diff options
Diffstat (limited to 'unix/tclUnixFile.c')
| -rw-r--r-- | unix/tclUnixFile.c | 860 |
1 files changed, 606 insertions, 254 deletions
diff --git a/unix/tclUnixFile.c b/unix/tclUnixFile.c index c0d81b1..625b864 100644 --- a/unix/tclUnixFile.c +++ b/unix/tclUnixFile.c @@ -1,70 +1,59 @@ -/* +/* * tclUnixFile.c -- * - * This file contains wrappers around UNIX file handling functions. - * These wrappers mask differences between Windows and UNIX. + * This file contains wrappers around UNIX file handling functions. + * These wrappers mask differences between Windows and UNIX. * * Copyright (c) 1995-1998 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" - -static int NativeMatchType(CONST char* nativeName, Tcl_GlobTypeData *types); +#include "tclFileSystem.h" +static int NativeMatchType(Tcl_Interp *interp, CONST char* nativeEntry, + CONST char* nativeName, Tcl_GlobTypeData *types); /* *--------------------------------------------------------------------------- * * TclpFindExecutable -- * - * This procedure computes the absolute path name of the current + * This function computes the absolute path name of the current * application, given its argv[0] value. * * Results: - * A dirty UTF string that is the path to the executable. At this - * point we may not know the system encoding. Convert the native - * string value to UTF using the default encoding. The assumption - * is that we will still be able to parse the path given the path - * name contains ASCII string and '/' chars do not conflict with - * other UTF chars. + * None. * * Side effects: - * The variable tclNativeExecutableName gets filled in with the file - * name for the application, if we figured it out. If we couldn't - * figure it out, tclNativeExecutableName is set to NULL. + * The computed path name is stored as a ProcessGlobalValue. * *--------------------------------------------------------------------------- */ -char * -TclpFindExecutable(argv0) - CONST char *argv0; /* The value of the application's argv[0] +void +TclpFindExecutable( + CONST char *argv0) /* The value of the application's argv[0] * (native). */ { CONST char *name, *p; Tcl_StatBuf statBuf; - int length; - Tcl_DString buffer, nameString; + Tcl_DString buffer, nameString, cwd, utfName; + Tcl_Encoding encoding; if (argv0 == NULL) { - return NULL; + return; } - if (tclNativeExecutableName != NULL) { - return tclNativeExecutableName; - } - Tcl_DStringInit(&buffer); name = argv0; for (p = name; *p != '\0'; p++) { if (*p == '/') { /* - * The name contains a slash, so use the name directly - * without doing a path search. + * The name contains a slash, so use the name directly without + * doing a path search. */ goto gotName; @@ -74,8 +63,8 @@ TclpFindExecutable(argv0) p = getenv("PATH"); /* INTL: Native. */ if (p == NULL) { /* - * There's no PATH environment variable; use the default that - * is used by sh. + * There's no PATH environment variable; use the default that is used + * by sh. */ p = ":/bin:/usr/bin"; @@ -88,13 +77,12 @@ TclpFindExecutable(argv0) } /* - * Search through all the directories named in the PATH variable - * to see if argv[0] is in one of them. If so, use that file - * name. + * Search through all the directories named in the PATH variable to see if + * argv[0] is in one of them. If so, use that file name. */ while (1) { - while (isspace(UCHAR(*p))) { /* INTL: BUG */ + while (isspace(UCHAR(*p))) { /* INTL: BUG */ p++; } name = p; @@ -129,52 +117,63 @@ TclpFindExecutable(argv0) p++; } } + TclSetObjNameOfExecutable(Tcl_NewObj(), NULL); goto done; /* - * If the name starts with "/" then just copy it to tclExecutableName. + * If the name starts with "/" then just store it */ -gotName: + gotName: #ifdef DJGPP - if (name[1] == ':') { + if (name[1] == ':') #else - if (name[0] == '/') { + if (name[0] == '/') #endif - Tcl_ExternalToUtfDString(NULL, name, -1, &nameString); - tclNativeExecutableName = (char *) - ckalloc((unsigned) (Tcl_DStringLength(&nameString) + 1)); - strcpy(tclNativeExecutableName, Tcl_DStringValue(&nameString)); - Tcl_DStringFree(&nameString); + { + encoding = Tcl_GetEncoding(NULL, NULL); + Tcl_ExternalToUtfDString(encoding, name, -1, &utfName); + TclSetObjNameOfExecutable( + Tcl_NewStringObj(Tcl_DStringValue(&utfName), -1), encoding); + Tcl_DStringFree(&utfName); goto done; } /* - * The name is relative to the current working directory. First - * strip off a leading "./", if any, then add the full path