rexec(3N)                        (TCP/IP)                         rexec(3N)


   NAME
         rexec - return stream to a remote command

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

   DESCRIPTION
         rexec() looks up the host *ahost using gethostbyname [see
         gethostent(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.  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 its standard input and
         standard output.  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 signal numbers, to be forwarded to the process group of
         the command.  If fd2p is 0, then the standard error (unit 2 of the
         remote command) will be made the same as its standard output 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
         gethostent(3N), getservent(3N), rcmd(3N), rexecd(1M).

   NOTES
         There is no way to specify options to the socket() call that rexec()
         makes.










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