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authorcvs2svn <>2010-12-18 01:10:07 +0300
committercvs2svn <>2010-12-18 01:10:07 +0300
commit27ab486f12c627f6780cb59815f0a36fe69d1497 (patch)
tree1d25fbce04b6a00d7b7d8f8fd64fa4209b57f42f /winsup/cygwin/fhandler_socket.cc
parentafeb58b9ae7d03780fd695beeb64203994252c71 (diff)
This commit was manufactured by cvs2svn to create tag 'newlib-1_19_0'.newlib-1_19_0
Sprout from master 2010-12-17 22:10:05 UTC Jeff Johnston <jjohnstn@redhat.com> '' Cherrypick from cygnus 1999-05-03 07:29:06 UTC Richard Henderson <rth@redhat.com> '19990502 sourceware import': README config/mt-d30v config/mt-netware config/mt-ospace etc/add-log.el etc/add-log.vi etc/configbuild.ein etc/configbuild.fig etc/configbuild.jin etc/configbuild.tin etc/configdev.ein etc/configdev.fig etc/configdev.jin etc/configdev.tin makefile.vms Delete: djunpack.bat include/COPYING include/COPYING3 include/ChangeLog include/ChangeLog-9103 include/MAINTAINERS include/alloca-conf.h include/ansidecl.h include/aout/ChangeLog include/aout/adobe.h include/aout/aout64.h include/aout/ar.h include/aout/dynix3.h include/aout/encap.h include/aout/host.h include/aout/hp.h include/aout/hp300hpux.h include/aout/hppa.h include/aout/ranlib.h include/aout/reloc.h include/aout/stab.def include/aout/stab_gnu.h include/aout/sun4.h include/bfdlink.h include/binary-io.h include/bout.h include/cgen/ChangeLog include/cgen/basic-modes.h include/cgen/basic-ops.h include/cgen/bitset.h include/coff/ChangeLog include/coff/ChangeLog-9103 include/coff/alpha.h include/coff/apollo.h include/coff/arm.h include/coff/aux-coff.h include/coff/ecoff.h include/coff/external.h include/coff/go32exe.h include/coff/h8300.h include/coff/h8500.h include/coff/i386.h include/coff/i860.h include/coff/i960.h include/coff/ia64.h include/coff/internal.h include/coff/m68k.h include/coff/m88k.h include/coff/mcore.h include/coff/mips.h include/coff/mipspe.h include/coff/or32.h include/coff/pe.h include/coff/powerpc.h include/coff/rs6000.h include/coff/rs6k64.h include/coff/sh.h include/coff/sparc.h include/coff/sym.h include/coff/symconst.h include/coff/ti.h include/coff/tic30.h include/coff/tic4x.h include/coff/tic54x.h include/coff/tic80.h include/coff/w65.h include/coff/we32k.h include/coff/x86_64.h include/coff/xcoff.h include/coff/z80.h include/coff/z8k.h include/demangle.h include/dis-asm.h include/dwarf2.h 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winsup/w32api/lib/ddk/hal.def winsup/w32api/lib/ddk/hid.def winsup/w32api/lib/ddk/hidparse.def winsup/w32api/lib/ddk/mcd.def winsup/w32api/lib/ddk/ndis.def winsup/w32api/lib/ddk/newdev.def winsup/w32api/lib/ddk/ntoskrnl.def winsup/w32api/lib/ddk/scsiport.def winsup/w32api/lib/ddk/tdi.def winsup/w32api/lib/ddk/usbcamd.def winsup/w32api/lib/ddk/usbcamd2.def winsup/w32api/lib/ddk/videoprt.def winsup/w32api/lib/ddk/win32k.def winsup/w32api/lib/devguid.c winsup/w32api/lib/dhcpcsvc.def winsup/w32api/lib/directx/Makefile.in winsup/w32api/lib/directx/d3d8.def winsup/w32api/lib/directx/d3d9.def winsup/w32api/lib/directx/d3dim.def winsup/w32api/lib/directx/d3drm.def winsup/w32api/lib/directx/d3dx8d.def winsup/w32api/lib/directx/d3dx9d.def winsup/w32api/lib/directx/d3dxof.def winsup/w32api/lib/directx/ddraw.def winsup/w32api/lib/directx/dinput.def winsup/w32api/lib/directx/dinput8.def winsup/w32api/lib/directx/dinput_joy.c winsup/w32api/lib/directx/dinput_joy2.c winsup/w32api/lib/directx/dinput_kbd.c winsup/w32api/lib/directx/dinput_mouse.c winsup/w32api/lib/directx/dinput_mouse2.c winsup/w32api/lib/directx/dinput_private.h winsup/w32api/lib/directx/dmoguids.c winsup/w32api/lib/directx/dplayx.def winsup/w32api/lib/directx/dpnaddr.def winsup/w32api/lib/directx/dpnet.def winsup/w32api/lib/directx/dpnlobby.def winsup/w32api/lib/directx/dpvoice.def winsup/w32api/lib/directx/dsetup.def winsup/w32api/lib/directx/dsound.def winsup/w32api/lib/directx/dxerr.c winsup/w32api/lib/directx/dxerr8.c winsup/w32api/lib/directx/dxerr8w.c winsup/w32api/lib/directx/dxerr9.c winsup/w32api/lib/directx/dxerr9w.c winsup/w32api/lib/directx/dxguid.c winsup/w32api/lib/directx/ksproxy.def winsup/w32api/lib/directx/ksuser.c winsup/w32api/lib/directx/ksuser.def winsup/w32api/lib/directx/msdmo.def winsup/w32api/lib/directx/strmiids.c winsup/w32api/lib/directx/test.c winsup/w32api/lib/dlcapi.def winsup/w32api/lib/dnsapi.def winsup/w32api/lib/docobj-uuid.c winsup/w32api/lib/exdisp-uuid.c winsup/w32api/lib/extras-uuid.c winsup/w32api/lib/faultrep.def winsup/w32api/lib/gdi32.def winsup/w32api/lib/gdiplus.c winsup/w32api/lib/gdiplus.def winsup/w32api/lib/glaux.def winsup/w32api/lib/glu32.def winsup/w32api/lib/hlguids-uuid.c winsup/w32api/lib/hlink-uuid.c winsup/w32api/lib/icmui.def winsup/w32api/lib/igmpagnt.def winsup/w32api/lib/imagehlp.def winsup/w32api/lib/imm32.def winsup/w32api/lib/iphlpapi.def winsup/w32api/lib/kernel32.def winsup/w32api/lib/largeint.c winsup/w32api/lib/lz32.def winsup/w32api/lib/mapi32.def winsup/w32api/lib/mfcuia32.def winsup/w32api/lib/mgmtapi.def winsup/w32api/lib/mlang-uuid.c winsup/w32api/lib/mpr.def winsup/w32api/lib/mprapi.def winsup/w32api/lib/mqrt.def winsup/w32api/lib/msacm32.def winsup/w32api/lib/mscms.def winsup/w32api/lib/mshtml-uuid.c winsup/w32api/lib/msimg32.def winsup/w32api/lib/msvcp60.def winsup/w32api/lib/msvfw32.def winsup/w32api/lib/mswsock.def winsup/w32api/lib/msxml-uuid.c winsup/w32api/lib/nddeapi.def winsup/w32api/lib/netapi32.def winsup/w32api/lib/ntdll.def winsup/w32api/lib/oaidl-uuid.c winsup/w32api/lib/objidl-uuid.c winsup/w32api/lib/objsafe-uuid.c winsup/w32api/lib/ocidl-uuid.c winsup/w32api/lib/odbc32.def winsup/w32api/lib/odbccp32.def winsup/w32api/lib/ole32.def winsup/w32api/lib/oleacc-uuid.c winsup/w32api/lib/oleacc.def winsup/w32api/lib/oleaut32.def winsup/w32api/lib/olecli32.def winsup/w32api/lib/olectlid-uuid.c winsup/w32api/lib/oledlg.def winsup/w32api/lib/oleidl-uuid.c winsup/w32api/lib/olepro32.def winsup/w32api/lib/olesvr32.def winsup/w32api/lib/opengl32.def winsup/w32api/lib/penwin32.def winsup/w32api/lib/pkpd32.def winsup/w32api/lib/power-uuid.c winsup/w32api/lib/powrprof.def winsup/w32api/lib/psapi.def winsup/w32api/lib/quartz.def winsup/w32api/lib/rapi.def winsup/w32api/lib/rasapi32.def winsup/w32api/lib/rasdlg.def winsup/w32api/lib/res.rc winsup/w32api/lib/rpcdce4.def winsup/w32api/lib/rpcns4.def winsup/w32api/lib/rpcrt4.def winsup/w32api/lib/rtm.def winsup/w32api/lib/rtutils.def winsup/w32api/lib/scrnsave.c winsup/w32api/lib/secur32.def winsup/w32api/lib/servprov-uuid.c winsup/w32api/lib/setupapi.def winsup/w32api/lib/shell32.c winsup/w32api/lib/shell32.def winsup/w32api/lib/shfolder.def winsup/w32api/lib/shlwapi.def winsup/w32api/lib/snmpapi.def winsup/w32api/lib/svrapi.def winsup/w32api/lib/tapi32.def winsup/w32api/lib/test.c winsup/w32api/lib/thunk32.def winsup/w32api/lib/unknwn-uuid.c winsup/w32api/lib/url.def winsup/w32api/lib/urlmon-uuid.c winsup/w32api/lib/user32.def winsup/w32api/lib/userenv.def winsup/w32api/lib/usp10.def winsup/w32api/lib/uxtheme.def winsup/w32api/lib/vdmdbg.def winsup/w32api/lib/version.def winsup/w32api/lib/vfw32.mri winsup/w32api/lib/win32spl.def winsup/w32api/lib/wininet.def winsup/w32api/lib/winmm.def winsup/w32api/lib/winspool.def winsup/w32api/lib/winstrm.def winsup/w32api/lib/wldap32.def winsup/w32api/lib/wow32.def winsup/w32api/lib/ws2_32.c winsup/w32api/lib/ws2_32.def winsup/w32api/lib/wsnmp32.def winsup/w32api/lib/wsock32.def winsup/w32api/lib/wst.def winsup/w32api/lib/wtsapi32.def
Diffstat (limited to 'winsup/cygwin/fhandler_socket.cc')
-rw-r--r--winsup/cygwin/fhandler_socket.cc2111
1 files changed, 0 insertions, 2111 deletions
diff --git a/winsup/cygwin/fhandler_socket.cc b/winsup/cygwin/fhandler_socket.cc
deleted file mode 100644
index 85651c500..000000000
--- a/winsup/cygwin/fhandler_socket.cc
+++ /dev/null
@@ -1,2111 +0,0 @@
-/* fhandler_socket.cc. See fhandler.h for a description of the fhandler classes.
