Reference

fhreadlink(2)

read value of a symbolic link

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 fhreadlink() 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The file handle fhp is no longer valid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

fhlink(2), fhstat(2), readlink(2)

HISTORY

The fhreadlink() system call first appeared in FreeBSD 12.1.

History