Copyright (c) 1989 The Regents of the University of California.
All rights reserved.

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@(#)chflags.2 6.2 (Berkeley) 03/07/90

C 7 chflags, fchflags - set file flags

chflags(path, flags)
char *path;
long flags;

fchflags(fd, flags)
int fd;
long flags;

The file whose name is given by path or referenced by the descriptor fd has its flags changed to flags .

Only the owner of a file (or the super-user) may change the flags. The owner may only change the lower 16 bits of the flags; the super-user may change all 32 bits of the flags.

Upon successful completion, a value of 0 is returned. Otherwise, -1 is returned and the global variable errno is set to indicate the error. Chflags fails if one or more of the following are true:

15 [ENOTDIR] A component of the path prefix is not a directory.

15 [EINVAL] The pathname contains a character with the high-order bit set.

15 [ENAMETOOLONG] A component of a pathname exceeded 255 characters, or an entire path name exceeded 1023 characters.

15 [ENOENT] The named file does not exist.

15 [EACCES] Search permission is denied for a component of the path prefix.

15 [ELOOP] Too many symbolic links were encountered in translating the pathname.

15 [EPERM] The effective user ID does not match the owner of the file and the effective user ID is not the super-user.

15 [EROFS] The named file resides on a read-only file system.

15 [EFAULT] Path points outside the process's allocated address space.

15 [EIO] An I/O error occurred while reading from or writing to the file system.

Fchflags will fail if:

15 [EBADF] The descriptor is not valid.

15 [EINVAL] Fd refers to a socket, not to a file.

15 [EPERM] The effective user ID does not match the owner of the file and the effective user ID is not the super-user.

15 [EROFS] The file resides on a read-only file system.

15 [EIO] An I/O error occurred while reading from or writing to the file system.

chmod(2), open(2), chown(2), stat(2)