-
- Copyright 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
- 2009, 2010 Red Hat, Inc.
-
- This file is part of Cygwin.
-
- This software is a copyrighted work licensed under the terms of the
- Cygwin license. Please consult the file "CYGWIN_LICENSE" for
- details. */
-
-/* #define DEBUG_NEST_ON 1 */
-
-#define __INSIDE_CYGWIN_NET__
-
-#include "winsup.h"
-#include <sys/un.h>
-#include <asm/byteorder.h>
-
-#include <stdlib.h>
-#define USE_SYS_TYPES_FD_SET
-#include <winsock2.h>
-#include <mswsock.h>
-#include <iphlpapi.h>
-#include "cygerrno.h"
-#include "security.h"
-#include "cygwin/version.h"
-#include "perprocess.h"
-#include "path.h"
-#include "fhandler.h"
-#include "dtable.h"
-#include "cygheap.h"
-#include "shared_info.h"
-#include "sigproc.h"
-#include "wininfo.h"
-#include <unistd.h>
-#include <sys/acl.h>
-#include "cygtls.h"
-#include "cygwin/in6.h"
-#include "ntdll.h"
-#include "miscfuncs.h"
-
-#define ASYNC_MASK (FD_READ|FD_WRITE|FD_OOB|FD_ACCEPT|FD_CONNECT)
-#define EVENT_MASK (FD_READ|FD_WRITE|FD_OOB|FD_ACCEPT|FD_CONNECT|FD_CLOSE)
-
-extern bool fdsock (cygheap_fdmanip& fd, const device *, SOCKET soc);
-extern "C" {
-int sscanf (const char *, const char *, ...);
-} /* End of "C" section */
-
-fhandler_dev_random* entropy_source;
-
-static inline mode_t
-adjust_socket_file_mode (mode_t mode)
-{
- /* Kludge: Don't allow to remove read bit on socket files for
- user/group/other, if the accompanying write bit is set. It would
- be nice to have exact permissions on a socket file, but it's
- necessary that somebody able to access the socket can always read
- the contents of the socket file to avoid spurious "permission
- denied" messages. */
- return mode | ((mode & (S_IWUSR | S_IWGRP | S_IWOTH)) << 1);
-}
-
-/* cygwin internal: map sockaddr into internet domain address */
-static int
-get_inet_addr (const struct sockaddr *in, int inlen,
- struct sockaddr_storage *out, int *outlen,
- int *type = NULL, int *secret = NULL)
-{
- int secret_buf [4];
- int* secret_ptr = (secret ? : secret_buf);
-
- if (in->sa_family == AF_INET || in->sa_family == AF_INET6)
- {
- memcpy (out, in, inlen);
- *outlen = inlen;
- return 1;
- }
- else if (in->sa_family == AF_LOCAL)
- {
- NTSTATUS status;
- HANDLE fh;
- OBJECT_ATTRIBUTES attr;
- IO_STATUS_BLOCK io;
-
- path_conv pc (in->sa_data, PC_SYM_FOLLOW);
- if (pc.error)
- {
- set_errno (pc.error);
- return 0;
- }
- if (!pc.exists ())
- {
- set_errno (ENOENT);
- return 0;
- }
- /* Do NOT test for the file being a socket file here. The socket file
- creation is not an atomic operation, so there is a chance that socket
- files which are just in the process of being created are recognized
- as non-socket files. To work around this problem we now create the
- file with all sharing disabled. If the below NtOpenFile fails
- with STATUS_SHARING_VIOLATION we know that the file already exists,
- but the creating process isn't finished yet. So we yield and try
- again, until we can either open the file successfully, or some error
- other than STATUS_SHARING_VIOLATION occurs.
- Since we now don't know if the file is actually a socket file, we
- perform this check here explicitely. */
- pc.get_object_attr (attr, sec_none_nih);
- do
- {
- status = NtOpenFile (&fh, GENERIC_READ | SYNCHRONIZE, &attr, &io,
- FILE_SHARE_VALID_FLAGS,
- FILE_SYNCHRONOUS_IO_NONALERT
- | FILE_OPEN_FOR_BACKUP_INTENT);
- if (status == STATUS_SHARING_VIOLATION)
- yield ();
- else if (!NT_SUCCESS (status))
- {
- __seterrno_from_nt_status (status);
- return 0;
- }
- }
- while (status == STATUS_SHARING_VIOLATION);
- int ret = 0;
- char buf[128];
- memset (buf, 0, sizeof buf);
- status = NtReadFile (fh, NULL, NULL, NULL, &io, buf, 128, NULL, NULL);
- NtClose (fh);
- if (NT_SUCCESS (status))
- {
- struct sockaddr_in sin;
- char ctype;
- sin.sin_family = AF_INET;
- if (strncmp (buf, SOCKET_COOKIE, strlen (SOCKET_COOKIE)))
- {
- set_errno (EBADF);
- return 0;
- }
- sscanf (buf + strlen (SOCKET_COOKIE), "%hu %c %08x-%08x-%08x-%08x",
- &sin.sin_port,
- &ctype,
- secret_ptr, secret_ptr + 1, secret_ptr + 2, secret_ptr + 3);
- sin.sin_port = htons (sin.sin_port);
- sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- memcpy (out, &sin, sizeof sin);
- *outlen = sizeof sin;
- if (type)
- *type = (ctype == 's' ? SOCK_STREAM :
- ctype == 'd' ? SOCK_DGRAM
- : 0);
- ret = 1;
- }
- else
- __seterrno_from_nt_status (status);
- return ret;
- }
- else
- {
- set_errno (EAFNOSUPPORT);
- return 0;
- }
-}
-
-/**********************************************************************/
-/* fhandler_socket */
-
-fhandler_socket::fhandler_socket () :
- fhandler_base (),
- wsock_events (NULL),
- wsock_mtx (NULL),
- wsock_evt (NULL),
- prot_info_ptr (NULL),
- sun_path (NULL),
- peer_sun_path (NULL),
- status ()
-{
- need_fork_fixup (true);
-}
-
-fhandler_socket::~fhandler_socket ()
-{
- if (prot_info_ptr)
- cfree (prot_info_ptr);
- if (sun_path)
- cfree (sun_path);
- if (peer_sun_path)
- cfree (peer_sun_path);
-}
-
-char *
-fhandler_socket::get_proc_fd_name (char *buf)
-{
- __small_sprintf (buf, "socket:[%d]", get_socket ());
- return buf;
-}
-
-int
-fhandler_socket::open (int flags, mode_t mode)
-{
- set_errno (ENXIO);
- return 0;
-}
-
-void
-fhandler_socket::af_local_set_sockpair_cred ()
-{
- sec_pid = sec_peer_pid = getpid ();
- sec_uid = sec_peer_uid = geteuid32 ();
- sec_gid = sec_peer_gid = getegid32 ();
-}
-
-void
-fhandler_socket::af_local_setblocking (bool &async, bool &nonblocking)
-{
- async = async_io ();
- nonblocking = is_nonblocking ();
- if (async)
- {
- WSAAsyncSelect (get_socket (), winmsg, 0, 0);
- WSAEventSelect (get_socket (), wsock_evt, EVENT_MASK);
- }
- set_nonblocking (false);
- async_io (false);
-}
-
-void
-fhandler_socket::af_local_unsetblocking (bool async, bool nonblocking)
-{
- if (nonblocking)
- set_nonblocking (true);
- if (async)
- {
- WSAAsyncSelect (get_socket (), winmsg, WM_ASYNCIO, ASYNC_MASK);
- async_io (true);
- }
-}
-
-bool
-fhandler_socket::af_local_recv_secret ()
-{
- int out[4] = { 0, 0, 0, 0 };
- int rest = sizeof out;
- char *ptr = (char *) out;
- while (rest > 0)
- {
- int ret = recvfrom (ptr, rest, 0, NULL, NULL);
- if (ret <= 0)
- break;
- rest -= ret;
- ptr += ret;
- }
- if (rest == 0)
- {
- debug_printf ("Received af_local secret: %08x-%08x-%08x-%08x",
- out[0], out[1], out[2], out[3]);
- if (out[0] != connect_secret[0] || out[1] != connect_secret[1]
- || out[2] != connect_secret[2] || out[3] != connect_secret[3])
- {
- debug_printf ("Receiving af_local secret mismatch");
- return false;
- }
- }
- else
- debug_printf ("Receiving af_local secret failed");
- return rest == 0;
-}
-
-bool
-fhandler_socket::af_local_send_secret ()
-{
- int rest = sizeof connect_secret;
- char *ptr = (char *) connect_secret;
- while (rest > 0)
- {
- int ret = sendto (ptr, rest, 0, NULL, 0);
- if (ret <= 0)
- break;
- rest -= ret;
- ptr += ret;
- }
- debug_printf ("Sending af_local secret %s", rest == 0 ? "succeeded"
- : "failed");
- return rest == 0;
-}
-
-bool
-fhandler_socket::af_local_recv_cred ()
-{
- struct ucred out = { (pid_t) 0, (__uid32_t) -1, (__gid32_t) -1 };
- int rest = sizeof out;
- char *ptr = (char *) &out;
- while (rest > 0)
- {
- int ret = recvfrom (ptr, rest, 0, NULL, NULL);
- if (ret <= 0)
- break;
- rest -= ret;
- ptr += ret;
- }
- if (rest == 0)
- {
- debug_printf ("Received eid credentials: pid: %d, uid: %d, gid: %d",
- out.pid, out.uid, out.gid);
