int
TclpUtime(
Tcl_Obj *pathPtr, /* File to modify */
struct utimbuf *tval) /* New modification date structure */
{
return utime(Tcl_FSGetNativePath(pathPtr), tval);
}
int
TclpObjLstat(
Tcl_Obj *pathPtr, /* Path of file to stat */
Tcl_StatBuf *bufPtr) /* Filled with results of stat call. */
{
return TclOSlstat(Tcl_FSGetNativePath(pathPtr), bufPtr);
}
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
shl_t handle;
CONST char *native;
char *fileName = Tcl_GetString(pathPtr);
/*
* The flags below used to be BIND_IMMEDIATE; they were changed at the
* suggestion of Wolfgang Kechel ([email protected]): "This enables
* verbosity for missing symbols when loading a shared lib and allows to
* load libtk8.0.sl into tclsh8.0 without problems. In general, this
* delays resolving symbols until they are actually needed. Shared libs
* do no longer need all libraries linked in when they are build."
*/
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
native = Tcl_FSGetNativePath(pathPtr);
handle = shl_load(native, BIND_DEFERRED|BIND_VERBOSE, 0L);
if (handle == NULL) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
Tcl_DString ds;
native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
handle = shl_load(native, BIND_DEFERRED|BIND_VERBOSE|DYNAMIC_PATH, 0L);
Tcl_DStringFree(&ds);
}
if (handle == NULL) {
Tcl_AppendResult(interp, "couldn't load file \"", fileName, "\": ",
Tcl_PosixError(interp), (char *) NULL);
return TCL_ERROR;
}
*loadHandle = (Tcl_LoadHandle) handle;
*unloadProcPtr = &TclpUnloadFile;
return TCL_OK;
}
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
void *handle;
const char *native;
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
native = Tcl_FSGetNativePath(pathPtr);
handle = dlopen(native, RTLD_NOW | RTLD_GLOBAL);
if (handle == NULL) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
Tcl_DString ds;
char *fileName = Tcl_GetString(pathPtr);
native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
handle = dlopen(native, RTLD_NOW | RTLD_GLOBAL);
Tcl_DStringFree(&ds);
}
if (handle == NULL) {
/*
* Write the string to a variable first to work around a compiler bug
* in the Sun Forte 6 compiler. [Bug 1503729]
*/
const char *errorStr = dlerror();
Tcl_AppendResult(interp, "couldn't load file \"",
Tcl_GetString(pathPtr), "\": ", errorStr, NULL);
return TCL_ERROR;
}
*unloadProcPtr = &TclpUnloadFile;
*loadHandle = (Tcl_LoadHandle) handle;
return TCL_OK;
}
int
TclpObjChdir(
Tcl_Obj *pathPtr) /* Path to new working directory */
{
const char *path = Tcl_FSGetNativePath(pathPtr);
if (path == NULL) {
return -1;
}
return chdir(path);
}
int
TclpObjStat(
Tcl_Obj *pathPtr, /* Path of file to stat */
Tcl_StatBuf *bufPtr) /* Filled with results of stat call. */
{
const char *path = Tcl_FSGetNativePath(pathPtr);
if (path == NULL) {
return -1;
}
return TclOSstat(path, bufPtr);
}
int
TclpObjAccess(
Tcl_Obj *pathPtr, /* Path of file to access */
int mode) /* Permission setting. */
{
const char *path = Tcl_FSGetNativePath(pathPtr);
if (path == NULL) {
return -1;
}
return access(path, mode);
}
Tcl_Obj *
TclpObjLink(
Tcl_Obj *pathPtr,
Tcl_Obj *toPtr,
int linkAction)
{
if (toPtr != NULL) {
const char *src = Tcl_FSGetNativePath(pathPtr);
const char *target = NULL;
if (src == NULL) {
return NULL;
}
/*
* If we're making a symbolic link and the path is relative, then we
* must check whether it exists _relative_ to the directory in which
* the src is found (not relative to the current cwd which is just not
* relevant in this case).
*
* If we're making a hard link, then a relative path is just converted
* to absolute relative to the cwd.
