lzma_vli read_file_index(lzma_vli offset) {
void *bdata = NULL;
if (!offset)
offset = find_file_index(&bdata);
if (!offset)
return 0;
while (true) {
char *name = read_file_index_name();
if (!name)
break;
file_index_t *f = malloc(sizeof(file_index_t));
f->name = strlen(name) ? xstrdup(name) : NULL;
f->offset = xle64dec(gFileIndexBuf + gFIBPos);
gFIBPos += sizeof(uint64_t);
if (gLastFile) {
gLastFile->next = f;
} else {
gFileIndex = f;
}
gLastFile = f;
}
free(gFileIndexBuf);
lzma_end(&gStream);
free(bdata);
return offset;
}
struct file_descriptor* open_file( char* path )
{
printf("opening file %s ...\n" , path);
int i;
if( (strlen(path) == 1) && path[0]=='/' )
{
i = 1;
}else{
i = 0;
}
char** dirs = split_string( path , "/" );
printf(" arg_count: %d\n" , arg_count);
int k;
for( k = 0 ; k < arg_count ; k++)
{
printf( " dirs[%d]: %s\n" , k , dirs[k] );
}
int entry_count = 0 , j = 0;
struct dir_table_entry* cur_entries;
struct file_descriptor cur_fd;
struct dir_table_entry* cur_file_entry;
//get root directory file descriptor
cur_fd.pointer = sizeof( struct boot_sec );
int found_file = 0;
while( i < arg_count && !found_file )
{
cur_entries = get_dir_entries( cur_fd );
cur_file_entry = get_file_entry( cur_fd );
//printf("\nretrieved file %s \n" , cur_file_entry->name );
entry_count = cur_file_entry->file_size / (int)sizeof( struct dir_table_entry );
//printf("entry_count: %d\n" , entry_count);
for( j = 0 ; j < entry_count ; j++ )
{
//printf("printing entry[%d]...\n" , j);
cur_file_entry = cur_entries + j;
//printf(" name: %s\n" , cur_file_entry->name );
if( cur_file_entry->allocated )
{
//printf(" looking for file %s...\n" , *(dirs + i) );
if( strcmp( cur_file_entry->name , *(dirs + i) ) == 0 )
{
if( i == (arg_count -1))
found_file = 1;
//printf( " found file!\n");
cur_fd.pointer = find_file_index( cur_fd , cur_file_entry->name );
//printf(" %s fd pointer: %d\n" , cur_file_entry->name , cur_fd.pointer );
/*
struct file_descriptor* ret = (struct file_descriptor*)malloc( sizeof(struct file_descriptor) );
memcpy( ret , &cur_fd , sizeof( struct file_descriptor ) );
return ret;
*/
}
}
}
i++;
}
if( !found_file )
printf("file not found!\n");
struct file_descriptor* ret = (struct file_descriptor*)malloc( sizeof(struct file_descriptor) );
memcpy( ret , &cur_fd , sizeof( struct file_descriptor ) );
return ret;
}