- sec_peer_pid = out.pid;
- sec_peer_uid = out.uid;
- sec_peer_gid = out.gid;
- }
- else
- debug_printf ("Receiving eid credentials failed");
- return rest == 0;
-}
-
-bool
-fhandler_socket::af_local_send_cred ()
-{
- struct ucred in = { sec_pid, sec_uid, sec_gid };
- int rest = sizeof in;
- char *ptr = (char *) &in;
- while (rest > 0)
- {
- int ret = sendto (ptr, rest, 0, NULL, 0);
- if (ret <= 0)
- break;
- rest -= ret;
- ptr += ret;
- }
- if (rest == 0)
- debug_printf ("Sending eid credentials succeeded");
- else
- debug_printf ("Sending eid credentials failed");
- return rest == 0;
-}
-
-int
-fhandler_socket::af_local_connect ()
-{
- /* This keeps the test out of select. */
- if (get_addr_family () != AF_LOCAL || get_socket_type () != SOCK_STREAM)
- return 0;
-
- debug_printf ("af_local_connect called");
- bool orig_async_io, orig_is_nonblocking;
- af_local_setblocking (orig_async_io, orig_is_nonblocking);
- if (!af_local_send_secret () || !af_local_recv_secret ()
- || !af_local_send_cred () || !af_local_recv_cred ())
- {
- debug_printf ("accept from unauthorized server");
- ::shutdown (get_socket (), SD_BOTH);
- WSASetLastError (WSAECONNREFUSED);
- return -1;
- }
- af_local_unsetblocking (orig_async_io, orig_is_nonblocking);
- return 0;
-}
-
-int
-fhandler_socket::af_local_accept ()
-{
- debug_printf ("af_local_accept called");
- bool orig_async_io, orig_is_nonblocking;
- af_local_setblocking (orig_async_io, orig_is_nonblocking);
- if (!af_local_recv_secret () || !af_local_send_secret ()
- || !af_local_recv_cred () || !af_local_send_cred ())
- {
- debug_printf ("connect from unauthorized client");
- ::shutdown (get_socket (), SD_BOTH);
- ::closesocket (get_socket ());
- WSASetLastError (WSAECONNABORTED);
- return -1;
- }
- af_local_unsetblocking (orig_async_io, orig_is_nonblocking);
- return 0;
-}
-
-void
-fhandler_socket::af_local_set_cred ()
-{
- sec_pid = getpid ();
- sec_uid = geteuid32 ();
- sec_gid = getegid32 ();
- sec_peer_pid = (pid_t) 0;
- sec_peer_uid = (__uid32_t) -1;
- sec_peer_gid = (__gid32_t) -1;
-}
-
-void
-fhandler_socket::af_local_copy (fhandler_socket *sock)
-{
- sock->connect_secret[0] = connect_secret[0];
- sock->connect_secret[1] = connect_secret[1];
- sock->connect_secret[2] = connect_secret[2];
- sock->connect_secret[3] = connect_secret[3];
- sock->sec_pid = sec_pid;
- sock->sec_uid = sec_uid;
- sock->sec_gid = sec_gid;
- sock->sec_peer_pid = sec_peer_pid;
- sock->sec_peer_uid = sec_peer_uid;
- sock->sec_peer_gid = sec_peer_gid;
-}
-
-void
-fhandler_socket::af_local_set_secret (char *buf)
-{
- if (!entropy_source)
- {
- void *buf = malloc (sizeof (fhandler_dev_random));
- entropy_source = new (buf) fhandler_dev_random ();
- entropy_source->dev () = *urandom_dev;
- }
- if (entropy_source &&
- !entropy_source->open (O_RDONLY))
- {
- delete entropy_source;
- entropy_source = NULL;
- }
- if (entropy_source)
- {
- size_t len = sizeof (connect_secret);
- entropy_source->read (connect_secret, len);
- if (len != sizeof (connect_secret))
- bzero ((char*) connect_secret, sizeof (connect_secret));
- }
- __small_sprintf (buf, "%08x-%08x-%08x-%08x",
- connect_secret [0], connect_secret [1],
- connect_secret [2], connect_secret [3]);
-}
-
-/* Maximum number of concurrently opened sockets from all Cygwin processes
- per session. Note that shared sockets (through dup/fork/exec) are
- counted as one socket. */
-#define NUM_SOCKS (32768 / sizeof (wsa_event))
-
-#define LOCK_EVENTS WaitForSingleObject (wsock_mtx, INFINITE)
-#define UNLOCK_EVENTS ReleaseMutex (wsock_mtx)
-
-static wsa_event wsa_events[NUM_SOCKS] __attribute__((section (".cygwin_dll_common"), shared));
-
-static LONG socket_serial_number __attribute__((section (".cygwin_dll_common"), shared));
-
-static HANDLE wsa_slot_mtx;
-
-static PWCHAR
-sock_shared_name (PWCHAR buf, LONG num)
-{
- __small_swprintf (buf, L"socket.%d", num);
- return buf;
-}
-
-static wsa_event *
-search_wsa_event_slot (LONG new_serial_number)
-{
- WCHAR name[32], searchname[32];
- UNICODE_STRING uname;
- OBJECT_ATTRIBUTES attr;
- NTSTATUS status;
-
- if (!wsa_slot_mtx)
- {
- RtlInitUnicodeString (&uname, sock_shared_name (name, 0));
- InitializeObjectAttributes (&attr, &uname, OBJ_INHERIT | OBJ_OPENIF,
- get_session_parent_dir (),
- everyone_sd (CYG_MUTANT_ACCESS));
- status = NtCreateMutant (&wsa_slot_mtx, CYG_MUTANT_ACCESS, &attr, FALSE);
- if (!NT_SUCCESS (status))
- api_fatal ("Couldn't create/open shared socket mutex %S, %p",
- &uname, status);
- }
- switch (WaitForSingleObject (wsa_slot_mtx, INFINITE))
- {
- case WAIT_OBJECT_0:
- case WAIT_ABANDONED:
- break;
- default:
- api_fatal ("WFSO failed for shared socket mutex, %E");
- break;
- }
- unsigned int slot = new_serial_number % NUM_SOCKS;
- while (wsa_events[slot].serial_number)
- {
- HANDLE searchmtx;
- RtlInitUnicodeString (&uname, sock_shared_name (searchname,
- wsa_events[slot].serial_number));
- InitializeObjectAttributes (&attr, &uname, 0, get_session_parent_dir (),
- NULL);
- status = NtOpenMutant (&searchmtx, READ_CONTROL, &attr);
- if (!NT_SUCCESS (status))
- break;
- /* Mutex still exists, attached socket is active, try next slot. */
- NtClose (searchmtx);
- slot = (slot + 1) % NUM_SOCKS;
- if (slot == (new_serial_number % NUM_SOCKS))
- {
- /* Did the whole array once. Too bad. */
- debug_printf ("No free socket slot");
- ReleaseMutex (wsa_slot_mtx);
- return NULL;
- }
- }
- memset (&wsa_events[slot], 0, sizeof (wsa_event));
- wsa_events[slot].serial_number = new_serial_number;
- ReleaseMutex (wsa_slot_mtx);
- return wsa_events + slot;
-}
-
-bool
-fhandler_socket::init_events ()
-{
- LONG new_serial_number;
- WCHAR name[32];
- UNICODE_STRING uname;
- OBJECT_ATTRIBUTES attr;
- NTSTATUS status;
-
- do
- {
- new_serial_number =
- InterlockedIncrement (&socket_serial_number);
- if (!new_serial_number) /* 0 is reserved for global mutex */
- InterlockedIncrement (&socket_serial_number);
- RtlInitUnicodeString (&uname, sock_shared_name (name, new_serial_number));
- InitializeObjectAttributes (&attr, &uname, OBJ_INHERIT | OBJ_OPENIF,
- get_session_parent_dir (),
- everyone_sd (CYG_MUTANT_ACCESS));
- status = NtCreateMutant (&wsock_mtx, CYG_MUTANT_ACCESS, &attr, FALSE);
- if (!NT_SUCCESS (status))
- {
- debug_printf ("NtCreateMutant(%S), %p", &uname, status);
- set_errno (ENOBUFS);
- return false;
- }
- if (status == STATUS_OBJECT_NAME_EXISTS)
- NtClose (wsock_mtx);
- }
- while (status == STATUS_OBJECT_NAME_EXISTS);
- if ((wsock_evt = CreateEvent (&sec_all, TRUE, FALSE, NULL))
- == WSA_INVALID_EVENT)
- {
- debug_printf ("CreateEvent, %E");
- set_errno (ENOBUFS);
- NtClose (wsock_mtx);
- return false;
- }
- if (WSAEventSelect (get_socket (), wsock_evt, EVENT_MASK) == SOCKET_ERROR)
- {
- debug_printf ("WSAEventSelect, %E");
- set_winsock_errno ();
- NtClose (wsock_evt);
- NtClose (wsock_mtx);
- return false;
- }
- wsock_events = search_wsa_event_slot (new_serial_number);
- /* sock type not yet set here. */
- if (pc.dev == FH_UDP || pc.dev == FH_DGRAM)
- wsock_events->events = FD_WRITE;
- return true;
-}
-
-int
-fhandler_socket::evaluate_events (const long event_mask, long &events,
- const bool erase)
-{
- int ret = 0;
- long events_now = 0;
-
- WSANETWORKEVENTS evts = { 0 };
- if (!(WSAEnumNetworkEvents (get_socket (), wsock_evt, &evts)))
- {
- if (evts.lNetworkEvents)
- {
- LOCK_EVENTS;
- wsock_events->events |= evts.lNetworkEvents;
