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/* |
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* Copyright (c) 1998-2001, Robert O'Callahan |
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* (C) 2004- TeraTerm Project |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR |
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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/* |
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This code is copyright (C) 1998-1999 Robert O'Callahan. |
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See LICENSE.TXT for the license. |
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*/ |
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|
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#include "ttxssh.h" |
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#include "codeconv.h" |
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|
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void UTIL_init_sock_write_buf(UTILSockWriteBuf *buf) |
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{ |
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buf_create(&buf->bufdata, &buf->buflen); |
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buf->datastart = 0; |
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buf->datalen = 0; |
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} |
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|
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static int send_until_block(PTInstVar pvar, SOCKET s, |
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const char *data, int len) |
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{ |
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int total_sent = 0; |
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|
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while (len > 0) { |
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int sent_amount = (pvar->Psend) (s, data, len, 0); |
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|
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if (sent_amount < 0) { |
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if (WSAGetLastError() == WSAEWOULDBLOCK) { |
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return total_sent; |
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} else { |
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return sent_amount; |
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} |
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} else { |
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total_sent += sent_amount; |
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data += sent_amount; |
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len -= sent_amount; |
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} |
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} |
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|
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return total_sent; |
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} |
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|
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/* Tera Term��������������PC���� X �T�[�o�v���O�������������A�f�[�^�������B |
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* ���x�����������������A�����O�o�b�t�@���i�[���A�x���z�������B |
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* |
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* �����t���[�����L�������B |
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* (1) �������f�[�^�������B���������A�����O�o�b�t�@�����B |
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* (2) non-blocking�����M���������B�S���M��������return�B |
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* (3) ���M�������������f�[�^�������O�o�b�t�@���i�[���Areturn�B |
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* (4) �����f�[�^�������B |
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* (5) �����O�o�b�t�@���i�[���Areturn�B |
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* (6) �����f�[�^�������B |
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* (7) �����O�o�b�t�@���t�������������A�o�b�t�@���c���������f�[�^�� blocking �����M���������B |
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* ���M���s�������A�G���[return�B |
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* (8) ���[�U�f�[�^(data/len)�����M�� blocking �����M���������B |
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* ���M���s�������A�G���[return�B |
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* (9) ���M���������������[�U�f�[�^�������O�o�b�t�@���i�[���Areturn�B |
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* (10) �����O�o�b�t�@���c���������f�[�^�� non-blocking�����M���������B |
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* |
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* pvar: ���L���\�[�X |
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* buf: �����O�o�b�t�@ |
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* blocking_write: �����^���p�P�b�g���M���� |
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* socket: �������^���\�P�b�g�n���h�� |
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* data: �f�[�^ |
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* len: �f�[�^�� |
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* |
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* return TRUE: ���M���� |
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* FALSE: ���M�G���[ |
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*/ |
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BOOL UTIL_sock_buffered_write(PTInstVar pvar, UTILSockWriteBuf *buf, |
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UTILBlockingWriteCallback blocking_write, |
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SOCKET socket, const char *data, |
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int len) |
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{ |
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int curlen; |
