Initial commit

.gitignore

@@ -0,0 +1,25 @@
+# Visual Studio 2015 cache/options directory
+.vs/
+# Visual Studio Code
+.vscode/
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+
+# Cmake Build files
+CMakeFiles/*
+CMakeCache.txt
+cmake_install.cmake
+Makefile
+build/*
+
+# Binaries
+libnekolib.a
+libnekolib.so

CMakeLists.txt

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+
+cmake_minimum_required(VERSION 2.6)
+project(nekohack)
+
+set(CMAKE_CXX_STANDARD 17)
+file(GLOB_RECURSE NEKOHACK_SOURCES "${CMAKE_CURRENT_SOURCE_DIR}/src/*.cpp")
+add_library(nekohack STATIC ${NEKOHACK_SOURCES})
+target_include_directories(nekohack PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/include/break")
+target_include_directories(nekohack PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include/")

include/break/asmhook.hpp

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+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace neko::hack {
+
+// Overwrites calls in a function to the destination
+/*class Overwrite {
+public:
+    Overwrite(){}
+    Overwrite(void* func, std::size_t length, void* dest) {
+        this->Hook(func, length, dest);
+    }
+    Hook(void* func, std::size_t length, void* dest) {
+
+    }
+private:
+    void* overwritten = nullptr;
+};
+
+class ASMHook {
+public:
+    Hook();
+    ~Hook();
+    enum Type {kOverwrite
+    AddJump
+};*/
+
+}

include/break/memory.hpp

@@ -0,0 +1,43 @@
+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <cstdint>
+
+namespace neko::hack::mem {
+
+template <typename Type, class Ptr>
+inline auto Offset(Ptr src, std::ptrdiff_t offset) {
+    return reinterpret_cast<Type*>(reinterpret_cast<uint64_t>(src) + offset);
+}
+
+/*class Patch {
+public:
+    Patch();
+    void Add(){
+
+    }
+    void Remove();
+    static void Write(void* where, std::byte* with, std::size_t len);
+private:
+    void* original_location = nullptr;
+    std::vector<std::byte> original_data;
+};*/
+
+
+}

include/break/sharedlibrary.hpp

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+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#if defined(__linux__)
+#include <link.h>  // link maps
+using LMap = link_map*;
+using SymStr = const char*;
+#elif defined(_WIN32)
+#include <windows.h>  // loadlibrary
+using LMap = HMODULE;
+using SymStr = LPCSTR;
+#endif
+
+#include <string_view>
+#include <filesystem>
+namespace fs = std::filesystem;
+
+namespace neko::hack {
+
+class SharedLibrary {
+public:
+    SharedLibrary();
+    SharedLibrary(std::string_view _name);
+    void Init() { this->Init(this->name); }
+    void ForceInit() { this->ForceInit(this->name); }
+    void Init(std::string_view _name);
+    void ForceInit(std::string_view _name);
+    std::string_view GetName();
+    void* begin();
+    void* end();
+    std::size_t size();
+    void Clear();
+    LMap GetLMap();
+    template<typename T>
+    T GetSym(SymStr s) { reinterpret_cast<T>(this->GetSymInternal(s)); }
+private:
+    void* GetSymInternal(SymStr);
+    bool init_flag = false;
+    std::string_view name;
+    fs::path path;
+    void* _begin;
+    void* _end;
+    std::size_t _size;
+    LMap lmap;
+};
+
+}

include/break/signature.hpp

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+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <string_view>
+
+namespace neko::hack::sig {
+
+void* SearchN(void* where, std::size_t len, std::string_view pat);
+
+}

include/break/vfthook.hpp

@@ -0,0 +1,59 @@
+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <cstdint>
+#include <memory>
+
+namespace neko::hack {
+
+// Virtual function table
+using VF = void*;
+using VFT = VF[];
+
+// Virtual Function Table Hook
+class VFTHook {
+public:
+    VFTHook();
+    ~VFTHook();
+    template<class TPtr>
+    void Init(TPtr instance) {
+        this->IntInit(reinterpret_cast<void*>(instance));
+    }
+    template<class TPtr>
+    void Hook(TPtr func, std::size_t idx) {
+        this->IntHook(reinterpret_cast<VF>(func), idx);
+    }
+    void Finish();
+    void Undo();
+    template <class T = void*>
+    inline T GetOriginal(std::size_t idx) const {
+        return reinterpret_cast<T>(this->original_data[idx]);
+    }
+    bool IsHooked();
+    std::size_t GetSize(){ return this->size; }
+private:
+    void IntInit(void* instance);
+    void IntHook(VF func_ptr, std::size_t);
+    void*** vtable = nullptr;
+    void** original_data = nullptr;
+    std::unique_ptr<void*[]> replacement;
+    std::size_t size;
+};
+
+}

