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* fhandler.h (class fhandler_dev_raw): Delete current_position and

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eof_detected status flag.  Delete is_eom and is_eof methods.
	Move drive_size, bytes_per_sector, eom_detected status flag, as well
	as the methods read_file, write_file, raw_read and raw_write to ...
	(class fhandler_dev_floppy): ... here. Remove is_eom and is_eof
	methods.  Add dup method.
	* fhandler_floppy.cc (IS_EOM): New macro.
	(fhandler_dev_floppy::is_eom): Remove.
	(fhandler_dev_floppy::is_eof): Remove.
	(fhandler_dev_floppy::fhandler_dev_floppy): Initialize status flags.
	(fhandler_dev_floppy::get_drive_info): Only call EX functions on
	systems supporting them and stop suffering strange delays.
	(fhandler_dev_floppy::read_file): Move here, drop setting
	current_position.
	(fhandler_dev_floppy::write_file): Move here, drop setting
	current_position.
	(fhandler_dev_floppy::open): Rearrange comment.
	(fhandler_dev_floppy::dup): New method.
	(fhandler_dev_floppy::get_current_position): New inline method.  Use
	instead of former current_position were appropriate.
	(fhandler_dev_floppy::raw_read): Move here.  Drop EOF handling.
	(fhandler_dev_floppy::raw_write): Move here.  Drop EOF handling.
	(fhandler_dev_floppy::lseek): Remove useless conditions.  Convert
	sector_aligned_offset to LARGE_INTEGER to improve SetFilePointer call.
	(fhandler_dev_floppy::ioctl): Move blocksize check in RDSETBLK case
	to here.
	* fhandler_raw.cc (fhandler_dev_raw::is_eom): Remove.
	(fhandler_dev_raw::is_eof): Remove.
	(fhandler_dev_raw::write_file): Remove.
	(fhandler_dev_raw::read_file): Remove.
	(fhandler_dev_raw::raw_read): Remove.
	(fhandler_dev_raw::raw_write): Remove.
	(fhandler_dev_raw::dup): Drop copying removed members.
	(fhandler_dev_raw::ioctl): Drop blocksize testing.
	* wincap.h: Implement has_disk_ex_ioctls throughout.
	* wincap.cc: Ditto.
	(wincap_vista): Preliminary wincaps for Windows Vista/Longhorn.
	(wincapc::init): Add Vista/Longhorn handling.
This commit is contained in:
Corinna Vinschen
2005-09-28 19:02:53 +00:00
parent 280fdd0b67
commit 1204c515fe
26 changed files with 500 additions and 172 deletions
Download Patch File Download Diff File Expand all files Collapse all files

