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-rw-r--r--unix/tclUnixFCmd.c260
1 files changed, 191 insertions, 69 deletions
diff --git a/unix/tclUnixFCmd.c b/unix/tclUnixFCmd.c
index a96a81a..9214345 100644
--- a/unix/tclUnixFCmd.c
+++ b/unix/tclUnixFCmd.c
@@ -80,7 +80,7 @@ static int SetPermissionsAttribute(Tcl_Interp *interp,
int objIndex, Tcl_Obj *fileName,
Tcl_Obj *attributePtr);
static int GetModeFromPermString(Tcl_Interp *interp,
- char *modeStringPtr, mode_t *modePtr);
+ const char *modeStringPtr, mode_t *modePtr);
#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
static int GetReadOnlyAttribute(Tcl_Interp *interp, int objIndex,
Tcl_Obj *fileName, Tcl_Obj **attributePtrPtr);
@@ -93,7 +93,7 @@ static int SetReadOnlyAttribute(Tcl_Interp *interp, int objIndex,
*/
typedef int (TraversalProc)(Tcl_DString *srcPtr, Tcl_DString *dstPtr,
- CONST Tcl_StatBuf *statBufPtr, int type, Tcl_DString *errorPtr);
+ const Tcl_StatBuf *statBufPtr, int type, Tcl_DString *errorPtr);
/*
* Constants and variables necessary for file attributes subcommand.
@@ -110,7 +110,7 @@ typedef int (TraversalProc)(Tcl_DString *srcPtr, Tcl_DString *dstPtr,
*/
extern TclFileAttrProcs tclpFileAttrProcs[];
-extern char *tclpFileAttrStrings[];
+extern const char *const tclpFileAttrStrings[];
#else
enum {
@@ -125,8 +125,8 @@ enum {
UNIX_INVALID_ATTRIBUTE /* lint - last enum value needs no trailing , */
};
-MODULE_SCOPE CONST char *tclpFileAttrStrings[];
-CONST char *tclpFileAttrStrings[] = {
+MODULE_SCOPE const char *const tclpFileAttrStrings[];
+const char *const tclpFileAttrStrings[] = {
"-group", "-owner", "-permissions",
#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
"-readonly",
@@ -137,8 +137,8 @@ CONST char *tclpFileAttrStrings[] = {
NULL
};
-MODULE_SCOPE CONST TclFileAttrProcs tclpFileAttrProcs[];
-CONST TclFileAttrProcs tclpFileAttrProcs[] = {
+MODULE_SCOPE const TclFileAttrProcs tclpFileAttrProcs[];
+const TclFileAttrProcs tclpFileAttrProcs[] = {
{GetGroupAttribute, SetGroupAttribute},
{GetOwnerAttribute, SetOwnerAttribute},
{GetPermissionsAttribute, SetPermissionsAttribute},
@@ -173,19 +173,20 @@ CONST TclFileAttrProcs tclpFileAttrProcs[] = {
* Declarations for local procedures defined in this file:
*/
-static int CopyFileAtts(CONST char *src,
- CONST char *dst, CONST Tcl_StatBuf *statBufPtr);
-static int DoCopyFile(CONST char *srcPtr, CONST char *dstPtr,
- CONST Tcl_StatBuf *statBufPtr);
-static int DoCreateDirectory(CONST char *pathPtr);
+static int CopyFileAtts(const char *src,
+ const char *dst, const Tcl_StatBuf *statBufPtr);
+static const char * DefaultTempDir(void);
+static int DoCopyFile(const char *srcPtr, const char *dstPtr,
+ const Tcl_StatBuf *statBufPtr);
+static int DoCreateDirectory(const char *pathPtr);
static int DoRemoveDirectory(Tcl_DString *pathPtr,
int recursive, Tcl_DString *errorPtr);
-static int DoRenameFile(CONST char *src, CONST char *dst);
+static int DoRenameFile(const char *src, const char *dst);
static int TraversalCopy(Tcl_DString *srcPtr,
- Tcl_DString *dstPtr, CONST Tcl_StatBuf *statBufPtr,
+ Tcl_DString *dstPtr, const Tcl_StatBuf *statBufPtr,
int type, Tcl_DString *errorPtr);
static int TraversalDelete(Tcl_DString *srcPtr,
- Tcl_DString *dstPtr, CONST Tcl_StatBuf *statBufPtr,
+ Tcl_DString *dstPtr, const Tcl_StatBuf *statBufPtr,
int type, Tcl_DString *errorPtr);
static int TraverseUnixTree(TraversalProc *traversalProc,
Tcl_DString *sourcePtr, Tcl_DString *destPtr,
@@ -199,11 +200,11 @@ static int TraverseUnixTree(TraversalProc *traversalProc,
* passing the standard MAXPATHLEN size resolved arg.
