Implemented use of stdio-pseudo-drives
This commit is contained in:
parent
5f728bd634
commit
b45e36e5e9
@ -1,6 +1,8 @@
|
||||
|
||||
/*
|
||||
cc -g -c burn_wrap.c
|
||||
cc -g -c \
|
||||
-D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE=1 -D_LARGEFILE64_SOURCE \
|
||||
burn_wrap.c
|
||||
*/
|
||||
/* libburn wrappers for libisoburn
|
||||
|
||||
@ -15,6 +17,7 @@
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
|
||||
|
||||
#include "../libburn/libburn.h"
|
||||
@ -29,15 +32,13 @@ extern struct isoburn *isoburn_list_start; /* in isoburn.c */
|
||||
|
||||
int isoburn_initialize(void)
|
||||
{
|
||||
int ret;
|
||||
|
||||
if(!iso_init())
|
||||
return(0);
|
||||
if(!burn_initialize())
|
||||
return(0);
|
||||
isoburn_destroy_all(&isoburn_list_start, 0); /* isoburn_list_start= NULL */
|
||||
|
||||
reurn(1);
|
||||
return(1);
|
||||
}
|
||||
|
||||
|
||||
@ -84,13 +85,10 @@ int isoburn_drive_scan_and_grab(struct burn_drive_info *drive_infos[],
|
||||
if(ret==0) {
|
||||
if(stat(adr,&stbuf)!=-1) {
|
||||
if(S_ISREG(stbuf.st_mode) || S_ISBLK(stbuf.st_mode)) {
|
||||
|
||||
return(0);
|
||||
/* >>> would be acceptable in future */;
|
||||
|
||||
/* >>> create null-drive */;
|
||||
/* >>> set emulation to standard i/o */;
|
||||
|
||||
ret= burn_drive_grab_dummy(drive_infos, adr);
|
||||
if(ret<=0)
|
||||
return(ret);
|
||||
o->emulation_mode= 2; /* standard i/o */
|
||||
} else {
|
||||
|
||||
/* >>> unsuitable file type */;
|
||||
@ -107,7 +105,7 @@ int isoburn_drive_scan_and_grab(struct burn_drive_info *drive_infos[],
|
||||
ret= burn_drive_scan_and_grab(drive_infos, adr, load);
|
||||
if(ret<=0)
|
||||
goto ex;
|
||||
ret= isoburn_examine_media(&o, (*drive_infos)[0].drive, 0);
|
||||
ret= isoburn_welcome_media(&o, (*drive_infos)[0].drive, 0);
|
||||
if(ret<=0)
|
||||
goto ex;
|
||||
}
|
||||
@ -128,7 +126,7 @@ int isoburn_drive_grab(struct burn_drive *drive, int load)
|
||||
ret= burn_drive_grab(drive, load);
|
||||
if(ret<=0)
|
||||
goto ex;
|
||||
ret= isoburn_examine_media(&o, drive, 0);
|
||||
ret= isoburn_welcome_media(&o, drive, 0);
|
||||
if(ret<=0)
|
||||
goto ex;
|
||||
|
||||
@ -187,16 +185,14 @@ void isoburn_disc_erase(struct burn_drive *drive, int fast)
|
||||
ret= isoburn_find_emulator(&o, drive, 0);
|
||||
if(ret>0) {
|
||||
if(o->emulation_mode==-1) {
|
||||
|
||||
/* >>> influence wrote_well reply or have wrote_well wrapper ? */
|
||||
|
||||
/* To cause a negative reply with burn_drive_wrote_well() */
|
||||
burn_drive_cancel(drive);
|
||||
return;
|
||||
}
|
||||
if(o->emulation_mode>0) {
|
||||
ret= isoburn_invalidate_iso(o, 0);
|
||||
|
||||
/* >>> influence wrote_well reply or have wrote_well wrapper ? */
|
||||
|
||||
if(ret<=0)
|
||||
burn_drive_cancel(drive);
|
||||
return;
|
||||
}
|
||||
}
|
||||
@ -239,29 +235,103 @@ int isoburn_disc_track_lba_nwa(struct burn_drive *d,
|
||||
}
|
||||
|
||||
|
||||
int isoburn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
|
||||
void isoburn_disc_write(struct burn_write_opts *opts, struct burn_disc *disc)
|
||||
{
|
||||
int ret;
|
||||
struct isoburn *o;
|
||||
struct burn_drive *drive;
|
||||
|
||||
drive= burn_write_opts_get_drive(opts);
|
||||
ret= isoburn_find_emulator(&o, drive, 0);
|
||||
if(ret<0)
|
||||
return(0);
|
||||
