/*
This file is part of GNUnet.
Copyright (C) 2012 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet 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
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @file gns/w32nsp-resolve.c
* @brief W32 integration for GNS
* @author LRN
*/
/* Instead of including gnunet_common.h */
#define GNUNET_memcpy(dst,src,n) do { if (0 != n) { (void) memcpy (dst,src,n); } } while (0)
#include
#include
#include
#include
#include
#include
#include "gnunet_w32nsp_lib.h"
#include
typedef int (WSPAPI *LPNSPSTARTUP) (LPGUID lpProviderId, LPNSP_ROUTINE lpnspRoutines);
GUID host = {0x0002a800,0,0,{ 0xC0,0,0,0,0,0,0,0x46 }};
GUID ip4 = {0x00090035,0,1,{ 0xc0,0,0,0,0,0,0,0x046}};
GUID ip6 = {0x00090035,0,0x001c, { 0xc0,0,0,0,0,0,0,0x046}};
DEFINE_GUID(W32_DNS, 0x22059D40, 0x7E9E, 0x11CF, 0xAE, 0x5A, 0x00, 0xAA, 0x00, 0xA7, 0x11, 0x2B);
#define DEFINE_DNS_GUID(a,x) DEFINE_GUID(a, 0x00090035, 0x0000, x, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46)
DEFINE_DNS_GUID(SVCID_DNS_TYPE_A, 0x0001);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_NS, 0x0002);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_CNAME, 0x0005);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_SOA, 0x0006);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_PTR, 0x000c);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_MX, 0x000f);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_TEXT, 0x0010);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_AAAA, 0x001c);
DEFINE_DNS_GUID(SVCID_DNS_TYPE_SRV, 0x0021);
DEFINE_GUID(SVCID_HOSTNAME, 0x0002a800, 0x0000, 0x0000, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);
DEFINE_GUID(SVCID_INET_HOSTADDRBYNAME, 0x0002a803, 0x0000, 0x0000, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46);
//
// Utility to turn a list of offsets into a list of addresses. Used
// to convert structures returned as BLOBs.
//
VOID
FixList(PCHAR ** List, PCHAR Base)
{
if(*List)
{
PCHAR * Addr;
Addr = *List = (PCHAR *)( ((DWORD)*List + Base) );
while(*Addr)
{
*Addr = (PCHAR)(((DWORD)*Addr + Base));
Addr++;
}
}
}
//
// Routine to convert a hostent returned in a BLOB to one with
// usable pointers. The structure is converted in-place.
//
VOID
UnpackHostEnt(struct hostent * hostent)
{
PCHAR pch;
pch = (PCHAR)hostent;
if(hostent->h_name)
{
hostent->h_name = (PCHAR)((DWORD)hostent->h_name + pch);
}
FixList(&hostent->h_aliases, pch);
FixList(&hostent->h_addr_list, pch);
}
static void
print_hostent (struct hostent *he)
{
int i;
char **pAlias;
printf("\tOfficial name: %s\n", he->h_name);
for (i=0, pAlias = he->h_aliases; *pAlias != 0; pAlias++) {
printf("\tAlternate name #%d: %s\n", ++i, *pAlias);
}
printf("\tAddress type: ");
switch (he->h_addrtype) {
case AF_INET:
printf("AF_INET\n");
break;
case AF_INET6:
printf("AF_INET6\n");
break;
case AF_NETBIOS:
printf("AF_NETBIOS\n");
break;
default:
printf(" %d\n", he->h_addrtype);
break;
}
