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This commit is contained in:
Eric Andersen 1999-12-08 04:13:44 +00:00
parent 485b9550fd
commit d29edf34d6
2 changed files with 82 additions and 58 deletions
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68
hostname.c
View File

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

68
networking/hostname.c
View File

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