/*
|
/*
|
* tclLoad.c --
|
* tclLoad.c --
|
*
|
*
|
* This file provides the generic portion (those that are the same
|
* This file provides the generic portion (those that are the same
|
* on all platforms) of Tcl's dynamic loading facilities.
|
* on all platforms) of Tcl's dynamic loading facilities.
|
*
|
*
|
* Copyright (c) 1995 Sun Microsystems, Inc.
|
* Copyright (c) 1995 Sun Microsystems, Inc.
|
*
|
*
|
* See the file "license.terms" for information on usage and redistribution
|
* See the file "license.terms" for information on usage and redistribution
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
*
|
*
|
* RCS: @(#) $Id: tclLoad.c,v 1.1.1.1 2002-01-16 10:25:28 markom Exp $
|
* RCS: @(#) $Id: tclLoad.c,v 1.1.1.1 2002-01-16 10:25:28 markom Exp $
|
*/
|
*/
|
|
|
#include "tclInt.h"
|
#include "tclInt.h"
|
|
|
/*
|
/*
|
* The following structure describes a package that has been loaded
|
* The following structure describes a package that has been loaded
|
* either dynamically (with the "load" command) or statically (as
|
* either dynamically (with the "load" command) or statically (as
|
* indicated by a call to Tcl_PackageLoaded). All such packages
|
* indicated by a call to Tcl_PackageLoaded). All such packages
|
* are linked together into a single list for the process. Packages
|
* are linked together into a single list for the process. Packages
|
* are never unloaded, so these structures are never freed.
|
* are never unloaded, so these structures are never freed.
|
*/
|
*/
|
|
|
typedef struct LoadedPackage {
|
typedef struct LoadedPackage {
|
char *fileName; /* Name of the file from which the
|
char *fileName; /* Name of the file from which the
|
* package was loaded. An empty string
|
* package was loaded. An empty string
|
* means the package is loaded statically.
|
* means the package is loaded statically.
|
* Malloc-ed. */
|
* Malloc-ed. */
|
char *packageName; /* Name of package prefix for the package,
|
char *packageName; /* Name of package prefix for the package,
|
* properly capitalized (first letter UC,
|
* properly capitalized (first letter UC,
|
* others LC), no "_", as in "Net".
|
* others LC), no "_", as in "Net".
|
* Malloc-ed. */
|
* Malloc-ed. */
|
Tcl_PackageInitProc *initProc;
|
Tcl_PackageInitProc *initProc;
|
/* Initialization procedure to call to
|
/* Initialization procedure to call to
|
* incorporate this package into a trusted
|
* incorporate this package into a trusted
|
* interpreter. */
|
* interpreter. */
|
Tcl_PackageInitProc *safeInitProc;
|
Tcl_PackageInitProc *safeInitProc;
|
/* Initialization procedure to call to
|
/* Initialization procedure to call to
|
* incorporate this package into a safe
|
* incorporate this package into a safe
|
* interpreter (one that will execute
|
* interpreter (one that will execute
|
* untrusted scripts). NULL means the
|
* untrusted scripts). NULL means the
|
* package can't be used in unsafe
|
* package can't be used in unsafe
|
* interpreters. */
|
* interpreters. */
|
struct LoadedPackage *nextPtr;
|
struct LoadedPackage *nextPtr;
|
/* Next in list of all packages loaded into
|
/* Next in list of all packages loaded into
|
* this application process. NULL means
|
* this application process. NULL means
|
* end of list. */
|
* end of list. */
|
} LoadedPackage;
|
} LoadedPackage;
|
|
|
static LoadedPackage *firstPackagePtr = NULL;
|
static LoadedPackage *firstPackagePtr = NULL;
|
/* First in list of all packages loaded into
|
/* First in list of all packages loaded into
|
* this process. */
|
* this process. */
|
|
|
/*
|
/*
|
* The following structure represents a particular package that has
|
* The following structure represents a particular package that has
|
* been incorporated into a particular interpreter (by calling its
|
* been incorporated into a particular interpreter (by calling its
|
* initialization procedure). There is a list of these structures for
|
* initialization procedure). There is a list of these structures for
|
* each interpreter, with an AssocData value (key "load") for the
|
* each interpreter, with an AssocData value (key "load") for the
|
* interpreter that points to the first package (if any).
|
* interpreter that points to the first package (if any).
|
*/
|
*/
|
|
|
typedef struct InterpPackage {
|
typedef struct InterpPackage {
|
LoadedPackage *pkgPtr; /* Points to detailed information about
|
LoadedPackage *pkgPtr; /* Points to detailed information about
|
* package. */
|
* package. */
|
struct InterpPackage *nextPtr;
|
struct InterpPackage *nextPtr;
|
/* Next package in this interpreter, or
|
/* Next package in this interpreter, or
|
* NULL for end of list. */
|
* NULL for end of list. */
|
} InterpPackage;
|
} InterpPackage;
|
|
|
/*
|
/*
|
* Prototypes for procedures that are private to this file:
|
* Prototypes for procedures that are private to this file:
|
*/
|
*/
|
|
|
static void LoadCleanupProc _ANSI_ARGS_((ClientData clientData,
|
static void LoadCleanupProc _ANSI_ARGS_((ClientData clientData,
|
Tcl_Interp *interp));
|
Tcl_Interp *interp));
|
static void LoadExitProc _ANSI_ARGS_((ClientData clientData));
|
static void LoadExitProc _ANSI_ARGS_((ClientData clientData));
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* Tcl_LoadCmd --
|
* Tcl_LoadCmd --
|
*
|
*
|
* This procedure is invoked to process the "load" Tcl command.
