diff options
Diffstat (limited to 'generic/tclFCmd.c')
| -rw-r--r-- | generic/tclFCmd.c | 779 |
1 files changed, 437 insertions, 342 deletions
diff --git a/generic/tclFCmd.c b/generic/tclFCmd.c index 5af8630..2b4977b 100644 --- a/generic/tclFCmd.c +++ b/generic/tclFCmd.c @@ -1,41 +1,39 @@ /* * tclFCmd.c * - * This file implements the generic portion of file manipulation - * subcommands of the "file" command. + * This file implements the generic portion of file manipulation + * subcommands of the "file" command. * * Copyright (c) 1996-1998 Sun Microsystems, Inc. * - * See the file "license.terms" for information on usage and redistribution - * of this file, and for a DISCLAIMER OF ALL WARRANTIES. + * See the file "license.terms" for information on usage and redistribution of + * this file, and for a DISCLAIMER OF ALL WARRANTIES. */ #include "tclInt.h" -#include "tclPort.h" /* - * Declarations for local procedures defined in this file: + * Declarations for local functions defined in this file: */ -static int CopyRenameOneFile _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr, - int copyFlag, int force)); -static Tcl_Obj * FileBasename _ANSI_ARGS_((Tcl_Interp *interp, - Tcl_Obj *pathPtr)); -static int FileCopyRename _ANSI_ARGS_((Tcl_Interp *interp, - int objc, Tcl_Obj *CONST objv[], int copyFlag)); -static int FileForceOption _ANSI_ARGS_((Tcl_Interp *interp, - int objc, Tcl_Obj *CONST objv[], int *forcePtr)); +static int CopyRenameOneFile(Tcl_Interp *interp, + Tcl_Obj *srcPathPtr, Tcl_Obj *destPathPtr, + int copyFlag, int force); +static Tcl_Obj * FileBasename(Tcl_Interp *interp, Tcl_Obj *pathPtr); +static int FileCopyRename(Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[], int copyFlag); +static int FileForceOption(Tcl_Interp *interp, + int objc, Tcl_Obj *CONST objv[], int *forcePtr); /* *--------------------------------------------------------------------------- * * TclFileRenameCmd * - * This procedure implements the "rename" subcommand of the "file" - * command. Filename arguments need to be translated to native - * format before being passed to platform-specific code that - * implements rename functionality. + * This function implements the "rename" subcommand of the "file" + * command. Filename arguments need to be translated to native format + * before being passed to platform-specific code that implements rename + * functionality. * * Results: * A standard Tcl result. @@ -47,10 +45,11 @@ static int FileForceOption _ANSI_ARGS_((Tcl_Interp *interp, */ int -TclFileRenameCmd(interp, objc, objv) - Tcl_Interp *interp; /* Interp for error reporting. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument strings passed to Tcl_FileCmd. */ +TclFileRenameCmd( + Tcl_Interp *interp, /* Interp for error reporting or recursive + * calls in the case of a tricky rename. */ + int objc, /* Number of arguments. */ + Tcl_Obj *CONST objv[]) /* Argument strings passed to Tcl_FileCmd. */ { return FileCopyRename(interp, objc, objv, 0); } @@ -60,10 +59,9 @@ TclFileRenameCmd(interp, objc, objv) * * TclFileCopyCmd * - * This procedure implements the "copy" subcommand of the "file" - * command. Filename arguments need to be translated to native - * format before being passed to platform-specific code that - * implements copy functionality. + * This function implements the "copy" subcommand of the "file" command. + * Filename arguments need to be translated to native format before being + * passed to platform-specific code that implements copy functionality. * * Results: * A standard Tcl result. @@ -75,10 +73,11 @@ TclFileRenameCmd(interp, objc, objv) */ int -TclFileCopyCmd(interp, objc, objv) - Tcl_Interp *interp; /* Used for error reporting */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument strings passed to Tcl_FileCmd. */ +TclFileCopyCmd( + Tcl_Interp *interp, /* Used for error reporting or recursive calls + * in the case of a tricky copy. */ + int objc, /* Number of arguments. */ + Tcl_Obj *CONST objv[]) /* Argument strings passed to Tcl_FileCmd. */ { return FileCopyRename(interp, objc, objv, 1); } @@ -88,8 +87,8 @@ TclFileCopyCmd(interp, objc, objv) * * FileCopyRename -- * - * Performs the work of TclFileRenameCmd and TclFileCopyCmd. - * See comments for those procedures. + * Performs the work of TclFileRenameCmd and TclFileCopyCmd. See + * comments for those functions. * * Results: * See above. @@ -101,15 +100,15 @@ TclFileCopyCmd(interp, objc, objv) */ static int -FileCopyRename(interp, objc, objv, copyFlag) - Tcl_Interp *interp; /* Used for error reporting. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument strings passed to Tcl_FileCmd. */ - int copyFlag; /* If non-zero, copy source(s). Otherwise, +FileCopyRename( + Tcl_Interp *interp, /* Used for error reporting. */ + int objc, /* Number of arguments. */ + Tcl_Obj *CONST objv[], /* Argument strings passed to Tcl_FileCmd. */ + int copyFlag) /* If non-zero, copy source(s). Otherwise, * rename them. */ { int i, result, force; - Tcl_StatBuf statBuf; + Tcl_StatBuf statBuf; Tcl_Obj *target; i = FileForceOption(interp, objc - 2, objv + 2, &force); @@ -118,10 +117,9 @@ FileCopyRename(interp, objc, objv, copyFlag) } i += 2; if ((objc - i) < 2) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - Tcl_GetString(objv[0]), " ", Tcl_GetString(objv[1]), - " ?options? source ?source ...? target\"", - (char *) NULL); + Tcl_AppendResult(interp, "wrong # args: should be \"", + TclGetString(objv[0]), " ", TclGetString(objv[1]), + " ?options? source ?source ...? target\"", NULL); return TCL_ERROR; } @@ -149,15 +147,14 @@ FileCopyRename(interp, objc, objv, copyFlag) errno = ENOTDIR; Tcl_PosixError(interp); Tcl_AppendResult(interp, "error ", - ((copyFlag) ? "copying" : "renaming"), ": target \"", - Tcl_GetString(target), "\" is not a directory", - (char *) NULL); + (copyFlag ? "copying" : "renaming"), ": target \"", + TclGetString(target), "\" is not a directory", NULL); result = TCL_ERROR; } else { /* - * Even though already have target == translated(objv[i+1]), - * pass the original argument down, so if there's an error, the - * error message will reflect the original arguments. + * Even though already have target == translated(objv[i+1]), pass + * the original argument down, so if there's an error, the error + * message will reflect the original arguments. */ result = CopyRenameOneFile(interp, objv[i], objv[i + 1], copyFlag, @@ -165,17 +162,17 @@ FileCopyRename(interp, objc, objv, copyFlag) } return result; } - + /* - * Move each source file into target directory. Extract the basename - * from each source, and append it to the end of the target path. + * Move each source file into target directory. Extract the basename from + * each source, and append it to the end of the target path. */ - for ( ; i < objc - 1; i++) { + for ( ; i<objc-1 ; i++) { Tcl_Obj *jargv[2]; Tcl_Obj *source, *newFileName; Tcl_Obj *temp; - + source = FileBasename(interp, objv[i]); if (source == NULL) { result = TCL_ERROR; @@ -204,10 +201,9 @@ FileCopyRename(interp, objc, objv, copyFlag) * * TclFileMakeDirsCmd * - * This procedure implements the "mkdir" subcommand of the "file" - * command. Filename arguments need to be translated to native - * format before being passed to platform-specific code that - * implements mkdir functionality. + * This function implements the "mkdir" subcommand of the "file" command. + * Filename arguments need to be translated to native format before being + * passed to platform-specific code that implements mkdir functionality. * * Results: * A standard Tcl result. @@ -217,11 +213,12 @@ FileCopyRename(interp, objc, objv, copyFlag) * *---------------------------------------------------------------------- */ + int -TclFileMakeDirsCmd(interp, objc, objv) - Tcl_Interp *interp; /* Used for error reporting. */ - int objc; /* Number of arguments */ - Tcl_Obj *CONST objv[]; /* Argument strings passed to Tcl_FileCmd. */ +TclFileMakeDirsCmd( + Tcl_Interp *interp, /* Used for error reporting. */ + int objc, /* Number of arguments */ + Tcl_Obj *CONST objv[]) /* Argument strings passed to Tcl_FileCmd. */ { Tcl_Obj *errfile; int result, i, j, pobjc; @@ -239,6 +236,7 @@ TclFileMakeDirsCmd(interp, objc, objv) } split = Tcl_FSSplitPath(objv[i],&pobjc); + Tcl_IncrRefCount(split); if (pobjc == 0) { errno = ENOENT; errfile = objv[i]; @@ -247,10 +245,10 @@ TclFileMakeDirsCmd(interp, objc, objv) for (j = 0; j < pobjc; j++) { target = Tcl_FSJoinPath(split, j + 1); Tcl_IncrRefCount(target); + /* - * Call Tcl_FSStat() so that if target is a symlink that - * points to a directory we will create subdirectories in - * that directory. + * Call Tcl_FSStat() so that if target is a symlink that points to + * a directory we will create subdirectories in that directory. */ if (Tcl_FSStat(target, &statBuf) == 0) { @@ -261,25 +259,27 @@ TclFileMakeDirsCmd(interp, objc, objv) } } else if (errno != ENOENT) { /* - * If Tcl_FSStat() failed and the error is anything - * other than non-existence of the target, throw the - * error. + * If Tcl_FSStat() failed and the error is anything other than + * non-existence of the target, throw the error. */ + errfile = target; goto done; } else if (Tcl_FSCreateDirectory(target) != TCL_OK) { /* * Create might have failed because of being in a race - * condition with another process trying to create the - * same subdirectory. + * condition with another process trying to create the same + * subdirectory. */ + if (errno == EEXIST) { if ((Tcl_FSStat(target, &statBuf) == 0) && S_ISDIR(statBuf.st_mode)) { /* - * It is a directory that wasn't there before, - * so keep going without error. + * It is a directory that wasn't there before, so keep + * going without error. */ + Tcl_ResetResult(interp); } else { errfile = target; @@ -290,7 +290,11 @@ TclFileMakeDirsCmd(interp, objc, objv) goto done; } } - /* Forget about this sub-path */ + + /* + * Forget about this sub-path. + */ + Tcl_DecrRefCount(target); target = NULL; } @@ -298,11 +302,10 @@ TclFileMakeDirsCmd(interp, objc, objv) split = NULL; } - done: + done: if (errfile != NULL) { Tcl_AppendResult(interp, "can't create directory \"", - Tcl_GetString(errfile), "\": ", Tcl_PosixError(interp), - (char *) NULL); + TclGetString(errfile), "\": ", Tcl_PosixError(interp), NULL); result = TCL_ERROR; } if (split != NULL) { @@ -319,8 +322,8 @@ TclFileMakeDirsCmd(interp, objc, objv) * * TclFileDeleteCmd * - * This procedure implements the "delete" subcommand of the "file" - * command. + * This function implements the "delete" subcommand of the "file" + * command. * * Results: * A standard Tcl result. @@ -332,24 +335,24 @@ TclFileMakeDirsCmd(interp, objc, objv) */ int -TclFileDeleteCmd(interp, objc, objv) - Tcl_Interp *interp; /* Used for error reporting */ - int objc; /* Number of arguments */ - Tcl_Obj *CONST objv[]; /* Argument strings passed to Tcl_FileCmd. */ +TclFileDeleteCmd( + Tcl_Interp *interp, /* Used for error reporting */ + int objc, /* Number of arguments */ + Tcl_Obj *CONST objv[]) /* Argument strings passed to Tcl_FileCmd. */ { int i, force, result; Tcl_Obj *errfile; Tcl_Obj *errorBuffer = NULL; - + i = FileForceOption(interp, objc - 2, objv + 2, &force); if (i < 0) { return TCL_ERROR; } i += 2; if ((objc - i) < 1) { - Tcl_AppendResult(interp, "wrong # args: should be \"", - Tcl_GetString(objv[0]), " ", Tcl_GetString(objv[1]), - " ?options? file ?file ...?\"", (char *) NULL); + Tcl_AppendResult(interp, "wrong # args: should be \"", + TclGetString(objv[0]), " ", TclGetString(objv[1]), + " ?options? file ?file ...?\"", NULL); return TCL_ERROR; } @@ -371,34 +374,39 @@ TclFileDeleteCmd(interp, objc, objv) if (Tcl_FSLstat(objv[i], &statBuf) != 0) { /* - * Trying to delete a file that does not exist is not - * considered an error, just a no-op + * Trying to delete a file that does not exist is not considered + * an error, just a no-op */ if (errno != ENOENT) { result = TCL_ERROR; } } else if (S_ISDIR(statBuf.st_mode)) { - /* - * We own a reference count on errorBuffer, if it was set - * as a result of this call. + /* + * We own a reference count on errorBuffer, if it was set as a + * result of this call. */ + result = Tcl_FSRemoveDirectory(objv[i], force, &errorBuffer); if (result != TCL_OK) { if ((force == 0) && (errno == EEXIST)) { - Tcl_AppendResult(interp, "error deleting \"", - Tcl_GetString(objv[i]), - "\": directory not empty", (char *) NULL); + Tcl_AppendResult(interp, "error deleting \"", + TclGetString(objv[i]), "\": directory not empty", + NULL); Tcl_PosixError(interp); goto done; } - /* + /* * If possible, use the untranslated name for the file. */ - + errfile = errorBuffer; - /* FS supposed to check between translated objv and errfile */ + + /* + * FS supposed to check between translated objv and errfile. + */ + if (Tcl_FSEqualPaths(objv[i], errfile)) { errfile = objv[i]; } @@ -406,32 +414,34 @@ TclFileDeleteCmd(interp, objc, objv) } else { result = Tcl_FSDeleteFile(objv[i]); } - + if (result != TCL_OK) { result = TCL_ERROR; - /* - * It is important that we break on error, otherwise we - * might end up owning reference counts on numerous - * errorBuffers. + + /* + * It is important that we break on error, otherwise we might end + * up owning reference counts on numerous errorBuffers. */ + break; } } if (result != TCL_OK) { if (errfile == NULL) { - /* - * We try to accomodate poor error results from our - * Tcl_FS calls + /* + * We try to accomodate poor error results from our Tcl_FS calls. */ - Tcl_AppendResult(interp, "error deleting unknown file: ", - Tcl_PosixError(interp), (char *) NULL); + + Tcl_AppendResult(interp, "error deleting unknown file: ", + Tcl_PosixError(interp), NULL); } else { - Tcl_AppendResult(interp, "error deleting \"", - Tcl_GetString(errfile), "\": ", - Tcl_PosixError(interp), (char *) NULL); + Tcl_AppendResult(interp, "error deleting \"", + TclGetString(errfile), "\": ", Tcl_PosixError(interp), + NULL); } - } - done: + } + + done: if (errorBuffer != NULL) { Tcl_DecrRefCount(errorBuffer); } @@ -443,37 +453,37 @@ TclFileDeleteCmd(interp, objc, objv) * * CopyRenameOneFile * - * Copies or renames specified source file or directory hierarchy - * to the specified target. + * Copies or renames specified source file or directory hierarchy to the + * specified target. * * Results: * A standard Tcl result. * * Side effects: - * Target is overwritten if the force flag is set. Attempting to - * copy/rename a file onto a directory or a directory onto a file - * will always result in an error. + * Target is overwritten if the force flag is set. Attempting to + * copy/rename a file onto a directory or a directory onto a file will + * always result in an error. * *---------------------------------------------------------------------- */ static int -CopyRenameOneFile(interp, source, target, copyFlag, force) - Tcl_Interp *interp; /* Used for error reporting. */ - Tcl_Obj *source; /* Pathname of file to copy. May need to - * be translated. */ - Tcl_Obj *target; /* Pathname of file to create/overwrite. - * May need to be translated. */ - int copyFlag; /* If non-zero, copy files. Otherwise, - * rename them. */ - int force; /* If non-zero, overwrite target file if it - * exists. Otherwise, error if target already +CopyRenameOneFile( + Tcl_Interp *interp, /* Used for error reporting. */ + Tcl_Obj *source, /* Pathname of file to copy. May need to be + * translated. */ + Tcl_Obj *target, /* Pathname of file to create/overwrite. May + * need to be translated. */ + int copyFlag, /* If non-zero, copy files. Otherwise, rename + * them. */ + int force) /* If non-zero, overwrite target file if it + * exists. Otherwise, error if target already * exists. */ { int result; Tcl_Obj *errfile, *errorBuffer; - /* If source is a link, then this is the real file/directory */ - Tcl_Obj *actualSource = NULL; + Tcl_Obj *actualSource=NULL; /* If source is a link, then this is the real + * file/directory. */ Tcl_StatBuf sourceStatBuf, targetStatBuf; if (Tcl_FSConvertToPathType(interp, source) != TCL_OK) { @@ -482,16 +492,15 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) if (Tcl_FSConvertToPathType(interp, target) != TCL_OK) { return TCL_ERROR; } - + errfile = NULL; errorBuffer = NULL; result = TCL_ERROR; - + /* - * We want to copy/rename links and not the files they point to, so we - * use lstat(). If target is a link, we also want to replace the - * link and not the file it points to, so we also use lstat() on the - * target. + * We want to copy/rename links and not the files they point to, so we use + * lstat(). If target is a link, we also want to replace the link and not + * the file it points to, so we also use lstat() on the target. */ if (Tcl_FSLstat(source, &sourceStatBuf) != 0) { @@ -510,44 +519,65 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) goto done; } - /* - * Prevent copying or renaming a file onto itself. Under Windows, - * stat always returns 0 for st_ino. However, the Windows-specific - * code knows how to deal with copying or renaming a file on top of - * itself. It might be a good idea to write a stat that worked. - */ - - if ((sourceStatBuf.st_ino != 0) && (targetStatBuf.st_ino != 0)) { - if ((sourceStatBuf.st_ino == targetStatBuf.st_ino) && - (sourceStatBuf.st_dev == targetStatBuf.st_dev)) { - result = TCL_OK; - goto done; - } - } + /* + * Prevent copying or renaming a file onto itself. On Windows since + * 8.5 we do get an inode number, however the unsigned short field is + * insufficient to accept the Win32 API file id so it is truncated to + * 16 bits and we get collisions. See bug #2015723. + */ + +#ifndef WIN32 + if ((sourceStatBuf.st_ino != 0) && (targetStatBuf.st_ino != 0)) { + if ((sourceStatBuf.st_ino == targetStatBuf.st_ino) && + (sourceStatBuf.st_dev == targetStatBuf.st_dev)) { + result = TCL_OK; + goto done; + } + } +#endif /* - * Prevent copying/renaming a file onto a directory and - * vice-versa. This is a policy decision based on the fact that - * existing implementations of copy and rename on all platforms - * also prevent this. + * Prevent copying/renaming a file onto a directory and vice-versa. + * This is a policy decision based on the fact that existing + * implementations of copy and rename on all platforms also prevent + * this. */ if (S_ISDIR(sourceStatBuf.st_mode) - && !S_ISDIR(targetStatBuf.st_mode)) { + && !S_ISDIR(targetStatBuf.st_mode)) { errno = EISDIR; - Tcl_AppendResult(interp, "can't overwrite file \"", - Tcl_GetString(target), "\" with directory \"", - Tcl_GetString(source), "\"", (char *) NULL); + Tcl_AppendResult(interp, "can't overwrite file \"", + TclGetString(target), "\" with directory \"", + TclGetString(source), "\"", NULL); goto done; } if (!S_ISDIR(sourceStatBuf.st_mode) - && S_ISDIR(targetStatBuf.st_mode)) { + && S_ISDIR(targetStatBuf.st_mode)) { errno = EISDIR; - Tcl_AppendResult(interp, "can't overwrite directory \"", - Tcl_GetString(target), "\" with file \"", - Tcl_GetString(source), "\"", (char *) NULL); + Tcl_AppendResult(interp, "can't overwrite directory \"", + TclGetString(target), "\" with file \"", + TclGetString(source), "\"", NULL); goto done; } + + /* + * The destination exists, but appears to be ok to over-write, and + * -force is given. We now try to adjust permissions to ensure the + * operation succeeds. If we can't adjust permissions, we'll let the + * actual copy/rename return an error later. + */ + + { + Tcl_Obj *perm; + int index; + + TclNewLiteralStringObj(perm, "u+w"); + Tcl_IncrRefCount(perm); + if (TclFSFileAttrIndex(target, "-permissions", &index) == TCL_OK) { + Tcl_FSFileAttrsSet(NULL, index, target, perm); + } + Tcl_DecrRefCount(perm); + } } if (copyFlag == 0) { @@ -555,62 +585,95 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) if (result == TCL_OK) { goto done; } - + if (errno == EINVAL) { - Tcl_AppendResult(interp, "error renaming \"", - Tcl_GetString(source), "\" to \"", - Tcl_GetString(target), "\": trying to rename a volume or ", - "move a directory into itself", (char *) NULL); + Tcl_AppendResult(interp, "error renaming \"", + TclGetString(source), "\" to \"", TclGetString(target), + "\": trying to rename a volume or " + "move a directory into itself", NULL); goto done; } else if (errno != EXDEV) { errfile = target; goto done; } - + /* - * The rename failed because the move was across file systems. - * Fall through to copy file and then remove original. Note that - * the low-level Tcl_FSRenameFileProc in the filesystem is allowed - * to implement cross-filesystem moves itself, if it desires. + * The rename failed because the move was across file systems. Fall + * through to copy file and then remove original. Note that the + * low-level Tcl_FSRenameFileProc in the filesystem is allowed to + * implement cross-filesystem moves itself, if it desires. */ } actualSource = source; Tcl_IncrRefCount(actualSource); + + /* + * Activate the following block to copy files instead of links. However + * Tcl's semantics currently say we should copy links, so any such change + * should be the subject of careful study on the consequences. + * + * Perhaps there could be an optional flag to 'file copy' to dictate which + * approach to use, with the default being _not_ to have this block + * active. + */ + #if 0 #ifdef S_ISLNK - /* - * To add a flag to make 'copy' copy links instead of files, we could - * add a condition to ignore this 'if' here. - */ if (copyFlag && S_ISLNK(sourceStatBuf.st_mode)) { - /* - * We want to copy files not links. Therefore we must follow the - * link. There are two purposes to this 'stat' call here. First - * we want to know if the linked-file/dir actually exists, and - * second, in the block of code which follows, some 20 lines - * down, we want to check if the thing is a file or directory. + /* + * We want to copy files not links. Therefore we must follow the link. + * There are two purposes to this 'stat' call here. First we want to + * know if the linked-file/dir actually exists, and second, in the + * block of code which follows, some 20 lines down, we want to check + * if the thing is a file or directory. */ + if (Tcl_FSStat(source, &sourceStatBuf) != 0) { - /* Actual file doesn't exist */ - Tcl_AppendResult(interp, - "error copying \"", Tcl_GetString(source), - "\": the target of this link doesn't exist", - (char *) NULL); + /* + * Actual file doesn't exist. + */ + + Tcl_AppendResult(interp, "error copying \"", TclGetString(source), + "\": the target of this link doesn't exist", NULL); goto done; } else { int counter = 0; + while (1) { Tcl_Obj *path = Tcl_FSLink(actualSource, NULL, 0); if (path == NULL) { break; } + + /* + * Now we want to check if this is a relative path, and if so, + * to make it absolute. + */ + + if (Tcl_FSGetPathType(path) == TCL_PATH_RELATIVE) { + Tcl_Obj *abs = Tcl_FSJoinToPath(actualSource, 1, &path); + + if (abs == NULL) { + break; + } + Tcl_IncrRefCount(abs); + Tcl_DecrRefCount(path); + path = abs; + } Tcl_DecrRefCount(actualSource); actualSource = path; counter++; - /* Arbitrary limit of 20 links to follow */ + + /* + * Arbitrary limit of 20 links to follow. + */ + if (counter > 20) { - /* Too many links */ + /* + * Too many links. + */ + Tcl_SetErrno(EMLINK); errfile = source; goto done; @@ -619,47 +682,43 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) /* Now 'actualSource' is the correct file */ } } -#endif +#endif /* S_ISLNK */ #endif if (S_ISDIR(sourceStatBuf.st_mode)) { result = Tcl_FSCopyDirectory(actualSource, target, &errorBuffer); if (result != TCL_OK) { if (errno == EXDEV) { - /* + /* * The copy failed because we're trying to do a - * cross-filesystem copy. We do this through our Tcl - * library. + * cross-filesystem copy. We do this through our Tcl library. */ - Tcl_SavedResult savedResult; - Tcl_Obj *copyCommand = Tcl_NewListObj(0,NULL); - Tcl_IncrRefCount(copyCommand); - Tcl_ListObjAppendElement(interp, copyCommand, - Tcl_NewStringObj("::tcl::CopyDirectory",-1)); + + Tcl_Obj *copyCommand, *cmdObj, *opObj; + + TclNewObj(copyCommand); + TclNewLiteralStringObj(cmdObj, "::tcl::CopyDirectory"); + Tcl_ListObjAppendElement(interp, copyCommand, cmdObj); if (copyFlag) { - Tcl_ListObjAppendElement(interp, copyCommand, - Tcl_NewStringObj("copying",-1)); + TclNewLiteralStringObj(opObj, "copying"); } else { - Tcl_ListObjAppendElement(interp, copyCommand, - Tcl_NewStringObj("renaming",-1)); + TclNewLiteralStringObj(opObj, "renaming"); } + Tcl_ListObjAppendElement(interp, copyCommand, opObj); Tcl_ListObjAppendElement(interp, copyCommand, source); Tcl_ListObjAppendElement(interp, copyCommand, target); - Tcl_SaveResult(interp, &savedResult); - result = Tcl_EvalObjEx(interp, copyCommand, - TCL_EVAL_GLOBAL | TCL_EVAL_DIRECT); + Tcl_IncrRefCount(copyCommand); + result = Tcl_EvalObjEx(interp, copyCommand, + TCL_EVAL_GLOBAL | TCL_EVAL_DIRECT); Tcl_DecrRefCount(copyCommand); if (result != TCL_OK) { - /* - * There was an error in the Tcl-level copy. - * We will pass on the Tcl error message and - * can ensure this by setting errfile to NULL + /* + * There was an error in the Tcl-level copy. We will pass + * on the Tcl error message and can ensure this by setting + * errfile to NULL */ - Tcl_DiscardResult(&savedResult); + errfile = NULL; - } else { - /* The copy was successful */ - Tcl_RestoreResult(interp, &savedResult); } } else { errfile = errorBuffer; @@ -676,19 +735,22 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) result = TclCrossFilesystemCopy(interp, source, target); } if (result != TCL_OK) { - /* - * We could examine 'errno' to double-check if the problem - * was with the target, but we checked the source above, - * so it should be quite clear + /* + * We could examine 'errno' to double-check if the problem was + * with the target, but we checked the source above, so it should + * be quite clear */ + errfile = target; - /* - * We now need to reset the result, because the above call, - * if it failed, may have put an error message in place. - * (Ideally we would prefer not to pass an interpreter in - * above, but the channel IO code used by - * TclCrossFilesystemCopy currently requires one) + + /* + * We now need to reset the result, because the above call, if it + * failed, may have put an error message in place. (Ideally we + * would prefer not to pass an interpreter in above, but the + * channel IO code used by TclCrossFilesystemCopy currently + * requires one). */ + Tcl_ResetResult(interp); } } @@ -707,31 +769,26 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) } } if (result != TCL_OK) { - Tcl_AppendResult(interp, "can't unlink \"", - Tcl_GetString(errfile), "\": ", - Tcl_PosixError(interp), (char *) NULL); + Tcl_AppendResult(interp, "can't unlink \"", TclGetString(errfile), + "\": ", Tcl_PosixError(interp), NULL); errfile = NULL; } } - - done: + + done: if (errfile != NULL) { - Tcl_AppendResult(interp, - ((copyFlag) ? "error copying \"" : "error renaming \""), - Tcl_GetString(source), (char *) NULL); + Tcl_AppendResult(interp, "error ", (copyFlag ? "copying" : "renaming"), + " \"", TclGetString(source), NULL); if (errfile != source) { - Tcl_AppendResult(interp, "\" to \"", Tcl_GetString(target), - (char *) NULL); + Tcl_AppendResult(interp, "\" to \"", TclGetString(target), NULL); if (errfile != target) { - Tcl_AppendResult(interp, "\": \"", Tcl_GetString(errfile), - (char *) NULL); + Tcl_AppendResult(interp, "\": \"", TclGetString(errfile),NULL); } } - Tcl_AppendResult(interp, "\": ", Tcl_PosixError(interp), - (char *) NULL); + Tcl_AppendResult(interp, "\": ", Tcl_PosixError(interp), NULL); } if (errorBuffer != NULL) { - Tcl_DecrRefCount(errorBuffer); + Tcl_DecrRefCount(errorBuffer); } if (actualSource != NULL) { Tcl_DecrRefCount(actualSource); @@ -744,14 +801,13 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) * * FileForceOption -- * - * Helps parse command line options for file commands that take - * the "-force" and "--" options. + * Helps parse command line options for file commands that take the + * "-force" and "--" options. * * Results: - * The return value is how many arguments from argv were consumed - * by this function, or -1 if there was an error parsing the - * options. If an error occurred, an error message is left in the - * interp's result. + * The return value is how many arguments from argv were consumed by this + * function, or -1 if there was an error parsing the options. If an error + * occurred, an error message is left in the interp's result. * * Side effects: * None. @@ -760,29 +816,29 @@ CopyRenameOneFile(interp, source, target, copyFlag, force) */ static int -FileForceOption(interp, objc, objv, forcePtr) - Tcl_Interp *interp; /* Interp, for error return. */ - int objc; /* Number of arguments. */ - Tcl_Obj *CONST objv[]; /* Argument strings. First command line +FileForceOption( + Tcl_Interp *interp, /* Interp, for error return. */ + int objc, /* Number of arguments. */ + Tcl_Obj *CONST objv[], /* Argument strings. First command line * option, if it exists, begins at 0. */ - int *forcePtr; /* If the "-force" was specified, *forcePtr - * is filled with 1, otherwise with 0. */ + int *forcePtr) /* If the "-force" was specified, *forcePtr is + * filled with 1, otherwise with 0. */ { int force, i; - + force = 0; for (i = 0; i < objc; i++) { - if (Tcl_GetString(objv[i])[0] != '-') { + if (TclGetString(objv[i])[0] != '-') { break; } - if (strcmp(Tcl_GetString(objv[i]), "-force") == 0) { + if (strcmp(TclGetString(objv[i]), "-force") == 0) { force = 1; - } else if (strcmp(Tcl_GetString(objv[i]), "--") == 0) { + } else if (strcmp(TclGetString(objv[i]), "--") == 0) { i++; break; } else { - Tcl_AppendResult(interp, "bad option \"", Tcl_GetString(objv[i]), - "\": should be -force or --", (char *)NULL); + Tcl_AppendResult(interp, "bad option \"", TclGetString(objv[i]), + "\": should