* external.cc (cygwin_internal): Implement CW_CMDLINE.

* pinfo.h (SIGCOMMUNE): New signal type.
(commune_result): New structure for commune functions.
(picom): New enum for commune functions.
(_pinfo::hello_pid): New.  Pid who's communicating with me.
(_pinfo::tothem): New.  Handle of communicating pipe.
(_pinfo::fromthem): Ditto.
(_pinfo::commune_recv): Declare.
(_pinfo::commune_send): Declare.
(_pinfo::alive): Declare.
(_pinfo::cmdline): Declare.
(_pinfo::lock): Declare.
* pinfo.cc (set_myself): Initialize new _pinfo lock.
(_pinfo::alive): Define.  Determines if process still exists.
(_pinfo::commune_recv): Define.  Receive info from another cooperating process.
(_pinfo::commune_send): Define.  Send info to another cooperating process.
(_pinfo::cmdline): Define.  Determine command line of a given process.
* include/sys/cygwin.h (CW_CMDLINE): Define.
*sigproc.cc (talktome): Communicate with any processes who want to talk to me.
(wait_sig): Honor __SIGCOMMUNE.
* fhandler.cc (fhandler_virtual::fixup_after_exec): Declare.
* fhandler_proc.cc: Use malloc/free/realloc throughout rather than cmalloc
since buffers don't need to be propagated to subprocesses.
* fhandler_registry.cc: Ditto.
* fhandler_virtual.cc: Ditto.
(fhandler_virtual::fixup_after_exec): Define.
* fhandler_process.cc: Ditto for malloc/free/realloc.
(process_listin): Add "cmdline".
(fhandler_process::fill_filebuf): Implement PROCESS_CMDLINE.
* miscfuncs.cc (isalpha_array): New array populated with xor values for alpha
characters to switch from one case to another.
* string.h (cygwin_strcasematch): New asm implementation of case match.
* string.h (cygwin_nstrcasematch): New asm implementation of counted case
match.

1 files changed, 4 insertions, 9 deletions

diff --git a/winsup/cygwin/fhandler_registry.cc b/winsup/cygwin/fhandler_registry.cc
index f2e5e2145..8a9f27ed9 100644
--- a/winsup/cygwin/fhandler_registry.cc
+++ b/winsup/cygwin/fhandler_registry.cc
@@ -555,7 +555,7 @@ fhandler_registry::fill_filebuf ()
 	  goto value_not_found;
 	}
       bufalloc = size;
-      filebuf = (char *) cmalloc (HEAP_BUF, bufalloc);
+      filebuf = (char *) malloc (bufalloc);
       error =
 	RegQueryValueEx (handle, value_name, NULL, NULL, (BYTE *) filebuf,
 			 &size);
@@ -572,14 +572,9 @@ fhandler_registry::fill_filebuf ()
       do
 	{
 	  bufalloc += 1000;
-	  if (filebuf)
-	    {
-	      cfree (filebuf);
-	      filebuf = (char *) cmalloc (HEAP_BUF, bufalloc);
-	    }
-	  error =
-	    RegQueryValueEx (handle, value_name, NULL, &type,
-			     (BYTE *) filebuf, &size);
+	  filebuf = (char *) realloc (filebuf, bufalloc);
+	  error = RegQueryValueEx (handle, value_name, NULL, &type,
+				   (BYTE *) filebuf, &size);
 	  if (error != ERROR_SUCCESS && error != ERROR_MORE_DATA)
 	    {
 	      if (error != ERROR_FILE_NOT_FOUND)