name of - * the current working directory. + * The name is relative to the current working directory. First strip off + * a leading "./", if any, then add the full path name of the current + * working directory. */ if ((name[0] == '.') && (name[1] == '/')) { name += 2; } - Tcl_ExternalToUtfDString(NULL, name, -1, &nameString); + Tcl_DStringInit(&nameString); + Tcl_DStringAppend(&nameString, name, -1); + + TclpGetCwd(NULL, &cwd); Tcl_DStringFree(&buffer); - TclpGetCwd(NULL, &buffer); - - length = Tcl_DStringLength(&buffer) + Tcl_DStringLength(&nameString) + 2; - tclNativeExecutableName = (char *) ckalloc((unsigned) length); - strcpy(tclNativeExecutableName, Tcl_DStringValue(&buffer)); - tclNativeExecutableName[Tcl_DStringLength(&buffer)] = '/'; - strcpy(tclNativeExecutableName + Tcl_DStringLength(&buffer) + 1, - Tcl_DStringValue(&nameString)); + Tcl_UtfToExternalDString(NULL, Tcl_DStringValue(&cwd), + Tcl_DStringLength(&cwd), &buffer); + if (Tcl_DStringValue(&cwd)[Tcl_DStringLength(&cwd) -1] != '/') { + Tcl_DStringAppend(&buffer, "/", 1); + } + Tcl_DStringFree(&cwd); + Tcl_DStringAppend(&buffer, Tcl_DStringValue(&nameString), + Tcl_DStringLength(&nameString)); Tcl_DStringFree(&nameString); - -done: + + encoding = Tcl_GetEncoding(NULL, NULL); + Tcl_ExternalToUtfDString(encoding, Tcl_DStringValue(&buffer), -1, + &utfName); + TclSetObjNameOfExecutable( + Tcl_NewStringObj(Tcl_DStringValue(&utfName), -1), encoding); + Tcl_DStringFree(&utfName); + + done: Tcl_DStringFree(&buffer); - return tclNativeExecutableName; } /* @@ -182,80 +181,101 @@ done: * * TclpMatchInDirectory -- * - * This routine is used by the globbing code to search a - * directory for all files which match a given pattern. + * This routine is used by the globbing code to search a directory for + * all files which match a given pattern. * - * Results: - * The return value is a standard Tcl result indicating whether an - * error occurred in globbing. Errors are left in interp, good - * results are lappended to resultPtr (which must be a valid object) + * Results: + * The return value is a standard Tcl result indicating whether an error + * occurred in globbing. Errors are left in interp, good results are + * [lappend]ed to resultPtr (which must be a valid object). * * Side effects: * None. * - *---------------------------------------------------------------------- */ + *---------------------------------------------------------------------- + */ int -TclpMatchInDirectory(interp, resultPtr, pathPtr, pattern, types) - Tcl_Interp *interp; /* Interpreter to receive errors. */ - Tcl_Obj *resultPtr; /* List object to lappend results. */ - Tcl_Obj *pathPtr; /* Contains path to directory to search. */ - CONST char *pattern; /* Pattern to match against. */ - Tcl_GlobTypeData *types; /* Object containing list of acceptable types. +TclpMatchInDirectory( + Tcl_Interp *interp, /* Interpreter to receive errors. */ + Tcl_Obj *resultPtr, /* List object to lappend results. */ + Tcl_Obj *pathPtr, /* Contains path to directory to search. */ + CONST char *pattern, /* Pattern to match against. */ + Tcl_GlobTypeData *types) /* Object containing list of acceptable types. * May be NULL. In particular the directory * flag is very important. */ { CONST char *native; Tcl_Obj *fileNamePtr; + int matchResult = 0; + + if (types != NULL && types->type == TCL_GLOB_TYPE_MOUNT) { + /* + * The native filesystem never adds mounts. + */ + + return TCL_OK; + } fileNamePtr = Tcl_FSGetTranslatedPath(interp, pathPtr); if (fileNamePtr == NULL) { return TCL_ERROR; } - + if (pattern == NULL || (*pattern == '\0')) { - /* Match a file directly */ + /* + * Match a file directly. + */ + Tcl_Obj *tailPtr; + CONST char *nativeTail; + native = (CONST char*) Tcl_FSGetNativePath(pathPtr); - if (NativeMatchType(native, types)) { + tailPtr = TclPathPart(interp, pathPtr, TCL_PATH_TAIL); + nativeTail = (CONST char*) Tcl_FSGetNativePath(tailPtr); + matchResult = NativeMatchType(interp, native, nativeTail, types); + if (matchResult == 1) { Tcl_ListObjAppendElement(interp, resultPtr, pathPtr); } + Tcl_DecrRefCount(tailPtr); Tcl_DecrRefCount(fileNamePtr); - return TCL_OK; } else { DIR *d; Tcl_DirEntry *entryPtr; CONST char *dirName; int dirLength; - int matchHidden; + int matchHidden, matchHiddenPat; int nativeDirLen; Tcl_StatBuf statBuf; - Tcl_DString ds; /* native encoding of dir */ - Tcl_DString dsOrig; /* utf-8 encoding of dir */ + Tcl_DString ds; /* native encoding of