diff options
Diffstat (limited to 'usr.sbin/setfib')
-rw-r--r-- | usr.sbin/setfib/Makefile | 6 | ||||
-rw-r--r-- | usr.sbin/setfib/setfib.1 | 92 | ||||
-rw-r--r-- | usr.sbin/setfib/setfib.c | 103 |
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); +} |