mirror of
https://github.com/sheumann/hush.git
synced 2024-12-22 14:30:31 +00:00
nslookup -- a work in progress...
This commit is contained in:
John Beppu
parent
04e97024e7
commit
b332e779e6
@ -173,6 +173,9 @@ static const struct Applet applets[] = {
|
||||
#ifdef BB_MV //bin
|
||||
{"mv", mv_main},
|
||||
#endif
|
||||
#ifdef BB_NSLOOKUP //bin
|
||||
{"nslookup", nslookup_main},
|
||||
#endif
|
||||
#ifdef BB_PING //bin
|
||||
{"ping", ping_main},
|
||||
#endif
|
||||
|
||||
@ -173,6 +173,9 @@ static const struct Applet applets[] = {
|
||||
#ifdef BB_MV //bin
|
||||
{"mv", mv_main},
|
||||
#endif
|
||||
#ifdef BB_NSLOOKUP //bin
|
||||
{"nslookup", nslookup_main},
|
||||
#endif
|
||||
#ifdef BB_PING //bin
|
||||
{"ping", ping_main},
|
||||
#endif
|
||||
|
||||
@ -60,6 +60,7 @@
|
||||
//#define BB_MT
|
||||
//#define BB_MTAB
|
||||
#define BB_MV
|
||||
#define BB_NSLOOKUP
|
||||
#define BB_PING
|
||||
#define BB_POWEROFF
|
||||
//#define BB_PRINTF
|
||||
|
||||
@ -106,6 +106,7 @@ extern int more_main(int argc, char** argv);
|
||||
extern int mount_main(int argc, char** argv);
|
||||
extern int mt_main(int argc, char** argv);
|
||||
extern int mv_main(int argc, char** argv);
|
||||
extern int nslookup_main(int argc, char** argv);
|
||||
extern int ping_main(int argc, char **argv);
|
||||
extern int poweroff_main(int argc, char **argv);
|
||||
extern int printf_main(int argc, char** argv);
|
||||
|
||||
168
networking/nslookup.c
Normal file
168
networking/nslookup.c
Normal file
@ -0,0 +1,168 @@
|
||||
/*
|
||||
* Mini nslookup implementation for busybox
|
||||
*
|
||||
*
|
||||
* Copyright (C) 2000 by Lineo, inc.
|
||||
* Written by John Beppu <beppu@lineo.com>
|
||||
*
|
||||
* 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
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include "internal.h"
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <netdb.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/types.h>
|
||||
#include <netinet/in.h>
|
||||
|
||||
|
||||
static const char nslookup_usage[] =
|
||||
"only implementing non-interactive mode\n"
|
||||
"I totally forgot nslookup even had an interactive mode\n"
|
||||
;
|
||||
|
||||
|
||||
/* */
|
||||
static void
|
||||
server_fprint(FILE *dst)
|
||||
{
|
||||
fprintf(dst, "Server: %s\n", "something");
|
||||
fprintf(dst, "Address: %s\n\n", "something");
|
||||
}
|
||||
|
||||
/* only works for IPv4 */
|
||||
static int
|
||||
addr_fprint(char *addr, FILE *dst)
|
||||
{
|
||||
uint8_t split[4];
|
||||
uint32_t ip;
|
||||
uint32_t *x = (uint32_t *) addr;
|
||||
|
||||
ip = ntohl(*x);
|
||||
split[0] = (ip & 0xff000000) >> 24;
|
||||
split[1] = (ip & 0x00ff0000) >> 16;
|
||||
split[2] = (ip & 0x0000ff00) >> 8;
|
||||
