2242 lines
52 KiB
C++
2242 lines
52 KiB
C++
/* net.cc: network-related routines.
|
||
|
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Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
|
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
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details. */
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/* #define DEBUG_NEST_ON 1 */
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#define __INSIDE_CYGWIN_NET__
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#include "winsup.h"
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#include <errno.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <iphlpapi.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <netdb.h>
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#define USE_SYS_TYPES_FD_SET
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#include <winsock2.h>
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#include "cygerrno.h"
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#include "security.h"
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#include "fhandler.h"
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#include "path.h"
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#include "dtable.h"
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#include "cygheap.h"
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#include "sigproc.h"
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#include "pinfo.h"
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#include "registry.h"
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#include "wsock_event.h"
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||
extern "C"
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{
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int h_errno;
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int __stdcall rcmd (char **ahost, unsigned short inport, char *locuser,
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char *remuser, char *cmd, SOCKET * fd2p);
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int __stdcall rexec (char **ahost, unsigned short inport, char *locuser,
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char *password, char *cmd, SOCKET * fd2p);
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int __stdcall rresvport (int *);
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int sscanf (const char *, const char *, ...);
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} /* End of "C" section */
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LPWSAOVERLAPPED
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wsock_event::prepare ()
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{
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LPWSAOVERLAPPED ret = NULL;
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SetLastError (0);
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if ((event = WSACreateEvent ()) != WSA_INVALID_EVENT)
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{
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memset (&ovr, 0, sizeof ovr);
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ovr.hEvent = event;
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ret = &ovr;
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}
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else if (GetLastError () == ERROR_PROC_NOT_FOUND) /* winsock2 not available */
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WSASetLastError (0);
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debug_printf ("%d = wsock_event::prepare ()", ret);
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return ret;
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}
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int
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wsock_event::wait (int socket, LPDWORD flags)
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{
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int ret = -1;
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WSAEVENT ev[2] = { event, signal_arrived };
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switch (WSAWaitForMultipleEvents (2, ev, FALSE, WSA_INFINITE, FALSE))
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{
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case WSA_WAIT_EVENT_0:
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DWORD len;
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if (WSAGetOverlappedResult (socket, &ovr, &len, FALSE, flags))
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ret = (int) len;
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break;
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case WSA_WAIT_EVENT_0 + 1:
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if (!CancelIo ((HANDLE) socket))
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{
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debug_printf ("CancelIo() %E, fallback to blocking io");
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WSAGetOverlappedResult (socket, &ovr, &len, TRUE, flags);
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}
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else
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WSASetLastError (WSAEINTR);
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break;
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case WSA_WAIT_FAILED:
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break;
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default: /* Should be impossible. *LOL* */
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WSASetLastError (WSAEFAULT);
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break;
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}
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WSACloseEvent (event);
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event = NULL;
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return ret;
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}
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WSADATA wsadata;
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/* Cygwin internal */
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static fhandler_socket *
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get (const int fd)
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{
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cygheap_fdget cfd (fd);
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|
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if (cfd < 0)
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return 0;
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fhandler_socket *const fh = cfd->is_socket ();
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if (!fh)
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set_errno (ENOTSOCK);
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return fh;
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}
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/* Cygwin internal */
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static SOCKET __stdcall
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set_socket_inheritance (SOCKET sock)
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{
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SOCKET osock = sock;
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if (!DuplicateHandle (hMainProc, (HANDLE) sock, hMainProc, (HANDLE *) &sock,
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0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
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system_printf ("DuplicateHandle failed %E");
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else
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debug_printf ("DuplicateHandle succeeded osock %p, sock %p", osock, sock);
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return sock;
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}
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/* htonl: standards? */
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extern "C" unsigned long int
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htonl (unsigned long int x)
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{
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return ((((x & 0x000000ffU) << 24) |
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((x & 0x0000ff00U) << 8) |
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((x & 0x00ff0000U) >> 8) |
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((x & 0xff000000U) >> 24)));
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}
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/* ntohl: standards? */
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extern "C" unsigned long int
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ntohl (unsigned long int x)
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{
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return htonl (x);
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}
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/* htons: standards? */
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extern "C" unsigned short
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htons (unsigned short x)
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{
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return ((((x & 0x000000ffU) << 8) |
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((x & 0x0000ff00U) >> 8)));
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}
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/* ntohs: standards? */
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extern "C" unsigned short
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ntohs (unsigned short x)
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{
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return htons (x);
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}
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/* Cygwin internal */
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static void
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dump_protoent (struct protoent *p)
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{
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if (p)
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debug_printf ("protoent %s %x %x", p->p_name, p->p_aliases, p->p_proto);
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}
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/* exported as inet_ntoa: BSD 4.3 */
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extern "C" char *
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cygwin_inet_ntoa (struct in_addr in)
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{
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#ifdef _MT_SAFE
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#define ntoa_buf _reent_winsup ()->_ntoa_buf
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#else
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static char *ntoa_buf = NULL;
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#endif
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char *res = inet_ntoa (in);
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if (ntoa_buf)
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{
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free (ntoa_buf);
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ntoa_buf = NULL;
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}
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if (res)
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ntoa_buf = strdup (res);
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return ntoa_buf;
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}
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/* exported as inet_addr: BSD 4.3 */
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extern "C" unsigned long
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cygwin_inet_addr (const char *cp)
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{
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if (check_null_str_errno (cp))
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return INADDR_NONE;
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unsigned long res = inet_addr (cp);
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return res;
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}
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/* exported as inet_aton: BSD 4.3
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inet_aton is not exported by wsock32 and ws2_32,
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so it has to be implemented here. */
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extern "C" int
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cygwin_inet_aton (const char *cp, struct in_addr *inp)
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{
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if (check_null_str_errno (cp) || check_null_invalid_struct_errno (inp))
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return 0;
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unsigned long res = inet_addr (cp);
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if (res == INADDR_NONE && strcmp (cp, "255.255.255.255"))
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return 0;
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if (inp)
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inp->s_addr = res;
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||
return 1;
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||
}
|
||
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/* undocumented in wsock32.dll */
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extern "C" unsigned int WINAPI inet_network (const char *);
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extern "C" unsigned int
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cygwin_inet_network (const char *cp)
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{
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||
if (check_null_str_errno (cp))
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return INADDR_NONE;
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unsigned int res = inet_network (cp);
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return res;
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}
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/* inet_netof is in the standard BSD sockets library. It is useless
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for modern networks, since it assumes network values which are no
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longer meaningful, but some existing code calls it. */
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extern "C" unsigned long
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inet_netof (struct in_addr in)
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{
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unsigned long i, res;
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i = ntohl (in.s_addr);
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if (IN_CLASSA (i))
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res = (i & IN_CLASSA_NET) >> IN_CLASSA_NSHIFT;
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else if (IN_CLASSB (i))
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res = (i & IN_CLASSB_NET) >> IN_CLASSB_NSHIFT;
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else
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res = (i & IN_CLASSC_NET) >> IN_CLASSC_NSHIFT;
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return res;
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}
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/* inet_makeaddr is in the standard BSD sockets library. It is
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useless for modern networks, since it assumes network values which
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are no longer meaningful, but some existing code calls it. */
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extern "C" struct in_addr
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inet_makeaddr (int net, int lna)
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{
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unsigned long i;
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struct in_addr in;
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if (net < IN_CLASSA_MAX)
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i = (net << IN_CLASSA_NSHIFT) | (lna & IN_CLASSA_HOST);
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else if (net < IN_CLASSB_MAX)
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i = (net << IN_CLASSB_NSHIFT) | (lna & IN_CLASSB_HOST);
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else if (net < 0x1000000)
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i = (net << IN_CLASSC_NSHIFT) | (lna & IN_CLASSC_HOST);
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else
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i = net | lna;
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in.s_addr = htonl (i);
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return in;
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}
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struct tl
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{
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int w;
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const char *s;
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int e;
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};
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||
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static NO_COPY struct tl errmap[] = {
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{WSAEINTR, "WSAEINTR", EINTR},
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{WSAEWOULDBLOCK, "WSAEWOULDBLOCK", EWOULDBLOCK},
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||
{WSAEINPROGRESS, "WSAEINPROGRESS", EINPROGRESS},
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{WSAEALREADY, "WSAEALREADY", EALREADY},
|
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{WSAENOTSOCK, "WSAENOTSOCK", ENOTSOCK},
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{WSAEDESTADDRREQ, "WSAEDESTADDRREQ", EDESTADDRREQ},
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{WSAEMSGSIZE, "WSAEMSGSIZE", EMSGSIZE},
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{WSAEPROTOTYPE, "WSAEPROTOTYPE", EPROTOTYPE},
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{WSAENOPROTOOPT, "WSAENOPROTOOPT", ENOPROTOOPT},
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{WSAEPROTONOSUPPORT, "WSAEPROTONOSUPPORT", EPROTONOSUPPORT},
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{WSAESOCKTNOSUPPORT, "WSAESOCKTNOSUPPORT", ESOCKTNOSUPPORT},
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{WSAEOPNOTSUPP, "WSAEOPNOTSUPP", EOPNOTSUPP},
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{WSAEPFNOSUPPORT, "WSAEPFNOSUPPORT", EPFNOSUPPORT},
|
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{WSAEAFNOSUPPORT, "WSAEAFNOSUPPORT", EAFNOSUPPORT},
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{WSAEADDRINUSE, "WSAEADDRINUSE", EADDRINUSE},
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{WSAEADDRNOTAVAIL, "WSAEADDRNOTAVAIL", EADDRNOTAVAIL},
|
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{WSAENETDOWN, "WSAENETDOWN", ENETDOWN},
|
||
{WSAENETUNREACH, "WSAENETUNREACH", ENETUNREACH},
|
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{WSAENETRESET, "WSAENETRESET", ENETRESET},
|
||
{WSAECONNABORTED, "WSAECONNABORTED", ECONNABORTED},
|
||
{WSAECONNRESET, "WSAECONNRESET", ECONNRESET},
|
||
{WSAENOBUFS, "WSAENOBUFS", ENOBUFS},
|
||
{WSAEISCONN, "WSAEISCONN", EISCONN},
|
||
{WSAENOTCONN, "WSAENOTCONN", ENOTCONN},
|
||
{WSAESHUTDOWN, "WSAESHUTDOWN", ESHUTDOWN},
|
||
{WSAETOOMANYREFS, "WSAETOOMANYREFS", ETOOMANYREFS},
|
||
{WSAETIMEDOUT, "WSAETIMEDOUT", ETIMEDOUT},
|
||
{WSAECONNREFUSED, "WSAECONNREFUSED", ECONNREFUSED},
|
||
{WSAELOOP, "WSAELOOP", ELOOP},
|
||
{WSAENAMETOOLONG, "WSAENAMETOOLONG", ENAMETOOLONG},
|
||
{WSAEHOSTDOWN, "WSAEHOSTDOWN", EHOSTDOWN},
|
||
{WSAEHOSTUNREACH, "WSAEHOSTUNREACH", EHOSTUNREACH},
|
||
{WSAENOTEMPTY, "WSAENOTEMPTY", ENOTEMPTY},
|
||
{WSAEPROCLIM, "WSAEPROCLIM", EPROCLIM},
|
||
{WSAEUSERS, "WSAEUSERS", EUSERS},
|
||
{WSAEDQUOT, "WSAEDQUOT", EDQUOT},
|
||
{WSAESTALE, "WSAESTALE", ESTALE},
|
||
{WSAEREMOTE, "WSAEREMOTE", EREMOTE},
|
||
{WSAEINVAL, "WSAEINVAL", EINVAL},
|
||
{WSAEFAULT, "WSAEFAULT", EFAULT},
|
||
{0, "NOERROR", 0},
|
||
{0, NULL, 0}
|
||
};
|
||
|
||
static int
|
||
find_winsock_errno (int why)
|
||
{
|
||
for (int i = 0; errmap[i].s != NULL; ++i)
|
||
if (why == errmap[i].w)
|
||
return errmap[i].e;
|
||
|
||
return EPERM;
|
||
}
|
||
|
||
/* Cygwin internal */
|
||
void
|
||
__set_winsock_errno (const char *fn, int ln)
|
||
{
|
||
DWORD werr = WSAGetLastError ();
|
||
int err = find_winsock_errno (werr);
|
||
|
||
set_errno (err);
|
||
syscall_printf ("%s:%d - winsock error %d -> errno %d", fn, ln, werr, err);
|
||
}
|
||
|
||
/*
|
||
* Since the member `s' isn't used for debug output we can use it
|
||
* for the error text returned by herror and hstrerror.