|
* This procedure is invoked to process the "load" Tcl command.
|
* See the user documentation for details on what it does.
|
* See the user documentation for details on what it does.
|
*
|
*
|
* Results:
|
* Results:
|
* A standard Tcl result.
|
* A standard Tcl result.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* See the user documentation.
|
* See the user documentation.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
Tcl_LoadCmd(dummy, interp, argc, argv)
|
Tcl_LoadCmd(dummy, interp, argc, argv)
|
ClientData dummy; /* Not used. */
|
ClientData dummy; /* Not used. */
|
Tcl_Interp *interp; /* Current interpreter. */
|
Tcl_Interp *interp; /* Current interpreter. */
|
int argc; /* Number of arguments. */
|
int argc; /* Number of arguments. */
|
char **argv; /* Argument strings. */
|
char **argv; /* Argument strings. */
|
{
|
{
|
Tcl_Interp *target;
|
Tcl_Interp *target;
|
LoadedPackage *pkgPtr, *defaultPtr;
|
LoadedPackage *pkgPtr, *defaultPtr;
|
Tcl_DString pkgName, initName, safeInitName, fileName;
|
Tcl_DString pkgName, initName, safeInitName, fileName;
|
Tcl_PackageInitProc *initProc, *safeInitProc;
|
Tcl_PackageInitProc *initProc, *safeInitProc;
|
InterpPackage *ipFirstPtr, *ipPtr;
|
InterpPackage *ipFirstPtr, *ipPtr;
|
int code, c, gotPkgName, namesMatch, filesMatch;
|
int code, c, gotPkgName, namesMatch, filesMatch;
|
char *p, *fullFileName, *p1, *p2;
|
char *p, *fullFileName, *p1, *p2;
|
|
|
if ((argc < 2) || (argc > 4)) {
|
if ((argc < 2) || (argc > 4)) {
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
Tcl_AppendResult(interp, "wrong # args: should be \"", argv[0],
|
" fileName ?packageName? ?interp?\"", (char *) NULL);
|
" fileName ?packageName? ?interp?\"", (char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
fullFileName = Tcl_TranslateFileName(interp, argv[1], &fileName);
|
fullFileName = Tcl_TranslateFileName(interp, argv[1], &fileName);
|
if (fullFileName == NULL) {
|
if (fullFileName == NULL) {
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
Tcl_DStringInit(&pkgName);
|
Tcl_DStringInit(&pkgName);
|
Tcl_DStringInit(&initName);
|
Tcl_DStringInit(&initName);
|
Tcl_DStringInit(&safeInitName);
|
Tcl_DStringInit(&safeInitName);
|
if ((argc >= 3) && (argv[2][0] != 0)) {
|
if ((argc >= 3) && (argv[2][0] != 0)) {
|
gotPkgName = 1;
|
gotPkgName = 1;
|
} else {
|
} else {
|
gotPkgName = 0;
|
gotPkgName = 0;
|
}
|
}
|
if ((fullFileName[0] == 0) && !gotPkgName) {
|
if ((fullFileName[0] == 0) && !gotPkgName) {
|
Tcl_SetResult(interp,
|
Tcl_SetResult(interp,
|
"must specify either file name or package name",
|
"must specify either file name or package name",
|
TCL_STATIC);
|
TCL_STATIC);
|
code = TCL_ERROR;
|
code = TCL_ERROR;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
/*
|
/*
|
* Figure out which interpreter we're going to load the package into.
|
* Figure out which interpreter we're going to load the package into.
|
*/
|
*/
|
|
|
target = interp;
|
target = interp;
|
if (argc == 4) {
|
if (argc == 4) {
|
target = Tcl_GetSlave(interp, argv[3]);
|
target = Tcl_GetSlave(interp, argv[3]);
|
if (target == NULL) {
|
if (target == NULL) {
|
Tcl_AppendResult(interp, "couldn't find slave interpreter named \"",
|
Tcl_AppendResult(interp, "couldn't find slave interpreter named \"",
|
argv[3], "\"", (char *) NULL);
|
argv[3], "\"", (char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Scan through the packages that are currently loaded to see if the
|
* Scan through the packages that are currently loaded to see if the
|
* package we want is already loaded. We'll use a loaded package if
|
* package we want is already loaded. We'll use a loaded package if
|
* it meets any of the following conditions:
|
* it meets any of the following conditions:
|
* - Its name and file match the once we're looking for.
|
* - Its name and file match the once we're looking for.
|
* - Its file matches, and we weren't given a name.
|
* - Its file matches, and we weren't given a name.
|
* - Its name matches, the file name was specified as empty, and there
|
* - Its name matches, the file name was specified as empty, and there
|
* is only no statically loaded package with the same name.
|
* is only no statically loaded package with the same name.
