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Commit bdb6bec8 authored by Marcus Meissner's avatar Marcus Meissner Committed by Alexandre Julliard
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Reimplemented winsock asynchronous DNS services. No longer use a

fork()ed process, but either a service thread or inline blocking calls for non-threading architectures. (Makes Free Agent16 work again.)
parent 5d2a6588
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Showing with 527 additions and 870 deletions
include/winsock.h
View file @ bdb6bec8
......@@ -526,48 +526,6 @@ typedef struct timeval TIMEVAL, *PTIMEVAL, *LPTIMEVAL;
#define WS_DUP_OFFSET 0x0002 /* internal pointers are offsets */
#define WS_DUP_SEGPTR 0x0004 /* internal pointers are SEGPTRs */
/* by default, internal pointers are linear */
/* async DNS op flags */
#define AOP_IO 0x0000001 /* aop_control paramaters */
#define AOP_CONTROL_REMOVE 0x0000000 /* aop_control return values */
#define AOP_CONTROL_KEEP 0x0000001
typedef struct __aop
{
/* AOp header */
struct __aop *next, *prev;
int fd[2]; /* pipe */
int (*aop_control)(struct __aop*, int); /* SIGIO handler */
pid_t pid; /* child process pid */
/* custom data */
HWND hWnd; /* hWnd to post */
UINT uMsg; /* uMsg message to. */
union
{
SEGPTR seg_base;
LPSTR lin_base;
void* ptr_base;
} b; /* buffer to copy result to */
UINT buflen;
UINT flags; /* WSMSG_ASYNC_... */
} ws_async_op;
#define WSMSG_ASYNC_HOSTBYNAME 0x0001
#define WSMSG_ASYNC_HOSTBYADDR 0x0002
#define WSMSG_ASYNC_PROTOBYNAME 0x0010
#define WSMSG_ASYNC_PROTOBYNUM 0x0020
#define WSMSG_ASYNC_SERVBYNAME 0x0100
#define WSMSG_ASYNC_SERVBYPORT 0x0200
#define WSMSG_ASYNC_RQMASK 0x0fff
#define WSMSG_WIN32_AOP 0x1000
#define WSMSG_DEAD_AOP 0x8000
typedef struct __sop /* WSAAsyncSelect() control struct */
{
......@@ -620,25 +578,6 @@ int WS_dup_he(LPWSINFO pwsi, struct hostent* p_he, int flag);
int WS_dup_pe(LPWSINFO pwsi, struct protoent* p_pe, int flag);
int WS_dup_se(LPWSINFO pwsi, struct servent* p_se, int flag);
void WS_do_async_gethost(LPWSINFO, unsigned);
void WS_do_async_getproto(LPWSINFO, unsigned);
void WS_do_async_getserv(LPWSINFO, unsigned);
/* winsock_dns.c */
extern HANDLE16 __WSAsyncDBQuery(LPWSINFO pwsi, HWND hWnd, UINT uMsg,
INT type, LPCSTR init, INT len, LPCSTR proto, void* sbuf,
INT buflen, UINT flag);
int WINSOCK_async_io(int fd, int async);
int WINSOCK_unblock_io(int fd, int noblock);
int WINSOCK_check_async_op(ws_async_op* p_aop);
void WINSOCK_link_async_op(ws_async_op* p_aop);
void WINSOCK_unlink_async_op(ws_async_op* p_aop);
int WINSOCK_cancel_async_op(ws_async_op* p_aop);
void WINSOCK_cancel_task_aops(HTASK16, void (*__memfree)(void*) );
BOOL WINSOCK_HandleIO(int* fd_max, int num_pending, fd_set pending_set[3], fd_set master_set[3] );
void WINSOCK_Shutdown(void);
UINT16 wsaErrno(void);
......
misc/Makefile.in
View file @ bdb6bec8
......@@ -38,7 +38,7 @@ C_SRCS = \
win32s16.c \
windebug.c \
winsock.c \
winsock_dns.c \
winsock_async.c \
wsprintf.c \
xmalloc.c
......
misc/winsock.c
View file @ bdb6bec8
......@@ -122,6 +122,18 @@ static int _px_tcp_ops[] = {
static int _check_ws(LPWSINFO pwsi, ws_socket* pws);
static char* _check_buffer(LPWSINFO pwsi, int size);
/* ----------------------------------- non-blocking I/O */
static int WINSOCK_unblock_io(int fd, int noblock)
{
int fd_flags;
fd_flags = fcntl(fd, F_GETFL, 0);
if (fcntl(fd, F_SETFL, (noblock)? fd_flags | O_NONBLOCK
: fd_flags & ~O_NONBLOCK ) != -1) return 0;
return -1;
}
/***********************************************************************
* convert_sockopt()
*
......@@ -413,8 +425,6 @@ INT WINAPI WSAStartup(UINT wVersionRequested, LPWSADATA lpWSAData)
void WINSOCK_Shutdown()
{
/* Called on exit(), has to remove all outstanding async DNS processes. */
WINSOCK_cancel_task_aops( 0, __ws_memfree );
}
INT WINSOCK_DeleteTaskWSI( TDB* pTask, LPWSINFO pwsi )
......@@ -429,10 +439,6 @@ INT WINSOCK_DeleteTaskWSI( TDB* pTask, LPWSINFO pwsi )
if( --pwsi->num_startup > 0 ) return 0;
SIGNAL_MaskAsyncEvents( TRUE );
WINSOCK_cancel_task_aops( pTask->hSelf, __ws_memfree );
SIGNAL_MaskAsyncEvents( FALSE );
/* unlink socket control struct */
if( pwsi == _wsi_list )
......@@ -1947,269 +1953,6 @@ INT16 WINAPI WINSOCK_gethostname16(char *name, INT16 namelen)
/* ------------------------------------- Windows sockets extensions -- *
* *
* ------------------------------------------------------------------- */
/***********************************************************************
* WSAAsyncGetHostByAddr() (WINSOCK.102)
*/
HANDLE16 WINAPI WSAAsyncGetHostByAddr16(HWND16 hWnd, UINT16 uMsg, LPCSTR addr,
INT16 len, INT16 type, SEGPTR sbuf, INT16 buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %04x, addr %08x[%i]\n",
(unsigned)pwsi, hWnd, uMsg, (unsigned)addr , len );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, type, addr, len,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYADDR );
return 0;
}
/***********************************************************************
* WSAAsyncGetHostByAddr() (WSOCK32.102)
*/
HANDLE WINAPI WSAAsyncGetHostByAddr(HWND hWnd, UINT uMsg, LPCSTR addr,
INT len, INT type, LPSTR sbuf, INT buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, addr %08x[%i]\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg, (unsigned)addr , len );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, type, addr, len,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYADDR | WSMSG_WIN32_AOP);
return 0;
}
/***********************************************************************
* WSAAsyncGetHostByName() (WINSOCK.103)
*/
HANDLE16 WINAPI WSAAsyncGetHostByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
SEGPTR sbuf, INT16 buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %04x, host %s,
buffer %i\n", (unsigned)pwsi, hWnd, uMsg, (name)?name:NULL_STRING, (int)buflen );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYNAME );
return 0;
}
