diff options
Diffstat (limited to 'bin/hostname')
| -rw-r--r-- | bin/hostname/Makefile | 7 | ||||
| -rw-r--r-- | bin/hostname/Makefile.depend | 17 | ||||
| -rw-r--r-- | bin/hostname/hostname.1 | 76 | ||||
| -rw-r--r-- | bin/hostname/hostname.c | 115 |
4 files changed, 215 insertions, 0 deletions
diff --git a/bin/hostname/Makefile b/bin/hostname/Makefile new file mode 100644 index 000000000000..9b0ecd7e4c4a --- /dev/null +++ b/bin/hostname/Makefile @@ -0,0 +1,7 @@ +# @(#)Makefile 8.1 (Berkeley) 5/31/93 +# $FreeBSD$ + +PACKAGE=runtime +PROG= hostname + +.include <bsd.prog.mk> diff --git a/bin/hostname/Makefile.depend b/bin/hostname/Makefile.depend new file mode 100644 index 000000000000..6cfaab1c3644 --- /dev/null +++ b/bin/hostname/Makefile.depend @@ -0,0 +1,17 @@ +# $FreeBSD$ +# Autogenerated - do NOT edit! + +DIRDEPS = \ + gnu/lib/csu \ + include \ + include/xlocale \ + lib/${CSU_DIR} \ + lib/libc \ + lib/libcompiler_rt \ + + +.include <dirdeps.mk> + +.if ${DEP_RELDIR} == ${_DEP_RELDIR} +# local dependencies - needed for -jN in clean tree +.endif diff --git a/bin/hostname/hostname.1 b/bin/hostname/hostname.1 new file mode 100644 index 000000000000..d99b591fd8ad --- /dev/null +++ b/bin/hostname/hostname.1 @@ -0,0 +1,76 @@ +.\"- +.\" Copyright (c) 1983, 1988, 1990, 1993 +.\" 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. 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. +.\" +.\" @(#)hostname.1 8.2 (Berkeley) 4/28/95 +.\" $FreeBSD$ +.\" +.Dd November 10, 2016 +.Dt HOSTNAME 1 +.Os +.Sh NAME +.Nm hostname +.Nd set or print name of current host system +.Sh SYNOPSIS +.Nm +.Op Fl f +.Op Fl s | d +.Op Ar name-of-host +.Sh DESCRIPTION +The +.Nm +utility prints the name of the current host. +The super-user can +set the hostname by supplying an argument; this is usually done in the +initialization script +.Pa /etc/rc.d/hostname , +normally run at boot +time. +This script uses the +.Va hostname +variable in +.Pa /etc/rc.conf . +.Pp +Options: +.Bl -tag -width flag +.It Fl f +Include domain information in the printed name. +This is the default behavior. +.It Fl s +Trim off any domain information from the printed +name. +.It Fl d +Only print domain information. +.El +.Sh SEE ALSO +.Xr gethostname 3 , +.Xr rc.conf 5 +.Sh HISTORY +The +.Nm +command appeared in +.Bx 4.2 . diff --git a/bin/hostname/hostname.c b/bin/hostname/hostname.c new file mode 100644 index 000000000000..d5cc6b1cfff2 --- /dev/null +++ b/bin/hostname/hostname.c @@ -0,0 +1,115 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 1988, 1993 + * 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. 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. + */ + +#if 0 +#ifndef lint +static char const copyright[] = +"@(#) Copyright (c) 1988, 1993\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +static char sccsid[] = "@(#)hostname.c 8.1 (Berkeley) 5/31/93"; +#endif /* not lint */ +#endif +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +static void usage(void) __dead2; + +int +main(int argc, char *argv[]) +{ + int ch, sflag, dflag; + char *p, hostname[MAXHOSTNAMELEN]; + + sflag = 0; + dflag = 0; + while ((ch = getopt(argc, argv, "fsd")) != -1) + switch (ch) { + case 'f': + /* + * On Linux, "hostname -f" prints FQDN. + * BSD "hostname" always prints FQDN by + * default, so we accept but ignore -f. + */ + break; + case 's': + sflag = 1; + break; + case 'd': + dflag = 1; + break; + case '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc > 1 || (sflag && dflag)) + usage(); + + if (*argv) { + if (sethostname(*argv, (int)strlen(*argv))) + err(1, "sethostname"); + } else { + if (gethostname(hostname, (int)sizeof(hostname))) + err(1, "gethostname"); + if (sflag) { + p = strchr(hostname, '.'); + if (p != NULL) + *p = '\0'; + } else if (dflag) { + p = strchr(hostname, '.'); + if (p != NULL) + strcpy(hostname, ++p); + } + (void)printf("%s\n", hostname); + } + exit(0); +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "usage: hostname [-f] [-s | -d] [name-of-host]\n"); + exit(1); +} |