Errno

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Overview

errno 내용 정리

List

E2BIG           Argument list too long (POSIX.1)

EACCES          Permission denied (POSIX.1)

EADDRINUSE      Address already in use (POSIX.1)

EADDRNOTAVAIL   Address not available (POSIX.1)

EAFNOSUPPORT    Address family not supported (POSIX.1)

EAGAIN          Resource temporarily unavailable (may be the same
                value as EWOULDBLOCK) (POSIX.1)

EALREADY        Connection already in progress (POSIX.1)

EBADE           Invalid exchange

EBADF           Bad file descriptor (POSIX.1)

EBADFD          File descriptor in bad state

EBADMSG         Bad message (POSIX.1)

EBADR           Invalid request descriptor

EBADRQC         Invalid request code

EBADSLT         Invalid slot

EBUSY           Device or resource busy (POSIX.1)

ECANCELED       Operation canceled (POSIX.1)

ECHILD          No child processes (POSIX.1)

ECHRNG          Channel number out of range

ECOMM           Communication error on send

ECONNABORTED    Connection aborted (POSIX.1)

ECONNREFUSED    Connection refused (POSIX.1)

ECONNRESET      Connection reset (POSIX.1)

EDEADLK         Resource deadlock avoided (POSIX.1)

EDEADLOCK       Synonym for EDEADLK

EDESTADDRREQ    Destination address required (POSIX.1)

EDOM            Mathematics argument out of domain of function
                (POSIX.1, C99)

EDQUOT          Disk quota exceeded (POSIX.1)

EEXIST          File exists (POSIX.1)

EFAULT          Bad address (POSIX.1)

EFBIG           File too large (POSIX.1)

EHOSTDOWN       Host is down

EHOSTUNREACH    Host is unreachable (POSIX.1)

EIDRM           Identifier removed (POSIX.1)

EILSEQ          Illegal byte sequence (POSIX.1, C99)

EINPROGRESS     Operation in progress (POSIX.1)

EINTR           Interrupted function call (POSIX.1); see signal(7).

EINVAL          Invalid argument (POSIX.1)

EIO             Input/output error (POSIX.1)

EISCONN         Socket is connected (POSIX.1)

EISDIR          Is a directory (POSIX.1)

EISNAM          Is a named type file

EKEYEXPIRED     Key has expired

EKEYREJECTED    Key was rejected by service

EKEYREVOKED     Key has been revoked

EL2HLT          Level 2 halted

EL2NSYNC        Level 2 not synchronized

EL3HLT          Level 3 halted

EL3RST          Level 3 halted

ELIBACC         Cannot access a needed shared library

ELIBBAD         Accessing a corrupted shared library

ELIBMAX         Attempting to link in too many shared libraries

ELIBSCN         lib section in a.out corrupted

ELIBEXEC        Cannot exec a shared library directly

ELOOP           Too many levels of symbolic links (POSIX.1)

EMEDIUMTYPE     Wrong medium type

EMFILE          Too many open files (POSIX.1); commonly caused by
                exceeding the RLIMIT_NOFILE resource limit described
                in getrlimit(2)

EMLINK          Too many links (POSIX.1)

EMSGSIZE        Message too long (POSIX.1)

EMULTIHOP       Multihop attempted (POSIX.1)

ENAMETOOLONG    Filename too long (POSIX.1)

ENETDOWN        Network is down (POSIX.1)

ENETRESET       Connection aborted by network (POSIX.1)

ENETUNREACH     Network unreachable (POSIX.1)

ENFILE          Too many open files in system (POSIX.1); on Linux,
                this is probably a result of encountering the
                /proc/sys/fs/file-max limit (see proc(5)).

ENOBUFS         No buffer space available (POSIX.1 (XSI STREAMS
                option))

ENODATA         No message is available on the STREAM head read queue
                (POSIX.1)

ENODEV          No such device (POSIX.1)

ENOENT          No such file or directory (POSIX.1)

                Typically, this error results when a specified
                pathname does not exist, or one of the components in
                the directory prefix of a pathname does not exist, or
                the specified pathname is a dangling symbolic link.

ENOEXEC         Exec format error (POSIX.1)

ENOKEY          Required key not available

ENOLCK          No locks available (POSIX.1)

ENOLINK         Link has been severed (POSIX.1)

ENOMEDIUM       No medium found

ENOMEM          Not enough space (POSIX.1)

ENOMSG          No message of the desired type (POSIX.1)

ENONET          Machine is not on the network

ENOPKG          Package not installed

ENOPROTOOPT     Protocol not available (POSIX.1)

ENOSPC          No space left on device (POSIX.1)

ENOSR           No STREAM resources (POSIX.1 (XSI STREAMS option))

ENOSTR          Not a STREAM (POSIX.1 (XSI STREAMS option))

ENOSYS          Function not implemented (POSIX.1)

ENOTBLK         Block device required

ENOTCONN        The socket is not connected (POSIX.1)

ENOTDIR         Not a directory (POSIX.1)

ENOTEMPTY       Directory not empty (POSIX.1)

ENOTSOCK        Not a socket (POSIX.1)

ENOTSUP         Operation not supported (POSIX.1)

ENOTTY          Inappropriate I/O control operation (POSIX.1)

ENOTUNIQ        Name not unique on network

ENXIO           No such device or address (POSIX.1)

EOPNOTSUPP      Operation not supported on socket (POSIX.1)

                (ENOTSUP and EOPNOTSUPP have the same value on Linux,
                but according to POSIX.1 these error values should be
                distinct.)

EOVERFLOW       Value too large to be stored in data type (POSIX.1)

EPERM           Operation not permitted (POSIX.1)

EPFNOSUPPORT    Protocol family not supported

EPIPE           Broken pipe (POSIX.1)

EPROTO          Protocol error (POSIX.1)

EPROTONOSUPPORT Protocol not supported (POSIX.1)

EPROTOTYPE      Protocol wrong type for socket (POSIX.1)

ERANGE          Result too large (POSIX.1, C99)

EREMCHG         Remote address changed

EREMOTE         Object is remote

EREMOTEIO       Remote I/O error

ERESTART        Interrupted system call should be restarted

EROFS           Read-only filesystem (POSIX.1)

ESHUTDOWN       Cannot send after transport endpoint shutdown

ESPIPE          Invalid seek (POSIX.1)

ESOCKTNOSUPPORT Socket type not supported

ESRCH           No such process (POSIX.1)

ESTALE          Stale file handle (POSIX.1)

                This error can occur for NFS and for other
                filesystems

ESTRPIPE        Streams pipe error

ETIME           Timer expired (POSIX.1 (XSI STREAMS option))

                (POSIX.1 says "STREAM ioctl(2) timeout")

ETIMEDOUT       Connection timed out (POSIX.1)

ETXTBSY         Text file busy (POSIX.1)

EUCLEAN         Structure needs cleaning

EUNATCH         Protocol driver not attached

EUSERS          Too many users

EWOULDBLOCK     Operation would block (may be same value as EAGAIN)
                (POSIX.1)

EXDEV           Improper link (POSIX.1)

EXFULL          Exchange full

ECHILD

No child processes (POSIX.1)