diff options
Diffstat (limited to 'generic/tclCmdAH.c')
| -rw-r--r-- | generic/tclCmdAH.c | 3656 |
1 files changed, 2251 insertions, 1405 deletions
diff --git a/generic/tclCmdAH.c b/generic/tclCmdAH.c index ce50da4..807a1ac 100644 --- a/generic/tclCmdAH.c +++ b/generic/tclCmdAH.c @@ -9,14 +9,36 @@ * * See the file "license.terms" for information on usage and redistribution of * this file, and for a DISCLAIMER OF ALL WARRANTIES. - * - * RCS: @(#) $Id: tclCmdAH.c,v 1.72 2006/02/08 21:41:27 dgp Exp $ */ #include "tclInt.h" +#ifdef _WIN32 +# include "tclWinInt.h" +#endif #include <locale.h> -#define NEW_FORMAT 1 +/* + * The state structure used by [foreach]. Note that the actual structure has + * all its working arrays appended afterwards so they can be allocated and + * freed in a single step. + */ + +struct ForeachState { + Tcl_Obj *bodyPtr; /* The script body of the command. */ + int bodyIdx; /* The argument index of the body. */ + int j, maxj; /* Number of loop iterations. */ + int numLists; /* Count of value lists. */ + int *index; /* Array of value list indices. */ + int *varcList; /* # loop variables per list. */ + Tcl_Obj ***varvList; /* Array of var name lists. */ + Tcl_Obj **vCopyList; /* Copies of var name list arguments. */ + int *argcList; /* Array of value list sizes. */ + Tcl_Obj ***argvList; /* Array of value lists. */ + Tcl_Obj **aCopyList; /* Copies of value list arguments. */ + Tcl_Obj *resultList; /* List of result values from the loop body, + * or NULL if we're not collecting them + * ([lmap] vs [foreach]). */ +}; /* * Prototypes for local procedures defined in this file: @@ -24,14 +46,70 @@ static int CheckAccess(Tcl_Interp *interp, Tcl_Obj *pathPtr, int mode); +static int BadEncodingSubcommand(ClientData dummy, + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); +static int EncodingConvertfromObjCmd(ClientData dummy, + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); +static int EncodingConverttoObjCmd(ClientData dummy, + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); static int EncodingDirsObjCmd(ClientData dummy, - Tcl_Interp *interp, int objc, - Tcl_Obj *CONST objv[]); + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); +static int EncodingNamesObjCmd(ClientData dummy, + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); +static int EncodingSystemObjCmd(ClientData dummy, + Tcl_Interp *interp, int objc, + Tcl_Obj *const objv[]); +static inline int ForeachAssignments(Tcl_Interp *interp, + struct ForeachState *statePtr); +static inline void ForeachCleanup(Tcl_Interp *interp, + struct ForeachState *statePtr); static int GetStatBuf(Tcl_Interp *interp, Tcl_Obj *pathPtr, Tcl_FSStatProc *statProc, Tcl_StatBuf *statPtr); -static char * GetTypeFromMode(int mode); +static const char * GetTypeFromMode(int mode); static int StoreStatData(Tcl_Interp *interp, Tcl_Obj *varName, Tcl_StatBuf *statPtr); +static inline int EachloopCmd(Tcl_Interp *interp, int collect, + int objc, Tcl_Obj *const objv[]); +static Tcl_NRPostProc CatchObjCmdCallback; +static Tcl_NRPostProc ExprCallback; +static Tcl_NRPostProc ForSetupCallback; +static Tcl_NRPostProc ForCondCallback; +static Tcl_NRPostProc ForNextCallback; +static Tcl_NRPostProc ForPostNextCallback; +static Tcl_NRPostProc ForeachLoopStep; +static Tcl_NRPostProc EvalCmdErrMsg; + +static Tcl_ObjCmdProc BadFileSubcommand; +static Tcl_ObjCmdProc FileAttrAccessTimeCmd; +static Tcl_ObjCmdProc FileAttrIsDirectoryCmd; +static Tcl_ObjCmdProc FileAttrIsExecutableCmd; +static Tcl_ObjCmdProc FileAttrIsExistingCmd; +static Tcl_ObjCmdProc FileAttrIsFileCmd; +static Tcl_ObjCmdProc FileAttrIsOwnedCmd; +static Tcl_ObjCmdProc FileAttrIsReadableCmd; +static Tcl_ObjCmdProc FileAttrIsWritableCmd; +static Tcl_ObjCmdProc FileAttrLinkStatCmd; +static Tcl_ObjCmdProc FileAttrModifyTimeCmd; +static Tcl_ObjCmdProc FileAttrSizeCmd; +static Tcl_ObjCmdProc FileAttrStatCmd; +static Tcl_ObjCmdProc FileAttrTypeCmd; +static Tcl_ObjCmdProc FilesystemSeparatorCmd; +static Tcl_ObjCmdProc FilesystemVolumesCmd; +static Tcl_ObjCmdProc PathDirNameCmd; +static Tcl_ObjCmdProc PathExtensionCmd; +static Tcl_ObjCmdProc PathFilesystemCmd; +static Tcl_ObjCmdProc PathJoinCmd; +static Tcl_ObjCmdProc PathNativeNameCmd; +static Tcl_ObjCmdProc PathNormalizeCmd; +static Tcl_ObjCmdProc PathRootNameCmd; +static Tcl_ObjCmdProc PathSplitCmd; +static Tcl_ObjCmdProc PathTailCmd; +static Tcl_ObjCmdProc PathTypeCmd; /* *---------------------------------------------------------------------- @@ -56,11 +134,11 @@ static int StoreStatData(Tcl_Interp *interp, Tcl_Obj *varName, /* ARGSUSED */ int -Tcl_BreakObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_BreakObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { if (objc != 1) { Tcl_WrongNumArgs(interp, 1, objv, NULL); @@ -75,7 +153,8 @@ Tcl_BreakObjCmd(dummy, interp, objc, objv) * Tcl_CaseObjCmd -- * * This procedure is invoked to process the "case" Tcl command. See the - * user documentation for details on what it does. + * user documentation for details on what it does. THIS COMMAND IS + * OBSOLETE AND DEPRECATED. SLATED FOR REMOVAL IN TCL 9.0. * * Results: * A standard Tcl object result. @@ -85,24 +164,24 @@ Tcl_BreakObjCmd(dummy, interp, objc, objv) * *---------------------------------------------------------------------- */ - +#ifndef TCL_NO_DEPRECATED /* ARGSUSED */ int -Tcl_CaseObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_CaseObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { register int i; int body, result, caseObjc; - char *stringPtr, *arg; - Tcl_Obj *CONST *caseObjv; + const char *stringPtr, *arg; + Tcl_Obj *const *caseObjv; Tcl_Obj *armPtr; if (objc < 3) { Tcl_WrongNumArgs(interp, 1, objv, - "string ?in? patList body ... ?default body?"); + "string ?in? ?pattern body ...? ?default body?"); return TCL_ERROR; } @@ -126,19 +205,19 @@ Tcl_CaseObjCmd(dummy, interp, objc, objv) if (caseObjc == 1) { Tcl_Obj **newObjv; - Tcl_ListObjGetElements(interp, caseObjv[0], &caseObjc, &newObjv); + TclListObjGetElements(interp, caseObjv[0], &caseObjc, &newObjv); caseObjv = newObjv; } for (i = 0; i < caseObjc; i += 2) { int patObjc, j; - CONST char **patObjv; - char *pat; - unsigned char *p; + const char **patObjv; + const char *pat, *p; - if (i == (caseObjc - 1)) { + if (i == caseObjc-1) { Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "extra case pattern with no body", NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "extra case pattern with no body", -1)); return TCL_ERROR; } @@ -148,8 +227,8 @@ Tcl_CaseObjCmd(dummy, interp, objc, objv) */ pat = TclGetString(caseObjv[i]); - for (p = (unsigned char *) pat; *p != '\0'; p++) { - if (isspace(*p) || (*p == '\\')) { /* INTL: ISO space, UCHAR */ + for (p = pat; *p != '\0'; p++) { + if (TclIsSpaceProc(*p) || (*p == '\\')) { break; } } @@ -179,7 +258,7 @@ Tcl_CaseObjCmd(dummy, interp, objc, objv) break; } } - ckfree((char *) patObjv); + ckfree(patObjv); if (j < patObjc) { break; } @@ -190,8 +269,9 @@ Tcl_CaseObjCmd(dummy, interp, objc, objv) armPtr = caseObjv[body - 1]; result = Tcl_EvalObjEx(interp, caseObjv[body], 0); if (result == TCL_ERROR) { - TclFormatToErrorInfo(interp, "\n (\"%.50s\" arm line %d)", - TclGetString(armPtr), interp->errorLine); + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"%.50s\" arm line %d)", + TclGetString(armPtr), Tcl_GetErrorLine(interp))); } return result; } @@ -202,6 +282,7 @@ Tcl_CaseObjCmd(dummy, interp, objc, objv) return TCL_OK; } +#endif /* !TCL_NO_DEPRECATED */ /* *---------------------------------------------------------------------- @@ -222,15 +303,25 @@ Tcl_CaseObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_CatchObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_CatchObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRCatchObjCmd, dummy, objc, objv); +} + +int +TclNRCatchObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { Tcl_Obj *varNamePtr = NULL; Tcl_Obj *optionVarNamePtr = NULL; - int result; + Interp *iPtr = (Interp *) interp; if ((objc < 2) || (objc > 4)) { Tcl_WrongNumArgs(interp, 1, objv, @@ -245,34 +336,51 @@ Tcl_CatchObjCmd(dummy, interp, objc, objv) optionVarNamePtr = objv[3]; } - result = Tcl_EvalObjEx(interp, objv[1], 0); + TclNRAddCallback(interp, CatchObjCmdCallback, INT2PTR(objc), + varNamePtr, optionVarNamePtr, NULL); + + /* + * TIP #280. Make invoking context available to caught script. + */ + + return TclNREvalObjEx(interp, objv[1], 0, iPtr->cmdFramePtr, 1); +} + +static int +CatchObjCmdCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Interp *iPtr = (Interp *) interp; + int objc = PTR2INT(data[0]); + Tcl_Obj *varNamePtr = data[1]; + Tcl_Obj *optionVarNamePtr = data[2]; + int rewind = iPtr->execEnvPtr->rewind; /* * We disable catch in interpreters where the limit has been exceeded. */ - if (Tcl_LimitExceeded(interp)) { - TclFormatToErrorInfo(interp, "\n (\"catch\" body line %d)", - interp->errorLine); + if (rewind || Tcl_LimitExceeded(interp)) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"catch\" body line %d)", Tcl_GetErrorLine(interp))); return TCL_ERROR; } if (objc >= 3) { if (NULL == Tcl_ObjSetVar2(interp, varNamePtr, NULL, - Tcl_GetObjResult(interp), 0)) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, - "couldn't save command result in variable", NULL); + Tcl_GetObjResult(interp), TCL_LEAVE_ERR_MSG)) { return TCL_ERROR; } } if (objc == 4) { Tcl_Obj *options = Tcl_GetReturnOptions(interp, result); + if (NULL == Tcl_ObjSetVar2(interp, optionVarNamePtr, NULL, - options, 0)) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, - "couldn't save return options in variable", NULL); + options, TCL_LEAVE_ERR_MSG)) { + /* Do not decrRefCount 'options', it was already done by + * Tcl_ObjSetVar2 */ return TCL_ERROR; } } @@ -301,11 +409,11 @@ Tcl_CatchObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_CdObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_CdObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { Tcl_Obj *dir; int result; @@ -318,7 +426,7 @@ Tcl_CdObjCmd(dummy, interp, objc, objv) if (objc == 2) { dir = objv[1]; } else { - dir = Tcl_NewStringObj("~",1); + TclNewLiteralStringObj(dir, "~"); Tcl_IncrRefCount(dir); } if (Tcl_FSConvertToPathType(interp, dir) != TCL_OK) { @@ -326,8 +434,9 @@ Tcl_CdObjCmd(dummy, interp, objc, objv) } else { result = Tcl_FSChdir(dir); if (result != TCL_OK) { - Tcl_AppendResult(interp, "couldn't change working directory to \"", - TclGetString(dir), "\": ", Tcl_PosixError(interp), NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "couldn't change working directory to \"%s\": %s", + TclGetString(dir), Tcl_PosixError(interp))); result = TCL_ERROR; } } @@ -356,11 +465,11 @@ Tcl_CdObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_ConcatObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_ConcatObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { if (objc >= 2) { Tcl_SetObjResult(interp, Tcl_ConcatObj(objc-1, objv+1)); @@ -391,11 +500,11 @@ Tcl_ConcatObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_ContinueObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_ContinueObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { if (objc != 1) { Tcl_WrongNumArgs(interp, 1, objv, NULL); @@ -421,15 +530,15 @@ Tcl_ContinueObjCmd(dummy, interp, objc, objv) */ int -Tcl_EncodingObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_EncodingObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { int index; - static CONST char *optionStrings[] = { + static const char *const optionStrings[] = { "convertfrom", "convertto", "dirs", "names", "system", NULL }; @@ -448,81 +557,280 @@ Tcl_EncodingObjCmd(dummy, interp, objc, objv) switch ((enum options) index) { case ENC_CONVERTTO: - case ENC_CONVERTFROM: { - Tcl_Obj *data; - Tcl_DString ds; - Tcl_Encoding encoding; - int length; - char *stringPtr; - - if (objc == 3) { - encoding = Tcl_GetEncoding(interp, NULL); - data = objv[2]; - } else if (objc == 4) { - if (Tcl_GetEncodingFromObj(interp, objv[2], &encoding) != TCL_OK) { - return TCL_ERROR; - } - data = objv[3]; - } else { - Tcl_WrongNumArgs(interp, 2, objv, "?encoding? data"); - return TCL_ERROR; - } + return EncodingConverttoObjCmd(dummy, interp, objc, objv); + case ENC_CONVERTFROM: + return