/***********************************************************************
* WSAAsyncGetHostByName32() (WSOCK32.103)
*/
HANDLE WINAPI WSAAsyncGetHostByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPSTR sbuf, INT buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, host %s, buffer %i\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg,
(name)?name:NULL_STRING, (int)buflen );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_HOSTBYNAME | WSMSG_WIN32_AOP);
return 0;
}
/***********************************************************************
* WSAAsyncGetProtoByName() (WINSOCK.105)
*/
HANDLE16 WINAPI WSAAsyncGetProtoByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
SEGPTR sbuf, INT16 buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, protocol %s\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg, (name)?name:NULL_STRING );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNAME );
return 0;
}
/***********************************************************************
* WSAAsyncGetProtoByName() (WSOCK32.105)
*/
HANDLE WINAPI WSAAsyncGetProtoByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPSTR sbuf, INT buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, protocol %s\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg, (name)?name:NULL_STRING );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, name, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNAME | WSMSG_WIN32_AOP);
return 0;
}
/***********************************************************************
* WSAAsyncGetProtoByNumber() (WINSOCK.104)
*/
HANDLE16 WINAPI WSAAsyncGetProtoByNumber16(HWND16 hWnd, UINT16 uMsg, INT16 number,
SEGPTR sbuf, INT16 buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %04x, num %i\n",
(unsigned)pwsi, hWnd, uMsg, number );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, number, NULL, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNUM );
return 0;
}
/***********************************************************************
* WSAAsyncGetProtoByNumber() (WSOCK32.104)
*/
HANDLE WINAPI WSAAsyncGetProtoByNumber(HWND hWnd, UINT uMsg, INT number,
LPSTR sbuf, INT buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, num %i\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg, number );
if( pwsi )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, number, NULL, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_PROTOBYNUM | WSMSG_WIN32_AOP);
return 0;
}
/***********************************************************************
* WSAAsyncGetServByName() (WINSOCK.107)
*/
HANDLE16 WINAPI WSAAsyncGetServByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
LPCSTR proto, SEGPTR sbuf, INT16 buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %04x, name %s, proto %s\n",
(unsigned)pwsi, hWnd, uMsg,
(name)?name:NULL_STRING, (proto)?proto:NULL_STRING );
if( pwsi )
{
int i = wsi_strtolo( pwsi, name, proto );
if( i )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, pwsi->buffer, 0,
pwsi->buffer + i, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYNAME );
}
return 0;
}
/***********************************************************************
* WSAAsyncGetServByName() (WSOCK32.107)
*/
HANDLE WINAPI WSAAsyncGetServByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPCSTR proto, LPSTR sbuf, INT buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, name %s, proto %s\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg,
(name)?name:NULL_STRING, (proto)?proto:NULL_STRING );
if( pwsi )
{
int i = wsi_strtolo( pwsi, name, proto );
if( i )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, 0, pwsi->buffer, 0,
pwsi->buffer + i, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYNAME | WSMSG_WIN32_AOP);
}
return 0;
}
/***********************************************************************
* WSAAsyncGetServByPort() (WINSOCK.106)
*/
HANDLE16 WINAPI WSAAsyncGetServByPort16(HWND16 hWnd, UINT16 uMsg, INT16 port,
LPCSTR proto, SEGPTR sbuf, INT16 buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %04x, port %i, proto %s\n",
(unsigned)pwsi, hWnd, uMsg, port, (proto)?proto:NULL_STRING );
if( pwsi )
{
int i = wsi_strtolo( pwsi, proto, NULL );
if( i )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, port, pwsi->buffer, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYPORT );
}
return 0;
}
/***********************************************************************
* WSAAsyncGetServByPort() (WSOCK32.106)
*/
HANDLE WINAPI WSAAsyncGetServByPort(HWND hWnd, UINT uMsg, INT port,
LPCSTR proto, LPSTR sbuf, INT buflen)
{
LPWSINFO pwsi = wsi_find(GetCurrentTask());
TRACE(winsock, "(%08x): hwnd %04x, msg %08x, port %i, proto %s\n",
(unsigned)pwsi, (HWND16)hWnd, uMsg, port, (proto)?proto:NULL_STRING );
if( pwsi )
{
int i = wsi_strtolo( pwsi, proto, NULL );
if( i )
return __WSAsyncDBQuery(pwsi, hWnd, uMsg, port, pwsi->buffer, 0,
NULL, (void*)sbuf, buflen, WSMSG_ASYNC_SERVBYPORT | WSMSG_WIN32_AOP);
}
return 0;
}
/***********************************************************************
* WSACancelAsyncRequest() (WINSOCK.108)(WSOCK32.109)
*/
INT WINAPI WSACancelAsyncRequest(HANDLE hAsyncTaskHandle)
{
INT retVal = SOCKET_ERROR;
LPWSINFO pwsi = wsi_find(GetCurrentTask());
ws_async_op* p_aop = (ws_async_op*)WS_HANDLE2PTR(hAsyncTaskHandle);
TRACE(winsock, "(%08x): handle %08x\n",
(unsigned)pwsi, hAsyncTaskHandle);
if( pwsi )
{
SIGNAL_MaskAsyncEvents( TRUE ); /* block SIGIO */
if( WINSOCK_cancel_async_op(p_aop) )
{
WS_FREE(p_aop);
pwsi->num_async_rq--;
retVal = 0;
}
else pwsi->err = WSAEINVAL;
SIGNAL_MaskAsyncEvents( FALSE );
}
return retVal;
}
INT16 WINAPI WSACancelAsyncRequest16(HANDLE16 hAsyncTaskHandle)
{
return (HANDLE16)WSACancelAsyncRequest((HANDLE)hAsyncTaskHandle);
}
/***********************************************************************
* WSAAsyncSelect() (WINSOCK.101)(WSOCK32.101)
*/
......
misc/winsock_async.c 0 → 100644
View file @ bdb6bec8
/* Async WINSOCK DNS services
*
* (C) 1993,1994,1996,1997 John Brezak, Erik Bos, Alex Korobka.
