[Bug 3508771] load tclreg.dll in cygwin tclsh

Implement TclWinGetTclInstance, TclpGetTZName,
and various others for Cygwin

4 files changed, 60 insertions, 45 deletions

diff --git a/generic/tclInt.decls b/generic/tclInt.decls
index cb01b22..5496b4b 100644
--- a/generic/tclInt.decls
+++ b/generic/tclInt.decls
@@ -1025,7 +1025,7 @@ declare 2 win {
 }
 declare 3 win {
     int TclWinGetSockOpt(SOCKET s, int level, int optname,
-	    char FAR *optval, int FAR *optlen)
+	    char *optval, int *optlen)
 }
 declare 4 win {
     HINSTANCE TclWinGetTclInstance(void)
@@ -1039,7 +1039,7 @@ declare 6 win {
 }
 declare 7 win {
     int TclWinSetSockOpt(SOCKET s, int level, int optname,
-	    const char FAR *optval, int optlen)
+	    const char *optval, int optlen)
 }
 declare 8 win {
     unsigned long TclpGetPid(Tcl_Pid pid)
@@ -1149,7 +1149,7 @@ declare 3 unix {
 }
 # On non-cygwin, this is actually a reference to TclpCreateProcess
 declare 4 unix {
-    int TclWinGetTclInstance(void)
+    void *TclWinGetTclInstance(void)
 }
 # Signature changed in 8.1:
 #  declare 5 unix {
@@ -1162,7 +1162,7 @@ declare 6 unix {
 }
 # On non-cygwin, this is actually a reference to TclpOpenFile
 declare 7 unix {
-    int TclWinSetSockOpt(int s, int level, int optname,
+    int TclWinSetSockOpt(void *s, int level, int optname,
 	    const char *optval, int optlen)
 }
 declare 8 unix {
@@ -1229,7 +1229,7 @@ declare 19 {unix macosx} {
     void TclMacOSXNotifierAddRunLoopMode(const void *runLoopMode)
 }
 declare 20 unix {
-    void TclWinAddProcess(void *hProcess, unsigned long id)
+    void TclWinAddProcess(void *hProcess, unsigned int id)
 }
 declare 22 unix {
     TclFile TclpCreateTempFile(const char *contents)
diff --git a/generic/tclIntPlatDecls.h b/generic/tclIntPlatDecls.h
index 5d3e2ab..20da2fd 100644
--- a/generic/tclIntPlatDecls.h
+++ b/generic/tclIntPlatDecls.h
@@ -58,12 +58,12 @@ EXTERN Tcl_Channel	TclpCreateCommandChannel(TclFile readFile,
 /* 3 */
 EXTERN int		TclpCreatePipe(TclFile *readPipe, TclFile *writePipe);
 /* 4 */
-EXTERN int		TclWinGetTclInstance(void);
+EXTERN void *		TclWinGetTclInstance(void);
 /* Slot 5 is reserved */
 /* 6 */
 EXTERN unsigned short	TclWinNToHS(unsigned short ns);
 /* 7 */
-EXTERN int		TclWinSetSockOpt(int s, int level, int optname,
+EXTERN int		TclWinSetSockOpt(void *s, int level, int optname,
 				const char *optval, int optlen);
 /* 8 */
 EXTERN int		TclUnixWaitForFile(int fd, int mask, int timeout);
@@ -96,7 +96,7 @@ EXTERN int		TclMacOSXMatchType(Tcl_Interp *interp,
 EXTERN void		TclMacOSXNotifierAddRunLoopMode(
 				const void *runLoopMode);
 /* 20 */
-EXTERN void		TclWinAddProcess(void *hProcess, unsigned long id);
+EXTERN void		TclWinAddProcess(void *hProcess, unsigned int id);
 /* Slot 21 is reserved */
 /* 22 */
 EXTERN TclFile		TclpCreateTempFile(const char *contents);
@@ -129,7 +129,7 @@ EXTERN struct servent *	 TclWinGetServByName(const char *nm,
 				const char *proto);
 /* 3 */
 EXTERN int		TclWinGetSockOpt(SOCKET s, int level, int optname,
-				char FAR *optval, int FAR *optlen);
+				char *optval, int *optlen);
 /* 4 */
 EXTERN HINSTANCE	TclWinGetTclInstance(void);
 /* Slot 5 is reserved */
@@ -137,7 +137,7 @@ EXTERN HINSTANCE	TclWinGetTclInstance(void);
 EXTERN u_short		TclWinNToHS(u_short ns);
 /* 7 */
 EXTERN int		TclWinSetSockOpt(SOCKET s, int level, int optname,
-				const char FAR *optval, int optlen);
+				const char *optval, int optlen);
 /* 8 */
 EXTERN unsigned long	TclpGetPid(Tcl_Pid pid);
 /* 9 */
@@ -196,12 +196,12 @@ EXTERN Tcl_Channel	TclpCreateCommandChannel(TclFile readFile,
 /* 3 */
 EXTERN int		TclpCreatePipe(TclFile *readPipe, TclFile *writePipe);
 /* 4 */
-EXTERN int		TclWinGetTclInstance(void);
+EXTERN void *		TclWinGetTclInstance(void);
 /* Slot 5 is reserved */
 /* 6 */
 EXTERN unsigned short	TclWinNToHS(unsigned short ns);
 /* 7 */
-EXTERN int		TclWinSetSockOpt(int s, int level, int optname,
+EXTERN int		TclWinSetSockOpt(void *s, int level, int optname,
 				const char *optval, int optlen);
 /* 8 */
 EXTERN int		TclUnixWaitForFile(int fd, int mask, int timeout);
@@ -240,7 +240,7 @@ EXTERN int		TclMacOSXMatchType(Tcl_Interp *interp,
 EXTERN void		TclMacOSXNotifierAddRunLoopMode(
 				const void *runLoopMode);
 /* 20 */
-EXTERN void		TclWinAddProcess(void *hProcess, unsigned long id);
+EXTERN void		TclWinAddProcess(void *hProcess, unsigned int id);
 /* Slot 21 is reserved */
