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   open    ( 2 )

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Ошибки (Error)

open(), openat(), and creat() can fail with the following errors:

EACCES The requested access to the file is not allowed, or search permission is denied for one of the directories in the path prefix of pathname, or the file did not exist yet and write access to the parent directory is not allowed. (See also path_resolution(7).)

EACCES Where O_CREAT is specified, the protected_fifos or protected_regular sysctl is enabled, the file already exists and is a FIFO or regular file, the owner of the file is neither the current user nor the owner of the containing directory, and the containing directory is both world- or group-writable and sticky. For details, see the descriptions of /proc/sys/fs/protected_fifos and /proc/sys/fs/protected_regular in proc(5).

EBADF (openat()) pathname is relative but dirfd is neither AT_FDCWD nor a valid file descriptor.

EBUSY O_EXCL was specified in flags and pathname refers to a block device that is in use by the system (e.g., it is mounted).

EDQUOT Where O_CREAT is specified, the file does not exist, and the user's quota of disk blocks or inodes on the filesystem has been exhausted.

EEXIST pathname already exists and O_CREAT and O_EXCL were used.

EFAULT pathname points outside your accessible address space.

EFBIG See EOVERFLOW.

EINTR While blocked waiting to complete an open of a slow device (e.g., a FIFO; see fifo(7)), the call was interrupted by a signal handler; see signal(7).

EINVAL The filesystem does not support the O_DIRECT flag. See NOTES for more information.

EINVAL Invalid value in flags.

EINVAL O_TMPFILE was specified in flags, but neither O_WRONLY nor O_RDWR was specified.

EINVAL O_CREAT was specified in flags and the final component ("basename") of the new file's pathname is invalid (e.g., it contains characters not permitted by the underlying filesystem).

EINVAL The final component ("basename") of pathname is invalid (e.g., it contains characters not permitted by the underlying filesystem).

EISDIR pathname refers to a directory and the access requested involved writing (that is, O_WRONLY or O_RDWR is set).

EISDIR pathname refers to an existing directory, O_TMPFILE and one of O_WRONLY or O_RDWR were specified in flags, but this kernel version does not provide the O_TMPFILE functionality.

ELOOP Too many symbolic links were encountered in resolving pathname.

ELOOP pathname was a symbolic link, and flags specified O_NOFOLLOW but not O_PATH.

EMFILE The per-process limit on the number of open file descriptors has been reached (see the description of RLIMIT_NOFILE in getrlimit(2)).

ENAMETOOLONG pathname was too long.

ENFILE The system-wide limit on the total number of open files has been reached.

ENODEV pathname refers to a device special file and no corresponding device exists. (This is a Linux kernel bug; in this situation ENXIO must be returned.)

ENOENT O_CREAT is not set and the named file does not exist.

ENOENT A directory component in pathname does not exist or is a dangling symbolic link.

ENOENT pathname refers to a nonexistent directory, O_TMPFILE and one of O_WRONLY or O_RDWR were specified in flags, but this kernel version does not provide the O_TMPFILE functionality.

ENOMEM The named file is a FIFO, but memory for the FIFO buffer can't be allocated because the per-user hard limit on memory allocation for pipes has been reached and the caller is not privileged; see pipe(7).

ENOMEM Insufficient kernel memory was available.

ENOSPC pathname was to be created but the device containing pathname has no room for the new file.

ENOTDIR A component used as a directory in pathname is not, in fact, a directory, or O_DIRECTORY was specified and pathname was not a directory.

ENOTDIR (openat()) pathname is a relative pathname and dirfd is a file descriptor referring to a file other than a directory.

ENXIO O_NONBLOCK | O_WRONLY is set, the named file is a FIFO, and no process has the FIFO open for reading.

ENXIO The file is a device special file and no corresponding device exists.

ENXIO The file is a UNIX domain socket.

EOPNOTSUPP The filesystem containing pathname does not support O_TMPFILE.

EOVERFLOW pathname refers to a regular file that is too large to be opened. The usual scenario here is that an application compiled on a 32-bit platform without -D_FILE_OFFSET_BITS=64 tried to open a file whose size exceeds (1<<31)-1 bytes; see also O_LARGEFILE above. This is the error specified by POSIX.1; in kernels before 2.6.24, Linux gave the error EFBIG for this case.

EPERM The O_NOATIME flag was specified, but the effective user ID of the caller did not match the owner of the file and the caller was not privileged.

EPERM The operation was prevented by a file seal; see fcntl(2).

EROFS pathname refers to a file on a read-only filesystem and write access was requested.

ETXTBSY pathname refers to an executable image which is currently being executed and write access was requested.

ETXTBSY pathname refers to a file that is currently in use as a swap file, and the O_TRUNC flag was specified.

ETXTBSY pathname refers to a file that is currently being read by the kernel (e.g., for module/firmware loading), and write access was requested.

EWOULDBLOCK The O_NONBLOCK flag was specified, and an incompatible lease was held on the file (see fcntl(2)).