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Fix --type-id-style hash for empty internal names.

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libabigail's intern_string class treats the empty string specially. It
is not safe to call the raw method without checking for a empty
pointer. It is safe to convert to std::string.

This commit changes the XML writer to convert interned strings to
std::strings before computing their hashes.

	* src/abg-writer.cc (write_context::get_id_for_type): When
	hashing internal type names, convert to std::string rather
	than using the raw method directly as this will avoid a null
	pointer dereference in the case of an empty string; tabify
	code indentation.

Signed-off-by: Giuliano Procida <gprocida@google.com>
Signed-off-by: Dodji Seketeli <dodji@redhat.com>
This commit is contained in:
Giuliano Procida 2020-07-06 10:21:33 +01:00 committed by Dodji Seketeli
parent 96ce0785fd
commit be0effa6fd
1 changed files with 13 additions and 13 deletions
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2
src/abg-writer.cc
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@ -457,7 +457,7 @@ public:
case HASH_TYPE_ID_STYLE:
{
interned_string pretty = c->get_cached_pretty_representation(true);
size_t hash = hashing::fnv_hash(*pretty.raw());
size_t hash = hashing::fnv_hash(pretty);
while (!m_used_type_id_hashes.insert(hash).second)
++hash;
std::ostringstream os;