FHREADLINK(2)             FreeBSD System Calls Manual            FHREADLINK(2)

NAME
     fhreadlink - read value of a symbolic link

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/param.h>
     #include <sys/mount.h>

     int
     fhreadlink(fhandle_t *fhp, char *buf, size_t bufsize);

DESCRIPTION
     The fhreadlink() system call places the contents of the symbolic link fhp
     in the buffer buf, which has size bufsiz.  The fhreadlink() system call
     does not append a NUL character to buf.

RETURN VALUES
     The call returns the count of characters placed in the buffer if it
     succeeds, or a -1 if an error occurs, placing the error code in the
     global variable errno.

ERRORS
     The readlink() system call will fail if:

     [ENOENT]           The named file does not exist.

     [ELOOP]            Too many symbolic links were encountered in
                        translating the file handle fhp.

     [EINVAL]           The named file is not a symbolic link.

     [EIO]              An I/O error occurred while reading from the file
                        system.

     [EINTEGRITY]       Corrupted data was detected while reading from the
                        file system.

     [EFAULT]           The buf argument extends outside the process's
                        allocated address space.

     [ESTALE]           The file handle fhp is no longer valid

SEE ALSO
     fhstat(2), fhlink(2),

FreeBSD 13.1-RELEASE-p6         March 30, 2020         FreeBSD 13.1-RELEASE-p6