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/*
cc -g -c isoburn.c
*/
/*
Class core of libisoburn.
Copyright 2007 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
and Thomas Schmitt <scdbackup@gmx.net>
*/
/* ( derived from stub generated by CgeN on Sat, 01 Sep 2007 12:04:36 GMT ) */
#include <sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#ifndef Xorriso_standalonE
#include <libburn/libburn.h>
/* >>> NG */
#include <libisofs/nglibisofs.h>
#else /* ! Xorriso_standalonE */
#include "../libisofs/libisofs.h"
#include "../libburn/libburn.h"
#endif /* Xorriso_standalonE */
#include "libisoburn.h"
#include "isoburn.h"
/* -------------------------- isoburn ----------------------- */
/* The global list of isoburn objects. Usually there is only one.
>>> we are not ready for multiple control threads yet. See >>> mutex .
Multiple burns under one control thread should work.
*/
struct isoburn *isoburn_list_start= NULL;
int isoburn_new(struct isoburn **objpt, int flag)
{
struct isoburn *o;
int i, ret;
*objpt= o= (struct isoburn *) malloc(sizeof(struct isoburn));
if(o==NULL)
return(-1);
o->drive= NULL;
o->emulation_mode= 0;
o->min_start_byte= 0;
o->nwa= 0;
#ifdef Libisoburn_no_fifO
o->iso_source= NULL;
#else
o->fifo= NULL;
#endif
o->wrote_well= -1;
o->fabricated_disc_status= BURN_DISC_UNREADY;
for(i=0;i<65536;i++)
o->target_iso_head[i]= 0;
o->image= NULL;
o->prev= NULL;
o->next= NULL;
ret= iso_image_new("ISOIMAGE", &o->image);
if(ret<0)
goto failed;
isoburn_link(o, isoburn_list_start, 1);
return(1);
failed:;
isoburn_destroy(objpt, 0);
return(-1);
}
int isoburn_destroy(struct isoburn **objpt, int flag)
{
struct isoburn *o;
o= *objpt;
if(o==NULL)
return(0);
/* >>> mutex */
if(o==isoburn_list_start)
isoburn_list_start= o->next;
if(o->prev!=NULL)
o->prev->next= o->next;
if(o->next!=NULL)
o->next->prev= o->prev;
/* >>> end mutex */
if(o->image!=NULL)
iso_image_unref(o->image);
#ifdef Libisoburn_no_fifO
if(o->iso_source!=NULL)
burn_source_free(o->iso_source);
#else
if(o->fifo!=NULL)
burn_source_free(o->fifo);
#endif /* ! Libisoburn_no_fifO */
free((char *) o);
*objpt= NULL;
return(1);
}
int isoburn_destroy_all(struct isoburn **objpt, int flag)
{
struct isoburn *o,*n;
o= *objpt;
if(o==NULL)
return(0);
for(;o->prev!=NULL;o= o->prev);
for(;o!=NULL;o= n) {
n= o->next;
isoburn_destroy(&o,0);
}
*objpt= NULL;
return(1);
}
int isoburn_get_target_image(struct isoburn *o, IsoImage **pt, int flag)
{
*pt= o->image;
return(1);
}
int isoburn_get_prev(struct isoburn *o, struct isoburn **pt, int flag)
{
*pt= o->prev;
return(1);
}
int isoburn_get_next(struct isoburn *o, struct isoburn **pt, int flag)
{
*pt= o->next;
return(1);
}
int isoburn_link(struct isoburn *o, struct isoburn *link, int flag)
/*
bit0= insert as link->prev rather than as link->next
*/
{
/* >>> mutex */
if(isoburn_list_start==NULL ||
(isoburn_list_start==link && (flag&1)))
isoburn_list_start= o;
if(o->prev!=NULL)
o->prev->next= o->next;
if(o->next!=NULL)
o->next->prev= o->prev;
o->prev= o->next= NULL;
if(link==NULL)
return(1);
if(flag&1) {
o->next= link;
o->prev= link->prev;
if(o->prev!=NULL)
o->prev->next= o;
link->prev= o;
} else {
o->prev= link;
o->next= link->next;
if(o->next!=NULL)
o->next->prev= o;
link->next= o;
}
/* >>> end mutex */
return(1);
}
int isoburn_count(struct isoburn *o, int flag)
/* flag: bit1= count from start of list */
{
int counter= 0;
if(flag&2)
for(;o->prev!=NULL;o= o->prev);
for(;o!=NULL;o= o->next)
counter++;
return(counter);
}
int isoburn_by_idx(struct isoburn *o, int idx, struct isoburn **pt, int flag)
/* flag: bit0= fetch first (idx<0) or last (idx>0) item in list
bit1= address from start of list */
{
int i,abs_idx;
struct isoburn *npt;
if(flag&2)
for(;o->prev!=NULL;o= o->prev);
abs_idx= (idx>0?idx:-idx);
*pt= o;
for(i= 0;(i<abs_idx || (flag&1)) && *pt!=NULL;i++) {