* (C) 1999 Marcus Meissner
*
* NOTE: If you make any changes to fix a particular app, make sure
* they don't break something else like Netscape or telnet and ftp
* clients and servers (www.winsite.com got a lot of those).
*
* FIXME:
* - Add WSACancel* and correct handle management. (works rather well for
* now without it.)
* - Verify & Check all calls for correctness
* (currently only WSAGetHostByName*, WSAGetServByPort* calls)
* - Check error returns.
* - mirc/mirc32 Finger @linux.kernel.org sometimes fails in threaded mode.
* (not sure why)
* - This implementation did ignore the "NOTE:" section above (since the
* whole stuff did not work anyway to other changes).
*/
#include "config.h"
#include <string.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/ioctl.h>
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#if defined(__svr4__)
#include <sys/ioccom.h>
#include <sys/sockio.h>
#endif
#if defined(__EMX__)
# include <sys/so_ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#include <sys/msg.h>
#include <sys/wait.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <ctype.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/errno.h>
#include <netdb.h>
#include <unistd.h>
#include <stdlib.h>
#ifdef HAVE_ARPA_NAMESER_H
# include <arpa/nameser.h>
#endif
#ifdef HAVE_RESOLV_H
# include <resolv.h>
#endif
#include "wine/winbase16.h"
#include "winsock.h"
#include "winnt.h"
#include "heap.h"
#include "task.h"
#include "message.h"
#include "miscemu.h"
#include "debug.h"
#pragma pack(4)
/* ----------------------------------- helper functions - */
static int list_size(char** l, int item_size)
{
int i,j = 0;
if(l)
{ for(i=0;l[i];i++)
j += (item_size) ? item_size : strlen(l[i]) + 1;
j += (i + 1) * sizeof(char*); }
return j;
}
static int list_dup(char** l_src, char* ref, char* base, int item_size)
{
/* base is either either equal to ref or 0 or SEGPTR */
char* p = ref;
char** l_to = (char**)ref;
int i,j,k;
for(j=0;l_src[j];j++) ;
p += (j + 1) * sizeof(char*);
for(i=0;i<j;i++)
{ l_to[i] = base + (p - ref);
k = ( item_size ) ? item_size : strlen(l_src[i]) + 1;
memcpy(p, l_src[i], k); p += k; }
l_to[i] = NULL;
return (p - ref);
}
/* ----- hostent */
static int hostent_size(struct hostent* p_he)
{
int size = 0;
if( p_he )
{ size = sizeof(struct hostent);
size += strlen(p_he->h_name) + 1;
size += list_size(p_he->h_aliases, 0);
size += list_size(p_he->h_addr_list, p_he->h_length ); }
return size;
}
/* Copy hostent to p_to, fix up inside pointers using p_base (different for
* Win16 (linear vs. segmented). Return -neededsize on overrun.
*/
static int WS_copy_he(struct ws_hostent *p_to,char *p_base,int t_size,struct hostent* p_he)
{
char* p_name,*p_aliases,*p_addr,*p;
int size=hostent_size(p_he)+(sizeof(struct ws_hostent)-sizeof(struct hostent));
if (t_size < size)
return -size;
p = (char*)p_to;
p += sizeof(struct ws_hostent);
p_name = p;
strcpy(p, p_he->h_name); p += strlen(p) + 1;
p_aliases = p;
p += list_dup(p_he->h_aliases, p, p_base + (p - (char*)p_to), 0);
p_addr = p;
list_dup(p_he->h_addr_list, p, p_base + (p - (char*)p_to), p_he->h_length);
p_to->h_addrtype = (INT16)p_he->h_addrtype;
p_to->h_length = (INT16)p_he->h_length;
p_to->h_name = (SEGPTR)(p_base + (p_name - (char*)p_to));
p_to->h_aliases = (SEGPTR)(p_base + (p_aliases - (char*)p_to));
p_to->h_addr_list = (SEGPTR)(p_base + (p_addr - (char*)p_to));
return size;
}
/* ----- protoent */
static int protoent_size(struct protoent* p_pe)
{
int size = 0;
if( p_pe )
{ size = sizeof(struct protoent);
size += strlen(p_pe->p_name) + 1;
size += list_size(p_pe->p_aliases, 0); }
return size;
}
/* Copy protoent to p_to, fix up inside pointers using p_base (different for
* Win16 (linear vs. segmented). Return -neededsize on overrun.
*/
static int WS_copy_pe(struct ws_protoent *p_to,char *p_base,int t_size,struct protoent* p_pe)
{
char* p_name,*p_aliases,*p;
int size=protoent_size(p_pe)+(sizeof(struct ws_protoent)-sizeof(struct protoent));
if (t_size < size)
return -size;
p = (char*)p_to;
p += sizeof(struct ws_protoent);
p_name = p;
strcpy(p, p_pe->p_name); p += strlen(p) + 1;
p_aliases = p;
list_dup(p_pe->p_aliases, p, p_base + (p - (char*)p_to), 0);
p_to->p_proto = (INT16)p_pe->p_proto;
p_to->p_name = (SEGPTR)(p_base) + (p_name - (char*)p_to);
p_to->p_aliases = (SEGPTR)((p_base) + (p_aliases - (char*)p_to));
return size;
}
/* ----- servent */
static int servent_size(struct servent* p_se)
{
int size = 0;
if( p_se ) {
size += sizeof(struct servent);
size += strlen(p_se->s_proto) + strlen(p_se->s_name) + 2;
size += list_size(p_se->s_aliases, 0);
}
return size;
}
/* Copy servent to p_to, fix up inside pointers using p_base (different for
* Win16 (linear vs. segmented). Return -neededsize on overrun.
