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authordkf <donal.k.fellows@manchester.ac.uk>2012-06-06 10:34:12 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2012-06-06 10:34:12 (GMT)
commiteb41635caa3911f42cd3be3ed014fc094e50b614 (patch)
treeafbb04093fafe0319e79521a038cdad18d2fbf16 /generic
parentdd548295cad0d0d2a8171953d79a2380efdd7244 (diff)
downloadtcl-eb41635caa3911f42cd3be3ed014fc094e50b614.zip
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making the -dictionary option work with streams
Diffstat (limited to 'generic')
-rw-r--r--generic/tclZlib.c48
1 files changed, 38 insertions, 10 deletions
diff --git a/generic/tclZlib.c b/generic/tclZlib.c
index 22ab061..63d2aca 100644
--- a/generic/tclZlib.c
+++ b/generic/tclZlib.c
@@ -2339,7 +2339,7 @@ ZlibStreamCmd(
{
Tcl_ZlibStream zstream = cd;
int command, index, count, code, buffersize = -1, flush = -1, i;
- Tcl_Obj *obj;
+ Tcl_Obj *obj, *compDictObj = NULL;
static const char *const cmds[] = {
"add", "checksum", "close", "eof", "finalize", "flush",
"fullflush", "get", "header", "put", "reset",
@@ -2404,7 +2404,7 @@ ZlibStreamCmd(
Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
return TCL_ERROR;
}
- if (Tcl_GetIntFromObj(interp, objv[i+1],
+ if (Tcl_GetIntFromObj(interp, objv[++i],
&buffersize) != TCL_OK) {
return TCL_ERROR;
}
@@ -2417,10 +2417,15 @@ ZlibStreamCmd(
}
break;
case ao_dictionary:
- Tcl_AppendResult(interp,
- "\"-dictionary\" option not implemented", NULL);
- Tcl_SetErrorCode(interp, "TCL", "ZIP", "BADOPT", NULL);
- return TCL_ERROR;
+ if (i == objc-2) {
+ Tcl_AppendResult(interp, "\"-dictionary\" option must be "
+ "followed by compression dictionary bytes",
+ NULL);
+ Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
+ return TCL_ERROR;
+ }
+ compDictObj = objv[++i];
+ break;
}
if (flush == -2) {
@@ -2434,6 +2439,15 @@ ZlibStreamCmd(
flush = 0;
}
+ if (compDictObj != NULL) {
+ int len;
+
+ (void) Tcl_GetByteArrayFromObj(compDictObj, &len);
+ if (len == 0) {
+ compDictObj = NULL;
+ }
+ Tcl_ZlibStreamSetCompressionDictionary(zstream, compDictObj);
+ }
if (Tcl_ZlibStreamPut(zstream, objv[objc-1], flush) != TCL_OK) {
return TCL_ERROR;
}
@@ -2481,10 +2495,15 @@ ZlibStreamCmd(
Tcl_SetErrorCode(interp, "TCL", "ZIP", "BADOPT", NULL);
return TCL_ERROR;
case ao_dictionary:
- Tcl_AppendResult(interp,
- "\"-dictionary\" option not implemented", NULL);
- Tcl_SetErrorCode(interp, "TCL", "ZIP", "BADOPT", NULL);
- return TCL_ERROR;
+ if (i == objc-2) {
+ Tcl_AppendResult(interp, "\"-dictionary\" option must be "
+ "followed by compression dictionary bytes",
+ NULL);
+ Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL);
+ return TCL_ERROR;
+ }
+ compDictObj = objv[++i];
+ break;
}
if (flush == -2) {
Tcl_AppendResult(interp, "\"-flush\", \"-fullflush\" and "
@@ -2496,6 +2515,15 @@ ZlibStreamCmd(
if (flush == -1) {
flush = 0;
}
+ if (compDictObj != NULL) {
+ int len;
+
+ (void) Tcl_GetByteArrayFromObj(compDictObj, &len);
+ if (len == 0) {
+ compDictObj = NULL;
+ }
+ Tcl_ZlibStreamSetCompressionDictionary(zstream, compDictObj);
+ }
return Tcl_ZlibStreamPut(zstream, objv[objc-1], flush);
case zs_get: /* $strm get ?count? */