Add tdemarkdown part - embeddable lightweight markdown viewing component.

TDEMarkdown is based on the md4c library and using TDEHTML for rendering
its output. For enhanced safety, on HTML widget is turned off everything
we don't need for viewing. It integrates nicely into Konqueror and
supports both Commonmark and GitHub markdown syntaxes.

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

Prepare to merge tdemarkdown into tdelibs.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

1 files changed, 35 insertions, 0 deletions

diff --git a/tdemarkdown/md4c/test/fuzzers/fuzz-mdhtml.c b/tdemarkdown/md4c/test/fuzzers/fuzz-mdhtml.c
new file mode 100644
index 000000000..2d645d237
--- /dev/null
+++ b/tdemarkdown/md4c/test/fuzzers/fuzz-mdhtml.c
@@ -0,0 +1,35 @@
+
+#include <stdint.h>
+#include <stdlib.h>
+#include "md4c-html.h"
+
+
+static void
+process_output(const MD_CHAR* text, MD_SIZE size, void* userdata)
+{
+   /* This is a dummy function because we don't need to generate any output
+    * actually. */
+   return;
+}
+
+int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+    unsigned parser_flags, renderer_flags;
+
+    if(size < 2 * sizeof(unsigned)) {
+        /* We interpret the 1st 8 bytes as parser flags and renderer flags. */
+        return 0;
+    }
+
+    parser_flags = *(unsigned*)data;
+    data += sizeof(unsigned); size -= sizeof(unsigned);
+
+    renderer_flags = *(unsigned*)data;
+    data += sizeof(unsigned); size -= sizeof(unsigned);
+
+    /* Allocate enough space */
+    md_html(data, size, process_output, NULL, parser_flags, renderer_flags);
+
+    return 0;
+}