*/
if ((linkAction & TCL_CREATE_SYMBOLIC_LINK)
&& (Tcl_FSGetPathType(toPtr) == TCL_PATH_RELATIVE)) {
Tcl_Obj *dirPtr, *absPtr;
dirPtr = TclPathPart(NULL, pathPtr, TCL_PATH_DIRNAME);
if (dirPtr == NULL) {
return NULL;
}
absPtr = Tcl_FSJoinToPath(dirPtr, 1, &toPtr);
Tcl_IncrRefCount(absPtr);
if (Tcl_FSAccess(absPtr, F_OK) == -1) {
Tcl_DecrRefCount(absPtr);
Tcl_DecrRefCount(dirPtr);
/*
* Target doesn't exist.
*/
errno = ENOENT;
return NULL;
}
/*
* Target exists; we'll construct the relative path we want below.
*/
Tcl_DecrRefCount(absPtr);
Tcl_DecrRefCount(dirPtr);
} else {
target = Tcl_FSGetNativePath(toPtr);
if (target == NULL) {
return NULL;
}
if (access(target, F_OK) == -1) {
/*
* Target doesn't exist.
*/
errno = ENOENT;
return NULL;
}
}
if (access(src, F_OK) != -1) {
/*
* Src exists.
*/
errno = EEXIST;
return NULL;
}
/*
* Check symbolic link flag first, since we prefer to create these.
*/
if (linkAction & TCL_CREATE_SYMBOLIC_LINK) {
int targetLen;
Tcl_DString ds;
Tcl_Obj *transPtr;
/*
* Now we don't want to link to the absolute, normalized path.
* Relative links are quite acceptable (but links to ~user are not
* -- these must be expanded first).
*/
transPtr = Tcl_FSGetTranslatedPath(NULL, toPtr);
if (transPtr == NULL) {
return NULL;
}
target = TclGetStringFromObj(transPtr, &targetLen);
target = Tcl_UtfToExternalDString(NULL, target, targetLen, &ds);
Tcl_DecrRefCount(transPtr);
if (symlink(target, src) != 0) {
toPtr = NULL;
}
Tcl_DStringFree(&ds);
} else if (linkAction & TCL_CREATE_HARD_LINK) {
if (link(target, src) != 0) {
return NULL;
}
} else {
errno = ENODEV;
return NULL;
}
return toPtr;
} else {
Tcl_Obj *linkPtr = NULL;
char link[MAXPATHLEN];
int length;
Tcl_DString ds;
Tcl_Obj *transPtr;
transPtr = Tcl_FSGetTranslatedPath(NULL, pathPtr);
if (transPtr == NULL) {
return NULL;
}
Tcl_DecrRefCount(transPtr);
length = readlink(Tcl_FSGetNativePath(pathPtr), link, sizeof(link));
if (length < 0) {
return NULL;
}
Tcl_ExternalToUtfDString(NULL, link, length, &ds);
linkPtr = TclDStringToObj(&ds);
Tcl_IncrRefCount(linkPtr);
return linkPtr;
}
}
int
TclpMatchInDirectory(
Tcl_Interp *interp, /* Interpreter to receive errors. */
Tcl_Obj *resultPtr, /* List object to lappend results. */
Tcl_Obj *pathPtr, /* Contains path to directory to search. */
const char *pattern, /* Pattern to match against. */
Tcl_GlobTypeData *types) /* Object containing list of acceptable types.
* May be NULL. In particular the directory
* flag is very important. */
{
const char *native;
Tcl_Obj *fileNamePtr;
int matchResult = 0;
if (types != NULL && types->type == TCL_GLOB_TYPE_MOUNT) {
/*
* The native filesystem never adds mounts.
*/
return TCL_OK;
}
fileNamePtr = Tcl_FSGetTranslatedPath(interp, pathPtr);
if (fileNamePtr == NULL) {
return TCL_ERROR;
}
if (pattern == NULL || (*pattern == '\0')) {
/*
* Match a file directly.
