450 lines
11 KiB
C
450 lines
11 KiB
C
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/* Adapter to libisoburn, libisofs and libburn for xorriso,
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a command line oriented batch and dialog tool which creates, loads,
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manipulates and burns ISO 9660 filesystem images.
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Copyright 2007 Thomas Schmitt, <scdbackup@gmx.net>
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Provided under GPL version 2.
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*/
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#include <ctype.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <sys/stat.h>
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/* ------------------------------------------------------------------------ */
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/* The library which does the ISO 9660 / RockRidge manipulations */
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#include <libisofs/libisofs.h>
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/* The library which does MMC optical drive operations */
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#include <libburn/libburn.h>
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/* The library which enhances overwriteable media with ISO 9660 multi-session
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capabilities via the method invented by Andy Polyakov for growisofs */
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#include <libisoburn/libisoburn.h>
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/* The inner description of XorrisO */
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#include "xorriso_private.h"
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/* The inner isofs- and burn-library interface */
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#include "xorrisoburn.h"
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/* ------------------------------------------------------------------------ */
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int Xorriso_startup_libraries(struct XorrisO *xorriso, int flag)
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{
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int ret;
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char *handler_prefix= NULL;
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/* >>> rather send this to msg system of xorriso */;
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fprintf(stderr, "Starting up libraries ...\n");
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handler_prefix= calloc(strlen(xorriso->progname)+3+1, 1);
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if(handler_prefix==NULL) {
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/* >>> rather send this to msg system of xorriso */;
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fprintf(stderr, "--- Cannot allocate memory for initializing libraries\n");
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return(-1);
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}
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ret= isoburn_initialize();
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if(ret==0) {
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/* >>> rather send this to msg system of xorriso */;
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fprintf(stderr, "--- Cannot initialize libraries\n");
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free(handler_prefix);
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return(0);
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}
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/* >>> need option for controlling this in XorrisO */
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iso_msgs_set_severities("NEVER", "DEBUG", "libisofs : ");
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burn_msgs_set_severities("NEVER", "DEBUG", "libburn : ");
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sprintf(handler_prefix, "%s : ", xorriso->progname);
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burn_set_signal_handling(handler_prefix, NULL, 0);
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fprintf(stderr,"Library startup done.\n");
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free(handler_prefix);
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return(1);
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}
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/* @param flag bit0=aquire as isoburn input drive
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bit1=aquire as libburn output drive (as isoburn drive if bit0)
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*/
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int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
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{
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int ret;
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struct burn_drive_info *dinfo= NULL;
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struct burn_drive *drive;
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enum burn_disc_status state;
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struct iso_volset *volset;
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struct isoburn_read_opts ropts;
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if((flag&3)!=3) {
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fprintf(stderr,">>> XORRISOBURN: Xorriso_aquire_drive bit0+bit1 not set\n");
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return(0);
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}
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ret= Xorriso_give_up_drive(xorriso, flag&3);
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if(ret<=0)
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return(ret);
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ret= isoburn_drive_scan_and_grab(&dinfo, adr, 1);
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if(ret<=0) {
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fprintf(stderr,"--- Cannot aquire drive '%s'\n", adr);
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return(0);
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}
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if(flag&2)
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xorriso->out_drive_handle= dinfo;
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if(flag&1)
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xorriso->in_drive_handle= dinfo;
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else
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return(1);
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drive= dinfo[0].drive;
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/* check for invalid state */
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state= isoburn_disc_get_status(drive);
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/* >>> show drive and media status */;
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if(state != BURN_DISC_BLANK && state != BURN_DISC_APPENDABLE) {
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/* >>> rather send this to msg system of xorriso */;
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fprintf(stderr, "Unsuitable disc status\n");
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ret= 0; goto ex;
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}
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/* fill read opts */
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ropts.norock= 0;
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ropts.nojoliet= 0;
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ropts.preferjoliet= 0;
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ropts.uid= 0;
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ropts.gid= 0;
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ropts.mode= 0555;
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if(isoburn_read_volset(drive, &ropts, &volset) <= 0) {
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/* >>> rather send this to msg system of xorriso */;
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fprintf(stderr, "Can't read volset\n");
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ret= 0; goto ex;
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}
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xorriso->in_volset_handle= volset;
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ret= 1;
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ex:
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if(ret<=0) {
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/* >>> ??? give up not-so-suitable drive ? */;
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}
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return(ret);
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}
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/* @param flag bit0=input drive
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bit1=output drive
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*/
