void free_disk_data(disk_info_t *disk_info_list) { disk_info_t *follow_disk, *old_disk; if(!disk_info_list) return; follow_disk = disk_info_list; while (follow_disk) { if(follow_disk->tag) free(follow_disk->tag); if(follow_disk->vendor) free(follow_disk->vendor); if(follow_disk->model) free(follow_disk->model); if(follow_disk->device) free(follow_disk->device); free_partition_data(&(follow_disk->partitions)); old_disk = follow_disk; follow_disk = follow_disk->next; free(old_disk); } }
void free_disk_data(disk_info_t **disk_info_list){ disk_info_t *follow_disk, *old_disk; if(disk_info_list == NULL) return; follow_disk = *disk_info_list; while(follow_disk != NULL){ if(follow_disk->tag != NULL) free(follow_disk->tag); if(follow_disk->vendor != NULL) free(follow_disk->vendor); if(follow_disk->model != NULL) free(follow_disk->model); if(follow_disk->device != NULL) free(follow_disk->device); if(follow_disk->port != NULL) free(follow_disk->port); free_partition_data(&(follow_disk->partitions)); old_disk = follow_disk; follow_disk = follow_disk->next; free(old_disk); } }
int main(int argc, char *argv[]){ disk_info_t *disk_info, *disk_list; partition_info_t *partition_info; char buf[PATH_MAX]; usb_dbg("%d: Using myself to get information:\n", VERSION); if(argc == 3){ get_mount_path("sdb1", buf, PATH_MAX); printf("buf=%s.\n", buf); } else if(argc == 2){ if(is_disk_name(argv[1])){ // Disk usb_dbg("%d: Get disk(%s)'s information:\n", VERSION, argv[1]); create_disk(argv[1], &disk_info); print_disk(disk_info); free_disk_data(&disk_info); } else{ usb_dbg("%d: Get partition(%s)'s information:\n", VERSION, argv[1]); create_partition(argv[1], &partition_info); print_partition(partition_info); free_partition_data(&partition_info); } } else{ usb_dbg("%d: Get all Disk information:\n", VERSION); disk_list = read_disk_data(); print_disks(disk_list); free_disk_data(&disk_list); } return 0; }
partition_info_t *create_partition(const char *device_name, partition_info_t **new_part_info) { partition_info_t *follow_part_info; u32 partition_order; u64 size_in_kilobytes = 0, total_kilobytes = 0, used_kilobytes = 0; char buf1[PATH_MAX], buf2[64], buf3[PATH_MAX]; // options of mount info needs more buffer size. int len; if(new_part_info == NULL) return NULL; *new_part_info = NULL; // initial value. if(device_name == NULL || get_device_type_by_device(device_name) != DEVICE_TYPE_DISK) return NULL; if(!is_disk_name(device_name) && !is_partition_name(device_name, &partition_order)) return NULL; if(initial_part_data(&follow_part_info) == NULL) return NULL; len = strlen(device_name); follow_part_info->device = (char *)malloc(len+1); if(!follow_part_info->device){ free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->device, device_name, len); follow_part_info->device[len] = 0; follow_part_info->partition_order = partition_order; if(read_mount_data(device_name, buf1, buf2, buf3)){ len = strlen(buf1); follow_part_info->mount_point = (char *)malloc(len+1); if(!follow_part_info->mount_point){ free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->mount_point, buf1, len); follow_part_info->mount_point[len] = 0; len = strlen(buf2); follow_part_info->file_system = (char *)malloc(len+1); if(!follow_part_info->file_system){ free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->file_system, buf2, len); follow_part_info->file_system[len] = 0; len = strlen(buf3); follow_part_info->permission = (char *)malloc(len+1); if(!follow_part_info->permission){ free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->permission, buf3, len); follow_part_info->permission[len] = 0; if(get_mount_size(follow_part_info->mount_point, &total_kilobytes, &used_kilobytes)){ follow_part_info->size_in_kilobytes = total_kilobytes; follow_part_info->used_kilobytes = used_kilobytes; } } else{ if(is_disk_name(device_name)){ // Disk free_partition_data(&follow_part_info); return NULL; } else{ len = strlen(PARTITION_TYPE_UNKNOWN); follow_part_info->file_system = (char *)malloc(len+1); if(!follow_part_info->file_system){ free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->file_system, PARTITION_TYPE_UNKNOWN, len); follow_part_info->file_system[len] = 0; get_partition_size(device_name, &size_in_kilobytes); follow_part_info->size_in_kilobytes = size_in_kilobytes; } } *new_part_info = follow_part_info; return *new_part_info; }
