RCMDSH(3)						   BSD Library Functions Manual 						 RCMDSH(3)

NAME

     rcmdsh -- return a stream to a remote command without superuser

SYNOPSIS

     #include <unistd.h>

     int
     rcmdsh(char **ahost, int inport, const char *locuser, const char *remuser, const char *cmd, const char *rshprog);

DESCRIPTION

     The rcmdsh() function is used by normal users to execute a command on a remote machine using an authentication scheme based on reserved port
     numbers using rshd(8) or the value of rshprog (if non-NULL).

     The rcmdsh() function looks up the host *ahost using gethostbyname(3), returning -1 if the host does not exist.  Otherwise *ahost is set to
     the standard name of the host and a connection is established to a server residing at the well-known Internet port ``shell/tcp'' (or whatever
     port is used by rshprog).	The inport argument is ignored; it is only included to provide an interface similar to rcmd(3).

     If the connection succeeds, a socket in the UNIX domain of type SOCK_STREAM is returned to the caller, and given to the remote command as
     stdin, stdout, and stderr.

RETURN VALUES

     The rcmdsh() function returns a valid socket descriptor on success.  Otherwise, -1 is returned and a diagnostic message is printed on the
     standard error.

SEE ALSO

     rsh(1), socketpair(2), rcmd(3), rshd(8)

HISTORY

     The rcmdsh() function first appeared in OpenBSD 2.0, and made its way into FreeBSD 4.6.

BUGS

     If rsh(1) encounters an error, a file descriptor is still returned instead of -1.

BSD
								 September 1, 1996							       BSD