*/
static int WS_copy_se(struct ws_servent *p_to,char *p_base,int t_size,struct servent* p_se)
{
char* p_name,*p_aliases,*p_proto,*p;
int size = servent_size(p_se)+(sizeof(struct ws_servent)-sizeof(struct servent));
if (t_size < size )
return -size;
p = (char*)p_to;
p += sizeof(struct ws_servent);
p_name = p;
strcpy(p, p_se->s_name); p += strlen(p) + 1;
p_proto = p;
strcpy(p, p_se->s_proto); p += strlen(p) + 1;
p_aliases = p;
list_dup(p_se->s_aliases, p, p_base + (p - (char*)p_to), 0);
p_to->s_port = (INT16)p_se->s_port;
p_to->s_name = (SEGPTR)(p_base + (p_name - (char*)p_to));
p_to->s_proto = (SEGPTR)(p_base + (p_proto - (char*)p_to));
p_to->s_aliases = (SEGPTR)(p_base + (p_aliases - (char*)p_to));
return size;
}
static HANDLE __ws_async_handle = 0xdead;
/* Generic async query struct. we use symbolic names for the different queries
* for readability.
*/
typedef struct _async_query {
HWND16 hWnd;
UINT16 uMsg;
LPCSTR ptr1;
#define host_name ptr1
#define host_addr ptr1
#define serv_name ptr1
#define proto_name ptr1
LPCSTR ptr2;
#define serv_proto ptr2
int int1;
#define host_len int1
#define proto_number int1
#define serv_port int1
int int2;
#define host_type int2
SEGPTR sbuf;
INT16 sbuflen;
HANDLE16 async_handle;
int flags;
#define AQ_WIN16 0
#define AQ_WIN32 4
#define HB_WIN32(hb) (hb->flags & AQ_WIN32)
#define AQ_NUMBER 0
#define AQ_NAME 8
#define AQ_GETHOST 0
#define AQ_GETPROTO 1
#define AQ_GETSERV 2
#define AQ_GETMASK 3
int qt;
} async_query;
/****************************************************************************
* The async query function.
*
* It is either called as a thread startup routine or directly. It has
* to free the passed arg from the process heap and PostMessageA the async
* result or the error code.
*
* FIXME:
* - errorhandling not verified.
*/
static DWORD WINAPI _async_queryfun(LPVOID arg) {
async_query *aq = (async_query*)arg;
int size = 0;
WORD fail = 0;
char *targetptr = (HB_WIN32(aq)?(char*)aq->sbuf:(char*)PTR_SEG_TO_LIN(aq->sbuf));
switch (aq->flags & AQ_GETMASK) {
case AQ_GETHOST: {
struct hostent *he;
struct ws_hostent *wshe = (struct ws_hostent*)targetptr;
he = (aq->flags & AQ_NAME) ?
gethostbyname(aq->host_name):
gethostbyaddr(aq->host_addr,aq->host_len,aq->host_type);
if (he) {
size = WS_copy_he(wshe,(char*)aq->sbuf,aq->sbuflen,he);
if (size < 0) {
fail = WSAENOBUFS;
size = -size;
}
} else {
fail = WSAENOBUFS;
}
}
break;
case AQ_GETPROTO: {
struct protoent *pe;
struct ws_protoent *wspe = (struct ws_protoent*)targetptr;
pe = (aq->flags & AQ_NAME)?
getprotobyname(aq->proto_name) :
getprotobynumber(aq->proto_number);
if (pe) {
size = WS_copy_pe(wspe,(char*)aq->sbuf,aq->sbuflen,pe);
if (size < 0) {
fail = WSAENOBUFS;
size = -size;
}
} else {
fail = WSAENOBUFS;
}
}
break;
case AQ_GETSERV: {
struct servent *se;
struct ws_servent *wsse = (struct ws_servent*)targetptr;
se = (aq->flags & AQ_NAME)?
getservbyname(aq->serv_name,aq->serv_proto) :
getservbyport(aq->serv_port,aq->serv_proto);
if (se) {
size = WS_copy_se(wsse,(char*)aq->sbuf,aq->sbuflen,se);
if (size < 0) {
fail = WSAENOBUFS;
size = -size;
}
} else {
fail = WSAENOBUFS;
}
}
break;
}
PostMessageA(aq->hWnd,aq->uMsg,aq->async_handle,size|(fail<<16));
HeapFree(GetProcessHeap(),0,arg);
return 0;
}
/****************************************************************************
* The main async help function.
*
* It either starts a thread or just calls the function directly for platforms
* with no thread support. This relies on the fact that PostMessage() does
* not actually call the windowproc before the function returns.
