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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-11-05 14:27:18 +0100 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-11-05 14:28:11 +0100 |
commit | 50e82a6d152a8ada5a4ad3b41a43641afb739aa1 (patch) | |
tree | fae0b2fc7b6d2f43f8c8f2c7ca5ee4ca0825c725 /freebsd | |
parent | foobarclient: Use rtems_mdns_initialize() (diff) | |
download | rtems-libbsd-50e82a6d152a8ada5a4ad3b41a43641afb739aa1.tar.bz2 |
HOSTNAME(1): Import from FreeBSD
Diffstat (limited to 'freebsd')
-rw-r--r-- | freebsd/bin/hostname/hostname.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/freebsd/bin/hostname/hostname.c b/freebsd/bin/hostname/hostname.c new file mode 100644 index 00000000..c3342b85 --- /dev/null +++ b/freebsd/bin/hostname/hostname.c @@ -0,0 +1,143 @@ +#include <machine/rtems-bsd-user-space.h> + +/*- + * 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. + * 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. + */ + +#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 +#ifdef __rtems__ +#define __need_getopt_newlib +#include <getopt.h> +#include <rtems/netcmds-config.h> +#include <machine/rtems-bsd-program.h> +#include <machine/rtems-bsd-commands.h> +#endif /* __rtems__ */ +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <rtems/bsd/sys/param.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +static void usage(void); + +#ifdef __rtems__ +static int main(int argc, char *argv[]); + +static int hostname_command(int argc, char *argv[]) +{ + int exit_code; + + rtems_bsd_program_lock(); + + exit_code = rtems_bsd_program_call_main("hostname", main, argc, argv); + + rtems_bsd_program_unlock(); + + return exit_code; +} + +rtems_shell_cmd_t rtems_shell_HOSTNAME_Command = { + .name = "hostname", + .usage = "hostname [-fs] [name-of-host]", + .topic = "net", + .command = hostname_command +}; +#endif /* __rtems__ */ +int +main(int argc, char *argv[]) +{ + int ch, sflag; + char *p, hostname[MAXHOSTNAMELEN]; +#ifdef __rtems__ + struct getopt_data getopt_data; + memset(&getopt_data, 0, sizeof(getopt_data)); +#define optind getopt_data.optind +#define getopt(argc, argv, opt) getopt_r(argc, argv, "+" opt, &getopt_data) +#endif /* __rtems__ */ + + sflag = 0; + while ((ch = getopt(argc, argv, "fs")) != -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 '?': + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc > 1) + 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'; + } + (void)printf("%s\n", hostname); + } + exit(0); +} + +static void +usage(void) +{ + + (void)fprintf(stderr, "usage: hostname [-fs] [name-of-host]\n"); + exit(1); +} |