|
*/
|
*/
|
|
|
defaultPtr = NULL;
|
defaultPtr = NULL;
|
for (pkgPtr = firstPackagePtr; pkgPtr != NULL; pkgPtr = pkgPtr->nextPtr) {
|
for (pkgPtr = firstPackagePtr; pkgPtr != NULL; pkgPtr = pkgPtr->nextPtr) {
|
if (!gotPkgName) {
|
if (!gotPkgName) {
|
namesMatch = 0;
|
namesMatch = 0;
|
} else {
|
} else {
|
namesMatch = 1;
|
namesMatch = 1;
|
for (p1 = argv[2], p2 = pkgPtr->packageName; ; p1++, p2++) {
|
for (p1 = argv[2], p2 = pkgPtr->packageName; ; p1++, p2++) {
|
if ((isupper(UCHAR(*p1)) ? tolower(UCHAR(*p1)) : *p1)
|
if ((isupper(UCHAR(*p1)) ? tolower(UCHAR(*p1)) : *p1)
|
!= (isupper(UCHAR(*p2)) ? tolower(UCHAR(*p2)) : *p2)) {
|
!= (isupper(UCHAR(*p2)) ? tolower(UCHAR(*p2)) : *p2)) {
|
namesMatch = 0;
|
namesMatch = 0;
|
break;
|
break;
|
}
|
}
|
if (*p1 == 0) {
|
if (*p1 == 0) {
|
break;
|
break;
|
}
|
}
|
}
|
}
|
}
|
}
|
filesMatch = (strcmp(pkgPtr->fileName, fullFileName) == 0);
|
filesMatch = (strcmp(pkgPtr->fileName, fullFileName) == 0);
|
if (filesMatch && (namesMatch || !gotPkgName)) {
|
if (filesMatch && (namesMatch || !gotPkgName)) {
|
break;
|
break;
|
}
|
}
|
if (namesMatch && (fullFileName[0] == 0)) {
|
if (namesMatch && (fullFileName[0] == 0)) {
|
defaultPtr = pkgPtr;
|
defaultPtr = pkgPtr;
|
}
|
}
|
if (filesMatch && !namesMatch && (fullFileName[0] != 0)) {
|
if (filesMatch && !namesMatch && (fullFileName[0] != 0)) {
|
/*
|
/*
|
* Can't have two different packages loaded from the same
|
* Can't have two different packages loaded from the same
|
* file.
|
* file.
|
*/
|
*/
|
|
|
Tcl_AppendResult(interp, "file \"", fullFileName,
|
Tcl_AppendResult(interp, "file \"", fullFileName,
|
"\" is already loaded for package \"",
|
"\" is already loaded for package \"",
|
pkgPtr->packageName, "\"", (char *) NULL);
|
pkgPtr->packageName, "\"", (char *) NULL);
|
code = TCL_ERROR;
|
code = TCL_ERROR;
|
goto done;
|
goto done;
|
}
|
}
|
}
|
}
|
if (pkgPtr == NULL) {
|
if (pkgPtr == NULL) {
|
pkgPtr = defaultPtr;
|
pkgPtr = defaultPtr;
|
}
|
}
|
|
|
/*
|
/*
|
* Scan through the list of packages already loaded in the target
|
* Scan through the list of packages already loaded in the target
|
* interpreter. If the package we want is already loaded there,
|
* interpreter. If the package we want is already loaded there,
|
* then there's nothing for us to to.
|
* then there's nothing for us to to.
|
*/
|
*/
|
|
|
if (pkgPtr != NULL) {
|
if (pkgPtr != NULL) {
|
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
|
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
|
(Tcl_InterpDeleteProc **) NULL);
|
(Tcl_InterpDeleteProc **) NULL);
|
for (ipPtr = ipFirstPtr; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
|
for (ipPtr = ipFirstPtr; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
|
if (ipPtr->pkgPtr == pkgPtr) {
|
if (ipPtr->pkgPtr == pkgPtr) {
|
code = TCL_OK;
|
code = TCL_OK;
|
goto done;
|
goto done;
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
if (pkgPtr == NULL) {
|
if (pkgPtr == NULL) {
|
/*
|
/*
|
* The desired file isn't currently loaded, so load it. It's an
|
* The desired file isn't currently loaded, so load it. It's an
|
* error if the desired package is a static one.
|
* error if the desired package is a static one.
|
*/
|
*/
|
|
|
if (fullFileName[0] == 0) {
|
if (fullFileName[0] == 0) {
|
Tcl_AppendResult(interp, "package \"", argv[2],
|
Tcl_AppendResult(interp, "package \"", argv[2],
|
"\" isn't loaded statically", (char *) NULL);
|
"\" isn't loaded statically", (char *) NULL);
|
code = TCL_ERROR;
|
code = TCL_ERROR;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
/*
|
/*
|
* Figure out the module name if it wasn't provided explicitly.
|
* Figure out the module name if it wasn't provided explicitly.
|
*/
|
*/
|
|
|
if (gotPkgName) {
|
if (gotPkgName) {
|
Tcl_DStringAppend(&pkgName, argv[2], -1);
|
Tcl_DStringAppend(&pkgName, argv[2], -1);
|
} else {
|
} else {
|
if (!TclGuessPackageName(fullFileName, &pkgName)) {
|
if (!TclGuessPackageName(fullFileName, &pkgName)) {
|
int pargc;
|
int pargc;
|
char **pargv, *pkgGuess;
|
char **pargv, *pkgGuess;
|
|
|
/*
|
/*
|
* The platform-specific code couldn't figure out the
|
* The platform-specific code couldn't figure out the
|
* module name. Make a guess by taking the last element
|
* module name. Make a guess by taking the last element
|
* of the file name, stripping off any leading "lib",
|
* of the file name, stripping off any leading "lib",
|
* and then using all of the alphabetic and underline
|
* and then using all of the alphabetic and underline
|
* characters that follow that.
