static unsigned int readdirectory(struct service_backend *backend, struct service_state *state, void *buffer, unsigned int count, unsigned int offset, unsigned int current, struct cpio_header *header)
{
struct record record;
struct cpio_header *eheader;
char *name;
if (!current)
return 0;
eheader = mapheader(backend, state, current);
if (!eheader)
return 0;
name = mapname(backend, state, eheader, current);
if (!name)
return 0;
record.id = current;
record.size = cpio_filesize(eheader);
record.length = memory_read(record.name, RECORD_NAMESIZE, name, eheader->namesize - 1, header->namesize);
return memory_read(buffer, count, &record, sizeof (struct record), offset);
}
static unsigned int readdirectory(struct service_backend *backend, void *buffer, unsigned int count, unsigned int current, struct cpio_header *header)
{
struct record *record = buffer;
struct cpio_header eheader;
unsigned char name[1024];
if (!current)
return 0;
if (!readheader(backend, &eheader, current))
return 0;
if (!readname(backend, &eheader, current, name, 1024))
return 0;
record->id = current;
record->size = cpio_filesize(&eheader);
record->length = memory_read(record->name, RECORD_NAMESIZE, name, eheader.namesize - 1, header->namesize);
switch (eheader.mode & 0xF000)
{
case 0x4000:
record->length += memory_write(record->name, RECORD_NAMESIZE, "/", 1, record->length);
break;
}
return sizeof (struct record);
}
static unsigned int writefile(struct service_backend *backend, struct service_state *state, void *buffer, unsigned int count, unsigned int offset, unsigned int id, struct cpio_header *header)
{
unsigned int s = cpio_filesize(header) - offset;
unsigned int o = id + cpio_filedata(header) + offset;
return backend->write(state, buffer, (count > s) ? s : count, o);
}
static unsigned int readfile(struct service_backend *backend, void *buffer, unsigned int count, unsigned int offset, unsigned int id, struct cpio_header *header)
{
unsigned int s = cpio_filesize(header) - offset;
unsigned int o = cpio_filedata(header, id) + offset;
return backend->read(buffer, (count > s) ? s : count, o);
}
static unsigned int protocol_map(struct service_backend *backend, struct service_state *state, unsigned int id)
{
struct cpio_header *header = mapheader(backend, state, id);
if (!header)
return 0;
return backend->map(state, id + cpio_filedata(header), cpio_filesize(header));
}
static unsigned long protocol_map(struct service_backend *backend, struct service_state *state)
{
struct cpio_header header;
if (!readheader(backend, &header, state->id))
return 0;
return backend->map(cpio_filedata(&header, state->id), cpio_filesize(&header));
}