split[3] = (ip & 0x000000ff);
|
||||
fprintf (
|
||||
dst, "%d.%d.%d.%d",
|
||||
split[0], split[1], split[2], split[3]
|
||||
);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* */
|
||||
static uint32_t
|
||||
str_to_addr(const char *addr)
|
||||
{
|
||||
uint32_t split[4];
|
||||
uint32_t ip;
|
||||
|
||||
sscanf(addr, "%d.%d.%d.%d",
|
||||
&split[0], &split[1], &split[2], &split[3]);
|
||||
|
||||
/* assuming sscanf worked */
|
||||
ip = (split[0] << 24) |
|
||||
(split[1] << 16) |
|
||||
(split[2] << 8) |
|
||||
(split[3]);
|
||||
|
||||
return htonl(ip);
|
||||
}
|
||||
|
||||
/* */
|
||||
static int
|
||||
addr_list_fprint(char **h_addr_list, FILE *dst)
|
||||
{
|
||||
int i;
|
||||
char *addr_string = (h_addr_list[1])
|
||||
? "Addresses"
|
||||
: "Address";
|
||||
|
||||
fprintf(dst, "%s: ", addr_string);
|
||||
for (i = 0; h_addr_list[i]; i++) {
|
||||
addr_fprint(h_addr_list[i], dst);
|
||||
if (h_addr_list[i+1]) {
|
||||
fprintf(dst, ", ");
|
||||
}
|
||||
}
|
||||
fprintf(dst,"\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* */
|
||||
static struct hostent *
|
||||
lookup_by_name(const char *hostname)
|
||||
{
|
||||
struct hostent *host;
|
||||
|
||||
host = gethostbyname(hostname);
|
||||
if (host) {
|
||||
fprintf(stdout, "Name: %s\n", host->h_name);
|
||||
addr_list_fprint(host->h_addr_list, stdout);
|
||||
} else {
|
||||
herror("crap");
|
||||
}
|
||||
return host;
|
||||
}
|
||||
|
||||
/* */
|
||||
static struct hostent *
|
||||
lookup_by_addr(const char *addr)
|
||||
{
|
||||
struct hostent *host;
|
||||
|
||||
host = gethostbyaddr(addr, 4, AF_INET); /* IPv4 only for now */
|
||||
if (host) {
|
||||
fprintf(stdout, "Name: %s\n", host->h_name);
|
||||
addr_list_fprint(host->h_addr_list, stdout);
|
||||
} else {
|
||||
herror("crap");
|
||||
}
|
||||
return host;
|
||||
}
|
||||
|
||||
/* */
|
||||
static int
|
||||
is_ip_address(const char *s)
|
||||
{
|
||||
while (*s) {
|
||||
if ((isdigit(*s)) || (*s == '.')) { s++; continue; }
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* ________________________________________________________________________ */
|
||||
int
|
||||
nslookup_main(int argc, char **argv)
|
||||
{
|
||||
struct in_addr addr;
|
||||
|
||||
server_fprint(stdout);
|
||||
if (is_ip_address(argv[1])) {
|
||||
addr.s_addr = str_to_addr(argv[1]);
|
||||
lookup_by_addr((char *) &addr);
|
||||
} else {
|
||||
lookup_by_name(argv[1]);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* $Id: nslookup.c,v 1.1 2000/01/29 12:59:01 beppu Exp $ */
|
||||
168
nslookup.c
Normal file
168
nslookup.c
Normal file
@ -0,0 +1,168 @@
|
||||
/*
|
||||
* Mini nslookup implementation for busybox
|
||||
*
|
||||
*
|
||||
* Copyright (C) 2000 by Lineo, inc.
