/[rdesktop]/sourceforge.net/trunk/rdesktop/channels.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 446 by matthewc, Mon Aug 18 04:52:51 2003 UTC revision 828 by stargo, Sun Mar 6 21:11:18 2005 UTC
# Line 2  Line 2 
2     rdesktop: A Remote Desktop Protocol client.     rdesktop: A Remote Desktop Protocol client.
3     Protocol services - Virtual channels     Protocol services - Virtual channels
4     Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003     Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003
5     Copyright (C) Matthew Chapman 2003     Copyright (C) Matthew Chapman 2003-2005
6    
7     This program is free software; you can redistribute it and/or modify     This program is free software; you can redistribute it and/or modify
8     it under the terms of the GNU General Public License as published by     it under the terms of the GNU General Public License as published by
# Line 81  channel_send(STREAM s, VCHANNEL * channe Line 81  channel_send(STREAM s, VCHANNEL * channe
81  {  {
82          uint32 length, flags;          uint32 length, flags;
83          uint32 thislength, remaining;          uint32 thislength, remaining;
84          char *data;          uint8 *data;
85    
86          /* first fragment sent in-place */          /* first fragment sent in-place */
87          s_pop_layer(s, channel_hdr);          s_pop_layer(s, channel_hdr);
88          length = s->end - s->p - 8;          length = s->end - s->p - 8;
89    
90            DEBUG_CLIPBOARD(("channel_send, length = %d\n", length));
91    
92          thislength = MIN(length, CHANNEL_CHUNK_LENGTH);          thislength = MIN(length, CHANNEL_CHUNK_LENGTH);
93    /* Note: In the original clipboard implementation, this number was
94       1592, not 1600. However, I don't remember the reason and 1600 seems
95       to work so.. This applies only to *this* length, not the length of
96       continuation or ending packets. */
97          remaining = length - thislength;          remaining = length - thislength;
98          flags = (remaining == 0) ? CHANNEL_FLAG_FIRST | CHANNEL_FLAG_LAST : CHANNEL_FLAG_FIRST;          flags = (remaining == 0) ? CHANNEL_FLAG_FIRST | CHANNEL_FLAG_LAST : CHANNEL_FLAG_FIRST;
99          if (channel->flags & CHANNEL_OPTION_SHOW_PROTOCOL)          if (channel->flags & CHANNEL_OPTION_SHOW_PROTOCOL)
# Line 96  channel_send(STREAM s, VCHANNEL * channe Line 102  channel_send(STREAM s, VCHANNEL * channe
102          out_uint32_le(s, length);          out_uint32_le(s, length);
103          out_uint32_le(s, flags);          out_uint32_le(s, flags);
104          data = s->end = s->p + thislength;          data = s->end = s->p + thislength;
105            DEBUG_CLIPBOARD(("Sending %d bytes with FLAG_FIRST\n", thislength));
106          sec_send_to_channel(s, g_encryption ? SEC_ENCRYPT : 0, channel->mcs_id);          sec_send_to_channel(s, g_encryption ? SEC_ENCRYPT : 0, channel->mcs_id);
107    
108          /* subsequent segments copied (otherwise would have to generate headers backwards) */          /* subsequent segments copied (otherwise would have to generate headers backwards) */
# Line 104  channel_send(STREAM s, VCHANNEL * channe Line 111  channel_send(STREAM s, VCHANNEL * channe
111                  thislength = MIN(remaining, CHANNEL_CHUNK_LENGTH);                  thislength = MIN(remaining, CHANNEL_CHUNK_LENGTH);
112                  remaining -= thislength;                  remaining -= thislength;
113                  flags = (remaining == 0) ? CHANNEL_FLAG_LAST : 0;                  flags = (remaining == 0) ? CHANNEL_FLAG_LAST : 0;
114                    if (channel->flags & CHANNEL_OPTION_SHOW_PROTOCOL)
115                            flags |= CHANNEL_FLAG_SHOW_PROTOCOL;
116    
117                    DEBUG_CLIPBOARD(("Sending %d bytes with flags %d\n", thislength, flags));
118    
119                  s = sec_init(g_encryption ? SEC_ENCRYPT : 0, thislength + 8);                  s = sec_init(g_encryption ? SEC_ENCRYPT : 0, thislength + 8);
120                  out_uint32_le(s, length);                  out_uint32_le(s, length);
# Line 121  channel_process(STREAM s, uint16 mcs_cha Line 132  channel_process(STREAM s, uint16 mcs_cha
132  {  {
133          uint32 length, flags;          uint32 length, flags;
134          uint32 thislength;          uint32 thislength;
135          VCHANNEL *channel;          VCHANNEL *channel = NULL;
136          unsigned int i;          unsigned int i;
137          STREAM in;          STREAM in;
138    
# Line 150  channel_process(STREAM s, uint16 mcs_cha Line 161  channel_process(STREAM s, uint16 mcs_cha
161                  {                  {
162                          if (length > in->size)                          if (length > in->size)
163                          {                          {
164                                  in->data = xrealloc(in->data, length);                                  in->data = (uint8 *) xrealloc(in->data, length);
165                                  in->size = length;                                  in->size = length;
166                          }                          }
167                          in->p = in->data;                          in->p = in->data;
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