|
||
*/
|
||
static NO_COPY struct tl host_errmap[] = {
|
||
{WSAHOST_NOT_FOUND, "Unknown host", HOST_NOT_FOUND},
|
||
{WSATRY_AGAIN, "Host name lookup failure", TRY_AGAIN},
|
||
{WSANO_RECOVERY, "Unknown server error", NO_RECOVERY},
|
||
{WSANO_DATA, "No address associated with name", NO_DATA},
|
||
{0, NULL, 0}
|
||
};
|
||
|
||
/* Cygwin internal */
|
||
static void
|
||
set_host_errno ()
|
||
{
|
||
int i;
|
||
|
||
int why = WSAGetLastError ();
|
||
|
||
for (i = 0; host_errmap[i].w != 0; ++i)
|
||
if (why == host_errmap[i].w)
|
||
break;
|
||
|
||
if (host_errmap[i].w != 0)
|
||
h_errno = host_errmap[i].e;
|
||
else
|
||
h_errno = NETDB_INTERNAL;
|
||
}
|
||
|
||
static void
|
||
free_char_list (char **clist)
|
||
{
|
||
if (clist)
|
||
{
|
||
for (char **cl = clist; *cl; ++cl)
|
||
free (*cl);
|
||
free (clist);
|
||
}
|
||
}
|
||
|
||
static char **
|
||
dup_char_list (char **src)
|
||
{
|
||
char **dst;
|
||
int cnt = 0;
|
||
|
||
for (char **cl = src; *cl; ++cl)
|
||
++cnt;
|
||
if (!(dst = (char **) calloc (cnt + 1, sizeof *dst)))
|
||
return NULL;
|
||
while (cnt-- > 0)
|
||
if (!(dst[cnt] = strdup (src[cnt])))
|
||
return NULL;
|
||
return dst;
|
||
}
|
||
|
||
#define free_addr_list(addr_list) free_char_list (addr_list)
|
||
|
||
static char **
|
||
dup_addr_list (char **src, unsigned int size)
|
||
{
|
||
char **dst;
|
||
int cnt = 0;
|
||
|
||
for (char **cl = src; *cl; ++cl)
|
||
++cnt;
|
||
if (!(dst = (char **) calloc (cnt + 1, sizeof *dst)))
|
||
return NULL;
|
||
while (cnt-- > 0)
|
||
{
|
||
if (!(dst[cnt] = (char *) malloc (size)))
|
||
return NULL;
|
||
memcpy (dst[cnt], src[cnt], size);
|
||
}
|
||
return dst;
|
||
}
|
||
|
||
static void
|
||
free_protoent_ptr (struct protoent *&p)
|
||
{
|
||
if (p)
|
||
{
|
||
debug_printf ("protoent: %s", p->p_name);
|
||
|
||
if (p->p_name)
|
||
free (p->p_name);
|
||
free_char_list (p->p_aliases);
|
||
p = NULL;
|
||
}
|
||
}
|
||
|
||
static struct protoent *
|
||
dup_protoent_ptr (struct protoent *src)
|
||
{
|
||
if (!src)
|
||
return NULL;
|
||
|
||
struct protoent *dst = (struct protoent *) calloc (1, sizeof *dst);
|
||
|
||
if (!dst)
|
||
return NULL;
|
||
|
||
debug_printf ("protoent: %s", src->p_name);
|
||
|
||
dst->p_proto = src->p_proto;
|
||
if (src->p_name && !(dst->p_name = strdup (src->p_name)))
|
||
goto out;
|
||
if (src->p_aliases && !(dst->p_aliases = dup_char_list (src->p_aliases)))
|
||
goto out;
|
||
|
||
debug_printf ("protoent: copied %s", dst->p_name);
|
||
|
||
return dst;
|
||
|
||
out:
|
||
free_protoent_ptr (dst);
|
||
return NULL;
|
||
}
|
||
|
||
#ifdef _MT_SAFE
|
||
#define protoent_buf _reent_winsup ()->_protoent_buf
|
||
#else
|
||
static struct protoent *protoent_buf = NULL;
|
||
#endif
|
||
|
||
/* exported as getprotobyname: standards? */
|
||
extern "C" struct protoent *
|
||
cygwin_getprotobyname (const char *p)
|
||
{
|
||
if (check_null_str_errno (p))
|
||
return NULL;
|
||
free_protoent_ptr (protoent_buf);
|
||
protoent_buf = dup_protoent_ptr (getprotobyname (p));
|
||
if (!protoent_buf)
|
||
set_winsock_errno ();
|
||
|
||
dump_protoent (protoent_buf);
|
||
return protoent_buf;
|
||
}
|
||
|
||
/* exported as getprotobynumber: standards? */
|
||
extern "C" struct protoent *
|
||
cygwin_getprotobynumber (int number)
|
||
{
|
||
free_protoent_ptr (protoent_buf);
|
||
protoent_buf = dup_protoent_ptr (getprotobynumber (number));
|
||
if (!protoent_buf)
|
||
set_winsock_errno ();
|
||
|
||
dump_protoent (protoent_buf);
|
||
return protoent_buf;
|
||
}
|
||
|
||
fhandler_socket *
|
||
fdsock (int &fd, const char *name, SOCKET soc)
|
||
{
|
||
if (!winsock2_active)
|
||
soc = set_socket_inheritance (soc);
|
||
else if (wincap.has_set_handle_information ())
|
||
{
|
||
/* NT systems apparently set sockets to inheritable by default */
|
||
SetHandleInformation ((HANDLE) soc, HANDLE_FLAG_INHERIT, 0);
|
||
debug_printf ("reset socket inheritance since winsock2_active %d",
|
||
winsock2_active);
|
||
}
|
||
else
|
||
debug_printf ("not setting socket inheritance since winsock2_active %d",
|
||
winsock2_active);
|
||
fhandler_socket *fh =
|
||
(fhandler_socket *) cygheap->fdtab.build_fhandler (fd, FH_SOCKET, name);
|
||
fh->set_io_handle ((HANDLE) soc);
|
||
fh->set_flags (O_RDWR | O_BINARY);
|
||
fh->set_r_no_interrupt (winsock2_active);
|
||
debug_printf ("fd %d, name '%s', soc %p", fd, name, soc);
|
||
return fh;
|
||
}
|
||
|
||
/* exported as socket: standards? */
|
||
extern "C" int
|
||
cygwin_socket (int af, int type, int protocol)
|
||
{
|
||
int res = -1;
|
||
SOCKET soc = 0;
|
||
fhandler_socket *fh = NULL;
|
||
|
||
cygheap_fdnew fd;
|
||
|
||
if (fd >= 0)
|
||
{
|
||
debug_printf ("socket (%d, %d, %d)", af, type, protocol);
|
||
|
||
soc = socket (AF_INET, type, af == AF_LOCAL ? 0 : protocol);
|
||
|
||
if (soc == INVALID_SOCKET)
|
||
{
|
||
set_winsock_errno ();
|
||
goto done;
|
||
}
|
||
|
||
const char *name;
|
||
|
||
if (af == AF_INET)
|
||
name = (type == SOCK_STREAM ? "/dev/tcp" : "/dev/udp");
|
||
else
|
||
name = (type == SOCK_STREAM ? "/dev/streamsocket" : "/dev/dgsocket");
|
||
|
||
fh = fdsock (fd, name, soc);
|
||
if (fh)
|
||
{
|
||
fh->set_addr_family (af);
|
||
fh->set_socket_type (type);
|
||
}
|
||
res = fd;
|
||
}
|
||
|
||
done:
|
||
syscall_printf ("%d = socket (%d, %d, %d)", res, af, type, protocol);
|
||
return res;
|
||
}
|
||
|
||
/* exported as sendto: standards? */
|
||
extern "C" int
|
||
cygwin_sendto (int fd, const void *buf, int len, int flags,
|
||
const struct sockaddr *to, int tolen)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if ((len && __check_invalid_read_ptr_errno (buf, (unsigned) len))
|
||
|| (to && __check_invalid_read_ptr_errno (to, tolen))
|
||
|| !fh)
|
||
res = -1;
|
||
else if ((res = len) != 0)
|
||
res = fh->sendto (buf, len, flags, to, tolen);
|
||
|
||
syscall_printf ("%d = sendto (%d, %p, %d, %x, %p, %d)",
|
||
res, fd, buf, len, flags, to, tolen);
|
||
|
||
return res;
|
||
}
|
||
|
||
/* exported as recvfrom: standards? */
|
||
extern "C" int
|
||
cygwin_recvfrom (int fd, void *buf, int len, int flags,
|
||
struct sockaddr *from, int *fromlen)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if ((len && __check_null_invalid_struct_errno (buf, (unsigned) len))
|
||
|| (from
|
||
&& (check_null_invalid_struct_errno (fromlen)
|
||
|| __check_null_invalid_struct_errno (from, (unsigned) *fromlen)))
|
||
|| !fh)
|
||
res = -1;
|
||
else if ((res = len) != 0)
|
||
res = fh->recvfrom (buf, len, flags, from, fromlen);
|
||
|
||
syscall_printf ("%d = recvfrom (%d, %p, %d, %x, %p, %p)",
|
||
res, fd, buf, len, flags, from, fromlen);
|
||
|
||
return res;
|
||
}
|
||
|
||
/* exported as setsockopt: standards? */
|
||
extern "C" int
|
||
cygwin_setsockopt (int fd, int level, int optname, const void *optval,
