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libisoburn/xorriso/iso_img.c

1162 lines
35 KiB

/* xorriso - creates, loads, manipulates and burns ISO 9660 filesystem images.
Copyright 2007-2010 Thomas Schmitt, <scdbackup@gmx.net>
Provided under GPL version 2 or later.
This file contains functions which operate on ISO images and their
global properties.
*/
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
#include <ctype.h>
#include <sys/types.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <time.h>
#include <errno.h>
#include <sys/wait.h>
#include "xorriso.h"
#include "xorriso_private.h"
#include "xorrisoburn.h"
#include "lib_mgt.h"
#include "iso_img.h"
#include "iso_tree.h"
#include "drive_mgt.h"
int Xorriso_set_ignore_aclea(struct XorrisO *xorriso, int flag)
{
int ret, hflag;
IsoImage *volume;
ret= Xorriso_get_volume(xorriso, &volume, 1);
if(ret<=0)
return(ret);
hflag= (~xorriso->do_aaip) & 1;
if((xorriso->ino_behavior & (1 | 2)) && !(xorriso->do_aaip & (4 | 16)))
hflag|= 2;
iso_image_set_ignore_aclea(volume, hflag);
return(1);
}
int Xorriso_update_volid(struct XorrisO *xorriso, int flag)
{
int gret, sret= 1;
gret= Xorriso_get_volid(xorriso, xorriso->loaded_volid, 0);
if(gret<=0 || (!xorriso->volid_default) || xorriso->loaded_volid[0]==0)
sret= Xorriso_set_volid(xorriso, xorriso->volid, 1);
return(gret>0 && sret>0);
}
int Xorriso_create_empty_iso(struct XorrisO *xorriso, int flag)
{
int ret;
IsoImage *volset;
struct isoburn_read_opts *ropts;
struct burn_drive_info *dinfo= NULL;
struct burn_drive *drive= NULL;
if(xorriso->out_drive_handle != NULL) {
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to attach volset to drive", 2);
if(ret<=0)
return(ret);
}
if(xorriso->in_volset_handle!=NULL) {
iso_image_unref((IsoImage *) xorriso->in_volset_handle);
xorriso->in_volset_handle= NULL;
Sectorbitmap_destroy(&(xorriso->in_sector_map), 0);
Xorriso_destroy_di_array(xorriso, 0);
Xorriso_destroy_hln_array(xorriso, 0);
xorriso->loaded_volid[0]= 0;
xorriso->volset_change_pending= 0;
xorriso->boot_count= 0;
xorriso->no_volset_present= 0;
}
ret= isoburn_ropt_new(&ropts, 0);
if(ret<=0)
return(ret);
/* Note: no return before isoburn_ropt_destroy() */
isoburn_ropt_set_extensions(ropts, isoburn_ropt_pretend_blank);
isoburn_ropt_set_input_charset(ropts, xorriso->in_charset);
isoburn_set_read_pacifier(drive, NULL, NULL);
ret= isoburn_read_image(drive, ropts, &volset);
Xorriso_process_msg_queues(xorriso,0);
isoburn_ropt_destroy(&ropts, 0);
if(ret<=0) {
sprintf(xorriso->info_text, "Failed to create new empty ISO image object");
Xorriso_report_iso_error(xorriso, "", ret, xorriso->info_text, 0, "FATAL",
0);
return(-1);
}
xorriso->in_volset_handle= (void *) volset;
xorriso->in_sector_map= NULL;
Xorriso_update_volid(xorriso, 0);
xorriso->volset_change_pending= 0;
xorriso->boot_count= 0;
xorriso->no_volset_present= 0;
return(1);
}
int Xorriso_record_boot_info(struct XorrisO *xorriso, int flag)
{
int ret;
struct burn_drive_info *dinfo;
struct burn_drive *drive;
IsoImage *image;
ElToritoBootImage *bootimg;
IsoFile *bootimg_node;
IsoBoot *bootcat_node;
xorriso->loaded_boot_bin_lba= -1;
xorriso->loaded_boot_cat_path[0]= 0;
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to record boot LBAs", 0);
if(ret<=0)
return(0);
image= isoburn_get_attached_image(drive);
if(image == NULL)
return(0);
ret= iso_image_get_boot_image(image, &bootimg,
&bootimg_node, &bootcat_node);
iso_image_unref(image); /* release obtained reference */
if(ret != 1)
return(0);
if(bootimg_node != NULL)
Xorriso__file_start_lba((IsoNode *) bootimg_node,
&(xorriso->loaded_boot_bin_lba), 0);
if(bootcat_node != NULL)
Xorriso_path_from_lba(xorriso, (IsoNode *) bootcat_node, 0,
xorriso->loaded_boot_cat_path, 0);
return(1);
}
int Xorriso_assert_volid(struct XorrisO *xorriso, int msc1, int flag)
{
int ret, image_blocks;
char volid[33];
struct burn_drive_info *dinfo;
struct burn_drive *drive;