*/
static HANDLE16 __WSAsyncDBQuery(
HWND hWnd, UINT uMsg,INT int1,LPCSTR ptr1, INT int2, LPCSTR ptr2,
void *sbuf, INT sbuflen, UINT flags
) {
async_query *aq = HeapAlloc(GetProcessHeap(),0,sizeof(async_query));
HANDLE hthread;
aq->hWnd = hWnd;
aq->uMsg = uMsg;
aq->int1 = int1;
aq->ptr1 = ptr1;
aq->int2 = int2;
aq->ptr2 = ptr2;
aq->async_handle = ++__ws_async_handle;
aq->flags = flags;
aq->sbuf = (SEGPTR)sbuf;
aq->sbuflen = sbuflen;
#if 1
hthread = CreateThread(NULL,NULL,_async_queryfun,aq,0,NULL);
if (hthread==INVALID_HANDLE_VALUE)
#endif
_async_queryfun(aq);
return __ws_async_handle;
}
/***********************************************************************
* WSAAsyncGetHostByAddr() (WINSOCK.102)
*/
HANDLE16 WINAPI WSAAsyncGetHostByAddr16(HWND16 hWnd, UINT16 uMsg, LPCSTR addr,
INT16 len, INT16 type, SEGPTR sbuf, INT16 buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, addr %08x[%i]\n",
hWnd, uMsg, (unsigned)addr , len );
return __WSAsyncDBQuery(hWnd,uMsg,len,addr,type,NULL,(void*)sbuf,buflen,AQ_NUMBER|AQ_WIN16|AQ_GETHOST);
}
/***********************************************************************
* WSAAsyncGetHostByAddr() (WSOCK32.102)
*/
HANDLE WINAPI WSAAsyncGetHostByAddr(HWND hWnd, UINT uMsg, LPCSTR addr,
INT len, INT type, LPSTR sbuf, INT buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, addr %08x[%i]\n",
hWnd, uMsg, (unsigned)addr , len );
return __WSAsyncDBQuery(hWnd,uMsg,len,addr,type,NULL,sbuf,buflen,AQ_NUMBER|AQ_WIN32|AQ_GETHOST);
}
/***********************************************************************
* WSAAsyncGetHostByName() (WINSOCK.103)
*/
HANDLE16 WINAPI WSAAsyncGetHostByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
SEGPTR sbuf, INT16 buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, host %s, buffer %i\n", hWnd, uMsg, (name)?name:"<null>", (int)buflen );
return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,(void*)sbuf,buflen,AQ_NAME|AQ_WIN16|AQ_GETHOST);
}
/***********************************************************************
* WSAAsyncGetHostByName32() (WSOCK32.103)
*/
HANDLE WINAPI WSAAsyncGetHostByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPSTR sbuf, INT buflen)
{
TRACE(winsock, "hwnd %04x, msg %08x, host %s, buffer %i\n",
(HWND16)hWnd, uMsg, (name)?name:"<null>", (int)buflen );
return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,sbuf,buflen,AQ_NAME|AQ_WIN32|AQ_GETHOST);
}
/***********************************************************************
* WSAAsyncGetProtoByName() (WINSOCK.105)
*/
HANDLE16 WINAPI WSAAsyncGetProtoByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
SEGPTR sbuf, INT16 buflen)
{
TRACE(winsock, "hwnd %04x, msg %08x, protocol %s\n",
(HWND16)hWnd, uMsg, (name)?name:"<null>" );
return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,(void*)sbuf,buflen,AQ_GETPROTO|AQ_NAME|AQ_WIN16);
}
/***********************************************************************
* WSAAsyncGetProtoByName() (WSOCK32.105)
*/
HANDLE WINAPI WSAAsyncGetProtoByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPSTR sbuf, INT buflen)
{
TRACE(winsock, "hwnd %04x, msg %08x, protocol %s\n",
(HWND16)hWnd, uMsg, (name)?name:"<null>" );
return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,NULL,sbuf,buflen,AQ_GETPROTO|AQ_NAME|AQ_WIN32);
}
/***********************************************************************
* WSAAsyncGetProtoByNumber() (WINSOCK.104)
*/
HANDLE16 WINAPI WSAAsyncGetProtoByNumber16(HWND16 hWnd,UINT16 uMsg,INT16 number,
SEGPTR sbuf, INT16 buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, num %i\n", hWnd, uMsg, number );
return __WSAsyncDBQuery(hWnd,uMsg,number,NULL,0,NULL,(void*)sbuf,buflen,AQ_GETPROTO|AQ_NUMBER|AQ_WIN16);
}
/***********************************************************************
* WSAAsyncGetProtoByNumber() (WSOCK32.104)
*/
HANDLE WINAPI WSAAsyncGetProtoByNumber(HWND hWnd, UINT uMsg, INT number,
LPSTR sbuf, INT buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, num %i\n", hWnd, uMsg, number );
return __WSAsyncDBQuery(hWnd,uMsg,number,NULL,0,NULL,sbuf,buflen,AQ_GETPROTO|AQ_NUMBER|AQ_WIN32);
}
/***********************************************************************
* WSAAsyncGetServByName() (WINSOCK.107)
*/
HANDLE16 WINAPI WSAAsyncGetServByName16(HWND16 hWnd, UINT16 uMsg, LPCSTR name,
LPCSTR proto, SEGPTR sbuf, INT16 buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, name %s, proto %s\n",
hWnd, uMsg, (name)?name:"<null>", (proto)?proto:"<null>" );
return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,proto,(void*)sbuf,buflen,AQ_GETSERV|AQ_NAME|AQ_WIN16);
}
/***********************************************************************
* WSAAsyncGetServByName() (WSOCK32.107)
*/
HANDLE WINAPI WSAAsyncGetServByName(HWND hWnd, UINT uMsg, LPCSTR name,
LPCSTR proto, LPSTR sbuf, INT buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, name %s, proto %s\n",
hWnd, uMsg, (name)?name:"<null>", (proto)?proto:"<null>" );
return __WSAsyncDBQuery(hWnd,uMsg,0,name,0,proto,sbuf,buflen,AQ_GETSERV|AQ_NAME|AQ_WIN32);
}
/***********************************************************************
* WSAAsyncGetServByPort() (WINSOCK.106)
*/
HANDLE16 WINAPI WSAAsyncGetServByPort16(HWND16 hWnd, UINT16 uMsg, INT16 port,
LPCSTR proto, SEGPTR sbuf, INT16 buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, port %i, proto %s\n",
hWnd, uMsg, port, (proto)?proto:"<null>" );
return __WSAsyncDBQuery(hWnd,uMsg,port,NULL,0,proto,(void*)sbuf,buflen,AQ_GETSERV|AQ_NUMBER|AQ_WIN16);
}
/***********************************************************************
* WSAAsyncGetServByPort() (WSOCK32.106)
*/
HANDLE WINAPI WSAAsyncGetServByPort(HWND hWnd, UINT uMsg, INT port,
LPCSTR proto, LPSTR sbuf, INT buflen)
{
TRACE(winsock, "hwnd %04x, msg %04x, port %i, proto %s\n",
hWnd, uMsg, port, (proto)?proto:"<null>" );
return __WSAsyncDBQuery(hWnd,uMsg,port,NULL,0,proto,sbuf,buflen,AQ_GETSERV|AQ_NUMBER|AQ_WIN32);
}
/***********************************************************************
* WSACancelAsyncRequest() (WINSOCK.108)(WSOCK32.109)
*/
INT WINAPI WSACancelAsyncRequest(HANDLE hAsyncTaskHandle)
{
FIXME(winsock, "(%08x),stub\n", hAsyncTaskHandle);
return 0;
}
INT16 WINAPI WSACancelAsyncRequest16(HANDLE16 hAsyncTaskHandle)
{
return (HANDLE16)WSACancelAsyncRequest((HANDLE)hAsyncTaskHandle);
}
misc/winsock_dns.c deleted 100644 → 0
View file @ 5d2a6588
/*
* asynchronous DNS services
*
* (C) 1996,1997 Alex Korobka.
