Fix double free of filter read codec when resetting to an unsupported encoding.

svn path=/trunk/libparserutils/; revision=5657

1 files changed, 50 insertions, 0 deletions

diff --git a/test/regression/filter-badenc-segv.c b/test/regression/filter-badenc-segv.c
new file mode 100644
index 0000000..c6c07f6
--- /dev/null
+++ b/test/regression/filter-badenc-segv.c
@@ -0,0 +1,50 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <parserutils/parserutils.h>
+
+#include "input/filter.h"
+
+#include "testutils.h"
+
+static void *myrealloc(void *ptr, size_t len, void *pw)
+{
+	UNUSED(pw);
+
+	return realloc(ptr, len);
+}
+
+int main(int argc, char **argv)
+{
+	parserutils_filter *input;
+	parserutils_filter_optparams params;
+
+	if (argc != 2) {
+		printf("Usage: %s <filename>\n", argv[0]);
+		return 1;
+	}
+
+	assert(parserutils_initialise(argv[1], myrealloc, NULL) == 
+			PARSERUTILS_OK);
+
+	assert(parserutils_filter_create("UTF-8", myrealloc, NULL, &input) ==
+			PARSERUTILS_OK);
+
+	params.encoding.name = "GBK";
+	assert(parserutils_filter_setopt(input, 
+			PARSERUTILS_FILTER_SET_ENCODING, &params) == 
+			PARSERUTILS_BADENCODING);
+
+	params.encoding.name = "GBK";
+	assert(parserutils_filter_setopt(input, 
+			PARSERUTILS_FILTER_SET_ENCODING, &params) == 
+			PARSERUTILS_BADENCODING);
+
+	parserutils_filter_destroy(input);
+
+	assert(parserutils_finalise(myrealloc, NULL) == PARSERUTILS_OK);
+
+	printf("PASS\n");
+
+	return 0;
+}