*/
Tcl_Obj *tailPtr;
const char *nativeTail;
native = Tcl_FSGetNativePath(pathPtr);
tailPtr = TclPathPart(interp, pathPtr, TCL_PATH_TAIL);
nativeTail = Tcl_FSGetNativePath(tailPtr);
matchResult = NativeMatchType(interp, native, nativeTail, types);
if (matchResult == 1) {
Tcl_ListObjAppendElement(interp, resultPtr, pathPtr);
}
Tcl_DecrRefCount(tailPtr);
Tcl_DecrRefCount(fileNamePtr);
} else {
DIR *d;
Tcl_DirEntry *entryPtr;
const char *dirName;
int dirLength, nativeDirLen;
int matchHidden, matchHiddenPat;
Tcl_StatBuf statBuf;
Tcl_DString ds; /* native encoding of dir */
Tcl_DString dsOrig; /* utf-8 encoding of dir */
Tcl_DStringInit(&dsOrig);
dirName = TclGetStringFromObj(fileNamePtr, &dirLength);
Tcl_DStringAppend(&dsOrig, dirName, dirLength);
/*
* Make sure that the directory part of the name really is a
* directory. If the directory name is "", use the name "." instead,
* because some UNIX systems don't treat "" like "." automatically.
* Keep the "" for use in generating file names, otherwise "glob
* foo.c" would return "./foo.c".
*/
if (dirLength == 0) {
dirName = ".";
} else {
dirName = Tcl_DStringValue(&dsOrig);
/*
* Make sure we have a trailing directory delimiter.
*/
if (dirName[dirLength-1] != '/') {
dirName = TclDStringAppendLiteral(&dsOrig, "/");
dirLength++;
}
}
/*
* Now open the directory for reading and iterate over the contents.
*/
native = Tcl_UtfToExternalDString(NULL, dirName, -1, &ds);
if ((TclOSstat(native, &statBuf) != 0) /* INTL: Native. */
|| !S_ISDIR(statBuf.st_mode)) {
Tcl_DStringFree(&dsOrig);
Tcl_DStringFree(&ds);
Tcl_DecrRefCount(fileNamePtr);
return TCL_OK;
}
d = opendir(native); /* INTL: Native. */
if (d == NULL) {
Tcl_DStringFree(&ds);
if (interp != NULL) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"couldn't read directory \"%s\": %s",
Tcl_DStringValue(&dsOrig), Tcl_PosixError(interp)));
}
Tcl_DStringFree(&dsOrig);
Tcl_DecrRefCount(fileNamePtr);
return TCL_ERROR;
}
nativeDirLen = Tcl_DStringLength(&ds);
/*
* Check to see if -type or the pattern requests hidden files.
*/
matchHiddenPat = (pattern[0] == '.')
|| ((pattern[0] == '\\') && (pattern[1] == '.'));
matchHidden = matchHiddenPat
|| (types && (types->perm & TCL_GLOB_PERM_HIDDEN));
while ((entryPtr = TclOSreaddir(d)) != NULL) { /* INTL: Native. */
Tcl_DString utfDs;
const char *utfname;
/*
* Skip this file if it doesn't agree with the hidden parameters
* requested by the user (via -type or pattern).
*/
if (*entryPtr->d_name == '.') {
if (!matchHidden) {
continue;
}
} else {
#ifdef MAC_OSX_TCL
if (matchHiddenPat) {
continue;
}
/* Also need to check HFS hidden flag in TclMacOSXMatchType. */
#else
if (matchHidden) {
continue;
}
#endif
}
/*
* Now check to see if the file matches, according to both type
* and pattern. If so, add the file to the result.
