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1、在Linux系统中通过C语言获取硬盘序列号，可以借助于ioctl()函数，该函数原型如下: int ioctl(int fd, unsigned long request, ...);ioctl的第一个参数是文件标识符，用open()函数打开设备时获取。ioctl第二个参数为用于获得指定文件描述符的标志号，获取硬盘序列号，一般指明为HDIO_GET_IDENTITY。ioctl的第三个参数为一些辅助参数，要获哪旁销取硬盘序列号，需要借助于struct hd_driveid结构体来保存硬盘信息 ，该结构体在Linux/hdreg.h中，struct hd_driveid的声明如下李游struct hd_driveid {unsigned short config; / lots of obsolete bit flags */unsigned short cyls; /* Obsolete, "physical" cyls */unsigned short reserved2; /* reserved (word 2) */unsigned short heads; /* Obsolete, "physical" heads */unsigned short track_bytes; /* unformatted bytes per track */unsigned short sector_bytes; /* unformatted bytes per sector */unsigned short sectors; /* Obsolete, "physical" sectors per track */unsigned short vendor0; /* vendor unique */unsigned short vendor1; /* vendor unique */unsigned short vendor2; /* Retired vendor unique */unsigned char serial_no[20]; /* 0 = not_specified */unsigned short buf_type; /* Retired */unsigned short buf_size; /* Retired, 512 byte increments* 0 = not_specified*/……};2、源代码如下 #include //ioctl()的声明头文件#include //硬盘参数头文件， hd_driveid结构声明头文件#include //文件控制头文件#include int main(){ //用于保存系统返回的硬盘数据信息 struct hd_driveid id; //这里以第一块硬盘为例，用户可自行修改 //用open函数打开获取文件标识符，类似于windows下的句柄 int fd = open("/dev/sda", O_RDONLY|O_NONBLOCK); //失败返回 if (fd |