printf("\tAddress length: %d\n", he->h_length);
if (he->h_addrtype == AF_INET) {
struct sockaddr_in addr;
memset (&addr, 0, sizeof (addr));
addr.sin_family = AF_INET;
addr.sin_port = 0;
i = 0;
while (he->h_addr_list[i] != 0) {
char buf[1024];
DWORD buflen = 1024;
addr.sin_addr = *(struct in_addr *) he->h_addr_list[i++];
if (NO_ERROR == WSAAddressToStringA ((LPSOCKADDR) &addr, sizeof (addr), NULL, buf, &buflen))
printf("\tIPv4 Address #%d: %s\n", i, buf);
else
printf("\tIPv4 Address #%d: Can't convert: %lu\n", i, GetLastError ());
}
} else if (he->h_addrtype == AF_INET6) {
struct sockaddr_in6 addr;
memset (&addr, 0, sizeof (addr));
addr.sin6_family = AF_INET6;
addr.sin6_port = 0;
i = 0;
while (he->h_addr_list[i] != 0) {
char buf[1024];
DWORD buflen = 1024;
addr.sin6_addr = *(struct in6_addr *) he->h_addr_list[i++];
if (NO_ERROR == WSAAddressToStringA ((LPSOCKADDR) &addr, sizeof (addr), NULL, buf, &buflen))
printf("\tIPv6 Address #%d: %s\n", i, buf);
else
printf("\tIPv6 Address #%d: Can't convert: %lu\n", i, GetLastError ());
}
}
}
int
main (int argc, char **argv)
{
int ret;
int r = 1;
WSADATA wsd;
GUID prov;
GUID sc;
wchar_t *cmdl;
int wargc;
wchar_t **wargv;
if (WSAStartup(MAKEWORD(2,2), &wsd) != 0)
{
fprintf (stderr, "WSAStartup() failed: %lu\n", GetLastError());
return 5;
}
cmdl = GetCommandLineW ();
if (cmdl == NULL)
{
WSACleanup();
return 2;
}
wargv = CommandLineToArgvW (cmdl, &wargc);
if (wargv == NULL)
{
WSACleanup();
return 3;
}
r = 4;
if (wargc == 5)
{
if (wcscmp (wargv[1], L"A") == 0)
sc = SVCID_DNS_TYPE_A;
else if (wcscmp (wargv[1], L"AAAA") == 0)
sc = SVCID_DNS_TYPE_AAAA;
else if (wcscmp (wargv[1], L"name") == 0)
sc = SVCID_HOSTNAME;
else if (wcscmp (wargv[1], L"addr") == 0)
sc = SVCID_INET_HOSTADDRBYNAME;
else
wargc -= 1;
if (wcscmp (wargv[4], L"mswdns") == 0)
prov = W32_DNS;
else if (wcscmp (wargv[4], L"gnunetdns") == 0)
prov = GNUNET_NAMESPACE_PROVIDER_DNS;
else
wargc -= 1;
}
else if (wargc == 3)
{
}
else
{
fprintf (stderr, "Usage: %S \n"
"record type - one of the following: A | AAAA | name | addr\n"
"service name - a string to resolve; \" \" (a space) means 'blank'\n"
"NSP library path - path to libw32nsp\n"
"NSP id - one of the following: mswdns | gnunetdns\n",
wargv[0]);
}
if (wargc == 5)
{
HMODULE nsp;
nsp = LoadLibraryW (wargv[3]);
if (nsp == NULL)
{
fprintf (stderr, "Failed to load library `%S'\n", wargv[3]);
}
else
{
LPNSPSTARTUP startup = (LPNSPSTARTUP) GetProcAddress (nsp, "NSPStartup");
if (startup == NULL)
startup = (LPNSPSTARTUP) GetProcAddress (nsp, "NSPStartup@8");
if (startup != NULL)
{
NSP_ROUTINE api;
api.cbSize = sizeof (api);
ret = startup (&prov, &api);
if (NO_ERROR != ret)
fprintf (stderr, "startup failed: %lu\n", GetLastError ());
else
{
HANDLE lookup;
WSAQUERYSETW search;
char buf[4096];
WSAQUERYSETW *result = (WSAQUERYSETW *) buf;
DWORD resultsize;
DWORD err;
memset (&search, 0, sizeof (search));
search.dwSize = sizeof (search);