dir */ + Tcl_DString dsOrig; /* utf-8 encoding of dir */ Tcl_DStringInit(&dsOrig); dirName = Tcl_GetStringFromObj(fileNamePtr, &dirLength); Tcl_DStringAppend(&dsOrig, dirName, dirLength); - + /* * Make sure that the directory part of the name really is a - * directory. If the directory name is "", use the name "." - * instead, because some UNIX systems don't treat "" like "." - * automatically. Keep the "" for use in generating file names, - * otherwise "glob foo.c" would return "./foo.c". + * directory. If the directory name is "", use the name "." instead, + * because some UNIX systems don't treat "" like "." automatically. + * Keep the "" for use in generating file names, otherwise "glob + * foo.c" would return "./foo.c". */ if (dirLength == 0) { dirName = "."; } else { dirName = Tcl_DStringValue(&dsOrig); - /* Make sure we have a trailing directory delimiter */ + + /* + * Make sure we have a trailing directory delimiter. + */ + if (dirName[dirLength-1] != '/') { dirName = Tcl_DStringAppend(&dsOrig, "/", 1); dirLength++; } } - Tcl_DecrRefCount(fileNamePtr); - + /* * Now open the directory for reading and iterate over the contents. */ @@ -266,17 +286,21 @@ TclpMatchInDirectory(interp, resultPtr, pathPtr, pattern, types) || !S_ISDIR(statBuf.st_mode)) { Tcl_DStringFree(&dsOrig); Tcl_DStringFree(&ds); + Tcl_DecrRefCount(fileNamePtr); return TCL_OK; } d = opendir(native); /* INTL: Native. */ if (d == NULL) { Tcl_DStringFree(&ds); - Tcl_ResetResult(interp); - Tcl_AppendResult(interp, "couldn't read directory \"", - Tcl_DStringValue(&dsOrig), "\": ", - Tcl_PosixError(interp), (char *) NULL); + if (interp != NULL) { + Tcl_ResetResult(interp); + Tcl_AppendResult(interp, "couldn't read directory \"", + Tcl_DStringValue(&dsOrig), "\": ", + Tcl_PosixError(interp), (char *) NULL); + } Tcl_DStringFree(&dsOrig); + Tcl_DecrRefCount(fileNamePtr); return TCL_ERROR; } @@ -285,92 +309,135 @@ TclpMatchInDirectory(interp, resultPtr, pathPtr, pattern, types) /* * Check to see if -type or the pattern requests hidden files. */ - matchHidden = ((types && (types->perm & TCL_GLOB_PERM_HIDDEN)) || - ((pattern[0] == '.') - || ((pattern[0] == '\\') && (pattern[1] == '.')))); - while ((entryPtr = TclOSreaddir(d)) != NULL) { /* INTL: Native. */ + matchHiddenPat = (pattern[0] == '.') + || ((pattern[0] == '\\') && (pattern[1] == '.')); + matchHidden = matchHiddenPat + || (types && (types->perm & TCL_GLOB_PERM_HIDDEN)); + while ((entryPtr = TclOSreaddir(d)) != NULL) { /* INTL: Native. */ Tcl_DString utfDs; CONST char *utfname; - /* - * Skip this file if it doesn't agree with the hidden - * parameters requested by the user (via -type or pattern). + /* + * Skip this file if it doesn't agree with the hidden parameters + * requested by the user (via -type or pattern). */ + if (*entryPtr->d_name == '.') { if (!matchHidden) continue; } else { +#ifdef MAC_OSX_TCL + if (matchHiddenPat) continue; + /* Also need to check HFS hidden flag in TclMacOSXMatchType. */ +#else if (matchHidden) continue; +#endif } /* * Now check to see if the file matches, according to both type - * and pattern. If so, add the file to the result. + * and pattern. If so, add the file to the result. */ - utfname = Tcl_ExternalToUtfDString(NULL, entryPtr->d_name, - -1, &utfDs); + utfname = Tcl_ExternalToUtfDString(NULL, entryPtr->d_name, -1, + &utfDs); if (Tcl_StringCaseMatch(utfname, pattern, 0)) { int typeOk = 1; if (types != NULL) { Tcl_DStringSetLength(&ds, nativeDirLen); native = Tcl_DStringAppend(&ds, entryPtr->d_name, -1); - typeOk = NativeMatchType(native, types); + matchResult = NativeMatchType(interp, native, + entryPtr->d_name, types); + typeOk = (matchResult == 1); } if (typeOk) { - Tcl_ListObjAppendElement(interp, resultPtr, + Tcl_ListObjAppendElement(interp, resultPtr, TclNewFSPathObj(pathPtr, utfname, - Tcl_DStringLength(&utfDs))); + Tcl_DStringLength(&utfDs))); } } Tcl_DStringFree(&utfDs); + if (matchResult < 0) { + break; + } } closedir(d); Tcl_DStringFree(&ds); Tcl_DStringFree(&dsOrig); + Tcl_DecrRefCount(fileNamePtr); + } + if (matchResult < 0) { + return TCL_ERROR; + } else { return TCL_OK; } } -static int + +/* + *---------------------------------------------------------------------- + * + * NativeMatchType -- + * + * This routine is used by the globbing code to check if a file + * matches a given type description. + * + * Results: + * The return value is 1, 0 or -1 indicating whether the file + * matches the given