|
* characters that follow that.
|
*/
|
*/
|
|
|
Tcl_SplitPath(fullFileName, &pargc, &pargv);
|
Tcl_SplitPath(fullFileName, &pargc, &pargv);
|
pkgGuess = pargv[pargc-1];
|
pkgGuess = pargv[pargc-1];
|
if ((pkgGuess[0] == 'l') && (pkgGuess[1] == 'i')
|
if ((pkgGuess[0] == 'l') && (pkgGuess[1] == 'i')
|
&& (pkgGuess[2] == 'b')) {
|
&& (pkgGuess[2] == 'b')) {
|
pkgGuess += 3;
|
pkgGuess += 3;
|
}
|
}
|
for (p = pkgGuess; isalpha(UCHAR(*p)) || (*p == '_'); p++) {
|
for (p = pkgGuess; isalpha(UCHAR(*p)) || (*p == '_'); p++) {
|
/* Empty loop body. */
|
/* Empty loop body. */
|
}
|
}
|
if (p == pkgGuess) {
|
if (p == pkgGuess) {
|
ckfree((char *)pargv);
|
ckfree((char *)pargv);
|
Tcl_AppendResult(interp,
|
Tcl_AppendResult(interp,
|
"couldn't figure out package name for ",
|
"couldn't figure out package name for ",
|
fullFileName, (char *) NULL);
|
fullFileName, (char *) NULL);
|
code = TCL_ERROR;
|
code = TCL_ERROR;
|
goto done;
|
goto done;
|
}
|
}
|
Tcl_DStringAppend(&pkgName, pkgGuess, (p - pkgGuess));
|
Tcl_DStringAppend(&pkgName, pkgGuess, (p - pkgGuess));
|
ckfree((char *)pargv);
|
ckfree((char *)pargv);
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Fix the capitalization in the package name so that the first
|
* Fix the capitalization in the package name so that the first
|
* character is in caps but the others are all lower-case.
|
* character is in caps but the others are all lower-case.
|
*/
|
*/
|
|
|
p = Tcl_DStringValue(&pkgName);
|
p = Tcl_DStringValue(&pkgName);
|
c = UCHAR(*p);
|
c = UCHAR(*p);
|
if (c != 0) {
|
if (c != 0) {
|
if (islower(c)) {
|
if (islower(c)) {
|
*p = (char) toupper(c);
|
*p = (char) toupper(c);
|
}
|
}
|
p++;
|
p++;
|
while (1) {
|
while (1) {
|
c = UCHAR(*p);
|
c = UCHAR(*p);
|
if (c == 0) {
|
if (c == 0) {
|
break;
|
break;
|
}
|
}
|
if (isupper(c)) {
|
if (isupper(c)) {
|
*p = (char) tolower(c);
|
*p = (char) tolower(c);
|
}
|
}
|
p++;
|
p++;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
* Compute the names of the two initialization procedures,
|
* Compute the names of the two initialization procedures,
|
* based on the package name.
|
* based on the package name.
|
*/
|
*/
|
|
|
Tcl_DStringAppend(&initName, Tcl_DStringValue(&pkgName), -1);
|
Tcl_DStringAppend(&initName, Tcl_DStringValue(&pkgName), -1);
|
Tcl_DStringAppend(&initName, "_Init", 5);
|
Tcl_DStringAppend(&initName, "_Init", 5);
|
Tcl_DStringAppend(&safeInitName, Tcl_DStringValue(&pkgName), -1);
|
Tcl_DStringAppend(&safeInitName, Tcl_DStringValue(&pkgName), -1);
|
Tcl_DStringAppend(&safeInitName, "_SafeInit", 9);
|
Tcl_DStringAppend(&safeInitName, "_SafeInit", 9);
|
|
|
/*
|
/*
|
* Call platform-specific code to load the package and find the
|
* Call platform-specific code to load the package and find the
|
* two initialization procedures.
|
* two initialization procedures.
|
*/
|
*/
|
|
|
code = TclLoadFile(interp, fullFileName, Tcl_DStringValue(&initName),
|
code = TclLoadFile(interp, fullFileName, Tcl_DStringValue(&initName),
|
Tcl_DStringValue(&safeInitName), &initProc, &safeInitProc);
|
Tcl_DStringValue(&safeInitName), &initProc, &safeInitProc);
|
if (code != TCL_OK) {
|
if (code != TCL_OK) {
|
goto done;
|
goto done;
|
}
|
}
|
if (initProc == NULL) {
|
if (initProc == NULL) {
|
Tcl_AppendResult(interp, "couldn't find procedure ",
|
Tcl_AppendResult(interp, "couldn't find procedure ",
|
Tcl_DStringValue(&initName), (char *) NULL);
|
Tcl_DStringValue(&initName), (char *) NULL);
|
code = TCL_ERROR;
|
code = TCL_ERROR;
|
goto done;
|
goto done;
|
}
|
}
|
|
|
/*
|
/*
|
* Create a new record to describe this package.
|
* Create a new record to describe this package.
