From: André Hentschel <nerv@dawncrow.de>
Subject: kernel32: Create registry keys for available COM ports
Message-Id: <5601B6B5.7050100@dawncrow.de>
Date: Tue, 22 Sep 2015 22:14:45 +0200

---
 dlls/kernel32/kernel_private.h |  3 +++
 dlls/kernel32/oldconfig.c      | 42 +++++++++++++++++++++++++++++++++++++++---
 dlls/kernel32/volume.c         |  2 +-
 3 files changed, 43 insertions(+), 4 deletions(-)

diff --git a/dlls/kernel32/kernel_private.h b/dlls/kernel32/kernel_private.h
index 76611d7..9f2db22 100644
--- a/dlls/kernel32/kernel_private.h
+++ b/dlls/kernel32/kernel_private.h
@@ -107,6 +107,9 @@ extern void LOCALE_InitRegistry(void) DECLSPEC_HIDDEN;
 /* oldconfig.c */
 extern void convert_old_config(void) DECLSPEC_HIDDEN;
 
+/* volume.c */
+extern char *get_dos_device_path(LPCWSTR) DECLSPEC_HIDDEN;
+
 /* returns directory handle for named objects */
 extern HANDLE get_BaseNamedObjects_handle(void) DECLSPEC_HIDDEN;
 
diff --git a/dlls/kernel32/oldconfig.c b/dlls/kernel32/oldconfig.c
index 2c8bc18..b7f6b97 100644
--- a/dlls/kernel32/oldconfig.c
+++ b/dlls/kernel32/oldconfig.c
@@ -264,8 +264,8 @@ static int SCSI_getprocentry( FILE * procfile, struct LinuxProcScsiDevice * dev
 }
 
 
-/* create the hardware registry branch */
-static void create_hardware_branch(void)
+/* create the scsi registry branch */
+static void create_scsi_branch(void)
 {
     /* The following mostly will work on Linux, but should not cause
      * problems on other systems. */
@@ -389,6 +389,41 @@ static void create_hardware_branch(void)
 }
 
 
+/* create SERIALCOMM branch */
+void create_serialcomm_branch(void)
+{
+    static WCHAR comW[] = {'C','O','M','1',0};
+    UNICODE_STRING nameU;
+    DWORD disp;
+    HANDLE key;
+    int i;
+
+    /* Ensure there is a SERIALCOMM key */
+    if (create_key( 0, "Machine\\HARDWARE\\DEVICEMAP\\SERIALCOMM", &key, &disp )) return;
+
+    for (i = 1; i <= 9; i++)
+    {
+        char *link;
+        int ret;
+
+        comW[3] = 0x30 + i;
+        link = get_dos_device_path( comW );
+        ret = access( link, R_OK | W_OK );
+
+        RtlCreateUnicodeString( &nameU, comW );
+        if (ret)
+            NtDeleteValueKey( key, &nameU );
+        else
+            NtSetValueKey( key, &nameU, 0, REG_SZ, (BYTE*)comW, sizeof(comW) );
+        RtlFreeUnicodeString( &nameU );
+
+        HeapFree(GetProcessHeap(), 0, link);
+    }
+
+    NtClose(key);
+}
+
+
 /***********************************************************************
  *              convert_old_config
  */
@@ -400,5 +435,6 @@ void convert_old_config(void)
     /* create some hardware keys (FIXME: should not be done here) */
     if (create_key( 0, "Machine\\HARDWARE", &key, &disp )) return;
     NtClose( key );
-    if (disp != REG_OPENED_EXISTING_KEY) create_hardware_branch();
+    if (disp != REG_OPENED_EXISTING_KEY) create_scsi_branch();
+    create_serialcomm_branch();
 }
diff --git a/dlls/kernel32/volume.c b/dlls/kernel32/volume.c
index 7a1dc11..43fbb7e 100644
--- a/dlls/kernel32/volume.c
+++ b/dlls/kernel32/volume.c
@@ -99,7 +99,7 @@ static char *read_symlink( const char *path )
 }
 
 /* get the path of a dos device symlink in the $WINEPREFIX/dosdevices directory */
-static char *get_dos_device_path( LPCWSTR name )
+char *get_dos_device_path( LPCWSTR name )
 {
     const char *config_dir = wine_get_config_dir();
     char *buffer, *dev;

-- 
1.9.1