readlink(2)

NAME
     readlink - read value of a symbolic link

SYNOPSIS
     #include <sys/types.h>
     #include <unistd.h>

     int readlink(const char *path, char *buf, int bufsiz)

DESCRIPTION
     Readlink places the contents of the symbolic link name in the buffer buf,
     which  has size bufsiz.  The contents of the link are not null terminated
     when returned.

RETURN VALUE
     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
     Readlink will fail and the file mode will be unchanged if:

     [ENOTDIR]      A component of the path prefix is not a directory.

     [ENAMETOOLONG] The path name exceeds PATH_MAX characters.

     [ENOENT]       The named file does not exist.

     [EACCES]       Search permission is denied for a component  of  the  path
                    prefix.

     [ELOOP]        Too many symbolic links were  encountered  in  translating
                    the pathname.  (Minix-vmd)

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

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

     [EFAULT]       Buf extends outside the process's allocated address space.

SEE ALSO
     stat(2), lstat(2), symlink(2).