Use err(3) instead of local definition.
Cosmetic in man page: do not start describing a flag with `The option -X ..'.
This commit is contained in:
Philippe Charnier
parent
e25f6756fb
commit
ed43a0f914
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=27954
@ -38,7 +38,7 @@
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.Nm rsh
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.Nd remote shell
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.Sh SYNOPSIS
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.Nm rsh
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.Nm
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.Op Fl Kdnx
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.Op Fl t Ar timeout
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.Op Fl k Ar realm
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@ -58,27 +58,21 @@ output of the remote command to its standard output, and the
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standard error of the remote command to its standard error.
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Interrupt, quit and terminate signals are propagated to the remote
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command;
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.Nm rsh
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.Nm
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normally terminates when the remote command does.
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The options are as follows:
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.Bl -tag -width flag
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.It Fl K
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The
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.Fl K
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option turns off all Kerberos authentication.
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Turn off all Kerberos authentication.
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.It Fl d
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The
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.Fl d
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option turns on socket debugging (using
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Turn on socket debugging (using
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.Xr setsockopt 2 )
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on the
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.Tn TCP
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sockets used for communication with the remote host.
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.It Fl k
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The
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.Fl k
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option causes
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.Nm rsh
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Cause
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.Nm
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to obtain tickets for the remote host in
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.Ar realm
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instead of the remote host's realm as determined by
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@ -92,24 +86,18 @@ Kerberos authentication is used, and authorization is determined
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as in
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.Xr rlogin 1 .
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.It Fl n
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The
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.Fl n
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option redirects input from the special device
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Redirect input from the special device
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.Pa /dev/null
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(see the
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.Sx BUGS
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section of this manual page).
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.It Fl x
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The
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.Fl x
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option turns on
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Turn on
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.Tn DES
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encryption for all data exchange.
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This may introduce a significant delay in response time.
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.It Fl t
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The
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.Fl t
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option allows a timeout to be specified (in seconds). If no
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Allow a timeout to be specified (in seconds). If no
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data is sent or received in this time, rsh will exit.
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.El
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.Pp
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@ -158,18 +146,18 @@ to
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.Xr rshd 8
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.Sh HISTORY
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The
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.Nm rsh
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.Nm
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command appeared in
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.Bx 4.2 .
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.Sh BUGS
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If you are using
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.Xr csh 1
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and put a
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.Nm rsh
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.Nm
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in the background without redirecting its input away from the terminal,
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it will block even if no reads are posted by the remote command.
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If no input is desired you should redirect the input of
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.Nm rsh
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.Nm
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to
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.Pa /dev/null
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using the
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@ -182,12 +170,12 @@ You cannot run an interactive command
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or
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.Xr vi 1 )
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using
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.Nm rsh ;
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.Nm rsh ;
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use
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.Xr rlogin 1
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.Xr rlogin 1
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instead.
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.Pp
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Stop signals stop the local
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.Nm rsh
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.Nm
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process only; this is arguably wrong, but currently hard to fix for reasons
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too complicated to explain here.
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@ -32,15 +32,17 @@
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*/
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#ifndef lint
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static char copyright[] =
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 1990, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "From: @(#)rsh.c 8.3 (Berkeley) 4/6/94";
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#endif
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static char rcsid[] =
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"$Id: rsh.c,v 1.10 1997/02/22 19:56:46 peter Exp $";
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"$Id: rsh.c,v 1.11 1997/03/29 04:31:59 imp Exp $";
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#endif /* not lint */
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#include <sys/types.h>
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@ -85,7 +87,6 @@ char *copyargs __P((char **));
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void sendsig __P((int));
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void talk __P((int, long, pid_t, int, int));
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void usage __P((void));
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void warning __P(());
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int
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main(argc, argv)
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@ -209,7 +210,8 @@ main(argc, argv)
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sp = getservbyname((doencrypt ? "ekshell" : "kshell"), "tcp");
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if (sp == NULL) {
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use_kerberos = 0;
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warning("can't get entry for %s/tcp service",
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warnx(
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"warning, using standard rsh: can't get entry for %s/tcp service",
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doencrypt ? "ekshell" : "kshell");
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}
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}
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@ -249,9 +251,11 @@ main(argc, argv)
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if (sp == NULL)
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errx(1, "shell/tcp: unknown service");
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if (errno == ECONNREFUSED)
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warning("remote host doesn't support Kerberos");
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warnx(
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"warning, using standard rsh: remote host doesn't support Kerberos");
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if (errno == ENOENT)
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warning("can't provide Kerberos auth data");
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warnx(
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"warning, using standard rsh: can't provide Kerberos auth data");
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goto try_connect;
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}
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} else {
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@ -437,24 +441,6 @@ sendsig(sig)
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(void)write(rfd2, &signo, 1);
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}
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#ifdef KERBEROS
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/* VARARGS */
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void
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warning(va_alist)
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va_dcl
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{
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va_list ap;
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char *fmt;
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(void)fprintf(stderr, "rsh: warning, using standard rsh: ");
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va_start(ap);
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fmt = va_arg(ap, char *);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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(void)fprintf(stderr, ".\n");
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}
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#endif
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char *
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copyargs(argv)
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char **argv;
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