Don't use safe_new but new throughout. Fix copyright dates

	throughout.
	* Makefile.in: Accomodate all new files and name changes.
	Add a *.d dependency.
	(sbindir): Add.
	(etcdir): Drop in favor of more appropriate sysconfdir definition.
	(sysconfdir): Add.
	(CXXFLAGS): Add -MMD flag. Add SYSCONFDIR definition.
	(.SUFFIXES): Add.
	(install): Add action items.
	(libclean): New target.
	(fullclean): Ditto.
	* bsd_helper.cc: New file.
	* bsd_helper.h: Ditto.
	* bsd_log.cc: Ditto.
	* bsd_log.h: Ditto.
	* bsd_mutex.cc: Ditto.
	* bsd_mutex.h: Ditto.
	* client.cc: Rearrange to build as less as possible if
	__INSIDE_CYGWIN__.
	(client_request::handle_request): Add Message Queue and Semaphore
	handling.
	* cygserver.cc: Rearrange to build as less as possible if
	__INSIDE_CYGWIN__. Use new debug/log/panic logging functions.
	(DEF_CONFIG_FILE): New definition for configuration file.  Use
	throughout.
	(getfunc): Remove.
	(__cygserver__printf): Remove.
	(client_request_attach_tty::serve): Return error if impersonation
	fails.
	(print_usage): Pump up help message.
	(print_version): Add output of default configuration file.
	(main): Accommodate new options.  Allow overwrite of threading options
	from config file.  Call several new initialization functions.  Drop
	printing dots.  Don't define SIGHANDLE inline.
	* cygserver.conf: New file.
	* cygserver_process.h: Rename to process.h.
	* cygserver_transport.h: Rename to transport.h.
	* cygserver_transport_pipes.h: Rename to transport_pipes.h.
	* cygserver_transport_sockets.h: Rename to transport_sockets.h.
	* msg.cc: Rewrite.
	* sem.cc: Rewrite.
	* shm.cc: Rewrite.
	* sysv_msg.cc: New file, derived from FreeBSD version 1.52.
	* sysv_sem.cc: New file, derived from FreeBSD version 1.66.
	* sysv_shm.cc: New file, derived from FreeBSD version 1.89.
	* threaded_queue.cc: Rearrange to build as less as possible if
	__INSIDE_CYGWIN__.
	* transport.cc (transport_layer_base::impersonate_client): Define bool.
	(transport_layer_base::revert_to_self): Ditto.
	* transport.h (transport_layer_base::impersonate_client): Declare bool.
	(transport_layer_base::revert_to_self): Ditto.
	* transport_pipes.cc (transport_layer_pipes::transport_layer_pipes):
	Don't call init_security.
	(init_security): Remove.
	(transport_layer_pipes::accept): Use global sec_all_nih.
	(transport_layer_pipes::connect): Ditto.
	(transport_layer_pipes::impersonate_client): Define bool.
	(transport_layer_pipes::revert_to_self): Ditt.
	* transport_pipes.h (transport_layer_pipes::impersonate_client): Declare
	bool.
	(transport_layer_pipes::revert_to_self): Ditto.
	* woutsup.h: Include bsd compatibility headers.
	(SIGHANDLE): Add definition.
	(__cygserver__printf): Remove definition.
	(__noop_printf): Ditto.
	(debug_printf): Define using debug.
	(syscall_printf): Define using log.
	(system_printf): Ditto.
	Drop all other _printf definitions.

1 files changed, 84 insertions, 23 deletions

diff --git a/winsup/cygserver/sem.cc b/winsup/cygserver/sem.cc
index 97d91a3..6a179b0 100644
--- a/winsup/cygserver/sem.cc
+++ b/winsup/cygserver/sem.cc
@@ -1,8 +1,6 @@
 /* sem.cc: Single unix specification IPC interface for Cygwin.
 
-   Copyright 2002 Red Hat, Inc.
-
-   Written by Conrad Scott <conrad.scott@dsl.pipex.com>.
+   Copyright 2003 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -10,31 +8,94 @@ This software is a copyrighted work licensed under the terms of the
 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
 details. */
 
-#include "winsup.h"
+#ifdef __OUTSIDE_CYGWIN__
+#include "woutsup.h"
 
-#include <sys/types.h>
-#include <cygwin/sem.h>
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
 
+#include "cygserver.h"
+#include "process.h"
+#include "transport.h"
 
-#include "cygerrno.h"
+#include "cygserver_ipc.h"
+#include "cygserver_sem.h"
 
-extern "C" int
-semctl (int semid, int semnum, int cmd, ...)
-{
-  set_errno (ENOSYS);
-  return -1;
-}
-
-extern "C" int
-semget (key_t key, int nsems, int semflg)
-{
-  set_errno (ENOSYS);
-  return -1;
+client_request_sem::client_request_sem ()
+  : client_request (CYGSERVER_REQUEST_SEM,
+		    &_parameters, sizeof (_parameters))
+{ 
 }
 
-extern "C" int
-semop (int semid, struct sembuf *sops, size_t nsops)
+void
+client_request_sem::serve (transport_layer_base *const conn,
+                           process_cache *const cache)
 {
-  set_errno (ENOSYS);
-  return -1;
+  if (msglen () != sizeof (_parameters.in))
+    {
+      syscall_printf ("bad request body length: expecting %lu bytes, got %lu",
+		      sizeof (_parameters), msglen ());
+      error_code (EINVAL);
+      msglen (0);
+      return;
+    }
+  if (support_semaphores == TUN_FALSE)
+    {
+      syscall_printf ("Semaphore support not started");
+      error_code (ENOSYS);
+      _parameters.out.ret = -1;
+      msglen (sizeof (_parameters.out));
+      return;
+    }
+  process *const client = cache->process (_parameters.in.ipcblk.cygpid,
+					  _parameters.in.ipcblk.winpid);
+  if (!client)
+    {
+      error_code (EAGAIN);
+      msglen (0);
+      return;
+    }
+  if (!conn->impersonate_client ())
+    {
+      client->release ();
+      error_code (EACCES);
+      msglen (0);
+      return;
+    }
+  if (!adjust_identity_info (&_parameters.in.ipcblk))
+    {
+      client->release ();
+      conn->revert_to_self ();
+      error_code (EACCES);
+      msglen (0);
+      return;
+    }
+  /* Early revert_to_self since IPC code runs in kernel mode. */
+  conn->revert_to_self ();
+  thread td = { client, &_parameters.in.ipcblk, {-1, -1} };
+  int res;
+  switch (_parameters.in.semop)
+    {
+      case SEMOP_semctl:
+	res = semctl (&td, &_parameters.in.ctlargs);
+        break;
+      case SEMOP_semget:
+	res = semget (&td, &_parameters.in.getargs);
+        break;
+      case SEMOP_semop:
+	res = semop (&td, &_parameters.in.opargs);
+        break;
+    }
+  /* Allocated by the call to adjust_identity_info(). */
+  if (_parameters.in.ipcblk.gidlist)
+    free (_parameters.in.ipcblk.gidlist);
+  client->release ();
+  error_code (res);
+  _parameters.out.ret = td.td_retval[0];
+  msglen (sizeof (_parameters.out));
 }
+#endif /* __OUTSIDE_CYGWIN__ */