#include <unistd.h> int
readlink (const char *path char *buf int bufsiz);
DESCRIPTION
The
readlink ();
system call
places the contents of the symbolic link
Fa path
in the buffer
Fa buf ,
which has size
Fa bufsiz .
The
readlink ();
system call does not append a
NUL
character to
Fa 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:
Bq Er ENOTDIR
A component of the path prefix is not a directory.
Bq Er ENAMETOOLONG
A component of a pathname exceeded 255 characters,
or an entire path name exceeded 1023 characters.
Bq Er ENOENT
The named file does not exist.
Bq Er EACCES
Search permission is denied for a component of the path prefix.
Bq Er ELOOP
Too many symbolic links were encountered in translating the pathname.
Bq Er EINVAL
The named file is not a symbolic link.
Bq Er EIO
An I/O error occurred while reading from the file system.
Bq Er EFAULT
The
Fa buf
argument
extends outside the process's allocated address space.
