392 lines
8.8 KiB
C
392 lines
8.8 KiB
C
/*++
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Copyright (c) 1994 Microsoft Corporation
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Module Name:
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resolver.h
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Abstract:
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Definitions etc. for Berkeley resolver
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Author:
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Richard L Firth (rfirth) 15-Jun-1996
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Revision History:
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15-Jun-1996 rfirth
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Created
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--*/
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//
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// includes
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//
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#include <nameser.h>
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#include <resolv.h>
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//
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// manifests
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//
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#if PACKETSZ > 1024
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#define MAXPACKET PACKETSZ
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#else
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#define MAXPACKET 1024
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#endif
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#define DBG_RESOLVER DBG_SOCKETS
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#define DBG_VXD_IO DBG_SOCKETS
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#define DLL_PRINT(x) DEBUG_PRINT(SOCKETS, INFO, x)
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#define WS_PRINT(x) DEBUG_PRINT(SOCKETS, INFO, x)
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#define WS_ASSERT INET_ASSERT
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#define DLL_ASSERT INET_ASSERT
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//
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// macros
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//
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#ifndef unix
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#define bcopy(s, d, c) memcpy((u_char *)(d), (u_char *)(s), (c))
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#define bzero(d, l) memset((d), '\0', (l))
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#endif /* unix */
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#define bcmp(s1, s2, l) memcmp((s1), (s2), (l))
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#define IS_DGRAM_SOCK(type) (((type) == SOCK_DGRAM) || ((type) == SOCK_RAW))
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//
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// types
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//
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typedef union {
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HEADER hdr;
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unsigned char buf[MAXPACKET];
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} querybuf;
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typedef union {
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long al;
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char ac;
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} align;
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//extern char VTCPPARM[];
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//extern char NTCPPARM[];
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//extern char TCPPARM[];
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//extern char TTCPPARM[];
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#ifndef unix
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typedef long daddr_t;
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typedef char FAR * caddr_t;
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struct iovec {
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caddr_t iov_base;
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int iov_len;
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};
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struct uio {
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struct iovec *uio_iov;
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int uio_iovcnt;
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int uio_offset;
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int uio_segflg;
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int uio_resid;
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};
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enum uio_rw { UIO_READ, UIO_WRITE };
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#endif /* unix */
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/*
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* Segment flag values (should be enum).
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*/
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#define UIO_USERSPACE 0 /* from user data space */
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#define UIO_SYSSPACE 1 /* from system space */
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#define UIO_USERISPACE 2 /* from user I space */
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#define MAXALIASES 35
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#define MAXADDRS 35
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#define HOSTDB_SIZE (_MAX_PATH + 7) // 7 == strlen("\\hosts") + 1
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#define PROTODB_SIZE (_MAX_PATH + 10)
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#define SERVDB_SIZE (_MAX_PATH + 10)
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typedef struct _WINSOCK_TLS_DATA {
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char * GETHOST_h_addr_ptrs[MAXADDRS + 1];
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struct hostent GETHOST_host;
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char * GETHOST_host_aliases[MAXALIASES];
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char GETHOST_hostbuf[BUFSIZ + 1];
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//struct in_addr GETHOST_host_addr;
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//char GETHOST_HOSTDB[HOSTDB_SIZE];
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//FILE *GETHOST_hostf;
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//char GETHOST_hostaddr[MAXADDRS];
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//char *GETHOST_host_addrs[2];
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//int GETHOST_stayopen;
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//char GETPROTO_PROTODB[PROTODB_SIZE];
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//FILE *GETPROTO_protof;
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//char GETPROTO_line[BUFSIZ+1];
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//struct protoent GETPROTO_proto;
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//char *GETPROTO_proto_aliases[MAXALIASES];
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//int GETPROTO_stayopen;
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//char GETSERV_SERVDB[SERVDB_SIZE];
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//FILE *GETSERV_servf;
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//char GETSERV_line[BUFSIZ+1];
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//struct servent GETSERV_serv;
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//char *GETSERV_serv_aliases[MAXALIASES];
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//int GETSERV_stayopen;
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struct state R_INIT__res;
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//char INTOA_Buffer[18];
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//CSOCKET * DnrSocketHandle;
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//BOOLEAN IsBlocking;
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BOOLEAN IoCancelled;
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//BOOLEAN ProcessingGetXByY;
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BOOLEAN GetXByYCancelled;
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//BOOLEAN EnableWinsNameResolution;
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//BOOLEAN DisableWinsNameResolution;
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//SOCKET SocketHandle;
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//PBLOCKING_HOOK BlockingHook;
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//HANDLE EventHandle;
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//ULONG CreateOptions;
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INT DnrErrorCode;
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//#if DBG
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// ULONG IndentLevel;
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//#endif
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} WINSOCK_TLS_DATA, * LPWINSOCK_TLS_DATA;
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//extern DWORD SockTlsSlot;
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//#define ACCESS_THREAD_DATA(a, file) \
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// (((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))-> \
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// ## file ## _ ## a )
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#define ACCESS_THREAD_DATA(a, file) (lpResolverInfo->file ## _ ## a)
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#define _h_addr_ptrs ACCESS_THREAD_DATA(h_addr_ptrs, GETHOST)
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#define _host ACCESS_THREAD_DATA(host, GETHOST)
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#define _host_aliases ACCESS_THREAD_DATA(host_aliases, GETHOST)
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#define _hostbuf ACCESS_THREAD_DATA(hostbuf, GETHOST)
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#define _host_addr ACCESS_THREAD_DATA(host_addr, GETHOST)
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//#define HOSTDB ACCESS_THREAD_DATA(HOSTDB, GETHOST)
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//#define hostf ACCESS_THREAD_DATA(hostf, GETHOST)
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//#define hostaddr ACCESS_THREAD_DATA(hostaddr, GETHOST)
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//#define host_addrs ACCESS_THREAD_DATA(host_addrs, GETHOST)
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//#define stayopen ACCESS_THREAD_DATA(stayopen, GETHOST)
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#define _res ACCESS_THREAD_DATA( _res, R_INIT )
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//#define SockThreadProcessingGetXByY lpResolverInfo->ProcessingGetXByY
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#define SockThreadGetXByYCancelled lpResolverInfo->GetXByYCancelled
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#define SockDnrSocket lpResolverInfo->DnrSocketHandle
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#define SockThreadDnrErrorCode lpResolverInfo->DnrErrorCode
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//#define SockThreadIsBlocking \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->IsBlocking )
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//
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//#define SockThreadIoCancelled \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->IoCancelled )
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//
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//#define SockThreadProcessingGetXByY \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->ProcessingGetXByY )
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//