- events_now = (wsock_events->events & event_mask);
- if (evts.lNetworkEvents & FD_CONNECT)
- wsock_events->connect_errorcode = evts.iErrorCode[FD_CONNECT_BIT];
- UNLOCK_EVENTS;
- if ((evts.lNetworkEvents & FD_OOB) && wsock_events->owner)
- kill (wsock_events->owner, SIGURG);
- }
- }
-
- LOCK_EVENTS;
- if ((events = events_now) != 0
- || (events = (wsock_events->events & event_mask)) != 0)
- {
- if (events & FD_CONNECT)
- {
- int wsa_err = 0;
- if ((wsa_err = wsock_events->connect_errorcode) != 0)
- {
- WSASetLastError (wsa_err);
- ret = SOCKET_ERROR;
- }
- else
- wsock_events->events |= FD_WRITE;
- wsock_events->events &= ~FD_CONNECT;
- wsock_events->connect_errorcode = 0;
- }
- if (erase)
- wsock_events->events &= ~(events & ~(FD_WRITE | FD_CLOSE));
- }
- UNLOCK_EVENTS;
-
- return ret;
-}
-
-int
-fhandler_socket::wait_for_events (const long event_mask, const DWORD flags)
-{
- if (async_io ())
- return 0;
-
- int ret;
- long events;
-
- while (!(ret = evaluate_events (event_mask, events, !(flags & MSG_PEEK)))
- && !events)
- {
- if (is_nonblocking () || (flags & MSG_DONTWAIT))
- {
- WSASetLastError (WSAEWOULDBLOCK);
- return SOCKET_ERROR;
- }
-
- WSAEVENT ev[2] = { wsock_evt, signal_arrived };
- switch (WSAWaitForMultipleEvents (2, ev, FALSE, 50, FALSE))
- {
- case WSA_WAIT_TIMEOUT:
- case WSA_WAIT_EVENT_0:
- break;
-
- case WSA_WAIT_EVENT_0 + 1:
- if (_my_tls.call_signal_handler ())
- break;
- WSASetLastError (WSAEINTR);
- return SOCKET_ERROR;
-
- default:
- WSASetLastError (WSAEFAULT);
- return SOCKET_ERROR;
- }
- }
-
- return ret;
-}
-
-void
-fhandler_socket::release_events ()
-{
- NtClose (wsock_evt);
- NtClose (wsock_mtx);
-}
-
-/* Called from net.cc:fdsock() if a freshly created socket is not
- inheritable. In that case we use fixup_before_fork_exec. See
- the comment in fdsock() for a description of the problem. */
-void
-fhandler_socket::init_fixup_before ()
-{
- prot_info_ptr = (LPWSAPROTOCOL_INFOW)
- cmalloc_abort (HEAP_BUF, sizeof (WSAPROTOCOL_INFOW));
- cygheap->fdtab.inc_need_fixup_before ();
-}
-
-int
-fhandler_socket::fixup_before_fork_exec (DWORD win_pid)
-{
- SOCKET ret = WSADuplicateSocketW (get_socket (), win_pid, prot_info_ptr);
- if (ret)
- set_winsock_errno ();
- else
- debug_printf ("WSADuplicateSocket succeeded (%lx)", prot_info_ptr->dwProviderReserved);
- return (int) ret;
-}
-
-void
-fhandler_socket::fixup_after_fork (HANDLE parent)
-{
- fork_fixup (parent, wsock_mtx, "wsock_mtx");
- fork_fixup (parent, wsock_evt, "wsock_evt");
-
- if (!need_fixup_before ())
- {
- fhandler_base::fixup_after_fork (parent);
- return;
- }
-
- SOCKET new_sock = WSASocketW (FROM_PROTOCOL_INFO, FROM_PROTOCOL_INFO,
- FROM_PROTOCOL_INFO, prot_info_ptr, 0,
- WSA_FLAG_OVERLAPPED);
- if (new_sock == INVALID_SOCKET)
- {
- set_winsock_errno ();
- set_io_handle ((HANDLE) INVALID_SOCKET);
- }
- else
- {
- /* Even though the original socket was not inheritable, the duplicated
- socket is potentially inheritable again. */
- SetHandleInformation ((HANDLE) new_sock, HANDLE_FLAG_INHERIT, 0);
- set_io_handle ((HANDLE) new_sock);
- debug_printf ("WSASocket succeeded (%lx)", new_sock);
- }
-}
-
-void
-fhandler_socket::fixup_after_exec ()
-{
- if (need_fixup_before () && !close_on_exec ())
- fixup_after_fork (NULL);
-}
-
-int
-fhandler_socket::dup (fhandler_base *child)
-{
- debug_printf ("here");
- fhandler_socket *fhs = (fhandler_socket *) child;
-
- if (!DuplicateHandle (GetCurrentProcess (), wsock_mtx,
- GetCurrentProcess (), &fhs->wsock_mtx,
- 0, TRUE, DUPLICATE_SAME_ACCESS))
- {
- __seterrno ();
- return -1;
- }
- if (!DuplicateHandle (GetCurrentProcess (), wsock_evt,
- GetCurrentProcess (), &fhs->wsock_evt,
- 0, TRUE, DUPLICATE_SAME_ACCESS))
- {
- __seterrno ();
- NtClose (fhs->wsock_mtx);
- return -1;
- }
- fhs->wsock_events = wsock_events;
-
- fhs->rmem (rmem ());
- fhs->wmem (wmem ());
- fhs->addr_family = addr_family;
- fhs->set_socket_type (get_socket_type ());
- if (get_addr_family () == AF_LOCAL)
- {
- fhs->set_sun_path (get_sun_path ());
- fhs->set_peer_sun_path (get_peer_sun_path ());
- if (get_socket_type () == SOCK_STREAM)
- {
- fhs->sec_pid = sec_pid;
- fhs->sec_uid = sec_uid;
- fhs->sec_gid = sec_gid;
- fhs->sec_peer_pid = sec_peer_pid;
- fhs->sec_peer_uid = sec_peer_uid;
- fhs->sec_peer_gid = sec_peer_gid;
- }
- }
- fhs->connect_state (connect_state ());
-
- if (!need_fixup_before ())
- {
- int ret = fhandler_base::dup (child);
- if (ret)
- {
- NtClose (fhs->wsock_evt);
- NtClose (fhs->wsock_mtx);
- }
- return ret;
- }
-
- cygheap->user.deimpersonate ();
- fhs->init_fixup_before ();
- fhs->set_io_handle (get_io_handle ());
- if (!fhs->fixup_before_fork_exec (GetCurrentProcessId ()))
- {
- cygheap->user.reimpersonate ();
- fhs->fixup_after_fork (GetCurrentProcess ());
- if (fhs->get_io_handle() != (HANDLE) INVALID_SOCKET)
- return 0;
- }
- cygheap->user.reimpersonate ();
- cygheap->fdtab.dec_need_fixup_before ();
- NtClose (fhs->wsock_evt);
- NtClose (fhs->wsock_mtx);
- return -1;
-}
-
-int __stdcall
-fhandler_socket::fstat (struct __stat64 *buf)
-{
- int res;
- if (get_device () == FH_UNIX)
- {
- res = fhandler_base::fstat_fs (buf);
- if (!res)
- {
- buf->st_mode = (buf->st_mode & ~S_IFMT) | S_IFSOCK;
- buf->st_size = 0;
- }
- }
- else
- {
- res = fhandler_base::fstat (buf);
- if (!res)
- {
- buf->st_dev = 0;
- buf->st_ino = (__ino64_t) ((DWORD) get_handle ());
- buf->st_mode = S_IFSOCK | S_IRWXU | S_IRWXG | S_IRWXO;
- buf->st_size = 0;
- }
- }
- return res;
-}
-
-int __stdcall
-fhandler_socket::fstatvfs (struct statvfs *sfs)
-{
- if (get_device () == FH_UNIX)
- {
- fhandler_disk_file fh (pc);
- fh.get_device () = FH_FS;
- return fh.fstatvfs (sfs);
- }
- set_errno (EBADF);
- return -1;
-}
-
-int
-fhandler_socket::fchmod (mode_t mode)
-{
- if (get_device () == FH_UNIX)
- {
- fhandler_disk_file fh (pc);
- fh.get_device () = FH_FS;
- int ret = fh.fchmod (S_IFSOCK | adjust_socket_file_mode (mode));
- return ret;
- }
- set_errno (EBADF);
- return -1;
-}
-
-int
-fhandler_socket::fchown (__uid32_t uid, __gid32_t gid)
-{
- if (get_device () == FH_UNIX)
- {
- fhandler_disk_file fh (pc);
- return fh.fchown (uid, gid);
- }
- set_errno (EBADF);
- return -1;
-}
-
-int
-fhandler_socket::facl (int cmd, int nentries, __aclent32_t *aclbufp)
-{
- if (get_device () == FH_UNIX)
- {
- fhandler_disk_file fh (pc);
- return fh.facl (cmd, nentries, aclbufp);
- }
- set_errno (EBADF);
- return -1;
-}
-
-int
-fhandler_socket::link (const char *newpath)
-{
- if (get_device () == FH_UNIX)
- {
- fhandler_disk_file fh (pc);
- return fh.link (newpath);
- }
- return fhandler_base::link (newpath);
-}
-
-static inline bool
-address_in_use (const struct sockaddr *addr)
-{
- switch (addr->sa_family)
- {
- case AF_INET:
- {
- PMIB_TCPTABLE tab;
- PMIB_TCPROW entry;
- DWORD size = 0, i;
- struct sockaddr_in *in = (struct sockaddr_in *) addr;
-
- if (GetTcpTable (NULL, &size, FALSE) == ERROR_INSUFFICIENT_BUFFER)
- {
- tab = (PMIB_TCPTABLE) alloca (size += 16 * sizeof (PMIB_TCPROW));
- if (!GetTcpTable (tab, &size, FALSE))
- for (i = tab->dwNumEntries, entry = tab->table; i > 0;
- --i, ++entry)
- if (entry->dwLocalAddr == in->sin_addr.s_addr
- && entry->dwLocalPort == in->sin_port
- && entry->dwState >= MIB_TCP_STATE_LISTEN
- && entry->dwState <= MIB_TCP_STATE_LAST_ACK)
- return true;
- }
- }
- break;
- case AF_INET6:
- {
- /* This test works on XP SP2 and above which should cover almost
- all IPv6 users... */