EncodingConvertfromObjCmd(dummy, interp, objc, objv); + case ENC_DIRS: + return EncodingDirsObjCmd(dummy, interp, objc, objv); + case ENC_NAMES: + return EncodingNamesObjCmd(dummy, interp, objc, objv); + case ENC_SYSTEM: + return EncodingSystemObjCmd(dummy, interp, objc, objv); + } + return TCL_OK; +} + +/* + *----------------------------------------------------------------------------- + * + * TclInitEncodingCmd -- + * + * This function creates the 'encoding' ensemble. + * + * Results: + * Returns the Tcl_Command so created. + * + * Side effects: + * The ensemble is initialized. + * + * This command is hidden in a safe interpreter. + */ - if ((enum options) index == ENC_CONVERTFROM) { - /* - * Treat the string as binary data. - */ +Tcl_Command +TclInitEncodingCmd( + Tcl_Interp* interp) /* Tcl interpreter */ +{ + static const EnsembleImplMap encodingImplMap[] = { + {"convertfrom", EncodingConvertfromObjCmd, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0}, + {"convertto", EncodingConverttoObjCmd, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0}, + {"dirs", EncodingDirsObjCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, + {"names", EncodingNamesObjCmd, TclCompileBasic0ArgCmd, NULL, NULL, 0}, + {"system", EncodingSystemObjCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, + {NULL, NULL, NULL, NULL, NULL, 0} + }; - stringPtr = (char *) Tcl_GetByteArrayFromObj(data, &length); - Tcl_ExternalToUtfDString(encoding, stringPtr, length, &ds); + return TclMakeEnsemble(interp, "encoding", encodingImplMap); +} + +/* + *----------------------------------------------------------------------------- + * + * TclMakeEncodingCommandSafe -- + * + * This function hides the unsafe 'dirs' and 'system' subcommands of + * the "encoding" Tcl command ensemble. It must be called only from + * TclHideUnsafeCommands. + * + * Results: + * A standard Tcl result + * + * Side effects: + * Adds commands to the table of hidden commands. + * + *----------------------------------------------------------------------------- + */ - /* - * Note that we cannot use Tcl_DStringResult here because it will - * truncate the string at the first null byte. - */ +int +TclMakeEncodingCommandSafe( + Tcl_Interp* interp) /* Tcl interpreter */ +{ + static const struct { + const char *cmdName; + int unsafe; + } unsafeInfo[] = { + {"convertfrom", 0}, + {"convertto", 0}, + {"dirs", 1}, + {"names", 0}, + {"system", 0}, + {NULL, 0} + }; - Tcl_SetObjResult(interp, Tcl_NewStringObj( - Tcl_DStringValue(&ds), Tcl_DStringLength(&ds))); - Tcl_DStringFree(&ds); - } else { - /* - * Store the result as binary data. - */ - - stringPtr = Tcl_GetStringFromObj(data, &length); - Tcl_UtfToExternalDString(encoding, stringPtr, length, &ds); - Tcl_SetObjResult(interp, Tcl_NewByteArrayObj( - (unsigned char *) Tcl_DStringValue(&ds), - Tcl_DStringLength(&ds))); - Tcl_DStringFree(&ds); + int i; + Tcl_DString oldBuf, newBuf; + + Tcl_DStringInit(&oldBuf); + TclDStringAppendLiteral(&oldBuf, "::tcl::encoding::"); + Tcl_DStringInit(&newBuf); + TclDStringAppendLiteral(&newBuf, "tcl:encoding:"); + for (i=0 ; unsafeInfo[i].cmdName != NULL ; i++) { + if (unsafeInfo[i].unsafe) { + const char *oldName, *newName; + + Tcl_DStringSetLength(&oldBuf, 17); + oldName = Tcl_DStringAppend(&oldBuf, unsafeInfo[i].cmdName, -1); + Tcl_DStringSetLength(&newBuf, 13); + newName = Tcl_DStringAppend(&newBuf, unsafeInfo[i].cmdName, -1); + if (TclRenameCommand(interp, oldName, "___tmp") != TCL_OK + || Tcl_HideCommand(interp, "___tmp", newName) != TCL_OK) { + Tcl_Panic("problem making 'encoding %s' safe: %s", + unsafeInfo[i].cmdName, + Tcl_GetString(Tcl_GetObjResult(interp))); + } + Tcl_CreateObjCommand(interp, oldName, BadEncodingSubcommand, + (ClientData) unsafeInfo[i].cmdName, NULL); } + } + Tcl_DStringFree(&oldBuf); + Tcl_DStringFree(&newBuf); - Tcl_FreeEncoding(encoding); - break; + /* + * Ugh. The [encoding] command is now actually safe, but it is assumed by + * scripts that it is not, which messes up security policies. + */ + + if (Tcl_HideCommand(interp, "encoding", "encoding") != TCL_OK) { + Tcl_Panic("problem making 'encoding' safe: %s", + Tcl_GetString(Tcl_GetObjResult(interp))); } - case ENC_DIRS: - return EncodingDirsObjCmd(dummy, interp, objc-1, objv+1); - case ENC_NAMES: - if (objc > 2) { - Tcl_WrongNumArgs(interp, 2, objv, NULL); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * BadEncodingSubcommand -- + * + * Command used to act as a backstop implementation when subcommands of + * "encoding" are unsafe (the real implementations of the subcommands are + * hidden). The clientData is always the full official subcommand name. + * + * Results: + * A standard Tcl result (always a TCL_ERROR). + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +BadEncodingSubcommand( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + const char *subcommandName = (const char *) clientData; + + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "not allowed to invoke subcommand %s of encoding", subcommandName)); + Tcl_SetErrorCode(interp, "TCL", "SAFE", "SUBCOMMAND", NULL); + return TCL_ERROR; +} + +/* + *---------------------------------------------------------------------- + * + * EncodingConvertfromObjCmd -- + * + * This command converts a byte array in an external encoding into a + * Tcl string + * + * Results: + * A standard Tcl result. + * + *---------------------------------------------------------------------- + */ + +int +EncodingConvertfromObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + Tcl_Obj *data; /* Byte array to convert */ + Tcl_DString ds; /* Buffer to hold the string */ + Tcl_Encoding encoding; /* Encoding to use */ + int length; /* Length of the byte array being converted */ + const char *bytesPtr; /* Pointer to the first byte of the array */ + + if (objc == 2) { + encoding = Tcl_GetEncoding(interp, NULL); + data = objv[1]; + } else if (objc == 3) { + if (Tcl_GetEncodingFromObj(interp, objv[1], &encoding) != TCL_OK) { return TCL_ERROR; } - Tcl_GetEncodingNames(interp); - break; - case ENC_SYSTEM: - if (objc > 3) { - Tcl_WrongNumArgs(interp, 2, objv, "?encoding?"); + data = objv[2]; + } else { + Tcl_WrongNumArgs(interp, 1, objv, "?encoding? data"); + return TCL_ERROR; + } + + /* + * Convert the string into a byte array in 'ds' + */ + bytesPtr = (char *) Tcl_GetByteArrayFromObj(data, &length); + Tcl_ExternalToUtfDString(encoding, bytesPtr, length, &ds); + + /* + * Note that we cannot use Tcl_DStringResult here because it will + * truncate the string at the first null byte. + */ + + Tcl_SetObjResult(interp, TclDStringToObj(&ds)); + + /* + * We're done with the encoding + */ + + Tcl_FreeEncoding(encoding); + return TCL_OK; + +} + +/* + *---------------------------------------------------------------------- + * + * EncodingConverttoObjCmd -- + * + * This command converts a Tcl string into a byte array that + * encodes the string according to some encoding. + * + * Results: + * A standard Tcl result. + * + *---------------------------------------------------------------------- + */ + +int +EncodingConverttoObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + Tcl_Obj *data; /* String to convert */ + Tcl_DString ds; /* Buffer to hold the byte array */ + Tcl_Encoding encoding; /* Encoding to use */ + int length; /* Length of the string being converted */ + const char *stringPtr; /* Pointer to the first byte of the string */ + + /* TODO - ADJUST OBJ INDICES WHEN ENSEMBLIFYING THIS */ + + if (objc == 2) { + encoding = Tcl_GetEncoding(interp, NULL); + data = objv[1]; + } else if (objc == 3) { + if (Tcl_GetEncodingFromObj(interp, objv[1], &encoding) != TCL_OK) { return TCL_ERROR; } - if (objc == 2) { - Tcl_SetObjResult(interp, Tcl_NewStringObj( - Tcl_GetEncodingName(NULL), -1)); - } else { - return Tcl_SetSystemEncoding(interp, TclGetString(objv[2])); - } - break; + data = objv[2]; + } else { + Tcl_WrongNumArgs(interp, 1, objv, "?encoding? data"); + return TCL_ERROR; } + + /* + * Convert the string to a byte array in 'ds' + */ + + stringPtr = TclGetStringFromObj(data, &length); + Tcl_UtfToExternalDString(encoding, stringPtr, length, &ds); + Tcl_SetObjResult(interp, + Tcl_NewByteArrayObj((unsigned char*) Tcl_DStringValue(&ds), + Tcl_DStringLength(&ds))); + Tcl_DStringFree(&ds); + + /* + * We're done with the encoding + */ + + Tcl_FreeEncoding(encoding); return TCL_OK; + } /* @@ -542,12 +850,14 @@ Tcl_EncodingObjCmd(dummy, interp, objc, objv) */ int -EncodingDirsObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +EncodingDirsObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { + Tcl_Obj *dirListObj; + if (objc > 2) { Tcl_WrongNumArgs(interp, 1, objv, "?dirList?"); return TCL_ERROR; @@ -556,12 +866,79 @@ EncodingDirsObjCmd(dummy, interp, objc, objv) Tcl_SetObjResult(interp, Tcl_GetEncodingSearchPath()); return TCL_OK; } - if (Tcl_SetEncodingSearchPath(objv[1]) == TCL_ERROR) { - Tcl_AppendResult(interp, "expected directory list but got \"", - Tcl_GetString(objv[1]), "\"", NULL); + + dirListObj = objv[1]; + if (Tcl_SetEncodingSearchPath(dirListObj) == TCL_ERROR) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "expected directory list but got \"%s\"", + TclGetString(dirListObj))); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "ENCODING", "BADPATH", + NULL); return TCL_ERROR; } - Tcl_SetObjResult(interp, objv[1]); + Tcl_SetObjResult(interp, dirListObj); + return TCL_OK; +} + +/* + *----------------------------------------------------------------------------- + * + * EncodingNamesObjCmd -- + * + * This command returns a list of the available encoding names + * + * Results: + * Returns a standard Tcl result + * + *----------------------------------------------------------------------------- + */ + +int +EncodingNamesObjCmd(ClientData dummy, /* Unused */ + Tcl_Interp* interp, /* Tcl interpreter */ + int objc, /* Number of command line args */ + Tcl_Obj* const objv[]) /* Vector of command line args */ +{ + if (objc > 1) { + Tcl_WrongNumArgs(interp, 1, objv, NULL); + return TCL_ERROR; + } + Tcl_GetEncodingNames(interp); + return TCL_OK; +} + +/* + *----------------------------------------------------------------------------- + * + * EncodingSystemObjCmd -- + * + * This command retrieves or changes the system encoding + * + * Results: + * Returns a standard Tcl result + * + * Side effects: + * May change the system encoding. + * + *----------------------------------------------------------------------------- + */ + +int +EncodingSystemObjCmd(ClientData dummy, /* Unused */ + Tcl_Interp* interp, /* Tcl interpreter */ + int objc, /* Number of command line args */ + Tcl_Obj* const objv[]) /* Vector of command line args */ +{ + if (objc > 2) { + Tcl_WrongNumArgs(interp, 1, objv, "?encoding?"); + return TCL_ERROR; + } + if (objc == 1) { + Tcl_SetObjResult(interp, + Tcl_NewStringObj(Tcl_GetEncodingName(NULL), -1)); + } else { + return Tcl_SetSystemEncoding(interp, TclGetString(objv[1])); + } return TCL_OK; } @@ -584,30 +961,30 @@ EncodingDirsObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_ErrorObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_ErrorObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - Tcl_Obj *options; + Tcl_Obj *options, *optName; if ((objc < 2) || (objc > 4)) { Tcl_WrongNumArgs(interp, 1, objv, "message ?errorInfo? ?errorCode?"); return TCL_ERROR; } - options = Tcl_NewStringObj("-code error -level 0", -1); + TclNewLiteralStringObj(options, "-code error -level 0"); - if (objc >= 3) { /* process the optional info argument */ - Tcl_ListObjAppendElement(NULL, options, - Tcl_NewStringObj("-errorinfo", -1)); + if (objc >= 3) { /* Process the optional info argument */ + TclNewLiteralStringObj(optName, "-errorinfo"); + Tcl_ListObjAppendElement(NULL, options, optName); Tcl_ListObjAppendElement(NULL, options, objv[2]); } - if (objc == 4) { /* process the optional code argument */ - Tcl_ListObjAppendElement(NULL, options, - Tcl_NewStringObj("-errorcode", -1)); + if (objc >= 4) { /* Process the optional code argument */ + TclNewLiteralStringObj(optName, "-errorcode"); + Tcl_ListObjAppendElement(NULL, options, optName); Tcl_ListObjAppendElement(NULL, options, objv[3]); } @@ -633,15 +1010,40 @@ Tcl_ErrorObjCmd(dummy, interp, objc, objv) */ /* ARGSUSED */ +static int +EvalCmdErrMsg( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + if (result == TCL_ERROR) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"eval\" body line %d)", Tcl_GetErrorLine(interp))); + } + return result; +} + int -Tcl_EvalObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_EvalObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNREvalObjCmd, dummy, objc, objv); +} + +int +TclNREvalObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - int result; register Tcl_Obj *objPtr; + Interp *iPtr = (Interp *) interp; + CmdFrame *invoker = NULL; + int word = 0; if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "arg ?arg ...?"); @@ -649,22 +1051,28 @@ Tcl_EvalObjCmd(dummy, interp, objc, objv) } if (objc == 2) { - result = Tcl_EvalObjEx(interp, objv[1], TCL_EVAL_DIRECT); + /* + * TIP #280. Make argument location available to eval'd script. + */ + + invoker = iPtr->cmdFramePtr; + word = 1; + objPtr = objv[1]; + TclArgumentGet(interp, objPtr, &invoker, &word); } else { /* * More than one argument: concatenate them together with spaces * between, then evaluate the result. Tcl_EvalObjEx will delete the * object when it decrements its refcount after eval'ing it. + * + * TIP #280. Make invoking context available to eval'd script, done + * with the default values. */ objPtr = Tcl_ConcatObj(objc-1, objv+1); - result = Tcl_EvalObjEx(interp, objPtr, TCL_EVAL_DIRECT); } - if (result == TCL_ERROR) { - TclFormatToErrorInfo(interp,"\n (\"eval\" body line %d)", - interp->errorLine); - } - return result; + TclNRAddCallback(interp, EvalCmdErrMsg, NULL, NULL, NULL, NULL); + return TclNREvalObjEx(interp, objPtr, 0, invoker, word); } /* @@ -686,11 +1094,11 @@ Tcl_EvalObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_ExitObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_ExitObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { int value; @@ -706,7 +1114,7 @@ Tcl_ExitObjCmd(dummy, interp, objc, objv) } Tcl_Exit(value); /*NOTREACHED*/ - return TCL_OK; /* Better not ever reach this! */ + return TCL_OK; /* Better not ever reach this! */ } /* @@ -735,44 +1143,73 @@ Tcl_ExitObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_ExprObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_ExprObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - register Tcl_Obj *objPtr; - Tcl_Obj *resultPtr; - int result; + return Tcl_NRCallObjProc(interp, TclNRExprObjCmd, dummy, objc, objv); +} + +int +TclNRExprObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + Tcl_Obj *resultPtr, *objPtr; if (objc < 2) { Tcl_WrongNumArgs(interp, 1, objv, "arg ?arg ...?"); return TCL_ERROR; } - objPtr = Tcl_ConcatObj(objc-1, objv+1); - Tcl_IncrRefCount(objPtr); - result = Tcl_ExprObj(interp, objPtr, &resultPtr); - Tcl_DecrRefCount(objPtr); + TclNewObj(resultPtr); + Tcl_IncrRefCount(resultPtr); + if (objc == 2) { + objPtr = objv[1]; + TclNRAddCallback(interp, ExprCallback, resultPtr, NULL, NULL, NULL); + } else { + objPtr = Tcl_ConcatObj(objc-1, objv+1); + TclNRAddCallback(interp, ExprCallback, resultPtr, objPtr, NULL, NULL); + } + + return Tcl_NRExprObj(interp, objPtr, resultPtr); +} + +static int +ExprCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Tcl_Obj *resultPtr = data[0]; + Tcl_Obj *objPtr = data[1]; + + if (objPtr != NULL) { + Tcl_DecrRefCount(objPtr); + } if (result == TCL_OK) { Tcl_SetObjResult(interp, resultPtr); - Tcl_DecrRefCount(resultPtr); /* done with the result object */ } - + Tcl_DecrRefCount(resultPtr); return result; } /* *---------------------------------------------------------------------- * - * Tcl_FileObjCmd -- + * TclInitFileCmd -- + * + * This function builds the "file" Tcl command ensemble. See the user + * documentation for details on what that ensemble does. * - * This procedure is invoked to process the "file" Tcl command. See the - * user documentation for details on what it does. PLEASE NOTE THAT THIS - * FAILS WITH FILENAMES AND PATHS WITH EMBEDDED NULLS. With the - * object-based Tcl_FS APIs, the above NOTE may no longer be true. In any - * case this assertion should be tested. + * PLEASE NOTE THAT THIS FAILS WITH FILENAMES AND PATHS WITH EMBEDDED + * NULLS. With the object-based Tcl_FS APIs, the above NOTE may no longer + * be true. In any case this assertion should be tested. * * Results: * A standard Tcl result. @@ -783,570 +1220,1226 @@ Tcl_ExprObjCmd(dummy, interp, objc, objv) *---------------------------------------------------------------------- */ - /* ARGSUSED */ -int -Tcl_FileObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_Command +TclInitFileCmd( + Tcl_Interp *interp) { - int index, value; - Tcl_StatBuf buf; - struct utimbuf tval; - /* - * This list of constants should match the fileOption string array below. + * Note that most subcommands are unsafe because either they manipulate + * the native filesystem or because they reveal information about the + * native filesystem. */ - static CONST char *fileOptions[] = { - "atime", "attributes", "channels", "copy", - "delete", - "dirname", "executable", "exists", "extension", - "isdirectory", "isfile", "join", "link", - "lstat", "mtime", "mkdir", "nativename", - "normalize", "owned", - "pathtype", "readable", "readlink", "rename", - "rootname", "separator", "size", "split", - "stat", "system", - "tail", "type", "volumes", "writable", - (char *) NULL + static const EnsembleImplMap initMap[] = { + {"atime", FileAttrAccessTimeCmd, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0}, + {"attributes", TclFileAttrsCmd, NULL, NULL, NULL, 0}, + {"channels", TclChannelNamesCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, + {"copy", TclFileCopyCmd, NULL, NULL, NULL, 0}, + {"delete", TclFileDeleteCmd, TclCompileBasicMin0ArgCmd, NULL, NULL, 0}, + {"dirname", PathDirNameCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"executable", FileAttrIsExecutableCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"exists", FileAttrIsExistingCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"extension", PathExtensionCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"isdirectory", FileAttrIsDirectoryCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"isfile", FileAttrIsFileCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"join", PathJoinCmd, TclCompileBasicMin1ArgCmd, NULL, NULL, 0}, + {"link", TclFileLinkCmd, TclCompileBasic1To3ArgCmd, NULL, NULL, 0}, + {"lstat", FileAttrLinkStatCmd, TclCompileBasic2ArgCmd, NULL, NULL, 0}, + {"mtime", FileAttrModifyTimeCmd, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0}, + {"mkdir", TclFileMakeDirsCmd, TclCompileBasicMin0ArgCmd, NULL, NULL, 0}, + {"nativename", PathNativeNameCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"normalize", PathNormalizeCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"owned", FileAttrIsOwnedCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"pathtype", PathTypeCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"readable", FileAttrIsReadableCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"readlink", TclFileReadLinkCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"rename", TclFileRenameCmd, NULL, NULL, NULL, 0}, + {"rootname", PathRootNameCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"separator", FilesystemSeparatorCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, + {"size", FileAttrSizeCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"split", PathSplitCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"stat", FileAttrStatCmd, TclCompileBasic2ArgCmd, NULL, NULL, 0}, + {"system", PathFilesystemCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, + {"tail", PathTailCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"tempfile", TclFileTemporaryCmd, TclCompileBasic0To2ArgCmd, NULL, NULL, 0}, + {"type", FileAttrTypeCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"volumes", FilesystemVolumesCmd, TclCompileBasic0ArgCmd, NULL, NULL, 0}, + {"writable", FileAttrIsWritableCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {NULL, NULL, NULL, NULL, NULL, 0} }; - enum options { - FCMD_ATIME, FCMD_ATTRIBUTES, FCMD_CHANNELS, FCMD_COPY, - FCMD_DELETE, - FCMD_DIRNAME, FCMD_EXECUTABLE, FCMD_EXISTS, FCMD_EXTENSION, - FCMD_ISDIRECTORY, FCMD_ISFILE, FCMD_JOIN, FCMD_LINK, - FCMD_LSTAT, FCMD_MTIME, FCMD_MKDIR, FCMD_NATIVENAME, - FCMD_NORMALIZE, FCMD_OWNED, - FCMD_PATHTYPE, FCMD_READABLE, FCMD_READLINK, FCMD_RENAME, - FCMD_ROOTNAME, FCMD_SEPARATOR, FCMD_SIZE, FCMD_SPLIT, - FCMD_STAT, FCMD_SYSTEM, - FCMD_TAIL, FCMD_TYPE, FCMD_VOLUMES, FCMD_WRITABLE + return TclMakeEnsemble(interp, "file", initMap); +} + +/* + *---------------------------------------------------------------------- + * + * TclMakeFileCommandSafe -- + * + * This function hides the unsafe subcommands of the "file" Tcl command + * ensemble. It must only be called from TclHideUnsafeCommands. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Adds commands to the table of hidden commands. + * + *---------------------------------------------------------------------- + */ + +int +TclMakeFileCommandSafe( + Tcl_Interp *interp) +{ + static const struct { + const char *cmdName; + int unsafe; + } unsafeInfo[] = { + {"atime", 1}, + {"attributes", 1}, + {"channels", 0}, + {"copy", 1}, + {"delete", 1}, + {"dirname", 1}, + {"executable", 1}, + {"exists", 1}, + {"extension", 1}, + {"isdirectory", 1}, + {"isfile", 1}, + {"join", 0}, + {"link", 1}, + {"lstat", 1}, + {"mtime", 1}, + {"mkdir", 1}, + {"nativename", 1}, + {"normalize", 1}, + {"owned", 1}, + {"pathtype", 0}, + {"readable", 1}, + {"readlink", 1}, + {"rename", 1}, + {"rootname", 1}, + {"separator", 0}, + {"size", 1}, + {"split", 0}, + {"stat", 1}, + {"system", 0}, + {"tail", 1}, + {"tempfile", 1}, + {"type", 1}, + {"volumes", 1}, + {"writable", 1}, + {NULL, 0} }; + int i; + Tcl_DString oldBuf, newBuf; + + Tcl_DStringInit(&oldBuf); + TclDStringAppendLiteral(&oldBuf, "::tcl::file::"); + Tcl_DStringInit(&newBuf); + TclDStringAppendLiteral(&newBuf, "tcl:file:"); + for (i=0 ; unsafeInfo[i].cmdName != NULL ; i++) { + if (unsafeInfo[i].unsafe) { + const char *oldName, *newName; + + Tcl_DStringSetLength(&oldBuf, 13); + oldName = Tcl_DStringAppend(&oldBuf, unsafeInfo[i].cmdName, -1); + Tcl_DStringSetLength(&newBuf, 9); + newName = Tcl_DStringAppend(&newBuf, unsafeInfo[i].cmdName, -1); + if (TclRenameCommand(interp, oldName, "___tmp") != TCL_OK + || Tcl_HideCommand(interp, "___tmp", newName) != TCL_OK) { + Tcl_Panic("problem making 'file %s' safe: %s", + unsafeInfo[i].cmdName, + Tcl_GetString(Tcl_GetObjResult(interp))); + } + Tcl_CreateObjCommand(interp, oldName, BadFileSubcommand, + (ClientData) unsafeInfo[i].cmdName, NULL); + } + } + Tcl_DStringFree(&oldBuf); + Tcl_DStringFree(&newBuf); - if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?"); + /* + * Ugh. The [file] command is now actually safe, but it is assumed by + * scripts that it is not, which messes up security policies. [Bug + * 3211758] + */ + + if (Tcl_HideCommand(interp, "file", "file") != TCL_OK) { + Tcl_Panic("problem making 'file' safe: %s", + Tcl_GetString(Tcl_GetObjResult(interp))); + } + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * BadFileSubcommand -- + * + * Command used to act as a backstop implementation when subcommands of + * "file" are unsafe (the real implementations of the subcommands are + * hidden). The clientData is always the full official subcommand name. + * + * Results: + * A standard Tcl result (always a TCL_ERROR). + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +BadFileSubcommand( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + const char *subcommandName = (const char *) clientData; + + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "not allowed to invoke subcommand %s of file", subcommandName)); + Tcl_SetErrorCode(interp, "TCL", "SAFE", "SUBCOMMAND", NULL); + return TCL_ERROR; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrAccessTimeCmd -- + * + * This function is invoked to process the "file atime" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * May update the access time on the file, if requested by the user. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrAccessTimeCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + struct utimbuf tval; + + if (objc < 2 || objc > 3) { + Tcl_WrongNumArgs(interp, 1, objv, "name ?time?"); return TCL_ERROR; } - if (Tcl_GetIndexFromObj(interp, objv[1], fileOptions, "option", 0, - &index) != TCL_OK) { + if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) { return TCL_ERROR; } +#if defined(_WIN32) + /* We use a value of 0 to indicate the access time not available */ + if (buf.st_atime == 0) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not get access time for file \"%s\"", + TclGetString(objv[1]))); + return TCL_ERROR; + } +#endif - switch ((enum options) index) { + if (objc == 3) { + /* + * Need separate variable for reading longs from an object on 64-bit + * platforms. [Bug 698146] + */ + + long newTime; - case FCMD_ATIME: - case FCMD_MTIME: - if ((objc < 3) || (objc > 4)) { - Tcl_WrongNumArgs(interp, 2, objv, "name ?time?"); + if (TclGetLongFromObj(interp, objv[2], &newTime) != TCL_OK) { return TCL_ERROR; } - if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) { + + tval.actime = newTime; + tval.modtime = buf.st_mtime; + + if (Tcl_FSUtime(objv[1], &tval) != 0) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set access time for file \"%s\": %s", + TclGetString(objv[1]), Tcl_PosixError(interp))); return TCL_ERROR; } - if (objc == 4) { - /* - * Need separate variable for reading longs from an object on - * 64-bit platforms. [Bug #698146] - */ - long newTime; + /* + * Do another stat to ensure that the we return the new recognized + * atime - hopefully the same as the one we sent in. However, fs's + * like FAT don't even know what atime is. + */ - if (Tcl_GetLongFromObj(interp, objv[3], &newTime) != TCL_OK) { - return TCL_ERROR; - } + if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) { + return TCL_ERROR; + } + } - if (index == FCMD_ATIME) { - tval.actime = newTime; - tval.modtime = buf.st_mtime; - } else { /* index == FCMD_MTIME */ - tval.actime = buf.st_atime; - tval.modtime = newTime; - } + Tcl_SetObjResult(interp, Tcl_NewLongObj((long) buf.st_atime)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrModifyTimeCmd -- + * + * This function is invoked to process the "file mtime" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * May update the modification time on the file, if requested by the + * user. + * + *---------------------------------------------------------------------- + */ - if (Tcl_FSUtime(objv[2], &tval) != 0) { - Tcl_AppendResult(interp, "could not set ", - (index == FCMD_ATIME ? "access" : "modification"), - " time for file \"", TclGetString(objv[2]), "\": ", - Tcl_PosixError(interp), (char *) NULL); - return TCL_ERROR; - } +static int +FileAttrModifyTimeCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + struct utimbuf tval; - /* - * Do another stat to ensure that the we return the new recognized - * atime - hopefully the same as the one we sent in. However, fs's - * like FAT don't even know what atime is. - */ + if (objc < 2 || objc > 3) { + Tcl_WrongNumArgs(interp, 1, objv, "name ?time?"); + return TCL_ERROR; + } + if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) { + return TCL_ERROR; + } +#if defined(_WIN32) + /* We use a value of 0 to indicate the modification time not available */ + if (buf.st_mtime == 0) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not get modification time for file \"%s\"", + TclGetString(objv[1]))); + return TCL_ERROR; + } +#endif + if (objc == 3) { + /* + * Need separate variable for reading longs from an object on 64-bit + * platforms. [Bug 698146] + */ - if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - } + long newTime; - Tcl_SetObjResult(interp, Tcl_NewLongObj((long) - (index == FCMD_ATIME ? buf.st_atime : buf.st_mtime))); - return TCL_OK; - case FCMD_ATTRIBUTES: - return TclFileAttrsCmd(interp, objc, objv); - case FCMD_CHANNELS: - if ((objc < 2) || (objc > 3)) { - Tcl_WrongNumArgs(interp, 2, objv, "?pattern?"); + if (TclGetLongFromObj(interp, objv[2], &newTime) != TCL_OK) { return TCL_ERROR; } - return Tcl_GetChannelNamesEx(interp, - ((objc == 2) ? NULL : TclGetString(objv[2]))); - case FCMD_COPY: - return TclFileCopyCmd(interp, objc, objv); - case FCMD_DELETE: - return TclFileDeleteCmd(interp, objc, objv); - case FCMD_DIRNAME: { - Tcl_Obj *dirPtr; - - if (objc != 3) { - goto only3Args; - } - dirPtr = TclPathPart(interp, objv[2], TCL_PATH_DIRNAME); - if (dirPtr == NULL) { + + tval.actime = buf.st_atime; + tval.modtime = newTime; + + if (Tcl_FSUtime(objv[1], &tval) != 0) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not set modification time for file \"%s\": %s", + TclGetString(objv[1]), Tcl_PosixError(interp))); return TCL_ERROR; - } else { - Tcl_SetObjResult(interp, dirPtr); - Tcl_DecrRefCount(dirPtr); - return TCL_OK; - } - } - case FCMD_EXECUTABLE: - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], X_OK); - case FCMD_EXISTS: - if (objc != 3) { - goto only3Args; } - return CheckAccess(interp, objv[2], F_OK); - case FCMD_EXTENSION: { - Tcl_Obj *ext; - if (objc != 3) { - goto only3Args; - } - ext = TclPathPart(interp, objv[2], TCL_PATH_EXTENSION); - if (ext != NULL) { - Tcl_SetObjResult(interp, ext); - Tcl_DecrRefCount(ext); - return TCL_OK; - } else { + /* + * Do another stat to ensure that the we return the new recognized + * mtime - hopefully the same as the one we sent in. + */ + + if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) { return TCL_ERROR; } } - case FCMD_ISDIRECTORY: - if (objc != 3) { - goto only3Args; - } - value = 0; - if (GetStatBuf(NULL, objv[2], Tcl_FSStat, &buf) == TCL_OK) { - value = S_ISDIR(buf.st_mode); - } - Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value)); - return TCL_OK; - case FCMD_ISFILE: - if (objc != 3) { - goto only3Args; - } - value = 0; - if (GetStatBuf(NULL, objv[2], Tcl_FSStat, &buf) == TCL_OK) { - value = S_ISREG(buf.st_mode); - } - Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value)); - return TCL_OK; - case FCMD_OWNED: - if (objc != 3) { - goto only3Args; - } - value = 0; - if (GetStatBuf(NULL, objv[2], Tcl_FSStat, &buf) == TCL_OK) { - /* - * For Windows, there are no user ids associated with a file, so - * we always return 1. - */ - -#if defined(__WIN32__) - value = 1; + + Tcl_SetObjResult(interp, Tcl_NewLongObj((long) buf.st_mtime)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrLinkStatCmd -- + * + * This function is invoked to process the "file lstat" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Writes to an array named by the user. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrLinkStatCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "name varName"); + return TCL_ERROR; + } + if (GetStatBuf(interp, objv[1], Tcl_FSLstat, &buf) != TCL_OK) { + return TCL_ERROR; + } + return StoreStatData(interp, objv[2], &buf); +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrStatCmd -- + * + * This function is invoked to process the "file stat" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Writes to an array named by the user. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrStatCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 1, objv, "name varName"); + return TCL_ERROR; + } + if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) { + return TCL_ERROR; + } + return StoreStatData(interp, objv[2], &buf); +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrTypeCmd -- + * + * This function is invoked to process the "file type" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrTypeCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + if (GetStatBuf(interp, objv[1], Tcl_FSLstat, &buf) != TCL_OK) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, Tcl_NewStringObj( + GetTypeFromMode((unsigned short) buf.st_mode), -1)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrSizeCmd -- + * + * This function is invoked to process the "file size" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrSizeCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + if (GetStatBuf(interp, objv[1], Tcl_FSStat, &buf) != TCL_OK) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, Tcl_NewWideIntObj((Tcl_WideInt) buf.st_size)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsDirectoryCmd -- + * + * This function is invoked to process the "file isdirectory" Tcl + * command. See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrIsDirectoryCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + int value = 0; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + if (GetStatBuf(NULL, objv[1], Tcl_FSStat, &buf) == TCL_OK) { + value = S_ISDIR(buf.st_mode); + } + Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsExecutableCmd -- + * + * This function is invoked to process the "file executable" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrIsExecutableCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + return CheckAccess(interp, objv[1], X_OK); +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsExistingCmd -- + * + * This function is invoked to process the "file exists" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrIsExistingCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + return CheckAccess(interp, objv[1], F_OK); +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsFileCmd -- + * + * This function is invoked to process the "file isfile" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrIsFileCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_StatBuf buf; + int value = 0; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + if (GetStatBuf(NULL, objv[1], Tcl_FSStat, &buf) == TCL_OK) { + value = S_ISREG(buf.st_mode); + } + Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsOwnedCmd -- + * + * This function is invoked to process the "file owned" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int +FileAttrIsOwnedCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ +#ifdef __CYGWIN__ +#define geteuid() (short)(geteuid)() +#endif +#if !defined(_WIN32) + Tcl_StatBuf buf; +#endif + int value = 0; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } +#if defined(_WIN32) + value = TclWinFileOwned(objv[1]); #else - value = (geteuid() == buf.st_uid); + if (GetStatBuf(NULL, objv[1], Tcl_FSStat, &buf) == TCL_OK) { + value = (geteuid() == buf.st_uid); + } #endif - } - Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value)); - return TCL_OK; - case FCMD_JOIN: { - Tcl_Obj *resObj; + Tcl_SetObjResult(interp, Tcl_NewBooleanObj(value)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsReadableCmd -- + * + * This function is invoked to process the "file readable" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "name ?name ...?"); - return TCL_ERROR; - } - resObj = Tcl_FSJoinToPath(NULL, objc - 2, objv + 2); - Tcl_SetObjResult(interp, resObj); - return TCL_OK; +static int +FileAttrIsReadableCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; } - case FCMD_LINK: { - Tcl_Obj *contents; - int index; + return CheckAccess(interp, objv[1], R_OK); +} + +/* + *---------------------------------------------------------------------- + * + * FileAttrIsWritableCmd -- + * + * This function is invoked to process the "file writable" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc < 3 || objc > 5) { - Tcl_WrongNumArgs(interp, 2, objv, "?