NAME

ttymsg — ttymsg utility function

LIBRARY

System Utilities Library (libutil, -lutil)

SYNOPSIS

#include <util.h>

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)