SubFolder should take a reference (not a pointer).

[ldid.git] / ldid.cpp

diff --git a/ldid.cpp b/ldid.cpp
index 922515826a25fe974e4ae8a200a50b7d7a73f07e..eb535fd82f808ce2a979469e15bf83a36f97673a 100644 (file)
--- a/ldid.cpp
+++ b/ldid.cpp
@@ -23,49 +23,62 @@
 #include <cstdlib>
 #include <cstring>
 #include <fstream>
 #include <cstdlib>
 #include <cstring>
 #include <fstream>

-#include <map>
+#include <iostream>
+#include <memory>
+#include <set>

 #include <sstream>
 #include <string>
 #include <vector>
 
 #include <sstream>
 #include <string>
 #include <vector>
 

-#include <dlfcn.h>
+#include <dirent.h>

 #include <errno.h>
 #include <fcntl.h>
 #include <errno.h>
 #include <fcntl.h>

+#include <regex.h>

 #include <stdbool.h>
 #include <stdint.h>
 #include <stdbool.h>
 #include <stdint.h>

+#include <unistd.h>

 
 #include <sys/mman.h>
 #include <sys/stat.h>
 
 #include <sys/mman.h>
 #include <sys/stat.h>

+#include <sys/types.h>

 
 

+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/pkcs7.h>
+#include <openssl/pkcs12.h>

 #include <openssl/sha.h>
 
 #include <plist/plist.h>
 
 #include <openssl/sha.h>
 
 #include <plist/plist.h>
 

+#include "ldid.hpp"
+

 #define _assert___(line) \
     #line
 #define _assert__(line) \
     _assert___(line)
 #define _assert___(line) \
     #line
 #define _assert__(line) \
     _assert___(line)

-#define _assert_(e) \
-    throw __FILE__ "(" _assert__(__LINE__) "): _assert(" e ")"

 
 

-#define _assert(expr) \
+#define _assert_(expr, format, ...) \

     do if (!(expr)) { \
     do if (!(expr)) { \

-        fprintf(stderr, "%s(%u): _assert(%s); errno=%u\n", __FILE__, __LINE__, #expr, errno); \
-        _assert_(#expr); \
+        fprintf(stderr, "%s(%u): _assert(): " format "\n", __FILE__, __LINE__, ## __VA_ARGS__); \
+        throw __FILE__ "(" _assert__(__LINE__) "): _assert(" #expr ")"; \

     } while (false)
 
     } while (false)
 

-#define _syscall(expr) ({ \
-    __typeof__(expr) _value; \
-    do if ((long) (_value = (expr)) != -1) \
-        break; \
-    else switch (errno) { \
-        case EINTR: \
-            continue; \
-        default: \
-            _assert(false); \
-    } while (true); \
-    _value; \
-})
+#define _assert(expr) \
+    _assert_(expr, "%s", #expr)
+
+#define _syscall(expr, ...) [&] { for (;;) { \
+    auto _value(expr); \
+    if ((long) _value != -1) \
+        return _value; \
+    int error(errno); \
+    if (error == EINTR) \
+        continue; \
+    /* XXX: EINTR is included in this list to fix g++ */ \
+    for (auto success : (long[]) {EINTR, __VA_ARGS__}) \
+        if (error == success) \
+            return (decltype(expr)) -success; \
+    _assert_(false, "errno=%u", error); \
+} }()

 
 #define _trace() \
     fprintf(stderr, "_trace(%s:%u): %s\n", __FILE__, __LINE__, __FUNCTION__)
 
 #define _trace() \
     fprintf(stderr, "_trace(%s:%u): %s\n", __FILE__, __LINE__, __FUNCTION__)


@@ -88,6 +101,40 @@ struct Iterator_ {
                 for (bool _suck(true); _suck; _suck = false) \
                     for (const __typeof__(*_item) &item = *_item; _suck; _suck = false)
 
                 for (bool _suck(true); _suck; _suck = false) \
                     for (const __typeof__(*_item) &item = *_item; _suck; _suck = false)
 

