initial import of NetBSD tree

4 files changed, 271 insertions, 0 deletions

diff --git a/libexec/fingerd/Makefile b/libexec/fingerd/Makefile
new file mode 100644
index 00000000000..f9fa1bc9293
--- /dev/null
+++ b/libexec/fingerd/Makefile
@@ -0,0 +1,7 @@
+#	from: @(#)Makefile	5.3 (Berkeley) 5/11/90
+#	$Id: Makefile,v 1.1 1995/10/18 08:43:15 deraadt Exp $
+
+PROG=	fingerd
+MAN=	fingerd.8
+
+.include <bsd.prog.mk>
diff --git a/libexec/fingerd/fingerd.8 b/libexec/fingerd/fingerd.8
new file mode 100644
index 00000000000..efb5226a9cd
--- /dev/null
+++ b/libexec/fingerd/fingerd.8
@@ -0,0 +1,110 @@
+.\" Copyright (c) 1980, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     from: @(#)fingerd.8	6.4 (Berkeley) 3/16/91
+.\"	$Id: fingerd.8,v 1.1 1995/10/18 08:43:15 deraadt Exp $
+.\"
+.Dd March 16, 1991
+.Dt FINGERD 8
+.Os BSD 4.3
+.Sh NAME
+.Nm fingerd
+.Nd remote user information server
+.Sh SYNOPSIS
+.Nm fingerd
+.Sh DESCRIPTION
+.Nm Fingerd
+is a simple protocol based on
+.%T RFC742
+that provides an interface to the
+Name and Finger programs at several network sites.
+The program is supposed to return a friendly,
+human-oriented status report on either the system at the moment
+or a particular person in depth.
+There is no required format and the
+protocol consists mostly of specifying a single
+.Dq command line .
+.Pp
+.Nm Fingerd
+listens for
+.Tn TCP
+requests at port 79.
+Once connected it reads a single command line
+terminated by a
+.Aq Tn CRLF
+which is passed to
+.Xr finger 1 .
+.Nm Fingerd
+closes its connections as soon as the output is finished.
+.Pp
+If the line is null (i.e. just a
+.Aq Tn CRLF
+is sent) then 
+.Xr finger
+returns a
+.Dq default
+report that lists all people logged into
+the system at that moment.
+.Pp
+If a user name is specified (e.g.
+.Pf eric Aq Tn CRLF )
+then the
+response lists more extended information for only that particular user,
+whether logged in or not.
+Allowable
+.Dq names
+in the command line include both
+.Dq login names
+and
+.Dq user names .
+If a name is ambiguous, all possible derivations are returned.
+.Sh SEE ALSO
+.Xr finger 1
+.Sh BUGS
+Connecting directly to the server from a
+.Tn TIP
+or an equally narrow-minded
+.Tn TELNET Ns \-protocol
+user program can result
+in meaningless attempts at option negotiation being sent to the
+server, which will foul up the command line interpretation.
+.Nm Fingerd
+should be taught to filter out
+.Tn IAC Ns \'s
+and perhaps even respond
+negatively
+.Pq Tn IAC WON'T
+to all option commands received.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.3 .
diff --git a/libexec/fingerd/fingerd.c b/libexec/fingerd/fingerd.c
new file mode 100644
index 00000000000..50a6b33e55a
--- /dev/null
+++ b/libexec/fingerd/fingerd.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 1983 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+char copyright[] =
+"@(#) Copyright (c) 1983 The Regents of the University of California.\n\
+ All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+/*static char sccsid[] = "from: @(#)fingerd.c	5.6 (Berkeley) 6/1/90";*/
+static char rcsid[] = "$Id: fingerd.c,v 1.1 1995/10/18 08:43:15 deraadt Exp $";
+#endif /* not lint */
+
+#include <stdio.h>
+#include "pathnames.h"
+
+main()
+{
+	register FILE *fp;
+	register int ch;
+	register char *lp;
+	int p[2];
+#define	ENTRIES	50
+	char **ap, *av[ENTRIES + 1], line[1024], *strtok();
+
+#ifdef LOGGING					/* unused for now */
+#include <netinet/in.h>
+	struct sockaddr_in sin;
+	int sval;
+
+	sval = sizeof(sin);
+	if (getpeername(0, &sin, &sval) < 0)
+		fatal("getpeername");
+#endif
+
+	if (!fgets(line, sizeof(line), stdin))
+		exit(1);
+
+	av[0] = "finger";
+	for (lp = line, ap = &av[1];;) {
+		*ap = strtok(lp, " \t\r\n");
+		if (!*ap)
+			break;
+		/* RFC742: "/[Ww]" == "-l" */
+		if ((*ap)[0] == '/' && ((*ap)[1] == 'W' || (*ap)[1] == 'w'))
+			*ap = "-l";
+		if (++ap == av + ENTRIES)
+			break;
+		lp = NULL;
+	}
+
+	if (pipe(p) < 0)
+		fatal("pipe");
+
+	switch(fork()) {
+	case 0:
+		(void)close(p[0]);
+		if (p[1] != 1) {
+			(void)dup2(p[1], 1);
+			(void)close(p[1]);
+		}
+		execv(_PATH_FINGER, av);
+		_exit(1);
+	case -1:
+		fatal("fork");
+	}
+	(void)close(p[1]);
+	if (!(fp = fdopen(p[0], "r")))
+		fatal("fdopen");
+	while ((ch = getc(fp)) != EOF) {
+		if (ch == '\n')
+			putchar('\r');
+		putchar(ch);
+	}
+	exit(0);
+}
+
+fatal(msg)
+	char *msg;
+{
+	extern int errno;
+	char *strerror();
+
+	fprintf(stderr, "fingerd: %s: %s\r\n", msg, strerror(errno));
+	exit(1);
+}
diff --git a/libexec/fingerd/pathnames.h b/libexec/fingerd/pathnames.h
new file mode 100644
index 00000000000..6805247e9a6
--- /dev/null
+++ b/libexec/fingerd/pathnames.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)pathnames.h	5.3 (Berkeley) 6/1/90
+ *	$Id: pathnames.h,v 1.1 1995/10/18 08:43:15 deraadt Exp $
+ */
+
+#define	_PATH_FINGER	"/usr/bin/finger"