|
||
int optlen)
|
||
{
|
||
int res;
|
||
fhandler_socket *fh = get (fd);
|
||
const char *name = "error";
|
||
|
||
/* For the following debug_printf */
|
||
switch (optname)
|
||
{
|
||
case SO_DEBUG:
|
||
name = "SO_DEBUG";
|
||
break;
|
||
case SO_ACCEPTCONN:
|
||
name = "SO_ACCEPTCONN";
|
||
break;
|
||
case SO_REUSEADDR:
|
||
name = "SO_REUSEADDR";
|
||
break;
|
||
case SO_KEEPALIVE:
|
||
name = "SO_KEEPALIVE";
|
||
break;
|
||
case SO_DONTROUTE:
|
||
name = "SO_DONTROUTE";
|
||
break;
|
||
case SO_BROADCAST:
|
||
name = "SO_BROADCAST";
|
||
break;
|
||
case SO_USELOOPBACK:
|
||
name = "SO_USELOOPBACK";
|
||
break;
|
||
case SO_LINGER:
|
||
name = "SO_LINGER";
|
||
break;
|
||
case SO_OOBINLINE:
|
||
name = "SO_OOBINLINE";
|
||
break;
|
||
case SO_ERROR:
|
||
name = "SO_ERROR";
|
||
break;
|
||
}
|
||
|
||
if ((optval && __check_invalid_read_ptr_errno (optval, optlen)) || !fh)
|
||
res = -1;
|
||
else
|
||
{
|
||
res = setsockopt (fh->get_socket (), level, optname,
|
||
(const char *) optval, optlen);
|
||
|
||
if (optlen == 4)
|
||
syscall_printf ("setsockopt optval=%x", *(long *) optval);
|
||
|
||
if (res)
|
||
set_winsock_errno ();
|
||
}
|
||
|
||
syscall_printf ("%d = setsockopt (%d, %d, %x (%s), %p, %d)",
|
||
res, fd, level, optname, name, optval, optlen);
|
||
return res;
|
||
}
|
||
|
||
/* exported as getsockopt: standards? */
|
||
extern "C" int
|
||
cygwin_getsockopt (int fd, int level, int optname, void *optval, int *optlen)
|
||
{
|
||
int res;
|
||
fhandler_socket *fh = get (fd);
|
||
const char *name = "error";
|
||
|
||
/* For the following debug_printf */
|
||
switch (optname)
|
||
{
|
||
case SO_DEBUG:
|
||
name = "SO_DEBUG";
|
||
break;
|
||
case SO_ACCEPTCONN:
|
||
name = "SO_ACCEPTCONN";
|
||
break;
|
||
case SO_REUSEADDR:
|
||
name = "SO_REUSEADDR";
|
||
break;
|
||
case SO_KEEPALIVE:
|
||
name = "SO_KEEPALIVE";
|
||
break;
|
||
case SO_DONTROUTE:
|
||
name = "SO_DONTROUTE";
|
||
break;
|
||
case SO_BROADCAST:
|
||
name = "SO_BROADCAST";
|
||
break;
|
||
case SO_USELOOPBACK:
|
||
name = "SO_USELOOPBACK";
|
||
break;
|
||
case SO_LINGER:
|
||
name = "SO_LINGER";
|
||
break;
|
||
case SO_OOBINLINE:
|
||
name = "SO_OOBINLINE";
|
||
break;
|
||
case SO_ERROR:
|
||
name = "SO_ERROR";
|
||
break;
|
||
}
|
||
|
||
if ((optval
|
||
&& (check_null_invalid_struct_errno (optlen)
|
||
|| __check_null_invalid_struct_errno (optval, (unsigned) *optlen)))
|
||
|| !fh)
|
||
res = -1;
|
||
else
|
||
{
|
||
res = getsockopt (fh->get_socket (), level, optname, (char *) optval,
|
||
(int *) optlen);
|
||
|
||
if (optname == SO_ERROR)
|
||
{
|
||
int *e = (int *) optval;
|
||
|
||
*e = find_winsock_errno (*e);
|
||
}
|
||
|
||
if (res)
|
||
set_winsock_errno ();
|
||
}
|
||
|
||
syscall_printf ("%d = getsockopt (%d, %d, %x (%s), %p, %p)",
|
||
res, fd, level, optname, name, optval, optlen);
|
||
return res;
|
||
}
|
||
|
||
/* exported as connect: standards? */
|
||
extern "C" int
|
||
cygwin_connect (int fd, const struct sockaddr *name, int namelen)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (__check_invalid_read_ptr_errno (name, namelen) || !fh)
|
||
res = -1;
|
||
else
|
||
res = fh->connect (name, namelen);
|
||
|
||
syscall_printf ("%d = connect (%d, %p, %d)", res, fd, name, namelen);
|
||
|
||
return res;
|
||
}
|
||
|
||
static void
|
||
free_servent_ptr (struct servent *&p)
|
||
{
|
||
if (p)
|
||
{
|
||
debug_printf ("servent: %s", p->s_name);
|
||
|
||
if (p->s_name)
|
||
free (p->s_name);
|
||
if (p->s_proto)
|
||
free (p->s_proto);
|
||
free_char_list (p->s_aliases);
|
||
p = NULL;
|
||
}
|
||
}
|
||
|
||
#pragma pack(push,2)
|
||
struct pservent
|
||
{
|
||
char *s_name;
|
||
char **s_aliases;
|
||
short s_port;
|
||
char *s_proto;
|
||
};
|
||
|
||
#pragma pack(pop)
|
||
static struct servent *
|
||
dup_servent_ptr (struct servent *src)
|
||
{
|
||
if (!src)
|
||
return NULL;
|
||
|
||
struct servent *dst = (struct servent *) calloc (1, sizeof *dst);
|
||
|
||
if (!dst)
|
||
return NULL;
|
||
|
||
debug_printf ("servent: %s", src->s_name);
|
||
|
||
dst->s_port = src->s_port;
|
||
if (src->s_name && !(dst->s_name = strdup (src->s_name)))
|
||
goto out;
|
||
if (src->s_aliases && !(dst->s_aliases = dup_char_list (src->s_aliases)))
|
||
goto out;
|
||
char *s_proto;
|
||
|
||
if (IsBadReadPtr (src->s_proto, sizeof (src->s_proto))
|
||
&& !IsBadReadPtr (((pservent *) src)->s_proto, sizeof (src->s_proto)))
|
||
s_proto = ((pservent *) src)->s_proto;
|
||
else
|
||
s_proto = src->s_proto;
|
||
|
||
if (s_proto && !(dst->s_proto = strdup (s_proto)))
|
||
goto out;
|
||
|
||
debug_printf ("servent: copied %s", dst->s_name);
|
||
|
||
return dst;
|
||
|
||
out:
|
||
free_servent_ptr (dst);
|
||
return NULL;
|
||
}
|
||
|
||
#ifdef _MT_SAFE
|
||
#define servent_buf _reent_winsup ()->_servent_buf
|
||
#else
|
||
static struct servent *servent_buf = NULL;
|
||
#endif
|
||
|
||
/* exported as getservbyname: standards? */
|
||
extern "C" struct servent *
|
||
cygwin_getservbyname (const char *name, const char *proto)
|
||
{
|
||
if (check_null_str_errno (name)
|
||
|| (proto != NULL && check_null_str_errno (proto)))
|
||
return NULL;
|
||
|
||
free_servent_ptr (servent_buf);
|
||
servent_buf = dup_servent_ptr (getservbyname (name, proto));
|
||
if (!servent_buf)
|
||
set_winsock_errno ();
|
||
|
||
syscall_printf ("%x = getservbyname (%s, %s)", servent_buf, name, proto);
|
||
return servent_buf;
|
||
}
|
||
|
||
/* exported as getservbyport: standards? */
|
||
extern "C" struct servent *
|
||
cygwin_getservbyport (int port, const char *proto)
|
||
{
|
||
if (proto != NULL && check_null_str_errno (proto))
|
||
return NULL;
|
||
|
||
free_servent_ptr (servent_buf);
|
||
servent_buf = dup_servent_ptr (getservbyport (port, proto));
|
||
if (!servent_buf)
|
||
set_winsock_errno ();
|
||
|
||
syscall_printf ("%x = getservbyport (%d, %s)", servent_buf, port, proto);
|
||
return servent_buf;
|
||
}
|
||
|
||
extern "C" int
|
||
cygwin_gethostname (char *name, size_t len)
|
||
{
|
||
int PASCAL win32_gethostname (char *, int);
|
||
|
||
if (__check_null_invalid_struct_errno (name, len))
|
||
return -1;
|
||
|
||
if (wsock32_handle == NULL || win32_gethostname (name, len) == SOCKET_ERROR)
|
||
{
|
||
DWORD local_len = len;
|
||
|
||
if (!GetComputerNameA (name, &local_len))
|
||
{
|
||
set_winsock_errno ();
|
||
return -1;
|
||
}
|
||
}
|
||
debug_printf ("name %s", name);
|
||
h_errno = 0;
|
||
return 0;
|
||
}
|
||
|
||
static void
|
||
free_hostent_ptr (struct hostent *&p)
|
||
{
|
||
if (p)
|
||
{
|
||
debug_printf ("hostent: %s", p->h_name);
|
||
|
||
if (p->h_name)
|
||
free ((void *) p->h_name);
|
||
free_char_list (p->h_aliases);
|
||
free_addr_list (p->h_addr_list);
|
||
p = NULL;
|
||
}
|
||
}
|
||
|
||
static struct hostent *
