dpns_readlink3
Read value of a symbolic link in the dpns name server
Usage
#include <sys/types.h>
#include "dpns_api.h"
int dpns_readlink (const char *path, char *buf, size_t bufsiz)
Overview
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_MAXPATHLENor the length of a path component exceedsCA_MAXNAMELEN.
- SENOSHOST
-
Host unknown.
- SENOSSERV
-
Service unknown.
- SECOMERR
-
Communication error.
- ENSNACT
-
Name server is not running or is being shutdown.
Releases
Unchanged in 5 releases since Debian 6.0 (Squeeze).