-linktype? linkname ?target?"); - return TCL_ERROR; - } +static int +FileAttrIsWritableCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + return CheckAccess(interp, objv[1], W_OK); +} + +/* + *---------------------------------------------------------------------- + * + * PathDirNameCmd -- + * + * This function is invoked to process the "file dirname" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - /* - * Index of the 'source' argument. - */ +static int +PathDirNameCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *dirPtr; - if (objc == 5) { - index = 3; - } else { - index = 2; - } + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + dirPtr = TclPathPart(interp, objv[1], TCL_PATH_DIRNAME); + if (dirPtr == NULL) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, dirPtr); + Tcl_DecrRefCount(dirPtr); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathExtensionCmd -- + * + * This function is invoked to process the "file extension" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc > 3) { - int linkAction; - if (objc == 5) { - /* - * We have a '-linktype' argument. - */ - - static CONST char *linkTypes[] = { - "-symbolic", "-hard", NULL - }; - if (Tcl_GetIndexFromObj(interp, objv[2], linkTypes, "switch", - 0, &linkAction) != TCL_OK) { - return TCL_ERROR; - } - if (linkAction == 0) { - linkAction = TCL_CREATE_SYMBOLIC_LINK; - } else { - linkAction = TCL_CREATE_HARD_LINK; - } - } else { - linkAction = TCL_CREATE_SYMBOLIC_LINK|TCL_CREATE_HARD_LINK; - } - if (Tcl_FSConvertToPathType(interp, objv[index]) != TCL_OK) { - return TCL_ERROR; - } +static int +PathExtensionCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *dirPtr; - /* - * Create link from source to target. - */ - - contents = Tcl_FSLink(objv[index], objv[index+1], linkAction); - if (contents == NULL) { - /* - * We handle three common error cases specially, and for all - * other errors, we use the standard posix error message. - */ - - if (errno == EEXIST) { - Tcl_AppendResult(interp, "could not create new link \"", - TclGetString(objv[index]), - "\": that path already exists", (char *) NULL); - } else if (errno == ENOENT) { - /* - * There are two cases here: either the target doesn't - * exist, or the directory of the src doesn't exist. - */ - - int access; - Tcl_Obj *dirPtr = TclPathPart(interp, objv[index], - TCL_PATH_DIRNAME); - - if (dirPtr == NULL) { - return TCL_ERROR; - } - access = Tcl_FSAccess(dirPtr, F_OK); - Tcl_DecrRefCount(dirPtr); - if (access != 0) { - Tcl_AppendResult(interp, - "could not create new link \"", - TclGetString(objv[index]), - "\": no such file or directory", - (char *) NULL); - } else { - Tcl_AppendResult(interp, - "could not create new link \"", - TclGetString(objv[index]), "\": target \"", - TclGetString(objv[index+1]), - "\" doesn't exist", (char *) NULL); - } - } else { - Tcl_AppendResult(interp, - "could not create new link \"", - TclGetString(objv[index]), "\" pointing to \"", - TclGetString(objv[index+1]), "\": ", - Tcl_PosixError(interp), (char *) NULL); - } - return TCL_ERROR; - } - } else { - if (Tcl_FSConvertToPathType(interp, objv[index]) != TCL_OK) { - return TCL_ERROR; - } + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + dirPtr = TclPathPart(interp, objv[1], TCL_PATH_EXTENSION); + if (dirPtr == NULL) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, dirPtr); + Tcl_DecrRefCount(dirPtr); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathRootNameCmd -- + * + * This function is invoked to process the "file root" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - /* - * Read link - */ +static int +PathRootNameCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *dirPtr; - contents = Tcl_FSLink(objv[index], NULL, 0); - if (contents == NULL) { - Tcl_AppendResult(interp, "could not read link \"", - TclGetString(objv[index]), "\": ", - Tcl_PosixError(interp), (char *) NULL); - return TCL_ERROR; - } - } - Tcl_SetObjResult(interp, contents); - if (objc == 3) { - /* - * If we are reading a link, we need to free this result refCount. - * If we are creating a link, this will just be objv[index+1], and - * so we don't own it. - */ - - Tcl_DecrRefCount(contents); - } - return TCL_OK; + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; } - case FCMD_LSTAT: - if (objc != 4) { - Tcl_WrongNumArgs(interp, 2, objv, "name varName"); - return TCL_ERROR; - } - if (GetStatBuf(interp, objv[2], Tcl_FSLstat, &buf) != TCL_OK) { - return TCL_ERROR; - } - return StoreStatData(interp, objv[3], &buf); - case FCMD_STAT: - if (objc != 4) { - Tcl_WrongNumArgs(interp, 2, objv, "name varName"); - return TCL_ERROR; - } - if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - return StoreStatData(interp, objv[3], &buf); - case FCMD_SIZE: - if (objc != 3) { - goto only3Args; - } - if (GetStatBuf(interp, objv[2], Tcl_FSStat, &buf) != TCL_OK) { - return TCL_ERROR; - } - Tcl_SetObjResult(interp, - Tcl_NewWideIntObj((Tcl_WideInt) buf.st_size)); - return TCL_OK; - case FCMD_TYPE: - if (objc != 3) { - goto only3Args; - } - if (GetStatBuf(interp, objv[2], Tcl_FSLstat, &buf) != TCL_OK) { - return TCL_ERROR; - } - Tcl_SetObjResult(interp, Tcl_NewStringObj( - GetTypeFromMode((unsigned short) buf.st_mode), -1)); - return TCL_OK; - case FCMD_MKDIR: - if (objc < 3) { - Tcl_WrongNumArgs(interp, 2, objv, "name ?name ...?"); - return TCL_ERROR; - } - return TclFileMakeDirsCmd(interp, objc, objv); - case FCMD_NATIVENAME: { - CONST char *fileName; - Tcl_DString ds; + dirPtr = TclPathPart(interp, objv[1], TCL_PATH_ROOT); + if (dirPtr == NULL) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, dirPtr); + Tcl_DecrRefCount(dirPtr); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathTailCmd -- + * + * This function is invoked to process the "file tail" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc != 3) { - goto only3Args; - } - fileName = TclGetString(objv[2]); - fileName = Tcl_TranslateFileName(interp, fileName, &ds); - if (fileName == NULL) { - return TCL_ERROR; - } - Tcl_SetObjResult(interp, Tcl_NewStringObj(fileName, - Tcl_DStringLength(&ds))); - Tcl_DStringFree(&ds); - return TCL_OK; +static int +PathTailCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *dirPtr; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; } - case FCMD_NORMALIZE: { - Tcl_Obj *fileName; + dirPtr = TclPathPart(interp, objv[1], TCL_PATH_TAIL); + if (dirPtr == NULL) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, dirPtr); + Tcl_DecrRefCount(dirPtr); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathFilesystemCmd -- + * + * This function is invoked to process the "file system" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc != 3) { - Tcl_WrongNumArgs(interp, 2, objv, "filename"); - return TCL_ERROR; - } +static int +PathFilesystemCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *fsInfo; - fileName = Tcl_FSGetNormalizedPath(interp, objv[2]); - if (fileName == NULL) { - return TCL_ERROR; - } - Tcl_SetObjResult(interp, fileName); - return TCL_OK; + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; } - case FCMD_PATHTYPE: - if (objc != 3) { - goto only3Args; - } - switch (Tcl_FSGetPathType(objv[2])) { - case TCL_PATH_ABSOLUTE: - Tcl_SetObjResult(interp, Tcl_NewStringObj("absolute", -1)); - break; - case TCL_PATH_RELATIVE: - Tcl_SetObjResult(interp, Tcl_NewStringObj("relative", -1)); - break; - case TCL_PATH_VOLUME_RELATIVE: - Tcl_SetObjResult(interp, Tcl_NewStringObj("volumerelative", -1)); - break; - } - return TCL_OK; - case FCMD_READABLE: - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], R_OK); - case FCMD_READLINK: { - Tcl_Obj *contents; + fsInfo = Tcl_FSFileSystemInfo(objv[1]); + if (fsInfo == NULL) { + Tcl_SetObjResult(interp, Tcl_NewStringObj("unrecognised path", -1)); + Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "FILESYSTEM", + Tcl_GetString(objv[1]), NULL); + return TCL_ERROR; + } + Tcl_SetObjResult(interp, fsInfo); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathJoinCmd -- + * + * This function is invoked to process the "file join" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc != 3) { - goto only3Args; - } +static int +PathJoinCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name ?name ...?"); + return TCL_ERROR; + } + Tcl_SetObjResult(interp, TclJoinPath(objc - 1, objv + 1)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathNativeNameCmd -- + * + * This function is invoked to process the "file nativename" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (Tcl_FSConvertToPathType(interp, objv[2]) != TCL_OK) { - return TCL_ERROR; - } +static int +PathNativeNameCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_DString ds; - contents = Tcl_FSLink(objv[2], NULL, 0); + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + if (Tcl_TranslateFileName(interp, TclGetString(objv[1]), &ds) == NULL) { + return TCL_ERROR; + } + Tcl_SetObjResult(interp, TclDStringToObj(&ds)); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathNormalizeCmd -- + * + * This function is invoked to process the "file normalize" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (contents == NULL) { - Tcl_AppendResult(interp, "could not readlink \"", - TclGetString(objv[2]), "\": ", Tcl_PosixError(interp), - (char *) NULL); - return TCL_ERROR; - } - Tcl_SetObjResult(interp, contents); - Tcl_DecrRefCount(contents); - return TCL_OK; +static int +PathNormalizeCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *fileName; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + fileName = Tcl_FSGetNormalizedPath(interp, objv[1]); + if (fileName == NULL) { + return TCL_ERROR; } - case FCMD_RENAME: - return TclFileRenameCmd(interp, objc, objv); - case FCMD_ROOTNAME: { - Tcl_Obj *root; + Tcl_SetObjResult(interp, fileName); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathSplitCmd -- + * + * This function is invoked to process the "file split" Tcl command. See + * the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc != 3) { - goto only3Args; - } - root = TclPathPart(interp, objv[2], TCL_PATH_ROOT); - if (root != NULL) { - Tcl_SetObjResult(interp, root); - Tcl_DecrRefCount(root); - return TCL_OK; - } else { - return TCL_ERROR; - } +static int +PathSplitCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *res; + + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; } - case FCMD_SEPARATOR: - if ((objc < 2) || (objc > 3)) { - Tcl_WrongNumArgs(interp, 2, objv, "?name?"); - return TCL_ERROR; - } - if (objc == 2) { - char *separator = NULL; /* lint */ + res = Tcl_FSSplitPath(objv[1], NULL); + if (res == NULL) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": no such file or directory", + TclGetString(objv[1]))); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "PATHSPLIT", "NONESUCH", + NULL); + return TCL_ERROR; + } + Tcl_SetObjResult(interp, res); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * PathTypeCmd -- + * + * This function is invoked to process the "file pathtype" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - switch (tclPlatform) { - case TCL_PLATFORM_UNIX: - separator = "/"; - break; - case TCL_PLATFORM_WINDOWS: - separator = "\\"; - break; - } - Tcl_SetObjResult(interp, Tcl_NewStringObj(separator,1)); - } else { - Tcl_Obj *separatorObj = Tcl_FSPathSeparator(objv[2]); - if (separatorObj != NULL) { - Tcl_SetObjResult(interp, separatorObj); - } else { - Tcl_SetObjResult(interp, - Tcl_NewStringObj("Unrecognised path",-1)); - return TCL_ERROR; - } - } - return TCL_OK; - case FCMD_SPLIT: { - Tcl_Obj *res; +static int +PathTypeCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + Tcl_Obj *typeName; - if (objc != 3) { - goto only3Args; - } - res = Tcl_FSSplitPath(objv[2], NULL); - if (res == NULL) { - if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(objv[2]), - "\": no such file or directory", (char *) NULL); - } - return TCL_ERROR; - } else { - Tcl_SetObjResult(interp, res); - return TCL_OK; - } + if (objc != 2) { + Tcl_WrongNumArgs(interp, 1, objv, "name"); + return TCL_ERROR; + } + switch (Tcl_FSGetPathType(objv[1])) { + case TCL_PATH_ABSOLUTE: + TclNewLiteralStringObj(typeName, "absolute"); + break; + case TCL_PATH_RELATIVE: + TclNewLiteralStringObj(typeName, "relative"); + break; + case TCL_PATH_VOLUME_RELATIVE: + TclNewLiteralStringObj(typeName, "volumerelative"); + break; + default: + /* Should be unreachable */ + return TCL_OK; } - case FCMD_SYSTEM: { - Tcl_Obj* fsInfo; + Tcl_SetObjResult(interp, typeName); + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FilesystemSeparatorCmd -- + * + * This function is invoked to process the "file separator" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - if (objc != 3) { - goto only3Args; - } - fsInfo = Tcl_FSFileSystemInfo(objv[2]); - if (fsInfo != NULL) { - Tcl_SetObjResult(interp, fsInfo); - return TCL_OK; - } else { - Tcl_SetObjResult(interp, Tcl_NewStringObj("Unrecognised path",-1)); - return TCL_ERROR; - } +static int +FilesystemSeparatorCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc < 1 || objc > 2) { + Tcl_WrongNumArgs(interp, 1, objv, "?name?"); + return TCL_ERROR; } - case FCMD_TAIL: { - Tcl_Obj *dirPtr; + if (objc == 1) { + const char *separator = NULL; /* lint */ - if (objc != 3) { - goto only3Args; - } - dirPtr = TclPathPart(interp, objv[2], TCL_PATH_TAIL); - if (dirPtr == NULL) { - return TCL_ERROR; - } else { - Tcl_SetObjResult(interp, dirPtr); - Tcl_DecrRefCount(dirPtr); - return TCL_OK; + switch (tclPlatform) { + case TCL_PLATFORM_UNIX: + separator = "/"; + break; + case TCL_PLATFORM_WINDOWS: + separator = "\\"; + break; } - } - case FCMD_VOLUMES: - if (objc != 2) { - Tcl_WrongNumArgs(interp, 2, objv, NULL); + Tcl_SetObjResult(interp, Tcl_NewStringObj(separator, 1)); + } else { + Tcl_Obj *separatorObj = Tcl_FSPathSeparator(objv[1]); + + if (separatorObj == NULL) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "unrecognised path", -1)); + Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "FILESYSTEM", + Tcl_GetString(objv[1]), NULL); return TCL_ERROR; } - Tcl_SetObjResult(interp, Tcl_FSListVolumes()); - return TCL_OK; - case FCMD_WRITABLE: - if (objc != 3) { - goto only3Args; - } - return CheckAccess(interp, objv[2], W_OK); + Tcl_SetObjResult(interp, separatorObj); } + return TCL_OK; +} + +/* + *---------------------------------------------------------------------- + * + * FilesystemVolumesCmd -- + * + * This function is invoked to process the "file volumes" Tcl command. + * See the user documentation for details on what it does. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ - only3Args: - Tcl_WrongNumArgs(interp, 2, objv, "name"); - return TCL_ERROR; +static int +FilesystemVolumesCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + if (objc != 1) { + Tcl_WrongNumArgs(interp, 1, objv, NULL); + return TCL_ERROR; + } + Tcl_SetObjResult(interp, Tcl_FSListVolumes()); + return TCL_OK; } /* @@ -1368,11 +2461,11 @@ Tcl_FileObjCmd(dummy, interp, objc, objv) */ static int -CheckAccess(interp, pathPtr, mode) - Tcl_Interp *interp; /* Interp for status return. Must not be +CheckAccess( + Tcl_Interp *interp, /* Interp for status return. Must not be * NULL. */ - Tcl_Obj *pathPtr; /* Name of file to check. */ - int mode; /* Attribute to check; passed as argument to + Tcl_Obj *pathPtr, /* Name of file to check. */ + int mode) /* Attribute to check; passed as argument to * access(). */ { int value; @@ -1408,12 +2501,12 @@ CheckAccess(interp, pathPtr, mode) */ static int -GetStatBuf(interp, pathPtr, statProc, statPtr) - Tcl_Interp *interp; /* Interp for error return. May be NULL. */ - Tcl_Obj *pathPtr; /* Path name to examine. */ - Tcl_FSStatProc *statProc; /* Either stat() or lstat() depending on +GetStatBuf( + Tcl_Interp *interp, /* Interp for error return. May be NULL. */ + Tcl_Obj *pathPtr, /* Path name to examine. */ + Tcl_FSStatProc *statProc, /* Either stat() or lstat() depending on * desired behavior. */ - Tcl_StatBuf *statPtr; /* Filled with info about file obtained by + Tcl_StatBuf *statPtr) /* Filled with info about file obtained by * calling (*statProc)(). */ { int status; @@ -1422,13 +2515,13 @@ GetStatBuf(interp, pathPtr, statProc, statPtr) return TCL_ERROR; } - status = (*statProc)(pathPtr, statPtr); + status = statProc(pathPtr, statPtr); if (status < 0) { if (interp != NULL) { - Tcl_AppendResult(interp, "could not read \"", - TclGetString(pathPtr), "\": ", - Tcl_PosixError(interp), (char *) NULL); + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "could not read \"%s\": %s", + TclGetString(pathPtr), Tcl_PosixError(interp))); } return TCL_ERROR; } @@ -1455,37 +2548,37 @@ GetStatBuf(interp, pathPtr, statProc, statPtr) */ static int -StoreStatData(interp, varName, statPtr) - Tcl_Interp *interp; /* Interpreter for error reports. */ - Tcl_Obj *varName; /* Name of associative array variable in which +StoreStatData( + Tcl_Interp *interp, /* Interpreter for error reports. */ + Tcl_Obj *varName, /* Name of associative array variable in which * to store stat results. */ - Tcl_StatBuf *statPtr; /* Pointer to buffer containing stat data to + Tcl_StatBuf *statPtr) /* Pointer to buffer containing stat data to * store in varName. */ { - Tcl_Obj *field = Tcl_NewObj(); - Tcl_Obj *value; + Tcl_Obj *field, *value; register unsigned short mode; /* * Assume Tcl_ObjSetVar2() does not keep a copy of the field name! * - * Might be a better idea to call Tcl_SetVar2Ex() instead so we don't have - * to make assumptions that might go wrong later. + * Might be a better idea to call Tcl_SetVar2Ex() instead, except we want + * to have an object (i.e. possibly cached) array variable name but a + * string element name, so no API exists. Messy. */ #define STORE_ARY(fieldName, object) \ - Tcl_SetStringObj(field, (fieldName), -1); \ - value = (object); \ + TclNewLiteralStringObj(field, fieldName); \ + Tcl_IncrRefCount(field); \ + value = (object); \ if (Tcl_ObjSetVar2(interp,varName,field,value,TCL_LEAVE_ERR_MSG)==NULL) { \ - Tcl_DecrRefCount(field); \ - return TCL_ERROR; \ - } - - Tcl_IncrRefCount(field); + TclDecrRefCount(field); \ + return TCL_ERROR; \ + } \ + TclDecrRefCount(field); /* * Watch out porters; the inode is meant to be an *unsigned* value, so the - * cast might fail when there isn't a real arithmentic 'long long' type... + * cast might fail when there isn't a real arithmetic 'long long' type... */ STORE_ARY("dev", Tcl_NewLongObj((long)statPtr->st_dev)); @@ -1494,9 +2587,12 @@ StoreStatData(interp, varName, statPtr) STORE_ARY("uid", Tcl_NewLongObj((long)statPtr->st_uid)); STORE_ARY("gid", Tcl_NewLongObj((long)statPtr->st_gid)); STORE_ARY("size", Tcl_NewWideIntObj((Tcl_WideInt)statPtr->st_size)); -#ifdef HAVE_ST_BLOCKS +#ifdef HAVE_STRUCT_STAT_ST_BLOCKS STORE_ARY("blocks", Tcl_NewWideIntObj((Tcl_WideInt)statPtr->st_blocks)); #endif +#ifdef HAVE_STRUCT_STAT_ST_BLKSIZE + STORE_ARY("blksize", Tcl_NewLongObj((long)statPtr->st_blksize)); +#endif STORE_ARY("atime", Tcl_NewLongObj((long)statPtr->st_atime)); STORE_ARY("mtime", Tcl_NewLongObj((long)statPtr->st_mtime)); STORE_ARY("ctime", Tcl_NewLongObj((long)statPtr->st_ctime)); @@ -1505,7 +2601,6 @@ StoreStatData(interp, varName, statPtr) STORE_ARY("type", Tcl_NewStringObj(GetTypeFromMode(mode), -1)); #undef STORE_ARY - Tcl_DecrRefCount(field); return TCL_OK; } @@ -1525,9 +2620,9 @@ StoreStatData(interp, varName, statPtr) *---------------------------------------------------------------------- */ -static char * -GetTypeFromMode(mode) - int mode; +static const char * +GetTypeFromMode( + int mode) { if (S_ISREG(mode)) { return "file"; @@ -1570,77 +2665,210 @@ GetTypeFromMode(mode) * Side effects: * See the user documentation. * + * Notes: + * This command is split into a lot of pieces so that it can avoid doing + * reentrant TEBC calls. This makes things rather hard to follow, but + * here's the plan: + * + * NR: ---------------_\ + * Direct: Tcl_ForObjCmd -> TclNRForObjCmd + * | + * ForSetupCallback + * | + * [while] ------------> TclNRForIterCallback <---------. + * | | + * ForCondCallback | + * | | + * ForNextCallback ------------| + * | | + * ForPostNextCallback | + * |____________________| + * *---------------------------------------------------------------------- */ /* ARGSUSED */ int -Tcl_ForObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ +Tcl_ForObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRForObjCmd, dummy, objc, objv); +} + +int +TclNRForObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - int result, value; + Interp *iPtr = (Interp *) interp; + ForIterData *iterPtr; if (objc != 5) { Tcl_WrongNumArgs(interp, 1, objv, "start test next command"); return TCL_ERROR; } - result = Tcl_EvalObjEx(interp, objv[1], 0); + TclSmallAllocEx(interp, sizeof(ForIterData), iterPtr); + iterPtr->cond = objv[2]; + iterPtr->body = objv[4]; + iterPtr->next = objv[3]; + iterPtr->msg = "\n (\"for\" body line %d)"; + iterPtr->word = 4; + + TclNRAddCallback(interp, ForSetupCallback, iterPtr, NULL, NULL, NULL); + + /* + * TIP #280. Make invoking context available to initial script. + */ + + return TclNREvalObjEx(interp, objv[1], 0, iPtr->cmdFramePtr, 1); +} + +static int +ForSetupCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + ForIterData *iterPtr = data[0]; + if (result != TCL_OK) { if (result == TCL_ERROR) { Tcl_AddErrorInfo(interp, "\n (\"for\" initial command)"); } + TclSmallFreeEx(interp, iterPtr); return result; } - while (1) { + TclNRAddCallback(interp, TclNRForIterCallback, iterPtr, NULL, NULL, NULL); + return TCL_OK; +} + +int +TclNRForIterCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + ForIterData *iterPtr = data[0]; + Tcl_Obj *boolObj; + + switch (result) { + case TCL_OK: + case TCL_CONTINUE: /* - * We need to reset the result before passing it off to - * Tcl_ExprBooleanObj. Otherwise, any error message will be appended - * to the result of the last evaluation. + * We need to reset the result before evaluating the expression. + * Otherwise, any error message will be appended to the result of the + * last evaluation. */ Tcl_ResetResult(interp); - result = Tcl_ExprBooleanObj(interp, objv[2], &value); - if (result != TCL_OK) { - return result; - } - if (!value) { - break; - } - result = Tcl_EvalObjEx(interp, objv[4], 0); - if ((result != TCL_OK) && (result != TCL_CONTINUE)) { - if (result == TCL_ERROR) { - TclFormatToErrorInfo(interp, "\n (\"for\" body line %d)", - interp->errorLine); - } - break; - } - result = Tcl_EvalObjEx(interp, objv[3], 0); - if (result == TCL_BREAK) { - break; - } else if (result != TCL_OK) { - if (result == TCL_ERROR) { - Tcl_AddErrorInfo(interp, "\n (\"for\" loop-end command)"); - } - return result; + TclNewObj(boolObj); + TclNRAddCallback(interp, ForCondCallback, iterPtr, boolObj, NULL, + NULL); + return Tcl_NRExprObj(interp, iterPtr->cond, boolObj); + case TCL_BREAK: + result = TCL_OK; + Tcl_ResetResult(interp); + break; + case TCL_ERROR: + Tcl_AppendObjToErrorInfo(interp, + Tcl_ObjPrintf(iterPtr->msg, Tcl_GetErrorLine(interp))); + } + TclSmallFreeEx(interp, iterPtr); + return result; +} + +static int +ForCondCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Interp *iPtr = (Interp *) interp; + ForIterData *iterPtr = data[0]; + Tcl_Obj *boolObj = data[1]; + int value; + + if (result != TCL_OK) { + Tcl_DecrRefCount(boolObj); + TclSmallFreeEx(interp, iterPtr); + return result; + } else if (Tcl_GetBooleanFromObj(interp, boolObj, &value) != TCL_OK) { + Tcl_DecrRefCount(boolObj); + TclSmallFreeEx(interp, iterPtr); + return TCL_ERROR; + } + Tcl_DecrRefCount(boolObj); + + if (value) { + /* TIP #280. */ + if (iterPtr->next) { + TclNRAddCallback(interp, ForNextCallback, iterPtr, NULL, NULL, + NULL); + } else { + TclNRAddCallback(interp, TclNRForIterCallback, iterPtr, NULL, + NULL, NULL); } + return TclNREvalObjEx(interp, iterPtr->body, 0, iPtr->cmdFramePtr, + iterPtr->word); } - if (result == TCL_BREAK) { - result = TCL_OK; + TclSmallFreeEx(interp, iterPtr); + return result; +} + +static int +ForNextCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Interp *iPtr = (Interp *) interp; + ForIterData *iterPtr = data[0]; + Tcl_Obj *next = iterPtr->next; + + if ((result == TCL_OK) || (result == TCL_CONTINUE)) { + TclNRAddCallback(interp, ForPostNextCallback, iterPtr, NULL, NULL, + NULL); + + /* + * TIP #280. Make invoking context available to next script. + */ + + return TclNREvalObjEx(interp, next, 0, iPtr->cmdFramePtr, 3); } - if (result == TCL_OK) { - Tcl_ResetResult(interp); + + TclNRAddCallback(interp, TclNRForIterCallback, iterPtr, NULL, NULL, NULL); + return result; +} + +static int +ForPostNextCallback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + ForIterData *iterPtr = data[0]; + + if ((result != TCL_BREAK) && (result != TCL_OK)) { + if (result == TCL_ERROR) { + Tcl_AddErrorInfo(interp, "\n (\"for\" loop-end command)"); + TclSmallFreeEx(interp, iterPtr); + } + return result; } + TclNRAddCallback(interp, TclNRForIterCallback, iterPtr, NULL, NULL, NULL); return result; } /* *---------------------------------------------------------------------- * - * Tcl_ForeachObjCmd -- + * Tcl_ForeachObjCmd, TclNRForeachCmd, EachloopCmd -- * * This object-based procedure is invoked to process the "foreach" Tcl * command. See the user documentation for details on what it does. @@ -1656,42 +2884,57 @@ Tcl_ForObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_ForeachObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ -{ - int result = TCL_OK; - int i; /* i selects a value list */ - int j, maxj; /* Number of loop iterations */ - int