if(xorriso->assert_volid[0] == 0)
return(1);
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to perform -assert_volid", 0);
if(ret<=0)
return(0);
ret= isoburn_read_iso_head(drive, msc1, &image_blocks, volid, 1);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0) {
sprintf(xorriso->info_text,
"-assert_volid: Cannot determine Volume Id at LBA %d.", msc1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0,
xorriso->assert_volid_sev, 0);
return(0);
}
ret= Sregex_match(xorriso->assert_volid, volid, 0);
if(ret < 0)
return(2);
if(ret == 0) {
strcpy(xorriso->info_text,
"-assert_volid: Volume id does not match pattern: ");
Text_shellsafe(xorriso->assert_volid, xorriso->info_text, 1);
strcat(xorriso->info_text, " <> ");
Text_shellsafe(volid, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0,
xorriso->assert_volid_sev, 0);
return(0);
}
return(ret);
}
/* @return <0 yes , 0 no , <0 error */
int Xorriso_is_isohybrid(struct XorrisO *xorriso, IsoFile *bootimg_node,
int flag)
{
int ret;
unsigned char buf[68];
void *data_stream= NULL;
ret= Xorriso_iso_file_open(xorriso, "", (void *) bootimg_node,
&data_stream, 1);
if(ret <= 0)
return(-1);
ret= Xorriso_iso_file_read(xorriso, data_stream, (char *) buf, 68, 0);
Xorriso_iso_file_close(xorriso, &data_stream, 0);
if(ret <= 0)
return(0);
if(buf[64] == 0xfb && buf[65] == 0xc0 && buf[66] == 0x78 && buf[67] == 0x70)
return(1);
return(0);
}
int Xorriso_image_has_md5(struct XorrisO *xorriso, int flag)
{
int ret;
IsoImage *image;
uint32_t start_lba, end_lba;
char md5[16];
ret= Xorriso_get_volume(xorriso, &image, 0);
if(ret<=0)
return(ret);
ret= iso_image_get_session_md5(image, &start_lba, &end_lba, md5, 0);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0)
return(0);
return(1);
}
static const char *un0(const char *text)
{
if(text == NULL)
return("");
return(text);
}
int Xorriso_pvd_info(struct XorrisO *xorriso, int flag)
{
int ret, msc1= -1, msc2, i;
IsoImage *image;
struct burn_drive_info *dinfo;
struct burn_drive *drive;
char *msg, block_head[8];
off_t head_count;
msg= xorriso->result_line;
ret= Xorriso_get_volume(xorriso, &image, 0);
if(ret<=0)
return(ret);
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive, "", 16);
if(ret > 0) {
ret= Xorriso_msinfo(xorriso, &msc1, &msc2, 1 | 4);
if(ret<0)
return(ret);
Xorriso_toc(xorriso, 128);
if(msc1 >= 0) {
for(i = msc1 + 16; i < msc1 + 32; i++) {
ret= burn_read_data(drive, (off_t) i * (off_t) 2048, block_head,
(off_t) sizeof(block_head), &head_count, 2);
if(ret <= 0) {
i= msc1 + 32;
break;
}
if(block_head[0] == 1 && strncmp(block_head + 1, "CD001", 5) == 0)
break;
}
if(i < msc1 + 32) {
sprintf(msg, "PVD address : %ds\n", i);
Xorriso_result(xorriso,0);
}
}
}
sprintf(msg, "Volume Id : %s\n", un0(iso_image_get_volume_id(image)));
Xorriso_result(xorriso,0);
sprintf(msg, "Volume Set Id: %s\n", xorriso->volset_id);
Xorriso_result(xorriso,0);
sprintf(msg, "Publisher Id : %s\n", xorriso->publisher);
Xorriso_result(xorriso,0);
sprintf(msg, "Preparer Id : %s\n",
un0(iso_image_get_data_preparer_id(image)));
Xorriso_result(xorriso,0);
sprintf(msg, "App Id : %s\n", xorriso->application_id);
Xorriso_result(xorriso,0);
sprintf(msg, "System Id : %s\n", xorriso->system_id);
Xorriso_result(xorriso,0);
sprintf(msg, "CopyrightFile: %s\n", xorriso->copyright_file);
Xorriso_result(xorriso,0);
sprintf(msg, "Abstract File: %s\n", xorriso->abstract_file);
Xorriso_result(xorriso,0);
sprintf(msg, "Biblio File : %s\n", xorriso->biblio_file);
Xorriso_result(xorriso,0);
return(1);
}
/* @param flag bit0= do not mark image as changed */
int Xorriso_set_volid(struct XorrisO *xorriso, char *volid, int flag)
{
int ret;
IsoImage *volume;
if(xorriso->in_volset_handle == NULL)
return(2);
ret= Xorriso_get_volume(xorriso, &volume, 0);
if(ret<=0)
return(ret);
iso_image_set_volume_id(volume, volid);
if(!(flag&1))
Xorriso_set_change_pending(xorriso, 1);
Xorriso_process_msg_queues(xorriso,0);
