AT&T UNIX™PC Unix System V Users Manual - tenox
AT&T UNIX™PC Unix System V Users Manual - tenox AT&T UNIX™PC Unix System V Users Manual - tenox
I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I n\,.
IOCTL (2) IOCTL (2) NAME ioctl - control device SYNOPSIS ioctl (fildes, request, arg) DESCRIPTION Ioctl performs a variety of functions on character special files (devices). The writeups of various devices in Section 7 discuss how ioctl applies to them. Io ctl will fail if one or more of the following are true: Fildes is not a valid open file descriptor. [EBADF! Fildes is not associated with a character special device. [ENOTTYj Request or arg is not valid. See Section 7. [EINVALj RETURN VALUE If an error has occurred, a value of -1 is returned and errno is set to indicate the error. - 1 -
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- Page 661 and 662: ALARM (2) ALARM (2) NAME alarm - se
- Page 663: BRK(2) BRK ( 2 ) NAME brk, sbrk - c
- Page 667 and 668: CHMOD (2) CHMOD (2) NAME chmod - ch
- Page 669: CHOWN(2) CHOWN(2) NAME chown - chan
- Page 673 and 674: CLOSE ( 2) CLOSE (2) NAME close - c
- Page 675 and 676: CREAT ( 2 ) CREAT ( 2 ) NAME creat
- Page 677 and 678: DUP (2) DUP (2) NAME dup - duplicat
- Page 679 and 680: EXEC (2) EXEC (2) NAME execl, execv
- Page 681: EXEC (2) EXEC (2) Search perm1ss10n
- Page 684 and 685: EXIT (2) EXIT (2) WARNING See WARNI
- Page 686 and 687: FCNTL (2) FCNTL (2) immediately wit
- Page 689 and 690: FORK(2) FORK(2) NAME fork - create
- Page 691: GETPID ( 2} GETPID (2) NAME getpid,
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- Page 699: LINK ( 2 ) LINK ( 2 ) NAME link - l
- Page 703 and 704: MKNOD (2) MKNOD (2) NAME mknod - ma
- Page 705: MOUNT (2) MOUNT (2) NAME mount - mo
- Page 708 and 709: MSGCTL(2) MSGCTL ( 2 ) user ID of t
- Page 710 and 711: MSGGET (2) MSGGET (2) SEE ALSO msgc
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- Page 717 and 718: OPEN ( 2 ) OPEN ( 2 ) NAME open - o
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- Page 725 and 726: PLOCK(2) PLOCK(2) NAME plock - lock
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- Page 735 and 736: SEMCTL ( 2 ) SEMCTL ( 2 ) NAME semc
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- Page 739 and 740: SEMOP ( 2) SEMOP {2) NAME semop - s
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- Page 743: SETPGRP (2) SETPGRP (2) NAME setpgr
IOCTL (2) IOCTL (2)<br />
NAME<br />
ioctl - control device<br />
SYNOPSIS<br />
ioctl (fildes, request, arg)<br />
DESCRIPTION<br />
Ioctl performs a variety of functions on character special files<br />
(devices). The writeups of various devices in Section 7 discuss<br />
how ioctl applies to them.<br />
Io ctl will fail if one or more of the following are true:<br />
Fildes is not a valid open file descriptor. [EBADF!<br />
Fildes is not associated with a character special device.<br />
[ENOTTYj<br />
Request or arg is not valid. See Section 7. [EINVALj<br />
RETURN VALUE<br />
If an error has occurred, a value of -1 is returned and errno is set<br />
to indicate the error.<br />
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