if(idx>0)
npt= o->next;
else
npt= o->prev;
if(npt==NULL && (flag&1))
break;
*pt= npt;
}
return(*pt!=NULL);
}
int isoburn_find_by_drive(struct isoburn **pt, struct burn_drive *d, int flag)
{
struct isoburn *o;
*pt= NULL;
for(o= isoburn_list_start;o!=NULL;o= o->next)
if(o->drive==d) {
*pt= o;
return(1);
}
return(0);
}
static
int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
struct isoburn_source_opts *opts, int new_img)
{
struct burn_source *wsrc;
struct burn_session *session;
struct burn_track *track;
struct isoburn *o;
Ecma119WriteOpts wopts;
enum burn_disc_status state;
int ret, fifo_chunks;
ret= isoburn_find_emulator(&o, d, 0);
if(ret<0 || o==NULL)
return -1;
o->wrote_well= 0; /* early end will be registered as failure */
state = isoburn_disc_get_status(d);
if (state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE
&& (state != BURN_DISC_FULL || ! new_img)) {
/* unsuitable status */
return -2;
}
fifo_chunks= 32;
if(opts->fifo_size >= 64*1024 && opts->fifo_size <= 1024.0 * 1024.0 * 1024.0){
fifo_chunks= opts->fifo_size/2048;
if(fifo_chunks*2048 < opts->fifo_size)
fifo_chunks++;
}
memset((char *) &wopts, 0, sizeof(wopts));
wopts.level = opts->level;
wopts.rockridge = opts->rockridge;
wopts.joliet = opts->joliet;
wopts.iso1999 = opts->iso1999;
wopts.omit_version_numbers = opts->omit_version_numbers;
wopts.allow_deep_paths = opts->allow_deep_paths;
wopts.allow_longer_paths = opts->allow_longer_paths;
wopts.max_37_char_filenames = opts->max_37_char_filenames;
wopts.no_force_dots = opts->no_force_dots;
wopts.allow_lowercase = opts->allow_lowercase;
wopts.allow_full_ascii = opts->allow_full_ascii;
wopts.joliet_longer_paths = opts->joliet_longer_paths;
wopts.sort_files = opts->sort_files;
wopts.replace_dir_mode = opts->replace_dir_mode;
wopts.replace_file_mode = opts->replace_file_mode;
wopts.replace_uid = opts->replace_uid;
wopts.replace_gid = opts->replace_gid;
wopts.dir_mode = opts->dir_mode;
wopts.file_mode = opts->file_mode;
wopts.gid = opts->gid;
wopts.uid = opts->uid;
wopts.output_charset = opts->output_charset;
#ifdef Libisoburn_no_fifO
wopts.fifo_size= fifo_chunks;
/* <<<
fprintf(stderr, "libisoburn_DEBUG: fifo chunks: %d\n", fifo_chunks);
*/
#endif /* Libisoburn_no_fifO */
if (new_img) {
wopts.ms_block = 0;
wopts.appendable = 0;
wopts.overwrite = NULL;
} else {
int lba, nwa;
ret = isoburn_disc_track_lba_nwa(d, NULL, 0, &lba, &nwa);
if (ret != 1)
return -3;
if (nwa == 0 && state == BURN_DISC_APPENDABLE) {
/* invalid nwa */
return -4;
}
wopts.ms_block = nwa;
wopts.appendable = 1;
wopts.overwrite = o->target_iso_head;
}
ret = iso_image_create_burn_source(o->image, &wopts, &wsrc);
if (ret < 0)
return -1;
/* TODO check return values for failure. propertly clean-up on error */
#ifdef Libisoburn_no_fifO
o->iso_source= wsrc;
#else
o->fifo = burn_fifo_source_new(wsrc, 2048, fifo_chunks, 0);
burn_source_free(wsrc);
if (o->fifo == NULL) {
fprintf(stderr, "Cannot attach fifo\n");
return -1;
}
#endif /* ! Libisoburn_no_fifO */
*disc = burn_disc_create();
session = burn_session_create();
burn_disc_add_session(*disc, session, BURN_POS_END);
track = burn_track_create();
#ifdef Libisoburn_no_fifO
burn_track_set_source(track, o->iso_source);
#else
burn_track_set_source(track, o->fifo);
#endif /* ! Libisoburn_no_fifO */
burn_session_add_track(session, track, BURN_POS_END);
/* give up local references */
burn_track_free(track);
burn_session_free(session);
o->wrote_well= -1; /* neutral */
return 1;
}
int isoburn_prepare_disc(struct burn_drive *d, struct burn_disc **disc,
struct isoburn_source_opts *opts)
{
return isoburn_prepare_disc_aux(d, disc, opts, 0);
}
int isoburn_prepare_new_image(struct burn_drive *d, struct burn_disc **disc,
struct isoburn_source_opts *opts)
{
return isoburn_prepare_disc_aux(d, disc, opts, 1);
}