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| author | dkf <donal.k.fellows@manchester.ac.uk> | 2012-04-29 07:18:30 (GMT) |
|---|---|---|
| committer | dkf <donal.k.fellows@manchester.ac.uk> | 2012-04-29 07:18:30 (GMT) |
| commit | 6dc349d4991d4514c4419c39e9918cf4c7998cfd (patch) | |
| tree | e286556de6a20c057d0577d78b88e5ffb4ee0197 /generic/tclZlib.c | |
| parent | f8900a54702510fa7e6068221cba71c5f8920f01 (diff) | |
| download | tcl-6dc349d4991d4514c4419c39e9918cf4c7998cfd.zip tcl-6dc349d4991d4514c4419c39e9918cf4c7998cfd.tar.gz tcl-6dc349d4991d4514c4419c39e9918cf4c7998cfd.tar.bz2 | |
Differentiate what options may be set by format type.
Diffstat (limited to 'generic/tclZlib.c')
| -rw-r--r-- | generic/tclZlib.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/generic/tclZlib.c b/generic/tclZlib.c index 51d6beb..a1b8afc 100644 --- a/generic/tclZlib.c +++ b/generic/tclZlib.c @@ -83,6 +83,9 @@ typedef struct { * for compression on output, or * TCL_ZLIB_STREAM_INFLATE for decompression * on input. */ + int format; /* What format of data is going on the wire. + * Needed so that the correct [fconfigure] + * options can be enabled. */ z_stream inStream; /* Structure used by zlib for decompression of * input. */ z_stream outStream; /* Structure used by zlib for compression of @@ -1985,7 +1988,6 @@ ZlibStreamSubcmd( { NULL, NULL } }; const OptDescriptor gzipOpts[] = { - { "-dictionary", &compDictObj }, { "-header", &gzipHeaderObj }, { "-level", &levelObj }, { NULL, NULL } @@ -2038,7 +2040,7 @@ ZlibStreamSubcmd( format = TCL_ZLIB_FORMAT_GZIP; break; case FMT_GUNZIP: - desc = expansionOpts; + desc = expansionOpts; // FIXME - get header, not set compDict mode = TCL_ZLIB_STREAM_INFLATE; format = TCL_ZLIB_FORMAT_GZIP; break; @@ -2258,6 +2260,12 @@ ZlibPushSubcmd( Tcl_SetErrorCode(interp, "TCL", "ZIP", "NOVAL", NULL); return TCL_ERROR; } + if (format == TCL_ZLIB_FORMAT_GZIP) { + Tcl_AppendResult(interp, "a compression dictionary may not " + "be set in the gzip format", NULL); + Tcl_SetErrorCode(interp, "TCL", "ZIP", "BADOPT", NULL); + return TCL_ERROR; + } compDictObj = objv[i]; break; } @@ -2748,9 +2756,11 @@ ZlibTransformSetOption( /* not used */ Tcl_DriverSetOptionProc *setOptionProc = Tcl_ChannelSetOptionProc(Tcl_GetChannelType(cd->parent)); static const char *chanOptions = "dictionary flush"; + static const char *gzipChanOptions = "flush"; int haveFlushOpt = (cd->mode == TCL_ZLIB_STREAM_DEFLATE); - if (optionName && strcmp(optionName, "-dictionary") == 0) { + if (optionName && (strcmp(optionName, "-dictionary") == 0) + && (cd->format != TCL_ZLIB_FORMAT_GZIP)) { Tcl_Obj *compDictObj; TclNewStringObj(compDictObj, value, strlen(value)); @@ -2809,7 +2819,11 @@ ZlibTransformSetOption( /* not used */ } if (setOptionProc == NULL) { - return Tcl_BadChannelOption(interp, optionName, chanOptions); + if (cd->format == TCL_ZLIB_FORMAT_GZIP) { + return Tcl_BadChannelOption(interp, optionName, gzipChanOptions); + } else { + return Tcl_BadChannelOption(interp, optionName, chanOptions); + } } return setOptionProc(Tcl_GetChannelInstanceData(cd->parent), interp, @@ -2854,7 +2868,8 @@ ZlibTransformGetOption( } } - if (optionName == NULL || strcmp(optionName, "-dictionary") == 0) { + if ((cd->format != TCL_ZLIB_FORMAT_GZIP) && + (optionName == NULL || strcmp(optionName, "-dictionary") == 0)) { /* * Embedded NUL bytes are ok; they'll be C080-encoded. */ @@ -3051,6 +3066,7 @@ ZlibStackChannelTransform( memset(cd, 0, sizeof(ZlibChannelData)); cd->mode = mode; + cd->format = format; if (format == TCL_ZLIB_FORMAT_GZIP || format == TCL_ZLIB_FORMAT_AUTO) { if (mode == TCL_ZLIB_STREAM_DEFLATE) { |