刚装的Redhat linux 9.0内核2.4.20,关于补丁的问题

刚装的Redhat 9.0 内核是2.4.20 ,想系统支持蓝牙,但是用windows上网下载补丁时,显示下载的是一个text页面,里面显示全是一些代码!如:我要下载的是patch-2.4.20-mh18.gz文件,地址是http://www.holtmann.org/linux/kernel/patch-2.4.20-mh18.gz但是用IE打开的是:
diff -urN linux-2.4.20/arch/sparc64/kernel/ioctl32.c linux-2.4.20-mh18/arch/sparc64/kernel/ioctl32.c --- linux-2.4.20/arch/sparc64/kernel/ioctl32.c 2002-11-29 00:53:12.000000000 +0100 +++ linux-2.4.20-mh18/arch/sparc64/kernel/ioctl32.c 2004-08-01 16:31:28.000000000 +0200 @@ -95,6 +95,7 @@ #include #include +#include #include #include @@ -4286,6 +4287,25 @@ return sys_ioctl(fd, BLKGETSIZE64, arg); } +/* Bluetooth ioctls */ +#define HCIUARTSETPROTO _IOW('U', 200, int) +#define HCIUARTGETPROTO _IOR('U', 201, int) + +#define BNEPCONNADD _IOW('B', 200, int) +#define BNEPCONNDEL _IOW('B', 201, int) +#define BNEPGETCONNLIST _IOR('B', 210, int) +#define BNEPGETCONNINFO _IOR('B', 211, int) + +#define CMTPCONNADD _IOW('C', 200, int) +#define CMTPCONNDEL _IOW('C', 201, int) +#define CMTPGETCONNLIST _IOR('C', 210, int) +#define CMTPGETCONNINFO _IOR('C', 211, int) + +#define HIDPCONNADD _IOW('H', 200, int) +#define HIDPCONNDEL _IOW('H', 201, int) +#define HIDPGETCONNLIST _IOR('H', 210, int) +#define HIDPGETCONNINFO _IOR('H', 211, int) + struct ioctl_trans { unsigned int cmd; unsigned int handler; @@ -4987,6 +5007,25 @@.............
请问这是什么原因啊?如果直接用工具下载的文件的体积要比主页上标的大好几倍,而且还解压错误...真是搞不懂!
谢谢回答!