disk_info_t *read_disk_data(){ disk_info_t *disk_info_list = NULL, *new_disk_info, **follow_disk_info_list; char *partition_info = read_whole_file(PARTITION_FILE); char *follow_info; char line[64], device_name[16]; u32 major; disk_info_t *parent_disk_info; partition_info_t *new_partition_info, **follow_partition_list; u64 device_size; if(partition_info == NULL){ usb_dbg("Failed to open \"%s\"!!\n", PARTITION_FILE); return disk_info_list; } follow_info = partition_info; memset(device_name, 0, 16); while(get_line_from_buffer(follow_info, line, 64) != NULL){ follow_info += strlen(line); if(sscanf(line, "%u %*u %llu %[^\n ]", &major, &device_size, device_name) != 3) continue; if(major != USB_DISK_MAJOR) continue; if(device_size == 1) // extend partition. continue; if(is_disk_name(device_name)){ // Disk follow_disk_info_list = &disk_info_list; while(*follow_disk_info_list != NULL) follow_disk_info_list = &((*follow_disk_info_list)->next); new_disk_info = create_disk(device_name, follow_disk_info_list); } else if(is_partition_name(device_name, NULL)){ // Partition // Found a partition device. // Find the parent disk. parent_disk_info = disk_info_list; while(1){ if(parent_disk_info == NULL){ usb_dbg("Error while parsing %s: found " "partition '%s' but haven't seen the disk device " "of which it is a part.\n", PARTITION_FILE, device_name); free(partition_info); return disk_info_list; } if(!strncmp(device_name, parent_disk_info->device, 3)) break; parent_disk_info = parent_disk_info->next; } follow_partition_list = &(parent_disk_info->partitions); while(*follow_partition_list != NULL){ if((*follow_partition_list)->partition_order == 0){ free_partition_data(follow_partition_list); parent_disk_info->partitions = NULL; follow_partition_list = &(parent_disk_info->partitions); } else follow_partition_list = &((*follow_partition_list)->next); } new_partition_info = create_partition(device_name, follow_partition_list); if(new_partition_info != NULL) new_partition_info->disk = parent_disk_info; } } free(partition_info); return disk_info_list; }
partition_info_t *create_partition(const char *device_name, partition_info_t **new_part_info){ partition_info_t *follow_part_info; char label[128]; u32 partition_order = 0; u64 size_in_kilobytes = 0, total_kilobytes = 0, used_kilobytes = 0; char buf1[PATH_MAX], buf2[64], buf3[PATH_MAX]; // options of mount info needs more buffer size. int len; if(new_part_info == NULL){ usb_dbg("Bad input!!\n"); return NULL; } *new_part_info = NULL; // initial value. if(device_name == NULL || get_device_type_by_device(device_name) != DEVICE_TYPE_DISK) return NULL; if(!is_disk_name(device_name) && !is_partition_name(device_name, &partition_order)) return NULL; if(initial_part_data(&follow_part_info) == NULL){ usb_dbg("No memory!!(follow_part_info)\n"); return NULL; } len = strlen(device_name); follow_part_info->device = (char *)malloc(len+1); if(follow_part_info->device == NULL){ usb_dbg("No memory!!(follow_part_info->device)\n"); free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->device, device_name, len); follow_part_info->device[len] = 0; if(find_partition_label(device_name, label)){ strntrim(label); len = strlen(label); follow_part_info->label = (char *)malloc(len+1); if(follow_part_info->label == NULL){ usb_dbg("No memory!!(follow_part_info->label)\n"); free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->label, label, len); follow_part_info->label[len] = 0; } follow_part_info->partition_order = partition_order; if(read_mount_data(device_name, buf1, PATH_MAX, buf2, 64, buf3, PATH_MAX)){ len = strlen(buf1); follow_part_info->mount_point = (char *)malloc(len+1); if(follow_part_info->mount_point == NULL){ usb_dbg("No memory!!(follow_part_info->mount_point)\n"); free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->mount_point, buf1, len); follow_part_info->mount_point[len] = 0; len = strlen(buf2); follow_part_info->file_system = (char *)malloc(len+1); if(follow_part_info->file_system == NULL){ usb_dbg("No memory!!(follow_part_info->file_system)\n"); free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->file_system, buf2, len); follow_part_info->file_system[len] = 0; len = strlen(buf3); follow_part_info->permission = (char *)malloc(len+1); if(follow_part_info->permission == NULL){ usb_dbg("No memory!!(follow_part_info->permission)\n"); free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->permission, buf3, len); follow_part_info->permission[len] = 0; if(get_mount_size(follow_part_info->mount_point, &total_kilobytes, &used_kilobytes)){ follow_part_info->size_in_kilobytes = total_kilobytes; follow_part_info->used_kilobytes = used_kilobytes; } } else{ /*if(is_disk_name(device_name)){ // Disk free_partition_data(&follow_part_info); return NULL; } else{//*/ len = strlen(PARTITION_TYPE_UNKNOWN); follow_part_info->file_system = (char *)malloc(len+1); if(follow_part_info->file_system == NULL){ usb_dbg("No memory!!(follow_part_info->file_system)\n"); free_partition_data(&follow_part_info); return NULL; } strncpy(follow_part_info->file_system, PARTITION_TYPE_UNKNOWN, len); follow_part_info->file_system[len] = 0; get_partition_size(device_name, &size_in_kilobytes); follow_part_info->size_in_kilobytes = size_in_kilobytes; //} } *new_part_info = follow_part_info; return *new_part_info; }