*
* TODO: Fork dns lookup helper during the startup (with a pipe
* for communication) and make it fork for a database request
* instead of forking the main process (i.e. something like
* Netscape 4.0).
*/
#include "config.h"
#include <assert.h>
#include <unistd.h>
#include <string.h>
#include <signal.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/msg.h>
#include <sys/wait.h>
#include <errno.h>
#ifdef __EMX__
# include <sys/so_ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
# include <sys/param.h>
#endif
#ifdef HAVE_SYS_FILIO_H
# include <sys/filio.h>
#endif
#ifdef HAVE_SYS_FILE_H
# include <sys/file.h>
#endif
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#ifdef HAVE_ARPA_NAMESER_H
# include <arpa/nameser.h>
#endif
#ifdef HAVE_RESOLV_H
# include <resolv.h>
#endif
#include "wine/winuser16.h"
#include "winsock.h"
#include "heap.h"
#include "ldt.h"
#include "message.h"
#include "miscemu.h"
#include "async.h"
#include "debug.h"
static void WINSOCK_async_handler(int unixfd,void *private);
/* async DNS op control struct */
typedef struct
{
ws_async_op* ws_aop;
char* buffer;
int type;
union
{
char* init;
char* name;
char* addr;
} rq;
unsigned ilength;
} ws_async_ctl;
extern HANDLE16 __ws_gethandle( void* ptr );
extern void* __ws_memalloc( int size );
extern void __ws_memfree( void* ptr );
/* NOTE: ws_async_op list is traversed inside the SIGIO handler! */
static ws_async_op* __async_op_list = NULL;
static void fixup_wshe(struct ws_hostent* p_wshe, void* base);
static void fixup_wspe(struct ws_protoent* p_wspe, void* base);
static void fixup_wsse(struct ws_servent* p_wsse, void* base);
/* ----------------------------------- async/non-blocking I/O */
int WINSOCK_unblock_io(int fd, int noblock)
{
int fd_flags;
fd_flags = fcntl(fd, F_GETFL, 0);
if (fcntl(fd, F_SETFL, (noblock)? fd_flags | O_NONBLOCK
: fd_flags & ~O_NONBLOCK ) != -1) return 0;
return -1;
}
int WINSOCK_check_async_op(ws_async_op* p_aop)
{
ws_async_op* p = __async_op_list;
while( p ) if( p == p_aop ) return 1;
else p = p->next;
return 0;
}
int WINSOCK_cancel_async_op(ws_async_op* p_aop)
{
/* SIGIO unsafe! */
if( WINSOCK_check_async_op(p_aop) )
{
if( !(p_aop->flags & WSMSG_DEAD_AOP) )
{
kill(p_aop->pid, SIGKILL);
waitpid(p_aop->pid, NULL, 0); /* just in case */
close(p_aop->fd[0]);
}
WINSOCK_unlink_async_op(p_aop);
EVENT_DeleteIO( p_aop->fd[0], EVENT_IO_READ );
p_aop->flags = 0;
p_aop->hWnd = p_aop->uMsg = 0;
return 1;
}
return 0;
}
void WINSOCK_cancel_task_aops(HTASK16 hTask, void (*__opfree)(void*))
{
/* SIGIO safe, hTask == 0 cancels all outstanding async ops */
int num = 0, num_dead = 0;
ws_async_op* p, *next;
TRACE(winsock," cancelling async DNS requests... \n");
SIGNAL_MaskAsyncEvents( TRUE );
next = __async_op_list;
while( (p = next) )
{
HTASK16 hWndTask = GetWindowTask16(p->hWnd);
next = p->next;
if(!hTask || !hWndTask || (hTask == hWndTask))
{
num++;
if( p->flags & WSMSG_DEAD_AOP )
num_dead++;
WINSOCK_cancel_async_op(p);
if( __opfree ) __opfree(p);
}
}
SIGNAL_MaskAsyncEvents( FALSE );
TRACE(winsock," -> %i total (%i active)\n", num, num - num_dead );
}
void WINSOCK_link_async_op(ws_async_op* p_aop)
{
/* SIGIO safe */
p_aop->prev = NULL;
SIGNAL_MaskAsyncEvents( TRUE );
if( __async_op_list )
{
ws_async_op* p = __async_op_list;
__async_op_list->prev = p_aop;
/* traverse the list and retire dead ops created
* by the signal handler (see below). */
while( p )
{
if( p->flags & WSMSG_DEAD_AOP )
{
ws_async_op* dead = p;
TRACE(winsock,"\treaping dead aop [%08x]\n", (unsigned)p );
p = p->next;
WINSOCK_unlink_async_op( dead );
__ws_memfree( dead );
continue;
}
p = p->next;
}
}
p_aop->next = __async_op_list;
__async_op_list = p_aop;
SIGNAL_MaskAsyncEvents( FALSE );
ASYNC_RegisterFD(p_aop->fd[0],WINSOCK_async_handler,p_aop);
}
void WINSOCK_unlink_async_op(ws_async_op* p_aop)
{
/* SIGIO unsafe! */
if( p_aop == __async_op_list ) __async_op_list = p_aop->next;
else
p_aop->prev->next = p_aop->next;
if( p_aop->next ) p_aop->next->prev = p_aop->prev;
ASYNC_UnregisterFD(p_aop->fd[0],WINSOCK_async_handler);
}
/* ----------------------------------- SIGIO handler -
*
* link_async_op/unlink_async_op allow to install generic
* async IO handlers (provided that aop_control function is defined).
*
* Note: pipe-based handlers must raise explicit SIGIO with kill(2).
*/
static void WINSOCK_async_handler(int unixfd,void *private)
{
ws_async_op* p_aop = (ws_async_op*)private;
if( p_aop->aop_control(p_aop, AOP_IO) == AOP_CONTROL_REMOVE )
{
/* NOTE: memory management is signal-unsafe, therefore
* we can only set a flag to remove this p_aop later on.
*/
p_aop->flags = WSMSG_DEAD_AOP;
close(p_aop->fd[0]);
if( p_aop->pid )
{
kill(p_aop->pid, SIGKILL);
waitpid(p_aop->pid, NULL, WNOHANG);
p_aop->pid = 0;
}
}
}
/* ----------------------------------- getXbyY requests */
/* child process control struct */
static ws_async_ctl async_ctl;
static int aop_control(ws_async_op* p_aop, int flag )
{
unsigned lLength;
/* success: LOWORD(lLength) has the length of the struct
* to read.
