test/bad_chars: ensure our tests could fail

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Ralph Boehme <slow@samba.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/testdata/source-chars-bad.c b/testdata/source-chars-bad.c
new file mode 100644
index 00000000000..9b435722e13
--- /dev/null
+++ b/testdata/source-chars-bad.c
@@ -0,0 +1,23 @@
+/*
+ * "Trojan Source"  CVE-2021-42574 test.
+ *
+ * Based on an example from https://lwn.net/Articles/874951/
+ */
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+	int isAdmin = 0;
+
+#if 0
+	/* This is what is really there. */
+
+	/*«RLO» } «LRI»if (isAdmin)«PDI» «LRI» begin admins only */
+	puts("hello admin");
+	/* end admin only «RLO» { «LRI»*/
+#else
+	/*‮ } ⁦if (isAdmin)⁩ ⁦ begin admins only */
+	puts("hello admin");
+	/* end admin only ‮ { ⁦*/
+#endif
+}