criteria, does not match them, or an error + * occurred (in wich case an error is left in interp). + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ + +static int NativeMatchType( - CONST char* nativeEntry, /* Native path to check */ - Tcl_GlobTypeData *types) /* Type description to match against */ + Tcl_Interp *interp, /* Interpreter to receive errors. */ + CONST char *nativeEntry, /* Native path to check. */ + CONST char *nativeName, /* Native filename to check. */ + Tcl_GlobTypeData *types) /* Type description to match against. */ { Tcl_StatBuf buf; if (types == NULL) { - /* - * Simply check for the file's existence, but do it - * with lstat, in case it is a link to a file which - * doesn't exist (since that case would not show up - * if we used 'access' or 'stat') + /* + * Simply check for the file's existence, but do it with lstat, in + * case it is a link to a file which doesn't exist (since that case + * would not show up if we used 'access' or 'stat') */ + if (TclOSlstat(nativeEntry, &buf) != 0) { return 0; } } else { if (types->perm != 0) { if (TclOSstat(nativeEntry, &buf) != 0) { - /* - * Either the file has disappeared between the - * 'readdir' call and the 'stat' call, or - * the file is a link to a file which doesn't - * exist (which we could ascertain with - * lstat), or there is some other strange - * problem. In all these cases, we define this - * to mean the file does not match any defined - * permission, and therefore it is not - * added to the list of files to return. + /* + * Either the file has disappeared between the 'readdir' call + * and the 'stat' call, or the file is a link to a file which + * doesn't exist (which we could ascertain with lstat), or + * there is some other strange problem. In all these cases, we + * define this to mean the file does not match any defined + * permission, and therefore it is not added to the list of + * files to return. */ + return 0; } - - /* - * readonly means that there are NO write permissions - * (even for user), but execute is OK for anybody + + /* + * readonly means that there are NO write permissions (even for + * user), but execute is OK for anybody OR that the user immutable + * flag is set (where supported). */ + if (((types->perm & TCL_GLOB_PERM_RONLY) && +#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE) + !(buf.st_flags & UF_IMMUTABLE) && +#endif (buf.st_mode & (S_IWOTH|S_IWGRP|S_IWUSR))) || ((types->perm & TCL_GLOB_PERM_R) && (access(nativeEntry, R_OK) != 0)) || @@ -378,20 +445,27 @@ NativeMatchType( (access(nativeEntry, W_OK) != 0)) || ((types->perm & TCL_GLOB_PERM_X) && (access(nativeEntry, X_OK) != 0)) +#ifndef MAC_OSX_TCL + || ((types->perm & TCL_GLOB_PERM_HIDDEN) && + (*nativeName != '.')) +#endif ) { return 0; } } if (types->type != 0) { if (types->perm == 0) { - /* We haven't yet done a stat on the file */ + /* + * We haven't yet done a stat on the file. + */ + if (TclOSstat(nativeEntry, &buf) != 0) { - /* - * Posix error occurred. The only ok - * case is if this is a link to a nonexistent - * file, and the user did 'glob -l'. So - * we check that here: + /* + * Posix error occurred. The only ok case is if this is a + * link to a nonexistent file, and the user did 'glob -l'. + * So we check that here: */ + if (types->type & TCL_GLOB_TYPE_LINK) { if (TclOSlstat(nativeEntry, &buf) == 0) { if (S_ISLNK(buf.st_mode)) { @@ -402,32 +476,29 @@ NativeMatchType( return 0; } } + /* * In order bcdpfls as in 'find -t' */ - if ( - ((types->type & TCL_GLOB_TYPE_BLOCK) && - S_ISBLK(buf.st_mode)) || - ((types->type & TCL_GLOB_TYPE_CHAR) && - S_ISCHR(buf.st_mode)) || - ((types->type & TCL_GLOB_TYPE_DIR) && - S_ISDIR(buf.st_mode)) || - ((types->type & TCL_GLOB_TYPE_PIPE) && - S_ISFIFO(buf.st_mode)) || - ((types->type & TCL_GLOB_TYPE_FILE) && - S_ISREG(buf.st_mode)) + + if (((types->type & TCL_GLOB_TYPE_BLOCK)&& S_ISBLK(buf.st_mode)) || + ((types->type & TCL_GLOB_TYPE_CHAR) && S_ISCHR(buf.st_mode)) || + ((types->type & TCL_GLOB_TYPE_DIR) && S_ISDIR(buf.st_mode)) || + ((types->type & TCL_GLOB_TYPE_PIPE) && S_ISFIFO(buf.st_mode))|| + ((types->type & TCL_GLOB_TYPE_FILE) && S_ISREG(buf.st_mode)) #ifdef S_ISSOCK - || ((types->type & TCL_GLOB_TYPE_SOCK) && - S_ISSOCK(buf.st_mode)) + ||((types->type & TCL_GLOB_TYPE_SOCK) && S_ISSOCK(buf.st_mode)) #endif /* S_ISSOCK */ ) { - /* Do nothing -- this file is ok */ + /* + * Do nothing - this file is ok. + */ } else { #ifdef S_ISLNK if (types->type & TCL_GLOB_TYPE_LINK) { if (TclOSlstat(nativeEntry, &buf) == 0) { if (S_ISLNK(buf.st_mode)) { - return 1; + goto filetypeOK; } } } @@ -435,6 +506,29 @@ NativeMatchType( return 0; } } + filetypeOK: ; +#ifdef MAC_OSX_TCL + if (types->macType != NULL || types->macCreator != NULL || + (types->perm & TCL_GLOB_PERM_HIDDEN)) { + int matchResult; + + if (types->perm == 0 && types->type == 0) { + /* + * We haven't yet done a stat on the file. + */ + + if (TclOSstat(nativeEntry, &buf) != 0) { + return 0; + } + } + + matchResult = TclMacOSXMatchType(interp, nativeEntry, nativeName, + &buf, types); + if (matchResult != 1) { + return matchResult; + } + } +#endif } return 1; } @@ -444,15 +538,15 @@ NativeMatchType( * * TclpGetUserHome -- * - * This function takes the specified user name and finds their - * home directory. + * This function takes the specified user name and finds their home + * directory. * * Results: * The result is a pointer to a string specifying the user's home * directory, or NULL if the user's home directory could not be - * determined. Storage for the result string is allocated in - * bufferPtr; the caller must call Tcl_DStringFree() when the result - * is no longer needed. + * determined. Storage for the result string is allocated in bufferPtr; + * the caller must call Tcl_DStringFree() when the result is no longer + * needed. * * Side effects: * None. @@ -461,25 +555,23 @@ NativeMatchType( */ char * -TclpGetUserHome(name, bufferPtr) - CONST char *name; /* User name for desired home directory. */ - Tcl_DString *bufferPtr; /* Uninitialized or free DString filled - * with name of user's home directory. */ +TclpGetUserHome( + CONST char *name, /* User name for desired home directory. */ + Tcl_DString *bufferPtr) /* Uninitialized or free DString filled with + * name of user's home directory. */ { struct passwd *pwPtr; Tcl_DString ds; CONST char *native; native = Tcl_UtfToExternalDString(NULL, name, -1, &ds); - pwPtr = getpwnam(native); /* INTL: Native. */ + pwPtr = TclpGetPwNam(native); /* INTL: Native. */ Tcl_DStringFree(&ds); - + if (pwPtr == NULL) { - endpwent(); return NULL; } Tcl_ExternalToUtfDString(NULL, pwPtr->pw_dir, -1, bufferPtr); - endpwent(); return Tcl_DStringValue(bufferPtr); } @@ -499,10 +591,10 @@ TclpGetUserHome(name, bufferPtr) *--------------------------------------------------------------------------- */ -int -TclpObjAccess(pathPtr, mode) - Tcl_Obj *pathPtr; /* Path of file to access */ - int mode; /* Permission setting. */ +int +TclpObjAccess( + Tcl_Obj *pathPtr, /* Path of file to access */ + int mode) /* Permission setting. */ { CONST char *path = Tcl_FSGetNativePath(pathPtr); if (path == NULL) { @@ -523,14 +615,14 @@ TclpObjAccess(pathPtr, mode) * See chdir() documentation. * * Side effects: - * See chdir() documentation. + * See chdir() documentation. * *--------------------------------------------------------------------------- */ -int -TclpObjChdir(pathPtr) - Tcl_Obj *pathPtr; /* Path to new working directory */ +int +TclpObjChdir( + Tcl_Obj *pathPtr) /* Path to new working directory */ { CONST char *path = Tcl_FSGetNativePath(pathPtr); if (path == NULL) { @@ -556,10 +648,10 @@ TclpObjChdir(pathPtr) *---------------------------------------------------------------------- */ -int -TclpObjLstat(pathPtr, bufPtr) - Tcl_Obj *pathPtr; /* Path of file to stat */ - Tcl_StatBuf *bufPtr; /* Filled with results of stat call. */ +int +TclpObjLstat( + Tcl_Obj *pathPtr, /* Path of file to stat */ + Tcl_StatBuf *bufPtr) /* Filled with results of stat call. */ { return TclOSlstat(Tcl_FSGetNativePath(pathPtr), bufPtr); } @@ -567,17 +659,17 @@ TclpObjLstat(pathPtr, bufPtr) /* *--------------------------------------------------------------------------- * - * TclpObjGetCwd -- + * TclpGetNativeCwd -- * * This function replaces the library version of getcwd(). * * Results: - * The result is a pointer to a string specifying the current - * directory, or NULL if the current directory could not be - * determined. If NULL is returned, an error message is left in the - * interp's result. Storage for the result string is allocated in - * bufferPtr; the caller must call Tcl_DStringFree() when the result - * is no longer needed. + * The input and output are filesystem paths in native form. The result + * is either the given clientData, if the working directory hasn't + * changed, or a new clientData (owned by our caller), giving the new + * native path, or NULL if the current directory