|
*/
|
*/
|
|
|
if (firstPackagePtr == NULL) {
|
if (firstPackagePtr == NULL) {
|
Tcl_CreateExitHandler(LoadExitProc, (ClientData) NULL);
|
Tcl_CreateExitHandler(LoadExitProc, (ClientData) NULL);
|
}
|
}
|
pkgPtr = (LoadedPackage *) ckalloc(sizeof(LoadedPackage));
|
pkgPtr = (LoadedPackage *) ckalloc(sizeof(LoadedPackage));
|
pkgPtr->fileName = (char *) ckalloc((unsigned)
|
pkgPtr->fileName = (char *) ckalloc((unsigned)
|
(strlen(fullFileName) + 1));
|
(strlen(fullFileName) + 1));
|
strcpy(pkgPtr->fileName, fullFileName);
|
strcpy(pkgPtr->fileName, fullFileName);
|
pkgPtr->packageName = (char *) ckalloc((unsigned)
|
pkgPtr->packageName = (char *) ckalloc((unsigned)
|
(Tcl_DStringLength(&pkgName) + 1));
|
(Tcl_DStringLength(&pkgName) + 1));
|
strcpy(pkgPtr->packageName, Tcl_DStringValue(&pkgName));
|
strcpy(pkgPtr->packageName, Tcl_DStringValue(&pkgName));
|
pkgPtr->initProc = initProc;
|
pkgPtr->initProc = initProc;
|
pkgPtr->safeInitProc = safeInitProc;
|
pkgPtr->safeInitProc = safeInitProc;
|
pkgPtr->nextPtr = firstPackagePtr;
|
pkgPtr->nextPtr = firstPackagePtr;
|
firstPackagePtr = pkgPtr;
|
firstPackagePtr = pkgPtr;
|
}
|
}
|
|
|
/*
|
/*
|
* Invoke the package's initialization procedure (either the
|
* Invoke the package's initialization procedure (either the
|
* normal one or the safe one, depending on whether or not the
|
* normal one or the safe one, depending on whether or not the
|
* interpreter is safe).
|
* interpreter is safe).
|
*/
|
*/
|
|
|
if (Tcl_IsSafe(target)) {
|
if (Tcl_IsSafe(target)) {
|
if (pkgPtr->safeInitProc != NULL) {
|
if (pkgPtr->safeInitProc != NULL) {
|
code = (*pkgPtr->safeInitProc)(target);
|
code = (*pkgPtr->safeInitProc)(target);
|
} else {
|
} else {
|
Tcl_AppendResult(interp,
|
Tcl_AppendResult(interp,
|
"can't use package in a safe interpreter: ",
|
"can't use package in a safe interpreter: ",
|
"no ", pkgPtr->packageName, "_SafeInit procedure",
|
"no ", pkgPtr->packageName, "_SafeInit procedure",
|
(char *) NULL);
|
(char *) NULL);
|
code = TCL_ERROR;
|
code = TCL_ERROR;
|
goto done;
|
goto done;
|
}
|
}
|
} else {
|
} else {
|
code = (*pkgPtr->initProc)(target);
|
code = (*pkgPtr->initProc)(target);
|
}
|
}
|
if ((code == TCL_ERROR) && (target != interp)) {
|
if ((code == TCL_ERROR) && (target != interp)) {
|
/*
|
/*
|
* An error occurred, so transfer error information from the
|
* An error occurred, so transfer error information from the
|
* destination interpreter back to our interpreter. Must clear
|
* destination interpreter back to our interpreter. Must clear
|
* interp's result before calling Tcl_AddErrorInfo, since
|
* interp's result before calling Tcl_AddErrorInfo, since
|
* Tcl_AddErrorInfo will store the interp's result in errorInfo
|
* Tcl_AddErrorInfo will store the interp's result in errorInfo
|
* before appending target's $errorInfo; we've already got
|
* before appending target's $errorInfo; we've already got
|
* everything we need in target's $errorInfo.
|
* everything we need in target's $errorInfo.
|
*/
|
*/
|
|
|
/*
|
/*
|
* It is (abusively) assumed that errorInfo and errorCode vars exists.
|
* It is (abusively) assumed that errorInfo and errorCode vars exists.
|
* we changed SetVar2 to accept NULL values to avoid crashes. --dl
|
* we changed SetVar2 to accept NULL values to avoid crashes. --dl
|
*/
|
*/
|
Tcl_ResetResult(interp);
|
Tcl_ResetResult(interp);
|
Tcl_AddErrorInfo(interp, Tcl_GetVar2(target,
|
Tcl_AddErrorInfo(interp, Tcl_GetVar2(target,
|
"errorInfo", (char *) NULL, TCL_GLOBAL_ONLY));
|
"errorInfo", (char *) NULL, TCL_GLOBAL_ONLY));
|
Tcl_SetVar2(interp, "errorCode", (char *) NULL,
|
Tcl_SetVar2(interp, "errorCode", (char *) NULL,
|
Tcl_GetVar2(target, "errorCode", (char *) NULL,
|
Tcl_GetVar2(target, "errorCode", (char *) NULL,
|
TCL_GLOBAL_ONLY), TCL_GLOBAL_ONLY);
|
TCL_GLOBAL_ONLY), TCL_GLOBAL_ONLY);
|
Tcl_SetResult(interp, target->result, TCL_VOLATILE);
|
Tcl_SetResult(interp, target->result, TCL_VOLATILE);
|
}
|
}
|
|
|
/*
|
/*
|
* Record the fact that the package has been loaded in the
|
* Record the fact that the package has been loaded in the
|
* target interpreter.
