Originální popis anglicky:
unlockpt - unlock a pseudo-terminal master/slave pair
Návod, kniha: POSIX Programmer's Manual
#include <stdlib.h>
int unlockpt(int
fildes);
The
unlockpt() function shall unlock the slave pseudo-terminal device
associated with the master to which
fildes refers.
Conforming applications shall ensure that they call
unlockpt() before
opening the slave side of a pseudo-terminal device.
Upon successful completion,
unlockpt() shall return 0. Otherwise, it
shall return -1 and set
errno to indicate the error.
The
unlockpt() function may fail if:
- EBADF
- The fildes argument is not a file descriptor open
for writing.
- EINVAL
- The fildes argument is not associated with a master
pseudo-terminal device.
The following sections are informative.
None.
None.
None.
None.
grantpt() ,
open() ,
ptsname() , the Base Definitions
volume of IEEE Std 1003.1-2001,
<stdlib.h>
Portions of this text are reprinted and reproduced in electronic form from IEEE
Std 1003.1, 2003 Edition, Standard for Information Technology -- Portable
Operating System Interface (POSIX), The Open Group Base Specifications Issue
6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics
Engineers, Inc and The Open Group. In the event of any discrepancy between
this version and the original IEEE and The Open Group Standard, the original
IEEE and The Open Group Standard is the referee document. The original
Standard can be obtained online at http://www.opengroup.org/unix/online.html
.
