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defineclass.cc (handleField): Throw exception if field name is duplicated.

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* defineclass.cc (handleField): Throw exception if field name is
	duplicated.
	(handleMethod): Throw exception for duplicate method.

From-SVN: r69928
This commit is contained in:
Tom Tromey 2003-07-29 17:12:54 +00:00 committed by Tom Tromey
parent b33ab7a9b0
commit a47c20a77a
2 changed files with 33 additions and 10 deletions
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6
libjava/ChangeLog
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@ -1,3 +1,9 @@
2003-07-29 Tom Tromey <tromey@redhat.com>
* defineclass.cc (handleField): Throw exception if field name is
duplicated.
(handleMethod): Throw exception for duplicate method.
2003-07-29 Tom Tromey <tromey@redhat.com>
* gnu/gcj/convert/natIconv.cc (write): Handle case where

37
libjava/defineclass.cc
View File

@ -75,7 +75,7 @@ struct _Jv_ClassReader {
// allways on. You always want this as far as I can see, but it also
// controls weither identifiers and type descriptors/signatures are
// verified as legal. This could be somewhat more expensive since it
// will call Characher.isJavaIdentifier{Start,Part} for each character
// will call Character.isJavaIdentifier{Start,Part} for each character
// in any identifier (field name or method name) it comes by. Thus,
// it might be useful to turn off this verification for classes that
// come from a trusted source. However, for GCJ, trusted classes are
@ -403,15 +403,15 @@ void _Jv_ClassReader::read_fields ()
int name_index = read2u ();
int descriptor_index = read2u ();
int attributes_count = read2u ();
check_tag (name_index, JV_CONSTANT_Utf8);
prepare_pool_entry (name_index, JV_CONSTANT_Utf8);
check_tag (descriptor_index, JV_CONSTANT_Utf8);
prepare_pool_entry (descriptor_index, JV_CONSTANT_Utf8);
handleField (i, access_flags, name_index, descriptor_index);
for (int j = 0; j < attributes_count; j++)
{
read_one_field_attribute (i);
@ -1071,14 +1071,25 @@ void _Jv_ClassReader::handleField (int field_no,
field->nameIndex = name;
#endif
if (verify)
verify_identifier (field_name);
// ignore flags we don't know about.
// Ignore flags we don't know about.
field->flags = flags & Modifier::ALL_FLAGS;
_Jv_Utf8Const* sig = pool_data[desc].utf8;
if (verify)
{
verify_identifier (field_name);
for (int i = 0; i < field_no; ++i)
{
if (_Jv_equalUtf8Consts (field_name, def->fields[i].name)
&& _Jv_equalUtf8Consts (sig,
// We know the other fields are
// unresolved.
(_Jv_Utf8Const *) def->fields[i].type))
throw_class_format_error ("duplicate field name");
}
if (field->flags & (Modifier::SYNCHRONIZED
| Modifier::NATIVE
| Modifier::INTERFACE
@ -1091,8 +1102,6 @@ void _Jv_ClassReader::handleField (int field_no,
throw_class_format_error ("erroneous field access flags");
}
_Jv_Utf8Const* sig = pool_data[desc].utf8;
if (verify)
_Jv_VerifyFieldSignature (sig);
@ -1233,6 +1242,14 @@ void _Jv_ClassReader::handleMethod
_Jv_VerifyMethodSignature (method->signature);
for (int i = 0; i < mth_index; ++i)
{
if (_Jv_equalUtf8Consts (method->name, def->methods[i].name)
&& _Jv_equalUtf8Consts (method->signature,
def->methods[i].signature))
throw_class_format_error ("duplicate method");
}
if (method->accflags & (Modifier::VOLATILE
| Modifier::TRANSIENT
| Modifier::INTERFACE))