* cygprops.h: New file.

	* dtable.cc (handle_to_fn): Add check for correct installation_key
	string in object name for pipes and ttys.
	* external.cc (cygwin_internal): Add CW_GET_INSTKEY to allow fetching
	the installation_key from cygserver.
	* fhandler_fifo.cc (fhandler_fifo::fifo_name): Add installation_key
	to fifo name.
	* globals.cc: Include cygprops.h.
	(_RDATA): Move slightly and add comment.
	(cygwin_props): Define.
	* mount.cc (mount_info::init): Accommodate the fact that
	installation_root is now a global variable in DLL common shared memory,
	rather than a member of cygwin_shared.
	* pipe.cc (fhandler_pipe::create_selectable): Add installation_key to
	pipe name.
	* shared.cc (installation_root): Define here for storage in DLL
	common shared memory.
	(installation_key): Ditto.
	(installation_key_buf): Ditto.
	(init_installation_root): Convert from shared_info method to ordinary
	function.  Add initializing installation_key.  Invalidate
	installation_key depending of value of disable_key property.  Add
	comment to explain.
	(get_shared_parent_dir): Add installation_key to directory name.
	(get_session_parent_dir): Ditto.
	(shared_info::initialize): Move call to init_installation_root from
	here...
	(memory_init): ...to here.  Add debug output to print installation root
	and installation key.  Add comment to explain why.
	* shared_info.h (SHARED_INFO_CB): Recalculate.
	(CURR_SHARED_MAGIC): Ditto.
	(class shared_info): Remove definition of installation_root and
	declaration of init_installation_root.
	(init_installation_root): Declare.
	(installation_root): Declare.
	(installation_key): Declare.
	* uinfo.cc (pwdgrp::load): Accommodate the fact that installation_root
	is now a global variable in DLL common shared memory.
	* include/cygwin/version.h: Bump API minor number.
	(CYGWIN_INFO_INSTALLATIONS_NAME): Add.
	* include/sys/cygwin.h (cygwin_getinfo_types): Add CW_GET_INSTKEY.

1 files changed, 7 insertions, 3 deletions

diff --git a/winsup/cygwin/pipe.cc b/winsup/cygwin/pipe.cc
index 5e557d8c6..aad1531d1 100644
--- a/winsup/cygwin/pipe.cc
+++ b/winsup/cygwin/pipe.cc
@@ -21,6 +21,7 @@ details. */
 #include "dtable.h"
 #include "cygheap.h"
 #include "pinfo.h"
+#include "shared_info.h"
 
 fhandler_pipe::fhandler_pipe ()
   : fhandler_base (), popen_pid (0), overlapped (NULL)
@@ -216,7 +217,10 @@ fhandler_pipe::create_selectable (LPSECURITY_ATTRIBUTES sa_ptr, HANDLE& r,
   if (psize < PIPE_BUF)
     psize = PIPE_BUF;
 
-  char pipename[MAX_PATH] = PIPE_INTRO;
+  char pipename[MAX_PATH];
+  const size_t len = __small_sprintf (pipename, PIPE_INTRO "%S-",
+				      &installation_key);
+
   /* FIXME: Eventually make ttys work with overlapped I/O. */
   DWORD overlapped = name ? 0 : FILE_FLAG_OVERLAPPED;
 
@@ -228,10 +232,10 @@ fhandler_pipe::create_selectable (LPSECURITY_ATTRIBUTES sa_ptr, HANDLE& r,
     {
       static volatile ULONG pipe_unique_id;
       if (!name)
-	__small_sprintf (pipename + strlen(PIPE_INTRO), "pipe-%p-%p", myself->pid,
+	__small_sprintf (pipename + len, "pipe-%p-%p", myself->pid,
 			InterlockedIncrement ((LONG *) &pipe_unique_id));
       else
-	strcpy (pipename + strlen(PIPE_INTRO), name);
+	strcpy (pipename + len, name);
 
       debug_printf ("CreateNamedPipe: name %s, size %lu", pipename, psize);