|
* target interpreter.
|
*/
|
*/
|
|
|
if (code == TCL_OK) {
|
if (code == TCL_OK) {
|
/*
|
/*
|
* Refetch ipFirstPtr: loading the package may have introduced
|
* Refetch ipFirstPtr: loading the package may have introduced
|
* additional static packages at the head of the linked list!
|
* additional static packages at the head of the linked list!
|
*/
|
*/
|
|
|
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
|
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
|
(Tcl_InterpDeleteProc **) NULL);
|
(Tcl_InterpDeleteProc **) NULL);
|
ipPtr = (InterpPackage *) ckalloc(sizeof(InterpPackage));
|
ipPtr = (InterpPackage *) ckalloc(sizeof(InterpPackage));
|
ipPtr->pkgPtr = pkgPtr;
|
ipPtr->pkgPtr = pkgPtr;
|
ipPtr->nextPtr = ipFirstPtr;
|
ipPtr->nextPtr = ipFirstPtr;
|
Tcl_SetAssocData(target, "tclLoad", LoadCleanupProc,
|
Tcl_SetAssocData(target, "tclLoad", LoadCleanupProc,
|
(ClientData) ipPtr);
|
(ClientData) ipPtr);
|
}
|
}
|
|
|
done:
|
done:
|
Tcl_DStringFree(&pkgName);
|
Tcl_DStringFree(&pkgName);
|
Tcl_DStringFree(&initName);
|
Tcl_DStringFree(&initName);
|
Tcl_DStringFree(&safeInitName);
|
Tcl_DStringFree(&safeInitName);
|
Tcl_DStringFree(&fileName);
|
Tcl_DStringFree(&fileName);
|
return code;
|
return code;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* Tcl_StaticPackage --
|
* Tcl_StaticPackage --
|
*
|
*
|
* This procedure is invoked to indicate that a particular
|
* This procedure is invoked to indicate that a particular
|
* package has been linked statically with an application.
|
* package has been linked statically with an application.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Once this procedure completes, the package becomes loadable
|
* Once this procedure completes, the package becomes loadable
|
* via the "load" command with an empty file name.
|
* via the "load" command with an empty file name.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
void
|
void
|
Tcl_StaticPackage(interp, pkgName, initProc, safeInitProc)
|
Tcl_StaticPackage(interp, pkgName, initProc, safeInitProc)
|
Tcl_Interp *interp; /* If not NULL, it means that the
|
Tcl_Interp *interp; /* If not NULL, it means that the
|
* package has already been loaded
|
* package has already been loaded
|
* into the given interpreter by
|
* into the given interpreter by
|
* calling the appropriate init proc. */
|
* calling the appropriate init proc. */
|
char *pkgName; /* Name of package (must be properly
|
char *pkgName; /* Name of package (must be properly
|
* capitalized: first letter upper
|
* capitalized: first letter upper
|
* case, others lower case). */
|
* case, others lower case). */
|
Tcl_PackageInitProc *initProc; /* Procedure to call to incorporate
|
Tcl_PackageInitProc *initProc; /* Procedure to call to incorporate
|
* this package into a trusted
|
* this package into a trusted
|
* interpreter. */
|
* interpreter. */
|
Tcl_PackageInitProc *safeInitProc; /* Procedure to call to incorporate
|
Tcl_PackageInitProc *safeInitProc; /* Procedure to call to incorporate
|
* this package into a safe interpreter
|
* this package into a safe interpreter
|
* (one that will execute untrusted
|
* (one that will execute untrusted
|
* scripts). NULL means the package
|
* scripts). NULL means the package
|
* can't be used in safe
|
* can't be used in safe
|
* interpreters. */
|
* interpreters. */
|
{
|
{
|
LoadedPackage *pkgPtr;
|
LoadedPackage *pkgPtr;
|
InterpPackage *ipPtr, *ipFirstPtr;
|
InterpPackage *ipPtr, *ipFirstPtr;
|
|
|
/*
|
/*
|
* Check to see if someone else has already reported this package as
|
* Check to see if someone else has already reported this package as
|
* statically loaded. If this call is redundant then just return.
|
* statically loaded. If this call is redundant then just return.