*/
-static char * Realpath(CONST char *path, char *resolved);
+static char * Realpath(const char *path, char *resolved);
char *
Realpath(
- CONST char *path,
+ const char *path,
char *resolved)
{
memset(resolved, 0, MAXPATHLEN);
@@ -295,9 +296,9 @@ TclpObjRenameFile(
static int
DoRenameFile(
- CONST char *src, /* Pathname of file or dir to be renamed
+ const char *src, /* Pathname of file or dir to be renamed
* (native). */
- CONST char *dst) /* New pathname of file or directory
+ const char *dst) /* New pathname of file or directory
* (native). */
{
if (rename(src, dst) == 0) { /* INTL: Native. */
@@ -405,7 +406,7 @@ TclpObjCopyFile(
Tcl_Obj *srcPathPtr,
Tcl_Obj *destPathPtr)
{
- CONST char *src = Tcl_FSGetNativePath(srcPathPtr);
+ const char *src = Tcl_FSGetNativePath(srcPathPtr);
Tcl_StatBuf srcStatBuf;
if (TclOSlstat(src, &srcStatBuf) != 0) { /* INTL: Native. */
@@ -417,9 +418,9 @@ TclpObjCopyFile(
static int
DoCopyFile(
- CONST char *src, /* Pathname of file to be copied (native). */
- CONST char *dst, /* Pathname of file to copy to (native). */
- CONST Tcl_StatBuf *statBufPtr)
+ const char *src, /* Pathname of file to be copied (native). */
+ const char *dst, /* Pathname of file to copy to (native). */
+ const Tcl_StatBuf *statBufPtr)
/* Used to determine filetype. */
{
Tcl_StatBuf dstStatBuf;
@@ -449,15 +450,16 @@ DoCopyFile(
switch ((int) (statBufPtr->st_mode & S_IFMT)) {
#ifndef DJGPP
case S_IFLNK: {
- char link[MAXPATHLEN];
+ char linkBuf[MAXPATHLEN];
int length;
- length = readlink(src, link, sizeof(link)); /* INTL: Native. */
+ length = readlink(src, linkBuf, sizeof(linkBuf));
+ /* INTL: Native. */
if (length == -1) {
return TCL_ERROR;
}
- link[length] = '\0';
- if (symlink(link, dst) < 0) { /* INTL: Native. */
+ linkBuf[length] = '\0';
+ if (symlink(linkBuf, dst) < 0) { /* INTL: Native. */
return TCL_ERROR;
}
#ifdef MAC_OSX_TCL
@@ -503,10 +505,10 @@ DoCopyFile(
int
TclUnixCopyFile(
- CONST char *src, /* Pathname of file to copy (native). */
- CONST char *dst, /* Pathname of file to create/overwrite
+ const char *src, /* Pathname of file to copy (native). */
+ const char *dst, /* Pathname of file to create/overwrite
* (native). */
- CONST Tcl_StatBuf *statBufPtr,
+ const Tcl_StatBuf *statBufPtr,
/* Used to determine mode and blocksize. */
int dontCopyAtts) /* If flag set, don't copy attributes. */
{
@@ -521,6 +523,8 @@ TclUnixCopyFile(
#define BINMODE
#endif
+#define DEFAULT_COPY_BLOCK_SIZE 4069
+
if ((srcFd = TclOSopen(src, O_RDONLY BINMODE, 0)) < 0) { /* INTL: Native */
return TCL_ERROR;
}
@@ -547,11 +551,11 @@ TclUnixCopyFile(
if (fstatfs(srcFd, &fs) == 0) {
blockSize = fs.f_bsize;
} else {
- blockSize = 4096;
+ blockSize = DEFAULT_COPY_BLOCK_SIZE;
}
}
#else
- blockSize = 4096;
+ blockSize = DEFAULT_COPY_BLOCK_SIZE;
#endif /* HAVE_STRUCT_STAT_ST_BLKSIZE */
/*
@@ -563,7 +567,7 @@ TclUnixCopyFile(
*/
if (blockSize <= 0) {
- blockSize = 4096;
+ blockSize = DEFAULT_COPY_BLOCK_SIZE;
}
buffer = ckalloc(blockSize);
while (1) {
@@ -626,9 +630,9 @@ TclpObjDeleteFile(
int
TclpDeleteFile(
- CONST char *path) /* Pathname of file to be removed (native). */
+ const void *path) /* Pathname of file to be removed (native). */
{
- if (unlink(path) != 0) { /* INTL: Native. */
+ if (unlink((const char *)path) != 0) {
return TCL_ERROR;
}
return TCL_OK;
@@ -669,7 +673,7 @@ TclpObjCreateDirectory(
static int