- PMIB_TCP6TABLE_OWNER_PID tab;
- PMIB_TCP6ROW_OWNER_PID entry;
- DWORD size = 0, i;
- struct sockaddr_in6 *in6 = (struct sockaddr_in6 *) addr;
-
- if (GetExtendedTcpTable (NULL, &size, FALSE, AF_INET6,
- TCP_TABLE_OWNER_PID_ALL, 0)
- == ERROR_INSUFFICIENT_BUFFER)
- {
- tab = (PMIB_TCP6TABLE_OWNER_PID)
- alloca (size += 16 * sizeof (PMIB_TCP6ROW_OWNER_PID));
- if (!GetExtendedTcpTable (tab, &size, FALSE, AF_INET6,
- TCP_TABLE_OWNER_PID_ALL, 0))
- for (i = tab->dwNumEntries, entry = tab->table; i > 0;
- --i, ++entry)
- if (IN6_ARE_ADDR_EQUAL (entry->ucLocalAddr,
- in6->sin6_addr.s6_addr)
- /* FIXME: Is testing for the scope required. too?!? */
- && entry->dwLocalPort == in6->sin6_port
- && entry->dwState >= MIB_TCP_STATE_LISTEN
- && entry->dwState <= MIB_TCP_STATE_LAST_ACK)
- return true;
- }
- }
- break;
- default:
- break;
- }
- return false;
-}
-
-int
-fhandler_socket::bind (const struct sockaddr *name, int namelen)
-{
- int res = -1;
-
- if (name->sa_family == AF_LOCAL)
- {
-#define un_addr ((struct sockaddr_un *) name)
- struct sockaddr_in sin;
- int len = sizeof sin;
-
- if (strlen (un_addr->sun_path) >= UNIX_PATH_LEN)
- {
- set_errno (ENAMETOOLONG);
- goto out;
- }
- sin.sin_family = AF_INET;
- sin.sin_port = 0;
- sin.sin_addr.s_addr = htonl (INADDR_LOOPBACK);
- if (::bind (get_socket (), (sockaddr *) &sin, len))
- {
- syscall_printf ("AF_LOCAL: bind failed");
- set_winsock_errno ();
- goto out;
- }
- if (::getsockname (get_socket (), (sockaddr *) &sin, &len))
- {
- syscall_printf ("AF_LOCAL: getsockname failed");
- set_winsock_errno ();
- goto out;
- }
-
- sin.sin_port = ntohs (sin.sin_port);
- debug_printf ("AF_LOCAL: socket bound to port %u", sin.sin_port);
-
- path_conv pc (un_addr->sun_path, PC_SYM_FOLLOW);
- if (pc.error)
- {
- set_errno (pc.error);
- goto out;
- }
- if (pc.exists ())
- {
- set_errno (EADDRINUSE);
- goto out;
- }
- mode_t mode = adjust_socket_file_mode ((S_IRWXU | S_IRWXG | S_IRWXO)
- & ~cygheap->umask);
- DWORD fattr = FILE_ATTRIBUTE_SYSTEM;
- if (!(mode & (S_IWUSR | S_IWGRP | S_IWOTH)))
- fattr |= FILE_ATTRIBUTE_READONLY;
- SECURITY_ATTRIBUTES sa = sec_none_nih;
- NTSTATUS status;
- HANDLE fh;
- OBJECT_ATTRIBUTES attr;
- IO_STATUS_BLOCK io;
-
- status = NtCreateFile (&fh, DELETE | FILE_GENERIC_WRITE,
- pc.get_object_attr (attr, sa), &io, NULL, fattr,
- 0, FILE_CREATE,
- FILE_NON_DIRECTORY_FILE
- | FILE_SYNCHRONOUS_IO_NONALERT
- | FILE_OPEN_FOR_BACKUP_INTENT,
- NULL, 0);
- if (!NT_SUCCESS (status))
- {
- if (io.Information == FILE_EXISTS)
- set_errno (EADDRINUSE);
- else
- __seterrno_from_nt_status (status);
- }
- else
- {
- if (pc.has_acls ())
- set_file_attribute (fh, pc, ILLEGAL_UID, ILLEGAL_GID,
- S_JUSTCREATED | mode);
- char buf[sizeof (SOCKET_COOKIE) + 80];
- __small_sprintf (buf, "%s%u %c ", SOCKET_COOKIE, sin.sin_port,
- get_socket_type () == SOCK_STREAM ? 's'
- : get_socket_type () == SOCK_DGRAM ? 'd' : '-');
- af_local_set_secret (strchr (buf, '\0'));
- DWORD blen = strlen (buf) + 1;
- status = NtWriteFile (fh, NULL, NULL, NULL, &io, buf, blen, NULL, 0);
- if (!NT_SUCCESS (status))
- {
- __seterrno_from_nt_status (status);
- FILE_DISPOSITION_INFORMATION fdi = { TRUE };
- status = NtSetInformationFile (fh, &io, &fdi, sizeof fdi,
- FileDispositionInformation);
- if (!NT_SUCCESS (status))
- debug_printf ("Setting delete dispostion failed, status = %p",
- status);
- }
- else
- {
- set_sun_path (un_addr->sun_path);
- res = 0;
- }
- NtClose (fh);
- }
-#undef un_addr
- }
- else
- {
- if (!saw_reuseaddr ())
- {
- /* If the application didn't explicitely call setsockopt
- (SO_REUSEADDR), enforce exclusive local address use using the
- SO_EXCLUSIVEADDRUSE socket option, to emulate POSIX socket
- behaviour more closely.
-
- KB 870562: Note that a bug in Win2K SP1-3 and XP up to SP1 only
- enables this option for users in the local administrators group. */
- int on = 1;
- int ret = ::setsockopt (get_socket (), SOL_SOCKET,
- ~(SO_REUSEADDR),
- (const char *) &on, sizeof on);
- debug_printf ("%d = setsockopt (SO_EXCLUSIVEADDRUSE), %E", ret);
- }
- else if (!wincap.has_enhanced_socket_security ())
- {
- debug_printf ("SO_REUSEADDR set");
- /* There's a bug in SO_REUSEADDR handling in WinSock.
- Per standards, we must not be able to reuse a complete
- duplicate of a local TCP address (same IP, same port),
- even if SO_REUSEADDR has been set. That's unfortunately
- possible in WinSock.
-
- So we're testing here if the local address is already in
- use and don't bind, if so. This only works for OSes with
- IP Helper support and is, of course, still prone to races.
-
- However, we don't have to do this on systems supporting
- "enhanced socket security" (2K3 and later). On these
- systems the default binding behaviour is exactly as you'd
- expect for SO_REUSEADDR, while setting SO_REUSEADDR re-enables
- the wrong behaviour. So all we have to do on these newer
- systems is never to set SO_REUSEADDR but only to note that
- it has been set for the above SO_EXCLUSIVEADDRUSE setting.
- See setsockopt() in net.cc. */
- if (get_socket_type () == SOCK_STREAM && address_in_use (name))
- {
- debug_printf ("Local address in use, don't bind");
- set_errno (EADDRINUSE);
- goto out;
- }
- }
- if (::bind (get_socket (), name, namelen))
- set_winsock_errno ();
- else
- res = 0;
- }
-
-out:
- return res;
-}
-
-int
-fhandler_socket::connect (const struct sockaddr *name, int namelen)
-{
- int res = -1;
- bool in_progress = false;
- struct sockaddr_storage sst;
- DWORD err;
- int type;
-
- if (!get_inet_addr (name, namelen, &sst, &namelen, &type, connect_secret))
- return -1;
-
- if (get_addr_family () == AF_LOCAL && get_socket_type () != type)
- {
- WSASetLastError (WSAEPROTOTYPE);
- set_winsock_errno ();
- return -1;
- }
-
- res = ::connect (get_socket (), (struct sockaddr *) &sst, namelen);
- if (!is_nonblocking ()
- && res == SOCKET_ERROR
- && WSAGetLastError () == WSAEWOULDBLOCK)
- res = wait_for_events (FD_CONNECT | FD_CLOSE, 0);
-
- if (!res)
- err = 0;
- else
- {
- err = WSAGetLastError ();
- /* Special handling for connect to return the correct error code
- when called on a non-blocking socket. */
- if (is_nonblocking ())
- {
- if (err == WSAEWOULDBLOCK || err == WSAEALREADY)
- in_progress = true;
-
- if (err == WSAEWOULDBLOCK)
- WSASetLastError (err = WSAEINPROGRESS);
- }
- if (err == WSAEINVAL)
- WSASetLastError (err = WSAEISCONN);
- set_winsock_errno ();
- }
-
- if (get_addr_family () == AF_LOCAL && (!res || in_progress))
- set_peer_sun_path (name->sa_data);
-
- if (get_addr_family () == AF_LOCAL && get_socket_type () == SOCK_STREAM)
- {
- af_local_set_cred (); /* Don't move into af_local_connect since
- af_local_connect is called from select,
- possibly running under another identity. */
- if (!res && af_local_connect ())
- {
- set_winsock_errno ();
- return -1;
- }
- }
-
- if (err == WSAEINPROGRESS || err == WSAEALREADY)
- connect_state (connect_pending);
- else if (err)
- connect_state (connect_failed);
- else
- connect_state (connected);
-
- return res;
-}
-
-int
-fhandler_socket::listen (int backlog)
-{
- int res = ::listen (get_socket (), backlog);
- if (res && WSAGetLastError () == WSAEINVAL)
- {
- /* It's perfectly valid to call listen on an unbound INET socket.
- In this case the socket is automatically bound to an unused
- port number, listening on all interfaces. On Winsock, listen
- fails with WSAEINVAL when it's called on an unbound socket.
