xref: /386bsd/usr/share/man/cat2/mknod.0 (revision a2142627) 
1MKNOD(2)                  386BSD Programmer's Manual                  MKNOD(2)
2
3NNAAMMEE
4     mmkknnoodd - make a special file node
5
6SSYYNNOOPPSSIISS
7     ##iinncclluuddee <<uunniissttdd..hh>>
8
9     _i_n_t
10     mmkknnoodd(_c_o_n_s_t _c_h_a_r *_p_a_t_h, _m_o_d_e__t _m_o_d_e, _d_e_v__t _d_e_v)
11
12DDEESSCCRRIIPPTTIIOONN
13     The device special file _p_a_t_h is created with the major and minor device
14     numbers extracted from _m_o_d_e. The access permissions of _p_a_t_h are
15     descendant from the umask(2) of the parent process.
16
17     If _m_o_d_e indicates a block or character special file, _d_e_v is a
18     configuration dependent specification of a character or block I/O device
19     and the superblock of the device.  If _m_o_d_e does not indicate a block
20     special or character special device, _d_e_v is ignored.
21
22     MMkknnoodd() requires super-user privileges.
23
24RREETTUURRNN VVAALLUUEESS
25     Upon successful completion a value of 0 is returned.  Otherwise, a value
26     of -1 is returned and _e_r_r_n_o is set to indicate the error.
27
28EERRRROORRSS
29     MMkknnoodd() will fail and the file will be not created if:
30
31     [ENOTDIR]     A component of the path prefix is not a directory.
32
33     [EINVAL]      The pathname contains a character with the high-order bit
34                   set.
35
36     [ENAMETOOLONG]
37                   A component of a pathname exceeded 255 characters, or an
38                   entire path name exceeded 1023 characters.
39
40     [ENOENT]      A component of the path prefix does not exist.
41
42     [EACCES]      Search permission is denied for a component of the path
43                   prefix.
44
45     [ELOOP]       Too many symbolic links were encountered in translating the
46                   pathname.
47
48     [EPERM]       The process's effective user ID is not super-user.
49
50     [EPERM]       The pathname contains a character with the high-order bit
51                   set.
52
53     [EIO]         An I/O error occurred while making the directory entry or
54                   allocating the inode.
55
56     [ENOSPC]      The directory in which the entry for the new node is being
57                   placed cannot be extended because there is no space left on
58                   the file system containing the directory.
59
60     [ENOSPC]      There are no free inodes on the file system on which the
61                   node is being created.
62
63     [EDQUOT]      The directory in which the entry for the new node is being
64                   placed cannot be extended because the user's quota of disk
65                   blocks on the file system containing the directory has been
66
67                   exhausted.
68
69     [EDQUOT]      The user's quota of inodes on the file system on which the
70                   node is being created has been exhausted.
71
72     [EROFS]       The named file resides on a read-only file system.
73
74     [EEXIST]      The named file exists.
75
76     [EFAULT]      _P_a_t_h points outside the process's allocated address space.
77
78SSEEEE AALLSSOO
79     chmod(2),  stat(2),  umask(2)
80
81HHIISSTTOORRYY
82     A mmkknnoodd function call appeared in Version 6 AT&T UNIX.
83
844th Berkeley Distribution       March 10, 1991                               2
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