Open System Services System Calls Reference Manual (G06.25+, H06.03+)

Miscellaneous errno(5)
[ENETUNREACH]
Network unreachable. No path exists between the node and the network.
[ENFILE] File table overflow. Too many files are currently open in the system. The system
has reached its predefined limit for simultaneously open files and temporarily
cannot accept requests to open another one.
[ENOBUFS] Buffer space unavailable. No buffer space is available.
[ENOCPU] CPU unavailable. The program selected a processor that either does not exist, is
down, or is unavailable for process creation.
[ENOCRE] Non-CRE process needs CRE-dependent service. The process is not compliant
with the Common Run-Time Environment (CRE) but requested a service that
depends on CRE.
[ENODATA] No data sent or received. No message or stream queue exists, or no data was sent
or received.
[ENODEV] No such device. The program attempted to apply an inappropriate function to a
device; for example, trying to read a write-only device, such as a printer.
[ENOENT] No such file, directory, or socket transport provider. A component of a specified
pathname does not exist, the pathname is an empty string, a specified provider is
no longer running, or a specified provider does not exist.
[ENOERR] No error occurred. This is the default value for errno.
[ENOEXEC] Executable program file format error. A request was made to execute a program
file that, although it has the appropriate permissions, is not in the format required
by the implementation for executable files.
[ENOIMEM] Insufficient internal memory. There is insufficient system code space in the pro-
cessor to complete the operation.
[ENOLCK] No record locks available. A system-imposed limit on the number of simultane-
ous file and record locks has been reached, and no more are currently available.
[ENOMEM] Insufficient user memory. The new process image requires more memory than is
allowed by the hardware or system-imposed memory management constraints.
[ENOMSG] No message. There is no message of the requested type.
[ENONSTOP] NonStop programming logic error exists. The program is written to use NonStop
system features but has requested an operation incompatible with correct use of
those features.
[ENOPROTOOPT]
Protocol not available. The requested protocol is not available.
[ENOREPLY] No reply in buffer. There is no reply in the message buffer.
[ENOROOT] Root fileset is not started. The program attempted an operation while the root
fileset (fileset 0) was unavailable.
This error can occur after failure and restart of an OSS name server until the
fileset has been repaired and remounted.
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