sprintf(xorriso->info_text,"Volume ID: '%s'",iso_image_get_volume_id(volume));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
return(1);
}
int Xorriso_get_volid(struct XorrisO *xorriso, char volid[33], int flag)
{
int ret;
IsoImage *volume;
ret= Xorriso_get_volume(xorriso, &volume, 0);
if(ret<=0)
return(ret);
strncpy(volid, iso_image_get_volume_id(volume), 32);
volid[32]= 0;
return(1);
}
/*
bit0= do only report non-default settings
bit1= do only report to fp
bit2= is_default
bit3= append -boot_image any next
bit4= eventually concentrate boot options
*/
int Xorriso_boot_item_status(struct XorrisO *xorriso, char *cat_path,
char *bin_path, int platform_id,
int patch_isolinux, int emul, off_t load_size,
unsigned char *id_string,
unsigned char *selection_crit, char *form,
char *filter, FILE *fp, int flag)
{
int is_default, no_defaults, i, is_default_id= 0, ret;
char *line, *bspec= NULL, zeros[28];
off_t file_size;
struct stat stbuf;
Xorriso_alloc_meM(bspec, char, SfileadrL + 80);
no_defaults= flag & 1;
line= xorriso->result_line;
if(flag & 16) {
/* Allow to concentrate boot options. */
memset(zeros, 0, 28);
if(memcmp(id_string, zeros, 28) == 0 &&
memcmp(selection_crit, zeros, 20) == 0)
is_default_id= 1;
/* -boot_image isolinux dir= ... */
bspec[0]= 0;
if(strcmp(form, "isolinux") != 0 && strcmp(form, "any") != 0)
;
else if(strcmp(bin_path, "/isolinux.bin") == 0 &&
strcmp(cat_path, "/boot.cat") == 0)
strcpy(bspec, "dir=/");
else if(strcmp(bin_path, "/isolinux/isolinux.bin") == 0 &&
strcmp(cat_path, "/isolinux/boot.cat") == 0)
strcpy(bspec, "dir=/isolinux");
else if(strcmp(xorriso->boot_image_bin_path,
"/boot/isolinux/isolinux.bin") == 0
&& strcmp(xorriso->boot_image_cat_path,
"/boot/isolinux/boot.cat") == 0)
strcpy(bspec, "dir=/boot/isolinux");
memset(zeros, 0, 28);
if(bspec[0] && platform_id == 0 && patch_isolinux &&
load_size == 2048 && is_default_id && emul == 0) {
sprintf(line, "-boot_image isolinux %s\n", bspec);
Xorriso_status_result(xorriso,filter,fp,flag&2);
{ret= 1; goto ex;};
}
file_size= 0;
ret= Xorriso_iso_lstat(xorriso, bin_path, &stbuf, 2 | 4);
if(ret == 0)
file_size= ((stbuf.st_size / (off_t) 512) +
!!(stbuf.st_size % (off_t) 512)) * 512;
if(platform_id == 0xef && !patch_isolinux &&
load_size == file_size && is_default_id && emul == 0) {
sprintf(line, "-boot_image any efi_path=");
Text_shellsafe(bin_path, line, 1);
strcat(line, "\n");
Xorriso_status_result(xorriso,filter,fp,flag&2);
{ret= 1; goto ex;};
}
}
is_default= (bin_path[0] == 0) || (flag & 4);
sprintf(line, "-boot_image %s bin_path=", form);
Text_shellsafe(bin_path, line, 1);
strcat(line, "\n");
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
is_default= (emul == 0);
sprintf(line, "-boot_image %s emul_type=%s\n",
form, emul == 2 ? "diskette" : emul == 1 ? "hard_disk" : "no_emulation");
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
is_default= (platform_id == 0 || (flag & 4));
sprintf(line, "-boot_image %s platform_id=0x%-2.2x\n", form, platform_id);
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
is_default= ((patch_isolinux & 1) == 0 || bin_path[0] == 0 || (flag & 4));
sprintf(line, "-boot_image %s boot_info_table=%s\n",
(patch_isolinux & 2) ? "grub" : form, patch_isolinux ? "on" : "off");
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
is_default= (load_size == 2048 || (flag & 4));
sprintf(line, "-boot_image %s load_size=%lu\n",
form, (unsigned long) load_size);
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
is_default= 1;
if(!(flag & 4))
for(i= 0; i < 20; i++)
if(selection_crit[i])
is_default= 0;
sprintf(line, "-boot_image %s sel_crit=", form);
for(i= 0; i < 20; i++)
sprintf(line + strlen(line), "%-2.2X", (unsigned int) selection_crit[i]);
strcat(line, "\n");
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
is_default= 1;
if(!(flag & 4))
for(i= 0; i < 28; i++)
if(id_string[i])
is_default= 0;
sprintf(line, "-boot_image %s id_string=", form);