- So we have to bind manually here to have POSIX semantics. */
- if (get_addr_family () == AF_INET)
- {
- struct sockaddr_in sin;
- sin.sin_family = AF_INET;
- sin.sin_port = 0;
- sin.sin_addr.s_addr = INADDR_ANY;
- if (!::bind (get_socket (), (struct sockaddr *) &sin, sizeof sin))
- res = ::listen (get_socket (), backlog);
- }
- else if (get_addr_family () == AF_INET6)
- {
- struct sockaddr_in6 sin6 =
- {
- sin6_family: AF_INET6,
- sin6_port: 0,
- sin6_flowinfo: 0,
- sin6_addr: {{IN6ADDR_ANY_INIT}},
- sin6_scope_id: 0
- };
- if (!::bind (get_socket (), (struct sockaddr *) &sin6, sizeof sin6))
- res = ::listen (get_socket (), backlog);
- }
- }
- if (!res)
- {
- if (get_addr_family () == AF_LOCAL && get_socket_type () == SOCK_STREAM)
- af_local_set_cred ();
- connect_state (connected);
- listener (true);
- }
- else
- set_winsock_errno ();
- return res;
-}
-
-int
-fhandler_socket::accept4 (struct sockaddr *peer, int *len, int flags)
-{
- /* Allows NULL peer and len parameters. */
- struct sockaddr_storage lpeer;
- int llen = sizeof (struct sockaddr_storage);
-
- int res = 0;
- while (!(res = wait_for_events (FD_ACCEPT | FD_CLOSE, 0))
- && (res = ::accept (get_socket (), (struct sockaddr *) &lpeer, &llen))
- == SOCKET_ERROR
- && WSAGetLastError () == WSAEWOULDBLOCK)
- ;
- if (res == (int) INVALID_SOCKET)
- set_winsock_errno ();
- else
- {
- cygheap_fdnew res_fd;
- if (res_fd >= 0 && fdsock (res_fd, &dev (), res))
- {
- fhandler_socket *sock = (fhandler_socket *) res_fd;
- sock->set_addr_family (get_addr_family ());
- sock->set_socket_type (get_socket_type ());
- sock->async_io (false); /* fdsock switches async mode off. */
- if (get_addr_family () == AF_LOCAL)
- {
- sock->set_sun_path (get_sun_path ());
- sock->set_peer_sun_path (get_peer_sun_path ());
- if (get_socket_type () == SOCK_STREAM)
- {
- /* Don't forget to copy credentials from accepting
- socket to accepted socket and start transaction
- on accepted socket! */
- af_local_copy (sock);
- res = sock->af_local_accept ();
- if (res == -1)
- {
- res_fd.release ();
- set_winsock_errno ();
- goto out;
- }
- }
- }
- sock->set_nonblocking (flags & SOCK_NONBLOCK);
- if (flags & SOCK_CLOEXEC)
- sock->set_close_on_exec (true);
- /* No locking necessary at this point. */
- sock->wsock_events->events = wsock_events->events | FD_WRITE;
- sock->wsock_events->owner = wsock_events->owner;
- sock->connect_state (connected);
- res = res_fd;
- if (peer)
- {
- if (get_addr_family () == AF_LOCAL)
- {
- /* FIXME: Right now we have no way to determine the
- bound socket name of the peer's socket. For now
- we just fake an unbound socket on the other side. */
- static struct sockaddr_un un = { AF_LOCAL, "" };
- memcpy (peer, &un, min (*len, (int) sizeof (un.sun_family)));
- *len = (int) sizeof (un.sun_family);
- }
- else
- {
- memcpy (peer, &lpeer, min (*len, llen));
- *len = llen;
- }
- }
- }
- else
- {
- closesocket (res);
- res = -1;
- }
- }
-
-out:
- debug_printf ("res %d", res);
- return res;
-}
-
-int
-fhandler_socket::getsockname (struct sockaddr *name, int *namelen)
-{
- int res = -1;
-
- if (get_addr_family () == AF_LOCAL)
- {
- struct sockaddr_un sun;
- sun.sun_family = AF_LOCAL;
- sun.sun_path[0] = '\0';
- if (get_sun_path ())
- strncat (sun.sun_path, get_sun_path (), UNIX_PATH_LEN - 1);
- memcpy (name, &sun, min (*namelen, (int) SUN_LEN (&sun) + 1));
- *namelen = (int) SUN_LEN (&sun) + (get_sun_path () ? 1 : 0);
- res = 0;
- }
- else
- {
- /* Always use a local big enough buffer and truncate later as necessary
- per POSIX. WinSock unfortunaltey only returns WSAEFAULT if the buffer
- is too small. */
- struct sockaddr_storage sock;
- int len = sizeof sock;
- res = ::getsockname (get_socket (), (struct sockaddr *) &sock, &len);
- if (!res)
- {
- memcpy (name, &sock, min (*namelen, len));
- *namelen = len;
- }
- else
- {
- if (WSAGetLastError () == WSAEINVAL)
- {
- /* Winsock returns WSAEINVAL if the socket is locally
- unbound. Per SUSv3 this is not an error condition.
- We're faking a valid return value here by creating the
- same content in the sockaddr structure as on Linux. */
- memset (&sock, 0, sizeof sock);
- sock.ss_family = get_addr_family ();
- switch (get_addr_family ())
- {
- case AF_INET:
- res = 0;
- len = (int) sizeof (struct sockaddr_in);
- break;
- case AF_INET6:
- res = 0;
- len = (int) sizeof (struct sockaddr_in6);
- break;
- default:
- WSASetLastError (WSAEOPNOTSUPP);
- break;
- }
- if (!res)
- {
- memcpy (name, &sock, min (*namelen, len));
- *namelen = len;
- }
- }
- if (res)
- set_winsock_errno ();
- }
- }
-
- return res;
-}
-
-int
-fhandler_socket::getpeername (struct sockaddr *name, int *namelen)
-{
- /* Always use a local big enough buffer and truncate later as necessary
- per POSIX. WinSock unfortunately only returns WSAEFAULT if the buffer
- is too small. */
- struct sockaddr_storage sock;
- int len = sizeof sock;
- int res = ::getpeername (get_socket (), (struct sockaddr *) &sock, &len);
- if (res)
- set_winsock_errno ();
- else if (get_addr_family () == AF_LOCAL)
- {
- struct sockaddr_un sun;
- memset (&sun, 0, sizeof sun);
- sun.sun_family = AF_LOCAL;
- sun.sun_path[0] = '\0';
- if (get_peer_sun_path ())
- strncat (sun.sun_path, get_peer_sun_path (), UNIX_PATH_LEN - 1);
- memcpy (name, &sun, min (*namelen, (int) SUN_LEN (&sun) + 1));
- *namelen = (int) SUN_LEN (&sun) + (get_peer_sun_path () ? 1 : 0);
- }
- else
- {
- memcpy (name, &sock, min (*namelen, len));
- *namelen = len;
- }
-
- return res;
-}
-
-int
-fhandler_socket::readv (const struct iovec *const iov, const int iovcnt,
- ssize_t tot)
-{
- struct msghdr msg =
- {
- msg_name: NULL,
- msg_namelen: 0,
- msg_iov: (struct iovec *) iov, // const_cast
- msg_iovlen: iovcnt,
- msg_control: NULL,
- msg_controllen: 0,
- msg_flags: 0
- };
-
- return recvmsg (&msg, 0);
-}
-
-extern "C" {
-#define WSAID_WSARECVMSG \
- {0xf689d7c8,0x6f1f,0x436b,{0x8a,0x53,0xe5,0x4f,0xe3,0x51,0xc3,0x22}};
-typedef int (WSAAPI *LPFN_WSARECVMSG)(SOCKET,LPWSAMSG,LPDWORD,LPWSAOVERLAPPED,
- LPWSAOVERLAPPED_COMPLETION_ROUTINE);
-int WSAAPI WSASendMsg(SOCKET,LPWSAMSG,DWORD,LPDWORD, LPWSAOVERLAPPED,
- LPWSAOVERLAPPED_COMPLETION_ROUTINE);
-};
-
-/* There's no DLL which exports the symbol WSARecvMsg. One has to call
- WSAIoctl as below to fetch the function pointer. Why on earth did the
- MS developers decide not to export a normal symbol for these extension
- functions? */
-inline int
-get_ext_funcptr (SOCKET sock, void *funcptr)
-{
- DWORD bret;
- const GUID guid = WSAID_WSARECVMSG;
- return WSAIoctl (sock, SIO_GET_EXTENSION_FUNCTION_POINTER,
- (void *) &guid, sizeof (GUID), funcptr, sizeof (void *),
- &bret, NULL, NULL);
-}
-
-inline ssize_t
-fhandler_socket::recv_internal (LPWSAMSG wsamsg)
-{
- ssize_t res = 0;
- DWORD ret = 0, wret;
- int evt_mask = FD_READ | ((wsamsg->dwFlags & MSG_OOB) ? FD_OOB : 0);
- LPWSABUF &wsabuf = wsamsg->lpBuffers;
- ULONG &wsacnt = wsamsg->dwBufferCount;
- bool use_recvmsg = false;
- static NO_COPY LPFN_WSARECVMSG WSARecvMsg;
-
- DWORD wait_flags = wsamsg->dwFlags;
- bool waitall = !!(wait_flags & MSG_WAITALL);
- wsamsg->dwFlags &= (MSG_OOB | MSG_PEEK | MSG_DONTROUTE);
- if (wsamsg->Control.len > 0)
- {
- if (!WSARecvMsg
- && get_ext_funcptr (get_socket (), &WSARecvMsg) == SOCKET_ERROR)
- {
- set_winsock_errno ();
- return SOCKET_ERROR;
- }
- use_recvmsg = true;
- }
- if (waitall)
- {
- if (get_socket_type () != SOCK_STREAM)
- {
- WSASetLastError (WSAEOPNOTSUPP);
- set_winsock_errno ();
- return SOCKET_ERROR;
- }
- if (is_nonblocking () || (wsamsg->dwFlags & (MSG_OOB | MSG_PEEK)))
- waitall = false;
- }
-
- /* Note: Don't call WSARecvFrom(MSG_PEEK) without actually having data
- waiting in the buffers, otherwise the event handling gets messed up
- for some reason. */
- while (!(res = wait_for_events (evt_mask | FD_CLOSE, wait_flags))
- || saw_shutdown_read ())
- {
- if (use_recvmsg)
- res = WSARecvMsg (get_socket (), wsamsg, &wret, NULL, NULL);
- /* This is working around a really weird problem in WinSock.
-
- Assume you create a socket, fork the process (thus duplicating
- the socket), connect the socket in the child, then call recv
- on the original socket handle in the parent process.
- In this scenario, calls to WinSock's recvfrom and WSARecvFrom
- in the parent will fail with WSAEINVAL, regardless whether both
- address parameters, name and namelen, are NULL or point to valid
- storage. However, calls to recv and WSARecv succeed as expected.
- Per MSDN, WSAEINVAL in the context of recv means "The socket has not
- been bound". It is as if the recvfrom functions test if the socket
- is bound locally, but in the parent process, WinSock doesn't know
- about that and fails, while the same test is omitted in the recv
- functions.
