c - 如何寻找到文件结尾以确定文件大小？(how to seek to the end of file to determine the file size?)

Question

I'm trying to get file size in c programming using seek.

(我正在尝试使用seek在c编程中获取文件大小。)

I can't use fseek , stat.size nor ftell , there's a custom operating system UNIX in which I need to run.

(我不能使用fseek ，stat.size或ftell ，我需要在其中运行自定义操作系统UNIX。)

How can I find out filesize just by using seek?

(如何仅通过使用seek找出文件大小？)

Is it possible?

(可能吗？)

  FILE *fd = open(argv[1], "r");

  if(fd == NULL)
  {
    printf("Not able to open the file : %s
", argv[1]);
    return;
  }

  // Set the pointer to the end
  seek(fd, 0, SEEK_END);

  ask by Abhilash Muthuraj translate from so

Answer 1

seek ?

(seek ？)

You mean lseek probably.

(您的意思可能是lseek 。)

Have a look at the manual page .

(看一下手册页 。)

What does lseek return?

(lseek返回什么？)