for(i= 0; i < 28; i++)
sprintf(line + strlen(line), "%-2.2X", (unsigned int) id_string[i]);
strcat(line, "\n");
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
ret= 1;
ex:;
Xorriso_free_meM(bspec);
return(ret);
}
/*
bit0= do only report non-default settings
bit1= do only report to fp
*/
int Xorriso_boot_status_non_mbr(struct XorrisO *xorriso, IsoImage *image,
char *filter, FILE *fp, int flag)
{
int i, num_boots, sa_type;
char *paths[15], *line;
line= xorriso->result_line;
sa_type= (xorriso->system_area_options & 0xfc) >> 2;
if(sa_type == 3) {
sprintf(line, "-boot_image any sparc_label=");
Text_shellsafe(xorriso->ascii_disc_label, line, 1);
strcat(line, "\n");
Xorriso_status_result(xorriso, filter, fp, flag & 2);
return(0);
}
if(sa_type != 1 && sa_type != 2)
return(0);
num_boots= iso_image_get_mips_boot_files(image, paths, 0);
Xorriso_process_msg_queues(xorriso, 0);
if(num_boots <= 0)
return(num_boots);
if(sa_type == 2)
num_boots= 1;
for(i= 0; i < num_boots; i++) {
sprintf(line, "-boot_image any mips%s_path=", sa_type ==2 ? "el" : "");
Text_shellsafe(paths[i], line, 1);
strcat(line, "\n");
Xorriso_status_result(xorriso, filter, fp, flag & 2);
}
return(num_boots);
}
/*
bit0= do only report non-default settings
bit1= do only report to fp
*/
int Xorriso_append_part_status(struct XorrisO *xorriso, IsoImage *image,
char *filter, FILE *fp, int flag)
{
int i;
for(i= 0; i < Xorriso_max_appended_partitionS; i++) {
if(xorriso->appended_partitions[i] == NULL)
continue;
sprintf(xorriso->result_line, "-append_partition %d 0x%2.2x ",
i + 1, (unsigned int) xorriso->appended_part_types[i]);
Text_shellsafe(xorriso->appended_partitions[i], xorriso->result_line, 1);
strcat(xorriso->result_line, "\n");
Xorriso_status_result(xorriso, filter, fp, flag & 2);
}
return(1);
}
/*
bit0= do only report non-default settings
bit1= do only report to fp
*/
int Xorriso_boot_image_status(struct XorrisO *xorriso, char *filter, FILE *fp,
int flag)
{
int ret, i, num_boots, hflag;
int bin_path_in_use= 0, is_default, no_defaults;
char *path= NULL, *form= "any", *line, *hpt;
struct burn_drive_info *dinfo;
struct burn_drive *drive;
IsoImage *image= NULL;
ElToritoBootImage **boots = NULL;
IsoFile **bootnodes = NULL;
int platform_id, patch, load_size;
enum eltorito_boot_media_type media_type;
unsigned char id_string[29], sel_crit[21];
Xorriso_alloc_meM(path, char, SfileadrL);
line= xorriso->result_line;
no_defaults= flag & 1;
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to print boot info", 2 | 16);
if(ret<=0)
goto no_image;
image= isoburn_get_attached_image(drive);
Xorriso_process_msg_queues(xorriso,0);
if(image == NULL)
goto no_image;
ret= Xorriso_boot_status_non_mbr(xorriso, image, filter, fp, flag & 3);
if(ret < 0) /* == 0 is normal */
{ret= 0; goto ex;}
if(xorriso->boot_count == 0 && xorriso->boot_image_bin_path[0] == 0) {
no_image:;
if(xorriso->patch_isolinux_image & 1) {
sprintf(line, "-boot_image %s patch\n",
xorriso->patch_isolinux_image & 2 ? "grub" : form);
is_default= 0;
} else if(xorriso->keep_boot_image) {
sprintf(line, "-boot_image %s keep\n", form);
is_default= 0;
} else {
sprintf(line, "-boot_image %s discard\n", form);
is_default= 1;
}
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
ret= 1; goto after_el_torito;
}
if(xorriso->boot_image_bin_path[0] || xorriso->boot_count > 0)
bin_path_in_use= 1;
if(xorriso->boot_image_cat_path[0] && bin_path_in_use) {
is_default= 0;
sprintf(line,"-boot_image %s cat_path=", form);
Text_shellsafe(xorriso->boot_image_cat_path, line, 1);
strcat(line, "\n");
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
}
if(bin_path_in_use) {
is_default= !xorriso->boot_image_cat_hidden;
hpt= Xorriso__hide_mode_text(xorriso->boot_image_cat_hidden & 3, 0);
sprintf(line, "-boot_image %s cat_hidden=%s\n", form, hpt);
if(!(is_default && no_defaults))
Xorriso_status_result(xorriso,filter,fp,flag&2);
}