* failure: LOWORD(lLength) is zero, HIWORD(lLength) contains
* the error code.
*/
read(p_aop->fd[0], &lLength, sizeof(unsigned));
if( LOWORD(lLength) )
{
if( (int)LOWORD(lLength) <= p_aop->buflen )
{
char* buffer = (p_aop->flags & WSMSG_WIN32_AOP)
? p_aop->b.lin_base : (char*)PTR_SEG_TO_LIN(p_aop->b.seg_base);
read(p_aop->fd[0], buffer, LOWORD(lLength));
switch( p_aop->flags & WSMSG_ASYNC_RQMASK )
{
case WSMSG_ASYNC_HOSTBYNAME:
case WSMSG_ASYNC_HOSTBYADDR:
fixup_wshe((struct ws_hostent*)buffer, p_aop->b.ptr_base); break;
case WSMSG_ASYNC_PROTOBYNAME:
case WSMSG_ASYNC_PROTOBYNUM:
fixup_wspe((struct ws_protoent*)buffer, p_aop->b.ptr_base); break;
case WSMSG_ASYNC_SERVBYNAME:
case WSMSG_ASYNC_SERVBYPORT:
fixup_wsse((struct ws_servent*)buffer, p_aop->b.ptr_base); break;
default:
if( p_aop->flags ) WARN(winsock,"Received unknown async request!\n");
return AOP_CONTROL_REMOVE;
}
}
else lLength = ((UINT)LOWORD(lLength)) | ((unsigned)WSAENOBUFS << 16);
} /* failure */
/* was a __WS_ASYNC_DEBUG statement */
TRACE(winsock, "DNS aop completed: hWnd [%04x], uMsg [%04x], "
"aop [%04x], event [%08lx]\n",
p_aop->hWnd, p_aop->uMsg, __ws_gethandle(p_aop), (LPARAM)lLength);
/* FIXME: update num_async_rq */
EVENT_DeleteIO( p_aop->fd[0], EVENT_IO_READ );
PostMessageA( p_aop->hWnd, p_aop->uMsg, __ws_gethandle(p_aop), (LPARAM)lLength );
return AOP_CONTROL_REMOVE; /* one-shot request */
}
HANDLE16 __WSAsyncDBQuery(LPWSINFO pwsi, HWND hWnd, UINT uMsg, INT type,
LPCSTR init, INT len, LPCSTR proto, void* sbuf, INT buflen, UINT flag)
{
/* queue 'flag' request and fork off its handler */
async_ctl.ws_aop = (ws_async_op*)__ws_memalloc(sizeof(ws_async_op));
if( async_ctl.ws_aop )
{
HANDLE16 handle = __ws_gethandle(async_ctl.ws_aop);
if( pipe(async_ctl.ws_aop->fd) == 0 )
{
async_ctl.rq.init = (char*)init;
async_ctl.ilength = len;
async_ctl.buffer = (char*)proto;
async_ctl.type = type;
async_ctl.ws_aop->hWnd = hWnd;
async_ctl.ws_aop->uMsg = uMsg;
async_ctl.ws_aop->b.ptr_base = sbuf;
async_ctl.ws_aop->buflen = buflen;
async_ctl.ws_aop->flags = flag;
async_ctl.ws_aop->aop_control = &aop_control;
WINSOCK_link_async_op( async_ctl.ws_aop );
EVENT_AddIO( async_ctl.ws_aop->fd[0], EVENT_IO_READ );
pwsi->num_async_rq++;
async_ctl.ws_aop->pid = fork();
if( async_ctl.ws_aop->pid )
{
TRACE(winsock, "\tasync_op = %04x (child %i)\n",
handle, async_ctl.ws_aop->pid);
close(async_ctl.ws_aop->fd[1]); /* write endpoint */
if( async_ctl.ws_aop->pid > 0 )
return __ws_gethandle(async_ctl.ws_aop);
/* fork() failed */
pwsi->num_async_rq--;
EVENT_DeleteIO( async_ctl.ws_aop->fd[0], EVENT_IO_READ );
close(async_ctl.ws_aop->fd[0]);
pwsi->err = WSAEWOULDBLOCK;
}
else
{
extern BOOL THREAD_InitDone;
THREAD_InitDone = FALSE;
/* child process */
close(async_ctl.ws_aop->fd[0]); /* read endpoint */
switch( flag & WSMSG_ASYNC_RQMASK )
{
case WSMSG_ASYNC_HOSTBYADDR:
case WSMSG_ASYNC_HOSTBYNAME:
WS_do_async_gethost(pwsi, flag);
break;
case WSMSG_ASYNC_PROTOBYNUM:
case WSMSG_ASYNC_PROTOBYNAME:
WS_do_async_getproto(pwsi, flag);
break;
case WSMSG_ASYNC_SERVBYPORT:
case WSMSG_ASYNC_SERVBYNAME:
WS_do_async_getserv(pwsi, flag);
break;
}
_exit(0); /* skip atexit()'ed cleanup */
}
}
else pwsi->err = wsaErrno(); /* failed to create pipe */
__ws_memfree((void*)async_ctl.ws_aop);
} else pwsi->err = WSAEWOULDBLOCK;
return 0;
}
static int _async_notify()
{
/* use half-duplex pipe to send variable length packets
* to the parent process */
write(async_ctl.ws_aop->fd[1], &async_ctl.ilength, sizeof(unsigned));
write(async_ctl.ws_aop->fd[1], async_ctl.buffer, async_ctl.ilength );
#ifndef __EMX__
kill(getppid(), SIGIO); /* simulate async I/O */
#endif
/* was a __WS_ASYNC_DEBUG statement */
TRACE(winsock, "handler - notify aop [%d, buf %d]\n",
async_ctl.ilength, async_ctl.ws_aop->buflen);
return 1;
}
static void _async_fail()
{
/* write a DWORD with error code (low word is zero) */
async_ctl.ilength =
(h_errno < 0) ? (unsigned)WSAMAKEASYNCREPLY( 0, wsaErrno() )
: (unsigned)WSAMAKEASYNCREPLY( 0, wsaHerrno() );
write(async_ctl.ws_aop->fd[1], &async_ctl.ilength, sizeof(unsigned) );
#ifndef __EMX__
kill(getppid(), SIGIO); /* simulate async I/O */
#endif
/* was a __WS_ASYNC_DEBUG statement */
TRACE(winsock, "handler - failed aop [%d, buf %d]\n",
