Fix possible crash in serd_writer_end_anon() when writing invalid lists

git-svn-id: http://svn.drobilla.net/serd/trunk@409 490d8e77-9747-427b-9fa3-0b8f29cee8a0

NEWS

@@ -1,3 +1,9 @@
+serd (0.18.3) unstable;
+
+  * Fix possible crash in serd_writer_end_anon() when writing invalid lists
+
+ -- David Robillard <d@drobilla.net>  Mon, 21 Jan 2013 22:03:07 -0500
+
 serd (0.18.2) stable;
 
   * Fix crash when serd_node_new_decimal is called with infinity or NaN

README

@@ -1,5 +1,5 @@
 Serd
-----
+====
 
 Serd is a lightweight C library for RDF syntax which supports reading and
 writing Turtle and NTriples.

src/writer.c

@@ -602,12 +602,11 @@ serd_writer_end_anon(SerdWriter*     writer,
 	if (writer->syntax == SERD_NTRIPLES) {
 		return SERD_SUCCESS;
 	}
-	if (serd_stack_is_empty(&writer->anon_stack)) {
+	if (serd_stack_is_empty(&writer->anon_stack) || writer->indent == 0) {
 		w_err(writer, SERD_ERR_UNKNOWN,
 		      "unexpected end of anonymous node\n");
 		return SERD_ERR_UNKNOWN;
 	}
-	assert(writer->indent > 0);
 	--writer->indent;
 	write_sep(writer, SEP_ANON_END);
 	reset_context(writer, true);

wscript

@@ -11,7 +11,7 @@ import waflib.extras.autowaf as autowaf
 # major increment <=> incompatible changes
 # minor increment <=> compatible changes (additions)
 # micro increment <=> no interface changes
-SERD_VERSION       = '0.18.2'
+SERD_VERSION       = '0.18.3'
 SERD_MAJOR_VERSION = '0'
 
 # Mandatory waf variables