if(xorriso->boot_count > 0) {
/* show attached boot image info */;
ret= iso_image_get_all_boot_imgs(image, &num_boots, &boots, &bootnodes, 0);
Xorriso_process_msg_queues(xorriso,0);
if(ret == 1 && num_boots > 0) {
for(i= 0; i < num_boots; i++) {
ret= Xorriso_path_from_node(xorriso, (IsoNode *) bootnodes[i], path, 0);
if(ret <= 0)
continue;
platform_id= el_torito_get_boot_platform_id(boots[i]);
patch= el_torito_get_isolinux_options(boots[i], 0);
el_torito_get_boot_media_type(boots[i], &media_type);
load_size= el_torito_get_load_size(boots[i]) * 512;
el_torito_get_id_string(boots[i], id_string);
el_torito_get_selection_crit(boots[i], sel_crit);
if(media_type == ELTORITO_FLOPPY_EMUL)
media_type= 2;
else if(media_type == ELTORITO_HARD_DISC_EMUL)
media_type= 1;
else
media_type= 0;
ret= Xorriso_boot_item_status(xorriso, xorriso->boot_image_cat_path,
path, platform_id, patch & 1, media_type,
load_size, id_string, sel_crit, "any",
filter, fp, 16 | (flag & 3));
if(ret <= 0)
continue;
sprintf(line,"-boot_image %s next\n", form);
Xorriso_status_result(xorriso,filter,fp,flag&2);
}
}
}
/* Show pending boot image info */
if(strcmp(xorriso->boot_image_bin_form, "isolinux") == 0 ||
strcmp(xorriso->boot_image_bin_form, "grub") == 0)
form= xorriso->boot_image_bin_form;
if(xorriso->boot_count > 0 &&
xorriso->boot_platform_id == 0 &&
xorriso->patch_isolinux_image == 0 &&
xorriso->boot_image_bin_path[0] == 0 &&
xorriso->boot_image_emul == 0 &&
xorriso->boot_image_load_size == 4 * 512) {
for(i= 0; i < 20; i++)
if(xorriso->boot_selection_crit[i])
break;
if(i >= 20)
for(i= 0; i < 28; i++)
if(xorriso->boot_id_string[i])
break;
if(i >= 28)
{ret= 1; goto ex;} /* Images registered, pending is still default */
}
hflag= 16;
if(xorriso->boot_platform_id == 0xef && !xorriso->boot_efi_default)
hflag= 0;
ret= Xorriso_boot_item_status(xorriso, xorriso->boot_image_cat_path,
xorriso->boot_image_bin_path, xorriso->boot_platform_id,
xorriso->patch_isolinux_image, xorriso->boot_image_emul,
xorriso->boot_image_load_size, xorriso->boot_id_string,
xorriso->boot_selection_crit, form,
filter, fp, hflag | (flag & 3));
if(ret <= 0)
goto ex;
after_el_torito:;
ret = Xorriso_append_part_status(xorriso, image, filter, fp, flag & 3);
if(ret <= 0)
goto ex;
ret= 1;
ex:
if(boots != NULL)
free(boots);
if(bootnodes != NULL)
free(bootnodes);
if(image != NULL)
iso_image_unref(image);
Xorriso_free_meM(path);
return(ret);
}
int Xorriso__append_boot_params(char *line, ElToritoBootImage *bootimg,
int flag)
{
unsigned int platform_id;
platform_id= el_torito_get_boot_platform_id(bootimg);
if(platform_id != 0)
sprintf(line + strlen(line),
" , platform_id=0x%-2.2X ", (unsigned int) platform_id);
if(el_torito_seems_boot_info_table(bootimg, 0))
sprintf(line + strlen(line), " , boot_info_table=on");
return(1);
}
/* @param flag bit0= no output if no boot record was found
bit1= short form
bit3= report to info channel (else to result channel)
*/
int Xorriso_show_boot_info(struct XorrisO *xorriso, int flag)
{
int ret, bin_path_valid= 0,has_isolinux_mbr= 0, i, num_boots;
unsigned int mbr_lba= 0;
off_t lb0_count;
char *respt, *path;
unsigned char lb0[2048];
struct burn_drive_info *dinfo;
struct burn_drive *drive;
IsoImage *image= NULL;
ElToritoBootImage *bootimg, **boots = NULL;
IsoFile *bootimg_node, **bootnodes = NULL;
IsoBoot *bootcat_node;
Xorriso_alloc_meM(path, char, SfileadrL);
respt= xorriso->result_line;
if(xorriso->boot_count > 0) {
if(!(flag & 1)) {
sprintf(respt, "Boot record : overridden by -boot_image any next\n");
Xorriso_toc_line(xorriso, flag & 8);
}
ret= 1; goto ex;
}
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to print boot info", 16);
if(ret<=0)
goto no_boot;
image= isoburn_get_attached_image(drive);
if(image == NULL) {
ret= 0;
no_boot:;
if(!(flag & 1)) {
sprintf(respt, "Boot record : none\n");
Xorriso_toc_line(xorriso, flag & 8);
}
goto ex;
}
/* Using the nodes with extreme care . They might be deleted meanwhile. */