DoCreateDirectory(
- CONST char *path) /* Pathname of directory to create (native). */
+ const char *path) /* Pathname of directory to create (native). */
{
mode_t mode;
@@ -816,7 +820,7 @@ DoRemoveDirectory(
* filled with UTF-8 name of file causing
* error. */
{
- CONST char *path;
+ const char *path;
mode_t oldPerm = 0;
int result;
@@ -914,7 +918,7 @@ TraverseUnixTree(
* files. */
{
Tcl_StatBuf statBuf;
- CONST char *source, *errfile;
+ const char *source, *errfile;
int result, sourceLen;
int targetLen;
#ifndef HAVE_FTS
@@ -922,7 +926,7 @@ TraverseUnixTree(
Tcl_DirEntry *dirEntPtr;
DIR *dirPtr;
#else
- CONST char *paths[2] = {NULL, NULL};
+ const char *paths[2] = {NULL, NULL};
FTS *fts = NULL;
FTSENT *ent;
#endif
@@ -941,7 +945,7 @@ TraverseUnixTree(
* Process the regular file
*/
- return (*traverseProc)(sourcePtr, targetPtr, &statBuf, DOTREE_F,
+ return traverseProc(sourcePtr, targetPtr, &statBuf, DOTREE_F,
errorPtr);
}
#ifndef HAVE_FTS
@@ -954,7 +958,7 @@ TraverseUnixTree(
errfile = source;
goto end;
}
- result = (*traverseProc)(sourcePtr, targetPtr, &statBuf, DOTREE_PRED,
+ result = traverseProc(sourcePtr, targetPtr, &statBuf, DOTREE_PRED,
errorPtr);
if (result != TCL_OK) {
closedir(dirPtr);
@@ -1028,7 +1032,7 @@ TraverseUnixTree(
* that directory.
*/
- result = (*traverseProc)(sourcePtr, targetPtr, &statBuf, DOTREE_POSTD,
+ result = traverseProc(sourcePtr, targetPtr, &statBuf, DOTREE_POSTD,
errorPtr);
}
#else /* HAVE_FTS */
@@ -1051,7 +1055,7 @@ TraverseUnixTree(
unsigned short pathlen = ent->fts_pathlen - sourceLen;
int type;
Tcl_StatBuf *statBufPtr = NULL;
-
+
if (info == FTS_DNR || info == FTS_ERR || info == FTS_NS) {
errfile = ent->fts_path;
break;
@@ -1082,7 +1086,7 @@ TraverseUnixTree(
statBufPtr = (Tcl_StatBuf *) ent->fts_statp;
}
}
- result = (*traverseProc)(sourcePtr, targetPtr, statBufPtr, type,
+ result = traverseProc(sourcePtr, targetPtr, statBufPtr, type,
errorPtr);
if (result != TCL_OK) {
break;
@@ -1132,7 +1136,7 @@ static int
TraversalCopy(
Tcl_DString *srcPtr, /* Source pathname to copy (native). */
Tcl_DString *dstPtr, /* Destination pathname of copy (native). */
- CONST Tcl_StatBuf *statBufPtr,
+ const Tcl_StatBuf *statBufPtr,
/* Stat info for file specified by srcPtr. */
int type, /* Reason for call - see TraverseUnixTree(). */
Tcl_DString *errorPtr) /* If non-NULL, uninitialized or free DString
@@ -1196,7 +1200,7 @@ static int
TraversalDelete(
Tcl_DString *srcPtr, /* Source pathname (native). */
Tcl_DString *ignore, /* Destination pathname (not used). */
- CONST Tcl_StatBuf *statBufPtr,
+ const Tcl_StatBuf *statBufPtr,
/* Stat info for file specified by srcPtr. */
int type, /* Reason for call - see TraverseUnixTree(). */
Tcl_DString *errorPtr) /* If non-NULL, uninitialized or free DString
@@ -1244,9 +1248,9 @@ TraversalDelete(
static int
CopyFileAtts(
- CONST char *src, /* Path name of source file (native). */
- CONST char *dst, /* Path name of target file (native). */
- CONST Tcl_StatBuf *statBufPtr)
+ const char *src, /* Path name of source file (native). */
+ const char *dst, /* Path name of target file (native). */
+ const Tcl_StatBuf *statBufPtr)
/* Stat info for source file */
{
struct utimbuf tval;
@@ -1327,7 +1331,7 @@ GetGroupAttribute(
*attributePtrPtr = Tcl_NewIntObj((int) statBuf.st_gid);
} else {
Tcl_DString ds;
- CONST char *utf;
+ const char *utf;
