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-rw-r--r--rdp/rdp_tcp.c260
1 files changed, 135 insertions, 125 deletions
diff --git a/rdp/rdp_tcp.c b/rdp/rdp_tcp.c
index 0f053ff6..f3c990ad 100644
--- a/rdp/rdp_tcp.c
+++ b/rdp/rdp_tcp.c
@@ -1,178 +1,188 @@
-/*
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- xrdp: A Remote Desktop Protocol server.
- Copyright (C) Jay Sorg 2005-2010
-
- librdp tcp layer
-
-*/
+/**
+ * xrdp: A Remote Desktop Protocol server.
+ *
+ * Copyright (C) Jay Sorg 2004-2012
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * librdp tcp layer
+ */
#include "rdp.h"
/*****************************************************************************/
-struct rdp_tcp* APP_CC
-rdp_tcp_create(struct rdp_iso* owner)
+struct rdp_tcp *APP_CC
+rdp_tcp_create(struct rdp_iso *owner)
{
- struct rdp_tcp* self;
+ struct rdp_tcp *self;
- self = (struct rdp_tcp*)g_malloc(sizeof(struct rdp_tcp), 1);
- self->iso_layer = owner;
- return self;
+ self = (struct rdp_tcp *)g_malloc(sizeof(struct rdp_tcp), 1);
+ self->iso_layer = owner;
+ return self;
}
/*****************************************************************************/
void APP_CC
-rdp_tcp_delete(struct rdp_tcp* self)
+rdp_tcp_delete(struct rdp_tcp *self)
{
- g_free(self);
+ g_free(self);
}
/*****************************************************************************/
/* get out stream ready for data */
/* returns error */
int APP_CC
-rdp_tcp_init(struct rdp_tcp* self, struct stream* s)
+rdp_tcp_init(struct rdp_tcp *self, struct stream *s)
{
- init_stream(s, 8192);
- return 0;
+ init_stream(s, 8192);
+ return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
-rdp_tcp_recv(struct rdp_tcp* self, struct stream* s, int len)
+rdp_tcp_recv(struct rdp_tcp *self, struct stream *s, int len)
{
- int rcvd;
-
- DEBUG((" in rdp_tcp_recv gota get %d bytes on sck %d",
- len, self->sck));
- if (self->sck_closed)
- {
- DEBUG((" out rdp_tcp_recv error sck closed"));
- return 1;
- }
- init_stream(s, len);
- while (len > 0)
- {
- rcvd = g_tcp_recv(self->sck, s->end, len, 0);
- if (rcvd == -1)
+ int rcvd;
+
+ DEBUG((" in rdp_tcp_recv gota get %d bytes on sck %d",
+ len, self->sck));
+
+ if (self->sck_closed)
{
- if (g_tcp_last_error_would_block(self->sck))
- {
- g_tcp_can_recv(self->sck, 10);
- }
- else
- {
- self->sck_closed = 1;
- DEBUG((" out rdp_tcp_recv error unknown"));
+ DEBUG((" out rdp_tcp_recv error sck closed"));
return 1;
- }
- }
- else if (rcvd == 0)
- {
- self->sck_closed = 1;
- DEBUG((" out rdp_tcp_recv error connection dropped"));
- return 1;
}
- else
+
+ init_stream(s, len);
+
+ while (len > 0)
{
- s->end += rcvd;
- len -= rcvd;
+ rcvd = g_tcp_recv(self->sck, s->end, len, 0);
+
+ if (rcvd == -1)
+ {
+ if (g_tcp_last_error_would_block(self->sck))
+ {
+ g_tcp_can_recv(self->sck, 10);
+ }
+ else
+ {
+ self->sck_closed = 1;
+ DEBUG((" out rdp_tcp_recv error unknown"));
+ return 1;
+ }
+ }
+ else if (rcvd == 0)
+ {
+ self->sck_closed = 1;