ret= iso_image_get_boot_image(image, &bootimg, &bootimg_node, &bootcat_node);
if(ret != 1)
goto no_boot;
ret= iso_image_get_all_boot_imgs(image, &num_boots, &boots, &bootnodes, 0);
Xorriso_process_msg_queues(xorriso,0);
if(ret != 1) {
num_boots= 0;
} else {
ret= Xorriso_path_from_node(xorriso, (IsoNode *) bootnodes[0], path, 0);
if(ret > 0)
bin_path_valid= 1;
}
sprintf(respt, "Boot record : El Torito");
if(bin_path_valid)
ret= Xorriso_is_isohybrid(xorriso, bootimg_node, 0);
else
ret= 0;
if(ret > 0) {
/* Load and examine potential MBR */
ret= burn_read_data(drive, (off_t) 0, (char *) lb0, (off_t) 2048,
&lb0_count, 2);
if(ret > 0) {
has_isolinux_mbr= 1;
if(lb0[510] != 0x55 || lb0[511] != 0xaa)
has_isolinux_mbr= 0;
mbr_lba= lb0[432] | (lb0[433] << 8) | (lb0[434] << 16) | (lb0[435] << 24);
mbr_lba/= 4;
if(mbr_lba != xorriso->loaded_boot_bin_lba)
has_isolinux_mbr= 0;
if(has_isolinux_mbr) {
for(i= 0; i < 426; i++)
if(strncmp((char *) (lb0 + i), "isolinux", 8) == 0)
break;
if(i >= 426)
has_isolinux_mbr= 0;
}
for(i= 462; i < 510; i++)
if(lb0[i])
break;
if(i < 510)
has_isolinux_mbr= 0;
}
if(has_isolinux_mbr)
strcat(respt, " , ISOLINUX isohybrid MBR pointing to boot image");
else
strcat(respt, " , ISOLINUX boot image capable of isohybrid");
}
strcat(respt, "\n");
Xorriso_toc_line(xorriso, flag & 8);
if(flag & 2)
{ret= 1; goto ex;}
if(xorriso->loaded_boot_cat_path[0]) {
sprintf(respt, "Boot catalog : ");
Text_shellsafe(xorriso->loaded_boot_cat_path, respt, 1);
strcat(respt, "\n");
} else {
sprintf(respt, "Boot catalog : -not-found-at-load-time-\n");
}
Xorriso_toc_line(xorriso, flag & 8);
if(bin_path_valid) {
sprintf(respt, "Boot image : ");
Text_shellsafe(path, respt, 1);
} else if(xorriso->loaded_boot_bin_lba <= 0) {
sprintf(respt, "Boot image : -not-found-at-load-time-");
} else {
sprintf(respt, "Boot image : -not-found-any-more-by-lba=%d",
xorriso->loaded_boot_bin_lba);
}
Xorriso__append_boot_params(respt, bootimg, 0);
strcat(respt, "\n");
Xorriso_toc_line(xorriso, flag & 8);
if(num_boots > 1) {
for(i= 1; i < num_boots; i++) {
ret= Xorriso_path_from_node(xorriso, (IsoNode *) bootnodes[i], path, 0);
if(ret > 0) {
sprintf(respt, "Boot image : ");
Text_shellsafe(path, respt, 1);
} else
sprintf(respt, "Boot image : -not-found-any-more-");
Xorriso__append_boot_params(respt, boots[i], 0);
strcat(respt, "\n");
Xorriso_toc_line(xorriso, flag & 8);
}
}
ret= 1;
ex:;
if(boots != NULL)
free(boots);
if(bootnodes != NULL);
free(bootnodes);
if(image != NULL)
iso_image_unref(image); /* release obtained reference */
Xorriso_free_meM(path);
return(ret);
}
/* @param flag bit0=silently return 0 if no volume/image is present
*/
int Xorriso_get_volume(struct XorrisO *xorriso, IsoImage **volume,
int flag)
{
if(xorriso->in_volset_handle==NULL) {
if(flag & 1)
return(0);
Xorriso_process_msg_queues(xorriso,0);
sprintf(xorriso->info_text,"No ISO image present.");
if(xorriso->indev[0]==0 && xorriso->outdev[0]==0)
sprintf(xorriso->info_text+strlen(xorriso->info_text),
" No -dev, -indev, or -outdev selected.");
else
sprintf(xorriso->info_text+strlen(xorriso->info_text),
" Possible program error with drive '%s'.", xorriso->indev);
if(!xorriso->no_volset_present)
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
xorriso->no_volset_present= 1;
return(0);
}
*volume= (IsoImage *) xorriso->in_volset_handle;
xorriso->no_volset_present= 0;
return(*volume != NULL);
}
int Xorriso_change_is_pending(struct XorrisO *xorriso, int flag)
{
if(flag & 1)
return(xorriso->volset_change_pending == 1);
return(!!xorriso->volset_change_pending);
}
/* @param flag bit0= do not set hln_change_pending */
int Xorriso_set_change_pending(struct XorrisO *xorriso, int flag)
{
int ret;
IsoImage *image;
ret= Xorriso_get_volume(xorriso, &image, 1);
if(ret <= 0)
return ret;
/* Do not override mark of -as mkisofs -print-size */
if(xorriso->volset_change_pending != 2)
