libisoburn/xorriso/lib_mgt.c

489 lines
14 KiB
C

/* 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 manage the relation between xorriso
and the libraries: libburn, libisofs, libisoburn.
*/
#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>
/* for -charset */
#include <iconv.h>
#include <langinfo.h>
#include "xorriso.h"
#include "xorriso_private.h"
#include "xorrisoburn.h"
#include "lib_mgt.h"
int Xorriso_abort(struct XorrisO *xorriso, int flag)
{
int ret;
ret= burn_abort(4440, burn_abort_pacifier, "xorriso : ");
if(ret<=0) {
fprintf(stderr,
"\nxorriso : ABORT : Cannot cancel burn session and release drive.\n");
return(0);
}
fprintf(stderr,
"xorriso : ABORT : Drive is released and library is shut down now.\n");
fprintf(stderr,
"xorriso : ABORT : Program done. Even if you do not see a shell prompt.\n");
fprintf(stderr, "\n");
exit(1);
}
/* @param flag bit0= asynchronous handling (else catch thread, wait, and exit)
*/
int Xorriso_set_signal_handling(struct XorrisO *xorriso, int flag)
{
char *handler_prefix= NULL;
if(Xorriso__get_signal_behavior(0) != 1)
return(2);
handler_prefix= calloc(strlen(xorriso->progname)+3+1, 1);
if(handler_prefix==NULL) {
sprintf(xorriso->info_text,
"Cannot allocate memory for for setting signal handler");
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
return(-1);
}
sprintf(handler_prefix, "%s : ", xorriso->progname);
burn_set_signal_handling(handler_prefix, NULL, (flag & 1) * 0x30);
free(handler_prefix);
return(1);
}
int Xorriso_startup_libraries(struct XorrisO *xorriso, int flag)
{
int ret, major, minor, micro;
char *queue_sev, *print_sev, reason[1024];
struct iso_zisofs_ctrl zisofs_ctrl= {0, 6, 15};
/* First an ugly compile time check for header version compatibility.
If everthing matches, then no C code is produced. In case of mismatch,
intentionally faulty C code will be inserted.
*/
/* The minimum requirement of xorriso towards the libisoburn header
at compile time is defined in xorriso/xorrisoburn.h
xorriso_libisoburn_req_major
xorriso_libisoburn_req_minor
xorriso_libisoburn_req_micro
It gets compared against the version macros in libburn/libburn.h :
isoburn_header_version_major
isoburn_header_version_minor
isoburn_header_version_micro
If the header is too old then the following code shall cause failure of
cdrskin compilation rather than to allow production of a program with
unpredictable bugs or memory corruption.
The compiler messages supposed to appear in this case are:
error: 'LIBISOBURN_MISCONFIGURATION' undeclared (first use in this function)
error: 'INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_libisoburn_dot_h_TOO_OLD__SEE_xorrisoburn_dot_c' undeclared (first use in this function)
error: 'LIBISOBURN_MISCONFIGURATION_' undeclared (first use in this function)
*/
/* The indendation is an advise of man gcc to help old compilers ignoring */
#if xorriso_libisoburn_req_major > isoburn_header_version_major
#define Isoburn_libisoburn_dot_h_too_olD 1
#endif
#if xorriso_libisoburn_req_major == isoburn_header_version_major && xorriso_libisoburn_req_minor > isoburn_header_version_minor
#define Isoburn_libisoburn_dot_h_too_olD 1
#endif
