.\" Copyright (c) 1983 Regents of the University of California.
.\" All rights reserved. The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\" @(#)readlink.2 6.4 (Berkeley) %G%
readlink \- read value of a symbolic link
cc = readlink(path, buf, bufsiz)
places the contents of the symbolic link
The contents of the link are not null terminated when returned.
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 \fIerrno\fP.
will fail and the file mode will be unchanged if:
A component of the path prefix is not a directory.
The pathname contains a character with the high-order bit set.
A component of a pathname exceeded 255 characters,
or an entire path name exceeded 1023 characters.
The named file does not exist.
Search permission is denied for a component of the path prefix.
Too many symbolic links were encountered in translating the pathname.
The named file is not a symbolic link.
An I/O error occurred while reading from the file system.
extends outside the process's allocated address space.
stat(2), lstat(2), symlink(2)