 /* 22 */
 EXTERN TclFile		TclpCreateTempFile(const char *contents);
@@ -273,10 +273,10 @@ typedef struct TclIntPlatStubs {
     void (*tclWinConvertWSAError) (unsigned int errCode); /* 1 */
     Tcl_Channel (*tclpCreateCommandChannel) (TclFile readFile, TclFile writeFile, TclFile errorFile, int numPids, Tcl_Pid *pidPtr); /* 2 */
     int (*tclpCreatePipe) (TclFile *readPipe, TclFile *writePipe); /* 3 */
-    int (*tclWinGetTclInstance) (void); /* 4 */
+    void * (*tclWinGetTclInstance) (void); /* 4 */
     void (*reserved5)(void);
     unsigned short (*tclWinNToHS) (unsigned short ns); /* 6 */
-    int (*tclWinSetSockOpt) (int s, int level, int optname, const char *optval, int optlen); /* 7 */
+    int (*tclWinSetSockOpt) (void *s, int level, int optname, const char *optval, int optlen); /* 7 */
     int (*tclUnixWaitForFile) (int fd, int mask, int timeout); /* 8 */
     int (*tclWinGetPlatformId) (void); /* 9 */
     Tcl_DirEntry * (*tclpReaddir) (DIR *dir); /* 10 */
@@ -289,7 +289,7 @@ typedef struct TclIntPlatStubs {
     void (*reserved17)(void);
     int (*tclMacOSXMatchType) (Tcl_Interp *interp, const char *pathName, const char *fileName, Tcl_StatBuf *statBufPtr, Tcl_GlobTypeData *types); /* 18 */
     void (*tclMacOSXNotifierAddRunLoopMode) (const void *runLoopMode); /* 19 */
-    void (*tclWinAddProcess) (void *hProcess, unsigned long id); /* 20 */
+    void (*tclWinAddProcess) (void *hProcess, unsigned int id); /* 20 */
     void (*reserved21)(void);
     TclFile (*tclpCreateTempFile) (const char *contents); /* 22 */
     char * (*tclpGetTZName) (int isdst); /* 23 */
@@ -306,11 +306,11 @@ typedef struct TclIntPlatStubs {
     void (*tclWinConvertError) (DWORD errCode); /* 0 */
     void (*tclWinConvertWSAError) (DWORD errCode); /* 1 */
     struct servent * (*tclWinGetServByName) (const char *nm, const char *proto); /* 2 */
-    int (*tclWinGetSockOpt) (SOCKET s, int level, int optname, char FAR *optval, int FAR *optlen); /* 3 */
+    int (*tclWinGetSockOpt) (SOCKET s, int level, int optname, char *optval, int *optlen); /* 3 */
     HINSTANCE (*tclWinGetTclInstance) (void); /* 4 */
     void (*reserved5)(void);
     u_short (*tclWinNToHS) (u_short ns); /* 6 */
-    int (*tclWinSetSockOpt) (SOCKET s, int level, int optname, const char FAR *optval, int optlen); /* 7 */
+    int (*tclWinSetSockOpt) (SOCKET s, int level, int optname, const char *optval, int optlen); /* 7 */
     unsigned long (*tclpGetPid) (Tcl_Pid pid); /* 8 */
     int (*tclWinGetPlatformId) (void); /* 9 */
     void (*reserved10)(void);
@@ -339,10 +339,10 @@ typedef struct TclIntPlatStubs {
     void (*tclWinConvertWSAError) (unsigned int errCode); /* 1 */
     Tcl_Channel (*tclpCreateCommandChannel) (TclFile readFile, TclFile writeFile, TclFile errorFile, int numPids, Tcl_Pid *pidPtr); /* 2 */
     int (*tclpCreatePipe) (TclFile *readPipe, TclFile *writePipe); /* 3 */
-    int (*tclWinGetTclInstance) (void); /* 4 */
+    void * (*tclWinGetTclInstance) (void); /* 4 */
     void (*reserved5)(void);
     unsigned short (*tclWinNToHS) (unsigned short ns); /* 6 */
-    int (*tclWinSetSockOpt) (int s, int level, int optname, const char *optval, int optlen); /* 7 */
+    int (*tclWinSetSockOpt) (void *s, int level, int optname, const char *optval, int optlen); /* 7 */
     int (*tclUnixWaitForFile) (int fd, int mask, int timeout); /* 8 */
     int (*tclWinGetPlatformId) (void); /* 9 */
     Tcl_DirEntry * (*tclpReaddir) (DIR *dir); /* 10 */
@@ -355,7 +355,7 @@ typedef struct TclIntPlatStubs {
     int (*tclMacOSXCopyFileAttributes) (const char *src, const char *dst, const Tcl_StatBuf *statBufPtr); /* 17 */
     int (*tclMacOSXMatchType) (Tcl_Interp *interp, const char *pathName, const char *fileName, Tcl_StatBuf *statBufPtr, Tcl_GlobTypeData *types); /* 18 */
     void (*tclMacOSXNotifierAddRunLoopMode) (const void *runLoopMode); /* 19 */
-    void (*tclWinAddProcess) (void *hProcess, unsigned long id); /* 20 */
+    void (*tclWinAddProcess) (void *hProcess, unsigned int id); /* 20 */
     void (*reserved21)(void);
     TclFile (*tclpCreateTempFile) (const char *contents); /* 22 */
     char * (*tclpGetTZName) (int isdst); /* 23 */
@@ -573,6 +573,9 @@ extern const TclIntPlatStubs *tclIntPlatStubsPtr;
 #define TCL_STORAGE_CLASS DLLIMPORT
 #undef TclpLocaltime_unix
 #undef TclpGmtime_unix
+#undef TclWinConvertWSAError
+#define TclWinConvertWSAError TclWinConvertError
+
 