+class _Scope {
+};
+
+template <typename Function_>
+class Scope :
+    public _Scope
+{
+  private:
+    Function_ function_;
+
+  public:
+    Scope(const Function_ &function) :
+        function_(function)
+    {
+    }
+
+    ~Scope() {
+        function_();
+    }
+};
+
+template <typename Function_>
+Scope<Function_> _scope(const Function_ &function) {
+    return Scope<Function_>(function);
+}
+
+#define _scope__(counter, function) \
+    __attribute__((__unused__)) \
+    const _Scope &_scope ## counter(_scope([&]function))
+#define _scope_(counter, function) \
+    _scope__(counter, function)
+#define _scope(function) \
+    _scope_(__COUNTER__, function)
+

 struct fat_header {
     uint32_t magic;
     uint32_t nfat_arch;
 struct fat_header {
     uint32_t magic;
     uint32_t nfat_arch;


@@ -372,13 +419,16 @@ Type_ Align(Type_ value, size_t align) {
     return value;
 }
 
     return value;
 }
 

-uint16_t Swap_(uint16_t value) {
+static const uint8_t PageShift_(0x0c);
+static const uint32_t PageSize_(1 << PageShift_);
+
+static inline uint16_t Swap_(uint16_t value) {

     return
         ((value >>  8) & 0x00ff) |
         ((value <<  8) & 0xff00);
 }
 
     return
         ((value >>  8) & 0x00ff) |
         ((value <<  8) & 0xff00);
 }
 

-uint32_t Swap_(uint32_t value) {
+static inline uint32_t Swap_(uint32_t value) {

     value = ((value >>  8) & 0x00ff00ff) |
             ((value <<  8) & 0xff00ff00);
     value = ((value >> 16) & 0x0000ffff) |
     value = ((value >>  8) & 0x00ff00ff) |
             ((value <<  8) & 0xff00ff00);
     value = ((value >> 16) & 0x0000ffff) |


@@ -386,48 +436,48 @@ uint32_t Swap_(uint32_t value) {
     return value;
 }
 
     return value;
 }
 

-uint64_t Swap_(uint64_t value) {
+static inline uint64_t Swap_(uint64_t value) {

     value = (value & 0x00000000ffffffff) << 32 | (value & 0xffffffff00000000) >> 32;
     value = (value & 0x0000ffff0000ffff) << 16 | (value & 0xffff0000ffff0000) >> 16;
     value = (value & 0x00ff00ff00ff00ff) << 8  | (value & 0xff00ff00ff00ff00) >> 8;
     return value;
 }
 
     value = (value & 0x00000000ffffffff) << 32 | (value & 0xffffffff00000000) >> 32;
     value = (value & 0x0000ffff0000ffff) << 16 | (value & 0xffff0000ffff0000) >> 16;
     value = (value & 0x00ff00ff00ff00ff) << 8  | (value & 0xff00ff00ff00ff00) >> 8;
     return value;
 }
 

-int16_t Swap_(int16_t value) {
+static inline int16_t Swap_(int16_t value) {

     return Swap_(static_cast<uint16_t>(value));
 }
 
     return Swap_(static_cast<uint16_t>(value));
 }
 

-int32_t Swap_(int32_t value) {
+static inline int32_t Swap_(int32_t value) {

     return Swap_(static_cast<uint32_t>(value));
 }
 
     return Swap_(static_cast<uint32_t>(value));
 }
 

-int64_t Swap_(int64_t value) {
+static inline int64_t Swap_(int64_t value) {

     return Swap_(static_cast<uint64_t>(value));
 }
 
     return Swap_(static_cast<uint64_t>(value));
 }
 

-bool little_(true);
+static bool little_(true);

 
 

-uint16_t Swap(uint16_t value) {
+static inline uint16_t Swap(uint16_t value) {

     return little_ ? Swap_(value) : value;
 }
 
     return little_ ? Swap_(value) : value;
 }
 

-uint32_t Swap(uint32_t value) {
+static inline uint32_t Swap(uint32_t value) {

     return little_ ? Swap_(value) : value;
 }
 
     return little_ ? Swap_(value) : value;
 }
 

-uint64_t Swap(uint64_t value) {
+static inline uint64_t Swap(uint64_t value) {

     return little_ ? Swap_(value) : value;
 }
 
     return little_ ? Swap_(value) : value;
 }
 

-int16_t Swap(int16_t value) {
+static inline int16_t Swap(int16_t value) {

     return Swap(static_cast<uint16_t>(value));
 }
 
     return Swap(static_cast<uint16_t>(value));
 }
 

-int32_t Swap(int32_t value) {
+static inline int32_t Swap(int32_t value) {

     return Swap(static_cast<uint32_t>(value));
 }
 
     return Swap(static_cast<uint32_t>(value));
 }
 

-int64_t Swap(int64_t value) {
+static inline int64_t Swap(int64_t value) {

     return Swap(static_cast<uint64_t>(value));
 }
 
     return Swap(static_cast<uint64_t>(value));
 }
 


@@ -792,7 +842,7 @@ struct CodeDirectory {
 
 extern "C" uint32_t hash(uint8_t *k, uint32_t length, uint32_t initval);
 
