Stuf
This commit is contained in:
Eric Andersen
parent
485b9550fd
commit
d29edf34d6
68
hostname.c
68
hostname.c
@ -1,9 +1,12 @@
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/*
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* $Id: hostname.c,v 1.1 1999/12/07 23:14:59 andersen Exp $
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* $Id: hostname.c,v 1.2 1999/12/08 04:13:44 andersen Exp $
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* Mini hostname implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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*
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* adjusted by Erik Andersen <andersee@debian.org> to remove
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* use of long options and GNU getopt. Improved the usage info.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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@ -21,27 +24,21 @@
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#include "internal.h"
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#include <errno.h>
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#include <getopt.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <stdio.h>
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static const char* hostname_usage = "hostname [OPTION] {hostname | -F file}\n\n"
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static const char* hostname_usage =
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"hostname [OPTION] {hostname | -F file}\n\n"
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"Get or set the hostname or DNS domain name. If a hostname is given\n"
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"(or a file with the -F parameter), the host name will be set.\n\n"
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"Options:\n"
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"\t-s, --short\t\tshort\n"
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"\t-i, --ip-address\t\taddresses for the hostname\n"
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"\t-d, --domain\t\tDNS domain name\n"
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"If a hostname is given, or a file is given with the -F parameter, the host\n"
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"name will be set\n";
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"\t-s\t\tShort\n"
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"\t-i\t\tAddresses for the hostname\n"
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"\t-d\t\tDNS domain name\n"
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"\t-F file\tUse FILE to specify the hostname\n";
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static char short_opts[] = "sidF:";
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static const struct option long_opts[] = {
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{ "short", no_argument, NULL, 's' },
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{ "ip-address", no_argument, NULL, 'i' },
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{ "domain", no_argument, NULL, 'd' },
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{ NULL, 0, NULL, 0 }
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};
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void do_sethostname(char *s, int isfile)
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{
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@ -75,11 +72,9 @@ void do_sethostname(char *s, int isfile)
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int hostname_main(int argc, char **argv)
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{
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int c;
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int opt_short = 0;
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int opt_domain = 0;
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int opt_ip = 0;
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int opt_file = 0;
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struct hostent *h;
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char *filename = NULL;
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char buf[255];
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@ -87,19 +82,36 @@ int hostname_main(int argc, char **argv)
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if (argc < 1) usage(hostname_usage);
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while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
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switch (c) {
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case 's': opt_short = 1; break;
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case 'i': opt_ip = 1; break;
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case 'd': opt_domain = 1; break;
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case 'F': opt_file = 1; filename = optarg; break;
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default: usage(hostname_usage);
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while (--argc > 0 && **(++argv) == '-') {
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while (*(++(*argv))) {
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switch (**argv) {
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case 's':
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opt_short = 1;
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break;
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case 'i':
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opt_ip = 1;
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break;
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case 'd':
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opt_domain = 1;
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break;
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case 'F':
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filename = optarg;
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if (--argc == 0) {
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usage(hostname_usage);
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}
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filename = *(++argv);
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break;
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default:
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usage(hostname_usage);
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}
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if (filename!=NULL)
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break;
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}
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}
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if (optind < argc) {
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do_sethostname(argv[optind], 0);
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} else if (opt_file) {
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if (argc >= 1) {
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do_sethostname(*argv, 0);
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} else if (filename!=NULL) {
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do_sethostname(filename, 1);
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} else {
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gethostname(buf, 255);
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@ -121,6 +133,6 @@ int hostname_main(int argc, char **argv)
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printf("%s\n", buf);
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}
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}
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return 0;
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exit( 0);
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}
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@ -1,9 +1,12 @@
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/*
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* $Id: hostname.c,v 1.1 1999/12/07 23:14:59 andersen Exp $
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* $Id: hostname.c,v 1.2 1999/12/08 04:13:44 andersen Exp $
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* Mini hostname implementation for busybox
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*
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* Copyright (C) 1999 by Randolph Chung <tausq@debian.org>
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*
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* adjusted by Erik Andersen <andersee@debian.org> to remove
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* use of long options and GNU getopt. Improved the usage info.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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@ -21,27 +24,21 @@
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#include "internal.h"
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#include <errno.h>
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#include <getopt.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <stdio.h>
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static const char* hostname_usage = "hostname [OPTION] {hostname | -F file}\n\n"
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static const char* hostname_usage =
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"hostname [OPTION] {hostname | -F file}\n\n"
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"Get or set the hostname or DNS domain name. If a hostname is given\n"
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"(or a file with the -F parameter), the host name will be set.\n\n"
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"Options:\n"
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"\t-s, --short\t\tshort\n"
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"\t-i, --ip-address\t\taddresses for the hostname\n"
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"\t-d, --domain\t\tDNS domain name\n"
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"If a hostname is given, or a file is given with the -F parameter, the host\n"
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"name will be set\n";
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"\t-s\t\tShort\n"
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"\t-i\t\tAddresses for the hostname\n"
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"\t-d\t\tDNS domain name\n"
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"\t-F file\tUse FILE to specify the hostname\n";
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static char short_opts[] = "sidF:";
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static const struct option long_opts[] = {
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{ "short", no_argument, NULL, 's' },
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{ "ip-address", no_argument, NULL, 'i' },
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{ "domain", no_argument, NULL, 'd' },
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{ NULL, 0, NULL, 0 }
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};
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void do_sethostname(char *s, int isfile)
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{
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@ -75,11 +72,9 @@ void do_sethostname(char *s, int isfile)
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int hostname_main(int argc, char **argv)
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{
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int c;
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int opt_short = 0;
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int opt_domain = 0;
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int opt_ip = 0;
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int opt_file = 0;
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struct hostent *h;
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char *filename = NULL;
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char buf[255];
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@ -87,19 +82,36 @@ int hostname_main(int argc, char **argv)
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if (argc < 1) usage(hostname_usage);
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while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
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switch (c) {
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case 's': opt_short = 1; break;
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case 'i': opt_ip = 1; break;
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case 'd': opt_domain = 1; break;
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case 'F': opt_file = 1; filename = optarg; break;
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default: usage(hostname_usage);
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while (--argc > 0 && **(++argv) == '-') {
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while (*(++(*argv))) {
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switch (**argv) {
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case 's':
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opt_short = 1;
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break;
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case 'i':
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opt_ip = 1;
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break;
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case 'd':
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opt_domain = 1;
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break;
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case 'F':
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filename = optarg;
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if (--argc == 0) {
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usage(hostname_usage);
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}
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filename = *(++argv);
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break;
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default:
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usage(hostname_usage);
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}
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if (filename!=NULL)
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break;
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}
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}
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if (optind < argc) {
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do_sethostname(argv[optind], 0);
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} else if (opt_file) {
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if (argc >= 1) {
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do_sethostname(*argv, 0);
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} else if (filename!=NULL) {
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do_sethostname(filename, 1);
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} else {
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gethostname(buf, 255);
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@ -121,6 +133,6 @@ int hostname_main(int argc, char **argv)
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printf("%s\n", buf);
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}
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}
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return 0;
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exit( 0);
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}
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