linux c读取硬盘序列号

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main() {
    FILE *fp;
    char path[256];
    char serial[64];

    // 假设硬盘设备名为sda，实际情况可能需要遍历/sys/block目录来确定
    snprintf(path, sizeof(path), "/sys/block/sda/device/serial");

    fp = fopen(path, "r");
    if (fp == NULL) {
        perror("Failed to open serial file");
        return EXIT_FAILURE;
    }

    if (fgets(serial, sizeof(serial), fp) != NULL) {
        // 移除可能的换行符
        serial[strcspn(serial, "
")] = 0;
        printf("Serial Number: %s
", serial);
    } else {
        perror("Failed to read serial number");
    }

    fclose(fp);
    return EXIT_SUCCESS;
}

#include <libudev.h>
#include <stdio.h>

int main(void) {
    struct udev *udev;
    struct udev_enumerate *enumerate;
    struct udev_list_entry *devices, *dev_list_entry;
    struct udev_device *dev;

    // 创建udev上下文
    udev = udev_new();
    if (!udev) {
        printf("Can't create udev
");
        return 1;
    }

    // 创建枚举对象
    enumerate = udev_enumerate_new(udev);
    udev_enumerate_add_match_subsystem(enumerate, "block");
    udev_enumerate_scan_devices(enumerate);

    // 获取设备列表
    devices = udev_enumerate_get_list_entry(enumerate);
    udev_list_entry_foreach(dev_list_entry, devices) {
        const char *path = udev_list_entry_get_name(dev_list_entry);
        dev = udev_device_new_from_syspath(udev, path);

        const char *serial = udev_device_get_property_value(dev, "ID_SERIAL_SHORT");
        if (serial) {
            printf("Serial Number: %s
", serial);
        } else {
            printf("Serial number not found
");
        }

        udev_device_unref(dev);
    }

    // 清理
    udev_enumerate_unref(enumerate);
    udev_unref(udev);

    return 0;
}