 
 extern "C" uint32_t hash(uint8_t *k, uint32_t length, uint32_t initval);
 

-void sha1(uint8_t *hash, const void *data, size_t size) {
+static void sha1(uint8_t *hash, const void *data, size_t size) {

     SHA1(static_cast<const uint8_t *>(data), size, hash);
 }
 
     SHA1(static_cast<const uint8_t *>(data), size, hash);
 }
 


@@ -802,16 +852,14 @@ struct CodesignAllocation {
     uint32_t size_;
     uint32_t limit_;
     uint32_t alloc_;
     uint32_t size_;
     uint32_t limit_;
     uint32_t alloc_;

-    uint32_t special_;

     uint32_t align_;
 
     uint32_t align_;
 

-    CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t special, size_t align) :
+    CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t align) :

         mach_header_(mach_header),
         offset_(offset),
         size_(size),
         limit_(limit),
         alloc_(alloc),
         mach_header_(mach_header),
         offset_(offset),
         size_(size),
         limit_(limit),
         alloc_(alloc),

-        special_(special),

         align_(align)
     {
     }
         align_(align)
     {
     }


@@ -834,7 +882,7 @@ class File {
 
     void open(const char *path, int flags) {
         _assert(file_ == -1);
 
     void open(const char *path, int flags) {
         _assert(file_ == -1);

-        _syscall(file_ = ::open(path, flags));
+        file_ = _syscall(::open(path, flags));

     }
 
     int file() const {
     }
 
     int file() const {


@@ -863,13 +911,13 @@ class Map {
     {
     }
 
     {
     }
 

-    Map(const char *path, int oflag, int pflag, int mflag) :
+    Map(const std::string &path, int oflag, int pflag, int mflag) :

         Map()
     {
         open(path, oflag, pflag, mflag);
     }
 
         Map()
     {
         open(path, oflag, pflag, mflag);
     }
 

-    Map(const char *path, bool edit) :
+    Map(const std::string &path, bool edit) :

         Map()
     {
         open(path, edit);
         Map()
     {
         open(path, edit);


@@ -879,20 +927,24 @@ class Map {
         clear();
     }
 
         clear();
     }
 

-    void open(const char *path, int oflag, int pflag, int mflag) {
+    bool empty() const {
+        return data_ == NULL;
+    }
+
+    void open(const std::string &path, int oflag, int pflag, int mflag) {

         clear();
 
         clear();
 

-        file_.open(path, oflag);
+        file_.open(path.c_str(), oflag);

         int file(file_.file());
 
         struct stat stat;
         _syscall(fstat(file, &stat));
         size_ = stat.st_size;
 
         int file(file_.file());
 
         struct stat stat;
         _syscall(fstat(file, &stat));
         size_ = stat.st_size;
 

-        _syscall(data_ = mmap(NULL, size_, pflag, mflag, file, 0));
+        data_ = _syscall(mmap(NULL, size_, pflag, mflag, file, 0));

     }
 
     }
 

-    void open(const char *path, bool edit) {
+    void open(const std::string &path, bool edit) {

         if (edit)
             open(path, O_RDWR, PROT_READ | PROT_WRITE, MAP_SHARED);
         else
         if (edit)
             open(path, O_RDWR, PROT_READ | PROT_WRITE, MAP_SHARED);
         else


@@ -912,11 +964,10 @@ class Map {
     }
 };
 
     }
 };
 

-void resign(void *idata, size_t isize, std::streambuf &output, const char *name, const std::string &entitlements) {
-    FatHeader source(idata, isize);
+namespace ldid {

 
 