license.md

@@ -0,0 +1,675 @@
+### GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
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+
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+form of a separately written license, or stated as exceptions; the
+above requirements apply either way.
+
+#### 8. Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+#### 9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run
+a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+#### 10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+#### 11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+#### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+#### 13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+#### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in
+detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU General Public
+License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that numbered version or
+of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of the GNU General Public
+License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU General Public License can be used, that proxy's public
+statement of acceptance of a version permanently authorizes you to
+choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+#### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+#### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+#### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+        <program>  Copyright (C) <year>  <name of author>
+        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+The hypothetical commands \`show w' and \`show c' should show the
+appropriate parts of the General Public License. Of course, your
+program's commands might be different; for a GUI interface, you would
+use an "about box".
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
+applications with the library. If this is what you want to do, use the
+GNU Lesser General Public License instead of this License. But first,
+please read <https://www.gnu.org/licenses/why-not-lgpl.html>.

src/asmhook.hpp

@@ -0,0 +1,26 @@
+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <r_asm.h>
+
+namespace neko::hack {
+
+RAsmOp* asm = r_asm_op_new(void);
+
+}

src/encrypt.cpp

@@ -0,0 +1,25 @@
+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/*namespace neko::hack::crypt {
+
+std::string<unsigned char> Encrypt(std::string);
+
+}
+*/

src/memory.cpp

@@ -0,0 +1,29 @@
+
+
+/*void Patch::Remove() {
+    if (this->original_location) {
+        Patch::Write(this->original_location, this->original_data.data(), this->original_data.size());
+        this->original_location = nullptr;
+    }
+    original_data.clear();
+}
+void Patch::Write(void* where, void* with, std::size_t len) {
+    // Get align info
+    int page_size = sysconf(_SC_PAGE_SIZE);
+    if (page_size == -1)
+        throw std::runtime_error("Patch::Write: couldnt retrieve page size");
+    // Align
+    void* align = where - page_size;
+    if (std::align(page_size, page_size, align, page_size * 4) == nullptr)
+        throw std::logic_error("Patch::Write: couldnt properly align");
+    // Align size
+    std::size_t page_len = page_size;
+    if (where + len > align + page_size)
+        page_len += page_size;
+    // Unprotect and write
+    if (mprotect(align, page_len, PROT_READ | PROT_WRITE | PROT_EXEC) != 0)
+        throw std::logic_error("Patch::Write: Unable to unprotect memory!")
+    memcpy(addr, , size);
+    if (mprotect(align, page_len, PROT_EXEC) != 0)
+        throw std::logic_error("Patch::Write: Unable to reprotect memory!")
+}*/

src/sharedlibrary.cpp

@@ -0,0 +1,109 @@
+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <cstring>
+
+#include "memory.hpp"
+
+#include "sharedlibrary.hpp"
+
+namespace neko::hack {
+
+struct Passthrough {
+    std::string name;
+    fs::path path;
+    void* begin;
+    std::size_t size;
+};
+
+SharedLibrary::SharedLibrary(){}
+SharedLibrary::SharedLibrary(std::string_view _name) : name(_name) {
+    try {
+        this->Init(_name);
+    } catch(...){}
+}
+
+void SharedLibrary::Init(std::string_view _name){
+    if (!init_flag) {
+        this->name = _name;
+        if (this->name.empty())
+            throw std::logic_error("SharedLibrary: no name avaiable.");
+        Passthrough pass;
+        pass.name = '/' + std::string(_name) + '.';
+        if (!dl_iterate_phdr([](struct dl_phdr_info* info, size_t, void* _pass) {
+            auto* pass = reinterpret_cast<Passthrough*>(_pass);
+            if (!strstr(info->dlpi_name, pass->name.c_str()))
+                return 0;
+
+            pass->path = info->dlpi_name;
+            pass->begin = reinterpret_cast<void*>(info->dlpi_addr + info->dlpi_phdr[0].p_vaddr);
+            pass->size = info->dlpi_phdr[0].p_memsz;
+            return 1;
+        }, reinterpret_cast<void*>(&pass)))
+            throw std::runtime_error("SharedLibrary: Unable to find loaded library");
+
+        this->lmap = static_cast<LMap>(
+                dlopen(path.c_str(), RTLD_NOLOAD | RTLD_NOW | RTLD_LOCAL));
+        if (const char* error = dlerror())
+            throw std::runtime_error("SharedLibrary recieved dlerror: + error");
+
+        this->path = pass.path;
+        this->_begin = pass.begin;
+        this->_end = mem::Offset<void*>(pass.begin, pass.size);
+        this->_size = pass.size;
+        this->init_flag = true;
+    }
+}
+void SharedLibrary::ForceInit(std::string_view _name) {
+    while(!this->init_flag) {
+        this->Init();
+    }
+}
+std::string_view SharedLibrary::GetName() {
+    return name;
+}
+void* SharedLibrary::begin() {
+    this->Init();
+    return this->_begin;
+}
+void* SharedLibrary::end() {
+    this->Init();
+    return this->_end;
+}
+std::size_t SharedLibrary::size() {
+    this->Init();
+    return this->_size;
+}
+LMap SharedLibrary::GetLMap() {
+    this->Init();
+    return this->lmap;
+}
+void SharedLibrary::Clear(){
+    this->init_flag = false;
+    this->name = std::string_view();
+}
+void* SharedLibrary::GetSymInternal(SymStr name) {
+    #if defined(__linux__)
+        return dlsym(this->GetLMap(), name);
+    #elif defined(_WIN32)
+        return GetProcAddress(this->GetLMap(), name);
+    #endif
+}
+
+}

