HardenedBSD/usr.sbin/sysinstall/tcpip.c

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/*
* $Id$
*
* Copyright (c) 1995
* Gary J Palmer. 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,
* verbatim and that no modifications are made prior to this
* point in the file.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Gary J Palmer
* for the FreeBSD Project.
* 4. The name of Gary J Palmer or the FreeBSD Project may not be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY GARY J PALMER ``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 GARY J PALMER 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, LIFE 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.
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/param.h>
#include <string.h>
#include <dialog.h>
#include "ui_objects.h"
#include "dir.h"
#include "dialog.priv.h"
#include "colors.h"
#include "rc.h"
static char hostname[256], domainname[256],
ipaddr[32], netmask[32], gateway[32],
dns[32], extras[256];
static int okbutton, cancelbutton;
#define TCP_DIALOG_Y 0
#define TCP_DIALOG_X 8
#define TCP_DIALOG_WIDTH COLS - 16
#define TCP_DIALOG_HEIGHT LINES - 2
/* The names of the available interfaces, for the list */
char *iface_names[MAX_INTERFACE];
typedef struct _interface {
char *name;
Device *dev;
} Interface;
typedef struct _layout {
int y;
int x;
int len;
int maxlen;
char *prompt;
char *help;
void *var;
int type;
void *obj;
} Layout;
static Layout layout[] = {
{ 2, 2, 25, 255,
"Host name:", "The name of your machine on a network, e.g. foo.bar.com",
hostname, STRINGOBJ, NULL },
{ 2, 35, 20, 255,
"Domain name:",
"The name of the domain that your machine is in, e.g. bar.com",
domainname, STRINGOBJ, NULL },
{ 5, 2, 18, 15,
"Gateway:",
"IP address of host forwarding packets to non-local hosts or nets",
gateway, STRINGOBJ, NULL },
{ 5, 35, 18, 15,
"Name server:", "IP address of your local DNS server",
dns, STRINGOBJ, NULL },
{ 8, 2, 10, 6,
"Interface:", "One of potentially several network interfaces",
ifaces, LISTOBJ, NULL },
{ 14, 2, 18, 15,
"IP Address:",
"The IP address to be used for your host - use 127.0.0.1 for loopback",
ipaddr, STRINGOBJ, NULL },
{ 14, 35, 18, 15,
"Netmask:",
"The netmask for your network, e.g. 0xffffff00 for a class C network",
netmask, STRINGOBJ, NULL },
{ 16, 2, 50, 255,
"Extra options:",
"Any options to ifconfig you'd like to specify manually",
extras, STRINGOBJ, NULL },
{ 18, 2, 0, 0,
"OK", "Select this if you are happy with these settings",
&okbutton, BUTTONOBJ, NULL },
{ 18, 15, 0, 0,
"CANCEL", "Select this if you wish to cancel this screen",
&cancelbutton, BUTTONOBJ, NULL },
{ NULL },
};
#define _validByte(b) ((b) > 0 && (b) < 255)
static void
feepout(char *msg)
{
beep();
msgConfirm(msg);
dialog_clear();
refresh();
}
static int
verifyIP(char *ip)
{
int a, b, c, d;
if (ip && sscanf(ip, "%d.%d.%d.%d", &a, &b, &c, &d) == 4 &&
_validByte(a) && _validByte(b) && _validByte(c) &&
_validByte(d))
return 1;
else
return 0;
}
static int
verifySettings(void)
{
if (!hostname[0])
feepout("Must specify a host name of some sort!");
else if (!verifyIP(ipaddr))