-    uint8_t pageshift(0x0c);
-    uint32_t pagesize(1 << pageshift);
+static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor<size_t (size_t)> &allocate, const Functor<size_t (std::streambuf &output, size_t, const std::string &, const char *)> &save) {
+    FatHeader source(const_cast<void *>(idata), isize);

 
     size_t offset(0);
     if (source.IsFat())
 
     size_t offset(0);
     if (source.IsFat())


@@ -951,32 +1002,7 @@ void resign(void *idata, size_t isize, std::streambuf &output, const char *name,
             size = end;
         }
 
             size = end;
         }
 

-        size_t alloc(0);
-        uint32_t special(0);
-
-        if (name != NULL) {
-            alloc += sizeof(struct SuperBlob);
-
-            special = std::max(special, CSSLOT_REQUIREMENTS);
-            alloc += sizeof(struct BlobIndex);
-            alloc += 0xc;
-
-            if (entitlements.size() != 0) {
-                special = std::max(special, CSSLOT_ENTITLEMENTS);
-                alloc += sizeof(struct BlobIndex);
-                alloc += sizeof(struct Blob);
-                alloc += entitlements.size();
-            }
-
-            special = std::max(special, CSSLOT_CODEDIRECTORY);
-            alloc += sizeof(struct BlobIndex);
-            alloc += sizeof(struct Blob);
-            alloc += sizeof(struct CodeDirectory);
-            alloc += strlen(name) + 1;
-
-            uint32_t normal((size + pagesize - 1) / pagesize);
-            alloc = Align(alloc + (special + normal) * SHA_DIGEST_LENGTH, 16);
-        }
+        size_t alloc(allocate(size));

 
         auto *fat_arch(mach_header.GetFatArch());
         uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));
 
         auto *fat_arch(mach_header.GetFatArch());
         uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));


@@ -986,9 +1012,9 @@ void resign(void *idata, size_t isize, std::streambuf &output, const char *name,
         if (alloc != 0)
             limit = Align(limit, 0x10);
 
         if (alloc != 0)
             limit = Align(limit, 0x10);
 

-        allocations.push_back(CodesignAllocation(mach_header, offset, size, limit, alloc, special, align));
+        allocations.push_back(CodesignAllocation(mach_header, offset, size, limit, alloc, align));

         offset += size + alloc;
         offset += size + alloc;

-        offset = Align(offset, 16);
+        offset = Align(offset, 0x10);

     }
 
     size_t position(0);
     }
 
     size_t position(0);


@@ -1025,7 +1051,7 @@ void resign(void *idata, size_t isize, std::streambuf &output, const char *name,
         _foreach (load_command, mach_header.GetLoadCommands()) {
             std::string copy(reinterpret_cast<const char *>(load_command), load_command->cmdsize);
 
         _foreach (load_command, mach_header.GetLoadCommands()) {
             std::string copy(reinterpret_cast<const char *>(load_command), load_command->cmdsize);
 

-            switch (uint32_t cmd = mach_header.Swap(load_command->cmd)) {
+            switch (mach_header.Swap(load_command->cmd)) {

                 case LC_CODE_SIGNATURE:
                     continue;
                 break;
                 case LC_CODE_SIGNATURE:
                     continue;
                 break;


@@ -1036,7 +1062,7 @@ void resign(void *idata, size_t isize, std::streambuf &output, const char *name,
                         break;
                     size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
                     segment_command->filesize = size;
                         break;
                     size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
                     segment_command->filesize = size;

-                    segment_command->vmsize = Align(size, 0x1000);
+                    segment_command->vmsize = Align(size, PageSize_);

                 } break;
 
                 case LC_SEGMENT_64: {
                 } break;
 
                 case LC_SEGMENT_64: {


@@ -1045,14 +1071,14 @@ void resign(void *idata, size_t isize, std::streambuf &output, const char *name,
                         break;
                     size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
                     segment_command->filesize = size;
                         break;
                     size_t size(mach_header.Swap(allocation.limit_ + allocation.alloc_ - mach_header.Swap(segment_command->fileoff)));
                     segment_command->filesize = size;

-                    segment_command->vmsize = Align(size, 0x1000);
+                    segment_command->vmsize = Align(size, PageSize_);

