/[rdesktop]/sourceforge.net/trunk/rdesktop/tcp.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 963 by astrand, Wed Aug 3 10:56:16 2005 UTC revision 1328 by stargo, Fri Nov 3 23:51:35 2006 UTC
# Line 34  Line 34 
34    
35  static int sock;  static int sock;
36  static struct stream in;  static struct stream in;
37    #ifndef WITH_SCARD
38  static struct stream out;  static struct stream out;
39    #endif
40  int g_tcp_port_rdp = TCP_PORT_RDP;  int g_tcp_port_rdp = TCP_PORT_RDP;
41    
42  /* Initialise TCP transport data packet */  /* Initialise TCP transport data packet */
43  STREAM  STREAM
44  tcp_init(uint32 maxlen)  tcp_init(uint32 maxlen)
45  {  {
46          if (maxlen > out.size)          STREAM result = NULL;
         {  
                 out.data = (uint8 *) xrealloc(out.data, maxlen);  
                 out.size = maxlen;  
         }  
47    
48          out.p = out.data;  #ifdef WITH_SCARD
49          out.end = out.data + out.size;          scard_lock(SCARD_LOCK_TCP);
50          return &out;          result = scard_tcp_init();
51    #else
52            result = &out;
53    #endif
54    
55            if (maxlen > result->size)
56            {
57                    result->data = (uint8 *) xrealloc(result->data, maxlen);
58                    result->size = maxlen;
59            }
60    
61            result->p = result->data;
62            result->end = result->data + result->size;
63    #ifdef WITH_SCARD
64            scard_unlock(SCARD_LOCK_TCP);
65    #endif
66            return result;
67  }  }
68    
69  /* Send TCP transport data packet */  /* Send TCP transport data packet */
# Line 59  tcp_send(STREAM s) Line 73  tcp_send(STREAM s)
73          int length = s->end - s->data;          int length = s->end - s->data;
74          int sent, total = 0;          int sent, total = 0;
75    
76    #ifdef WITH_SCARD
77            scard_lock(SCARD_LOCK_TCP);
78    #endif
79          while (total < length)          while (total < length)
80          {          {
81                  sent = send(sock, s->data + total, length - total, 0);                  sent = send(sock, s->data + total, length - total, 0);
# Line 70  tcp_send(STREAM s) Line 87  tcp_send(STREAM s)
87    
88                  total += sent;                  total += sent;
89          }          }
90    #ifdef WITH_SCARD
91            scard_unlock(SCARD_LOCK_TCP);
92    #endif
93  }  }
94    
95  /* Receive a message on the TCP layer */  /* Receive a message on the TCP layer */
# Line 214  tcp_connect(char *server) Line 234  tcp_connect(char *server)
234          in.size = 4096;          in.size = 4096;
235          in.data = (uint8 *) xmalloc(in.size);          in.data = (uint8 *) xmalloc(in.size);
236    
237    #ifdef WITH_SCARD
238            scard_tcp_connect();
239    #else
240          out.size = 4096;          out.size = 4096;
241          out.data = (uint8 *) xmalloc(out.size);          out.data = (uint8 *) xmalloc(out.size);
242    #endif
243    
244          return True;          return True;
245  }  }
# Line 242  tcp_get_address() Line 266  tcp_get_address()
266                  strcpy(ipaddr, "127.0.0.1");                  strcpy(ipaddr, "127.0.0.1");
267          return ipaddr;          return ipaddr;
268  }  }
269    
270    /* reset the state of the tcp layer */
271    /* Support for Session Directory */
272    void
273    tcp_reset_state(void)
274    {
275            sock = -1;              /* reset socket */
276    
277            /* Clear the incoming stream */
278            if (in.data != NULL)
279                    xfree(in.data);
280            in.p = NULL;
281            in.end = NULL;
282            in.data = NULL;
283            in.size = 0;
284            in.iso_hdr = NULL;
285            in.mcs_hdr = NULL;
286            in.sec_hdr = NULL;
287            in.rdp_hdr = NULL;
288            in.channel_hdr = NULL;
289    
290            /* Clear the outgoing stream(s) */
291    #ifdef WITH_SCARD
292            scard_tcp_reset_state();
293    #else
294            if (out.data != NULL)
295                    xfree(out.data);
296            out.p = NULL;
297            out.end = NULL;
298            out.data = NULL;
299            out.size = 0;
300            out.iso_hdr = NULL;
301            out.mcs_hdr = NULL;
302            out.sec_hdr = NULL;
303            out.rdp_hdr = NULL;
304            out.channel_hdr = NULL;
305    #endif
306    }
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