Import X server from vnc-3.3.7.

[rdpsrv] / Xserver / lib / Xdmcp / Fill.c

diff --git a/Xserver/lib/Xdmcp/Fill.c b/Xserver/lib/Xdmcp/Fill.c
new file mode 100644 (file)
index 0000000..71a044e
--- /dev/null
+++ b/Xserver/lib/Xdmcp/Fill.c
@@ -0,0 +1,148 @@
+/*
+ * $XConsortium: Fill.c /main/11 1996/11/13 14:44:18 lehors $
+ * $XFree86: xc/lib/Xdmcp/Fill.c,v 3.4 1997/01/18 06:52:06 dawes Exp $
+ *
+ * 
+Copyright (c) 1989  X Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of the X Consortium shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from the X Consortium.
+ * *
+ * Author:  Keith Packard, MIT X Consortium
+ */
+
+#ifdef WIN32
+#define _WILLWINSOCK_
+#endif
+#include <X11/Xos.h>
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xdmcp.h>
+
+#ifdef STREAMSCONN
+#include <tiuser.h>
+#else
+#ifdef WIN32
+#include <X11/Xwinsock.h>
+#else
+#ifndef MINIX
+#ifndef Lynx
+#include <sys/socket.h>
+#else
+#include <socket.h>
+#endif /* !Lynx */
+#endif /* !MINIX */
+#endif
+#endif
+
+#ifndef MINIX
+int
+XdmcpFill (fd, buffer, from, fromlen)
+    int                    fd;
+    XdmcpBufferPtr  buffer;
+    XdmcpNetaddr    from;      /* return */
+    int                    *fromlen;   /* return */
+{
+    BYTE    *newBuf;
+#ifdef STREAMSCONN
+    struct t_unitdata dataunit;
+    int gotallflag, result;
+#endif
+
+    if (buffer->size < XDM_MAX_MSGLEN)
+    {
+       newBuf = (BYTE *) Xalloc (XDM_MAX_MSGLEN);
+       if (newBuf)
+       {
+           Xfree (buffer->data);
+           buffer->data = newBuf;
+           buffer->size = XDM_MAX_MSGLEN;
+       }
+    }
+    buffer->pointer = 0;
+#ifdef STREAMSCONN
+    dataunit.addr.buf = from;
+    dataunit.addr.maxlen = *fromlen;
+    dataunit.opt.maxlen = 0;   /* don't care to know about options */
+    dataunit.udata.buf = (char *)buffer->data;
+    dataunit.udata.maxlen = buffer->size;
+    result = t_rcvudata (fd, &dataunit, &gotallflag);
+    if (result < 0) {
+       return FALSE;
+    }
+    buffer->count = dataunit.udata.len;
+    *fromlen = dataunit.addr.len;
+#else
+    buffer->count = recvfrom (fd, (char*)buffer->data, buffer->size, 0,
+                             (struct sockaddr *)from, fromlen);
+#endif
+    if (buffer->count < 6) {
+       buffer->count = 0;
+       return FALSE;
+    }
+    return TRUE;
+}
+#else /* MINIX */
+int
+MNX_XdmcpFill (fd, buffer, from, fromlen, data, datalen)
+    int                    fd;
+    XdmcpBufferPtr  buffer;
+    XdmcpNetaddr    from;      /* return */
+    int                    *fromlen;   /* return */
+    char           *data;
+    int                    datalen;
+{
+    BYTE    *newBuf;
+    struct sockaddr_in *from_addr;
+    udp_io_hdr_t *udp_io_hdr;
+
+    if (buffer->size < XDM_MAX_MSGLEN)
+    {
+       newBuf = (BYTE *) Xalloc (XDM_MAX_MSGLEN);
+       if (newBuf)
+       {
+           Xfree (buffer->data);
+           buffer->data = newBuf;
+           buffer->size = XDM_MAX_MSGLEN;
+       }
+    }
+    buffer->pointer = 0;
+    udp_io_hdr= (udp_io_hdr_t *)data;
+    data += sizeof(udp_io_hdr_t) + udp_io_hdr->uih_ip_opt_len;
+    datalen -= sizeof(udp_io_hdr_t) + udp_io_hdr->uih_ip_opt_len;
+    buffer->count= udp_io_hdr->uih_data_len;
+    if (buffer->count > datalen)
+    {
+       buffer->count= 0;
+       return FALSE;
+    }
+    bcopy(data, (char *)buffer->data, buffer->count);
+    from_addr= (struct sockaddr_in *)from;
+    from_addr->sin_family= AF_INET;
+    from_addr->sin_addr.s_addr= udp_io_hdr->uih_src_addr;
+    from_addr->sin_port= udp_io_hdr->uih_src_port;
+    if (buffer->count < 6) {
+       buffer->count = 0;
+       return FALSE;
+    }
+    return TRUE;
+}
+#endif /* !MINIX */