rexec(3x)rexec(3x)Namerexec - return stream to a remote command
Syntax
rem = rexec(ahost, inport, user, passwd, cmd, fd2p);
char **ahost;
u_short inport;
char *user, *passwd, *cmd;
int *fd2p;
Description
The subroutine looks up the host *ahost using returning -1 if the host
does not exist. For further information, see Otherwise *ahost is set
to the standard name of the host. If a username and password are both
specified, then these are used to authenticate to the foreign host. If
all this fails, the user is prompted for the information.
The port inport specifies which well-known DARPA Internet port to use
for the connection; it will normally be the value returned from the
call ``getservbyname("exec", "tcp")''. For further information, see
The protocol for connection is described in detail in
If the call succeeds, a socket of type SOCK_STREAM is returned to the
caller and given to the remote command as stdin and stdout. If fd2p is
nonzero, then an auxiliary channel to a control process will be set up,
and a descriptor for it will be placed in *fd2p. The control process
will return diagnostic output from the command (unit 2) on this channel
and will also accept bytes on this channel as being UNIX signal num‐
bers, to be forwarded to the process group of the command. If fd2p is
0, then the stderr (unit 2 of the remote command) will be made the same
as the stdout and no provision is made for sending arbitrary signals to
the remote process, although you may be able to get its attention by
using out-of-band data.
See Alsogethostent(3n), getservent(3n), rcmd(3x), rexecd(8c)rexec(3x)