be -force or --", NULL); return -1; } } @@ -796,13 +852,12 @@ FileForceOption(interp, objc, objv, forcePtr) * * Given a path in either tcl format (with / separators), or in the * platform-specific format for the current platform, return all the - * characters in the path after the last directory separator. But, - * if path is the root directory, returns no characters. + * characters in the path after the last directory separator. But, if + * path is the root directory, returns no characters. * * Results: - * Returns the string object that represents the basename. If there - * is an error, an error message is left in interp, and NULL is - * returned. + * Returns the string object that represents the basename. If there is an + * error, an error message is left in interp, and NULL is returned. * * Side effects: * None. @@ -811,23 +866,25 @@ FileForceOption(interp, objc, objv, forcePtr) */ static Tcl_Obj * -FileBasename(interp, pathPtr) - Tcl_Interp *interp; /* Interp, for error return. */ - Tcl_Obj *pathPtr; /* Path whose basename to extract. */ +FileBasename( + Tcl_Interp *interp, /* Interp, for error return. */ + Tcl_Obj *pathPtr) /* Path whose basename to extract. */ { int objc; Tcl_Obj *splitPtr; Tcl_Obj *resultPtr = NULL; - + splitPtr = Tcl_FSSplitPath(pathPtr, &objc); + Tcl_IncrRefCount(splitPtr); if (objc != 0) { - if ((objc == 1) && (*Tcl_GetString(pathPtr) == '~')) { + if ((objc == 1) && (*TclGetString(pathPtr) == '~')) { Tcl_DecrRefCount(splitPtr); if (Tcl_FSConvertToPathType(interp, pathPtr) != TCL_OK) { return NULL; } splitPtr = Tcl_FSSplitPath(pathPtr, &objc); + Tcl_IncrRefCount(splitPtr); } /* @@ -838,7 +895,7 @@ FileBasename(interp, pathPtr) if (objc > 0) { Tcl_ListObjIndex(NULL, splitPtr, objc-1, &resultPtr); if ((objc == 1) && - (Tcl_FSGetPathType(resultPtr) != TCL_PATH_RELATIVE)) { + (Tcl_FSGetPathType(resultPtr) != TCL_PATH_RELATIVE)) { resultPtr = NULL; } } @@ -856,48 +913,46 @@ FileBasename(interp, pathPtr) * * TclFileAttrsCmd -- * - * Sets or gets the platform-specific attributes of a file. The - * objc-objv points to the file name with the rest of the command - * line following. This routine uses platform-specific tables of - * option strings and callbacks. The callback to get the - * attributes take three parameters: - * Tcl_Interp *interp; The interp to report errors with. - * Since this is an object-based API, - * the object form of the result should - * be used. + * Sets or gets the platform-specific attributes of a file. The objc-objv + * points to the file name with the rest of the command line following. + * This routine uses platform-specific tables of option strings and + * callbacks. The callback to get the attributes take three parameters: + * Tcl_Interp *interp; The interp to report errors with. Since + * this is an object-based API, the object + * form of the result should be used. * CONST char *fileName; This is extracted using * Tcl_TranslateFileName. - * TclObj **attrObjPtrPtr; A new object to hold the attribute - * is allocated and put here. + * TclObj **attrObjPtrPtr; A new object to hold the attribute is + * allocated and put here. * The first two parameters of the callback used to write out the * attributes are the same. The third parameter is: - * CONST *attrObjPtr; A pointer to the object that has - * the new attribute. - * They both return standard TCL errors; if the routine to get - * an attribute fails, no object is allocated and *attrObjPtrPtr - * is unchanged. + * CONST *attrObjPtr; A pointer to the object that has the new + * attribute. + * They both return standard TCL errors; if the routine to get an + * attribute fails, no object is allocated and *attrObjPtrPtr is + * unchanged. * * Results: - * Standard TCL error. + * Standard TCL error. * * Side effects: - * May set file attributes for the file name. - * + * May set file attributes for the file name. + * *---------------------------------------------------------------------- */ int -TclFileAttrsCmd(interp, objc, objv) - Tcl_Interp *interp; /* The interpreter for error reporting. */ - int objc; /* Number of command line arguments. */ - Tcl_Obj *CONST objv[]; /* The command line objects. */ +TclFileAttrsCmd( + Tcl_Interp *interp, /* The interpreter for error reporting. */ + int objc, /* Number of command line arguments. */ + Tcl_Obj *CONST objv[]) /* The command line objects. */ { int result; CONST char ** attributeStrings; Tcl_Obj* objStrings = NULL; - int numObjStrings = -1; + int numObjStrings = -1, didAlloc = 0; Tcl_Obj *filePtr; - + if (objc < 3) { Tcl_WrongNumArgs(interp, 2, objv, "name ?option? ?value? ?option value ...?"); @@ -908,64 +963,95 @@ TclFileAttrsCmd(interp, objc, objv) if (Tcl_FSConvertToPathType(interp, filePtr) != TCL_OK) { return TCL_ERROR; } - + objc -= 3; objv += 3; result = TCL_ERROR; Tcl_SetErrno(0); + attributeStrings = Tcl_FSFileAttrStrings(filePtr, &objStrings); if (attributeStrings == NULL) { int index; Tcl_Obj *objPtr; + if (objStrings == NULL) { if (Tcl_GetErrno() != 0) { - /* - * There was an error, probably that the filePtr is - * not accepted by any filesystem + /* + * There was an error, probably that the filePtr is not + * accepted by any filesystem */ - Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), - "could not read \"", Tcl_GetString(filePtr), - "\": ", Tcl_PosixError(interp), - (char *) NULL); - return TCL_ERROR; + Tcl_AppendResult(interp, "could not read \"", + TclGetString(filePtr), "\": ", Tcl_PosixError(interp), + NULL); } - goto end; + return TCL_ERROR; } - /* We own the object now */ + + /* + * We own the object now. + */ + Tcl_IncrRefCount(objStrings); - /* Use objStrings as a list object */ + + /* + * Use objStrings as a list object. + */ + if (Tcl_ListObjLength(interp, objStrings, &numObjStrings) != TCL_OK) { goto end; } - attributeStrings = (CONST char **) - ckalloc ((1+numObjStrings) * sizeof(char*)); + attributeStrings = (CONST char **) TclStackAlloc(interp, + (1+numObjStrings) * sizeof(char*)); + didAlloc = 1; for (index = 0; index < numObjStrings; index++) { Tcl_ListObjIndex(interp, objStrings, index, &objPtr); - attributeStrings[index] = Tcl_GetString(objPtr); + attributeStrings[index] = TclGetString(objPtr); } attributeStrings[index] = NULL; + } else if (objStrings != NULL) { + Tcl_Panic("must not update objPtrRef's variable and return non-NULL"); } + if (objc == 0) { /* * Get all attributes. */ - int index; + int index, res = TCL_OK, nbAtts = 0; Tcl_Obj *listPtr; - + listPtr = Tcl_NewListObj(0, NULL); for (index = 0; attributeStrings[index] != NULL; index++) { - Tcl_Obj *objPtr = Tcl_NewStringObj(attributeStrings[index], -1); - Tcl_ListObjAppendElement(interp, listPtr, objPtr); - /* We now forget about objPtr, it is in the list */ - objPtr = NULL; - if (Tcl_FSFileAttrsGet(interp, index, filePtr, - &objPtr) != TCL_OK) { - Tcl_DecrRefCount(listPtr); - goto end; + Tcl_Obj *objPtrAttr; + + if (res != TCL_OK) { + /* + * Clear the error from the last iteration. + */ + + Tcl_ResetResult(interp); + } + + res = Tcl_FSFileAttrsGet(interp, index, filePtr, &objPtrAttr); + if (res == TCL_OK) { + Tcl_Obj *objPtr = + Tcl_NewStringObj(attributeStrings[index], -1); + + Tcl_ListObjAppendElement(interp, listPtr, objPtr); + Tcl_ListObjAppendElement(interp, listPtr, objPtrAttr); + nbAtts++; } - Tcl_ListObjAppendElement(interp, listPtr, objPtr); } + + if (index > 0 && nbAtts == 0) { + /* + * Error: no valid attributes found. + */ + + Tcl_DecrRefCount(listPtr); + goto end; + } + Tcl_SetObjResult(interp, listPtr); } else if (objc == 1) { /* @@ -976,9 +1062,9 @@ TclFileAttrsCmd(interp, objc, objv) Tcl_Obj *objPtr = NULL; if (numObjStrings == 0) { - Tcl_AppendResult(interp, "bad option \"", - Tcl_GetString(objv[0]), "\", there are no file attributes" - " in this filesystem.", (char *) NULL); + Tcl_AppendResult(interp, "bad option \"", TclGetString(objv[0]), + "\", there are no file attributes in this filesystem.", + NULL); goto end; } @@ -986,9 +1072,8 @@ TclFileAttrsCmd(interp, objc, objv) "option", 0, &index) != TCL_OK) { goto end; } - if (numObjStrings != -1 && objv[0]->typePtr != NULL - && objv[0]->typePtr->freeIntRepProc != NULL) { - objv[0]->typePtr->freeIntRepProc(objv[0]); + if (didAlloc) { + TclFreeIntRep(objv[0]); objv[0]->typePtr = NULL; } if (Tcl_FSFileAttrsGet(interp, index, filePtr, @@ -1002,11 +1087,11 @@ TclFileAttrsCmd(interp, objc, objv) */ int i, index; - + if (numObjStrings == 0) { - Tcl_AppendResult(interp, "bad option \"", - Tcl_GetString(objv[0]), "\", there are no file attributes" - " in this filesystem.", (char *) NULL); + Tcl_AppendResult(interp, "bad option \"", TclGetString(objv[0]), + "\", there are no file attributes in this filesystem.", + NULL); goto end; } @@ -1015,15 +1100,13 @@ TclFileAttrsCmd(interp, objc, objv) "option", 0, &index) != TCL_OK) { goto end; } - if (numObjStrings != -1 && objv[i]->typePtr != NULL - && objv[i]->typePtr->freeIntRepProc != NULL) { - objv[i]->typePtr->freeIntRepProc(objv[i]); + if (didAlloc) { + TclFreeIntRep(objv[i]); objv[i]->typePtr = NULL; } if (i + 1 == objc) { Tcl_AppendResult(interp, "value for \"", - Tcl_GetString(objv[i]), "\" missing", - (char *) NULL); + TclGetString(objv[i]), "\" missing", NULL); goto end; } if (Tcl_FSFileAttrsSet(interp, index, filePtr, @@ -1034,17 +1117,29 @@ TclFileAttrsCmd(interp, objc, objv) } result = TCL_OK; - end: - if (numObjStrings != -1) { - /* Free up the array we allocated */ - ckfree((char*)attributeStrings); - /* - * We don't need this object that was passed to us - * any more. + end: + if (didAlloc) { + /* + * Free up the array we allocated. */ - if (objStrings != NULL) { - Tcl_DecrRefCount(objStrings); - } + + TclStackFree(interp, (void *)attributeStrings); + } + + if (objStrings != NULL) { + /* + * We don't need this object that was passed to us any more. + */ + + Tcl_DecrRefCount(objStrings); } return result; } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |