filelength of file descriptor?

Im seeing g++ does not have a filelength function like Borland? So I wrote my own. My function always seems to return 5 greater than the value I need...

Code:

---

long filelength(int fd)
{
    long pos = lseek(fd, 0, SEEK_CUR);
    long end = lseek(fd, 0, SEEK_END);
    lseek(fd, pos, SEEK_SET);
    return (end);
}

---

-- deleted -- wrong code.

Try something like:

Code:

---

long filelength(int fd)
{
    long pos = tell(fd);
    lseek(fd, 0, SEEK_END);
    long end = tell(fd);
    lseek(fd, pos, SEEK_SET);
    return (end);
}

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