|
||||
* Written by John Beppu <beppu@lineo.com>
|
||||
*
|
||||
* 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
|
||||
* the Free Software Foundation; either version 2 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||||
*
|
||||
*/
|
||||
|
||||
#include "internal.h"
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
#include <netdb.h>
|
||||
#include <sys/socket.h>
|
||||
#include <sys/types.h>
|
||||
#include <netinet/in.h>
|
||||
|
||||
|
||||
static const char nslookup_usage[] =
|
||||
"only implementing non-interactive mode\n"
|
||||
"I totally forgot nslookup even had an interactive mode\n"
|
||||
;
|
||||
|
||||
|
||||
/* */
|
||||
static void
|
||||
server_fprint(FILE *dst)
|
||||
{
|
||||
fprintf(dst, "Server: %s\n", "something");
|
||||
fprintf(dst, "Address: %s\n\n", "something");
|
||||
}
|
||||
|
||||
/* only works for IPv4 */
|
||||
static int
|
||||
addr_fprint(char *addr, FILE *dst)
|
||||
{
|
||||
uint8_t split[4];
|
||||
uint32_t ip;
|
||||
uint32_t *x = (uint32_t *) addr;
|
||||
|
||||
ip = ntohl(*x);
|
||||
split[0] = (ip & 0xff000000) >> 24;
|
||||
split[1] = (ip & 0x00ff0000) >> 16;
|
||||
split[2] = (ip & 0x0000ff00) >> 8;
|
||||
split[3] = (ip & 0x000000ff);
|
||||
fprintf (
|
||||
dst, "%d.%d.%d.%d",
|
||||
split[0], split[1], split[2], split[3]
|
||||
);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* */
|
||||
static uint32_t
|
||||
str_to_addr(const char *addr)
|
||||
{
|
||||
uint32_t split[4];
|
||||
uint32_t ip;
|
||||
|
||||
sscanf(addr, "%d.%d.%d.%d",
|
||||
&split[0], &split[1], &split[2], &split[3]);
|
||||
|
||||
/* assuming sscanf worked */
|
||||
ip = (split[0] << 24) |
|
||||
(split[1] << 16) |
|
||||
(split[2] << 8) |
|
||||
(split[3]);
|
||||
|
||||
return htonl(ip);
|
||||
}
|
||||
|
||||
/* */
|
||||
static int
|
||||
addr_list_fprint(char **h_addr_list, FILE *dst)
|
||||
{
|
||||
int i;
|
||||
char *addr_string = (h_addr_list[1])
|
||||
? "Addresses"
|
||||
: "Address";
|
||||
|
||||
fprintf(dst, "%s: ", addr_string);
|
||||
for (i = 0; h_addr_list[i]; i++) {
|
||||
addr_fprint(h_addr_list[i], dst);
|
||||
if (h_addr_list[i+1]) {
|
||||
fprintf(dst, ", ");
|
||||
}
|
||||
}
|
||||
fprintf(dst,"\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* */
|
||||
static struct hostent *
|
||||
lookup_by_name(const char *hostname)
|
||||
{
|
||||
struct hostent *host;
|
||||
|
||||
host = gethostbyname(hostname);
|
||||
if (host) {
|
||||
fprintf(stdout, "Name: %s\n", host->h_name);
|
||||
addr_list_fprint(host->h_addr_list, stdout);
|
||||
} else {
|
||||
herror("crap");
|
||||
}
|
||||
return host;
|
||||
}
|
||||
|
||||
/* */
|
||||
static struct hostent *
|
||||
lookup_by_addr(const char *addr)
|
||||
{
|
||||
struct hostent *host;
|
||||
|
||||
host = gethostbyaddr(addr, 4, AF_INET); /* IPv4 only for now */
|
||||
if (host) {
|
||||
fprintf(stdout, "Name: %s\n", host->h_name);
|
||||
addr_list_fprint(host->h_addr_list, stdout);
|
||||
} else {
|
||||
herror("crap");
|
||||
}
|
||||
return host;
|
||||
}
|
||||
|
||||
/* */
|
||||
static int
|
||||
is_ip_address(const char *s)
|
||||
{
|
||||
while (*s) {
|
||||
if ((isdigit(*s)) || (*s == '.')) { s++; continue; }
|
||||
return 0;
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* ________________________________________________________________________ */
|
||||
int
|
||||
nslookup_main(int argc, char **argv)
|
||||
{
|
||||
struct in_addr addr;
|
||||
|
||||
server_fprint(stdout);
|
||||
if (is_ip_address(argv[1])) {
|
||||
addr.s_addr = str_to_addr(argv[1]);
|
||||
lookup_by_addr((char *) &addr);
|
||||
} else {
|
||||
lookup_by_name(argv[1]);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* $Id: nslookup.c,v 1.1 2000/01/29 12:59:01 beppu Exp $ */
|
||||
Loading…
Reference in New Issue
Block a user