NAME

       dpns_readlink - read value of a symbolic link in the DPNS Name Server

SYNOPSIS

       #include <sys/types.h>
       #include "dpns_api.h"

       int dpns_readlink (const char *path, char *buf, size_t bufsiz)

DESCRIPTION

       dpns_readlink reads the value of a symbolic link in the DPNS Name Server.

       path   specifies the link name relative to the current DPNS directory or the full DPNS pathname.

       buf    points at a buffer to receive the value.

       bufsiz gives the buffer size.

RETURN VALUE

       This  routine returns the number of characters put in the buffer if the operation was successful or -1 if
       the operation failed. In the latter case, serrno is set appropriately.

ERRORS

       ENOENT       The named link does not exist or is a null pathname.

       EACCES       Search permission is denied on a component of the path prefix.

       EFAULT       path or buf is a NULL pointer.

       ENOTDIR      A component of path prefix is not a directory.

       EINVAL       path is not a symbolic link.

       ENAMETOOLONG The length of path  exceeds  CA_MAXPATHLEN  or  the  length  of  a  path  component  exceeds
                    CA_MAXNAMELEN.

       SENOSHOST    Host unknown.

       SENOSSERV    Service unknown.

       SECOMERR     Communication error.

       ENSNACT      Name server is not running or is being shutdown.

SEE ALSO

       Castor_limits(4), dpns_chdir(3), dpns_stat(3), dpns_statg(3), dpns_symlink(3)

AUTHOR

       LCG Grid Deployment Team