summaryrefslogtreecommitdiffstats
path: root/win/tclWinInit.c
blob: 1efc416e317af09f3db405b60eca763667affce1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
/* 
 * tclWinInit.c --
 *
 *	Contains the Windows-specific interpreter initialization functions.
 *
 * Copyright (c) 1994-1996 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * SCCS: @(#) tclWinInit.c 1.32 97/06/24 17:28:26
 */

#include "tclInt.h"
#include "tclPort.h"
#include <winreg.h>
#include <winnt.h>
#include <winbase.h>

/*
 * The following macro can be defined at compile time to specify
 * the root of the Tcl registry keys.
 */
 
#ifndef TCL_REGISTRY_KEY
#define TCL_REGISTRY_KEY "Software\\Scriptics\\Tcl\\" TCL_VERSION
#endif

/*
 * The following declaration is a workaround for some Microsoft brain damage.
 * The SYSTEM_INFO structure is different in various releases, even though the
 * layout is the same.  So we overlay our own structure on top of it so we
 * can access the interesting slots in a uniform way.
 */

typedef struct {
    WORD wProcessorArchitecture;
    WORD wReserved;
} OemId;

/*
 * The following macros are missing from some versions of winnt.h.
 */

#ifndef PROCESSOR_ARCHITECTURE_INTEL
#define PROCESSOR_ARCHITECTURE_INTEL 0
#endif
#ifndef PROCESSOR_ARCHITECTURE_MIPS
#define PROCESSOR_ARCHITECTURE_MIPS  1
#endif
#ifndef PROCESSOR_ARCHITECTURE_ALPHA
#define PROCESSOR_ARCHITECTURE_ALPHA 2
#endif
#ifndef PROCESSOR_ARCHITECTURE_PPC
#define PROCESSOR_ARCHITECTURE_PPC   3
#endif
#ifndef PROCESSOR_ARCHITECTURE_UNKNOWN
#define PROCESSOR_ARCHITECTURE_UNKNOWN 0xFFFF
#endif

/*
 * The following arrays contain the human readable strings for the Windows
 * platform and processor values.
 */


#define NUMPLATFORMS 3
static char* platforms[NUMPLATFORMS] = {
    "Win32s", "Windows 95", "Windows NT"
};

#define NUMPROCESSORS 4
static char* processors[NUMPROCESSORS] = {
    "intel", "mips", "alpha", "ppc"
};

/*
 * The Init script, tclPreInitScript variable, and the routine
 * TclSetPreInitScript (common to Windows and Unix platforms) are defined
 * in generic/tclInitScript.h
 */

#include "tclInitScript.h"


/*
 *----------------------------------------------------------------------
 *
 * TclPlatformInit --
 *
 *	Performs Windows-specific interpreter initialization related to the
 *	tcl_library variable.  Also sets up the HOME environment variable
 *	if it is not already set.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Sets "tcl_library" and "env(HOME)" Tcl variables
 *
 *----------------------------------------------------------------------
 */

void
TclPlatformInit(interp)
    Tcl_Interp *interp;
{
    char *p;
    char buffer[13];
    Tcl_DString ds;
    OSVERSIONINFO osInfo;
    SYSTEM_INFO sysInfo;
    int isWin32s;		/* True if we are running under Win32s. */
    OemId *oemId;
    HKEY key;
    DWORD size, result, type;

    tclPlatform = TCL_PLATFORM_WINDOWS;

    Tcl_DStringInit(&ds);

    /*
     * Find out what kind of system we are running on.
     */

    osInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
    GetVersionEx(&osInfo);

    isWin32s = (osInfo.dwPlatformId == VER_PLATFORM_WIN32s);

    /*
     * Since Win32s doesn't support GetSystemInfo, we use a default value.
     */

    oemId = (OemId *) &sysInfo;
    if (!isWin32s) {
	GetSystemInfo(&sysInfo);
    } else {
	oemId->wProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
    }