                 } break;
             }
 
             commands.push_back(copy);
         }
 
                 } break;
             }
 
             commands.push_back(copy);
         }
 

-        if (name != NULL) {
+        if (allocation.alloc_ != 0) {

             linkedit_data_command signature;
             signature.cmd = mach_header.Swap(LC_CODE_SIGNATURE);
             signature.cmdsize = mach_header.Swap(uint32_t(sizeof(signature)));
             linkedit_data_command signature;
             signature.cmd = mach_header.Swap(LC_CODE_SIGNATURE);
             signature.cmdsize = mach_header.Swap(uint32_t(sizeof(signature)));


@@ -1107,116 +1133,831 @@ void resign(void *idata, size_t isize, std::streambuf &output, const char *name,
         pad(output, allocation.limit_ - allocation.size_);
         position += allocation.limit_ - allocation.size_;
 
         pad(output, allocation.limit_ - allocation.size_);
         position += allocation.limit_ - allocation.size_;
 

-        if (name != NULL) {
-            std::map<uint32_t, std::string> blobs;
+        size_t saved(save(output, allocation.limit_, overlap, top));
+        if (allocation.alloc_ > saved)
+            pad(output, allocation.alloc_ - saved);
+        position += allocation.alloc_;
+    }
+}

 
 

-            if (true) {
-                std::stringbuf data;
+}

 
 

-                Blob blob;
-                blob.magic = Swap(CSMAGIC_REQUIREMENTS);
-                blob.length = Swap(uint32_t(sizeof(Blob) + sizeof(uint32_t)));
-                put(data, &blob, sizeof(blob));
+typedef std::map<uint32_t, std::string> Blobs;

 
 

-                uint32_t requirements(0);
-                requirements = Swap(0);
-                put(data, &requirements, sizeof(requirements));
+static void insert(Blobs &blobs, uint32_t slot, const std::stringbuf &buffer) {
+    auto value(buffer.str());
+    std::swap(blobs[slot], value);
+}

 
 

-                blobs.insert(std::make_pair(CSSLOT_REQUIREMENTS, data.str()));
-            }
+static void insert(Blobs &blobs, uint32_t slot, uint32_t magic, const std::stringbuf &buffer) {
+    auto value(buffer.str());
+    Blob blob;
+    blob.magic = Swap(magic);
+    blob.length = Swap(uint32_t(sizeof(blob) + value.size()));
+    value.insert(0, reinterpret_cast<char *>(&blob), sizeof(blob));
+    std::swap(blobs[slot], value);
+}

 
 

-            if (entitlements.size() != 0) {
-                std::stringbuf data;
+static size_t put(std::streambuf &output, uint32_t magic, const Blobs &blobs) {
+    size_t total(0);
+    _foreach (blob, blobs)
+        total += blob.second.size();
+
+    struct SuperBlob super;
+    super.blob.magic = Swap(magic);
+    super.blob.length = Swap(uint32_t(sizeof(SuperBlob) + blobs.size() * sizeof(BlobIndex) + total));
+    super.count = Swap(uint32_t(blobs.size()));
+    put(output, &super, sizeof(super));
+
+    size_t offset(sizeof(SuperBlob) + sizeof(BlobIndex) * blobs.size());
+
+    _foreach (blob, blobs) {
+        BlobIndex index;
+        index.type = Swap(blob.first);
+        index.offset = Swap(uint32_t(offset));
+        put(output, &index, sizeof(index));
+        offset += blob.second.size();
+    }

 
 

-                Blob blob;
-                blob.magic = Swap(CSMAGIC_EMBEDDED_ENTITLEMENTS);
-                blob.length = Swap(uint32_t(sizeof(blob) + entitlements.size()));
-                put(data, &blob, sizeof(blob));
+    _foreach (blob, blobs)
+        put(output, blob.second.data(), blob.second.size());

 
 

-                put(data, entitlements.data(), entitlements.size());
+    return offset;
+}

 
 

-                blobs.insert(std::make_pair(CSSLOT_ENTITLEMENTS, data.str()));
-            }
+class Buffer {
+  private:
+    BIO *bio_;

 
 

