NAME
ttymsg
- ttymsg utility function
LIBRARY
System Utilities Library (libutil, -lutil)
SYNOPSIS
char *
ttymsg(struct iovec *iov, int iovlen, const char *tty, int tmout)
DESCRIPTION
The
ttymsg()
function is used by
programs such as
talkd(8),
syslogd(8),
wall(1),
etc., to display the contents of a uio structure on a terminal.
ttymsg()
forks and finishes in the child if the write would block after
waiting up to
tmout
seconds.
RETURN VALUES
ttymsg()
returns a pointer to an error string on unexpected
error; the string is not newline-terminated.
Various "normal" errors are
ignored (exclusive-use, lack of permission, etc.).
SEE ALSO
writev(2)