Commit genhex program

This is a utility program from my shellcoding repository.  It uses the
dissassembly output from objdump to auto-format a payload from an
assembled object file.

Signed-off-by: Malfurious <m@lfurio.us>

1 files changed, 33 insertions, 0 deletions

diff --git a/genhex.cpp b/genhex.cpp
new file mode 100644
index 0000000..a37f91e
--- /dev/null
+++ b/genhex.cpp
@@ -0,0 +1,33 @@
+#include <iostream>
+#include <string>
+
+/*
+ * Read in all of stdin (should be piped from objdump), look for bytecode hex,
+ * and print this code, escaped in a C-string literal, to stdout.
+ *
+ * EG output: "\x01\x02\x03\x04"
+ */
+
+int main()
+{
+    std::string tmp;
+    unsigned int hex;
+
+    std::cout << "\"";
+
+    while (true)
+    {
+        std::cin >> tmp;
+
+        if (std::cin.eof())
+            break;
+
+        if (tmp.size() == 2 &&
+            tmp.find(":") == std::string::npos &&
+            sscanf(tmp.c_str(), "%x", &hex) > 0)
+            std::cout << "\\x" << tmp;
+    }
+
+    std::cout << "\"\n";
+    return 0;
+}