/* 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);
}
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);
}