rexec(3X)                      DG/UX 5.4R3.00                      rexec(3X)


NAME
       rexec - return stream to a remote command

SYNOPSIS
       rem = rexec(ahost, inport, user, passwd, cmd, fd2p);
       char **ahost;
       ushort inport;
       char *user, *passwd, *cmd;
       int *fd2p;

DESCRIPTION
       rexec looks up the host *ahost using gethostbyname(3N), returning -1
       if the host does not exist.  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; otherwise
       the environment and then the user's .netrc file in his home directory
       are searched for appropriate information.  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")'' (see getservent(3N)).  The
       protocol for connection is described in detail in rexecd(1M).

       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 non-zero, then a auxiliary channel to a control process will be
       setup, 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
       DG/UX system signal numbers, 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 ALSO
       rexecd(1M), rcmd(3X).

BUGS
       There is no way to specify options to the socket call that rexec
       makes.















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