#if xorriso_libisoburn_req_minor == isoburn_header_version_minor && xorriso_libisoburn_req_micro > isoburn_header_version_micro
#define Isoburn_libisoburn_dot_h_too_olD 1
#endif
#ifdef Isoburn_libisoburn_dot_h_too_olD
LIBISOBURN_MISCONFIGURATION = 0;
INTENTIONAL_ABORT_OF_COMPILATION__HEADERFILE_libisoburn_dot_h_TOO_OLD__SEE_xorrisoburn_dot_c = 0;
LIBISOBURN_MISCONFIGURATION_ = 0;
#endif
/* End of ugly compile time test (scroll up for explanation) */
reason[0]= 0;
ret= isoburn_initialize(reason, 0);
if(ret==0) {
sprintf(xorriso->info_text, "Cannot initialize libraries");
if(reason[0])
sprintf(xorriso->info_text+strlen(xorriso->info_text),
". Reason given:\n%s", reason);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
return(0);
}
ret= isoburn_is_compatible(isoburn_header_version_major,
isoburn_header_version_minor,
isoburn_header_version_micro, 0);
if(ret<=0) {
isoburn_version(&major, &minor, &micro);
sprintf(xorriso->info_text,
"libisoburn version too old: %d.%d.%d . Need at least: %d.%d.%d .\n",
major, minor, micro,
isoburn_header_version_major, isoburn_header_version_minor,
isoburn_header_version_micro);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FATAL", 0);
return(-1);
}
xorriso->libs_are_started= 1;
queue_sev= "ALL";
if(xorriso->library_msg_direct_print) {
/* >>> need option for controlling this in XorrisO.
See also Xorriso_msgs_submit */;
print_sev= xorriso->report_about_text;
} else
print_sev= "NEVER";
iso_set_msgs_severities(queue_sev, print_sev, "libsofs : ");
burn_msgs_set_severities(queue_sev, print_sev, "libburn : ");
/* ??? >>> do we want united queues ? */
/* burn_set_messenger(iso_get_messenger()); */
isoburn_set_msgs_submit(Xorriso_msgs_submit_void, (void *) xorriso,
(3<<2) | 128 , 0);
ret= Xorriso_set_signal_handling(xorriso, 0);
if(ret <= 0)
return(ret);
ret = iso_zisofs_get_params(&zisofs_ctrl, 0);
if (ret == 1) {
xorriso->zisofs_block_size= xorriso->zisofs_block_size_default=
(1 << zisofs_ctrl.block_size_log2);
xorriso->zlib_level= xorriso->zlib_level_default=
zisofs_ctrl.compression_level;
}
Xorriso_process_msg_queues(xorriso,0);
if(reason[0]) {
sprintf(xorriso->info_text, "%s", reason);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
}
strcpy(xorriso->info_text, "Using ");
strncat(xorriso->info_text, burn_scsi_transport_id(0), 1024);
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
return(1);
}
/* @param flag bit0= global shutdown of libraries */
int Xorriso_detach_libraries(struct XorrisO *xorriso, int flag)
{
Xorriso_give_up_drive(xorriso, 3);
if(xorriso->in_volset_handle!=NULL) { /* standalone image */
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->boot_count= 0;
}
if(flag&1) {
if(xorriso->libs_are_started==0)
return(0);
isoburn_finish();
}
return(1);
}
/* @param flag bit0= suppress messages below UPDATE
bit1= suppress messages below FAILURE
*/
int Xorriso_set_image_severities(struct XorrisO *xorriso, int flag)
{
char *queue_sev, *print_sev;
if(flag&2)
queue_sev= "FAILURE";
else if(flag&1)
queue_sev= "UPDATE";
else
queue_sev= "ALL";
if(xorriso->library_msg_direct_print)
print_sev= xorriso->report_about_text;
else
print_sev= "NEVER";
iso_set_msgs_severities(queue_sev, print_sev, "libisofs : ");