*/
utfname = Tcl_ExternalToUtfDString(NULL, entryPtr->d_name, -1,
&utfDs);
if (Tcl_StringCaseMatch(utfname, pattern, 0)) {
int typeOk = 1;
if (types != NULL) {
Tcl_DStringSetLength(&ds, nativeDirLen);
native = Tcl_DStringAppend(&ds, entryPtr->d_name, -1);
matchResult = NativeMatchType(interp, native,
entryPtr->d_name, types);
typeOk = (matchResult == 1);
}
if (typeOk) {
Tcl_ListObjAppendElement(interp, resultPtr,
TclNewFSPathObj(pathPtr, utfname,
Tcl_DStringLength(&utfDs)));
}
}
Tcl_DStringFree(&utfDs);
if (matchResult < 0) {
break;
}
}
closedir(d);
Tcl_DStringFree(&ds);
Tcl_DStringFree(&dsOrig);
Tcl_DecrRefCount(fileNamePtr);
}
if (matchResult < 0) {
return TCL_ERROR;
}
return TCL_OK;
}
MODULE_SCOPE int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
Tcl_DyldLoadHandle *dyldLoadHandle;
#if TCL_DYLD_USE_DLFCN
void *dlHandle = NULL;
#endif
#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
const struct mach_header *dyldLibHeader = NULL;
Tcl_DyldModuleHandle *modulePtr = NULL;
#endif
#if TCL_DYLD_USE_NSMODULE
NSLinkEditErrors editError;
int errorNumber;
const char *errorName, *objFileImageErrMsg = NULL;
#endif
const char *errMsg = NULL;
int result;
Tcl_DString ds;
char *fileName = NULL;
const char *nativePath, *nativeFileName = NULL;
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
nativePath = Tcl_FSGetNativePath(pathPtr);
#if TCL_DYLD_USE_DLFCN
#if MAC_OS_X_VERSION_MIN_REQUIRED < 1040
if (tclMacOSXDarwinRelease >= 8)
#endif
{
dlHandle = dlopen(nativePath, RTLD_NOW | RTLD_LOCAL);
if (!dlHandle) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
fileName = Tcl_GetString(pathPtr);
nativeFileName = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
dlHandle = dlopen(nativeFileName, RTLD_NOW | RTLD_LOCAL);
}
if (dlHandle) {
TclLoadDbgMsg("dlopen() successful");
} else {
errMsg = dlerror();
TclLoadDbgMsg("dlopen() failed: %s", errMsg);
}
}
if (!dlHandle)
#endif /* TCL_DYLD_USE_DLFCN */
{
#if TCL_DYLD_USE_NSMODULE
dyldLibHeader = NSAddImage(nativePath,
NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (dyldLibHeader) {
TclLoadDbgMsg("NSAddImage() successful");
} else {
NSLinkEditError(&editError, &errorNumber, &errorName, &errMsg);
if (editError == NSLinkEditFileAccessError) {
/*
* The requested file was not found. Let the OS loader examine
* the binary search path for whatever string the user gave us
* which hopefully refers to a file on the binary path.
*/
if (!fileName) {
fileName = Tcl_GetString(pathPtr);
nativeFileName = Tcl_UtfToExternalDString(NULL, fileName,
-1, &ds);
}
dyldLibHeader = NSAddImage(nativeFileName,
NSADDIMAGE_OPTION_WITH_SEARCHING |
NSADDIMAGE_OPTION_RETURN_ON_ERROR);
if (dyldLibHeader) {
TclLoadDbgMsg("NSAddImage() successful");
} else {
NSLinkEditError(&editError, &errorNumber, &errorName,
&errMsg);
TclLoadDbgMsg("NSAddImage() failed: %s", errMsg);
}
} else if ((editError == NSLinkEditFileFormatError
&& errorNumber == EBADMACHO)
|| editError == NSLinkEditOtherError){
NSObjectFileImageReturnCode err;
NSObjectFileImage dyldObjFileImage;
NSModule module;
/*
* The requested file was found but was not of type MH_DYLIB,
* attempt to load it as a MH_BUNDLE.
