NAME | SYNOPSIS | FEATURES | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | SEE ALSO
#include <unistd.h>int mknod(const char *path, mode_t mode, dev_t dev);
MSDOSFS, NFS_CLIENT, UFS
The device special file path is created with the major and minor device numbers extracted from mode.
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.
The use of mknod requires super-user privileges.
Upon successful completion a value of 0 is returned. Otherwise, a value of -1 is returned and errno is set to indicate one of the following error conditions.
A component of the path prefix is not a directory.
A component of a pathname exceeded NAME_MAX characters, or an entire path name exceeded PATH_MAX characters.
A component of the path prefix does not exist.
Search permission is denied for a component of the path prefix.
Too many symbolic links were encountered in translating the pathname.
The process' effective user ID is not super-user.
An I/O error occurred while making the directory entry or allocating the inode.
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.
There are no free inodes on the file system on which the node is being created.
The file named resides on a read-only file system.
The file named already exists.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
NAME | SYNOPSIS | FEATURES | DESCRIPTION | RETURN VALUE | ERRORS | ATTRIBUTES | SEE ALSO