could not be determined. + * If NULL is returned, the caller can examine the standard posix error + * codes to determine the cause of the problem. * * Side effects: * None. @@ -585,39 +677,73 @@ TclpObjLstat(pathPtr, bufPtr) *---------------------------------------------------------------------- */ -Tcl_Obj* -TclpObjGetCwd(interp) - Tcl_Interp *interp; +ClientData +TclpGetNativeCwd( + ClientData clientData) { - Tcl_DString ds; - if (TclpGetCwd(interp, &ds) != NULL) { - Tcl_Obj *cwdPtr = Tcl_NewStringObj(Tcl_DStringValue(&ds), -1); - Tcl_IncrRefCount(cwdPtr); - Tcl_DStringFree(&ds); - return cwdPtr; - } else { + char buffer[MAXPATHLEN+1]; + +#ifdef USEGETWD + if (getwd(buffer) == NULL) /* INTL: Native. */ +#else + if (getcwd(buffer, MAXPATHLEN+1) == NULL) /* INTL: Native. */ +#endif + { return NULL; } + if ((clientData != NULL) && strcmp(buffer, (CONST char*)clientData) == 0) { + /* + * No change to pwd. + */ + + return clientData; + } else { + char *newCd = (char *) ckalloc((unsigned) (strlen(buffer) + 1)); + strcpy(newCd, buffer); + return (ClientData) newCd; + } } + +/* + *--------------------------------------------------------------------------- + * + * TclpGetCwd -- + * + * This function replaces the library version of getcwd(). (Obsolete + * function, only retained for old extensions which may call it + * directly). + * + * Results: + * The result is a pointer to a string specifying the current directory, + * or NULL if the current directory could not be determined. If NULL is + * returned, an error message is left in the interp's result. Storage for + * the result string is allocated in bufferPtr; the caller must call + * Tcl_DStringFree() when the result is no longer needed. + * + * Side effects: + * None. + * + *---------------------------------------------------------------------- + */ -/* Older string based version */ CONST char * -TclpGetCwd(interp, bufferPtr) - Tcl_Interp *interp; /* If non-NULL, used for error reporting. */ - Tcl_DString *bufferPtr; /* Uninitialized or free DString filled - * with name of current directory. */ +TclpGetCwd( + Tcl_Interp *interp, /* If non-NULL, used for error reporting. */ + Tcl_DString *bufferPtr) /* Uninitialized or free DString filled with + * name of current directory. */ { char buffer[MAXPATHLEN+1]; #ifdef USEGETWD - if (getwd(buffer) == NULL) { /* INTL: Native. */ + if (getwd(buffer) == NULL) /* INTL: Native. */ #else - if (getcwd(buffer, MAXPATHLEN + 1) == NULL) { /* INTL: Native. */ + if (getcwd(buffer, MAXPATHLEN+1) == NULL) /* INTL: Native. */ #endif + { if (interp != NULL) { Tcl_AppendResult(interp, "error getting working directory name: ", - Tcl_PosixError(interp), (char *) NULL); + Tcl_PosixError(interp), NULL); } return NULL; } @@ -632,11 +758,11 @@ TclpGetCwd(interp, bufferPtr) * This function replaces the library version of readlink(). * * Results: - * The result is a pointer to a string specifying the contents - * of the symbolic link given by 'path', or NULL if the symbolic - * link could not be read. Storage for the result string is - * allocated in bufferPtr; the caller must call Tcl_DStringFree() - * when the result is no longer needed. + * The result is a pointer to a string specifying the contents of the + * symbolic link given by 'path', or NULL if the symbolic link could not + * be read. Storage for the result string is allocated in bufferPtr; the + * caller must call Tcl_DStringFree() when the result is no longer + * needed. * * Side effects: * See readlink() documentation. @@ -645,10 +771,10 @@ TclpGetCwd(interp, bufferPtr) */ char * -TclpReadlink(path, linkPtr) - CONST char *path; /* Path of file to readlink (UTF-8). */ - Tcl_DString *linkPtr; /* Uninitialized or free DString filled - * with contents of link (UTF-8). */ +TclpReadlink( + CONST char *path, /* Path of file to readlink (UTF-8). */ + Tcl_DString *linkPtr) /* Uninitialized or free DString filled with + * contents of link (UTF-8). */ { #ifndef DJGPP char link[MAXPATHLEN]; @@ -659,7 +785,7 @@ TclpReadlink(path, linkPtr) native = Tcl_UtfToExternalDString(NULL, path, -1, &ds); length = readlink(native, link, sizeof(link)); /* INTL: Native. */ Tcl_DStringFree(&ds); - + if (length < 0) { return NULL; } @@ -687,10 +813,10 @@ TclpReadlink(path, linkPtr) *---------------------------------------------------------------------- */ -int -TclpObjStat(pathPtr, bufPtr) - Tcl_Obj *pathPtr; /* Path of file to stat */ - Tcl_StatBuf *bufPtr; /* Filled