if(o->emulation_mode==2) {
|
||||
|
||||
return(0);
|
||||
/* >>> implement an asynchronous standard i/o writer */;
|
||||
|
||||
}
|
||||
burn_disc_write(opts, disc);
|
||||
}
|
||||
|
||||
|
||||
#ifdef NIX
|
||||
|
||||
int isoburn_random_access_write(struct burn_drive *d, off_t byte_address,
|
||||
char *data, off_t data_count, int flag)
|
||||
{
|
||||
int ret, mode = O_RDWR | O_LARGEFILE | O_CREAT;
|
||||
struct isoburn *o;
|
||||
|
||||
ret= isoburn_find_emulator(&o, d, 0);
|
||||
if(ret<0)
|
||||
return(0);
|
||||
if(o->emulation_mode==2) {
|
||||
if(flag&1)
|
||||
mode|= O_SYNC;
|
||||
o->stdio_fd= open(o->stdio_path, mode);
|
||||
if(o->stdio_fd==-1) {
|
||||
|
||||
/* >>> cannot open stdio_path */;
|
||||
return(0);
|
||||
}
|
||||
if(lseek(o->stdio_fd, byte_address, SEEK_SET)==-1) {
|
||||
|
||||
/* >>> cannot reach given byte_address */;
|
||||
ret= 0; goto close_stdio;
|
||||
}
|
||||
if(write(o->stdio_fd, data, data_count) != data_count) {
|
||||
|
||||
/* >>> cannot write desired number of bytes */;
|
||||
ret= 0; goto close_stdio;
|
||||
}
|
||||
|
||||
ret= 1;
|
||||
close_stdio:;
|
||||
close(o->stdio_fd); o->stdio_fd= -1;
|
||||
} else if(o->emulation_mode==-1)
|
||||
ret= 0;
|
||||
else
|
||||
ret= burn_random_access_write(d, byte_address, data, data_count, flag);
|
||||
return(ret);
|
||||
}
|
||||
|
||||
|
||||
int burn_read_data(struct burn_drive *d, off_t byte_address,
|
||||
char data[], off_t data_size, off_t *data_count, int flag)
|
||||
{
|
||||
int ret, mode = O_RDONLY | O_LARGEFILE;
|
||||
off_t count, todo;
|
||||
struct isoburn *o;
|
||||
|
||||
ret= isoburn_find_emulator(&o, d, 0);
|
||||
if(ret<0)
|
||||
return(0);
|
||||
if(o->emulation_mode==2) {
|
||||
o->stdio_fd= open(o->stdio_path, mode);
|
||||
if(o->stdio_fd==-1) {
|
||||
|
||||
/* >>> cannot open stdio_path */;
|
||||
return(0);
|
||||
}
|
||||
if(lseek(o->stdio_fd, byte_address, SEEK_SET)==-1) {
|
||||
|
||||
/* >>> cannot reach given byte_address */;
|
||||
ret= 0; goto close_stdio;
|
||||
}
|
||||
for(todo= data_size; todo>0; ) {
|
||||
count= read(o->stdio_fd, data+(data_size-todo), todo);
|
||||
if(count<=0)
|
||||
break;
|
||||
todo-= count;
|
||||
}
|
||||
if(todo>0) {
|
||||
|
||||
/* >>> cannot read desired number of bytes */;
|
||||
ret= 0; goto close_stdio;
|
||||
}
|
||||
ret= 1;
|
||||
close_stdio:;
|
||||
close(o->stdio_fd); o->stdio_fd= -1;
|
||||
} else if(o->emulation_mode==-1)
|
||||
ret= 0;
|
||||
else
|
||||
ret= burn_read_data(d, byte_address, data, data_size, data_count, flag);
|
||||
return(ret);
|
||||
}
|
||||
|
||||
#endif /* NIX */
|
||||
|
||||
|
||||
void isoburn_drive_release(struct burn_drive *drive, int eject)
|
||||
{
|
||||
int ret, no_drive_release= 0;
|
||||
int ret;
|
||||
struct isoburn *o;
|
||||
|
||||
ret= isoburn_find_emulator(&o, drive, 0);
|
||||
|
||||
@ -17,7 +17,10 @@
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <errno.h>
|
||||
#include <unistd.h>
|
||||
|
||||
#include "../libisofs/libisofs.h"
|
||||
#include "../libburn/libburn.h"
|
||||
#include "isoburn.h"
|
||||
|
||||
|
||||
@ -46,6 +49,12 @@ int isoburn_new(struct isoburn **objpt, int flag)
|
||||
o->emulation_mode= 0;
|
||||
o->min_start_byte= 0;
|
||||
o->nwa= 0;
|
||||
|
||||
#ifdef NIX
|
||||
o->stdio_path= NULL;
