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| author | hobbs <hobbs> | 2005-05-11 00:51:27 (GMT) |
|---|---|---|
| committer | hobbs <hobbs> | 2005-05-11 00:51:27 (GMT) |
| commit | 46cebd1d1935554f6878e109235fae5ba1dbacf5 (patch) | |
| tree | af078bfb0b6e3f7cf99be6ad9b8eb8b4504bb3c7 /generic/tclCmdMZ.c | |
| parent | 2bfc68501866a3efdbc3da722c3968f8ce0004ec (diff) | |
| download | tcl-46cebd1d1935554f6878e109235fae5ba1dbacf5.zip tcl-46cebd1d1935554f6878e109235fae5ba1dbacf5.tar.gz tcl-46cebd1d1935554f6878e109235fae5ba1dbacf5.tar.bz2 | |
* tests/string.test: string-10.[21-30]
* generic/tclCmdMZ.c (Tcl_StringObjCmd): add extra checks to
prevent possible UMR in unichar cmp function for string map.
Diffstat (limited to 'generic/tclCmdMZ.c')
| -rw-r--r-- | generic/tclCmdMZ.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c index aee76d3..91e4b1e 100644 --- a/generic/tclCmdMZ.c +++ b/generic/tclCmdMZ.c @@ -15,7 +15,7 @@ * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. * - * RCS: @(#) $Id: tclCmdMZ.c,v 1.118 2005/05/10 18:34:08 kennykb Exp $ + * RCS: @(#) $Id: tclCmdMZ.c,v 1.119 2005/05/11 00:51:28 hobbs Exp $ */ #include "tclInt.h" @@ -1907,7 +1907,8 @@ Tcl_StringObjCmd(dummy, interp, objc, objv) ustring2 = Tcl_GetUnicodeFromObj(mapElemv[0], &length2); p = ustring1; - if (length2 == 0) { + if ((length2 > length1) || (length2 == 0)) { + /* match string is either longer than input or empty */ ustring1 = end; } else { mapString = Tcl_GetUnicodeFromObj(mapElemv[1], &mapLen); @@ -1965,6 +1966,8 @@ Tcl_StringObjCmd(dummy, interp, objc, objv) if ((length2 > 0) && ((*ustring1 == *ustring2) || (nocase && (Tcl_UniCharToLower(*ustring1) == u2lc[index/2]))) && + /* restrict max compare length */ + ((end - ustring1) >= length2) && ((length2 == 1) || strCmpFn(ustring2, ustring1, (unsigned long) length2) == 0)) { if (p != ustring1) { |