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int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
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{
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int in_is_out_too;
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struct burn_drive_info *dinfo;
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struct burn_drive *drive;
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in_is_out_too= (xorriso->in_drive_handle == xorriso->out_drive_handle);
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if((flag&1) && xorriso->in_drive_handle != NULL) {
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dinfo= (struct burn_drive_info *) xorriso->in_drive_handle;
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drive= dinfo[0].drive;
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isoburn_drive_release(drive,0);
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/* >>> this should be an official reference for this pointer which was
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handed out by isoburn_read_volset() and attached to invisible
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struct isoburn. Then to be processed by: iso_volset_free(volset);
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*/
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xorriso->in_volset_handle= NULL; /* destroyed by isoburn_drive_release() */
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xorriso->volset_change_pending= 0;
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burn_drive_info_free(dinfo);
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xorriso->in_drive_handle= NULL;
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if(in_is_out_too)
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xorriso->out_drive_handle= NULL;
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}
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if((flag&2) && xorriso->out_drive_handle!=NULL) {
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dinfo= (struct burn_drive_info *) xorriso->out_drive_handle;
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drive= dinfo[0].drive;
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isoburn_drive_release(drive,0);
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burn_drive_info_free(dinfo);
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xorriso->out_drive_handle= NULL;
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}
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return(1);
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}
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int Xorriso_write_growing(struct XorrisO *xorriso, int flag)
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{
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int ret;
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struct isoburn_source_opts sopts;
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struct burn_drive_info *dinfo;
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struct burn_drive *drive;
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struct burn_disc *disc;
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struct burn_write_opts *burn_options;
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dinfo= (struct burn_drive_info *) xorriso->in_drive_handle;
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if(dinfo==NULL) {
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/* >>> */
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fprintf(stderr, "--- No drive aquired\n");
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return(0);
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}
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drive= dinfo[0].drive;
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sopts.level= 2;
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sopts.flags= ECMA119_ROCKRIDGE;
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if(xorriso->do_joliet)
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sopts.flags|= ECMA119_ROCKRIDGE;
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sopts.relaxed_constraints= 0;
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sopts.copy_eltorito= 1;
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sopts.no_cache_inodes= 0;
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sopts.sort_files= 1;
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sopts.default_mode= 0;
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sopts.replace_dir_mode= 0;
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sopts.dir_mode= 0555;
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sopts.replace_file_mode= 0;
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sopts.file_mode= 0444;
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sopts.replace_uid= (xorriso->do_global_uid);
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sopts.uid= xorriso->global_uid;
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sopts.replace_gid= (xorriso->do_global_gid);
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sopts.gid= xorriso->global_gid;
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sopts.input_charset= NULL;
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sopts.ouput_charset= NULL;
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/* >>> -fs : isoburn_prepare_disc() needs fifo parameters */
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if (isoburn_prepare_disc(drive, &disc, &sopts) <= 0) {
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/* >>> */
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fprintf(stderr, "--- Cannot prepare disc\n");
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return(0);
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}
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burn_options= burn_write_opts_new(drive);
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if(burn_options==NULL) {
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/* >>> */
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fprintf(stderr, "--- Cannot allocate option set\n");
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return(0);
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}
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burn_write_opts_set_simulate(burn_options, !!xorriso->do_dummy);
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burn_write_opts_set_multi(burn_options, !xorriso->do_close);
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burn_drive_set_speed(drive, xorriso->speed, xorriso->speed);
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burn_write_opts_set_underrun_proof(burn_options, 1);
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isoburn_disc_write(burn_options, disc);
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burn_write_opts_free(burn_options);
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ret= Xorriso_pacifier_loop(xorriso, drive, 0);
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if(ret<=0)
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return(ret);
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ret= isoburn_activate_session(drive);
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if(ret<=0) {
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fprintf(stderr, "--- Could not write new set olf volume descriptors\n");
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return(ret);
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}
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/* >>> cleanup disc ? */
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return(1);
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}
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int Xorriso_pacifier_loop(struct XorrisO *xorriso, struct burn_drive *drive,
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int flag)
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{
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int ret, size, free_bytes, i;
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struct burn_progress progress;
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char *status_text;
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while(burn_drive_get_status(drive, NULL) == BURN_DRIVE_SPAWNING)
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usleep(100002);
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while(burn_drive_get_status(drive, &progress) != BURN_DRIVE_IDLE) {
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/* >>> make this output go into xorriso info channel */;
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printf("Writing: sector %d of %d",
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progress.sector, progress.sectors);
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ret= isoburn_get_fifo_status(drive, &size, &free_bytes, &status_text);
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if(ret>0 )
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printf(" [fifo %s, %2d%% fill]", status_text,
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(int) (100.0-100.0*((double) free_bytes)/(double) size));
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printf("\n");