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int desiredlen; |
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int space_required; |
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int amount_to_write_from_buffer; |
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BOOL did_block = FALSE; |
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int first_copy_start; |
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int first_copy_amount; |
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|
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// ���������o�������A�����������L if ���������B |
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/* Fast path case: buffer is empty, try nonblocking write */ |
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if (buf->datalen == 0) { |
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#if 1 |
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// ������ non-blocking ���p�P�b�g���M�����B���x���� WSAEWOULDBLOCK �G���[�����������A |
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// �������u���M�����f�[�^���v�������B |
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// ���������AX �T�[�o�v���O����������"xterm"���N���������������Axterm���[���������� |
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// �������\���������������������A�[�����E�B���h�E���h���b�O�������A������ 0 �������������B |
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int sent_amount = send_until_block(pvar, socket, data, len); |
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|
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if (sent_amount < 0) { |
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return FALSE; |
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} |
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data += sent_amount; |
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len -= sent_amount; |
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#else |
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// �m���u���b�L���O���[�h�������������������A���~���������������A�o�O�����������A |
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// �����������������B�������A�������u���b�L���O���[�h���g���A�m�������M�����������B |
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// �|�[�g�]��(local-to-remote)���������A�������p�P�b�g�����M���������������������B |
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// (2007.11.29 yutaka) |
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// �I���W�i���R�[�h���o�O���������v�����������ASSH�x�����M�����������������������A |
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// ���������{�����������A�I���W�i���R�[�h���������������������l�����B |
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// �{�����m���u���b�L���O�������������������A���������u���b�L���O�����������������A |
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// Tera Term���u���������v�AXming���uCPU�X�g�[���v�������s���v�c���������o�������� |
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// �������������B���������A�{�����R�[�h���������������f�����B |
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// (2012.10.14 yutaka) |
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if (!blocking_write(pvar, socket, data, len)) { |
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return FALSE; |
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} else { |
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len = 0; |
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} |
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#endif |
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} |
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|
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// ���������o������ non-blocking ���M���A�������������������A�����������������B |
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if (len == 0) { |
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return TRUE; |
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} |
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|
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// �����O�o�b�t�@(buf)���c�����������f�[�^���A�V�K���M�f�[�^��������(desiredlen)�A |
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// �������o�b�t�@��(curlen)�������������v�Z�����B |
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// |
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// (1)�f�[�^���������i�[�����������P�[�X |
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// |
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// <----- buflen -------------> |
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// buf->bufdata -> +--------------------------+ |
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// |XXXXXXX | |
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// +--------------------------+ |
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// <------> |
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// buf->datalen |
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// ^ |
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// | |
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// buf->datastart |
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// |
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// |
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// (2)�f�[�^�����[���i�[�����������P�[�X |
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// |
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// <----- buflen -------------> |
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// buf->bufdata -> +--------------------------+ |
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// |XXXX XXXX| |
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// +--------------------------+ |
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// <---> <--> |
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// (a) (b) |
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// (a)+(b) = buf->datalen |
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// ^ |