*/
err = NSCreateObjectFileImageFromFile(nativePath,
&dyldObjFileImage);
if (err == NSObjectFileImageSuccess && dyldObjFileImage) {
TclLoadDbgMsg("NSCreateObjectFileImageFromFile() "
"successful");
module = NSLinkModule(dyldObjFileImage, nativePath,
NSLINKMODULE_OPTION_BINDNOW
| NSLINKMODULE_OPTION_RETURN_ON_ERROR);
NSDestroyObjectFileImage(dyldObjFileImage);
if (module) {
modulePtr = (Tcl_DyldModuleHandle *)
ckalloc(sizeof(Tcl_DyldModuleHandle));
modulePtr->module = module;
modulePtr->nextPtr = NULL;
TclLoadDbgMsg("NSLinkModule() successful");
} else {
NSLinkEditError(&editError, &errorNumber, &errorName,
&errMsg);
TclLoadDbgMsg("NSLinkModule() failed: %s", errMsg);
}
} else {
objFileImageErrMsg = DyldOFIErrorMsg(err);
TclLoadDbgMsg("NSCreateObjectFileImageFromFile() failed: "
"%s", objFileImageErrMsg);
}
}
}
#endif /* TCL_DYLD_USE_NSMODULE */
}
if (0
#if TCL_DYLD_USE_DLFCN
|| dlHandle
#endif
#if TCL_DYLD_USE_NSMODULE
|| dyldLibHeader || modulePtr
#endif
) {
dyldLoadHandle = (Tcl_DyldLoadHandle *)
ckalloc(sizeof(Tcl_DyldLoadHandle));
#if TCL_DYLD_USE_DLFCN
dyldLoadHandle->dlHandle = dlHandle;
#endif
#if TCL_DYLD_USE_NSMODULE || defined(TCL_LOAD_FROM_MEMORY)
dyldLoadHandle->dyldLibHeader = dyldLibHeader;
dyldLoadHandle->modulePtr = modulePtr;
#endif
*loadHandle = (Tcl_LoadHandle) dyldLoadHandle;
*unloadProcPtr = &TclpUnloadFile;
result = TCL_OK;
} else {
Tcl_AppendResult(interp, errMsg, NULL);
#if TCL_DYLD_USE_NSMODULE
if (objFileImageErrMsg) {
Tcl_AppendResult(interp, "\nNSCreateObjectFileImageFromFile() "
"error: ", objFileImageErrMsg, NULL);
}
#endif
result = TCL_ERROR;
}
if(fileName) {
Tcl_DStringFree(&ds);
}
return result;
}
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr,
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
int flags)
{
void *handle;
Tcl_LoadHandle newHandle;
const char *native;
int dlopenflags = 0;
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
native = Tcl_FSGetNativePath(pathPtr);
/*
* Use (RTLD_NOW|RTLD_LOCAL) as default, see [Bug #3216070]
*/
if (flags & TCL_LOAD_GLOBAL) {
dlopenflags |= RTLD_GLOBAL;
} else {
dlopenflags |= RTLD_LOCAL;
}
if (flags & TCL_LOAD_LAZY) {
dlopenflags |= RTLD_LAZY;
} else {
dlopenflags |= RTLD_NOW;
}
handle = dlopen(native, dlopenflags);
if (handle == NULL) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
Tcl_DString ds;
const char *fileName = Tcl_GetString(pathPtr);
native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
/*
* Use (RTLD_NOW|RTLD_LOCAL) as default, see [Bug #3216070]
*/
handle = dlopen(native, dlopenflags);
Tcl_DStringFree(&ds);
}
if (handle == NULL) {
/*
* Write the string to a variable first to work around a compiler bug
* in the Sun Forte 6 compiler. [Bug 1503729]
*/
const char *errorStr = dlerror();
if (interp) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"couldn't load file \"%s\": %s",
Tcl_GetString(pathPtr), errorStr));
}
return TCL_ERROR;
}
newHandle = Tcl_Alloc(sizeof(*newHandle));
newHandle->clientData = handle;
newHandle->findSymbolProcPtr = &FindSymbol;
newHandle->unloadFileProcPtr = &UnloadFile;
*unloadProcPtr = &UnloadFile;
*loadHandle = newHandle;
return TCL_OK;
}
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
struct mach_header *header;
char *fileName;
char *files[2];
CONST char *native;
int result = 1;
NXStream *errorStream = NXOpenMemory(0,0,NX_READWRITE);
fileName = Tcl_GetString(pathPtr);
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
native = Tcl_FSGetNativePath(pathPtr);
files = {native,NULL};
result = rld_load(errorStream, &header, files, NULL);
if (!result) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path
*/
Tcl_DString ds;
native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
files = {native,NULL};
result = rld_load(errorStream, &header, files, NULL);
Tcl_DStringFree(&ds);
}
if (!result) {
char *data;
int len, maxlen;
NXGetMemoryBuffer(errorStream,&data,&len,&maxlen);
Tcl_AppendResult(interp, "couldn't load file \"", fileName, "\": ",
data, NULL);
NXCloseMemory(errorStream, NX_FREEBUFFER);
return TCL_ERROR;
}
NXCloseMemory(errorStream, NX_FREEBUFFER);
*loadHandle = (Tcl_LoadHandle)1; /* A dummy non-NULL value */
*unloadProcPtr = &TclpUnloadFile;
return TCL_OK;
}
Tcl_Channel
TclpOpenFileChannel(
Tcl_Interp *interp, /* Interpreter for error reporting; can be
* NULL. */
Tcl_Obj *pathPtr, /* Name of file to open. */
int mode, /* POSIX open mode. */
int permissions) /* If the open involves creating a file, with
* what modes to create it? */
{
int fd, channelPermissions;
FileState *fsPtr;
const char *native, *translation;
char channelName[16 + TCL_INTEGER_SPACE];
const Tcl_ChannelType *channelTypePtr;
switch (mode & (O_RDONLY | O_WRONLY | O_RDWR)) {
case O_RDONLY:
channelPermissions = TCL_READABLE;
break;
case O_WRONLY:
channelPermissions = TCL_WRITABLE;
break;
case O_RDWR:
channelPermissions = (TCL_READABLE | TCL_WRITABLE);
break;
default:
/*
* This may occurr if modeString was "", for example.