with results of stat call. */ +int +TclpObjStat( + Tcl_Obj *pathPtr, /* Path of file to stat */ + Tcl_StatBuf *bufPtr) /* Filled with results of stat call. */ { CONST char *path = Tcl_FSGetNativePath(pathPtr); if (path == NULL) { @@ -700,67 +826,142 @@ TclpObjStat(pathPtr, bufPtr) } } - #ifdef S_IFLNK -Tcl_Obj* -TclpObjLink(pathPtr, toPtr, linkAction) - Tcl_Obj *pathPtr; - Tcl_Obj *toPtr; - int linkAction; +Tcl_Obj* +TclpObjLink( + Tcl_Obj *pathPtr, + Tcl_Obj *toPtr, + int linkAction) { if (toPtr != NULL) { CONST char *src = Tcl_FSGetNativePath(pathPtr); - CONST char *target = Tcl_FSGetNativePath(toPtr); - - if (src == NULL || target == NULL) { + CONST char *target = NULL; + + if (src == NULL) { return NULL; } + + /* + * If we're making a symbolic link and the path is relative, then we + * must check whether it exists _relative_ to the directory in which + * the src is found (not relative to the current cwd which is just not + * relevant in this case). + * + * If we're making a hard link, then a relative path is just converted + * to absolute relative to the cwd. + */ + + if ((linkAction & TCL_CREATE_SYMBOLIC_LINK) + && (Tcl_FSGetPathType(toPtr) == TCL_PATH_RELATIVE)) { + Tcl_Obj *dirPtr, *absPtr; + + dirPtr = TclPathPart(NULL, pathPtr, TCL_PATH_DIRNAME); + if (dirPtr == NULL) { + return NULL; + } + absPtr = Tcl_FSJoinToPath(dirPtr, 1, &toPtr); + Tcl_IncrRefCount(absPtr); + if (Tcl_FSAccess(absPtr, F_OK) == -1) { + Tcl_DecrRefCount(absPtr); + Tcl_DecrRefCount(dirPtr); + + /* + * Target doesn't exist. + */ + + errno = ENOENT; + return NULL; + } + + /* + * Target exists; we'll construct the relative path we want below. + */ + + Tcl_DecrRefCount(absPtr); + Tcl_DecrRefCount(dirPtr); + } else { + target = Tcl_FSGetNativePath(toPtr); + if (target == NULL) { + return NULL; + } + if (access(target, F_OK) == -1) { + /* + * Target doesn't exist. + */ + + errno = ENOENT; + return NULL; + } + } + if (access(src, F_OK) != -1) { - /* src exists */ + /* + * Src exists. + */ + errno = EEXIST; return NULL; } - if (access(target, F_OK) == -1) { - /* target doesn't exist */ - errno = ENOENT; - return NULL; - } - /* - * Check symbolic link flag first, since we prefer to - * create these. + + /* + * Check symbolic link flag first, since we prefer to create these. */ + if (linkAction & TCL_CREATE_SYMBOLIC_LINK) { - if (symlink(target, src) != 0) return NULL; + int targetLen; + Tcl_DString ds; + Tcl_Obj *transPtr; + + /* + * Now we don't want to link to the absolute, normalized path. + * Relative links are quite acceptable (but links to ~user are not + * -- these must be expanded first). + */ + + transPtr = Tcl_FSGetTranslatedPath(NULL, toPtr); + if (transPtr == NULL) { + return NULL; + } + target = Tcl_GetStringFromObj(transPtr, &targetLen); + target = Tcl_UtfToExternalDString(NULL, target, targetLen, &ds); + Tcl_DecrRefCount(transPtr); + + if (symlink(target, src) != 0) { + toPtr = NULL; + } + Tcl_DStringFree(&ds); } else if (linkAction & TCL_CREATE_HARD_LINK) { - if (link(target, src) != 0) return NULL; + if (link(target, src) != 0) { + return NULL; + } } else { errno = ENODEV; return NULL; } return toPtr; } else { - Tcl_Obj* linkPtr = NULL; + Tcl_Obj *linkPtr = NULL; char link[MAXPATHLEN]; int length; Tcl_DString ds; Tcl_Obj *transPtr; - + transPtr = Tcl_FSGetTranslatedPath(NULL, pathPtr); if (transPtr == NULL) { return NULL; } Tcl_DecrRefCount(transPtr); - + length = readlink(Tcl_FSGetNativePath(pathPtr), link, sizeof(link)); if (length < 0) { return NULL; } Tcl_ExternalToUtfDString(NULL, link, length, &ds); - linkPtr = Tcl_NewStringObj(Tcl_DStringValue(&ds), - Tcl_DStringLength(&ds)); + linkPtr = Tcl_NewStringObj(Tcl_DStringValue(&ds), + Tcl_DStringLength(&ds)); Tcl_DStringFree(&ds); if (linkPtr != NULL) { Tcl_IncrRefCount(linkPtr); @@ -768,39 +969,181 @@ TclpObjLink(pathPtr, toPtr, linkAction) return linkPtr; } } - -#endif - +#endif /* S_IFLNK */ /* *--------------------------------------------------------------------------- * * TclpFilesystemPathType -- * - * This function is part of the native filesystem support, and - * returns the path type of the given path. Right now it simply - * returns NULL. In the future it could return specific path - * types, like 'nfs', 'samba', 'FAT32', etc. + * This function is part of the native filesystem support, and returns + * the path type of the given path. Right now it simply returns NULL. In + * the future it could return specific path types, like 