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AROS-v0/workbench/network/common/C/hostname.c

114 lines
2.9 KiB
C

/*-
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 2005
* Pavel Fedin
*
* 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.
*/
#define ENABLE_SETHOSTNAME
#include <proto/socket.h>
#include <net/if_dl.h>
#include <sys/cdefs.h>
#include <sys/param.h>
#include <err.h>
#include <netdb.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <proto/miami.h>
void usage(void);
#if defined(__AROS__)
#include <dos/dos.h>
#include <proto/exec.h>
#endif
const char version[] = "$VER: hostname 1.1 (22.12.2005)";
int
main(int argc, char *argv[])
{
int ch, sflag;
char *p, hostname[MAXHOSTNAMELEN];
sflag = 0;
while ((ch = getopt(argc, argv, "s")) != -1)
switch (ch) {
case 's':
sflag = 1;
break;
case '?':
default:
usage();
}
argc -= optind;
argv += optind;
#ifdef ENABLE_SETHOSTNAME
if (argc > 1)
#else
if (argc)
#endif
usage();
#ifdef ENABLE_SETHOSTNAME
if (*argv) {
if (sethostname(*argv, (int)strlen(*argv)))
{
err(1, "sethostname");
}
} else {
#endif
if (gethostname(hostname, (int)sizeof(hostname)))
{
err(1, "gethostname");
}
if (sflag) {
p = strchr(hostname, '.');
if (p != NULL)
*p = '\0';
}
(void)printf("%s\n", hostname);
#ifdef ENABLE_SETHOSTNAME
}
#endif
exit(0);
}
void
usage(void)
{
#ifdef ENABLE_SETHOSTNAME
(void)fprintf(stderr, "usage: hostname [-s] [name-of-host]\n");
#else
(void)fprintf(stderr, "usage: hostname [-s]\n");
#endif
exit(1);
}