BSD 2.11 - man page for rexec (bsd section 3)

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REXEC(3)										 REXEC(3)

       rexec - return stream to a remote command

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

       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 pass-
       word  are  both specified, then these are used to authenticate to the foreign host; other-
       wise 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 call ``getservbyname("exec", "tcp")'' (see getservent(3N)) will return a pointer to	a
       structure, which contains the necessary port.  The protocol for connection is described in
       detail in rexecd(8C).

       If the connection succeeds, a socket  in  the  Internet	domain	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 an 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
       UNIX  signal numbers, to be forwarded to the process group of the command.  The diagnostic
       information returned does not include remote authorization failure, as the secondary  con-
       nection	is  set  up after authorization has been verified.  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.

       rcmd(3), rexecd(8C)

4.2 Berkeley Distribution		   May 14, 1986 				 REXEC(3)
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