113
winsup/cygwin/fhandler_socket.cc
View File

@ -27,6 +27,7 @@
#include "perprocess.h"
#include "path.h"
#include "fhandler.h"
#include "pinfo.h"
#include "dtable.h"
#include "cygheap.h"
#include "sigproc.h"
@ -454,7 +455,7 @@ fhandler_socket::fixup_after_exec ()
}
int
fhandler_socket::dup (fhandler_base *child)
fhandler_socket::dup (fhandler_base *child, HANDLE from_proc)
{
HANDLE nh;
@ -477,7 +478,7 @@ fhandler_socket::dup (fhandler_base *child)
}
fhs->connect_state (connect_state ());
if (winsock2_active)
if (winsock2_active && from_proc == hMainProc)
{
/* Since WSADuplicateSocket() fails on NT systems when the process
is currently impersonating a non-privileged account, we revert
@ -506,7 +507,7 @@ fhandler_socket::dup (fhandler_base *child)
having winsock called from fhandler_base and it creates only
inheritable sockets which is wrong for winsock2. */
if (!DuplicateHandle (hMainProc, get_io_handle (), hMainProc, &nh, 0,
if (!DuplicateHandle (from_proc, get_io_handle (), hMainProc, &nh, 0,
!winsock2_active, DUPLICATE_SAME_ACCESS))
{
system_printf ("!DuplicateHandle(%x) failed, %E", get_io_handle ());
@ -992,8 +993,9 @@ fhandler_socket::readv (const struct iovec *const iov, const int iovcnt,
msg_namelen: 0,
msg_iov: (struct iovec *) iov, // const_cast
msg_iovlen: iovcnt,
msg_accrights: NULL,
msg_accrightslen: 0
msg_control: NULL,
msg_controllen: 0,
msg_flags: 0
};
return recvmsg (&msg, 0, tot);
@ -1064,7 +1066,10 @@ fhandler_socket::recvmsg (struct msghdr *msg, int flags, ssize_t tot)
go ahead recv'ing the normal data blocks. Otherwise start
special handling for descriptor passing. */
/*TODO*/
msg->msg_accrightslen = 0;
if (CYGWIN_VERSION_CHECK_FOR_USING_ANCIENT_MSGHDR)
((struct OLD_msghdr *) msg)->msg_accrightslen = 0;
else
msg->msg_controllen = 0;
}
struct iovec *const iov = msg->msg_iov;
@ -1186,8 +1191,9 @@ fhandler_socket::writev (const struct iovec *const iov, const int iovcnt,
msg_namelen: 0,
msg_iov: (struct iovec *) iov, // const_cast
msg_iovlen: iovcnt,
msg_accrights: NULL,
msg_accrightslen: 0
msg_control: NULL,
msg_controllen: 0,
msg_flags: 0
};
return sendmsg (&msg, 0, tot);
@ -1263,13 +1269,64 @@ fhandler_socket::sendto (const void *ptr, size_t len, int flags,
int
fhandler_socket::sendmsg (const struct msghdr *msg, int flags, ssize_t tot)
{
if (get_addr_family () == AF_LOCAL)
struct cmsghdr *cmsg;
bool descriptors_inflight = false;
if (get_addr_family () == AF_LOCAL
&& get_socket_type () == SOCK_STREAM
&& msg->msg_controllen > 0) /* Works for ancient msghdr, too. */
{
/* For AF_LOCAL/AF_UNIX sockets, if descriptors are given, start
/* For AF_LOCAL/SOCK_STREAM sockets, if descriptors are given, start
the special handling for descriptor passing. Otherwise just
transmit an empty string to tell the receiver that no
descriptor passing is done. */
/*TODO*/
/* NOTE: SOCK_DGRAMs are usually allowed, but we can't support them
unless credential passing works for SOCK_DGRAM sockets as well.
OTOH, since DGRAMs can be easily discarded, they are not reliable
and seldomly used anyway. */
struct msghdr lmsg;
union {
struct cmsghdr cm;
char control[CMSG_SPACE (sizeof (int))];
} control_un;
if (CYGWIN_VERSION_CHECK_FOR_USING_ANCIENT_MSGHDR)
{
memcpy (&lmsg, msg, sizeof *msg);
lmsg.msg_control = (void *) control_un.control;
lmsg.msg_controllen = sizeof control_un.control;
lmsg.msg_flags = 0;
cmsg = CMSG_FIRSTHDR (&lmsg);
cmsg->cmsg_len = CMSG_LEN (sizeof (int));
cmsg->cmsg_level = SOL_SOCKET;
cmsg->cmsg_type = SCM_RIGHTS;
*((int *) CMSG_DATA (cmsg)) =
*(int *) ((OLD_msghdr *) msg)->msg_accrights;
msg = &lmsg;
}
pinfo p (sec_peer_pid);
if (!p)
{
set_errno (ENOTCONN);
return SOCKET_ERROR;
}
for (cmsg = CMSG_FIRSTHDR (msg); cmsg; cmsg = CMSG_NXTHDR (msg, cmsg))
{
if (cmsg->cmsg_level != SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS)
{
set_errno (ENOTSUP);
return SOCKET_ERROR;
}
int *fds = (int *) CMSG_DATA (cmsg);
int cnt = (cmsg->cmsg_len - CMSG_ALIGN (sizeof (struct cmsghdr)))
/ sizeof (int);
if (!p->send_descriptors (cnt, fds))
return SOCKET_ERROR;
descriptors_inflight = true;
}
}
struct iovec *const iov = msg->msg_iov;
@ -1369,22 +1426,34 @@ fhandler_socket::sendmsg (const struct msghdr *msg, int flags, ssize_t tot)
}
if (res == SOCKET_ERROR)
set_winsock_errno ();
{
set_winsock_errno ();
}
else
res = ret;
}
/* 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 (res == SOCKET_ERROR && get_errno () == ESHUTDOWN
&& get_socket_type () == SOCK_STREAM)
if (res == SOCKET_ERROR)
{
set_errno (EPIPE);
if (! (flags & MSG_NOSIGNAL))
raise (SIGPIPE);
/* If sendmsg fails, destroy all inflight descriptors. */
if (descriptors_inflight && WSAGetLastError () != WSAEWOULDBLOCK)
{
pinfo p (sec_peer_pid);
if (p)
p->destroy_inflight_descriptors ();
}
/* 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 (! (flags & MSG_NOSIGNAL))
raise (SIGPIPE);
}
}
return res;