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// | |
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// buf->datastart |
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// |
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/* We blocked or the buffer has data in it. We need to put this data |
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into the buffer. |
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First, expand buffer as much as possible and necessary. */ |
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curlen = buf->buflen; |
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desiredlen = |
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min(pvar->session_settings.WriteBufferSize, buf->datalen + len); |
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|
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if (curlen < desiredlen) { |
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int wrap_amount = buf->datastart + buf->datalen - curlen; |
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int newlen = |
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min(pvar->session_settings.WriteBufferSize, 2 * desiredlen); |
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|
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buf->bufdata = realloc(buf->bufdata, newlen); |
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buf->buflen = newlen; |
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|
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if (wrap_amount > 0) { |
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int wrap_to_copy = min(wrap_amount, newlen - curlen); |
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|
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memmove(buf->bufdata + curlen, buf->bufdata, wrap_to_copy); |
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memmove(buf->bufdata, buf->bufdata + wrap_to_copy, |
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wrap_amount - wrap_to_copy); |
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} |
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} |
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|
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/* 1) Write data from buffer |
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2) Write data from user |
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3) Copy remaining user data into buffer |
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*/ |
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// �o�b�t�@�����������������A�V�����f�[�^(data)�������������� space_required �����������B |
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// ���������Aspace_required���u���������v���\���B |
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// |
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// space_required |
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// <----- buflen -------------><--------> |
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// buf->bufdata -> +--------------------------+ |
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// |XXXXXXXXXXXXXXXXX | |
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// +--------------------------+ |
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// <----------------><------------------> |
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// buf->datalen len |
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// ^ |
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// | |
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// buf->datastart |
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space_required = max(0, buf->datalen + len - buf->buflen); |
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amount_to_write_from_buffer = min(buf->datalen, space_required); |
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|
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if (amount_to_write_from_buffer > 0) { |
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int first_part = |
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min(amount_to_write_from_buffer, buf->buflen - buf->datastart); |
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|
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did_block = TRUE; |
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if (!blocking_write |
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(pvar, socket, buf->bufdata + buf->datastart, first_part)) { |
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return FALSE; |
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} |
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if (first_part < amount_to_write_from_buffer) { |
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if (!blocking_write |
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(pvar, socket, buf->bufdata, |
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amount_to_write_from_buffer - first_part)) { |
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return FALSE; |
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} |
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} |
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|
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buf->datalen -= amount_to_write_from_buffer; |
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if (buf->datalen == 0) { |
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buf->datastart = 0; |
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} else { |
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buf->datastart = |
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(buf->datastart + |
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amount_to_write_from_buffer) % buf->buflen; |
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} |
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space_required -= amount_to_write_from_buffer; |
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} |
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|
| 249 |
if (space_required > 0) { |
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did_block = TRUE; |