*/
Tcl_Panic("TclpOpenFileChannel: invalid mode value");
return NULL;
}
native = Tcl_FSGetNativePath(pathPtr);
if (native == NULL) {
if (interp != (Tcl_Interp *) NULL) {
Tcl_AppendResult(interp, "couldn't open \"",
TclGetString(pathPtr), "\": filename is invalid on this platform",
NULL);
}
return NULL;
}
#ifdef DJGPP
SET_BITS(mode, O_BINARY);
#endif
fd = TclOSopen(native, mode, permissions);
if (fd < 0) {
if (interp != NULL) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"couldn't open \"%s\": %s",
TclGetString(pathPtr), Tcl_PosixError(interp)));
}
return NULL;
}
/*
* Set close-on-exec flag on the fd so that child processes will not
* inherit this fd.
*/
fcntl(fd, F_SETFD, FD_CLOEXEC);
sprintf(channelName, "file%d", fd);
#ifdef SUPPORTS_TTY
if (strcmp(native, "/dev/tty") != 0 && isatty(fd)) {
/*
* Initialize the serial port to a set of sane parameters. Especially
* important if the remote device is set to echo and the serial port
* driver was also set to echo -- as soon as a char were sent to the
* serial port, the remote device would echo it, then the serial
* driver would echo it back to the device, etc.
*
* Note that we do not do this if we're dealing with /dev/tty itself,
* as that tends to cause Bad Things To Happen when you're working
* interactively. Strictly a better check would be to see if the FD
* being set up is a device and has the same major/minor as the
* initial std FDs (beware reopening!) but that's nearly as messy.
*/
translation = "auto crlf";
channelTypePtr = &ttyChannelType;
TtyInit(fd);
} else
#endif /* SUPPORTS_TTY */
{
translation = NULL;
channelTypePtr = &fileChannelType;
}
fsPtr = ckalloc(sizeof(FileState));
fsPtr->validMask = channelPermissions | TCL_EXCEPTION;
fsPtr->fd = fd;
fsPtr->channel = Tcl_CreateChannel(channelTypePtr, channelName,
fsPtr, channelPermissions);
if (translation != NULL) {
/*
* Gotcha. Most modems need a "\r" at the end of the command sequence.
* If you just send "at\n", the modem will not respond with "OK"
* because it never got a "\r" to actually invoke the command. So, by
* default, newlines are translated to "\r\n" on output to avoid "bug"
* reports that the serial port isn't working.
*/
if (Tcl_SetChannelOption(interp, fsPtr->channel, "-translation",
translation) != TCL_OK) {
Tcl_Close(NULL, fsPtr->channel);
return NULL;
}
}
return fsPtr->channel;
}
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
HINSTANCE handle;
const TCHAR *nativeName;
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
nativeName = Tcl_FSGetNativePath(pathPtr);
handle = (*tclWinProcs->loadLibraryProc)(nativeName);
if (handle == NULL) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path.