'nfs', 'samba', + * 'FAT32', etc. * * Results: - * NULL at present. + * NULL at present. * * Side effects: * None. * *--------------------------------------------------------------------------- */ -Tcl_Obj* -TclpFilesystemPathType(pathObjPtr) - Tcl_Obj* pathObjPtr; + +Tcl_Obj * +TclpFilesystemPathType( + Tcl_Obj *pathPtr) { - /* All native paths are of the same type */ + /* + * All native paths are of the same type. + */ + return NULL; } /* *--------------------------------------------------------------------------- * + * TclpNativeToNormalized -- + * + * Convert native format to a normalized path object, with refCount of + * zero. + * + * Currently assumes all native paths are actually normalized already, so + * if the path given is not normalized this will actually just convert to + * a valid string path, but not necessarily a normalized one. + * + * Results: + * A valid normalized path. + * + * Side effects: + * None. + * + *--------------------------------------------------------------------------- + */ + +Tcl_Obj * +TclpNativeToNormalized( + ClientData clientData) +{ + Tcl_DString ds; + Tcl_Obj *objPtr; + int len; + + CONST char *copy; + Tcl_ExternalToUtfDString(NULL, (CONST char*)clientData, -1, &ds); + + copy = Tcl_DStringValue(&ds); + len = Tcl_DStringLength(&ds); + + objPtr = Tcl_NewStringObj(copy,len); + Tcl_DStringFree(&ds); + + return objPtr; +} + +/* + *--------------------------------------------------------------------------- + * + * TclNativeCreateNativeRep -- + * + * Create a native representation for the given path. + * + * Results: + * The nativePath representation. + * + * Side effects: + * Memory will be allocated. The path may need to be normalized. + * + *--------------------------------------------------------------------------- + */ + +ClientData +TclNativeCreateNativeRep( + Tcl_Obj *pathPtr) +{ + char *nativePathPtr; + Tcl_DString ds; + Tcl_Obj *validPathPtr; + int len; + char *str; + + if (TclFSCwdIsNative()) { + /* + * The cwd is native, which means we can use the translated path + * without worrying about normalization (this will also usually be + * shorter so the utf-to-external conversion will be somewhat faster). + */ + + validPathPtr = Tcl_FSGetTranslatedPath(NULL, pathPtr); + if (validPathPtr == NULL) { + return NULL; + } + } else { + /* + * Make sure the normalized path is set. + */ + + validPathPtr = Tcl_FSGetNormalizedPath(NULL, pathPtr); + if (validPathPtr == NULL) { + return NULL; + } + Tcl_IncrRefCount(validPathPtr); + } + + str = Tcl_GetStringFromObj(validPathPtr, &len); + Tcl_UtfToExternalDString(NULL, str, len, &ds); + len = Tcl_DStringLength(&ds) + sizeof(char); + Tcl_DecrRefCount(validPathPtr); + nativePathPtr = ckalloc((unsigned) len); + memcpy((void*)nativePathPtr, (void*)Tcl_DStringValue(&ds), (size_t) len); + + Tcl_DStringFree(&ds); + return (ClientData)nativePathPtr; +} + +/* + *--------------------------------------------------------------------------- + * + * TclNativeDupInternalRep -- + * + * Duplicate the native representation. + * + * Results: + * The copied native representation, or NULL if it is not possible to + * copy the representation. + * + * Side effects: + * Memory will be allocated for the copy. + * + *--------------------------------------------------------------------------- + */ + +ClientData +TclNativeDupInternalRep( + ClientData clientData) +{ + char *copy; + size_t len; + + if (clientData == NULL) { + return NULL; + } + + /* + * ASCII representation when running on Unix. + */ + + len = sizeof(char) + (strlen((CONST char*) clientData) * sizeof(char)); + + copy = (char *) ckalloc(len); + memcpy((void *) copy, (void *) clientData, len); + return (ClientData)copy; +} + +/* + *--------------------------------------------------------------------------- + * * TclpUtime -- * * Set the modification date for a file. @@ -813,10 +1156,19 @@ TclpFilesystemPathType(pathObjPtr) * *--------------------------------------------------------------------------- */ -int -TclpUtime(pathPtr, tval) - Tcl_Obj *pathPtr; /* File to modify */ - struct utimbuf *tval; /* New modification date structure */ + +int +TclpUtime( + Tcl_Obj *pathPtr, /* File to modify */ + struct utimbuf *tval) /* New modification date structure */ { - return utime(Tcl_FSGetNativePath(pathPtr),tval); + return utime(Tcl_FSGetNativePath(pathPtr), tval); } + +/* + * Local Variables: + * mode: c + * c-basic-offset: 4 + * fill-column: 78 + * End: + */ |