[c-prog] How to lseek the larger file > 2GB under linux

[Nicle]

Hi all,

 I have a file > 2GB, and my job is seeking the file to pos: 2.1G.
But, the lseek doesn't work.
Here is the sample code:

int main()
{
   int fd = -1;
   long long pos = (long long) 2*1024*1024*1024 + 10; // over 2G

   fd = open(FILENAME, O_WRONLY);
   if (fd < 0){
     ...
   }

   if (lseek(fd, pos, SEEK_SET) < 0) {
       fprintf(stderr, "Failed seeking to %lld, %s\n", pos, strerror(errno));
   }

   return 0;
}

 Then the building cmd:
      gcc -o test test.c -D_FILE_OFFSET_BITS=64

  Output:
      Failed seeking to 2147483658, Invalid argument


Best Regards
Nicle Yang