src/signature.cpp

@@ -0,0 +1,81 @@
+
+/*
+ * Nekohack: Break things in cool ways!
+ * Copyright (C) 2018 Rebekah Rowe
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <cassert>
+#include <algorithm>
+#include <vector>
+#include <string>
+
+#include "signature.hpp"
+
+class Pattern {
+public:
+    Pattern(std::string_view input) {
+        while (!input.empty()) {
+            // Discard whitespace
+            std::size_t non_white_start = input.find_first_not_of(' ');
+            if (non_white_start == std::string_view::npos) break;
+            input.remove_prefix(non_white_start);
+
+            // act on delim
+            // Wildcard
+            if (input.front() == '?') {
+                this->wilds.push_back(true);
+                std::size_t next = input.find_first_not_of('?');
+                if (next == std::string_view::npos)
+                    break;
+                input.remove_prefix(next);
+            } else {
+                this->wilds.push_back(false);
+                if (input.size() < 2)
+                    break;
+
+                std::string hex = {input[0], input[1]};
+                uint8_t nibble = std::stoul(hex, nullptr, 16);
+                this->pat.push_back(*reinterpret_cast<std::byte*>(nibble));
+                input.remove_prefix(2);
+            }
+        }
+    }
+    inline std::byte Get(std::size_t i) {
+        assert(!this->IsWild(i));
+        return pat[i];
+    }
+    inline bool IsWild(std::size_t i) {
+        auto find = std::find(wilds.begin(), wilds.end(), i);
+        return find != wilds.end();
+    }
+    inline std::size_t size(){
+        return this->pat.size();
+    }
+private:
+std::vector<std::byte> pat;
+std::vector<bool> wilds;
+};
+
+void* SearchN(void* _begin, void* _end, std::string_view _pat){
+    return nullptr;
+    /*Pattern pat(_pat);
+    std::byte* begin = reinterpret_cast<std::byte*>(_begin);
+    std::byte* end = reinterpret_cast<std::byte*>(_end);
+    auto find = std::find_if(begin, end, [&](std::byte* s) {
+        // Pattern equality
+        for (int )
+    });*/
+}

src/vfthook.cpp

@@ -0,0 +1,50 @@
+
+#include <cstring>
+
+#include "vfthook.hpp"
+
+namespace neko::hack {
+
+VFTHook::VFTHook(){}
+VFTHook::~VFTHook() {
+    try {
+        this->Undo();
+    }catch(...){}
+}
+
+void VFTHook::IntInit(void* instance) {
+    try {
+        this->Undo();
+    }catch(...){}
+
+    this->vtable = reinterpret_cast<void***>(instance);
+    this->original_data = *this->vtable;
+
+    this->size = 0;
+    while (this->original_data[this->size]) this->size++;
+
+    this->replacement = std::make_unique<VFT>(this->size);
+    memcpy(this->replacement.get(), this->original_data, sizeof(VF) * this->size);
+};
+void VFTHook::Finish() {
+    if (this->IsHooked())
+        throw std::logic_error("VTFHook: Cant finish, hook in place");
+    *this->vtable = this->replacement.get();
+}
+void VFTHook::Undo() {
+    if (!this->IsHooked())
+        throw std::logic_error("VTFHook: Cant undo a hook that isnt there");
+}
+bool VFTHook::IsHooked() {
+    if (!this->vtable || !this->replacement)
+        return false;
+    return *this->vtable == this->replacement.get();
+}
+
+void VFTHook::IntHook(VF func, std::size_t idx) {
+    //if (this->original[idx] != this->replacement[idx])
+        //throw std::logic_error("Already Hooked");
+    this->replacement[idx] = func;
+}
+
+}