1 files changed, 71 insertions, 0 deletions
diff --git a/test-instr.c b/test-instr.c
new file mode 100644
index 00000000..b2caa1fe
--- /dev/null
+++ b/test-instr.c
@@ -0,0 +1,71 @@
+/*
+   american fuzzy lop++ - a trivial program to test the build
+   --------------------------------------------------------
+   Originally written by Michal Zalewski
+   Copyright 2014 Google Inc. All rights reserved.
+   Copyright 2019-2022 AFLplusplus Project. All rights reserved.
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at:
+     https://www.apache.org/licenses/LICENSE-2.0
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#ifdef TEST_SHARED_OBJECT
+  #define main main_exported
+#endif
+
+int main(int argc, char **argv) {
+
+  int   fd = 0;
+  char  buff[8];
+  char *buf = buff;
+
+  // we support command line parameter and stdin
+  if (argc == 2) {
+
+    buf = argv[1];
+    printf("Input %s - ", buf);
+
+  } else {
+
+    if (argc >= 3 && strcmp(argv[1], "-f") == 0) {
+
+      if ((fd = open(argv[2], O_RDONLY)) < 0) {
+
+        fprintf(stderr, "Error: unable to open %s\n", argv[2]);
+        exit(-1);
+
+      }
+
+    }
+
+    if (read(fd, buf, sizeof(buf)) < 1) {
+
+      printf("Hum?\n");
+      return 1;
+
+    }
+
+  }
+
+  // we support three input cases (plus a 4th if stdin is used but there is no
+  // input)
+  if (buf[0] == '0')
+    printf("Looks like a zero to me!\n");
+  else if (buf[0] == '1')
+    printf("Pretty sure that is a one!\n");
+  else
+    printf("Neither one or zero? How quaint!\n");
+
+  return 0;
+
+}
+