|
||
dup_hostent_ptr (struct hostent *src)
|
||
{
|
||
if (!src)
|
||
return NULL;
|
||
|
||
struct hostent *dst = (struct hostent *) calloc (1, sizeof *dst);
|
||
|
||
if (!dst)
|
||
return NULL;
|
||
|
||
debug_printf ("hostent: %s", src->h_name);
|
||
|
||
dst->h_addrtype = src->h_addrtype;
|
||
dst->h_length = src->h_length;
|
||
if (src->h_name && !(dst->h_name = strdup (src->h_name)))
|
||
goto out;
|
||
if (src->h_aliases && !(dst->h_aliases = dup_char_list (src->h_aliases)))
|
||
goto out;
|
||
if (src->h_addr_list
|
||
&& !(dst->h_addr_list = dup_addr_list (src->h_addr_list, src->h_length)))
|
||
goto out;
|
||
|
||
debug_printf ("hostent: copied %s", dst->h_name);
|
||
|
||
return dst;
|
||
|
||
out:
|
||
free_hostent_ptr (dst);
|
||
return NULL;
|
||
}
|
||
|
||
#ifdef _MT_SAFE
|
||
#define hostent_buf _reent_winsup ()->_hostent_buf
|
||
#else
|
||
static struct hostent *hostent_buf = NULL;
|
||
#endif
|
||
|
||
/* exported as gethostbyname: standards? */
|
||
extern "C" struct hostent *
|
||
cygwin_gethostbyname (const char *name)
|
||
{
|
||
static unsigned char tmp_addr[4];
|
||
static struct hostent tmp;
|
||
static char *tmp_aliases[1];
|
||
static char *tmp_addr_list[2];
|
||
static int a, b, c, d;
|
||
|
||
if (check_null_str_errno (name))
|
||
return NULL;
|
||
|
||
if (sscanf (name, "%d.%d.%d.%d", &a, &b, &c, &d) == 4)
|
||
{
|
||
/* In case you don't have DNS, at least x.x.x.x still works */
|
||
memset (&tmp, 0, sizeof (tmp));
|
||
tmp_addr[0] = a;
|
||
tmp_addr[1] = b;
|
||
tmp_addr[2] = c;
|
||
tmp_addr[3] = d;
|
||
tmp_addr_list[0] = (char *) tmp_addr;
|
||
tmp.h_name = name;
|
||
tmp.h_aliases = tmp_aliases;
|
||
tmp.h_addrtype = 2;
|
||
tmp.h_length = 4;
|
||
tmp.h_addr_list = tmp_addr_list;
|
||
return &tmp;
|
||
}
|
||
|
||
free_hostent_ptr (hostent_buf);
|
||
hostent_buf = dup_hostent_ptr (gethostbyname (name));
|
||
if (!hostent_buf)
|
||
{
|
||
set_winsock_errno ();
|
||
set_host_errno ();
|
||
}
|
||
else
|
||
{
|
||
debug_printf ("h_name %s", hostent_buf->h_name);
|
||
h_errno = 0;
|
||
}
|
||
return hostent_buf;
|
||
}
|
||
|
||
/* exported as gethostbyaddr: standards? */
|
||
extern "C" struct hostent *
|
||
cygwin_gethostbyaddr (const char *addr, int len, int type)
|
||
{
|
||
if (__check_invalid_read_ptr_errno (addr, len))
|
||
return NULL;
|
||
|
||
free_hostent_ptr (hostent_buf);
|
||
hostent_buf = dup_hostent_ptr (gethostbyaddr (addr, len, type));
|
||
if (!hostent_buf)
|
||
{
|
||
set_winsock_errno ();
|
||
set_host_errno ();
|
||
}
|
||
else
|
||
{
|
||
debug_printf ("h_name %s", hostent_buf->h_name);
|
||
h_errno = 0;
|
||
}
|
||
return hostent_buf;
|
||
}
|
||
|
||
/* exported as accept: standards? */
|
||
extern "C" int
|
||
cygwin_accept (int fd, struct sockaddr *peer, int *len)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if ((peer && (check_null_invalid_struct_errno (len)
|
||
|| __check_null_invalid_struct_errno (peer, (unsigned) *len)))
|
||
|| !fh)
|
||
res = -1;
|
||
else
|
||
res = fh->accept (peer, len);
|
||
|
||
syscall_printf ("%d = accept (%d, %p, %p)", res, fd, peer, len);
|
||
return res;
|
||
}
|
||
|
||
/* exported as bind: standards? */
|
||
extern "C" int
|
||
cygwin_bind (int fd, const struct sockaddr *my_addr, int addrlen)
|
||
{
|
||
int res;
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (__check_invalid_read_ptr_errno (my_addr, addrlen) || !fh)
|
||
res = -1;
|
||
else
|
||
res = fh->bind (my_addr, addrlen);
|
||
|
||
syscall_printf ("%d = bind (%d, %p, %d)", res, fd, my_addr, addrlen);
|
||
return res;
|
||
}
|
||
|
||
/* exported as getsockname: standards? */
|
||
extern "C" int
|
||
cygwin_getsockname (int fd, struct sockaddr *addr, int *namelen)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (check_null_invalid_struct_errno (namelen)
|
||
|| __check_null_invalid_struct_errno (addr, (unsigned) *namelen)
|
||
|| !fh)
|
||
res = -1;
|
||
else
|
||
res = fh->getsockname (addr, namelen);
|
||
|
||
syscall_printf ("%d = getsockname (%d, %p, %p)", res, fd, addr, namelen);
|
||
return res;
|
||
}
|
||
|
||
/* exported as listen: standards? */
|
||
extern "C" int
|
||
cygwin_listen (int fd, int backlog)
|
||
{
|
||
int res;
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (!fh)
|
||
res = -1;
|
||
else
|
||
res = fh->listen (backlog);
|
||
|
||
syscall_printf ("%d = listen (%d, %d)", res, fd, backlog);
|
||
return res;
|
||
}
|
||
|
||
/* exported as shutdown: standards? */
|
||
extern "C" int
|
||
cygwin_shutdown (int fd, int how)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (!fh)
|
||
res = -1;
|
||
else
|
||
res = fh->shutdown (how);
|
||
|
||
syscall_printf ("%d = shutdown (%d, %d)", res, fd, how);
|
||
return res;
|
||
}
|
||
|
||
/* exported as hstrerror: BSD 4.3 */
|
||
extern "C" const char *
|
||
cygwin_hstrerror (int err)
|
||
{
|
||
int i;
|
||
|
||
for (i = 0; host_errmap[i].e != 0; ++i)
|
||
if (err == host_errmap[i].e)
|
||
break;
|
||
|
||
return host_errmap[i].s;
|
||
}
|
||
|
||
/* exported as herror: BSD 4.3 */
|
||
extern "C" void
|
||
cygwin_herror (const char *s)
|
||
{
|
||
if (s && check_null_str (s))
|
||
return;
|
||
if (cygheap->fdtab.not_open (2))
|
||
return;
|
||
|
||
if (s)
|
||
{
|
||
write (2, s, strlen (s));
|
||
write (2, ": ", 2);
|
||
}
|
||
|
||
const char *h_errstr = cygwin_hstrerror (h_errno);
|
||
|
||
if (!h_errstr)
|
||
switch (h_errno)
|
||
{
|
||
case NETDB_INTERNAL:
|
||
h_errstr = "Resolver internal error";
|
||
break;
|
||
case NETDB_SUCCESS:
|
||
h_errstr = "Resolver error 0 (no error)";
|
||
break;
|
||
default:
|
||
h_errstr = "Unknown resolver error";
|
||
break;
|
||
}
|
||
write (2, h_errstr, strlen (h_errstr));
|
||
write (2, "\n", 1);
|
||
}
|
||
|
||
/* exported as getpeername: standards? */
|
||
extern "C" int
|
||
cygwin_getpeername (int fd, struct sockaddr *name, int *len)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (check_null_invalid_struct_errno (len)
|
||
|| __check_null_invalid_struct_errno (name, (unsigned) *len)
|
||
|| !fh)
|
||
res = -1;
|
||
else
|
||
res = fh->getpeername (name, len);
|
||
|
||
syscall_printf ("%d = getpeername %d", res, (fh ? fh->get_socket () : -1));
|
||
return res;
|
||
}
|
||
|
||
/* exported as recv: standards? */
|
||
extern "C" int
|
||
cygwin_recv (int fd, void *buf, int len, int flags)
|
||
{
|
||
return cygwin_recvfrom (fd, buf, len, flags, NULL, NULL);
|
||
}
|
||
|
||
/* exported as send: standards? */
|
||
extern "C" int
|
||
cygwin_send (int fd, const void *buf, int len, int flags)
|
||
{
|
||
return cygwin_sendto (fd, buf, len, flags, NULL, 0);
|
||
}
|
||
|
||
/* getdomainname: standards? */
|
||
extern "C" int
|
||
getdomainname (char *domain, size_t len)
|
||
{
|
||
/*
|
||
* This works for Win95 only if the machine is configured to use MS-TCP.