-
- This also covers another weird case: Winsock returns WSAEFAULT if
- namelen is a valid pointer while name is NULL. Both parameters are
- ignored for TCP sockets, so this only occurs when using UDP socket. */
- else if (!wsamsg->name || get_socket_type () == SOCK_STREAM)
- res = WSARecv (get_socket (), wsabuf, wsacnt, &wret, &wsamsg->dwFlags,
- NULL, NULL);
- else
- res = WSARecvFrom (get_socket (), wsabuf, wsacnt, &wret,
- &wsamsg->dwFlags, wsamsg->name, &wsamsg->namelen,
- NULL, NULL);
- if (!res)
- {
- ret += wret;
- if (!waitall)
- break;
- while (wret && wsacnt)
- {
- if (wsabuf->len > wret)
- {
- wsabuf->len -= wret;
- wsabuf->buf += wret;
- wret = 0;
- }
- else
- {
- wret -= wsabuf->len;
- ++wsabuf;
- --wsacnt;
- }
- }
- if (!wret)
- break;
- }
- else if (WSAGetLastError () != WSAEWOULDBLOCK)
- break;
- }
-
- if (res)
- {
- /* According to SUSv3, errno isn't set in that case and no error
- condition is returned. */
- if (WSAGetLastError () == WSAEMSGSIZE)
- return ret + wret;
-
- if (!ret)
- {
- /* ESHUTDOWN isn't defined for recv in SUSv3. Simply EOF is returned
- in this case. */
- if (WSAGetLastError () == WSAESHUTDOWN)
- return 0;
-
- set_winsock_errno ();
- return SOCKET_ERROR;
- }
- }
-
- return ret;
-}
-
-ssize_t
-fhandler_socket::recvfrom (void *ptr, size_t len, int flags,
- struct sockaddr *from, int *fromlen)
-{
- WSABUF wsabuf = { len, (char *) ptr };
- WSAMSG wsamsg = { from, from && fromlen ? *fromlen : 0,
- &wsabuf, 1,
- { 0, NULL},
- flags };
- ssize_t ret = recv_internal (&wsamsg);
- if (fromlen)
- *fromlen = wsamsg.namelen;
- return ret;
-}
-
-ssize_t
-fhandler_socket::recvmsg (struct msghdr *msg, int flags)
-{
- /* TODO: Descriptor passing on AF_LOCAL sockets. */
-
- /* Disappointing but true: Even if WSARecvMsg is supported, it's only
- supported for datagram and raw sockets. */
- if (!wincap.has_recvmsg () || get_socket_type () == SOCK_STREAM
- || get_addr_family () == AF_LOCAL)
- {
- msg->msg_controllen = 0;
- if (!CYGWIN_VERSION_CHECK_FOR_USING_ANCIENT_MSGHDR)
- msg->msg_flags = 0;
- }
-
- WSABUF wsabuf[msg->msg_iovlen];
- WSABUF *wsaptr = wsabuf + msg->msg_iovlen;
- const struct iovec *iovptr = msg->msg_iov + msg->msg_iovlen;
- while (--wsaptr >= wsabuf)
- {
- wsaptr->len = (--iovptr)->iov_len;
- wsaptr->buf = (char *) iovptr->iov_base;
- }
- WSAMSG wsamsg = { (struct sockaddr *) msg->msg_name, msg->msg_namelen,
- wsabuf, msg->msg_iovlen,
- { msg->msg_controllen, (char *) msg->msg_control },
- flags };
- ssize_t ret = recv_internal (&wsamsg);
- if (ret >= 0)
- {
- msg->msg_namelen = wsamsg.namelen;
- msg->msg_controllen = wsamsg.Control.len;
- if (!CYGWIN_VERSION_CHECK_FOR_USING_ANCIENT_MSGHDR)
- msg->msg_flags = wsamsg.dwFlags;
- }
- return ret;
-}
-
-int
-fhandler_socket::writev (const struct iovec *const iov, const int iovcnt,
- ssize_t tot)
-{
- struct msghdr msg =
- {
- msg_name: NULL,
- msg_namelen: 0,
- msg_iov: (struct iovec *) iov, // const_cast
- msg_iovlen: iovcnt,
- msg_control: NULL,
- msg_controllen: 0,
- msg_flags: 0
- };
-
- return sendmsg (&msg, 0);
-}
-
-inline ssize_t
-fhandler_socket::send_internal (struct _WSAMSG *wsamsg, int flags)
-{
- int res = 0;
- DWORD ret = 0, err = 0, sum = 0, off = 0;
- WSABUF buf;
- bool use_sendmsg = false;
- DWORD wait_flags = flags & MSG_DONTWAIT;
- bool nosignal = !(flags & MSG_NOSIGNAL);
-
- flags &= (MSG_OOB | MSG_DONTROUTE);
- if (wsamsg->Control.len > 0)
- use_sendmsg = true;
- for (DWORD i = 0; i < wsamsg->dwBufferCount;
- off >= wsamsg->lpBuffers[i].len && (++i, off = 0))
- {
- /* CV 2009-12-02: Don't split datagram messages. */
- /* FIXME: Look for a way to split a message into the least number of
- pieces to minimize the number of WsaSendTo calls. */
- if (get_socket_type () == SOCK_STREAM)
- {
- buf.buf = wsamsg->lpBuffers[i].buf + off;
- buf.len = wsamsg->lpBuffers[i].len - off;
- /* See net.cc:fdsock() and MSDN KB 823764 */
- if (buf.len >= (unsigned) wmem ())
- buf.len = (unsigned) wmem ();
- }
-
- do
- {
- if (use_sendmsg)
- res = WSASendMsg (get_socket (), wsamsg, flags, &ret, NULL, NULL);
- else if (get_socket_type () == SOCK_STREAM)
- res = WSASendTo (get_socket (), &buf, 1, &ret, flags,
- wsamsg->name, wsamsg->namelen, NULL, NULL);
- else
- res = WSASendTo (get_socket (), wsamsg->lpBuffers,
- wsamsg->dwBufferCount, &ret, flags,
- wsamsg->name, wsamsg->namelen, NULL, NULL);
- if (res && (err = WSAGetLastError ()) == WSAEWOULDBLOCK)
- {
- LOCK_EVENTS;
- wsock_events->events &= ~FD_WRITE;
- UNLOCK_EVENTS;
- }
- }
- while (res && err == WSAEWOULDBLOCK
- && !(res = wait_for_events (FD_WRITE | FD_CLOSE, wait_flags)));
-
- if (!res)
- {
- off += ret;
- sum += ret;
- if (get_socket_type () != SOCK_STREAM)
- break;
- }
- else if (is_nonblocking () || err != WSAEWOULDBLOCK)
- break;
- }
-
- if (sum)
- res = sum;
- else if (res == SOCKET_ERROR)
- {
- set_winsock_errno ();
-
- /* Special handling for EPIPE and SIGPIPE.
-
- EPIPE is generated if the local end has been shut down on a connection
- oriented socket. In this case the process will also receive a SIGPIPE
- unless MSG_NOSIGNAL is set. */
- if (get_errno () == ESHUTDOWN && get_socket_type () == SOCK_STREAM)
- {
- set_errno (EPIPE);
- if (!nosignal)
- raise (SIGPIPE);
- }
- }
-
- return res;
-}
-
-ssize_t
-fhandler_socket::sendto (const void *ptr, size_t len, int flags,
- const struct sockaddr *to, int tolen)
-{
- struct sockaddr_storage sst;
-
- if (to && !get_inet_addr (to, tolen, &sst, &tolen))
- return SOCKET_ERROR;
-
- WSABUF wsabuf = { len, (char *) ptr };
- WSAMSG wsamsg = { to ? (struct sockaddr *) &sst : NULL, tolen,
- &wsabuf, 1,
- { 0, NULL},
- 0 };
- return send_internal (&wsamsg, flags);
-}
-
-int
-fhandler_socket::sendmsg (const struct msghdr *msg, int flags)
-{
- /* TODO: Descriptor passing on AF_LOCAL sockets. */
-
- WSABUF wsabuf[msg->msg_iovlen];
- WSABUF *wsaptr = wsabuf;
- const struct iovec *iovptr = msg->msg_iov;
- for (int i = 0; i < msg->msg_iovlen; ++i)
- {
- wsaptr->len = iovptr->iov_len;
- (wsaptr++)->buf = (char *) (iovptr++)->iov_base;
- }
- WSAMSG wsamsg = { (struct sockaddr *) msg->msg_name, msg->msg_namelen,
- wsabuf, msg->msg_iovlen,
- /* Disappointing but true: Even if WSASendMsg is
- supported, it's only supported for datagram and
- raw sockets. */
- { !wincap.has_sendmsg ()
- || get_socket_type () == SOCK_STREAM
- || get_addr_family () == AF_LOCAL
- ? 0 : msg->msg_controllen, (char *) msg->msg_control },
- 0 };
- return send_internal (&wsamsg, flags);
-}
-
-int
-fhandler_socket::shutdown (int how)
-{
- int res = ::shutdown (get_socket (), how);
-
- if (res)
- set_winsock_errno ();
- else
- switch (how)
- {
- case SHUT_RD:
- saw_shutdown_read (true);
- break;
- case SHUT_WR:
- saw_shutdown_write (true);
- break;
- case SHUT_RDWR:
- saw_shutdown_read (true);
- saw_shutdown_write (true);
- break;
- }
- return res;
-}
-
-int
-fhandler_socket::close ()
-{
- int res = 0;
- /* TODO: CV - 2008-04-16. Lingering disabled. The original problem
- could be no longer reproduced on NT4, XP, 2K8. Any return of a
- spurious "Connection reset by peer" *could* be caused by disabling
- the linger code here... */
-#if 0
- /* HACK to allow a graceful shutdown even if shutdown() hasn't been
- called by the application. Note that this isn't the ultimate
- solution but it helps in many cases. */
- struct linger linger;
- linger.l_onoff = 1;
- linger.l_linger = 240; /* secs. default 2MSL value according to MSDN. */
- setsockopt (get_socket (), SOL_SOCKET, SO_LINGER,
- (const char *)&linger, sizeof linger);
-#endif
- release_events ();
- while ((res = closesocket (get_socket ())) != 0)
- {
- if (WSAGetLastError () != WSAEWOULDBLOCK)
- {
- set_winsock_errno ();
- res = -1;
- break;
- }
