3 files changed, 201 insertions, 0 deletions
diff --git a/usr.sbin/setfib/Makefile b/usr.sbin/setfib/Makefile
new file mode 100644
index 0000000..8508ed1
--- /dev/null
+++ b/usr.sbin/setfib/Makefile
@@ -0,0 +1,6 @@
+#	@(#)Makefile	8.1 (Berkeley) 6/6/93
+# $FreeBSD$
+
+PROG=	setfib
+
+.include <bsd.prog.mk>
diff --git a/usr.sbin/setfib/setfib.1 b/usr.sbin/setfib/setfib.1
new file mode 100644
index 0000000..29c4947
--- /dev/null
+++ b/usr.sbin/setfib/setfib.1
@@ -0,0 +1,92 @@
+.\" Copyright (c) 2008 Cisco systems
+.\"	Author Julian Elischer.  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. 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 AUTHOR 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd April 9, 2008
+.Dt SETFIB 1
+.Os
+.Sh NAME
+.Nm setfib
+.Nd execute a utility with an altered default network view.
+.Sh SYNOPSIS
+.Nm
+.Op Fl F 
+.Ar fib
+.Ar utility
+.Op Ar argument ...
+.Sh DESCRIPTION
+The
+.Nm
+utility runs
+.Ar utility
+with an different routing table. The table number
+.Dq fib
+will be used by default for all sockets started by this
+process or descendents.
+.Sh ENVIRONMENT
+The
+.Ev PATH
+environment variable is used to locate the requested
+.Ar utility
+if the name contains no
+.Ql /
+characters.
+.Sh EXIT STATUS
+If
+.Ar utility
+is invoked, the exit status of
+.Nm
+is the exit status of
+.Ar utility .
+.Pp
+An exit status of 126 indicates
+.Ar utility
+was found, but could not be executed.
+An exit status of 127 indicates
+.Ar utility
+could not be found.
+.Sh EXAMPLES
+Execute utility
+.Sq netstat
+to view the second routing table.
+.Pp
+.Dl "setfib -F 1 netstat -rn"
+or
+.Dl "setfib 1 netstat -rn"
+or
+.Dl "setfib -1 netstat -rn"
+.Sh SEE ALSO
+.Xr setfib 2 ,
+.Xr setsockopt 2
+.Sh STANDARDS
+The
+.Nm
+utility is a FreeBSD specific extension, however many UNIX like systems
+have an equivalent function.
+.Sh HISTORY
+The
+.Nm
+utility appeared in
+.Fx 8.0 .
diff --git a/usr.sbin/setfib/setfib.c b/usr.sbin/setfib/setfib.c
new file mode 100644
index 0000000..3b15224
--- /dev/null
+++ b/usr.sbin/setfib/setfib.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 1989, 1993, 1994
+ *	The Regents of the University of California.  All rights reserved.
+ * Copyright (c) 2008 Cisco Systems, 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.
+ * 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.
+ * 
+ * setfib file skelaton taken from nice.c
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/sysctl.h>
+
+void usage(void);
+
+int
+main(int argc, char *argv[])
+{
+	long fib = 0;
+	int ch;
+	char *ep;
+	int	numfibs;
+	int intsize = sizeof(int);
+
+        if (sysctlbyname("net.fibs", &numfibs, &intsize, NULL, 0) == -1)
+		errx(1, "Multiple FIBS not supported");
+	if (argc < 2)
+		usage();
+	ep = argv[1];
+	/*
+	 * convert -N or N to -FN. (N is a number)
+	 */
+	if (ep[0]== '-' && isdigit((unsigned char)ep[1]))
+		ep++;
+	if (isdigit((unsigned char)*ep))
+               if (asprintf(&argv[1], "-F%s", ep) < 0)
+                        err(1, "asprintf");
+
+	while ((ch = getopt(argc, argv, "F:")) != -1) {
+		switch (ch) {
+		case 'F':
+			errno = 0;
+			fib = strtol(optarg, &ep, 10);
+			if (ep == optarg || *ep != '\0' || errno ||
+			    fib < 0 || fib >= numfibs)
+				errx(1, "%s: invalid FIB (max %s)",
+				    optarg, numfibs - 1);
+			break;
+		default:
+			usage();
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (argc == 0)
+		usage();
+
+	errno = 0;
+	if (syscall(175, (int)fib))
+		warn("setfib");
+	execvp(*argv, argv);
+	err(errno == ENOENT ? 127 : 126, "%s", *argv);
+}
+
+void
+usage(void)
+{
+
+	(void)fprintf(stderr,
+	    "usage: setfib [-[F]]value command");
+	exit(1);
+}