 #if !defined(__WIN32__) && defined(USE_TCL_STUBS)
 #   ifdef __CYGWIN__
diff --git a/generic/tclPanic.c b/generic/tclPanic.c
index 2cb8aff..7df3cb3 100644
--- a/generic/tclPanic.c
+++ b/generic/tclPanic.c
@@ -14,7 +14,7 @@
  */
 
 #include "tclInt.h"
-#ifdef _WIN32
+#if defined(_WIN32) || defined(__CYGWIN__)
     MODULE_SCOPE void tclWinDebugPanic(const char *format, ...);
 #endif
 
@@ -23,7 +23,11 @@
  * procedure.
  */
 
+#if defined(__CYGWIN__)
+static Tcl_PanicProc *panicProc = tclWinDebugPanic;
+#else
 static Tcl_PanicProc *panicProc = NULL;
+#endif
 
 /*
  *----------------------------------------------------------------------
@@ -45,7 +49,7 @@ void
 Tcl_SetPanicProc(
     Tcl_PanicProc *proc)
 {
-#ifdef _WIN32
+#if defined(_WIN32)
     /* tclWinDebugPanic only installs if there is no panicProc yet. */
     if ((proc != tclWinDebugPanic) || (panicProc == NULL))
 #endif
@@ -100,7 +104,7 @@ Tcl_PanicVA(
 	fflush(stderr);
     }
     /* In case the users panic proc does not abort, we do it here */
-#ifdef _WIN32
+#if defined(_WIN32) || defined(__CYGWIN__)
 #   if defined(__GNUC__)
     __builtin_trap();
 #   elif defined(_WIN64)
diff --git a/generic/tclStubInit.c b/generic/tclStubInit.c
index 32e9557..53b2015 100644
--- a/generic/tclStubInit.c
+++ b/generic/tclStubInit.c
@@ -42,21 +42,31 @@
 
