Errno Values for UNIX-Type Functions

Programs using the UNIX-type functions may receive error information as errno values. The possible values returned are listed here in ascending errno value sequence.

Figure 1-1. Errno Values

Name	Value	Text
EDOM	3001	Domain error in math function
ERANGE	3002	Range error in math function
ETRUNC	3003	Truncation on I/O operation
ENOTOPEN	3004	File has not been opened
ENOTREAD	3005	File not opened for read
EIO	3006	Input/output error
ENODEV	3007	No such device
ERECIO	3008	File opened for record I/O
ENOTWRITE	3009	File not opened for write
ESTDIN	3010	Stdin cannot be opened
ESTDOUT	3011	Stdout cannot be opened
ESTDERR	3012	Stderr cannot be opened
EBADSEEK	3013	The positioning parameter in fseek is not correct
EBADNAME	3014	Invalid file name specified
EBADMODE	3015	Invalid file mode specified
EBADPOS	3017	Invalid position specifier
ENOPOS	3018	No record at specified position
ENUMMBRS	3019	No ftell if more than 1 member
ENUMRECS	3020	No ftell if too many records
EINVAL	3021	Invalid argument
EBADFUNC	3022	Invalid function pointer
ENOENT	3025	No such file or library
ENOREC	3026	Record not found
EPERM	3027	Operation not permitted
EBADDATA	3028	Message data invalid
EBUSY	3029	Resource busy
EBADOPT	3040	Bad option on I/O function
ENOTUPD	3041	File not opened for update
ENOTDLT	3042	File not opened for delete
EPAD	3043	Padding occurred on write operation
EBADKEYLN	3044	Bad key length option
EPUTANDGET	3080	Illegal write after read
EGETANDPUT	3081	Illegal read after write
EIOERROR	3101	I/O exception non-recoverable error
EIORECERR	3102	I/O exception recoverable error
EACCES	3401	Permission denied
ENOTDIR	3403	Not a directory
ENOSPC	3404	No space available
EXDEV	3405	Improper link
EWOULDBLOCK	3406	Operation would have caused the process to be suspended
EAGAIN	3406	Operation would have caused the process to be suspended
EINTR	3407	Interrupted function call
EFAULT	3408	The address used for an argument was not correct
ENXIO	3415	No such device or address
EADDRINUSE	3420	Address already in use
EADDRNOTAVAIL	3421	Address not available
EAFNOSUPPORT	3422	The type of socket is not supported in this protocol family
EALREADY	3423	Operation already in progress
ECONNABORTED	3424	Connection ended abnormally
ECONNREFUSED	3425	A remote host refused an attempted connect operation
ECONNRESET	3426	A connection with a remote socket was reset by that socket
EDESTADDRREQ	3427	Operation requires destination address
EHOSTDOWN	3428	A remote host is not available
EHOSTUNREACH	3429	A route to the remote host is not available
EINPROGRESS	3430	Operation in progress
EISCONN	3431	A connection has already been established
EMSGSIZE	3432	Message size out of range
ENETDOWN	3433	The network is not currently available
ENETRESET	3434	A socket is connected to a host that is no longer available
ENETUNREACH	3435	Cannot reach the destination network
ENOBUFS	3436	There is not enough buffer space for the requested operation
ENOPROTOOPT	3437	The protocol does not support the specified option
ENOTCONN	3438	Requested operation requires a connection
ENOTSOCK	3439	The specified descriptor does not reference a socket
ENOTSUP	3440	Operation not supported
EOPNOTSUPP	3440	Operation not supported
EPFNOSUPPORT	3441	The socket protocol family is not supported
EPROTONOSUPPORT	3442	No protocol of the specified type and domain exists
EPROTOTYPE	3443	The socket type or protocols are not compatible
ERCVDERR	3444	An error indication was sent by the peer program
ESHUTDOWN	3445	Cannot send data after a shutdown
ESOCKTNOSUPPORT	3446	The specified socket type is not supported
ETIMEDOUT	3447	A remote host did not respond within the timeout period
EUNATCH	3448	The protocol required to support the specified address family is not available at this time
EBADF	3450	Descriptor not valid
EMFILE	3452	Too many open files for this process
ENFILE	3453	Too many open files in the system
EPIPE	3455	Broken pipe
EEXIST	3457	File exists
EDEADLK	3459	Resource deadlock avoided
ENOMEM	3460	Storage allocation request failed
EOWNERTERM	3462	The synchronization object no longer exists because the owner is no longer running
EDESTROYED	3463	The synchronization object was destroyed or the object no longer exists
ETERM	3464	Operation terminated
EMLINK	3468	Maximum link count for a file was exceeded
ESPIPE	3469	Seek request not supported for object
ENOSYS	3470	Function not implemented
EISDIR	3471	Specified target is a directory
EROFS	3472	Read-only file system
EUNKNOWN	3474	Unknown system state
EITERBAD	3475	Iterator is invalid
EDAMAGE	3484	A damaged object was encountered
ELOOP	3485	A loop exists in the symbolic links
ENAMETOOLONG	3486	A path name is too long
ENOLCK	3487	No locks available
ENOTEMPTY	3488	Directory not empty
ENOSYSRSC	3489	System resources not available to complete request
ECONVERT	3490	Conversion error
E2BIG	3491	Argument list too long
EILSEQ	3492	Conversion stopped due to input character that does not belong to input codeset
ESOFTDAMAGE	3497	Object has soft damage
ENOTENROLL	3498	User not enrolled in system distribution directory
EOFFLINE	3499	Object is suspended
EROOBJ	3500	Object is a read only object
ELOCKED	3506	Area being read from or written to is locked
EFBIG	3507	Object too large
EIDRM	3509	The semaphore, shared memory, or message queue identifier is removed from the system
ENOMSG	3510	The queue does not contain a message of the desired type
EFILECVT	3511	File ID conversion of a directory failed
EBADFID	3512	A file ID could not be assigned when linking an object to a directory
ESRCH	3515	No such process
ENOTSIGINIT	3516	Process not enabled for signals
ECHILD	3517	No child process
ETOOMANYREFS	3523	The operation would have exceeded the maximum number of references allowed for a descriptor
ENOTSAFE	3524	Function not allowed
EOVERFLOW	3525	Object is too large to process
EJRNDAMAGE	3526	Journal damaged
EJRNINACTIVE	3527	Journal inactive
EJRNRCVSPC	3528	Journal space or system storage error
EJRNRMT	3529	Journal is remote
ENEWJRNRCV	3530	New journal receiver is needed
ENEWJRN	3531	New journal is needed
EJOURNALED	3532	Object already journaled
EJRNENTTOOLONG	3533	Entry too large to send
EDATALINK	3534	Object is a datalink object