+ DEBUG((" out rdp_tcp_recv error connection dropped"));
+ return 1;
+ }
+ else
+ {
+ s->end += rcvd;
+ len -= rcvd;
+ }
}
- }
- return 0;
+
+ return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
-rdp_tcp_send(struct rdp_tcp* self, struct stream* s)
+rdp_tcp_send(struct rdp_tcp *self, struct stream *s)
{
- int len;
- int total;
- int sent;
-
- if (self->sck_closed)
- {
- DEBUG((" out rdp_tcp_send error sck closed"));
- return 1;
- }
- len = s->end - s->data;
- DEBUG((" in rdp_tcp_send gota send %d bytes on sck %d", len,
- self->sck));
- total = 0;
- while (total < len)
- {
- sent = g_tcp_send(self->sck, s->data + total, len - total, 0);
- if (sent == -1)
+ int len;
+ int total;
+ int sent;
+
+ if (self->sck_closed)
{
- if (g_tcp_last_error_would_block(self->sck))
- {
- g_tcp_can_send(self->sck, 10);
- }
- else
- {
- self->sck_closed = 1;
- DEBUG((" out rdp_tcp_send error unknown"));
+ DEBUG((" out rdp_tcp_send error sck closed"));
return 1;
- }
- }
- else if (sent == 0)
- {
- self->sck_closed = 1;
- DEBUG((" out rdp_tcp_send error connection dropped"));
- return 1;
}
- else
+
+ len = s->end - s->data;
+ DEBUG((" in rdp_tcp_send gota send %d bytes on sck %d", len,
+ self->sck));
+ total = 0;
+
+ while (total < len)
{
- total = total + sent;
+ sent = g_tcp_send(self->sck, s->data + total, len - total, 0);
+
+ if (sent == -1)
+ {
+ if (g_tcp_last_error_would_block(self->sck))
+ {
+ g_tcp_can_send(self->sck, 10);
+ }
+ else
+ {
+ self->sck_closed = 1;
+ DEBUG((" out rdp_tcp_send error unknown"));
+ return 1;
+ }
+ }
+ else if (sent == 0)
+ {
+ self->sck_closed = 1;
+ DEBUG((" out rdp_tcp_send error connection dropped"));
+ return 1;
+ }
+ else
+ {
+ total = total + sent;
+ }
}
- }
- return 0;
+
+ return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
-rdp_tcp_connect(struct rdp_tcp* self, char* ip, char* port)
+rdp_tcp_connect(struct rdp_tcp *self, char *ip, char *port)
{
- DEBUG((" in rdp_tcp_connect ip %s port %s", ip, port));
- self->sck = g_tcp_socket();
- if (g_tcp_connect(self->sck, ip, port) == 0)
- {
- g_tcp_set_non_blocking(self->sck);
- }
- else
- {
- DEBUG((" out rdp_tcp_connect error g_tcp_connect failed"));
- return 1;
- }
- DEBUG((" out rdp_tcp_connect"));
- return 0;
+ DEBUG((" in rdp_tcp_connect ip %s port %s", ip, port));
+ self->sck = g_tcp_socket();
+
+ if (g_tcp_connect(self->sck, ip, port) == 0)
+ {
+ g_tcp_set_non_blocking(self->sck);
+ }
+ else
+ {
+ DEBUG((" out rdp_tcp_connect error g_tcp_connect failed"));
+ return 1;
+ }
+
+ DEBUG((" out rdp_tcp_connect"));
+ return 0;
}
/*****************************************************************************/
/* returns error */
int APP_CC
-rdp_tcp_disconnect(struct rdp_tcp* self)
+rdp_tcp_disconnect(struct rdp_tcp *self)
{
- if (self->sck != 0)
- {
- g_tcp_close(self->sck);
- }
- self->sck = 0;
- return 0;
+ if (self->sck != 0)
+ {
+ g_tcp_close(self->sck);
+ }
+
+ self->sck = 0;
+ return 0;
}
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