return(1);
}
/* @param flag bit0=prepare for a burn run */
int Xorriso_set_abort_severity(struct XorrisO *xorriso, int flag)
{
int ret, abort_on_number;
char *sev_text;
static int note_number= -1, failure_number= -1;
if(note_number==-1)
Xorriso__text_to_sev("NOTE", &note_number, 0);
if(failure_number==-1)
Xorriso__text_to_sev("FAILURE", &failure_number, 0);
sev_text= xorriso->abort_on_text;
ret= Xorriso__text_to_sev(xorriso->abort_on_text, &abort_on_number, 0);
if(ret<=0)
return(ret);
if(abort_on_number<note_number)
sev_text= "NOTE";
else if(abort_on_number>failure_number)
sev_text= "FAILURE";
ret= iso_set_abort_severity(sev_text);
return(ret>=0);
}
int Xorriso_report_lib_versions(struct XorrisO *xorriso, int flag)
{
int major, minor, micro;
int req_major, req_minor, req_micro;
iso_lib_version(&major, &minor, &micro);
isoburn_libisofs_req(&req_major, &req_minor, &req_micro);
sprintf(xorriso->result_line,
"libisofs in use : %d.%d.%d (min. %d.%d.%d)\n",
major, minor, micro, req_major, req_minor, req_micro);
Xorriso_result(xorriso, 0);
burn_version(&major, &minor, &micro);
isoburn_libburn_req(&req_major, &req_minor, &req_micro);
sprintf(xorriso->result_line,
"libburn in use : %d.%d.%d (min. %d.%d.%d)\n",
major, minor, micro, req_major, req_minor, req_micro);
Xorriso_result(xorriso, 0);
strcpy(xorriso->result_line, "libburn OS adapter: ");
strncat(xorriso->result_line, burn_scsi_transport_id(0), 1024);
strcat(xorriso->result_line, "\n");
Xorriso_result(xorriso, 0);
isoburn_version(&major, &minor, &micro);
sprintf(xorriso->result_line,
"libisoburn in use : %d.%d.%d (min. %d.%d.%d)\n",
major, minor, micro,
isoburn_header_version_major, isoburn_header_version_minor,
isoburn_header_version_micro);
Xorriso_result(xorriso, 0);
return(1);
}
int Xorriso__sev_to_text(int severity, char **severity_name,
int flag)
{
int ret;
ret= iso_sev_to_text(severity, severity_name);
if(ret>0)
return(ret);
ret= burn_sev_to_text(severity, severity_name, 0);
if(ret>0)
return(ret);
*severity_name= "";
return(0);
}
int Xorriso__text_to_sev(char *severity_name, int *severity_number, int flag)
{
int ret= 1;
ret= iso_text_to_sev(severity_name, severity_number);
if(ret>0)
return(ret);
ret= burn_text_to_sev(severity_name, severity_number, 0);
return(ret);
}
/* @param flag bit0= report libisofs error text
bit1= victim is disk_path
bit2= do not inquire libisofs, report msg_text and min_severity
*/
int Xorriso_report_iso_error(struct XorrisO *xorriso, char *victim,
int iso_error_code, char msg_text[], int os_errno,
char min_severity[], int flag)
{
int error_code, iso_sev, min_sev, ret;
char *sev_text_pt, *msg_text_pt= NULL;
char sfe[6*SfileadrL];
static int sorry_sev= -1;
if(sorry_sev<0)
Xorriso__text_to_sev("SORRY", &sorry_sev, 0);
if(flag&4) {
error_code= 0x00050000;
Xorriso__text_to_sev(min_severity, &iso_sev, 0);
} else {
error_code= iso_error_get_code(iso_error_code);
if(error_code < 0x00030000 || error_code >= 0x00040000)
error_code= (error_code & 0xffff) | 0x00050000;
if(flag&1)
msg_text_pt= (char *) iso_error_to_msg(iso_error_code);
iso_sev= iso_error_get_severity(iso_error_code);
}
if(msg_text_pt==NULL)
msg_text_pt= msg_text;