xorriso->volset_change_pending= 1;
if(!(flag & 1))
xorriso->hln_change_pending= 1;
return(1);
}
/**
@param flag bit0= print mount command to result channel rather than
performing it
bit1= do not allow prefixes with cmd
bit2= interpret unprefixed cmd as shell:
*/
int Xorriso_mount(struct XorrisO *xorriso, char *dev, int adr_mode,
char *adr_value, char *cmd, int flag)
{
int ret, lba, track, session, params_flag= 0, is_safe= 0, is_extra_drive= 0;
int give_up= 0, mount_chardev= 0, status, aquire_flag= 0;
char volid[33], *devadr, *mount_command= NULL, *adr_data= NULL, *adr_pt;
char *dev_path, *libburn_adr= NULL;
char *dpt, *sysname= "";
struct stat stbuf;
struct burn_drive_info *dinfo= NULL;
struct burn_drive *drive= NULL;
Xorriso_alloc_meM(mount_command, char, SfileadrL);
Xorriso_alloc_meM(adr_data, char, 163);
Xorriso_alloc_meM(libburn_adr, char, BURN_DRIVE_ADR_LEN + SfileadrL);
devadr= dev;
adr_pt= adr_value;
if(strcmp(dev, "indev") == 0) {
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to perform -mount \"indev\"", 0);
if(ret<=0)
goto ex;
dev_path= devadr= xorriso->indev;
if(strncmp(dev_path, "stdio:", 6) == 0)
dev_path+= 6;
if(xorriso->in_drive_handle == xorriso->out_drive_handle)
give_up= 3;
else
give_up= 1;
} else if(strcmp(dev, "outdev") == 0) {
ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
"on attempt to perform -mount \"outdev\"",
2);
if(ret<=0)
goto ex;
dev_path= devadr= xorriso->outdev;
if(strncmp(dev_path, "stdio:", 6) == 0)
dev_path+= 6;
if(xorriso->in_drive_handle == xorriso->out_drive_handle)
give_up= 3;
else
give_up= 2;
} else {
is_extra_drive= 1;
dev_path= dev;
if(strncmp(dev_path, "stdio:", 6) == 0)
dev_path+= 6;
/* do only accept regular files and block devices */
ret= stat(dev_path, &stbuf);
if(ret == -1) {
sprintf(xorriso->info_text, "Cannot determine properties of file ");
Text_shellsafe(dev_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
ret= System_uname(&sysname, NULL, NULL, NULL, 0);
if(ret > 0 && strcmp(sysname, "FreeBSD") == 0)
mount_chardev= 1;
if(!(S_ISREG(stbuf.st_mode) || (S_ISBLK(stbuf.st_mode) && !mount_chardev)
|| (S_ISCHR(stbuf.st_mode) && !mount_chardev))) {
sprintf(xorriso->info_text,
"File object is not suitable as mount device: ");
Text_shellsafe(dev_path, xorriso->info_text, 1);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
/* Aquire drive as direct libburn address or via stdio: prefix */
ret= burn_drive_convert_fs_adr(dev, libburn_adr);
Xorriso_process_msg_queues(xorriso,0);
if(ret < 0)
{ret= -1; goto ex;}
if(ret == 0 && strncmp(dev, "stdio:", 6) != 0)
sprintf(libburn_adr, "stdio:%s", dev);
burn_preset_device_open(
xorriso->drives_exclusive && !(xorriso->mount_opts_flag & 1), 0, 0);
aquire_flag= 1;
if((xorriso->toc_emulation_flag & 2) && adr_mode == 3)
aquire_flag|= 16;
ret= isoburn_drive_aquire(&dinfo, libburn_adr, aquire_flag);
burn_preset_device_open(1, 0, 0);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0)
{ret= 0; goto ex;}
drive= dinfo[0].drive;
}
if(adr_mode == 4 && strlen(adr_pt) <= 80) {
ret= Xorriso__bourne_to_reg(adr_pt, adr_data, 0);
if(ret == 1) {
params_flag|= 4;
adr_pt= adr_data;
}
}
ret= isoburn_get_mount_params(drive, adr_mode, adr_pt, &lba, &track,
&session, volid, params_flag);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0)
goto ex;
if(((session <= 0 || track <= 0) && !(aquire_flag & 16)) || ret == 2) {
Xorriso_msgs_submit(xorriso, 0,
"-mount : Given address does not point to an ISO 9660 session",
0, "FAILURE", 0);
ret= 0; goto ex;
}
if(strstr(devadr, "stdio:") == devadr)
devadr+= 6;
ret= Xorriso_make_mount_cmd(xorriso, cmd, lba, track, session, volid, devadr,
mount_command, flag & (2 | 4));
if(ret <= 0)
goto ex;
if(ret == 2)
is_safe= 1;
if(is_extra_drive) {
isoburn_drive_release(drive, 0);
burn_drive_info_free(dinfo);
drive= NULL;
} else if(give_up > 0 && !((flag & 1) || (xorriso->mount_opts_flag & 1))) {
Xorriso_give_up_drive(xorriso, give_up);
