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*** tcl.h.orig Mon Aug 18 21:11:15 1997
--- tcl.h Mon Aug 18 21:11:22 1997
***************
*** 918,923 ****
--- 918,935 ----
} Tcl_EolTranslation;
/*
+ * Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * Support of Tcl-Trf (binio).
+ *
+ * Enum for different byteorders.
+ */
+
+ typedef enum Tcl_ByteOrder {
+ TCL_BIGENDIAN, /* Multibyte words are stored with MSB first */
+ TCL_SMALLENDIAN /* Multibyte words are stored with MSB last */
+ } Tcl_ByteOrder;
+
+ /*
* struct Tcl_ChannelType:
*
* One such structure exists for each type (kind) of channel.
***************
*** 1201,1206 ****
--- 1213,1224 ----
char *chanName, int *modePtr));
EXTERN int Tcl_GetChannelBufferSize _ANSI_ARGS_((
Tcl_Channel chan));
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * Support of Tcl-Trf (binio).
+ */
+ EXTERN Tcl_ByteOrder Tcl_GetChannelByteorder _ANSI_ARGS_((
+ Tcl_Channel chan));
+ EXTERN Tcl_ByteOrder Tcl_GetHostByteorder _ANSI_ARGS_((void));
EXTERN int Tcl_GetChannelHandle _ANSI_ARGS_((Tcl_Channel chan,
int direction, ClientData *handlePtr));
EXTERN ClientData Tcl_GetChannelInstanceData _ANSI_ARGS_((
*** tclIO.c.orig Mon Aug 18 21:11:15 1997
--- tclIO.c Mon Aug 18 21:11:22 1997
***************
*** 127,132 ****
--- 127,136 ----
* code, is dynamically allocated. */
int flags; /* ORed combination of the flags defined
* below. */
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * Support of Tcl-Trf (binio).
+ */
+ Tcl_ByteOrder byteOrder; /* byteorder associated to this channel */
Tcl_EolTranslation inputTranslation;
/* What translation to apply for end of line
* sequences on input? */
***************
*** 1194,1199 ****
--- 1198,1207 ----
* indicator (e.g. ^Z) and does not append an EOF indicator to files.
*/
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * Support of Tcl-Trf (binio).
+ */
+ chanPtr->byteOrder = Tcl_GetHostByteorder ();
chanPtr->inputTranslation = TCL_TRANSLATE_AUTO;
chanPtr->outputTranslation = TCL_PLATFORM_TRANSLATION;
chanPtr->inEofChar = 0;
***************
*** 3912,3918 ****
{
if (interp) {
CONST char *genericopt =
! "blocking buffering buffersize eofchar translation";
char **argv;
int argc, i;
Tcl_DString ds;
--- 3920,3926 ----
{
if (interp) {
CONST char *genericopt =
! "blocking buffering buffersize byteorder eofchar translation";
char **argv;
int argc, i;
Tcl_DString ds;
***************
*** 3945,3950 ****
--- 3953,4013 ----
/*
*----------------------------------------------------------------------
*
+ * Tcl_GetChannelByteorder --
+ *
+ * Retrieves the byteorder set for this channel.
+ *
+ * Results:
+ * The size.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+ Tcl_ByteOrder
+ Tcl_GetChannelByteorder(chan)
+ Tcl_Channel chan; /* The channel for which to find the
+ * buffer size. */
+ {
+ Channel *chanPtr;
+
+ chanPtr = (Channel *) chan;
+ return chanPtr->byteOrder;
+ }
+
+ /*
+ *----------------------------------------------------------------------
+ *
+ * Tcl_GetHostByteorder --
+ *
+ * Retrieves the byteorder of the machine we are running on.
+ *
+ * Results:
+ * The size.
+ *
+ * Side effects:
+ * None.
+ *
+ *----------------------------------------------------------------------
+ */
+
+ Tcl_ByteOrder
+ Tcl_GetHostByteorder()
+ {
+ union {
+ char c[sizeof(short)];
+ short s;
+ } order;
+
+ order.s = 1;
+ return (order.c[0] == 1) ? TCL_SMALLENDIAN : TCL_BIGENDIAN;
+ }
+
+ /*
+ *----------------------------------------------------------------------
+ *
* Tcl_GetChannelOption --
*
* Gets a mode associated with an IO channel. If the optionName arg
***************
*** 4046,4051 ****
--- 4109,4128 ----
return TCL_OK;
}
}
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * Support of Tcl-Trf (binio).
+ */
+ if ((len == 0) || ((len > 2) && (optionName[1] == 'b') &&
+ (strncmp(optionName, "-byteorder", len) == 0))) {
+ if (len == 0) {
+ Tcl_DStringAppendElement(dsPtr, "-byteorder");
+ }
+ Tcl_DStringAppendElement(dsPtr,
+ (chanPtr->byteOrder == TCL_BIGENDIAN) ? "bigendian" : "smallendian");
+ if (len > 0) {
+ return TCL_OK;
+ }
+ }
if ((len == 0) ||
((len > 1) && (optionName[1] == 'e') &&
(strncmp(optionName, "-eofchar", len) == 0))) {
***************
*** 4246,4251 ****
--- 4323,4358 ----
chanPtr->bufSize = CHANNELBUFFER_DEFAULT_SIZE;
}
return TCL_OK;
+ }
+
+ /* Andreas Kupries <andreas_kupries@users.sourceforge.net>, 05/31/1997.
+ * Support of Tcl-Trf (binio).
+ */
+ if ((len > 2) && (optionName[1] == 'b') &&
+ (strncmp(optionName, "-byteorder", len) == 0)) {
+ int nv_len = strlen (newValue);
+
+ if ((nv_len > 0) && (strncmp (newValue, "smallendian", nv_len) == 0)) {
+ chanPtr->byteOrder = TCL_SMALLENDIAN;
+ return TCL_OK;
+ } else if ((nv_len > 0) && (strncmp (newValue, "littleendian", nv_len) == 0)) {
+ chanPtr->byteOrder = TCL_SMALLENDIAN;
+ return TCL_OK;
+ } else if ((nv_len > 0) && (strncmp (newValue, "network", nv_len) == 0)) {
+ chanPtr->byteOrder = TCL_BIGENDIAN;
+ return TCL_OK;
+ } else if ((nv_len > 0) && (strncmp (newValue, "bigendian", nv_len) == 0)) {
+ chanPtr->byteOrder = TCL_BIGENDIAN;
+ return TCL_OK;
+ }
+
+ if (interp != (Tcl_Interp *) NULL) {
+ Tcl_AppendResult(interp,
+ "bad value for -byteorder: ",
+ "must be one of smallendian, littleendian, bigendian or network",
+ (char *) NULL);
+ }
+ return TCL_ERROR;
}
if ((len > 1) && (optionName[1] == 'e') &&
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