if(iso_sev >= sorry_sev && (flag & 2) && victim[0])
Xorriso_msgs_submit(xorriso, 0, victim, 0, "ERRFILE", 0);
sev_text_pt= min_severity;
Xorriso__text_to_sev(min_severity, &min_sev, 0);
if(min_sev < iso_sev && !(flag&4))
Xorriso__sev_to_text(iso_sev, &sev_text_pt, 0);
strcpy(sfe, msg_text_pt);
if(victim[0]) {
strcat(sfe, ": ");
Text_shellsafe(victim, sfe+strlen(sfe), 0);
}
ret= Xorriso_msgs_submit(xorriso, error_code, sfe, os_errno, sev_text_pt, 4);
return(ret);
}
int Xorriso_get_local_charset(struct XorrisO *xorriso, char **name, int flag)
{
(*name)= iso_get_local_charset(0);
return(1);
}
int Xorriso_set_local_charset(struct XorrisO *xorriso, char *name, int flag)
{
int ret;
char *nl_charset, sfe[5 * SfileadrL];
iconv_t iconv_ret= (iconv_t) -1;
nl_charset= nl_langinfo(CODESET);
if(name == NULL)
name= nl_charset;
if(name != NULL) {
iconv_ret= iconv_open(nl_charset, name);
if(iconv_ret == (iconv_t) -1)
goto cannot;
else
iconv_close(iconv_ret);
}
ret= iso_set_local_charset(name, 0);
if(ret <= 0) {
cannot:;
sprintf(xorriso->info_text,
"-local_charset: Cannot assume as local character set: %s",
Text_shellsafe(name, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
return(0);
}
sprintf(xorriso->info_text, "Local character set is now assumed as: %s",
Text_shellsafe(name, sfe, 0));
Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
return(1);
}
int Xorriso_process_msg_queues(struct XorrisO *xorriso, int flag)
{
int ret, error_code= 0, os_errno= 0, count= 0, pass, imgid, tunneled;
char severity[80];
if(!xorriso->libs_are_started)
return(1);
for(pass= 0; pass< 2; pass++) {
while(1) {
tunneled= 0;
if(pass==0)
ret= iso_obtain_msgs("ALL", &error_code, &imgid,
xorriso->info_text, severity);
else {
ret= burn_msgs_obtain("ALL", &error_code, xorriso->info_text, &os_errno,
severity);
if((error_code>=0x00030000 && error_code<0x00040000) ||
(error_code>=0x00050000 && error_code<0x00060000))
tunneled= -1; /* "libisofs:" */
else if(error_code>=0x00060000 && error_code<0x00070000)
tunneled= 1; /* "libisoburn:" */
}
if(ret<=0)
break;
/* <<< tunneled MISHAP from libisoburn through libburn
or well known error codes of MISHAP events
With libburn-0.4.4 this is not necessary */
if(error_code==0x5ff73 || error_code==0x3ff73 ||
error_code==0x3feb9 || error_code==0x3feb2)
strcpy(severity, "MISHAP");
else if(error_code==0x51001)
strcpy(severity, "ERRFILE");
Xorriso_msgs_submit(xorriso, error_code, xorriso->info_text, os_errno,
severity, ((pass+tunneled)+1)<<2);
count++;
}
}
if(xorriso->library_msg_direct_print && count>0) {
sprintf(xorriso->info_text," (%d library messages repeated by xorriso)\n",
count);
Xorriso_info(xorriso, 0);
}
return(1);
}
int Xorriso_md5_start(struct XorrisO *xorriso, void **ctx, int flag)
{
int ret;
ret= iso_md5_start(ctx);
if(ret == 1)
return(1);
Xorriso_no_malloc_memory(xorriso, NULL, 0);
return(-1);
}
int Xorriso_md5_compute(struct XorrisO *xorriso, void *ctx,
char *data, int datalen, int flag)
{
iso_md5_compute(ctx, data, datalen);
return(1);
}
int Xorriso_md5_end(struct XorrisO *xorriso, void **ctx, char md5[16],
int flag)
{
int ret;
ret= iso_md5_end(ctx, md5);
Xorriso_process_msg_queues(xorriso,0);
if(ret <= 0)
return(0);
return(1);
}