    /*
     * Initialize the tcl_library variable from the registry.
     */

    Tcl_SetVar(interp, "tclDefaultLibrary", "", TCL_GLOBAL_ONLY);
    if (!isWin32s) {
	result = RegOpenKeyEx(HKEY_LOCAL_MACHINE, TCL_REGISTRY_KEY, 0,
		KEY_READ, &key);
    } else {
	result = RegOpenKeyEx(HKEY_CLASSES_ROOT, TCL_REGISTRY_KEY, 0,
		KEY_READ, &key);
    }
    if (result == ERROR_SUCCESS) {
	if (RegQueryValueEx(key, "", NULL, NULL, NULL, &size)
		== ERROR_SUCCESS) {
	    char *argv[3];
	    Tcl_DStringSetLength(&ds, size);
	    RegQueryValueEx(key, "", NULL, NULL,
		    (LPBYTE) Tcl_DStringValue(&ds), &size);
	    Tcl_SetVar(interp, "tclDefaultLibrary", Tcl_DStringValue(&ds),
		    TCL_GLOBAL_ONLY);
	    argv[0] = Tcl_GetVar(interp, "tclDefaultLibrary", TCL_GLOBAL_ONLY);
	    argv[1] = "lib/tcl" TCL_VERSION;
	    argv[2] = NULL;
	    Tcl_DStringSetLength(&ds, 0);
	    Tcl_SetVar(interp, "tclDefaultLibrary",
		    Tcl_JoinPath(2, argv, &ds), TCL_GLOBAL_ONLY);
	}
	if ((RegQueryValueEx(key, "PkgPath", NULL, &type, NULL, &size)
		== ERROR_SUCCESS) && (type == REG_MULTI_SZ)) {
	    char **argv;
	    int argc;

	    /*
	     * PkgPath is stored as an array of null terminated strings
	     * terminated by two null characters.  First count the number
	     * of strings, then allocate an argv array so we can construct
	     * a valid list.
	     */

	    Tcl_DStringSetLength(&ds, size);
	    RegQueryValueEx(key, "PkgPath", NULL, NULL,
		    (LPBYTE)Tcl_DStringValue(&ds), &size);
	    argc = 0;
	    for (p = Tcl_DStringValue(&ds); *p || *(p+1);
		 p += strlen(p) + 1) {
		argc++;
	    }

	    argv = (char **) ckalloc((sizeof(char *) * argc) + 1);
	    argc = 0;
	    for (p = Tcl_DStringValue(&ds); *p || *(p+1); p++) {
		argv[argc++] = p;
		while (*p) {
		    if (*p == '\\') {
			*p = '/';
		    }
		    p++;
		}
	    }

	    p = Tcl_Merge(argc, argv);
	    Tcl_SetVar(interp, "tcl_pkgPath", p, TCL_GLOBAL_ONLY);
	    ckfree(p);
	    ckfree((char*) argv);
	} else {
	    char *argv[3];
	    argv[0] = Tcl_GetVar(interp, "tclDefaultLibrary", TCL_GLOBAL_ONLY);
	    argv[1] = "..";
	    argv[2] = NULL;
	    Tcl_DStringSetLength(&ds, 0);
	    Tcl_SetVar(interp, "tcl_pkgPath", Tcl_JoinPath(2, argv, &ds),
		    TCL_GLOBAL_ONLY|TCL_LIST_ELEMENT);
	}
    }

    /*
     * Define the tcl_platform array.
     */

    Tcl_SetVar2(interp, "tcl_platform", "platform", "windows",
	    TCL_GLOBAL_ONLY);
    if (osInfo.dwPlatformId < NUMPLATFORMS) {
	Tcl_SetVar2(interp, "tcl_platform", "os",
		platforms[osInfo.dwPlatformId], TCL_GLOBAL_ONLY);
    }
    sprintf(buffer, "%d.%d", osInfo.dwMajorVersion, osInfo.dwMinorVersion);
    Tcl_SetVar2(interp, "tcl_platform", "osVersion", buffer, TCL_GLOBAL_ONLY);
    if (oemId->wProcessorArchitecture < NUMPROCESSORS) {
	Tcl_SetVar2(interp, "tcl_platform", "machine",
		processors[oemId->wProcessorArchitecture],
		TCL_GLOBAL_ONLY);
    }

