Add examples (#145)

* intermediate example commit * Added more state_explore examples (w/ new_symbolic_buffer) * Actually comment out verbosity * rename * Add comment mentioning symbolicate_buffer * Update comments * Fix issue with limited exploration * Clear up wording * Update descriptions * Remove reference to symbolicate_buffer * Clean up state_explore.c header * move .c to src/
2017-04-19 14:12:58 -04:00
parent 648ddf10ab
commit daab8a5824
4 changed files with 107 additions and 36 deletions
@@ -0,0 +1,62 @@
+#include <stdio.h>
+
+/**
+ * Example code for the state state_control.py and introduce_symbolic_bytes.py
+ * examples.
+ *
+ *  See scripts for more information.
+ */
+
+void
+fill_from_stdin(int *value)
+{
+    read(0, value, sizeof *value);
+}
+
+int
+main(int argc, char *argv[])
+{
+    int value;
+
+    /**
+     * If we don't receive any arguments, read value from stdin. If we do 
+     * receive an argument, treat `value` as uninitialized.
+     */
+    if (argc < 2) {
+        fill_from_stdin(&value);
+    }
+
+    if ((value & 0xff) != 0) {
+        if (value >= 0x40) {
+            write(1, "1", 1);
+            if (value == 0x41) {
+                write(1, "a", 1);
+            } else if (value == 0x42) {
+                write(1, "b", 1);
+            } else if (value == 0x43) {
+                write(1, "c", 1);
+            } else if (value == 0x44) {
+                write(1, "d", 1);
+            } else {
+                write(1, "e", 1);
+            }
+        } else {
+            write(1, "2", 1);
+        }
+    } else if ((value & 0xff00) != 0) {
+        if (value > 0x1000) {
+            write(1, "3", 1);
+        } else {
+            write(1, "4", 1);
+        }
+    } else if ((value & 0xff0000) != 0) {
+        if (value > 0xf0000) {
+            write(1, "5", 1);
+        } else {
+            write(1, "6", 1);
+        }
+    }
+    write(1, "\n", 2);
+
+    return 0;
+}