336 lines
7.0 KiB
C
336 lines
7.0 KiB
C
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/*
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cc -g -c isoburn.c
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*/
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/*
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Class core of libisoburn.
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Copyright 2007 Vreixo Formoso Lopes <metalpain2002@yahoo.es>
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and Thomas Schmitt <scdbackup@gmx.net>
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*/
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/* ( derived from stub generated by CgeN on Sat, 01 Sep 2007 12:04:36 GMT ) */
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#include <sys/types.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <libburn/libburn.h>
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#include <libisofs/libisofs.h>
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#include "libisoburn.h"
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#include "isoburn.h"
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/* -------------------------- isoburn ----------------------- */
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/* The global list of isoburn objects. Usually there is only one.
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>>> we are not ready for multiple control threads yet. See >>> mutex .
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Multiple burns under one control thread should work.
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*/
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struct isoburn *isoburn_list_start= NULL;
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int isoburn_new(struct isoburn **objpt, int flag)
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{
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struct isoburn *o;
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int i;
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*objpt= o= (struct isoburn *) malloc(sizeof(struct isoburn));
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if(o==NULL)
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return(-1);
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o->drive= NULL;
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o->emulation_mode= 0;
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o->min_start_byte= 0;
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o->nwa= 0;
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o->fifo= NULL;
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o->wrote_well= -1;
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o->src= NULL;
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o->fabricated_disc_status= BURN_DISC_UNREADY;
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for(i=0;i<65536;i++)
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o->target_iso_head[i]= 0;
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o->target_volset= NULL;
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o->prev= NULL;
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o->next= NULL;
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isoburn_link(o, isoburn_list_start, 1);
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return(1);
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}
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int isoburn_destroy(struct isoburn **objpt, int flag)
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{
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struct isoburn *o;
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o= *objpt;
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if(o==NULL)
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return(0);
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/* >>> mutex */
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if(o==isoburn_list_start)
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isoburn_list_start= o->next;
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if(o->prev!=NULL)
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o->prev->next= o->next;
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if(o->next!=NULL)
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o->next->prev= o->prev;
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/* >>> end mutex */
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if(o->target_volset!=NULL)
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iso_volset_free(o->target_volset);
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if(o->fifo!=NULL)
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burn_source_free(o->fifo);
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free((char *) o);
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*objpt= NULL;
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return(1);
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}
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int isoburn_destroy_all(struct isoburn **objpt, int flag)
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{
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struct isoburn *o,*n;
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o= *objpt;
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if(o==NULL)
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return(0);
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for(;o->prev!=NULL;o= o->prev);
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for(;o!=NULL;o= n) {
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n= o->next;
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isoburn_destroy(&o,0);
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}
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*objpt= NULL;
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return(1);
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}
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int isoburn_get_emulation_mode(struct isoburn *o, int *pt, int flag)
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{
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*pt= o->emulation_mode;
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return(1);
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}
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int isoburn_get_target_volset(struct isoburn *o, struct iso_volset **pt,
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int flag)
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{
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*pt= o->target_volset;
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return(1);
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}
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int isoburn_get_prev(struct isoburn *o, struct isoburn **pt, int flag)
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{
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*pt= o->prev;
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return(1);
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}
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int isoburn_get_next(struct isoburn *o, struct isoburn **pt, int flag)
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{
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*pt= o->next;
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return(1);
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}
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int isoburn_link(struct isoburn *o, struct isoburn *link, int flag)
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/*
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bit0= insert as link->prev rather than as link->next
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*/
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{
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/* >>> mutex */
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if(isoburn_list_start==NULL ||
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(isoburn_list_start==link && (flag&1)))
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isoburn_list_start= o;
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if(o->prev!=NULL)
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o->prev->next= o->next;
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if(o->next!=NULL)
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o->next->prev= o->prev;
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o->prev= o->next= NULL;
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if(link==NULL)
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return(1);
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if(flag&1) {
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o->next= link;
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o->prev= link->prev;
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if(o->prev!=NULL)
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o->prev->next= o;
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link->prev= o;
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} else {
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o->prev= link;
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o->next= link->next;
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if(o->next!=NULL)
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o->next->prev= o;
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link->next= o;
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}
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/* >>> end mutex */
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return(1);
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}
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int isoburn_count(struct isoburn *o, int flag)
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/* flag: bit1= count from start of list */
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{
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int counter= 0;
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if(flag&2)
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for(;o->prev!=NULL;o= o->prev);
