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