| 251 |
if (!blocking_write(pvar, socket, data, space_required)) { |
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return FALSE; |
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} |
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data += space_required; |
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len -= space_required; |
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} |
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|
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first_copy_start = (buf->datastart + buf->datalen) % buf->buflen; |
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first_copy_amount = min(len, buf->buflen - first_copy_start); |
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memcpy(buf->bufdata + first_copy_start, data, first_copy_amount); |
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if (first_copy_amount < len) { |
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memcpy(buf->bufdata, data + first_copy_amount, |
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len - first_copy_amount); |
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} |
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buf->datalen += len; |
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|
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if (did_block) { |
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return UTIL_sock_write_more(pvar, buf, socket); |
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} else { |
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return TRUE; |
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} |
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} |
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|
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BOOL UTIL_sock_write_more(PTInstVar pvar, UTILSockWriteBuf *buf, |
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SOCKET socket) |
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{ |
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int first_amount = min(buf->buflen - buf->datastart, buf->datalen); |
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int sent = |
| 279 |
send_until_block(pvar, socket, buf->bufdata + buf->datastart, |
| 280 |
first_amount); |
| 281 |
|
| 282 |
if (sent < 0) { |
| 283 |
return FALSE; |
| 284 |
} else { |
| 285 |
if (sent == first_amount && first_amount < buf->datalen) { |
| 286 |
int sentmore = |
| 287 |
send_until_block(pvar, socket, buf->bufdata, |
| 288 |
buf->datalen - first_amount); |
| 289 |
|
| 290 |
if (sentmore < 0) { |
| 291 |
return FALSE; |
| 292 |
} |
| 293 |
sent += sentmore; |
| 294 |
} |
| 295 |
|
| 296 |
buf->datalen -= sent; |
| 297 |
if (buf->datalen == 0) { |
| 298 |
buf->datastart = 0; |
| 299 |
} else { |
| 300 |
buf->datastart = (buf->datastart + sent) % buf->buflen; |
| 301 |
} |
| 302 |
} |
| 303 |
|
| 304 |
return TRUE; |
| 305 |
} |
| 306 |
|
| 307 |
void UTIL_destroy_sock_write_buf(UTILSockWriteBuf *buf) |
| 308 |
{ |
| 309 |
SecureZeroMemory(buf->bufdata, buf->buflen); |
| 310 |
buf_destroy(&buf->bufdata, &buf->buflen); |
| 311 |
} |
| 312 |
|
| 313 |
BOOL UTIL_is_sock_deeply_buffered(UTILSockWriteBuf *buf) |
| 314 |
{ |
| 315 |
return buf->buflen / 2 < buf->datalen; |
| 316 |
} |
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|
| 318 |
void UTIL_get_lang_msg(const char *key, PTInstVar pvar, const char *def) |
| 319 |
{ |
| 320 |
wchar_t *defW = ToWcharA(def); |
| 321 |
wchar_t *strW; |
| 322 |
GetI18nStrWW("TTSSH", key, defW, pvar->ts->UILanguageFileW, &strW); |
| 323 |
WideCharToACP_t(strW, pvar->UIMsg, sizeof(pvar->UIMsg)); |
| 324 |
free(strW); |
| 325 |
free(defW); |
| 326 |
} |
| 327 |
|
| 328 |
void UTIL_get_lang_msgU8(const char *key, PTInstVar pvar, const char *def) |
| 329 |
{ |
| 330 |
const wchar_t *UILanguageFileW = pvar->ts->UILanguageFileW; |
| 331 |
char *strU8; |
| 332 |
GetI18nStrU8W("TTSSH", key, def, UILanguageFileW, &strU8); |
| 333 |
strcpy_s(pvar->UIMsg, MAX_UIMSG, strU8); |
| 334 |
free(strU8); |
| 335 |
} |
| 336 |
|
| 337 |
void UTIL_get_lang_msgW(const char *key, PTInstVar pvar, const wchar_t *def, wchar_t *UIMsg) |
| 338 |
{ |
| 339 |
const wchar_t *UILanguageFileW = pvar->ts->UILanguageFileW; |
| 340 |
wchar_t *strW; |
| 341 |
GetI18nStrWW("TTSSH", key, def, UILanguageFileW, &strW); |
| 342 |
wcscpy_s(UIMsg, MAX_UIMSG, strW); |
| 343 |
free(strW); |
| 344 |
} |
| 345 |
|
| 346 |
/* |
| 347 |
* �����t�H���g������ |
| 348 |
* @retval �t�H���g�n���h�� |
| 349 |
* @retval NULL(�G���[) |
| 350 |
*/ |
| 351 |
HFONT UTIL_get_lang_fixedfont(HWND hWnd, const wchar_t *UILanguageFile) |
| 352 |
{ |
| 353 |
HFONT hFont; |
| 354 |
LOGFONTW logfont; |
| 355 |
int dpi = GetMonitorDpiFromWindow(hWnd); |
| 356 |
BOOL result = GetI18nLogfontW(L"TTSSH", L"DLG_ABOUT_FONT", &logfont, |
| 357 |
dpi, UILanguageFile); |
| 358 |
if (result == FALSE) { |
| 359 |
// ���������������������������t�H���g���w�������B |
| 360 |
// �G�f�B�b�g�R���g���[�����_�C�A���O�������t�H���g������������ |
| 361 |
// �����t�H���g�������������B |
| 362 |
|
| 363 |
// �E�B���h�E(�_�C�A���O)���t�H���g�������A�t�H���g�����Q������ |
| 364 |
HFONT hFontDlg; |
| 365 |
LOGFONTW logfontDlg; |
| 366 |
hFontDlg = (HFONT)SendMessage(hWnd, WM_GETFONT, (WPARAM)0, (LPARAM)0); |
| 367 |
GetObject(hFontDlg, sizeof(logfontDlg), &logfontDlg); |
| 368 |
|
| 369 |
memset(&logfont, 0, sizeof(logfont)); |
| 370 |
wcsncpy_s(logfont.lfFaceName, _countof(logfont.lfFaceName), L"Courier New", _TRUNCATE); |
| 371 |
logfont.lfCharSet = ANSI_CHARSET; // = 0 |
| 372 |
logfont.lfHeight = logfontDlg.lfHeight; |
| 373 |
logfont.lfWidth = 0; |
| 374 |
} |
| 375 |
hFont = CreateFontIndirectW(&logfont); // �G���[�� NULL |
| 376 |
#if 1 |
| 377 |
if (hFont == NULL) { |
| 378 |
// �t�H���g���������������������� stock object ���g�p���� |
| 379 |
// DeleteObject() ������ok������ |
| 380 |
// It is not necessary (but it is not harmful) to |
| 381 |
// delete stock objects by calling DeleteObject. |
| 382 |
hFont = GetStockObject(ANSI_FIXED_FONT); |
| 383 |
} |
| 384 |
#endif |
| 385 |
return hFont; |
| 386 |
} |