Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

System Functions (u) unlink(2)
[ELOOP] Too many symbolic links were encountered in translating path.
[ENAMETOOLONG]
One of the following is too long:
The pathname pointed to by the path parameter
A component of the pathname pointed to by the path parameter
The intermediate result of pathname resolution when a symbolic link is
part of the path parameter
The pathconf( ) function can be called to obtain the applicable limits.
[ENOENT] One of the following conditions exists:
The named file does not exist.
The path parameter points to an empty string.
The path parameter specifies a file on a remote HP NonStop node but
communication with the remote node has been lost.
[ENOROOT] One of the following conditions exists:
The root fileset of the local node (fileset 0) is not in the STARTED state.
The current root fileset for the specified file is unavailable. The OSS
name server for the fileset might have failed.
The specified file is on a remote HP NonStop node and communication
with the remote name server has been lost.
[ENOTDIR] A component of the pathname prefix is not a directory.
[ENOTSUP] The path parameter specifies a Guardian file on an SMF logical volume and one
of the following conditions exists:
The local system is running an RVU prior to J06.15 or H06.26.
The path parameter specifies a file in /E and the remote system is run-
ning an RVU prior to J06.15 or H06.26.
[ENXIO] The fileset containing the client’s current working directory or root directory is
not mounted.
[EOSSNOTRUNNING]
The OSS monitor process is not running.
[EPERM] One of the following conditions exists:
The named file is a directory.
The named file is a Guardian file (in /G), but it is not a regular file.
The program attempted an operation on a SEEP-protected fileset. Valid
for J06.15 and later J-series RVUs, and H06.26 and later H-series RVUs.
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