|
||
* If a third-party TCP is being used this will fail.
|
||
* FIXME: On Win95, is there a way to portably check the TCP stack
|
||
* in use and include paths for the Domain name in each ?
|
||
* Punt for now and assume MS-TCP on Win95.
|
||
*/
|
||
if (__check_null_invalid_struct_errno (domain, len))
|
||
return -1;
|
||
|
||
reg_key r (HKEY_LOCAL_MACHINE, KEY_READ,
|
||
(!wincap.is_winnt ()) ? "System" : "SYSTEM",
|
||
"CurrentControlSet", "Services",
|
||
(!wincap.is_winnt ()) ? "VxD" : "Tcpip",
|
||
(!wincap.is_winnt ()) ? "MSTCP" : "Parameters", NULL);
|
||
|
||
/* FIXME: Are registry keys case sensitive? */
|
||
if (r.error () || r.get_string ("Domain", domain, len, "") != ERROR_SUCCESS)
|
||
{
|
||
__seterrno ();
|
||
return -1;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
/* Cygwin internal */
|
||
/* Fill out an ifconf struct. */
|
||
|
||
/*
|
||
* IFCONF 98/ME, NTSP4, W2K:
|
||
* Use IP Helper Library
|
||
*/
|
||
static void
|
||
get_2k_ifconf (struct ifconf *ifc, int what)
|
||
{
|
||
int cnt = 0;
|
||
int ethId = 0, pppId = 0, slpId = 0, tokId = 0;
|
||
|
||
/* Union maps buffer to correct struct */
|
||
struct ifreq *ifr = ifc->ifc_req;
|
||
|
||
DWORD ip_cnt, lip, lnp;
|
||
DWORD siz_ip_table = 0;
|
||
PMIB_IPADDRTABLE ipt;
|
||
PMIB_IFROW ifrow;
|
||
struct sockaddr_in *sa = NULL;
|
||
struct sockaddr *so = NULL;
|
||
|
||
typedef struct ifcount_t
|
||
{
|
||
DWORD ifIndex;
|
||
size_t count;
|
||
unsigned int enumerated; // for eth0:1
|
||
unsigned int classId; // for eth0, tok0 ...
|
||
|
||
};
|
||
ifcount_t *iflist, *ifEntry;
|
||
|
||
if (GetIpAddrTable (NULL, &siz_ip_table, TRUE) == ERROR_INSUFFICIENT_BUFFER
|
||
&& (ifrow = (PMIB_IFROW) alloca (sizeof (MIB_IFROW)))
|
||
&& (ipt = (PMIB_IPADDRTABLE) alloca (siz_ip_table))
|
||
&& !GetIpAddrTable (ipt, &siz_ip_table, TRUE))
|
||
{
|
||
iflist =
|
||
(ifcount_t *) alloca (sizeof (ifcount_t) * (ipt->dwNumEntries + 1));
|
||
memset (iflist, 0, sizeof (ifcount_t) * (ipt->dwNumEntries + 1));
|
||
for (ip_cnt = 0; ip_cnt < ipt->dwNumEntries; ++ip_cnt)
|
||
{
|
||
ifEntry = iflist;
|
||
/* search for matching entry (and stop at first free entry) */
|
||
while (ifEntry->count != 0)
|
||
{
|
||
if (ifEntry->ifIndex == ipt->table[ip_cnt].dwIndex)
|
||
break;
|
||
ifEntry++;
|
||
}
|
||
if (ifEntry->count == 0)
|
||
{
|
||
ifEntry->count = 1;
|
||
ifEntry->ifIndex = ipt->table[ip_cnt].dwIndex;
|
||
}
|
||
else
|
||
{
|
||
ifEntry->count++;
|
||
}
|
||
}
|
||
// reset the last element. This is just the stopper for the loop.
|
||
iflist[ipt->dwNumEntries].count = 0;
|
||
|
||
/* Iterate over all configured IP-addresses */
|
||
for (ip_cnt = 0; ip_cnt < ipt->dwNumEntries; ++ip_cnt)
|
||
{
|
||
memset (ifrow, 0, sizeof (MIB_IFROW));
|
||
ifrow->dwIndex = ipt->table[ip_cnt].dwIndex;
|
||
if (GetIfEntry (ifrow) != NO_ERROR)
|
||
continue;
|
||
|
||
ifcount_t *ifEntry = iflist;
|
||
|
||
/* search for matching entry (and stop at first free entry) */
|
||
while (ifEntry->count != 0)
|
||
{
|
||
if (ifEntry->ifIndex == ipt->table[ip_cnt].dwIndex)
|
||
break;
|
||
ifEntry++;
|
||
}
|
||
|
||
/* Setup the interface name */
|
||
switch (ifrow->dwType)
|
||
{
|
||
case MIB_IF_TYPE_TOKENRING:
|
||
if (ifEntry->enumerated == 0)
|
||
{
|
||
ifEntry->classId = tokId++;
|
||
__small_sprintf (ifr->ifr_name, "tok%u",
|
||
ifEntry->classId);
|
||
}
|
||
else
|
||
{
|
||
__small_sprintf (ifr->ifr_name, "tok%u:%u",
|
||
ifEntry->classId,
|
||
ifEntry->enumerated - 1);
|
||
}
|
||
ifEntry->enumerated++;
|
||
break;
|
||
case MIB_IF_TYPE_ETHERNET:
|
||
if (ifEntry->enumerated == 0)
|
||
{
|
||
ifEntry->classId = ethId++;
|
||
__small_sprintf (ifr->ifr_name, "eth%u",
|
||
ifEntry->classId);
|
||
}
|
||
else
|
||
{
|
||
__small_sprintf (ifr->ifr_name, "eth%u:%u",
|
||
ifEntry->classId,
|
||
ifEntry->enumerated - 1);
|
||
}
|
||
ifEntry->enumerated++;
|
||
break;
|
||
case MIB_IF_TYPE_PPP:
|
||
if (ifEntry->enumerated == 0)
|
||
{
|
||
ifEntry->classId = pppId++;
|
||
__small_sprintf (ifr->ifr_name, "ppp%u",
|
||
ifEntry->classId);
|
||
}
|
||
else
|
||
{
|
||
__small_sprintf (ifr->ifr_name, "ppp%u:%u",
|
||
ifEntry->classId,
|
||
ifEntry->enumerated - 1);
|
||
}
|
||
ifEntry->enumerated++;
|
||
break;
|
||
case MIB_IF_TYPE_SLIP:
|
||
if (ifEntry->enumerated == 0)
|
||
{
|
||
ifEntry->classId = slpId++;
|
||
__small_sprintf (ifr->ifr_name, "slp%u",
|
||
ifEntry->classId);
|
||
}
|
||
else
|
||
{
|
||
__small_sprintf (ifr->ifr_name, "slp%u:%u",
|
||
ifEntry->classId,
|
||
ifEntry->enumerated - 1);
|
||
}
|
||
ifEntry->enumerated++;
|
||
break;
|
||
case MIB_IF_TYPE_LOOPBACK:
|
||
strcpy (ifr->ifr_name, "lo");
|
||
break;
|
||
default:
|
||
continue;
|
||
}
|
||
/* setup sockaddr struct */
|
||
switch (what)
|
||
{
|
||
case SIOCGIFCONF:
|
||
case SIOCGIFADDR:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_addr;
|
||
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwAddr;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFBRDADDR:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
|
||
#if 0
|
||
/* Unfortunately, the field returns only crap. */
|
||
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwBCastAddr;
|
||
#else
|
||
lip = ipt->table[ip_cnt].dwAddr;
|
||
lnp = ipt->table[ip_cnt].dwMask;
|
||
sa->sin_addr.s_addr = lip & lnp | ~lnp;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
#endif
|
||
break;
|
||
case SIOCGIFNETMASK:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
|
||
sa->sin_addr.s_addr = ipt->table[ip_cnt].dwMask;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFHWADDR:
|
||
so = &ifr->ifr_hwaddr;
|
||
for (UINT i = 0; i < IFHWADDRLEN; ++i)
|
||
if (i >= ifrow->dwPhysAddrLen)
|
||
so->sa_data[i] = '\0';
|
||
else
|
||
so->sa_data[i] = ifrow->bPhysAddr[i];
|
||
so->sa_family = AF_INET;
|
||
break;
|
||
case SIOCGIFMETRIC:
|
||
ifr->ifr_metric = 1;
|
||
break;
|
||
case SIOCGIFMTU:
|
||
ifr->ifr_mtu = ifrow->dwMtu;
|
||
break;
|
||
}
|
||
++cnt;
|
||
if ((caddr_t)++ ifr >
|
||
ifc->ifc_buf + ifc->ifc_len - sizeof (struct ifreq))
|
||
goto done;
|
||
}
|
||
}
|
||
|
||
done:
|
||
/* Set the correct length */
|
||
ifc->ifc_len = cnt * sizeof (struct ifreq);
|
||
}
|
||
|
||
/*
|
||
* IFCONF Windows NT < SP4:
|
||
* Look at the Bind value in
|
||
* HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Linkage\
|
||
* This is a REG_MULTI_SZ with strings of the form:
|
||
* \Device\<Netcard>, where netcard is the name of the net device.