async_ctl.ilength, async_ctl.ws_aop->buflen);
}
void dump_ws_hostent_offset(struct ws_hostent* wshe)
{
int i;
char* base = (char*)wshe;
unsigned* ptr;
DUMP("h_name = %08x\t[%s]\n",
(unsigned)wshe->h_name, base + (unsigned)wshe->h_name);
DUMP("h_aliases = %08x\t[%08x]\n",
(unsigned)wshe->h_aliases, (unsigned)(base+(unsigned)wshe->h_aliases));
ptr = (unsigned*)(base + (unsigned)wshe->h_aliases);
for(i = 0; ptr[i]; i++ )
{
DUMP("%i - %08x [%s]\n", i + 1, ptr[i], ((char*)base) + ptr[i]);
}
DUMP("h_length = %i\n", wshe->h_length);
}
void WS_do_async_gethost(LPWSINFO pwsi, unsigned flag )
{
int size = 0;
struct hostent* p_he;
close(async_ctl.ws_aop->fd[0]);
p_he = (flag & WSMSG_ASYNC_HOSTBYNAME)
? gethostbyname(async_ctl.rq.name)
: gethostbyaddr(async_ctl.rq.name,
async_ctl.ilength, async_ctl.type);
TRACE(winsock,"DNS: got hostent for [%s]\n", async_ctl.rq.name );
if( p_he ) /* convert to the Winsock format with internal pointers as offsets */
size = WS_dup_he(pwsi, p_he, WS_DUP_OFFSET |
((flag & WSMSG_WIN32_AOP) ? WS_DUP_LINEAR : WS_DUP_SEGPTR) );
if( size )
{
async_ctl.buffer = (char*)pwsi->he;
async_ctl.ilength = (unsigned)WSAMAKEASYNCREPLY( (UINT16)size, 0 );
_async_notify( flag );
}
else _async_fail();
}
void WS_do_async_getproto(LPWSINFO pwsi, unsigned flag )
{
int size = 0;
struct protoent* p_pe;
close(async_ctl.ws_aop->fd[0]);
p_pe = (flag & WSMSG_ASYNC_PROTOBYNAME)
? getprotobyname(async_ctl.rq.name)
: getprotobynumber(async_ctl.type);
TRACE(winsock,"DNS: got protoent for [%s]\n", async_ctl.rq.name );
if( p_pe ) /* convert to the Winsock format with internal pointers as offsets */
size = WS_dup_pe(pwsi, p_pe, WS_DUP_OFFSET |
((flag & WSMSG_WIN32_AOP) ? WS_DUP_LINEAR : WS_DUP_SEGPTR) );
if( size )
{
async_ctl.buffer = (char*)pwsi->pe;
async_ctl.ilength = (unsigned)WSAMAKEASYNCREPLY( (UINT16)size, 0 );
_async_notify( flag );
}
else _async_fail();
}
void WS_do_async_getserv(LPWSINFO pwsi, unsigned flag )
{
int size = 0;
struct servent* p_se;
close(async_ctl.ws_aop->fd[0]);
p_se = (flag & WSMSG_ASYNC_SERVBYNAME)
? getservbyname(async_ctl.rq.name, async_ctl.buffer)
: getservbyport(async_ctl.type, async_ctl.buffer);
if( p_se ) /* convert to the Winsock format with internal pointers as offsets */
size = WS_dup_se(pwsi, p_se, WS_DUP_OFFSET |
((flag & WSMSG_WIN32_AOP) ? WS_DUP_LINEAR : WS_DUP_SEGPTR) );
if( size )
{
async_ctl.buffer = (char*)pwsi->se;
async_ctl.ilength = (unsigned)WSAMAKEASYNCREPLY( (UINT16)size, 0 );
_async_notify( flag );
}
else _async_fail();
}
/* ----------------------------------- helper functions -
*
* Raw results from the pipe contain internal pointers stored as
* offsets relative to the beginning of the buffer and we need
* to apply a fixup before passing them to applications.
*
* NOTE: It is possible to exploit the fact that fork() doesn't
* change the buffer address by storing fixed up pointers right
* in the handler. However, this will get in the way if we ever
* get around to implementing DNS helper daemon a-la Netscape 4.x.
*/
void fixup_wshe(struct ws_hostent* p_wshe, void* base)
{
/* add 'base' to ws_hostent pointers to convert them from offsets */
int i;
unsigned* p_aliases,*p_addr;
p_aliases = (unsigned*)((char*)p_wshe + (unsigned)p_wshe->h_aliases);
p_addr = (unsigned*)((char*)p_wshe + (unsigned)p_wshe->h_addr_list);
((unsigned)(p_wshe->h_name)) += (unsigned)base;
((unsigned)(p_wshe->h_aliases)) += (unsigned)base;
((unsigned)(p_wshe->h_addr_list)) += (unsigned)base;
for(i=0;p_aliases[i];i++) p_aliases[i] += (unsigned)base;
for(i=0;p_addr[i];i++) p_addr[i] += (unsigned)base;
}
void fixup_wspe(struct ws_protoent* p_wspe, void* base)
{
int i;
unsigned* p_aliases = (unsigned*)((char*)p_wspe + (unsigned)p_wspe->p_aliases);
((unsigned)(p_wspe->p_name)) += (unsigned)base;
((unsigned)(p_wspe->p_aliases)) += (unsigned)base;
for(i=0;p_aliases[i];i++) p_aliases[i] += (unsigned)base;
}
void fixup_wsse(struct ws_servent* p_wsse, void* base)
{
int i;
unsigned* p_aliases = (unsigned*)((char*)p_wsse + (unsigned)p_wsse->s_aliases);
((unsigned)(p_wsse->s_name)) += (unsigned)base;
((p_wsse->s_proto)) += (unsigned)base;
((p_wsse->s_aliases)) += (unsigned)base;
for(i=0;p_aliases[i];i++) p_aliases[i] += (unsigned)base;
}
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