-            if (true) {
-                std::stringbuf data;
-
-                uint32_t normal((allocation.limit_ + pagesize - 1) / pagesize);
-
-                Blob blob;
-                blob.magic = Swap(CSMAGIC_CODEDIRECTORY);
-                blob.length = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory) + strlen(name) + 1 + SHA_DIGEST_LENGTH * (allocation.special_ + normal)));
-                put(data, &blob, sizeof(blob));
-
-                CodeDirectory directory;
-                directory.version = Swap(uint32_t(0x00020001));
-                directory.flags = Swap(uint32_t(0));
-                directory.hashOffset = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory) + strlen(name) + 1 + SHA_DIGEST_LENGTH * allocation.special_));
-                directory.identOffset = Swap(uint32_t(sizeof(blob) + sizeof(CodeDirectory)));
-                directory.nSpecialSlots = Swap(allocation.special_);
-                directory.codeLimit = Swap(allocation.limit_);
-                directory.nCodeSlots = Swap(normal);
-                directory.hashSize = SHA_DIGEST_LENGTH;
-                directory.hashType = CS_HASHTYPE_SHA1;
-                directory.spare1 = 0x00;
-                directory.pageSize = pageshift;
-                directory.spare2 = Swap(uint32_t(0));
-                put(data, &directory, sizeof(directory));
-
-                put(data, name, strlen(name) + 1);
-
-                uint8_t storage[allocation.special_ + normal][SHA_DIGEST_LENGTH];
-                uint8_t (*hashes)[SHA_DIGEST_LENGTH] = storage + allocation.special_;
-
-                memset(storage, 0, sizeof(*storage) * allocation.special_);
-
-                _foreach (blob, blobs) {
-                    auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
-                    sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length));
-                }
+  public:
+    Buffer(BIO *bio) :
+        bio_(bio)
+    {
+        _assert(bio_ != NULL);
+    }

 
 

-                if (normal != 1)
-                    for (size_t i = 0; i != normal - 1; ++i)
-                        sha1(hashes[i], (pagesize * i < overlap.size() ? overlap.data() : top) + pagesize * i, pagesize);
-                if (normal != 0)
-                    sha1(hashes[normal - 1], top + pagesize * (normal - 1), ((allocation.limit_ - 1) % pagesize) + 1);
+    Buffer() :
+        bio_(BIO_new(BIO_s_mem()))
+    {
+    }

 
 

-                put(data, storage, sizeof(storage));
+    Buffer(const char *data, size_t size) :
+        Buffer(BIO_new_mem_buf(const_cast<char *>(data), size))
+    {
+    }

 
 

-                blobs.insert(std::make_pair(CSSLOT_CODEDIRECTORY, data.str()));
-            }
+    Buffer(const std::string &data) :
+        Buffer(data.data(), data.size())
+    {
+    }

 
 

-            size_t total(0);
-            _foreach (blob, blobs)
-                total += blob.second.size();
+    Buffer(PKCS7 *pkcs) :
+        Buffer()
+    {
+        _assert(i2d_PKCS7_bio(bio_, pkcs) != 0);
+    }
+
+    ~Buffer() {
+        BIO_free_all(bio_);
+    }

 
 

-            struct SuperBlob super;
-            super.blob.magic = Swap(CSMAGIC_EMBEDDED_SIGNATURE);
-            super.blob.length = Swap(uint32_t(sizeof(SuperBlob) + blobs.size() * sizeof(BlobIndex) + total));
-            super.count = Swap(uint32_t(blobs.size()));
-            put(output, &super, sizeof(super));
+    operator BIO *() const {
+        return bio_;
+    }
+
+    explicit operator std::string() const {
+        char *data;
+        auto size(BIO_get_mem_data(bio_, &data));
+        return std::string(data, size);
+    }
+};
+
+class Stuff {
+  private:
+    PKCS12 *value_;
+    EVP_PKEY *key_;
+    X509 *cert_;
+    STACK_OF(X509) *ca_;

 
 