|
||
* Then look under:
|
||
* HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\<NetCard>\
|
||
* Parameters\Tcpip
|
||
* at the IPAddress, Subnetmask and DefaultGateway values for the
|
||
* required values.
|
||
*/
|
||
static void
|
||
get_nt_ifconf (struct ifconf *ifc, int what)
|
||
{
|
||
HKEY key;
|
||
unsigned long lip, lnp;
|
||
struct sockaddr_in *sa = NULL;
|
||
struct sockaddr *so = NULL;
|
||
DWORD size;
|
||
int cnt = 1;
|
||
char *binding = (char *) 0;
|
||
|
||
/* Union maps buffer to correct struct */
|
||
struct ifreq *ifr = ifc->ifc_req;
|
||
|
||
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE,
|
||
"SYSTEM\\"
|
||
"CurrentControlSet\\"
|
||
"Services\\"
|
||
"Tcpip\\" "Linkage",
|
||
0, KEY_READ, &key) == ERROR_SUCCESS)
|
||
{
|
||
if (RegQueryValueEx (key, "Bind",
|
||
NULL, NULL,
|
||
NULL, &size) == ERROR_SUCCESS)
|
||
{
|
||
binding = (char *) alloca (size);
|
||
if (RegQueryValueEx (key, "Bind",
|
||
NULL, NULL,
|
||
(unsigned char *) binding,
|
||
&size) != ERROR_SUCCESS)
|
||
{
|
||
binding = NULL;
|
||
}
|
||
}
|
||
RegCloseKey (key);
|
||
}
|
||
|
||
if (binding)
|
||
{
|
||
char *bp, eth[2] = "/";
|
||
char cardkey[256], ipaddress[256], netmask[256];
|
||
|
||
for (bp = binding; *bp; bp += strlen (bp) + 1)
|
||
{
|
||
bp += strlen ("\\Device\\");
|
||
strcpy (cardkey, "SYSTEM\\CurrentControlSet\\Services\\");
|
||
strcat (cardkey, bp);
|
||
strcat (cardkey, "\\Parameters\\Tcpip");
|
||
|
||
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, cardkey,
|
||
0, KEY_READ, &key) != ERROR_SUCCESS)
|
||
continue;
|
||
|
||
if (RegQueryValueEx (key, "IPAddress",
|
||
NULL, NULL,
|
||
(unsigned char *) ipaddress,
|
||
(size = 256, &size)) == ERROR_SUCCESS
|
||
&& RegQueryValueEx (key, "SubnetMask",
|
||
NULL, NULL,
|
||
(unsigned char *) netmask,
|
||
(size = 256, &size)) == ERROR_SUCCESS)
|
||
{
|
||
char *ip, *np;
|
||
char dhcpaddress[256], dhcpnetmask[256];
|
||
|
||
for (ip = ipaddress, np = netmask;
|
||
*ip && *np;
|
||
ip += strlen (ip) + 1, np += strlen (np) + 1)
|
||
{
|
||
if ((caddr_t)++ ifr > ifc->ifc_buf
|
||
+ ifc->ifc_len - sizeof (struct ifreq))
|
||
break;
|
||
|
||
if (!strncmp (bp, "NdisWan", 7))
|
||
{
|
||
strcpy (ifr->ifr_name, "ppp");
|
||
strcat (ifr->ifr_name, bp + 7);
|
||
}
|
||
else
|
||
{
|
||
++*eth;
|
||
strcpy (ifr->ifr_name, "eth");
|
||
strcat (ifr->ifr_name, eth);
|
||
}
|
||
memset (&ifr->ifr_addr, '\0', sizeof ifr->ifr_addr);
|
||
if (cygwin_inet_addr (ip) == 0L
|
||
&& RegQueryValueEx (key, "DhcpIPAddress",
|
||
NULL, NULL,
|
||
(unsigned char *) dhcpaddress,
|
||
(size = 256, &size))
|
||
== ERROR_SUCCESS
|
||
&& RegQueryValueEx (key, "DhcpSubnetMask",
|
||
NULL, NULL,
|
||
(unsigned char *) dhcpnetmask,
|
||
(size = 256, &size))
|
||
== ERROR_SUCCESS)
|
||
{
|
||
switch (what)
|
||
{
|
||
case SIOCGIFCONF:
|
||
case SIOCGIFADDR:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_addr;
|
||
sa->sin_addr.s_addr =
|
||
cygwin_inet_addr (dhcpaddress);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFBRDADDR:
|
||
lip = cygwin_inet_addr (dhcpaddress);
|
||
lnp = cygwin_inet_addr (dhcpnetmask);
|
||
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
|
||
sa->sin_addr.s_addr = lip & lnp | ~lnp;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFNETMASK:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
|
||
sa->sin_addr.s_addr =
|
||
cygwin_inet_addr (dhcpnetmask);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFHWADDR:
|
||
so = &ifr->ifr_hwaddr;
|
||
memset (so->sa_data, 0, IFHWADDRLEN);
|
||
so->sa_family = AF_INET;
|
||
break;
|
||
case SIOCGIFMETRIC:
|
||
ifr->ifr_metric = 1;
|
||
break;
|
||
case SIOCGIFMTU:
|
||
ifr->ifr_mtu = 1500;
|
||
break;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
switch (what)
|
||
{
|
||
case SIOCGIFCONF:
|
||
case SIOCGIFADDR:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_addr;
|
||
sa->sin_addr.s_addr = cygwin_inet_addr (ip);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFBRDADDR:
|
||
lip = cygwin_inet_addr (ip);
|
||
lnp = cygwin_inet_addr (np);
|
||
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
|
||
sa->sin_addr.s_addr = lip & lnp | ~lnp;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFNETMASK:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
|
||
sa->sin_addr.s_addr = cygwin_inet_addr (np);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFHWADDR:
|
||
so = &ifr->ifr_hwaddr;
|
||
memset (so->sa_data, 0, IFHWADDRLEN);
|
||
so->sa_family = AF_INET;
|
||
break;
|
||
case SIOCGIFMETRIC:
|
||
ifr->ifr_metric = 1;
|
||
break;
|
||
case SIOCGIFMTU:
|
||
ifr->ifr_mtu = 1500;
|
||
break;
|
||
}
|
||
}
|
||
++cnt;
|
||
}
|
||
}
|
||
RegCloseKey (key);
|
||
}
|
||
}
|
||
|
||
/* Set the correct length */
|
||
ifc->ifc_len = cnt * sizeof (struct ifreq);
|
||
}
|
||
|
||
/*
|
||
* IFCONF Windows 95:
|
||
* HKLM/Enum/Network/MSTCP/"*"
|
||
* -> Value "Driver" enth<74>lt Subkey relativ zu
|
||
* HKLM/System/CurrentControlSet/Class/
|
||
* -> In Subkey "Bindings" die Values aufz<66>hlen
|
||
* -> Enth<74>lt Subkeys der Form "VREDIR\*"
|
||
* Das * ist ein Subkey relativ zu
|
||
* HKLM/System/CurrentControlSet/Class/Net/
|
||
* HKLM/System/CurrentControlSet/Class/"Driver"
|
||
* -> Value "IPAddress"
|
||
* -> Value "IPMask"
|
||
* HKLM/System/CurrentControlSet/Class/Net/"*"(aus "VREDIR\*")
|
||
* -> Wenn Value "AdapterName" == "MS$PPP" -> ppp interface
|
||
* -> Value "DriverDesc" enth<74>lt den Namen
|
||
*
|
||
*/
|
||
static void
|
||
get_95_ifconf (struct ifconf *ifc, int what)
|
||
{
|
||
HKEY key;
|
||
unsigned long lip, lnp;
|
||
struct sockaddr_in *sa = NULL;
|
||
struct sockaddr *so = NULL;
|
||
FILETIME update;
|
||
LONG res;
|
||
DWORD size;
|
||
int cnt = 1;
|
||
char ifname[256];
|
||
char eth[2] = "/";
|
||
char ppp[2] = "/";
|
||
|
||
/* Union maps buffer to correct struct */
|
||
struct ifreq *ifr = ifc->ifc_req;
|
||
|
||
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, "Enum\\Network\\MSTCP",
|
||
0, KEY_READ, &key) != ERROR_SUCCESS)
|
||
{
|
||
/* Set the correct length */
|
||
ifc->ifc_len = cnt * sizeof (struct ifreq);
|
||
return;
|
||
}
|
||
|
||
for (int i = 0;
|
||
(res = RegEnumKeyEx (key, i, ifname,
|
||
(size = sizeof ifname, &size),
|
||
0, 0, 0, &update)) != ERROR_NO_MORE_ITEMS;
|
||
++i)
|
||
{
|
||
HKEY ifkey, subkey;
|
||
char driver[256], classname[256], netname[256];
|
||
char adapter[256], ip[256], np[256];
|
||
|
||
if (res != ERROR_SUCCESS
|
||
|| RegOpenKeyEx (key, ifname, 0, KEY_READ, &ifkey) != ERROR_SUCCESS)
|
||
continue;
|
||
|
||
if (RegQueryValueEx (ifkey, "Driver", 0,
|
||
NULL, (unsigned char *) driver,
|
||
(size = sizeof driver, &size)) != ERROR_SUCCESS)
|
||
{
|
||
RegCloseKey (ifkey);
|
||
continue;
|
||
}
|
||
|
||
strcpy (classname, "System\\CurrentControlSet\\Services\\Class\\");
|
||
strcat (classname, driver);
|
||