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for(;o!=NULL;o= o->next)
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counter++;
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return(counter);
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}
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int isoburn_by_idx(struct isoburn *o, int idx, struct isoburn **pt, int flag)
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/* flag: bit0= fetch first (idx<0) or last (idx>0) item in list
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bit1= address from start of list */
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{
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int i,abs_idx;
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struct isoburn *npt;
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if(flag&2)
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for(;o->prev!=NULL;o= o->prev);
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abs_idx= (idx>0?idx:-idx);
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*pt= o;
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for(i= 0;(i<abs_idx || (flag&1)) && *pt!=NULL;i++) {
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if(idx>0)
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npt= o->next;
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else
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npt= o->prev;
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if(npt==NULL && (flag&1))
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break;
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*pt= npt;
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}
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return(*pt!=NULL);
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}
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int isoburn_find_by_drive(struct isoburn **pt, struct burn_drive *d, int flag)
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{
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struct isoburn *o;
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*pt= NULL;
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for(o= isoburn_list_start;o!=NULL;o= o->next)
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if(o->drive==d) {
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*pt= o;
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return(1);
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}
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return(0);
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}
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static
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int isoburn_prepare_disc_aux(struct burn_drive *d, struct burn_disc **disc,
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struct isoburn_source_opts *opts, int new_img)
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{
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struct burn_source *wsrc;
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struct burn_session *session;
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struct burn_track *track;
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struct isoburn *o;
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struct ecma119_source_opts wopts;
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enum burn_disc_status state;
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int ret, chunks;
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ret= isoburn_find_emulator(&o, d, 0);
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if(ret<0 || o==NULL)
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return -1;
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o->wrote_well= 0; /* early end will be registered as failure */
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state = isoburn_disc_get_status(d);
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if (state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE
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&& (state != BURN_DISC_FULL || ! new_img)) {
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/* unsuitable status */
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return -2;
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}
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wopts.volnum = 0;
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wopts.level = opts->level;
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wopts.flags = opts->flags;
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wopts.relaxed_constraints = opts->relaxed_constraints;
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wopts.copy_eltorito = opts->copy_eltorito;
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wopts.no_cache_inodes = opts->no_cache_inodes;
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wopts.sort_files = opts->sort_files;
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wopts.default_mode = opts->default_mode;
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wopts.replace_dir_mode = opts->replace_dir_mode;
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wopts.replace_file_mode = opts->replace_file_mode;
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wopts.replace_uid = opts->replace_uid;
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wopts.replace_gid = opts->replace_gid;
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wopts.dir_mode = opts->dir_mode;
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wopts.file_mode = opts->file_mode;
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wopts.gid = opts->gid;
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wopts.uid = opts->uid;
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wopts.input_charset = opts->input_charset;
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wopts.ouput_charset = opts->ouput_charset;
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if (new_img) {
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wopts.ms_block = 0;
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} else {
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int lba, nwa;
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ret = isoburn_disc_track_lba_nwa(d, NULL, 0, &lba, &nwa);
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if (ret != 1)
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return -3;
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if (nwa == 0 && state == BURN_DISC_APPENDABLE) {
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/* invalid nwa */
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return -4;
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}
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wopts.ms_block = nwa;
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}
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wopts.src = o->src;
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wopts.overwrite = (new_img ? NULL : o->target_iso_head);
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wsrc = iso_source_new_ecma119(o->target_volset, &wopts);
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if (wsrc == NULL)
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return -1;
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/* TODO check return values for failure. propertly clean-up on error */
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chunks= 32;
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if(opts->fifo_size >= 64*1024 && opts->fifo_size <= 1024.0 * 1024.0 * 1024.0){
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chunks= opts->fifo_size/2048;
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if(chunks*2048 < opts->fifo_size)
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chunks++;
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}
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o->fifo = burn_fifo_source_new(wsrc, 2048, chunks, 0);
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burn_source_free(wsrc);
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if (o->fifo == NULL) {
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fprintf(stderr, "Cannot attach fifo\n");
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return -1;
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}
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*disc = burn_disc_create();
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session = burn_session_create();
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burn_disc_add_session(*disc, session, BURN_POS_END);
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track = burn_track_create();
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burn_track_set_source(track, o->fifo);
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burn_session_add_track(session, track, BURN_POS_END);
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/* give up local references */
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burn_track_free(track);
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burn_session_free(session);
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o->wrote_well= -1; /* neutral */
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return 1;
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}
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int isoburn_prepare_disc(struct burn_drive *d, struct burn_disc **disc,
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struct isoburn_source_opts *opts)
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{
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return isoburn_prepare_disc_aux(d, disc, opts, 0);
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}
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int isoburn_prepare_new_image(struct burn_drive *d, struct burn_disc **disc,
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struct isoburn_source_opts *opts)
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{
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return isoburn_prepare_disc_aux(d, disc, opts, 1);
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}
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