            ret = libburner_format(drive_list[driveno].drive);
        else
            ret = libburner_blank_disc(drive_list[driveno].drive,
                            do_blank == 1);
        if (ret<=0)
            { ret = 36; goto release_drive; }
    }
    if (source_adr_count > 0) {
        ret = libburner_payload(drive_list[driveno].drive,
                source_adr, source_adr_count,
                do_multi, simulate_burn, all_tracks_type);
        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();
    exit(ret);
}

---

Variable Documentation

int all_tracks_type = BURN_MODE1 [static]

Definition at line 587 of file libburner.c.

Referenced by libburner_setup(), and main().

int current_profile = -1 [static]

A number and a text describing the type of media in aquired drive.

Definition at line 78 of file libburner.c.

Referenced by libburner_aquire_drive(), libburner_blank_disc(), libburner_format(), and libburner_payload().

char current_profile_name[80] = {""} [static]

Definition at line 79 of file libburner.c.

Referenced by libburner_aquire_drive(), and libburner_format().

int do_blank = 0 [static]

Definition at line 582 of file libburner.c.

Referenced by libburner_setup(), and main().

int do_multi = 0 [static]

Definition at line 585 of file libburner.c.

Referenced by libburner_setup(), and main().

char drive_adr[BURN_DRIVE_ADR_LEN] = {""} [static]

The setup parameters of libburner.

Definition at line 580 of file libburner.c.

Referenced by libburner_setup(), and main().

unsigned int drive_count [static]

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.

Definition at line 71 of file libburner.c.

Referenced by libburner_aquire_by_driveno().

int drive_is_grabbed = 0 [static]

This variable indicates wether the drive is grabbed and must be finally released.

Definition at line 75 of file libburner.c.

Referenced by libburner_aquire_by_adr(), libburner_aquire_by_driveno(), and main().

struct burn_drive_info* drive_list [static]

Overview.

libburner is a minimal demo application for the library libburn as provided on http://libburnia-project.org . It can list the available devices, can blank a CD-RW or DVD-RW, can format DVD-RW and BD, can burn to CD-R, CD-RW, DVD-R, DVD+R, DVD+R/DL, DVD+RW, DVD-RW, DVD-RAM, BD-R, BD-RE. Not supported yet: DVD-R/DL.

It's main purpose, nevertheless, is to show you how to use libburn and also to serve the libburnia 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() and provide some signal and abort handling, e.g. by the builtin handler, by burn_set_signal_handling() 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 can blank a CD-RW libburner_blank_disc() or you can format a DVD-RW to profile "Restricted Overwrite" (needed once) or an unused BD to default size with spare blocks libburner_format() With the aquired drive you can burn to CD, DVD, BD libburner_payload() When everything is done, main() releases the drive and shuts down libburn: burn_drive_release(); burn_finish() See this for the decisive API specs . libburn.h is The Original 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.

Definition at line 67 of file libburner.c.

int driveno = 0 [static]

Definition at line 581 of file libburner.c.

Referenced by libburner_setup(), and main().

int simulate_burn = 0 [static]

Definition at line 586 of file libburner.c.

Referenced by libburner_setup(), and main().

char source_adr[99][4096] [static]

Definition at line 583 of file libburner.c.

Referenced by libburner_setup(), and main().

int source_adr_count = 0 [static]

Definition at line 584 of file libburner.c.

Referenced by libburner_setup(), and main().