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/*
* /packages/iso9660-files filesystem handler
*
* (c) 2009 Laurent Vivier <Laurent@vivier.eu>
* (c) 2010 Mark Cave-Ayland <mark.cave-ayland@siriusit.co.uk>
*/
#include "config.h"
#include "libopenbios/bindings.h"
#include "libiso9660.h"
#include "fs/fs.h"
#include "libc/vsprintf.h"
#include "libc/diskio.h"
extern void iso9660_init( void );
typedef struct {
enum { FILE, DIR } type;
union {
iso9660_FILE *file;
iso9660_DIR * dir;
};
} iso9660_COMMON;
typedef struct {
iso9660_VOLUME *volume;
iso9660_COMMON *common;
} iso9660_info_t;
DECLARE_NODE( iso9660, 0, sizeof(iso9660_info_t), "+/packages/iso9660-files" );
/* ( -- success? ) */
static void
iso9660_files_open( iso9660_info_t *mi )
{
int fd;
char *path = my_args_copy();
if ( ! path )
RET( 0 );
fd = open_ih( my_parent() );
if ( fd == -1 ) {
free( path );
RET( 0 );
}
mi->volume = iso9660_mount( fd );
if ( mi->volume == NULL ) {
free( path );
close_io( fd );
RET( 0 );
}
mi->common->dir = iso9660_opendir( mi->volume, path );
if ( mi->common->dir == NULL ) {
mi->common->file = iso9660_open( mi->volume, path );
if (mi->common->file == NULL) {
iso9660_umount( mi->volume );
close_io( fd );
free( path );
RET( 0 );
}
mi->common->type = FILE;
free( path );
RET( -1 );
}
mi->common->type = DIR;
free( path );
RET( -1 );
}
/* ( -- ) */
static void
iso9660_files_close( iso9660_info_t *mi )
{
int fd = mi->volume->fd;
if (mi->common->type == FILE )
iso9660_close( mi->common->file );
else if ( mi->common->type == DIR )
iso9660_closedir( mi->common->dir );
iso9660_umount( mi->volume );
close_io( fd );
}
/* ( buf len -- actlen ) */
static void
iso9660_files_read( iso9660_info_t *mi )
{
int count = POP();
char *buf = (char *)cell2pointer(POP());
int ret;
if ( mi->common->type != FILE )
PUSH( 0 );
ret = iso9660_read( mi->common->file, buf, count );
PUSH( ret );
}
/* ( pos.d -- status ) */
static void
iso9660_files_seek( iso9660_info_t *mi )
{
long long pos = DPOP();
cell ret;
int offs = (int)pos;
int whence = SEEK_SET;
if (mi->common->type != FILE)
PUSH( -1 );
if( offs == -1 ) {
offs = 0;
whence = SEEK_END;
}
ret = iso9660_lseek(mi->common->file, offs, whence);
PUSH( (ret < 0)? -1 : 0 );
}
/* ( -- filepos.d ) */
static void
iso9660_files_offset( iso9660_info_t *mi )
{
if ( mi->common->type != FILE )
DPUSH( -1 );
DPUSH( mi->common->file->offset );
}
/* ( addr -- size ) */
static void
iso9660_files_load( iso9660_info_t *mi)
{
char *buf = (char*)cell2pointer(POP());
int ret, size;
if ( mi->common->type != FILE )
PUSH( 0 );
size = 0;
while(1) {
ret = iso9660_read( mi->common->file, buf, 512 );
if (ret <= 0)
break;
buf += ret;
size += ret;
if (ret != 512)
break;
}
PUSH( size );
}
/* static method, ( pathstr len ihandle -- ) */
static void
iso9660_files_dir( iso9660_info_t *dummy )
{
iso9660_VOLUME *volume;
iso9660_COMMON *common;
struct iso_directory_record *idr;
char name_buf[256];
int fd;
ihandle_t ih = POP();
char *path = pop_fstr_copy();
fd = open_ih( ih );
if ( fd == -1 ) {
free( path );
return;
}
volume = iso9660_mount( fd );
if ( volume == NULL ) {
free ( path );
close_io( fd );
return;
}
common = malloc(sizeof(iso9660_COMMON));
common->dir = iso9660_opendir( volume, path );
forth_printf("\n");
while ( (idr = iso9660_readdir(common->dir)) ) {
forth_printf("% 10d ", isonum_733(idr->size));
forth_printf("%d-%02d-%02d %02d:%02d:%02d ",
idr->date[0] + 1900, /* year */
idr->date[1], /* month */
idr->date[2], /* day */
idr->date[3], idr->date[4], idr->date[5]);
iso9660_name(common->dir->volume, idr, name_buf);
if (idr->flags[0] & 2)
forth_printf("%s\\\n", name_buf);
else
forth_printf("%s\n", name_buf);
}
iso9660_closedir( common->dir );
iso9660_umount( volume );
close_io( fd );
free( common );
free( path );
}
/* static method, ( pos.d ih -- flag? ) */
static void
iso9660_files_probe( iso9660_info_t *dummy )
{
ihandle_t ih = POP_ih();
long long offs = DPOP();
int fd, ret = 0;
fd = open_ih(ih);
if (fd >= 0) {
if (iso9660_probe(fd, offs)) {
ret = -1;
}
close_io(fd);
} else {
ret = -1;
}
RET (ret);
}
static void
iso9660_files_block_size( iso9660_info_t *dummy )
{
PUSH(2048);
}
static void
iso9660_initializer( iso9660_info_t *dummy )
{
fword("register-fs-package");
}
NODE_METHODS( iso9660 ) = {
{ "probe", iso9660_files_probe },
{ "open", iso9660_files_open },
{ "close", iso9660_files_close },
{ "read", iso9660_files_read },
{ "seek", iso9660_files_seek },
{ "offset", iso9660_files_offset },
{ "load", iso9660_files_load },
{ "dir", iso9660_files_dir },
{ "block-size", iso9660_files_block_size },
{ NULL, iso9660_initializer },
};
void
iso9660_init( void )
{
REGISTER_NODE( iso9660 );
}
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