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for(i= 0; i<10; i++) {
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/* >>> check message system of libburn */;
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usleep(100000);
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}
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}
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return(1);
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}
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int Xorriso_graft_in(struct XorrisO *xorriso, char *disk_path, char *img_path,
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int flag)
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{
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struct iso_volume *volume;
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struct iso_tree_radd_dir_behavior behav= {NULL, 0, 0};
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char path[SfileadrL], *apt, *npt;
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struct iso_tree_node_dir *dir;
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struct iso_tree_node *node;
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int done= 0, is_dir= 0, l;
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struct stat stbuf;
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if(xorriso->in_volset_handle==NULL) {
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/* >>> */
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fprintf(stderr, "--- No volset is loaded.\n");
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if(xorriso->indev[0]==0)
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fprintf(stderr, "--- No -dev or -indev is selected.\n");
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else
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fprintf(stderr, "--- Possible program error with drive '%s'\n",
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xorriso->indev);
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return(0);
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}
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strncpy(path, img_path, sizeof(path)-1);
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path[sizeof(path)-1]= 0;
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apt= npt= path;
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volume= iso_volset_get_volume(
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(struct iso_volset *) xorriso->in_volset_handle, 0);
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if(lstat(disk_path, &stbuf) == -1) {
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/* >>> */
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fprintf(stderr, "--- Cannot determine attributes of '%s' : %s (%d)\n",
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disk_path, (errno > 0 ? strerror(errno) : "unknown error"), errno);
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return(0);
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}
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if(S_ISDIR(stbuf.st_mode))
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is_dir= 1;
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else if(!(S_ISREG(stbuf.st_mode) || S_ISLNK(stbuf.st_mode))) {
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/* >>> */
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fprintf(stderr, "--- File object '%s' is of non-supported file type\n",
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disk_path);
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return(0);
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} else {
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l= strlen(img_path);
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if(l>0)
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if(img_path[l-1]=='/')
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l= 0;
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if(l==0) {
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/* >>> */
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fprintf(stderr,
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"--- Source '%s' is not a directory. Target '%s' would be.\n",
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disk_path, img_path);
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}
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}
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dir= iso_volume_get_root(volume);
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if(dir==NULL) {
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/* >>> */
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fprintf(stderr, "--- While grafting '%s' : no root node available\n",
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img_path);
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return(0);
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}
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for(npt= apt; !done; apt= npt+1) {
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npt= strchr(apt, '/');
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if(npt==NULL) {
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npt= apt+strlen(apt);
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done= 1;
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} else
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*npt= 0;
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if(*apt==0) {
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*apt= '/';
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apt++;
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if(done)
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goto attach_source;
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continue;
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}
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node= iso_tree_volume_path_to_node(volume,path);
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if(node!=NULL) {
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if(iso_tree_node_get_type(node)!=LIBISO_NODE_DIR) {
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if(done) {
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/* >>> handle overwrite situation */;
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}
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/* >>> */
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fprintf(stderr,
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"--- While grafting '%s' : '%s' exists and is not a directory\n",
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img_path, path);
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return(0);
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}
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dir= (struct iso_tree_node_dir *) node;
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} else if(is_dir || !done) {
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dir= iso_tree_add_dir(dir, apt);
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if(dir==NULL) {
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/* >>> */
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fprintf(stderr, "--- While grafting '%s' : could not insert '%s'\n",
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img_path, path);
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return(0);
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}
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}
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if(done) {
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attach_source:;
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if(is_dir) {
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iso_tree_radd_dir(dir, disk_path, &behav);
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} else {
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node= iso_tree_add_node(dir, disk_path);
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if(node == NULL) {
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/* >>> */
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fprintf(stderr, "While grafting '%s'='%s' : libisofs_errno = %d\n",
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img_path, disk_path, libisofs_errno);
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return(0);
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}
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iso_tree_node_set_name(node, apt);
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}
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} else
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*npt= '/';
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}
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fprintf(stderr, "NOTE: added %s '%s'='%s'\n", (is_dir ? "directory" : "node"),
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img_path, disk_path);
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xorriso->volset_change_pending= 1;
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return(1);
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}
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