- if (WaitForSingleObject (signal_arrived, 10) == WAIT_OBJECT_0)
- {
- set_errno (EINTR);
- res = -1;
- break;
- }
- WSASetLastError (0);
- }
-
- debug_printf ("%d = fhandler_socket::close()", res);
- return res;
-}
-
-/* Definitions of old ifreq stuff used prior to Cygwin 1.7.0. */
-#define OLD_SIOCGIFFLAGS _IOW('s', 101, struct __old_ifreq)
-#define OLD_SIOCGIFADDR _IOW('s', 102, struct __old_ifreq)
-#define OLD_SIOCGIFBRDADDR _IOW('s', 103, struct __old_ifreq)
-#define OLD_SIOCGIFNETMASK _IOW('s', 104, struct __old_ifreq)
-#define OLD_SIOCGIFHWADDR _IOW('s', 105, struct __old_ifreq)
-#define OLD_SIOCGIFMETRIC _IOW('s', 106, struct __old_ifreq)
-#define OLD_SIOCGIFMTU _IOW('s', 107, struct __old_ifreq)
-#define OLD_SIOCGIFINDEX _IOW('s', 108, struct __old_ifreq)
-
-#define CONV_OLD_TO_NEW_SIO(old) (((old)&0xff00ffff)|(((long)sizeof(struct ifreq)&IOCPARM_MASK)<<16))
-
-struct __old_ifreq {
-#define __OLD_IFNAMSIZ 16
- union {
- char ifrn_name[__OLD_IFNAMSIZ]; /* if name, e.g. "en0" */
- } ifr_ifrn;
-
- union {
- struct sockaddr ifru_addr;
- struct sockaddr ifru_broadaddr;
- struct sockaddr ifru_netmask;
- struct sockaddr ifru_hwaddr;
- short ifru_flags;
- int ifru_metric;
- int ifru_mtu;
- int ifru_ifindex;
- } ifr_ifru;
-};
-
-int
-fhandler_socket::ioctl (unsigned int cmd, void *p)
-{
- extern int get_ifconf (struct ifconf *ifc, int what); /* net.cc */
- int res;
- struct ifconf ifc, *ifcp;
- struct ifreq *ifrp;
-
- switch (cmd)
- {
- case SIOCGIFCONF:
- ifcp = (struct ifconf *) p;
- if (!ifcp)
- {
- set_errno (EINVAL);
- return -1;
- }
- if (CYGWIN_VERSION_CHECK_FOR_OLD_IFREQ)
- {
- ifc.ifc_len = ifcp->ifc_len / sizeof (struct __old_ifreq)
- * sizeof (struct ifreq);
- ifc.ifc_buf = (caddr_t) alloca (ifc.ifc_len);
- }
- else
- {
- ifc.ifc_len = ifcp->ifc_len;
- ifc.ifc_buf = ifcp->ifc_buf;
- }
- res = get_ifconf (&ifc, cmd);
- if (res)
- debug_printf ("error in get_ifconf");
- if (CYGWIN_VERSION_CHECK_FOR_OLD_IFREQ)
- {
- struct __old_ifreq *ifr = (struct __old_ifreq *) ifcp->ifc_buf;
- for (ifrp = ifc.ifc_req;
- (caddr_t) ifrp < ifc.ifc_buf + ifc.ifc_len;
- ++ifrp, ++ifr)
- {
- memcpy (&ifr->ifr_ifrn, &ifrp->ifr_ifrn, sizeof ifr->ifr_ifrn);
- ifr->ifr_name[__OLD_IFNAMSIZ - 1] = '\0';
- memcpy (&ifr->ifr_ifru, &ifrp->ifr_ifru, sizeof ifr->ifr_ifru);
- }
- ifcp->ifc_len = ifc.ifc_len / sizeof (struct ifreq)
- * sizeof (struct __old_ifreq);
- }
- else
- ifcp->ifc_len = ifc.ifc_len;
- break;
- case OLD_SIOCGIFFLAGS:
- case OLD_SIOCGIFADDR:
- case OLD_SIOCGIFBRDADDR:
- case OLD_SIOCGIFNETMASK:
- case OLD_SIOCGIFHWADDR:
- case OLD_SIOCGIFMETRIC:
- case OLD_SIOCGIFMTU:
- case OLD_SIOCGIFINDEX:
- cmd = CONV_OLD_TO_NEW_SIO (cmd);
- /*FALLTHRU*/
- case SIOCGIFFLAGS:
- case SIOCGIFBRDADDR:
- case SIOCGIFNETMASK:
- case SIOCGIFADDR:
- case SIOCGIFHWADDR:
- case SIOCGIFMETRIC:
- case SIOCGIFMTU:
- case SIOCGIFINDEX:
- case SIOCGIFFRNDLYNAM:
- case SIOCGIFDSTADDR:
- {
- if (!p)
- {
- debug_printf ("ifr == NULL");
- set_errno (EINVAL);
- return -1;
- }
-
- if (cmd > SIOCGIFINDEX && CYGWIN_VERSION_CHECK_FOR_OLD_IFREQ)
- {
- debug_printf ("cmd not supported on this platform");
- set_errno (EINVAL);
- return -1;
- }
- ifc.ifc_len = 64 * sizeof (struct ifreq);
- ifc.ifc_buf = (caddr_t) alloca (ifc.ifc_len);
- if (cmd == SIOCGIFFRNDLYNAM)
- {
- struct ifreq_frndlyname *iff = (struct ifreq_frndlyname *)
- alloca (64 * sizeof (struct ifreq_frndlyname));
- for (int i = 0; i < 64; ++i)
- ifc.ifc_req[i].ifr_frndlyname = &iff[i];
- }
-
- res = get_ifconf (&ifc, cmd);
- if (res)
- {
- debug_printf ("error in get_ifconf");
- break;
- }
-
- if (CYGWIN_VERSION_CHECK_FOR_OLD_IFREQ)
- {
- struct __old_ifreq *ifr = (struct __old_ifreq *) p;
- debug_printf (" name: %s", ifr->ifr_name);
- for (ifrp = ifc.ifc_req;
- (caddr_t) ifrp < ifc.ifc_buf + ifc.ifc_len;
- ++ifrp)
- {
- debug_printf ("testname: %s", ifrp->ifr_name);
- if (! strcmp (ifrp->ifr_name, ifr->ifr_name))
- {
- memcpy (&ifr->ifr_ifru, &ifrp->ifr_ifru,
- sizeof ifr->ifr_ifru);
- break;
- }
- }
- }
- else
- {
- struct ifreq *ifr = (struct ifreq *) p;
- debug_printf (" name: %s", ifr->ifr_name);
- for (ifrp = ifc.ifc_req;
- (caddr_t) ifrp < ifc.ifc_buf + ifc.ifc_len;
- ++ifrp)
- {
- debug_printf ("testname: %s", ifrp->ifr_name);
- if (! strcmp (ifrp->ifr_name, ifr->ifr_name))
- {
- if (cmd == SIOCGIFFRNDLYNAM)
- /* The application has to care for the space. */
- memcpy (ifr->ifr_frndlyname, ifrp->ifr_frndlyname,
- sizeof (struct ifreq_frndlyname));
- else
- memcpy (&ifr->ifr_ifru, &ifrp->ifr_ifru,
- sizeof ifr->ifr_ifru);
- break;
- }
- }
- }
- if ((caddr_t) ifrp >= ifc.ifc_buf + ifc.ifc_len)
- {
- set_errno (EINVAL);
- return -1;
- }
- break;
- }
- case FIOASYNC:
- res = WSAAsyncSelect (get_socket (), winmsg, WM_ASYNCIO,
- *(int *) p ? ASYNC_MASK : 0);
- syscall_printf ("Async I/O on socket %s",
- *(int *) p ? "started" : "cancelled");
- async_io (*(int *) p != 0);
- /* If async_io is switched off, revert the event handling. */
- if (*(int *) p == 0)
- WSAEventSelect (get_socket (), wsock_evt, EVENT_MASK);
- break;
- case FIONREAD:
- res = ioctlsocket (get_socket (), FIONREAD, (unsigned long *) p);
- if (res == SOCKET_ERROR)
- set_winsock_errno ();
- break;
- default:
- /* Sockets are always non-blocking internally. So we just note the
- state here. */
- if (cmd == FIONBIO)
- {
- syscall_printf ("socket is now %sblocking",
- *(int *) p ? "non" : "");
- set_nonblocking (*(int *) p);
- res = 0;
- }
- else
- res = ioctlsocket (get_socket (), cmd, (unsigned long *) p);
- break;
- }
- syscall_printf ("%d = ioctl_socket (%x, %x)", res, cmd, p);
- return res;
-}
-
-int
-fhandler_socket::fcntl (int cmd, void *arg)
-{
- int res = 0;
- int request, current;
-
- switch (cmd)
- {
- case F_SETOWN:
- {
- pid_t pid = (pid_t) arg;
- LOCK_EVENTS;
- wsock_events->owner = pid;
- UNLOCK_EVENTS;
- debug_printf ("owner set to %d", pid);
- }
- break;
- case F_GETOWN:
- res = wsock_events->owner;
- break;
- case F_SETFL:
- {
- /* Carefully test for the O_NONBLOCK or deprecated OLD_O_NDELAY flag.
- Set only the flag that has been passed in. If both are set, just
- record O_NONBLOCK. */
- int new_flags = (int) arg & O_NONBLOCK_MASK;
- if ((new_flags & OLD_O_NDELAY) && (new_flags & O_NONBLOCK))
- new_flags = O_NONBLOCK;
- current = get_flags () & O_NONBLOCK_MASK;
- request = new_flags ? 1 : 0;
- if (!!current != !!new_flags && (res = ioctl (FIONBIO, &request)))
- break;
- set_flags ((get_flags () & ~O_NONBLOCK_MASK) | new_flags);
- break;
- }
- default:
- res = fhandler_base::fcntl (cmd, arg);
- break;
- }
- return res;
-}
-
-void
-fhandler_socket::set_close_on_exec (bool val)
-{
- set_no_inheritance (wsock_mtx, val);
- set_no_inheritance (wsock_evt, val);
- if (need_fixup_before ())
- {
- close_on_exec (val);
- debug_printf ("set close_on_exec for %s to %d", get_name (), val);
- }
- else
- fhandler_base::set_close_on_exec (val);
-}
-
-void
-fhandler_socket::set_sun_path (const char *path)
-{
- sun_path = path ? cstrdup (path) : NULL;
-}
-
-void
-fhandler_socket::set_peer_sun_path (const char *path)
-{
- peer_sun_path = path ? cstrdup (path) : NULL;
-}
-
-int
-fhandler_socket::getpeereid (pid_t *pid, __uid32_t *euid, __gid32_t *egid)
-{
- if (get_addr_family () != AF_LOCAL || get_socket_type () != SOCK_STREAM)
- {
- set_errno (EINVAL);
- return -1;
- }
- if (connect_state () != connected)
- {
- set_errno (ENOTCONN);
- return -1;
- }
- if (sec_peer_pid == (pid_t) 0)
- {
- set_errno (ENOTCONN); /* Usually when calling getpeereid on
- accepting (instead of accepted) socket. */
- return -1;
- }
-
- myfault efault;
- if (efault.faulted (EFAULT))
- return -1;
- if (pid)
- *pid = sec_peer_pid;
- if (euid)
- *euid = sec_peer_uid;
- if (egid)
- *egid = sec_peer_gid;
- return 0;
-}