if(ret <= 0)
goto ex;
}
Xorriso_process_msg_queues(xorriso,0);
sprintf(xorriso->info_text, "Volume id : ");
Text_shellsafe(volid, xorriso->info_text, 1);
strcat(xorriso->info_text, "\n");
Xorriso_info(xorriso, 0);
if(flag & 1) {
sprintf(xorriso->result_line, "%s\n", mount_command);
Xorriso_result(xorriso,0);
} else {
sprintf(xorriso->info_text, "Mount command: %s\n", mount_command);
Xorriso_info(xorriso, 0);
if(!is_safe) {
Xorriso_msgs_submit(xorriso, 0,
"-mount : Will not perform mount command which stems from command template.",
0, "SORRY", 0);
sprintf(xorriso->result_line, "%s\n", mount_command);
Xorriso_result(xorriso,0);
} else {
ret= Xorriso_execv(xorriso, mount_command, "/bin:/sbin", &status, 1);
if(WIFEXITED(status) && WEXITSTATUS(status) != 0) {
sprintf(xorriso->info_text,
"-mount : mount command failed with exit value %d",
(int) WEXITSTATUS(ret));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
ret= 0; goto ex;
}
sprintf(xorriso->info_text, "\nMounted session %d of device ", session);
Text_shellsafe(dev_path, xorriso->info_text, 1);
dpt= strchr(cmd, ':');
if(dpt == NULL)
dpt= cmd ;
else
dpt++;
sprintf(xorriso->info_text + strlen(xorriso->info_text), " as directory ");
Text_shellsafe(dpt, xorriso->info_text, 1);
strcat(xorriso->info_text, "\n");
Xorriso_info(xorriso, 0);
}
}
ret= 1;
ex:;
if(is_extra_drive && drive != NULL) {
isoburn_drive_release(drive, 0);
burn_drive_info_free(dinfo);
Xorriso_process_msg_queues(xorriso,0);
}
Xorriso_free_meM(mount_command);
Xorriso_free_meM(adr_data);
Xorriso_free_meM(libburn_adr);
return(ret);
}
/* @param flag bit0= give up all boot file paths
bit1= refuse if already a path is added
*/
int Xorriso_add_mips_boot_file(struct XorrisO *xorriso, char *path, int flag)
{
int ret;
IsoImage *image;
char *paths[15];
ret= Xorriso_get_volume(xorriso, &image, 0);
if(ret <= 0)
return ret;
if(flag & 1) {
iso_image_give_up_mips_boot(image, 0);
Xorriso_process_msg_queues(xorriso,0);
return(1);
}
if(flag & 2) {
ret= iso_image_get_mips_boot_files(image, paths, 0);
Xorriso_process_msg_queues(xorriso,0);
if(ret < 0)
goto report_error;
if(ret > 0) {
Xorriso_msgs_submit(xorriso, 0,
"There is already a boot image file registered.",
0, "FAILURE", 0);
return(0);
}
}
ret = iso_image_add_mips_boot_file(image, path, 0);
Xorriso_process_msg_queues(xorriso,0);
if (ret < 0) {
report_error:;
Xorriso_report_iso_error(xorriso, "", ret,
"Error when adding MIPS boot file",
0, "FAILURE", 1);
return(0);
}
return(1);
}
int Xorriso_coordinate_system_area(struct XorrisO *xorriso, int sa_type,
int options, char *cmd, int flag)
{
int old_type, old_options;
static char *type_names[4] = {
"MBR", "MIPS Big Endian Volume Header", "MIPS Little Endian Boot Block",
"SUN Disk Label"};
old_type= (xorriso->system_area_options & 0xfc) >> 2;
old_options= xorriso->system_area_options & ~0xfc;
if((old_type != 0 || old_options != 0) &&
(old_type != sa_type || (old_options != 0 && old_options != options))) {
sprintf(xorriso->info_text, "%s : First sector already occupied by %s",
cmd, old_type < 4 ? type_names[old_type] : "other boot facility");
if(old_type == 0 && old_options == 2)
strcat(xorriso->info_text, " for ISOLINUX isohybrid");
if(old_type == 0 && old_options == 1)
strcat(xorriso->info_text, " for partition table");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
goto hint_revoke;
}
xorriso->system_area_options= ((sa_type << 2) & 0xfc) | (options & ~0xfc);
if(sa_type == 0)
xorriso->patch_system_area= xorriso->system_area_options;
return(1);
hint_revoke:;
if(old_type == 0)
sprintf(xorriso->info_text, "Revokable by -boot_image any discard");
else if(old_type == 1 || old_type == 2)
sprintf(xorriso->info_text, "Revokable by -boot_image any mips_discard");
else if(old_type == 3)
sprintf(xorriso->info_text, "Revokable by -boot_image any sparc_discard");
if(old_type < 4)
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "HINT", 0);
return(0);
}