    /*
     * Set up the HOME environment variable from the HOMEDRIVE & HOMEPATH
     * environment variables, if necessary.
     */

    p = Tcl_GetVar2(interp, "env", "HOME", TCL_GLOBAL_ONLY);
    if (p == NULL) {
	Tcl_DStringSetLength(&ds, 0);
	p = Tcl_GetVar2(interp, "env", "HOMEDRIVE", TCL_GLOBAL_ONLY);
	if (p != NULL) {
	    Tcl_DStringAppend(&ds, p, -1);
	}
	p = Tcl_GetVar2(interp, "env", "HOMEPATH", TCL_GLOBAL_ONLY);
	if (p != NULL) {
	    Tcl_DStringAppend(&ds, p, -1);
	}
	if (Tcl_DStringLength(&ds) > 0) {
	    Tcl_SetVar2(interp, "env", "HOME", Tcl_DStringValue(&ds),
		    TCL_GLOBAL_ONLY);
	} else {
	    Tcl_SetVar2(interp, "env", "HOME", "c:\\", TCL_GLOBAL_ONLY);
	}
    }

    Tcl_DStringFree(&ds);
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_Init --
 *
 *	This procedure is typically invoked by Tcl_AppInit procedures
 *	to perform additional initialization for a Tcl interpreter,
 *	such as sourcing the "init.tcl" script.
 *
 * Results:
 *	Returns a standard Tcl completion code and sets interp->result
 *	if there is an error.
 *
 * Side effects:
 *	Depends on what's in the init.tcl script.
 *
 *----------------------------------------------------------------------
 */

int
Tcl_Init(interp)
    Tcl_Interp *interp;		/* Interpreter to initialize. */
{
    if (tclPreInitScript != NULL) {
	if (Tcl_Eval(interp, tclPreInitScript) == TCL_ERROR) {
	    return (TCL_ERROR);
	};
    }
    return(Tcl_Eval(interp, initScript));
}

/*
 *----------------------------------------------------------------------
 *
 * TclWinGetPlatform --
 *
 *	This is a kludge that allows the test library to get access
 *	the internal tclPlatform variable.
 *
 * Results:
 *	Returns a pointer to the tclPlatform variable.
 *
 * Side effects:
 *	None.
 *
 *----------------------------------------------------------------------
 */

TclPlatformType *
TclWinGetPlatform()
{
    return &tclPlatform;
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_SourceRCFile --
 *
 *	This procedure is typically invoked by Tcl_Main of Tk_Main
 *	procedure to source an application specific rc file into the
 *	interpreter at startup time.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Depends on what's in the rc script.
 *
 *----------------------------------------------------------------------
 */

void
Tcl_SourceRCFile(interp)
    Tcl_Interp *interp;		/* Interpreter to source rc file into. */
{
    Tcl_DString temp;
    char *fileName;
    Tcl_Channel errChannel;

    fileName = Tcl_GetVar(interp, "tcl_rcFileName", TCL_GLOBAL_ONLY);

    if (fileName != NULL) {
        Tcl_Channel c;
	char *fullName;

        Tcl_DStringInit(&temp);
	fullName = Tcl_TranslateFileName(interp, fileName, &temp);
	if (fullName == NULL) {
	    /*
	     * Couldn't translate the file name (e.g. it referred to a
	     * bogus user or there was no HOME environment variable).
	     * Just do nothing.
	     */
	} else {

	    /*
	     * Test for the existence of the rc file before trying to read it.
	     */

            c = Tcl_OpenFileChannel(NULL, fullName, "r", 0);
            if (c != (Tcl_Channel) NULL) {
                Tcl_Close(NULL, c);
		if (Tcl_EvalFile(interp, fullName) != TCL_OK) {
		    errChannel = Tcl_GetStdChannel(TCL_STDERR);
		    if (errChannel) {
			Tcl_Write(errChannel, interp->result, -1);
			Tcl_Write(errChannel, "\n", 1);
		    }
		}
	    }
	}
        Tcl_DStringFree(&temp);
    }
}