|
||||
o->stdio_fd= -1;
|
||||
#endif /* NIX */
|
||||
|
||||
o->target_ropts= NULL;
|
||||
o->new_wopts= NULL;
|
||||
for(i=0;i<65536;i++)
|
||||
@ -84,6 +93,13 @@ int isoburn_destroy(struct isoburn **objpt, int flag)
|
||||
|
||||
/* >>> end mutex */
|
||||
|
||||
#ifdef NIX
|
||||
if(o->stdio_path!=NULL)
|
||||
free((char *) o->stdio_path);
|
||||
if(o->stdio_fd!=-1)
|
||||
close(o->stdio_fd);
|
||||
#endif
|
||||
|
||||
if(o->drive!=NULL)
|
||||
burn_drive_release(o->drive, 0);
|
||||
isoburn_free_rwopts(o);
|
||||
@ -120,7 +136,8 @@ int isoburn_get_emulation_mode(struct isoburn *o, int *pt, int flag)
|
||||
}
|
||||
|
||||
|
||||
int isoburn_get_target_volset(struct isoburn *o, struct volset **pt, int flag)
|
||||
int isoburn_get_target_volset(struct isoburn *o, struct iso_volset **pt,
|
||||
int flag)
|
||||
{
|
||||
*pt= o->target_volset;
|
||||
return(1);
|
||||
@ -150,7 +167,7 @@ int isoburn_link(struct isoburn *o, struct isoburn *link, int flag)
|
||||
/* >>> mutex */
|
||||
|
||||
if(isoburn_list_start==NULL ||
|
||||
isoburn_list_start==link && (flag&1))
|
||||
(isoburn_list_start==link && (flag&1)))
|
||||
isoburn_list_start= o;
|
||||
if(o->prev!=NULL)
|
||||
o->prev->next= o->next;
|
||||
|
||||
@ -10,8 +10,6 @@
|
||||
#define Isoburn_includeD
|
||||
|
||||
|
||||
/* <<< as long as no inclusion of libisofs.h */
|
||||
struct volset;
|
||||
|
||||
/* for uint8_t */
|
||||
#include <stdint.h>
|
||||
@ -32,7 +30,7 @@ struct isoburn {
|
||||
|
||||
/* Although rarely used, libburn can operate on several */
|
||||
/* drives simultaneously. */
|
||||
/* >>> I propose to design isoburn as chain link of a list with its
|
||||
/* >>> I propose to design isoburn as chain link of a list with its */
|
||||
/* >>> start stored globally. */
|
||||
struct isoburn *prev;
|
||||
struct isoburn *next;
|
||||
@ -46,6 +44,15 @@ struct isoburn {
|
||||
/* Aligned start address to be used for processing (counted in blocks) */
|
||||
int nwa;
|
||||
|
||||
#ifdef NIX
|
||||
|
||||
/* Path for eventual stdandard i/o (see .emulation_mode) */
|
||||
char *stdio_path;
|
||||
|
||||
/* File descriptor for stdandard i/o. Points to stdio_path object if not -1 */
|
||||
int stdio_fd;
|
||||
|
||||
#endif /* NIX */
|
||||
|
||||
/* --- Vreixo's part --- */
|
||||
|
||||
@ -57,7 +64,7 @@ struct isoburn {
|
||||
uint8_t target_iso_head[65536];
|
||||
|
||||
/* The filesystem structure of the old image from media. */
|
||||
struct volset *target_volset;
|
||||
struct iso_volset *target_volset;
|
||||
|
||||
/* The output options of the current run of libisofs. */
|
||||
/* Element .overwrite eventually points to a buffered new head */
|
||||
@ -77,7 +84,8 @@ int isoburn_destroy(struct isoburn **objpt, int flag);
|
||||
/* Eventual readers for public attributes */
|
||||
/* ( put into separate .h file then ) */
|
||||
int isoburn_get_emulation_mode(struct isoburn *o, int *pt, int flag);
|
||||
int isoburn_get_target_volset(struct isoburn *o, struct volset **pt, int flag);
|
||||
int isoburn_get_target_volset(struct isoburn *o, struct iso_volset **pt,
|
||||
int flag);
|
||||
|
||||
/* List management */
|
||||
int isoburn_get_prev(struct isoburn *o, struct isoburn **pt, int flag);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user