utf = Tcl_ExternalToUtfDString(NULL, groupPtr->gr_name, -1, &ds);
*attributePtrPtr = Tcl_NewStringObj(utf, -1);
@@ -1381,7 +1385,7 @@ GetOwnerAttribute(
*attributePtrPtr = Tcl_NewIntObj((int) statBuf.st_uid);
} else {
Tcl_DString ds;
- CONST char *utf;
+ const char *utf;
utf = Tcl_ExternalToUtfDString(NULL, pwPtr->pw_name, -1, &ds);
*attributePtrPtr = Tcl_NewStringObj(utf, Tcl_DStringLength(&ds));
@@ -1458,12 +1462,12 @@ SetGroupAttribute(
{
long gid;
int result;
- CONST char *native;
+ const char *native;
if (Tcl_GetLongFromObj(NULL, attributePtr, &gid) != TCL_OK) {
Tcl_DString ds;
struct group *groupPtr = NULL;
- CONST char *string;
+ const char *string;
int length;
string = Tcl_GetStringFromObj(attributePtr, &length);
@@ -1522,12 +1526,12 @@ SetOwnerAttribute(
{
long uid;
int result;
- CONST char *native;
+ const char *native;
if (Tcl_GetLongFromObj(NULL, attributePtr, &uid) != TCL_OK) {
Tcl_DString ds;
struct passwd *pwPtr = NULL;
- CONST char *string;
+ const char *string;
int length;
string = Tcl_GetStringFromObj(attributePtr, &length);
@@ -1587,8 +1591,8 @@ SetPermissionsAttribute(
long mode;
mode_t newMode;
int result = TCL_ERROR;
- CONST char *native;
- char *modeStringPtr = TclGetString(attributePtr);
+ const char *native;
+ const char *modeStringPtr = TclGetString(attributePtr);
int scanned = TclParseAllWhiteSpace(modeStringPtr, -1);
/*
@@ -1672,7 +1676,8 @@ SetPermissionsAttribute(
Tcl_Obj *
TclpObjListVolumes(void)
{
- Tcl_Obj *resultPtr = Tcl_NewStringObj("/", 1);
+ Tcl_Obj *resultPtr;
+ TclNewLiteralStringObj(resultPtr, "/");
Tcl_IncrRefCount(resultPtr);
return resultPtr;
@@ -1700,7 +1705,7 @@ TclpObjListVolumes(void)
static int
GetModeFromPermString(
Tcl_Interp *interp, /* The interp we are using for errors. */
- char *modeStringPtr, /* Permissions string */
+ const char *modeStringPtr, /* Permissions string */
mode_t *modePtr) /* pointer to the mode value */
{
mode_t newMode;
@@ -1893,14 +1898,14 @@ TclpObjNormalizePath(
Tcl_Obj *pathPtr,
int nextCheckpoint)
{
- char *currentPathEndPosition;
+ const char *currentPathEndPosition;
int pathLen;
char cur;
- char *path = Tcl_GetStringFromObj(pathPtr, &pathLen);
+ const char *path = Tcl_GetStringFromObj(pathPtr, &pathLen);
+ Tcl_DString ds;
+ const char *nativePath;
#ifndef NO_REALPATH
char normPath[MAXPATHLEN];
- Tcl_DString ds;
- CONST char *nativePath;
#endif
/*
@@ -1952,8 +1957,6 @@ TclpObjNormalizePath(
* Reached directory separator.
*/
- Tcl_DString ds;
- CONST char *nativePath;
int accessOk;
nativePath = Tcl_UtfToExternalDString(NULL, path,
@@ -2004,7 +2007,7 @@ TclpObjNormalizePath(
return 0;
}
- nativePath = Tcl_UtfToExternalDString(NULL, path, nextCheckpoint, &ds);
+ nativePath = Tcl_UtfToExternalDString(NULL, path,nextCheckpoint, &ds);
if (Realpath(nativePath, normPath) != NULL) {
int newNormLen;
@@ -2079,6 +2082,126 @@ TclpObjNormalizePath(
return nextCheckpoint;
}
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclpOpenTemporaryFile --
+ *
+ * Creates a temporary file, possibly based on the supplied bits and
+ * pieces of template supplied in the first three arguments. If the
+ * fourth argument is non-NULL, it contains a Tcl_Obj to store the name
+ * of the temporary file in (and it is caller's responsibility to clean
+ * up). If the fourth argument is NULL, try to arrange for the temporary
+ * file to go away once it is no longer needed.