|
*/
|
*/
|
|
|
for (pkgPtr = firstPackagePtr; pkgPtr != NULL; pkgPtr = pkgPtr->nextPtr) {
|
for (pkgPtr = firstPackagePtr; pkgPtr != NULL; pkgPtr = pkgPtr->nextPtr) {
|
if ((pkgPtr->initProc == initProc)
|
if ((pkgPtr->initProc == initProc)
|
&& (pkgPtr->safeInitProc == safeInitProc)
|
&& (pkgPtr->safeInitProc == safeInitProc)
|
&& (strcmp(pkgPtr->packageName, pkgName) == 0)) {
|
&& (strcmp(pkgPtr->packageName, pkgName) == 0)) {
|
return;
|
return;
|
}
|
}
|
}
|
}
|
|
|
if (firstPackagePtr == NULL) {
|
if (firstPackagePtr == NULL) {
|
Tcl_CreateExitHandler(LoadExitProc, (ClientData) NULL);
|
Tcl_CreateExitHandler(LoadExitProc, (ClientData) NULL);
|
}
|
}
|
pkgPtr = (LoadedPackage *) ckalloc(sizeof(LoadedPackage));
|
pkgPtr = (LoadedPackage *) ckalloc(sizeof(LoadedPackage));
|
pkgPtr->fileName = (char *) ckalloc((unsigned) 1);
|
pkgPtr->fileName = (char *) ckalloc((unsigned) 1);
|
pkgPtr->fileName[0] = 0;
|
pkgPtr->fileName[0] = 0;
|
pkgPtr->packageName = (char *) ckalloc((unsigned)
|
pkgPtr->packageName = (char *) ckalloc((unsigned)
|
(strlen(pkgName) + 1));
|
(strlen(pkgName) + 1));
|
strcpy(pkgPtr->packageName, pkgName);
|
strcpy(pkgPtr->packageName, pkgName);
|
pkgPtr->initProc = initProc;
|
pkgPtr->initProc = initProc;
|
pkgPtr->safeInitProc = safeInitProc;
|
pkgPtr->safeInitProc = safeInitProc;
|
pkgPtr->nextPtr = firstPackagePtr;
|
pkgPtr->nextPtr = firstPackagePtr;
|
firstPackagePtr = pkgPtr;
|
firstPackagePtr = pkgPtr;
|
|
|
if (interp != NULL) {
|
if (interp != NULL) {
|
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(interp, "tclLoad",
|
ipFirstPtr = (InterpPackage *) Tcl_GetAssocData(interp, "tclLoad",
|
(Tcl_InterpDeleteProc **) NULL);
|
(Tcl_InterpDeleteProc **) NULL);
|
ipPtr = (InterpPackage *) ckalloc(sizeof(InterpPackage));
|
ipPtr = (InterpPackage *) ckalloc(sizeof(InterpPackage));
|
ipPtr->pkgPtr = pkgPtr;
|
ipPtr->pkgPtr = pkgPtr;
|
ipPtr->nextPtr = ipFirstPtr;
|
ipPtr->nextPtr = ipFirstPtr;
|
Tcl_SetAssocData(interp, "tclLoad", LoadCleanupProc,
|
Tcl_SetAssocData(interp, "tclLoad", LoadCleanupProc,
|
(ClientData) ipPtr);
|
(ClientData) ipPtr);
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* TclGetLoadedPackages --
|
* TclGetLoadedPackages --
|
*
|
*
|
* This procedure returns information about all of the files
|
* This procedure returns information about all of the files
|
* that are loaded (either in a particular intepreter, or
|
* that are loaded (either in a particular intepreter, or
|
* for all interpreters).
|
* for all interpreters).
|
*
|
*
|
* Results:
|
* Results:
|
* The return value is a standard Tcl completion code. If
|
* The return value is a standard Tcl completion code. If
|
* successful, a list of lists is placed in interp->result.
|
* successful, a list of lists is placed in interp->result.
|
* Each sublist corresponds to one loaded file; its first
|
* Each sublist corresponds to one loaded file; its first
|
* element is the name of the file (or an empty string for
|
* element is the name of the file (or an empty string for
|
* something that's statically loaded) and the second element
|
* something that's statically loaded) and the second element
|
* is the name of the package in that file.
|
* is the name of the package in that file.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* None.
|
* None.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
int
|
int
|
TclGetLoadedPackages(interp, targetName)
|
TclGetLoadedPackages(interp, targetName)
|
Tcl_Interp *interp; /* Interpreter in which to return
|
Tcl_Interp *interp; /* Interpreter in which to return
|
* information or error message. */
|
* information or error message. */
|
char *targetName; /* Name of target interpreter or NULL.
|
char *targetName; /* Name of target interpreter or NULL.
|
* If NULL, return info about all interps;
|
* If NULL, return info about all interps;
|
* otherwise, just return info about this
|
* otherwise, just return info about this
|
* interpreter. */
|
* interpreter. */
|
{
|
{
|
Tcl_Interp *target;
|
Tcl_Interp *target;
|
LoadedPackage *pkgPtr;
|
LoadedPackage *pkgPtr;
|
InterpPackage *ipPtr;
|
InterpPackage *ipPtr;
|
char *prefix;
|
char *prefix;
|
|
|
if (targetName == NULL) {
|
if (targetName == NULL) {
|
/*
|
/*
|
* Return information about all of the available packages.
|
* Return information about all of the available packages.
|
*/
|
*/
|
|
|
prefix = "{";
|
prefix = "{";
|
for (pkgPtr = firstPackagePtr; pkgPtr != NULL;
|
for (pkgPtr = firstPackagePtr; pkgPtr != NULL;
|
pkgPtr = pkgPtr->nextPtr) {
|
pkgPtr = pkgPtr->nextPtr) {
|
Tcl_AppendResult(interp, prefix, (char *) NULL);
|
Tcl_AppendResult(interp, prefix, (char *) NULL);
|
Tcl_AppendElement(interp, pkgPtr->fileName);
|
Tcl_AppendElement(interp, pkgPtr->fileName);
|
Tcl_AppendElement(interp, pkgPtr->packageName);
|
Tcl_AppendElement(interp, pkgPtr->packageName);
|
Tcl_AppendResult(interp, "}", (char *) NULL);
|
Tcl_AppendResult(interp, "}", (char *) NULL);
|
prefix = " {";
|
prefix = " {";
|
}
|
}
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
/*
|
/*
|
* Return information about only the packages that are loaded in
|
* Return information about only the packages that are loaded in
|
* a given interpreter.