if ((res = RegOpenKeyEx (HKEY_LOCAL_MACHINE, classname,
|
||
0, KEY_READ, &subkey)) != ERROR_SUCCESS)
|
||
{
|
||
RegCloseKey (ifkey);
|
||
continue;
|
||
}
|
||
|
||
if (RegQueryValueEx (subkey, "IPAddress", 0,
|
||
NULL, (unsigned char *) ip,
|
||
(size = sizeof ip, &size)) == ERROR_SUCCESS
|
||
&& RegQueryValueEx (subkey, "IPMask", 0,
|
||
NULL, (unsigned char *) np,
|
||
(size = sizeof np, &size)) == ERROR_SUCCESS)
|
||
{
|
||
if ((caddr_t)++ ifr > ifc->ifc_buf
|
||
+ ifc->ifc_len - sizeof (struct ifreq))
|
||
goto out;
|
||
|
||
switch (what)
|
||
{
|
||
case SIOCGIFCONF:
|
||
case SIOCGIFADDR:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_addr;
|
||
sa->sin_addr.s_addr = cygwin_inet_addr (ip);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFBRDADDR:
|
||
lip = cygwin_inet_addr (ip);
|
||
lnp = cygwin_inet_addr (np);
|
||
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
|
||
sa->sin_addr.s_addr = lip & lnp | ~lnp;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFNETMASK:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
|
||
sa->sin_addr.s_addr = cygwin_inet_addr (np);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFHWADDR:
|
||
so = &ifr->ifr_hwaddr;
|
||
memset (so->sa_data, 0, IFHWADDRLEN);
|
||
so->sa_family = AF_INET;
|
||
break;
|
||
case SIOCGIFMETRIC:
|
||
ifr->ifr_metric = 1;
|
||
break;
|
||
case SIOCGIFMTU:
|
||
ifr->ifr_mtu = 1500;
|
||
break;
|
||
}
|
||
}
|
||
|
||
RegCloseKey (subkey);
|
||
|
||
strcpy (netname, "System\\CurrentControlSet\\Services\\Class\\Net\\");
|
||
strcat (netname, ifname);
|
||
|
||
if (RegOpenKeyEx (HKEY_LOCAL_MACHINE, netname,
|
||
0, KEY_READ, &subkey) != ERROR_SUCCESS)
|
||
{
|
||
RegCloseKey (ifkey);
|
||
--ifr;
|
||
continue;
|
||
}
|
||
|
||
if (RegQueryValueEx (subkey, "AdapterName", 0,
|
||
NULL, (unsigned char *) adapter,
|
||
(size = sizeof adapter, &size)) == ERROR_SUCCESS
|
||
&& strcasematch (adapter, "MS$PPP"))
|
||
{
|
||
++*ppp;
|
||
strcpy (ifr->ifr_name, "ppp");
|
||
strcat (ifr->ifr_name, ppp);
|
||
}
|
||
else
|
||
{
|
||
++*eth;
|
||
strcpy (ifr->ifr_name, "eth");
|
||
strcat (ifr->ifr_name, eth);
|
||
}
|
||
|
||
RegCloseKey (subkey);
|
||
RegCloseKey (ifkey);
|
||
|
||
++cnt;
|
||
}
|
||
|
||
out:
|
||
|
||
RegCloseKey (key);
|
||
|
||
/* Set the correct length */
|
||
ifc->ifc_len = cnt * sizeof (struct ifreq);
|
||
}
|
||
|
||
int
|
||
get_ifconf (struct ifconf *ifc, int what)
|
||
{
|
||
unsigned long lip, lnp;
|
||
struct sockaddr_in *sa;
|
||
|
||
if (check_null_invalid_struct_errno (ifc))
|
||
return -1;
|
||
|
||
/* Union maps buffer to correct struct */
|
||
struct ifreq *ifr = ifc->ifc_req;
|
||
|
||
/* Ensure we have space for two struct ifreqs, fail if not. */
|
||
if (ifc->ifc_len < (int) (2 * sizeof (struct ifreq)))
|
||
{
|
||
set_errno (EFAULT);
|
||
return -1;
|
||
}
|
||
|
||
/* Set up interface lo0 first */
|
||
strcpy (ifr->ifr_name, "lo");
|
||
memset (&ifr->ifr_addr, '\0', sizeof (ifr->ifr_addr));
|
||
switch (what)
|
||
{
|
||
case SIOCGIFCONF:
|
||
case SIOCGIFADDR:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_addr;
|
||
sa->sin_addr.s_addr = htonl (INADDR_LOOPBACK);
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFBRDADDR:
|
||
lip = htonl (INADDR_LOOPBACK);
|
||
lnp = cygwin_inet_addr ("255.0.0.0");
|
||
sa = (struct sockaddr_in *) &ifr->ifr_broadaddr;
|
||
sa->sin_addr.s_addr = lip & lnp | ~lnp;
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFNETMASK:
|
||
sa = (struct sockaddr_in *) &ifr->ifr_netmask;
|
||
sa->sin_addr.s_addr = cygwin_inet_addr ("255.0.0.0");
|
||
sa->sin_family = AF_INET;
|
||
sa->sin_port = 0;
|
||
break;
|
||
case SIOCGIFHWADDR:
|
||
ifr->ifr_hwaddr.sa_family = AF_INET;
|
||
memset (ifr->ifr_hwaddr.sa_data, 0, IFHWADDRLEN);
|
||
break;
|
||
case SIOCGIFMETRIC:
|
||
ifr->ifr_metric = 1;
|
||
break;
|
||
case SIOCGIFMTU:
|
||
/* This funny value is returned by `ifconfig lo' on Linux 2.2 kernel. */
|
||
ifr->ifr_mtu = 3924;
|
||
break;
|
||
default:
|
||
set_errno (EINVAL);
|
||
return -1;
|
||
}
|
||
|
||
OSVERSIONINFO os_version_info;
|
||
|
||
memset (&os_version_info, 0, sizeof os_version_info);
|
||
os_version_info.dwOSVersionInfoSize = sizeof (OSVERSIONINFO);
|
||
GetVersionEx (&os_version_info);
|
||
if (wincap.has_ip_helper_lib ())
|
||
get_2k_ifconf (ifc, what);
|
||
else if (wincap.is_winnt ())
|
||
get_nt_ifconf (ifc, what);
|
||
else
|
||
get_95_ifconf (ifc, what);
|
||
return 0;
|
||
}
|
||
|
||
/* exported as rcmd: standards? */
|
||
extern "C" int
|
||
cygwin_rcmd (char **ahost, unsigned short inport, char *locuser,
|
||
char *remuser, char *cmd, int *fd2p)
|
||
{
|
||
int res = -1;
|
||
SOCKET fd2s;
|
||
sigframe thisframe (mainthread);
|
||
|
||
if (check_null_invalid_struct_errno (ahost) ||
|
||
check_null_empty_str_errno (*ahost) ||
|
||
(locuser && check_null_empty_str_errno (locuser)) ||
|
||
(remuser && check_null_str_errno (remuser)))
|
||
return (int) INVALID_SOCKET;
|
||
|
||
cygheap_fdnew res_fd;
|
||
|
||
if (res_fd < 0)
|
||
goto done;
|
||
|
||
if (fd2p)
|
||
{
|
||
cygheap_fdnew newfd (res_fd, false);
|
||
|
||
if (*fd2p < 0)
|
||
goto done;
|
||
*fd2p = newfd;
|
||
}
|
||
|
||
res = rcmd (ahost, inport, locuser, remuser, cmd, fd2p ? &fd2s : NULL);
|
||
if (res == (int) INVALID_SOCKET)
|
||
goto done;
|
||
else
|
||
{
|
||
fdsock (res_fd, "/dev/tcp", res);
|
||
res = res_fd;
|
||
}
|
||
|
||
if (fd2p)
|
||
fdsock (*fd2p, "/dev/tcp", fd2s);
|
||
|
||
done:
|
||
syscall_printf ("%d = rcmd (...)", res);
|
||
return res;
|
||
}
|
||
|
||
/* exported as rresvport: standards? */
|
||
extern "C" int
|
||
cygwin_rresvport (int *port)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
if (check_null_invalid_struct_errno (port))
|
||
return -1;
|
||
|
||
cygheap_fdnew res_fd;
|
||
|
||
if (res_fd < 0)
|
||
res = -1;
|
||
else
|
||
{
|
||
res = rresvport (port);
|
||
|
||
if (res != (int) INVALID_SOCKET)
|
||
{
|
||
fdsock (res_fd, "/dev/tcp", res);
|
||
res = res_fd;
|
||
}
|
||
}
|
||
|
||
syscall_printf ("%d = rresvport (%d)", res, port ? *port : 0);
|
||
return res;
|
||
}
|
||
|
||
/* exported as rexec: standards? */
|
||
extern "C" int
|
||
cygwin_rexec (char **ahost, unsigned short inport, char *locuser,
|
||
char *password, char *cmd, int *fd2p)
|
||
{
|
||
int res = -1;
|
||
SOCKET fd2s;
|
||
sigframe thisframe (mainthread);
|
||
|
||
if (check_null_invalid_struct_errno (ahost) ||
|
||
check_null_empty_str_errno (*ahost) ||
|
||
(locuser && check_null_empty_str_errno (locuser)) ||
|
||
(password && check_null_str_errno (password)))
|
||
return (int) INVALID_SOCKET;
|
||
|
||
cygheap_fdnew res_fd;
|
||
|
||
if (res_fd < 0)
|
||
goto done;
|
||
if (fd2p)
|
||
{
|
||
cygheap_fdnew newfd (res_fd);
|
||
|
||
if (newfd < 0)
|
||
goto done;
|
||
*fd2p = newfd;
|
||
}
|
||
res = rexec (ahost, inport, locuser, password, cmd, fd2p ? &fd2s : NULL);
|
||