*/
Tcl_DString ds;
char *fileName = Tcl_GetString(pathPtr);
nativeName = Tcl_WinUtfToTChar(fileName, -1, &ds);
handle = (*tclWinProcs->loadLibraryProc)(nativeName);
Tcl_DStringFree(&ds);
}
*loadHandle = (Tcl_LoadHandle) handle;
if (handle == NULL) {
DWORD lastError = GetLastError();
#if 0
/*
* It would be ideal if the FormatMessage stuff worked better, but
* unfortunately it doesn't seem to want to...
*/
LPTSTR lpMsgBuf;
char *buf;
int size;
size = FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_ALLOCATE_BUFFER, NULL, lastError, 0,
(LPTSTR) &lpMsgBuf, 0, NULL);
buf = (char *) ckalloc((unsigned) TCL_INTEGER_SPACE + size + 1);
sprintf(buf, "%d %s", lastError, (char *)lpMsgBuf);
#endif
Tcl_AppendResult(interp, "couldn't load library \"",
Tcl_GetString(pathPtr), "\": ", NULL);
/*
* Check for possible DLL errors. This doesn't work quite right,
* because Windows seems to only return ERROR_MOD_NOT_FOUND for just
* about any problem, but it's better than nothing. It'd be even
* better if there was a way to get what DLLs
*/
switch (lastError) {
case ERROR_MOD_NOT_FOUND:
case ERROR_DLL_NOT_FOUND:
Tcl_AppendResult(interp, "this library or a dependent library"
" could not be found in library path", NULL);
break;
case ERROR_PROC_NOT_FOUND:
Tcl_AppendResult(interp, "A function specified in the import"
" table could not be resolved by the system. Windows"
" is not telling which one, I'm sorry.", NULL);
break;
case ERROR_INVALID_DLL:
Tcl_AppendResult(interp, "this library or a dependent library"
" is damaged", NULL);
break;
case ERROR_DLL_INIT_FAILED:
Tcl_AppendResult(interp, "the library initialization"
" routine failed", NULL);
break;
default:
TclWinConvertError(lastError);
Tcl_AppendResult(interp, Tcl_PosixError(interp), NULL);
}
return TCL_ERROR;
} else {
*unloadProcPtr = &TclpUnloadFile;
}
return TCL_OK;
}
int
TclpDlopen(
Tcl_Interp *interp, /* Used for error reporting. */
Tcl_Obj *pathPtr, /* Name of the file containing the desired
* code (UTF-8). */
Tcl_LoadHandle *loadHandle, /* Filled with token for dynamically loaded
* file which will be passed back to
* (*unloadProcPtr)() to unload the file. */
Tcl_FSUnloadFileProc **unloadProcPtr)
/* Filled with address of Tcl_FSUnloadFileProc
* function which should be used for this
* file. */
{
ldr_module_t lm;
char *pkg;
char *fileName = Tcl_GetString(pathPtr);
const char *native;
/*
* First try the full path the user gave us. This is particularly
* important if the cwd is inside a vfs, and we are trying to load using a
* relative path.
*/
native = Tcl_FSGetNativePath(pathPtr);
lm = (Tcl_PackageInitProc *) load(native, LDR_NOFLAGS);
if (lm == LDR_NULL_MODULE) {
/*
* Let the OS loader examine the binary search path for whatever
* string the user gave us which hopefully refers to a file on the
* binary path
*/
Tcl_DString ds;
native = Tcl_UtfToExternalDString(NULL, fileName, -1, &ds);
lm = (Tcl_PackageInitProc *) load(native, LDR_NOFLAGS);
Tcl_DStringFree(&ds);
}
if (lm == LDR_NULL_MODULE) {
Tcl_AppendResult(interp, "couldn't load file \"", fileName, "\": ",
Tcl_PosixError(interp), NULL);
return TCL_ERROR;
}
*clientDataPtr = NULL;
/*
* My convention is to use a [OSF loader] package name the same as shlib,
* since the idiots never implemented ldr_lookup() and it is otherwise
* impossible to get a package name given a module.
*
* I build loadable modules with a makefile rule like
* ld ... -export $@: -o $@ $(OBJS)
*/
if ((pkg = strrchr(fileName, '/')) == NULL) {
pkg = fileName;
} else {
pkg++;
}
*loadHandle = pkg;
*unloadProcPtr = &TclpUnloadFile;
return TCL_OK;
}
