Ejemplo n.º 1
0
/* Put the label in *label and uuid in *uuid.
 * Return 0 if no label/uuid found, NZ if there is a label or uuid.
 */
int find_label_or_uuid(char *dev_name, char *label, char *uuid)
{
	struct volume_id id;

	memset(&id, 0x00, sizeof(id));
	if (label) *label = 0;
	if (uuid) *uuid = 0;
	if ((id.fd = open(dev_name, O_RDONLY)) < 0)
		return 0;

	volume_id_get_buffer(&id, 0, SB_BUFFER_SIZE);

	if (volume_id_probe_linux_swap(&id) == 0 || id.error)
		goto ret;
	if (volume_id_probe_vfat(&id) == 0 || id.error)
		goto ret;
	if (volume_id_probe_ext(&id) == 0 || id.error)
		goto ret;
	if (volume_id_probe_ntfs(&id) == 0 || id.error)
		goto ret;
#if defined(RTCONFIG_HFS)
	if(volume_id_probe_hfs_hfsplus(&id) == 0 || id.error)
		goto ret;
#endif
ret:
	volume_id_free_buffer(&id);
	if (label && (*id.label != 0))
		strcpy(label, id.label);
	if (uuid && (*id.uuid != 0))
		strcpy(uuid, id.uuid);
	close(id.fd);
	return (label && *label != 0) || (uuid && *uuid != 0);
}
Ejemplo n.º 2
0
int find_partition_label(const char *dev_name, char *label, int partition_order) {
    struct volume_id id;
    char dev_path[128];
    char usb_port[8];
    int port_num;
    char nvram_label[32], nvram_value[512];

    if(label) *label = 0;

    memset(usb_port, 0, 8);
    if(get_usb_port_by_device(dev_name, usb_port, 8) == NULL)
        return 0;
    port_num = get_usb_port_number(usb_port);

    memset(nvram_label, 0, 32);
    sprintf(nvram_label, "usb_path%d_label%d", port_num, partition_order);

    memset(nvram_value, 0, 512);
    strncpy(nvram_value, nvram_safe_get(nvram_label), 512);
    if(strlen(nvram_value) > 0) {
        strcpy(label, nvram_value);

        return (label && *label != 0);
    }

    memset(dev_path, 0, 128);
    sprintf(dev_path, "/dev/%s", dev_name);

    memset(&id, 0x00, sizeof(id));
    if((id.fd = open(dev_path, O_RDONLY)) < 0)
        return 0;

    volume_id_get_buffer(&id, 0, SB_BUFFER_SIZE);

    if(volume_id_probe_linux_swap(&id) == 0 || id.error)
        goto ret;
    if(volume_id_probe_ext(&id) == 0 || id.error)
        goto ret;
    if(volume_id_probe_vfat(&id) == 0 || id.error)
        goto ret;
    if(volume_id_probe_ntfs(&id) == 0 || id.error)
        goto ret;
    if(volume_id_probe_hfs_hfsplus(&id) == 0 || id.error)
        goto ret;
ret:
    volume_id_free_buffer(&id);
    if(label && (*id.label != 0))
        strcpy(label, id.label);
    else
        strcpy(label, " ");
    nvram_set(nvram_label, label);
    close(id.fd);
    return (label && *label != 0);
}