if (res == (int) INVALID_SOCKET)
|
||
goto done;
|
||
else
|
||
{
|
||
fdsock (res_fd, "/dev/tcp", res);
|
||
res = res_fd;
|
||
}
|
||
if (fd2p)
|
||
fdsock (*fd2p, "/dev/tcp", fd2s);
|
||
|
||
done:
|
||
syscall_printf ("%d = rexec (...)", res);
|
||
return res;
|
||
}
|
||
|
||
/* socketpair: standards? */
|
||
/* Win32 supports AF_INET only, so ignore domain and protocol arguments */
|
||
extern "C" int
|
||
socketpair (int family, int type, int protocol, int *sb)
|
||
{
|
||
int res = -1;
|
||
SOCKET insock, outsock, newsock;
|
||
struct sockaddr_in sock_in, sock_out;
|
||
int len;
|
||
cygheap_fdnew sb0;
|
||
fhandler_socket *fh;
|
||
|
||
if (__check_null_invalid_struct_errno (sb, 2 * sizeof (int)))
|
||
return -1;
|
||
|
||
if (family != AF_LOCAL && family != AF_INET)
|
||
{
|
||
set_errno (EAFNOSUPPORT);
|
||
goto done;
|
||
}
|
||
if (type != SOCK_STREAM && type != SOCK_DGRAM)
|
||
{
|
||
set_errno (EPROTOTYPE);
|
||
goto done;
|
||
}
|
||
if ((family == AF_LOCAL && protocol != PF_UNSPEC && protocol != PF_LOCAL)
|
||
|| (family == AF_INET && protocol != PF_UNSPEC && protocol != PF_INET))
|
||
{
|
||
set_errno (EPROTONOSUPPORT);
|
||
goto done;
|
||
}
|
||
|
||
if (sb0 < 0)
|
||
goto done;
|
||
else
|
||
{
|
||
sb[0] = sb0;
|
||
cygheap_fdnew sb1 (sb0, false);
|
||
|
||
if (sb1 < 0)
|
||
goto done;
|
||
|
||
sb[1] = sb1;
|
||
}
|
||
|
||
/* create the first socket */
|
||
newsock = socket (AF_INET, type, 0);
|
||
if (newsock == INVALID_SOCKET)
|
||
{
|
||
debug_printf ("first socket call failed");
|
||
set_winsock_errno ();
|
||
goto done;
|
||
}
|
||
|
||
/* bind the socket to any unused port */
|
||
sock_in.sin_family = AF_INET;
|
||
sock_in.sin_port = 0;
|
||
sock_in.sin_addr.s_addr = INADDR_ANY;
|
||
if (bind (newsock, (struct sockaddr *) &sock_in, sizeof (sock_in)) < 0)
|
||
{
|
||
debug_printf ("bind failed");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
goto done;
|
||
}
|
||
len = sizeof (sock_in);
|
||
if (getsockname (newsock, (struct sockaddr *) &sock_in, &len) < 0)
|
||
{
|
||
debug_printf ("getsockname error");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
goto done;
|
||
}
|
||
|
||
/* For stream sockets, create a listener */
|
||
if (type == SOCK_STREAM)
|
||
listen (newsock, 2);
|
||
|
||
/* create a connecting socket */
|
||
outsock = socket (AF_INET, type, 0);
|
||
if (outsock == INVALID_SOCKET)
|
||
{
|
||
debug_printf ("second socket call failed");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
goto done;
|
||
}
|
||
|
||
/* For datagram sockets, bind the 2nd socket to an unused address, too */
|
||
if (type == SOCK_DGRAM)
|
||
{
|
||
sock_out.sin_family = AF_INET;
|
||
sock_out.sin_port = 0;
|
||
sock_out.sin_addr.s_addr = INADDR_ANY;
|
||
if (bind (outsock, (struct sockaddr *) &sock_out, sizeof (sock_out)) < 0)
|
||
{
|
||
debug_printf ("bind failed");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
closesocket (outsock);
|
||
goto done;
|
||
}
|
||
len = sizeof (sock_out);
|
||
if (getsockname (outsock, (struct sockaddr *) &sock_out, &len) < 0)
|
||
{
|
||
debug_printf ("getsockname error");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
closesocket (outsock);
|
||
goto done;
|
||
}
|
||
}
|
||
|
||
/* Force IP address to loopback */
|
||
sock_in.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
|
||
if (type == SOCK_DGRAM)
|
||
sock_out.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
|
||
|
||
/* Do a connect */
|
||
if (connect (outsock, (struct sockaddr *) &sock_in, sizeof (sock_in)) < 0)
|
||
{
|
||
debug_printf ("connect error");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
closesocket (outsock);
|
||
goto done;
|
||
}
|
||
|
||
if (type == SOCK_STREAM)
|
||
{
|
||
/* For stream sockets, accept the connection and close the listener */
|
||
len = sizeof (sock_in);
|
||
insock = accept (newsock, (struct sockaddr *) &sock_in, &len);
|
||
if (insock == INVALID_SOCKET)
|
||
{
|
||
debug_printf ("accept error");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
closesocket (outsock);
|
||
goto done;
|
||
}
|
||
closesocket (newsock);
|
||
}
|
||
else
|
||
{
|
||
/* For datagram sockets, connect the 2nd socket */
|
||
if (connect (newsock, (struct sockaddr *) &sock_out,
|
||
sizeof (sock_out)) < 0)
|
||
{
|
||
debug_printf ("connect error");
|
||
set_winsock_errno ();
|
||
closesocket (newsock);
|
||
closesocket (outsock);
|
||
goto done;
|
||
}
|
||
insock = newsock;
|
||
}
|
||
|
||
res = 0;
|
||
|
||
if (family == AF_LOCAL)
|
||
{
|
||
|
||
fh = fdsock (sb[0],
|
||
type == SOCK_STREAM ? "/dev/streamsocket" : "/dev/dgsocket",
|
||
insock);
|
||
fh->set_sun_path ("");
|
||
fh->set_addr_family (AF_LOCAL);
|
||
fh->set_socket_type (type);
|
||
fh = fdsock (sb[1],
|
||
type == SOCK_STREAM ? "/dev/streamsocket" : "/dev/dgsocket",
|
||
outsock);
|
||
fh->set_sun_path ("");
|
||
fh->set_addr_family (AF_LOCAL);
|
||
fh->set_socket_type (type);
|
||
}
|
||
else
|
||
{
|
||
fh = fdsock (sb[0], type == SOCK_STREAM ? "/dev/tcp" : "/dev/udp",
|
||
insock);
|
||
fh->set_addr_family (AF_INET);
|
||
fh->set_socket_type (type);
|
||
fh = fdsock (sb[1], type == SOCK_STREAM ? "/dev/tcp" : "/dev/udp",
|
||
outsock);
|
||
fh->set_addr_family (AF_INET);
|
||
fh->set_socket_type (type);
|
||
}
|
||
|
||
done:
|
||
syscall_printf ("%d = socketpair (...)", res);
|
||
return res;
|
||
}
|
||
|
||
/* sethostent: standards? */
|
||
extern "C" void
|
||
sethostent (int)
|
||
{
|
||
}
|
||
|
||
/* endhostent: standards? */
|
||
extern "C" void
|
||
endhostent (void)
|
||
{
|
||
}
|
||
|
||
/* exported as recvmsg: standards? */
|
||
extern "C" int
|
||
cygwin_recvmsg (int fd, struct msghdr *msg, int flags)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (check_null_invalid_struct_errno (msg)
|
||
|| (msg->msg_name
|
||
&& __check_null_invalid_struct_errno (msg->msg_name,
|
||
(unsigned) msg->msg_namelen))
|
||
|| !fh)
|
||
res = -1;
|
||
else
|
||
{
|
||
res = check_iovec_for_read (msg->msg_iov, msg->msg_iovlen);
|
||
if (res > 0)
|
||
res = fh->recvmsg (msg, flags, res); // res == iovec tot
|
||
}
|
||
|
||
syscall_printf ("%d = recvmsg (%d, %p, %x)", res, fd, msg, flags);
|
||
return res;
|
||
}
|
||
|
||
/* exported as sendmsg: standards? */
|
||
extern "C" int
|
||
cygwin_sendmsg (int fd, const struct msghdr *msg, int flags)
|
||
{
|
||
int res;
|
||
sigframe thisframe (mainthread);
|
||
|
||
fhandler_socket *fh = get (fd);
|
||
|
||
if (__check_invalid_read_ptr_errno (msg, sizeof msg)
|
||
|| (msg->msg_name
|
||
&& __check_invalid_read_ptr_errno (msg->msg_name,
|
||
(unsigned) msg->msg_namelen))
|
||
|| !fh)
|
||
res = -1;
|
||
else
|
||
{
|
||
res = check_iovec_for_write (msg->msg_iov, msg->msg_iovlen);
|
||
if (res > 0)
|
||
res = fh->sendmsg (msg, flags, res); // res == iovec tot
|
||
}
|
||
|
||
syscall_printf ("%d = sendmsg (%d, %p, %x)", res, fd, msg, flags);
|
||
return res;
|
||
}
|