feepout("Invalid or missing value for IP address");
else if (gateway[0] && !verifyIP(gateway))
feepout("Invalid gateway IP address specified");
else if (dns[0] && !verifyIP(dns))
feepout("Invalid name server IP address specified");
else if (netmask[0] < '0' || netmask[0] > '9')
feepout("Invalid or missing netmask");
else
return 1;
return 0;
}
/* Call this to initialize the TCP dialog */
void
/* This is it - how to get TCP setup values */
void
tcpOpenDialog(void)
{
WINDOW *ds_win;
ComposeObj *obj = NULL;
ComposeObj *first, *last;
int n=0, quit=FALSE, cancel=FALSE, ret,
max;
char *tmp;
ds_win = newwin(LINES, COLS, 0, 0);
if (ds_win == 0) {
msgFatal("Cannot open TCP/IP dialog window!!");
exit(1);
}
draw_box(ds_win, TCP_DIALOG_Y, TCP_DIALOG_X,
TCP_DIALOG_HEIGHT, TCP_DIALOG_WIDTH,
dialog_attr, border_attr);
wattrset(ds_win, dialog_attr);
mvwaddstr(ds_win, TCP_DIALOG_Y, TCP_DIALOG_X + 20,
" Network Configuration ");
bzero(ipaddr, sizeof(ipaddr));
bzero(netmask, sizeof(netmask));
bzero(extras, sizeof(extras));
tmp = getenv(VAR_HOSTNAME);
if (tmp)
strcpy(hostname, tmp);
else
bzero(hostname, sizeof(hostname));
tmp = getenv(VAR_DOMAINNAME);
if (tmp)
strcpy(domainname, tmp);
else
bzero(domainname, sizeof(domainname));
tmp = getenv(VAR_GATEWAY);
if (tmp)
strcpy(gateway, tmp);
else
bzero(gateway, sizeof(gateway));
tmp = getenv(VAR_NAMESERVER);
if (tmp)
strcpy(dns, tmp);
else
bzero(dns, sizeof(dns));
#define lt layout[n]
while (lt.help != NULL) {
switch (lt.type) {
case STRINGOBJ:
lt.obj = NewStringObj(ds_win, lt.prompt, lt.var,
lt.y + TCP_DIALOG_Y, lt.x + TCP_DIALOG_X,
lt.len, lt.maxlen);
break;
case BUTTONOBJ:
lt.obj = NewButtonObj(ds_win, lt.prompt, lt.var,
lt.y + TCP_DIALOG_Y, lt.x + TCP_DIALOG_X);
break;
case LISTOBJ:
lt.obj = NewListObj(ds_win, lt.prompt, lt.var, "lo0",
lt.y + TCP_DIALOG_Y, lt.x + TCP_DIALOG_X,
4, 12, 1);
default:
printf("Don't support this object yet!\n");
end_dialog();
exit(1);
}
AddObj(&obj, lt.type, (void *) lt.obj);
n++;
}
max = n-1;
last = obj;
while (last->next)
last = last->next;
/* find the first object in the list */
first = obj;
while (first->prev)
first = first->prev;
n = 0;
while (quit != TRUE) {
char help_line[80];
int i, len = strlen(lt.help);
for (i = 0; i < 79; i++)
help_line[i] = (i < len) ? lt.help[i] : ' ';
help_line[i] = '\0';
use_helpline(help_line);
display_helpline(ds_win, LINES - 1, COLS - 1);
ret = PollObj(&obj);
switch (ret) {
case SEL_ESC:
quit=TRUE;
cancel=TRUE;
break;
case KEY_UP:
if (obj->prev !=NULL ) {
obj = obj->prev;
--n;
}
else {
obj = last;
n = max;
}
break;
case KEY_DOWN:
if (obj->next != NULL) {
obj = obj->next;
++n;
}
else {
obj = first;
n=0;
}
break;
case SEL_BUTTON:
if (verifySettings())
quit=TRUE;
break;
case SEL_CR:
case SEL_TAB:
if (n < max)
++n;
else
n = 0;
break;
case SEL_BACKTAB:
if (n)
--n;
else
n = max;
break;
default:
beep();
}
if (n == 1) {
if ((tmp = index(hostname, '.')) != NULL) {
strncpy(domainname, tmp + 1, strlen(tmp + 1));
RefreshStringObj(layout[1].obj);
}
}
}
if (!cancel) {
variable_set2("hostname", hostname);
variable_set2("domainname", domainname);
variable_set2("ip_addr", ipaddr);
variable_set2("ip_gateway", gateway);
}