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author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2012-01-22 01:02:36 -0600 |
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committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2012-01-22 01:02:36 -0600 |
commit | b81e43465b14836b17e4fe2dea91c78a2bdd29b3 (patch) | |
tree | 7815d61ce59a6ccb6e655ed44f5fea786f520985 /tdm/backend/streams.c | |
parent | 7021f40c13f949b7cb5ded32d0241d648a43bf6c (diff) | |
download | tdebase-b81e43465b14836b17e4fe2dea91c78a2bdd29b3.tar.gz tdebase-b81e43465b14836b17e4fe2dea91c78a2bdd29b3.zip |
Part 2 of prior commit
Diffstat (limited to 'tdm/backend/streams.c')
-rw-r--r-- | tdm/backend/streams.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/tdm/backend/streams.c b/tdm/backend/streams.c new file mode 100644 index 000000000..f60fb955e --- /dev/null +++ b/tdm/backend/streams.c @@ -0,0 +1,127 @@ +/* + +Copyright 1988, 1998 The Open Group +Copyright 2002,2004 Oswald Buddenhagen <ossi@kde.org> + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +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 COPYRIGHT HOLDERS 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 a copyright holder 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 copyright holder. + +*/ + +/* + * xdm - display manager daemon + * Author: Keith Packard, MIT X Consortium + * + * streams.c - Support for STREAMS + */ + +#include "dm.h" + +#if defined(XDMCP) && defined(STREAMSCONN) + +#include "dm_error.h" + +#include <fcntl.h> +#include <tiuser.h> +#include <netconfig.h> +#include <netdir.h> + +static int xdmcpFd = -1, c_request_port; + +void +UpdateListenSockets( void ) +{ + struct t_bind bind_addr; + struct netconfig *nconf; + struct nd_hostserv service; + struct nd_addrlist *servaddrs; + char bindbuf[15]; + int it; + + if (c_request_port == request_port) + return; + c_request_port = request_port; + + if (xdmcpFd != -1) { + CloseNClearCloseOnFork( xdmcpFd ); + UnregisterInput( xdmcpFd ); + xdmcpFd = -1; + } + + if (!request_port) + return; + + Debug( "creating UDP stream %d\n", request_port ); + + nconf = getnetconfigent( "udp" ); + if (!nconf) { + t_error( "getnetconfigent udp" ); + return; + } + + xdmcpFd = t_open( nconf->nc_device, O_RDWR, NULL ); + if (xdmcpFd == -1) { + LogError( "XDMCP stream creation failed\n" ); + t_error( "CreateWellKnownSockets(xdmcpFd): t_open failed" ); + return; + } + + service.h_host = HOST_SELF; + sprintf( bindbuf, "%d", request_port ); + service.h_serv = bindbuf; + netdir_getbyname( nconf, &service, &servaddrs ); + freenetconfigent( nconf ); + + bind_addr.qlen = 5; + bind_addr.addr.buf = servaddrs->n_addrs[0].buf; + bind_addr.addr.len = servaddrs->n_addrs[0].len; + bind_addr.addr.maxlen = servaddrs->n_addrs[0].len; + it = t_bind( xdmcpFd, &bind_addr, &bind_addr ); + netdir_free( (char *)servaddrs, ND_ADDRLIST ); + if (it < 0) { + LogError( "Error binding UDP port %d\n", request_port ); + t_error( "CreateWellKnownSockets(xdmcpFd): t_bind failed" ); + t_close( xdmcpFd ); + xdmcpFd = -1; + return; + } + RegisterCloseOnFork( xdmcpFd ); + RegisterInput( xdmcpFd ); +} + +int +AnyListenSockets( void ) +{ + return xdmcpFd != -1; +} + +int +ProcessRequestSockets( FD_TYPE *reads ) +{ + if (xdmcpFd >= 0 && FD_ISSET( xdmcpFd, reads )) { + ProcessRequestSocket( xdmcpFd ); + return 1; + } + return 0; +} + +#endif /* STREAMSCONN && XDMCP */ |