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//#define SockThreadGetXByYCancelled \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->GetXByYCancelled )
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//
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//#define SockThreadSocketHandle \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->SocketHandle )
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//
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//#define SockThreadBlockingHook \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->BlockingHook )
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//
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//#define SockThreadEvent \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->EventHandle )
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//
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//#define SockDnrSocket \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->DnrSocketHandle )
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//
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//#define SockEnableWinsNameResolution \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->EnableWinsNameResolution )
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//
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//#define SockDisableWinsNameResolution \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->DisableWinsNameResolution )
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//
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//#define SockCreateOptions \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->CreateOptions )
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//
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//#define SockThreadDnrErrorCode \
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// ( ((LPWINSOCK_TLS_DATA)TlsGetValue( SockTlsSlot ))->DnrErrorCode )
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#define LPSOCK_THREAD LPWINSOCK_TLS_DATA
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#define GET_THREAD_DATA(p) p = InternetGetResolverInfo()
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//#define I_SetLastError SetLastError
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#define DllAllocMem(n) ALLOCATE_MEMORY(LMEM_FIXED, n)
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#define DllFreeMem FREE_MEMORY
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//
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// well-known DHCP VxD ID (from netvxd.h)
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//
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#define VDHCP_Device_ID 0x049A
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//
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// prototypes
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//
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int
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dn_expand(
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IN unsigned char *msg,
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IN unsigned char *eomorig,
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IN unsigned char *comp_dn,
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OUT unsigned char *exp_dn,
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IN int length
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);
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static
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int
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dn_find(
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unsigned char *exp_dn,
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unsigned char *msg,
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unsigned char **dnptrs,
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unsigned char **lastdnptr
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);
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int
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dn_skipname(
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unsigned char *comp_dn,
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unsigned char *eom
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);
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void
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fp_query(
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char *msg,
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FILE *file
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);
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//int
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//gethostname(
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// OUT char *name,
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// IN int namelen
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// );
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void
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p_query(
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char *msg
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);
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extern
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void
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putshort(
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u_short s,
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u_char *msgp
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);
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void
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putlong(
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u_long l,
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u_char *msgp
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);
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void
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_res_close(
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void
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);
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//DWORD
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//sendv(
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// CSOCKET * s, /* socket descriptor */
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// struct iovec *iov, /* array of vectors */
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// int iovcnt /* size of array */
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// );
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//int
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//strcasecmp(
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// char *s1,
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// char *s2
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// );
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//
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//int
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//strncasecmp(
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// char *s1,
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// char *s2,
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// int n
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// );
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//
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//struct hostent *
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//myhostent (
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// void
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// );
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//
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//struct hostent *
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//localhostent (
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// void
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// );
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//
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//struct hostent *
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//dnshostent (
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// void
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// );
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//
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//BOOL
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//querydnsaddrs (
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// IN LPDWORD *Array,
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// IN PVOID Buffer
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// );
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//
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//DWORD
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//BytesInHostent (
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// PHOSTENT Hostent
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// );
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//
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//DWORD
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//CopyHostentToBuffer (
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// char FAR *Buffer,
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// int BufferLength,
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// PHOSTENT Hostent
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// );
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//
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//struct hostent *
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//_gethtbyname (
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// IN char *name
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// );
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BOOL
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OkToUseInternetAsyncGetHostByName(
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VOID
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);
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LPHOSTENT
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InternetAsyncGetHostByName(
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IN LPSTR lpszHostName,
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OUT LPDWORD lpdwTtl
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);
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LPWINSOCK_TLS_DATA
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InternetGetResolverInfo(
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VOID
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);
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LPHOSTENT
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getanswer(
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OUT querybuf *answer,
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OUT int *ttl,
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IN int anslen,
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IN int iquery
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);
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//ULONG
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//SockNbtResolveName (
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// IN PCHAR Name
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// );
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//PHOSTENT
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//QueryHostentCache (
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// IN LPSTR Name OPTIONAL,
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// IN DWORD IpAddress OPTIONAL
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// );
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//FILE *
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//SockOpenNetworkDataBase(
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// IN char *Database,
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// OUT char *Pathname,
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// IN int PathnameLen,
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// IN char *OpenFlags
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// );
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//
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