|
* a given interpreter.
|
*/
|
*/
|
|
|
target = Tcl_GetSlave(interp, targetName);
|
target = Tcl_GetSlave(interp, targetName);
|
if (target == NULL) {
|
if (target == NULL) {
|
Tcl_AppendResult(interp, "couldn't find slave interpreter named \"",
|
Tcl_AppendResult(interp, "couldn't find slave interpreter named \"",
|
targetName, "\"", (char *) NULL);
|
targetName, "\"", (char *) NULL);
|
return TCL_ERROR;
|
return TCL_ERROR;
|
}
|
}
|
ipPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
|
ipPtr = (InterpPackage *) Tcl_GetAssocData(target, "tclLoad",
|
(Tcl_InterpDeleteProc **) NULL);
|
(Tcl_InterpDeleteProc **) NULL);
|
prefix = "{";
|
prefix = "{";
|
for ( ; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
|
for ( ; ipPtr != NULL; ipPtr = ipPtr->nextPtr) {
|
pkgPtr = ipPtr->pkgPtr;
|
pkgPtr = ipPtr->pkgPtr;
|
Tcl_AppendResult(interp, prefix, (char *) NULL);
|
Tcl_AppendResult(interp, prefix, (char *) NULL);
|
Tcl_AppendElement(interp, pkgPtr->fileName);
|
Tcl_AppendElement(interp, pkgPtr->fileName);
|
Tcl_AppendElement(interp, pkgPtr->packageName);
|
Tcl_AppendElement(interp, pkgPtr->packageName);
|
Tcl_AppendResult(interp, "}", (char *) NULL);
|
Tcl_AppendResult(interp, "}", (char *) NULL);
|
prefix = " {";
|
prefix = " {";
|
}
|
}
|
return TCL_OK;
|
return TCL_OK;
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* LoadCleanupProc --
|
* LoadCleanupProc --
|
*
|
*
|
* This procedure is called to delete all of the InterpPackage
|
* This procedure is called to delete all of the InterpPackage
|
* structures for an interpreter when the interpreter is deleted.
|
* structures for an interpreter when the interpreter is deleted.
|
* It gets invoked via the Tcl AssocData mechanism.
|
* It gets invoked via the Tcl AssocData mechanism.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Storage for all of the InterpPackage procedures for interp
|
* Storage for all of the InterpPackage procedures for interp
|
* get deleted.
|
* get deleted.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
LoadCleanupProc(clientData, interp)
|
LoadCleanupProc(clientData, interp)
|
ClientData clientData; /* Pointer to first InterpPackage structure
|
ClientData clientData; /* Pointer to first InterpPackage structure
|
* for interp. */
|
* for interp. */
|
Tcl_Interp *interp; /* Interpreter that is being deleted. */
|
Tcl_Interp *interp; /* Interpreter that is being deleted. */
|
{
|
{
|
InterpPackage *ipPtr, *nextPtr;
|
InterpPackage *ipPtr, *nextPtr;
|
|
|
ipPtr = (InterpPackage *) clientData;
|
ipPtr = (InterpPackage *) clientData;
|
while (ipPtr != NULL) {
|
while (ipPtr != NULL) {
|
nextPtr = ipPtr->nextPtr;
|
nextPtr = ipPtr->nextPtr;
|
ckfree((char *) ipPtr);
|
ckfree((char *) ipPtr);
|
ipPtr = nextPtr;
|
ipPtr = nextPtr;
|
}
|
}
|
}
|
}
|
|
|
/*
|
/*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*
|
*
|
* LoadExitProc --
|
* LoadExitProc --
|
*
|
*
|
* This procedure is invoked just before the application exits.
|
* This procedure is invoked just before the application exits.
|
* It frees all of the LoadedPackage structures.
|
* It frees all of the LoadedPackage structures.
|
*
|
*
|
* Results:
|
* Results:
|
* None.
|
* None.
|
*
|
*
|
* Side effects:
|
* Side effects:
|
* Memory is freed.
|
* Memory is freed.
|
*
|
*
|
*----------------------------------------------------------------------
|
*----------------------------------------------------------------------
|
*/
|
*/
|
|
|
static void
|
static void
|
LoadExitProc(clientData)
|
LoadExitProc(clientData)
|
ClientData clientData; /* Not used. */
|
ClientData clientData; /* Not used. */
|
{
|
{
|
LoadedPackage *pkgPtr;
|
LoadedPackage *pkgPtr;
|
|
|
while (firstPackagePtr != NULL) {
|
while (firstPackagePtr != NULL) {
|
pkgPtr = firstPackagePtr;
|
pkgPtr = firstPackagePtr;
|
firstPackagePtr = pkgPtr->nextPtr;
|
firstPackagePtr = pkgPtr->nextPtr;
|
ckfree(pkgPtr->fileName);
|
ckfree(pkgPtr->fileName);
|
ckfree(pkgPtr->packageName);
|
ckfree(pkgPtr->packageName);
|
ckfree((char *) pkgPtr);
|
ckfree((char *) pkgPtr);
|
}
|
}
|
}
|
}
|
|
|