+ *
+ * Results:
+ * A read-write Tcl Channel open on the file.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Channel
+TclpOpenTemporaryFile(
+ Tcl_Obj *dirObj,
+ Tcl_Obj *basenameObj,
+ Tcl_Obj *extensionObj,
+ Tcl_Obj *resultingNameObj)
+{
+ Tcl_Channel chan;
+ Tcl_DString template, tmp;
+ const char *string;
+ int len, fd;
+
+ if (dirObj) {
+ string = Tcl_GetStringFromObj(dirObj, &len);
+ Tcl_UtfToExternalDString(NULL, string, len, &template);
+ } else {
+ Tcl_DStringInit(&template);
+ Tcl_DStringAppend(&template, DefaultTempDir(), -1); /* INTL: native */
+ }
+
+ Tcl_DStringAppend(&template, "/", -1);
+
+ if (basenameObj) {
+ string = Tcl_GetStringFromObj(basenameObj, &len);
+ Tcl_UtfToExternalDString(NULL, string, len, &tmp);
+ Tcl_DStringAppend(&template, Tcl_DStringValue(&tmp), -1);
+ Tcl_DStringFree(&tmp);
+ } else {
+ Tcl_DStringAppend(&template, "tcl", -1);
+ }
+
+ Tcl_DStringAppend(&template, "_XXXXXX", -1);
+
+#ifdef HAVE_MKSTEMPS
+ if (extensionObj) {
+ string = Tcl_GetStringFromObj(extensionObj, &len);
+ Tcl_UtfToExternalDString(NULL, string, len, &tmp);
+ Tcl_DStringAppend(&template, Tcl_DStringValue(&tmp), -1);
+ fd = mkstemps(Tcl_DStringValue(&template), Tcl_DStringLength(&tmp));
+ Tcl_DStringFree(&tmp);
+ } else
+#endif
+ {
+ fd = mkstemp(Tcl_DStringValue(&template));
+ }
+
+ if (fd == -1) {
+ return NULL;
+ }
+ chan = Tcl_MakeFileChannel(INT2PTR(fd), TCL_READABLE|TCL_WRITABLE);
+ if (resultingNameObj) {
+ Tcl_ExternalToUtfDString(NULL, Tcl_DStringValue(&template),
+ Tcl_DStringLength(&template), &tmp);
+ Tcl_SetStringObj(resultingNameObj, Tcl_DStringValue(&tmp),
+ Tcl_DStringLength(&tmp));
+ Tcl_DStringFree(&tmp);
+ } else {
+ /*
+ * Try to delete the file immediately since we're not reporting the
+ * name to anyone. Note that we're *not* handling any errors from
+ * this!
+ */
+
+ unlink(Tcl_DStringValue(&template));
+ errno = 0;
+ }
+ Tcl_DStringFree(&template);
+
+ return chan;
+}
+
+/*
+ * Helper that does *part* of what tempnam() does.
+ */
+
+static const char *
+DefaultTempDir(void)
+{
+ const char *dir;
+ struct stat buf;
+
+ dir = getenv("TMPDIR");
+ if (dir && dir[0] && stat(dir, &buf) == 0 && S_ISDIR(buf.st_mode)
+ && access(dir, W_OK)) {
+ return dir;
+ }
+
+#ifdef P_tmpdir
+ dir = P_tmpdir;
+ if (stat(dir, &buf) == 0 && S_ISDIR(buf.st_mode) && access(dir, W_OK)) {
+ return dir;
+ }
+#endif
+
+ /*
+ * Assume that "/tmp" is always an existing writable directory; we've no
+ * recovery mechanism if it isn't.
+ */
+
+ return "/tmp";
+}
+
#if defined(HAVE_CHFLAGS) && defined(UF_IMMUTABLE)
/*
*----------------------------------------------------------------------
@@ -2147,9 +2270,8 @@ SetReadOnlyAttribute(
Tcl_Obj *attributePtr) /* The attribute to set. */
{
Tcl_StatBuf statBuf;
- int result;
- int readonly;
- CONST char *native;
+ int result, readonly;
+ const char *native;
if (Tcl_GetBooleanFromObj(interp, attributePtr, &readonly) != TCL_OK) {
return TCL_ERROR;
generated by cgit v0.12 at 2024-07-15 14:36:23 (GMT)