v; /* v selects a loop variable */ - int numLists; /* Count of value lists */ - Tcl_Obj *bodyPtr; +Tcl_ForeachObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRForeachCmd, dummy, objc, objv); +} - /* - * We copy the argument object pointers into a local array to avoid the - * problem that "objv" might become invalid. It is a pointer into the - * evaluation stack and that stack might be grown and reallocated if the - * loop body requires a large amount of stack space. - */ +int +TclNRForeachCmd( + ClientData dummy, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + return EachloopCmd(interp, TCL_EACH_KEEP_NONE, objc, objv); +} -#define NUM_ARGS 9 - Tcl_Obj *(argObjStorage[NUM_ARGS]); - Tcl_Obj **argObjv = argObjStorage; +int +Tcl_LmapObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRLmapCmd, dummy, objc, objv); +} -#define STATIC_LIST_SIZE 4 - int indexArray[STATIC_LIST_SIZE]; - int varcListArray[STATIC_LIST_SIZE]; - Tcl_Obj **varvListArray[STATIC_LIST_SIZE]; - int argcListArray[STATIC_LIST_SIZE]; - Tcl_Obj **argvListArray[STATIC_LIST_SIZE]; +int +TclNRLmapCmd( + ClientData dummy, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const objv[]) +{ + return EachloopCmd(interp, TCL_EACH_COLLECT, objc, objv); +} - int *index = indexArray; /* Array of value list indices */ - int *varcList = varcListArray; /* # loop variables per list */ - Tcl_Obj ***varvList = varvListArray;/* Array of var name lists */ - int *argcList = argcListArray; /* Array of value list sizes */ - Tcl_Obj ***argvList = argvListArray;/* Array of value lists */ +static inline int +EachloopCmd( + Tcl_Interp *interp, /* Our context for variables and script + * evaluation. */ + int collect, /* Select collecting or accumulating mode + * (TCL_EACH_*) */ + int objc, /* The arguments being passed in... */ + Tcl_Obj *const objv[]) +{ + int numLists = (objc-2) / 2; + register struct ForeachState *statePtr; + int i, j, result; if (objc < 4 || (objc%2 != 0)) { Tcl_WrongNumArgs(interp, 1, objv, @@ -1700,155 +2943,244 @@ Tcl_ForeachObjCmd(dummy, interp, objc, objv) } /* - * Create the object argument array "argObjv". Make sure argObjv is large - * enough to hold the objc arguments. - */ - - if (objc > NUM_ARGS) { - argObjv = (Tcl_Obj **) ckalloc(objc * sizeof(Tcl_Obj *)); - } - for (i=0 ; i<objc ; i++) { - argObjv[i] = objv[i]; - } - - /* * Manage numList parallel value lists. - * argvList[i] is a value list counted by argcList[i]l; - * varvList[i] is the list of variables associated with the value list; - * varcList[i] is the number of variables associated with the value list; - * index[i] is the current pointer into the value list argvList[i]. + * statePtr->argvList[i] is a value list counted by statePtr->argcList[i]; + * statePtr->varvList[i] is the list of variables associated with the + * value list; + * statePtr->varcList[i] is the number of variables associated with the + * value list; + * statePtr->index[i] is the current pointer into the value list + * statePtr->argvList[i]. + * + * The setting up of all of these pointers is moderately messy, but allows + * the rest of this code to be simple and for us to use a single memory + * allocation for better performance. */ - numLists = (objc-2)/2; - if (numLists > STATIC_LIST_SIZE) { - index = (int *) ckalloc(numLists * sizeof(int)); - varcList = (int *) ckalloc(numLists * sizeof(int)); - varvList = (Tcl_Obj ***) ckalloc(numLists * sizeof(Tcl_Obj **)); - argcList = (int *) ckalloc(numLists * sizeof(int)); - argvList = (Tcl_Obj ***) ckalloc(numLists * sizeof(Tcl_Obj **)); - } - for (i = 0; i < numLists; i++) { - index[i] = 0; - varcList[i] = 0; - varvList[i] = (Tcl_Obj **) NULL; - argcList[i] = 0; - argvList[i] = (Tcl_Obj **) NULL; + statePtr = TclStackAlloc(interp, + sizeof(struct ForeachState) + 3 * numLists * sizeof(int) + + 2 * numLists * (sizeof(Tcl_Obj **) + sizeof(Tcl_Obj *))); + memset(statePtr, 0, + sizeof(struct ForeachState) + 3 * numLists * sizeof(int) + + 2 * numLists * (sizeof(Tcl_Obj **) + sizeof(Tcl_Obj *))); + statePtr->varvList = (Tcl_Obj ***) (statePtr + 1); + statePtr->argvList = statePtr->varvList + numLists; + statePtr->vCopyList = (Tcl_Obj **) (statePtr->argvList + numLists); + statePtr->aCopyList = statePtr->vCopyList + numLists; + statePtr->index = (int *) (statePtr->aCopyList + numLists); + statePtr->varcList = statePtr->index + numLists; + statePtr->argcList = statePtr->varcList + numLists; + + statePtr->numLists = numLists; + statePtr->bodyPtr = objv[objc - 1]; + statePtr->bodyIdx = objc - 1; + + if (collect == TCL_EACH_COLLECT) { + statePtr->resultList = Tcl_NewListObj(0, NULL); + } else { + statePtr->resultList = NULL; } /* * Break up the value lists and variable lists into elements. */ - maxj = 0; for (i=0 ; i<numLists ; i++) { - result = Tcl_ListObjGetElements(interp, argObjv[1+i*2], - &varcList[i], &varvList[i]); - if (result != TCL_OK) { + statePtr->vCopyList[i] = TclListObjCopy(interp, objv[1+i*2]); + if (statePtr->vCopyList[i] == NULL) { + result = TCL_ERROR; goto done; } - if (varcList[i] < 1) { - Tcl_AppendResult(interp, "foreach varlist is empty", NULL); + TclListObjGetElements(NULL, statePtr->vCopyList[i], + &statePtr->varcList[i], &statePtr->varvList[i]); + if (statePtr->varcList[i] < 1) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "%s varlist is empty", + (statePtr->resultList != NULL ? "lmap" : "foreach"))); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", + (statePtr->resultList != NULL ? "LMAP" : "FOREACH"), + "NEEDVARS", NULL); result = TCL_ERROR; goto done; } - result = Tcl_ListObjGetElements(interp, argObjv[2+i*2], - &argcList[i], &argvList[i]); - if (result != TCL_OK) { + statePtr->aCopyList[i] = TclListObjCopy(interp, objv[2+i*2]); + if (statePtr->aCopyList[i] == NULL) { + result = TCL_ERROR; goto done; } + TclListObjGetElements(NULL, statePtr->aCopyList[i], + &statePtr->argcList[i], &statePtr->argvList[i]); - j = argcList[i] / varcList[i]; - if ((argcList[i] % varcList[i]) != 0) { + j = statePtr->argcList[i] / statePtr->varcList[i]; + if ((statePtr->argcList[i] % statePtr->varcList[i]) != 0) { j++; } - if (j > maxj) { - maxj = j; + if (j > statePtr->maxj) { + statePtr->maxj = j; } } /* - * Iterate maxj times through the lists in parallel. If some value lists - * run out of values, set loop vars to "" + * If there is any work to do, assign the variables and set things going + * non-recursively. */ - bodyPtr = argObjv[objc-1]; - for (j=0 ; j<maxj ; j++) { - for (i=0 ; i<numLists ; i++) { - /* - * Refetch the list members; we assume that the sizes are the - * same, but the array of elements might be different if the - * internal rep of the objects has been lost and recreated (it is - * too difficult to accurately tell when this happens, which can - * lead to some wierd crashes, like Bug #494348...) - */ - - result = Tcl_ListObjGetElements(interp, argObjv[1+i*2], - &varcList[i], &varvList[i]); - if (result != TCL_OK) { - Tcl_Panic("Tcl_ForeachObjCmd: could not reconvert variable list %d to a list object\n", i); - } - result = Tcl_ListObjGetElements(interp, argObjv[2+i*2], - &argcList[i], &argvList[i]); - if (result != TCL_OK) { - Tcl_Panic("Tcl_ForeachObjCmd: could not reconvert value list %d to a list object\n", i); - } + if (statePtr->maxj > 0) { + result = ForeachAssignments(interp, statePtr); + if (result == TCL_ERROR) { + goto done; + } - for (v=0 ; v<varcList[i] ; v++) { - int k = index[i]++; - Tcl_Obj *valuePtr, *varValuePtr; - - if (k < argcList[i]) { - valuePtr = argvList[i][k]; - } else { - valuePtr = Tcl_NewObj(); /* empty string */ - } - varValuePtr = Tcl_ObjSetVar2(interp, varvList[i][v], - NULL, valuePtr, 0); - if (varValuePtr == NULL) { - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "couldn't set loop variable: \"", - TclGetString(varvList[i][v]), "\"", (char *) NULL); - result = TCL_ERROR; - goto done; - } - } + TclNRAddCallback(interp, ForeachLoopStep, statePtr, NULL, NULL, NULL); + return TclNREvalObjEx(interp, objv[objc-1], 0, + ((Interp *) interp)->cmdFramePtr, objc-1); + } + + /* + * This cleanup stage is only used when an error occurs during setup or if + * there is no work to do. + */ + + result = TCL_OK; + done: + ForeachCleanup(interp, statePtr); + return result; +} + +/* + * Post-body processing handler. + */ + +static int +ForeachLoopStep( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + register struct ForeachState *statePtr = data[0]; + + /* + * Process the result code from this run of the [foreach] body. Note that + * this switch uses fallthroughs in several places. Maintainer aware! + */ + + switch (result) { + case TCL_CONTINUE: + result = TCL_OK; + break; + case TCL_OK: + if (statePtr->resultList != NULL) { + Tcl_ListObjAppendElement(interp, statePtr->resultList, + Tcl_GetObjResult(interp)); } + break; + case TCL_BREAK: + result = TCL_OK; + goto finish; + case TCL_ERROR: + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"%s\" body line %d)", + (statePtr->resultList != NULL ? "lmap" : "foreach"), + Tcl_GetErrorLine(interp))); + default: + goto done; + } - result = Tcl_EvalObjEx(interp, bodyPtr, 0); - if (result != TCL_OK) { - if (result == TCL_CONTINUE) { - result = TCL_OK; - } else if (result == TCL_BREAK) { - result = TCL_OK; - break; - } else if (result == TCL_ERROR) { - TclFormatToErrorInfo(interp, - "\n (\"foreach\" body line %d)", interp->errorLine); - break; - } else { - break; - } + /* + * Test if there is work still to be done. If so, do the next round of + * variable assignments, reschedule ourselves and run the body again. + */ + + if (statePtr->maxj > ++statePtr->j) { + result = ForeachAssignments(interp, statePtr); + if (result == TCL_ERROR) { + goto done; } + + TclNRAddCallback(interp, ForeachLoopStep, statePtr, NULL, NULL, NULL); + return TclNREvalObjEx(interp, statePtr->bodyPtr, 0, + ((Interp *) interp)->cmdFramePtr, statePtr->bodyIdx); } - if (result == TCL_OK) { + + /* + * We're done. Tidy up our work space and finish off. + */ + + finish: + if (statePtr->resultList == NULL) { Tcl_ResetResult(interp); + } else { + Tcl_SetObjResult(interp, statePtr->resultList); + statePtr->resultList = NULL; /* Don't clean it up */ } done: - if (numLists > STATIC_LIST_SIZE) { - ckfree((char *) index); - ckfree((char *) varcList); - ckfree((char *) argcList); - ckfree((char *) varvList); - ckfree((char *) argvList); + ForeachCleanup(interp, statePtr); + return result; +} + +/* + * Factored out code to do the assignments in [foreach]. + */ + +static inline int +ForeachAssignments( + Tcl_Interp *interp, + struct ForeachState *statePtr) +{ + int i, v, k; + Tcl_Obj *valuePtr, *varValuePtr; + + for (i=0 ; i<statePtr->numLists ; i++) { + for (v=0 ; v<statePtr->varcList[i] ; v++) { + k = statePtr->index[i]++; + + if (k < statePtr->argcList[i]) { + valuePtr = statePtr->argvList[i][k]; + } else { + TclNewObj(valuePtr); /* Empty string */ + } + + varValuePtr = Tcl_ObjSetVar2(interp, statePtr->varvList[i][v], + NULL, valuePtr, TCL_LEAVE_ERR_MSG); + + if (varValuePtr == NULL) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (setting %s loop variable \"%s\")", + (statePtr->resultList != NULL ? "lmap" : "foreach"), + TclGetString(statePtr->varvList[i][v]))); + return TCL_ERROR; + } + } } - if (argObjv != argObjStorage) { - ckfree((char *) argObjv); + + return TCL_OK; +} + +/* + * Factored out code for cleaning up the state of the foreach. + */ + +static inline void +ForeachCleanup( + Tcl_Interp *interp, + struct ForeachState *statePtr) +{ + int i; + + for (i=0 ; i<statePtr->numLists ; i++) { + if (statePtr->vCopyList[i]) { + TclDecrRefCount(statePtr->vCopyList[i]); + } + if (statePtr->aCopyList[i]) { + TclDecrRefCount(statePtr->aCopyList[i]); + } } - return result; -#undef STATIC_LIST_SIZE -#undef NUM_ARGS + if (statePtr->resultList != NULL) { + TclDecrRefCount(statePtr->resultList); + } + TclStackFree(interp, statePtr); } /* @@ -1870,511 +3202,25 @@ Tcl_ForeachObjCmd(dummy, interp, objc, objv) /* ARGSUSED */ int -Tcl_FormatObjCmd(dummy, interp, objc, objv) - ClientData dummy; /* Not used. */ - Tcl_Interp *interp; /* Current interpreter. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument objects. */ -{ -#ifndef NEW_FORMAT - char *format; /* Used to read characters from the format - * string. */ - int formatLen; /* The length of the format string */ - char *endPtr; /* Points to the last char in format array */ - char newFormat[43]; /* A new format specifier is generated here. */ - int width; /* Field width from field specifier, or 0 if - * no width given. */ - int precision; /* Field precision from field specifier, or 0 - * if no precision given. */ - int size; /* Number of bytes needed for result of - * conversion, based on type of conversion - * ("e", "s", etc.), width, and precision. */ - long intValue; /* Used to hold value to pass to sprintf, if - * it's a one-word integer or char value */ - char *ptrValue = NULL; /* Used to hold value to pass to sprintf, if - * it's a one-word value. */ - double doubleValue; /* Used to hold value to pass to sprintf if - * it's a double value. */ - Tcl_WideInt wideValue; /* Used to hold value to pass to sprintf if - * it's a 'long long' value. */ - int whichValue; /* Indicates which of intValue, ptrValue, or - * doubleValue has the value to pass to - * sprintf, according to the following - * definitions: */ -#define INT_VALUE 0 -#define CHAR_VALUE 1 -#define PTR_VALUE 2 -#define DOUBLE_VALUE 3 -#define STRING_VALUE 4 -#define WIDE_VALUE 5 -#define MAX_FLOAT_SIZE 320 - -#endif +Tcl_FormatObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ Tcl_Obj *resultPtr; /* Where result is stored finally. */ -#ifndef NEW_FORMAT - char staticBuf[MAX_FLOAT_SIZE + 1]; - /* A static buffer to copy the format results - * into */ - char *dst = staticBuf; /* The buffer that sprintf writes into each - * time the format processes a specifier */ - int dstSize = MAX_FLOAT_SIZE; - /* The size of the dst buffer */ - int noPercent; /* Special case for speed: indicates there's - * no field specifier, just a string to - * copy. */ - int objIndex; /* Index of argument to substitute next. */ - int gotXpg = 0; /* Non-zero means that an XPG3 %n$-style - * specifier has been seen. */ - int gotSequential = 0; /* Non-zero means that a regular sequential - * (non-XPG3) conversion specifier has been - * seen. */ - int useShort; /* Value to be printed is short (half word). */ - char *end; /* Used to locate end of numerical fields. */ - int stringLen = 0; /* Length of string in characters rather than - * bytes. Used for %s substitution. */ - int gotMinus; /* Non-zero indicates that a minus flag has - * been seen in the current field. */ - int gotPrecision; /* Non-zero indicates that a precision has - * been set for the current field. */ - int gotZero; /* Non-zero indicates that a zero flag has - * been seen in the current field. */ - int useWide; /* Value to be printed is Tcl_WideInt. */ - - /* - * This procedure is a bit nasty. The goal is to use sprintf to do most of - * the dirty work. There are several problems: - * 1. this procedure can't trust its arguments. - * 2. we must be able to provide a large enough result area to hold - * whatever's generated. This is hard to estimate. - * 3. there's no way to move the arguments from objv to the call to - * sprintf in a reasonable way. This is particularly nasty because - * some of the arguments may be two-word values (doubles and - * wide-ints). - * So, what happens here is to scan the format string one % group at a - * time, making many individual calls to sprintf. - */ -#endif if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "formatString ?arg arg ...?"); + Tcl_WrongNumArgs(interp, 1, objv, "formatString ?arg ...?"); return TCL_ERROR; } -#ifdef NEW_FORMAT - resultPtr = Tcl_NewObj(); - Tcl_IncrRefCount(resultPtr); - if (TclAppendFormattedObjs(interp, resultPtr, Tcl_GetString(objv[1]), - objc-2, objv+2) != TCL_OK) { - Tcl_DecrRefCount(resultPtr); + resultPtr = Tcl_Format(interp, TclGetString(objv[1]), objc-2, objv+2); + if (resultPtr == NULL) { return TCL_ERROR; } Tcl_SetObjResult(interp, resultPtr); - Tcl_DecrRefCount(resultPtr); return TCL_OK; -#else - format = Tcl_GetStringFromObj(objv[1], &formatLen); - endPtr = format + formatLen; - resultPtr = Tcl_NewObj(); - objIndex = 2; - - while (format < endPtr) { - register char *newPtr = newFormat; - - width = precision = noPercent = useShort = 0; - gotZero = gotMinus = gotPrecision = 0; - useWide = 0; - whichValue = PTR_VALUE; - - /* - * Get rid of any characters before the next field specifier. - */ - - if (*format != '%') { - ptrValue = format; - while ((*format != '%') && (format < endPtr)) { - format++; - } - size = format - ptrValue; - noPercent = 1; - goto doField; - } - - if (format[1] == '%') { - ptrValue = format; - size = 1; - noPercent = 1; - format += 2; - goto doField; - } - - /* - * Parse off a field specifier, compute how many characters will be - * needed to store the result, and substitute for "*" size specifiers. - */ - - *newPtr = '%'; - newPtr++; - format++; - if (isdigit(UCHAR(*format))) { /* INTL: Tcl source. */ - int tmp; - - /* - * Check for an XPG3-style %n$ specification. Note: there must not - * be a mixture of XPG3 specs and non-XPG3 specs in the same - * format string. - */ - - tmp = strtoul(format, &end, 10); /* INTL: "C" locale. */ - if (*end != '$') { - goto notXpg; - } - format = end+1; - gotXpg = 1; - if (gotSequential) { - goto mixedXPG; - } - objIndex = tmp+1; - if ((objIndex < 2) || (objIndex >= objc)) { - goto badIndex; - } - goto xpgCheckDone; - } - - notXpg: - gotSequential = 1; - if (gotXpg) { - goto mixedXPG; - } - - xpgCheckDone: - while ((*format == '-') || (*format == '#') || (*format == '0') - || (*format == ' ') || (*format == '+')) { - if (*format == '-') { - gotMinus = 1; - } - if (*format == '0') { - /* - * This will be handled by sprintf for numbers, but we need to - * do the char/string ones ourselves. - */ - - gotZero = 1; - } - *newPtr = *format; - newPtr++; - format++; - } - if (isdigit(UCHAR(*format))) { /* INTL: Tcl source. */ - width = strtoul(format, &end, 10); /* INTL: Tcl source. */ - format = end; - } else if (*format == '*') { - if (objIndex >= objc) { - goto badIndex; - } - if (Tcl_GetIntFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &width) != TCL_OK) { - goto fmtError; - } - if (width < 0) { - width = -width; - *newPtr = '-'; - gotMinus = 1; - newPtr++; - } - objIndex++; - format++; - } - if (width > 100000) { - /* - * Don't allow arbitrarily large widths: could cause core dump - * when we try to allocate a zillion bytes of memory below. - */ - - width = 100000; - } else if (width < 0) { - width = 0; - } - if (width != 0) { - TclFormatInt(newPtr, width); /* INTL: printf format. */ - while (*newPtr != 0) { - newPtr++; - } - } - if (*format == '.') { - *newPtr = '.'; - newPtr++; - format++; - gotPrecision = 1; - } - if (isdigit(UCHAR(*format))) { /* INTL: Tcl source. */ - precision = strtoul(format, &end, 10); /* INTL: "C" locale. */ - format = end; - } else if (*format == '*') { - if (objIndex >= objc) { - goto badIndex; - } - if (Tcl_GetIntFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &precision) != TCL_OK) { - goto fmtError; - } - objIndex++; - format++; - } - if (gotPrecision) { - TclFormatInt(newPtr, precision); /* INTL: printf format. */ - while (*newPtr != 0) { - newPtr++; - } - } - if (*format == 'l') { - useWide = 1; - - /* - * Only add a 'll' modifier for integer values as it makes some - * libc's go into spasm otherwise. [Bug #702622] - */ - - switch (format[1]) { - case 'i': - case 'd': - case 'o': - case 'u': - case 'x': - case 'X': - strcpy(newPtr, TCL_LL_MODIFIER); - newPtr += TCL_LL_MODIFIER_SIZE; - } - format++; - } else if (*format == 'h') { - useShort = 1; - *newPtr = 'h'; - newPtr++; - format++; - } - *newPtr = *format; - newPtr++; - *newPtr = 0; - if (objIndex >= objc) { - goto badIndex; - } - switch (*format) { - case 'i': - newPtr[-1] = 'd'; - case 'd': - case 'o': - case 'u': - case 'x': - case 'X': - if (useWide) { - if (Tcl_GetWideIntFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &wideValue) != TCL_OK) { - goto fmtError; - } - whichValue = WIDE_VALUE; - size = 40 + precision; - break; - } - if (Tcl_GetLongFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &intValue) != TCL_OK) { - goto fmtError; - } -#if (LONG_MAX > INT_MAX) - if (!useShort) { - /* - * Add the 'l' for long format type because we are on an LP64 - * archtecture and we are really going to pass a long argument - * to sprintf. - * - * Do not add this if we're going to pass in a short (i.e. if - * we've got an 'h' modifier already in the string); some libc - * implementations of sprintf() do not like it at all. [Bug - * 1154163] - */ - - newPtr++; - *newPtr = 0; - newPtr[-1] = newPtr[-2]; - newPtr[-2] = 'l'; - } -#endif /* LONG_MAX > INT_MAX */ - whichValue = INT_VALUE; - size = 40 + precision; - break; - case 's': - /* - * Compute the length of the string in characters and add any - * additional space required by the field width. All of the extra - * characters will be spaces, so one byte per character is - * adequate. - */ - - whichValue = STRING_VALUE; - ptrValue = Tcl_GetStringFromObj(objv[objIndex], &size); - stringLen = Tcl_NumUtfChars(ptrValue, size); - if (gotPrecision && (precision < stringLen)) { - stringLen = precision; - } - size = Tcl_UtfAtIndex(ptrValue, stringLen) - ptrValue; - if (width > stringLen) { - size += (width - stringLen); - } - break; - case 'c': - if (Tcl_GetLongFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &intValue) != TCL_OK) { - goto fmtError; - } - whichValue = CHAR_VALUE; - size = width + TCL_UTF_MAX; - break; - case 'e': - case 'E': - case 'f': - case 'g': - case 'G': - if (Tcl_GetDoubleFromObj(interp, /* INTL: Tcl source. */ - objv[objIndex], &doubleValue) != TCL_OK) { - /*TODO: figure out ACCEPT_NAN */ - goto fmtError; - } - whichValue = DOUBLE_VALUE; - size = MAX_FLOAT_SIZE; - if (precision > 10) { - size += precision; - } - break; - case 0: - Tcl_SetResult(interp, - "format string ended in middle of field specifier", - TCL_STATIC); - goto fmtError; - default: - { - char buf[40]; - - sprintf(buf, "bad field specifier \"%c\"", *format); - Tcl_SetResult(interp, buf, TCL_VOLATILE); - goto fmtError; - } - } - objIndex++; - format++; - - /* - * Make sure that there's enough space to hold the formatted result, - * then format it. - */ - - doField: - if (width > size) { - size = width; - } - if (noPercent) { - Tcl_AppendToObj(resultPtr, ptrValue, size); - } else { - if (size > dstSize) { - if (dst != staticBuf) { - ckfree(dst); - } - dst = (char *) ckalloc((unsigned) (size + 1)); - dstSize = size; - } - switch (whichValue) { - case DOUBLE_VALUE: - sprintf(dst, newFormat, doubleValue); /* INTL: user locale. */ - break; - case WIDE_VALUE: - sprintf(dst, newFormat, wideValue); - break; - case INT_VALUE: - if (useShort) { - sprintf(dst, newFormat, (short) intValue); - } else { - sprintf(dst, newFormat, intValue); - } - break; - case CHAR_VALUE: { - char *ptr; - char padChar = (gotZero ? '0' : ' '); - ptr = dst; - if (!gotMinus) { - for ( ; --width > 0; ptr++) { - *ptr = padChar; - } - } - ptr += Tcl_UniCharToUtf(intValue, ptr); - for ( ; --width > 0; ptr++) { - *ptr = padChar; - } - *ptr = '\0'; - break; - } - case STRING_VALUE: { - char *ptr; - char padChar = (gotZero ? '0' : ' '); - int pad; - - ptr = dst; - if (width > stringLen) { - pad = width - stringLen; - } else { - pad = 0; - } - - if (!gotMinus) { - while (pad > 0) { - *ptr++ = padChar; - pad--; - } - } - - size = Tcl_UtfAtIndex(ptrValue, stringLen) - ptrValue; - if (size) { - memcpy(ptr, ptrValue, (size_t) size); - ptr += size; - } - while (pad > 0) { - *ptr++ = padChar; - pad--; - } - *ptr = '\0'; - break; - } - default: - sprintf(dst, newFormat, ptrValue); - break; - } - Tcl_AppendToObj(resultPtr, dst, -1); - } - } - - Tcl_SetObjResult(interp, resultPtr); - if (dst != staticBuf) { - ckfree(dst); - } - return TCL_OK; - - mixedXPG: - Tcl_SetResult(interp, - "cannot mix \"%\" and \"%n$\" conversion specifiers", TCL_STATIC); - goto fmtError; - - badIndex: - if (gotXpg) { - Tcl_SetResult(interp, - "\"%n$\" argument index out of range", TCL_STATIC); - } else { - Tcl_SetResult(interp, - "not enough arguments for all format specifiers", TCL_STATIC); - } - - fmtError: - if (dst != staticBuf) { - ckfree(dst); - } - Tcl_DecrRefCount(resultPtr); - return TCL_ERROR; -#endif } /* |