search.lpszServiceInstanceName = (wcscmp (wargv[2], L" ") == 0) ? NULL : wargv[2];
search.lpServiceClassId = ≻
search.lpNSProviderId = &prov;
search.dwNameSpace = NS_ALL;
ret = api.NSPLookupServiceBegin (&prov, &search, NULL, LUP_RETURN_ALL, &lookup);
if (ret != NO_ERROR)
{
fprintf (stderr, "lookup start failed\n");
}
else
{
resultsize = 4096;
ret = api.NSPLookupServiceNext (lookup, LUP_RETURN_ALL, &resultsize, result);
err = GetLastError ();
if (ret != NO_ERROR)
{
fprintf (stderr, "lookup next failed: %lu\n", err);
}
else
{
int i;
printf ("Got result:\n");
printf (" lpszServiceInstanceName: %S\n", result->lpszServiceInstanceName ? result->lpszServiceInstanceName : L"NULL");
if (result->lpServiceClassId)
printf (" lpServiceClassId: { 0x%08lX,0x%04X,0x%04X, { 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X } }\n",
result->lpServiceClassId->Data1, result->lpServiceClassId->Data2, result->lpServiceClassId->Data3, result->lpServiceClassId->Data4[0],
result->lpServiceClassId->Data4[1], result->lpServiceClassId->Data4[2], result->lpServiceClassId->Data4[3], result->lpServiceClassId->Data4[4],
result->lpServiceClassId->Data4[5], result->lpServiceClassId->Data4[6], result->lpServiceClassId->Data4[7]);
else
printf (" lpServiceClassId: NULL\n");
if (result->lpVersion)
printf (" lpVersion: 0x%08lX, %d\n", result->lpVersion->dwVersion, result->lpVersion->ecHow);
else
printf (" lpVersion: NULL\n");
printf (" lpszComment: %S\n", result->lpszComment ? result->lpszComment : L"NULL");
printf (" dwNameSpace: %lu\n", result->dwNameSpace);
if (result->lpNSProviderId)
printf (" lpNSProviderId: { 0x%08lX,0x%04X,0x%04X, { 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X, 0x%02X } }\n",
result->lpNSProviderId->Data1, result->lpNSProviderId->Data2, result->lpNSProviderId->Data3, result->lpNSProviderId->Data4[0],
result->lpNSProviderId->Data4[1], result->lpNSProviderId->Data4[2], result->lpNSProviderId->Data4[3], result->lpNSProviderId->Data4[4],
result->lpNSProviderId->Data4[5], result->lpNSProviderId->Data4[6], result->lpNSProviderId->Data4[7]);
else
printf (" lpNSProviderId: NULL\n");
printf (" lpszContext: %S\n", result->lpszContext ? result->lpszContext : L"NULL");
printf (" dwNumberOfProtocols: %lu\n", result->dwNumberOfProtocols);
printf (" lpszQueryString: %S\n", result->lpszQueryString ? result->lpszQueryString : L"NULL");
printf (" dwNumberOfCsAddrs: %lu\n", result->dwNumberOfCsAddrs);
for (i = 0; i < result->dwNumberOfCsAddrs; i++)
{
switch (result->lpcsaBuffer[i].iSocketType)
{
case SOCK_STREAM:
printf (" %d: iSocketType = SOCK_STREAM\n", i);
break;
case SOCK_DGRAM:
printf (" %d: iSocketType = SOCK_DGRAM\n", i);
break;
default:
printf (" %d: iSocketType = %d\n", i, result->lpcsaBuffer[i].iSocketType);
}
switch (result->lpcsaBuffer[i].iProtocol)
{
case IPPROTO_TCP:
printf (" %d: iProtocol = IPPROTO_TCP\n", i);
break;
case IPPROTO_UDP:
printf (" %d: iProtocol = IPPROTO_UDP\n", i);
break;
default:
printf (" %d: iProtocol = %d\n", i, result->lpcsaBuffer[i].iProtocol);
}
switch (result->lpcsaBuffer[i].LocalAddr.lpSockaddr->sa_family)
{
case AF_INET:
printf (" %d: loc family = AF_INET\n", i);
break;
case AF_INET6:
printf (" %d: loc family = AF_INET6\n", i);
break;
default:
printf (" %d: loc family = %hu\n", i, result->lpcsaBuffer[i].LocalAddr.lpSockaddr->sa_family);
}
switch (result->lpcsaBuffer[i].RemoteAddr.lpSockaddr->sa_family)
{
case AF_INET:
printf (" %d: rem family = AF_INET\n", i);
break;
case AF_INET6:
printf (" %d: rem family = AF_INET6\n", i);
break;
default:
printf (" %d: rem family = %hu\n", i, result->lpcsaBuffer[i].RemoteAddr.lpSockaddr->sa_family);
}
char buf[1024];
DWORD buflen = 1024;
if (NO_ERROR == WSAAddressToStringA (result->lpcsaBuffer[i].LocalAddr.lpSockaddr, result->lpcsaBuffer[i].LocalAddr.iSockaddrLength, NULL, buf, &buflen))
printf("\tLocal Address #%d: %s\n", i, buf);
else
printf("\tLocal Address #%d: Can't convert: %lu\n", i, GetLastError ());
buflen = 1024;
if (NO_ERROR == WSAAddressToStringA (result->lpcsaBuffer[i].RemoteAddr.lpSockaddr, result->lpcsaBuffer[i].RemoteAddr.iSockaddrLength, NULL, buf, &buflen))
printf("\tRemote Address #%d: %s\n", i, buf);
else
printf("\tRemote Address #%d: Can't convert: %lu\n", i, GetLastError ());
}
printf (" dwOutputFlags: 0x%08lX\n", result->dwOutputFlags);
printf (" lpBlob: 0x%p\n", result->lpBlob);
if (result->lpBlob)
{
struct hostent *he = malloc (result->lpBlob->cbSize);
if (he != NULL)
{
GNUNET_memcpy (he, result->lpBlob->pBlobData, result->lpBlob->cbSize);
UnpackHostEnt (he);
print_hostent (he);
free (he);
}
}
}
ret = api.NSPLookupServiceEnd (lookup);
if (ret != NO_ERROR)
printf ("NSPLookupServiceEnd() failed: %lu\n", GetLastError ());
}
api.NSPCleanup (&prov);
}
}
FreeLibrary (nsp);
}
}
else if (wargc == 3)
{
int s;
ADDRINFOW hints;
ADDRINFOW *result;
ADDRINFOW *pos;
memset (&hints, 0, sizeof (struct addrinfo));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if (0 != (s = GetAddrInfoW (wargv[2], NULL, &hints, &result)))
{
fprintf (stderr, "Cound not resolve `%S' using GetAddrInfoW: %lu\n",
wargv[2], GetLastError ());
}
else
{
for (pos = result; pos != NULL; pos = pos->ai_next)
{
wchar_t tmpbuf[1024];
DWORD buflen = 1024;
if (0 == WSAAddressToStringW (pos->ai_addr, pos->ai_addrlen, NULL, tmpbuf, &buflen))
fprintf (stderr, "Result:\n"
" flags: 0x%X\n"
" family: 0x%X\n"
" socktype: 0x%X\n"
" protocol: 0x%X\n"
" addrlen: %u\n"
" addr: %S\n"
" canonname: %S\n",
pos->ai_flags,
pos->ai_family,
pos->ai_socktype,
pos->ai_protocol,
pos->ai_addrlen,
tmpbuf,
pos->ai_canonname);
else
fprintf (stderr, "Result:\n"
" flags: 0x%X\n"
" family: 0x%X\n"
" socktype: 0x%X\n"
" protocol: 0x%X\n"
" addrlen: %u\n"
" addr: %S\n"
" canonname: %S\n",
pos->ai_flags,
pos->ai_family,
pos->ai_socktype,
pos->ai_protocol,
pos->ai_addrlen,
L"",
pos->ai_canonname);
}
if (NULL != result)
FreeAddrInfoW (result);
}
}
WSACleanup();
return r;
}