mknod(2) [netbsd man page]

MKNOD(2)						      BSD System Calls Manual							  MKNOD(2)

NAME

     mknod -- make a special file node

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/stat.h>

     int
     mknod(const char *path, mode_t mode, dev_t dev);

DESCRIPTION

     The device special file path is created with the major and minor device numbers specified by dev.	The access permissions of path are
     extracted from mode, modified by the umask(2) of the parent process.

     mknod() requires super-user privileges.

RETURN VALUES

     Upon successful completion a value of 0 is returned.  Otherwise, a value of -1 is returned and errno is set to indicate the error.

ERRORS

     mknod() will fail and the file will be not created if:

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

     [EDQUOT]		The directory in which the entry for the new node is being placed cannot be extended because the user's quota of disk
			blocks on the file system containing the directory has been exhausted; or the user's quota of inodes on the file system on
			which the node is being created has been exhausted.

     [EEXIST]		The named file exists.

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

     [EINVAL]		The supplied mode or dev is invalid.

     [EIO]		An I/O error occurred while making the directory entry or allocating the inode.

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

     [ENAMETOOLONG]	A component of a pathname exceeded {NAME_MAX} characters, or an entire path name exceeded {PATH_MAX} characters.

     [ENOENT]		A component of the path prefix does not exist.

     [ENOSPC]		The directory in which the entry for the new node is being placed cannot be extended because there is no space left on the
			file system containing the directory; or there are no free inodes on the file system on which the node is being created.

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

     [EPERM]		The process's effective user ID is not super-user.

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

SEE ALSO

     chmod(2), mkfifo(2), stat(2), umask(2)

HISTORY

     A mknod() function call appeared in Version 6 AT&T UNIX.

BSD
								   July 3, 2011 							       BSD

MKNOD(2)						      BSD System Calls Manual							  MKNOD(2)

NAME

     mknod -- make a special file node

SYNOPSIS

     #include <sys/stat.h>

     int
     mknod(const char *path, mode_t mode, dev_t dev);

DESCRIPTION

     The device special file path is created with the major and minor device numbers extracted from mode.  The access permissions of path are con-
     strained by the umask(2) of the parent process.

     If mode indicates a block or character special file, dev is a configuration-dependent specification of a character or block I/O device and
     the superblock of the device.  If mode does not indicate a block special or character special device, dev is ignored.

     Mknod() requires super-user privileges.

RETURN VALUES

     Upon successful completion, a value of 0 is returned.  Otherwise, a value of -1 is returned and errno is set to indicate the error.

ERRORS

     Mknod() will fail and the file will be not created if:

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

     [EACCES]		Write permission is denied for the parent directory.

     [EDQUOT]		The directory in which the entry for the new node is being placed cannot be extended; the user's quota of disk blocks on
			the file system containing the directory has been exhausted.

     [EDQUOT]		The user's quota of inodes for the file system on which the node is being created has been exhausted.

     [EEXIST]		The named file exists.

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

     [EINVAL]		One or more of the arguments is invalid.

     [EIO]		An I/O error occurs while making the directory entry or allocating the inode.

     [ELOOP]		Too many symbolic links were encountered in translating the pathname.  This is taken to be indicative of a looping sym-
			bolic link.

     [ENAMETOOLONG]	A component of a pathname exceeds {NAME_MAX} characters or an entire path name exceeds {PATH_MAX} characters.

     [ENOENT]		A component of the path prefix does not exist or path is an empty string.

     [ENOSPC]		The directory in which the entry for the new node is being placed cannot be extended, because there is no space left on
			the file system containing the directory.

     [ENOSPC]		There are no free inodes on the file system on which the node is being created.

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

     [EPERM]		The process's effective user ID is not super-user.

     [EROFS]		The created node would reside on a read-only file system.

LEGACY SYNOPSIS

     #include <unistd.h>

     The include file has changed.

SEE ALSO

     chmod(2), stat(2), umask(2), compat(5)

HISTORY

     A mknod() function call appeared in Version 6 AT&T UNIX.

4th Berkeley Distribution					   June 4, 1993 					 4th Berkeley Distribution