diff options
Diffstat (limited to 'generic')
| -rw-r--r-- | generic/tclBinary.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/generic/tclBinary.c b/generic/tclBinary.c index f321b28..8c95305 100644 --- a/generic/tclBinary.c +++ b/generic/tclBinary.c @@ -273,10 +273,15 @@ Tcl_SetByteArrayObj( TclFreeIntRep(objPtr); Tcl_InvalidateStringRep(objPtr); + if (length < 0) { + length = 0; + } byteArrayPtr = (ByteArray *) ckalloc(BYTEARRAY_SIZE(length)); byteArrayPtr->used = length; byteArrayPtr->allocated = length; - memcpy(byteArrayPtr->bytes, bytes, (size_t) length); + if (length && bytes) { + memcpy(byteArrayPtr->bytes, bytes, (size_t) length); + } objPtr->typePtr = &tclByteArrayType; SET_BYTEARRAY(objPtr, byteArrayPtr); |