 #ifdef __CYGWIN__
 
+/* Trick, so we don't have to include <windows.h> here, which
+ * - b.t.w. - lacks this function anyway */
+#define GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS 0x00000004
+int __stdcall GetModuleHandleExW(unsigned int, const char *, void *);
+
 #define TclWinGetPlatformId winGetPlatformId
 #define Tcl_WinUtfToTChar winUtfToTChar
 #define Tcl_WinTCharToUtf winTCharToUtf
 #define TclWinGetTclInstance winGetTclInstance
 #define TclWinNToHS winNToHS
 #define TclWinSetSockOpt winSetSockOpt
-#define TclWinAddProcess winAddProcess
 #define TclpGetTZName pGetTZName
 #define TclWinNoBackslash winNoBackslash
-#define TclWinSetInterfaces (void (*) _ANSI_ARGS_((int))) doNothing
+#define TclWinSetInterfaces (void (*) (int)) doNothing
+#define TclWinAddProcess (void (*) (void *, unsigned int)) doNothing
 #define TclWinFlushDirtyChannels doNothing
 #define TclWinResetInterfaces doNothing
 
 static Tcl_Encoding winTCharEncoding;
 
+typedef struct ThreadSpecificData {
+    char tzName[64];		/* Time zone name */
+} ThreadSpecificData;
+static Tcl_ThreadDataKey dataKey;
+
 static int
 TclWinGetPlatformId()
 {
@@ -65,38 +75,35 @@ TclWinGetPlatformId()
     return 2; /* VER_PLATFORM_WIN32_NT */;
 }
 
-static int TclWinGetTclInstance()
+static void *TclWinGetTclInstance()
 {
-	Tcl_Panic("TclWinGetTclInstance not yet implemented for CYGWIN");
-    return 0;
+    void *hInstance = NULL;
+    GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS,
+	    (const char *)&winTCharEncoding, &hInstance);
+    return hInstance;
 }
 
 static unsigned short
 TclWinNToHS(unsigned short ns)
 {
-	Tcl_Panic("TclWinNToHS not yet implemented for CYGWIN");
-    return (unsigned short) -1;
+    return ntohs(ns);
 }
+
 static int
-TclWinSetSockOpt(int s, int level, int optname,
+TclWinSetSockOpt(void *s, int level, int optname,
 	    const char *optval, int optlen)
 {
-	Tcl_Panic("TclWinSetSockOpt not yet implemented for CYGWIN");
-    return -1;
-}
-
-static void
-TclWinAddProcess(void *hProcess, unsigned long id)
-{
-	Tcl_Panic("TclWinAddProcess not yet implemented for CYGWIN");
+    return setsockopt((int) s, level, optname, optval, optlen);
 }
 
 static char *
 TclpGetTZName(int isdst)
 {
-    /* TODO: implementation */
-	Tcl_Panic("TclpGetTZName not yet implemented for CYGWIN");
-    return 0;
+    ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey);
+    const char *zone = getenv("TZ");
+    Tcl_ExternalToUtf(NULL, NULL, zone, strlen(zone), 0, NULL,
+	    tsdPtr->tzName, sizeof(tsdPtr->tzName), NULL, NULL, NULL);
+    return tsdPtr->tzName;
 }
 
 static char *
@@ -158,11 +165,12 @@ Tcl_WinTCharToUtf(
 
 #elif !defined(__WIN32__) /* UNIX and MAC */
 #   define TclWinConvertError (void (*) _ANSI_ARGS_((unsigned int))) TclGetAndDetachPids
+#   undef TclWinConvertWSAError
 #   define TclWinConvertWSAError (void (*) _ANSI_ARGS_((unsigned int))) TclpCloseFile
 #   define TclWinGetPlatformId (int (*)()) TclpCreateTempFile
-#   define TclWinGetTclInstance (int (*)()) TclpCreateProcess
+#   define TclWinGetTclInstance (void *(*)()) TclpCreateProcess
 #   define TclWinNToHS (unsigned short (*) _ANSI_ARGS_((unsigned short ns))) TclpMakeFile
-#   define TclWinSetSockOpt (int (*) _ANSI_ARGS_((int, int, int, const char *, int))) TclpOpenFile
+#   define TclWinSetSockOpt (int (*) _ANSI_ARGS_((void *, int, int, const char *, int))) TclpOpenFile
 #   define TclWinAddProcess 0
 #   define TclpGetTZName 0
 #   define TclWinNoBackslash 0