-            uint32_t offset(sizeof(SuperBlob) + sizeof(BlobIndex) * blobs.size());
-            position += offset + total;
+  public:
+    Stuff(BIO *bio) :
+        value_(d2i_PKCS12_bio(bio, NULL)),
+        ca_(NULL)
+    {
+        _assert(value_ != NULL);
+        _assert(PKCS12_parse(value_, "", &key_, &cert_, &ca_) != 0);
+        _assert(key_ != NULL);
+        _assert(cert_ != NULL);
+    }
+
+    Stuff(const std::string &data) :
+        Stuff(Buffer(data))
+    {
+    }
+
+    ~Stuff() {
+        sk_X509_pop_free(ca_, X509_free);
+        X509_free(cert_);
+        EVP_PKEY_free(key_);
+        PKCS12_free(value_);
+    }
+
+    operator PKCS12 *() const {
+        return value_;
+    }
+
+    operator EVP_PKEY *() const {
+        return key_;
+    }
+
+    operator X509 *() const {
+        return cert_;
+    }
+
+    operator STACK_OF(X509) *() const {
+        return ca_;
+    }
+};
+
+class Signature {
+  private:
+    PKCS7 *value_;
+
+  public:
+    Signature(const Stuff &stuff, const Buffer &data) :
+        value_(PKCS7_sign(stuff, stuff, stuff, data, PKCS7_BINARY | PKCS7_DETACHED))
+    {
+        _assert(value_ != NULL);
+    }
+
+    ~Signature() {
+        PKCS7_free(value_);
+    }
+
+    operator PKCS7 *() const {
+        return value_;
+    }
+};
+
+class NullBuffer :
+    public std::streambuf
+{
+  public:
+    virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+        return size;
+    }
+
+    virtual int_type overflow(int_type next) {
+        return next;
+    }
+};
+
+class HashBuffer :
+    public std::streambuf
+{
+  private:
+    std::vector<char> &hash_;
+    SHA_CTX context_;
+
+  public:
+    HashBuffer(std::vector<char> &hash) :
+        hash_(hash)
+    {
+        SHA1_Init(&context_);
+    }
+
+    ~HashBuffer() {
+        hash_.resize(SHA_DIGEST_LENGTH);
+        SHA1_Final(reinterpret_cast<uint8_t *>(hash_.data()), &context_);
+    }
+
+    virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+        SHA1_Update(&context_, data, size);
+        return size;
+    }
+
+    virtual int_type overflow(int_type next) {
+        if (next == traits_type::eof())
+            return sync();
+        char value(next);
+        xsputn(&value, 1);
+        return next;
+    }
+};
+
+class HashProxy :
+    public HashBuffer
+{
+  private:
+    std::streambuf &buffer_;
+
+  public:
+    HashProxy(std::vector<char> &hash, std::streambuf &buffer) :
+        HashBuffer(hash),
+        buffer_(buffer)
+    {
+    }
+
+    virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+        _assert(HashBuffer::xsputn(data, size) == size);
+        return buffer_.sputn(data, size);
+    }
+};
+
+static bool Starts(const std::string &lhs, const std::string &rhs) {
+    return lhs.size() >= rhs.size() && lhs.compare(0, rhs.size(), rhs) == 0;
+}
+
+class Split {
+  public:
+    std::string dir;
+    std::string base;
+
+    Split(const std::string &path) {
+        size_t slash(path.rfind('/'));
+        if (slash == std::string::npos)
+            base = path;
+        else {
+            dir = path.substr(0, slash + 1);
+            base = path.substr(slash + 1);
+        }
+    }
+};
+
+static void mkdir_p(const std::string &path) {
+    if (path.empty())
+        return;
+#ifdef __WIN32__
+    if (_syscall(mkdir(path.c_str()), EEXIST) == -EEXIST)
+        return;
+#else
+    if (_syscall(mkdir(path.c_str(), 0755), EEXIST) == -EEXIST)
+        return;
+#endif
+    auto slash(path.rfind('/', path.size() - 1));
+    if (slash == std::string::npos)
+        return;
+    mkdir_p(path.substr(0, slash));
+}
+
+static std::string Temporary(std::filebuf &file, const Split &split) {
+    std::string temp(split.dir + ".ldid." + split.base);
+    mkdir_p(split.dir);
+    _assert_(file.open(temp.c_str(), std::ios::out | std::ios::trunc | std::ios::binary) == &file, "open(): %s", temp.c_str());
+    return temp;
+}
+
+static void Commit(const std::string &path, const std::string &temp) {
+    struct stat info;
+    if (_syscall(stat(path.c_str(), &info), ENOENT) == 0) {
+#ifndef __WIN32__
+        _syscall(chown(temp.c_str(), info.st_uid, info.st_gid));
+#endif
+        _syscall(chmod(temp.c_str(), info.st_mode));
+    }
+
+    _syscall(rename(temp.c_str(), path.c_str()));
+}
+
+namespace ldid {
+
+void Sign(const void *idata, size_t isize, std::streambuf &output, const std::string &identifier, const std::string &entitlements, const std::string &key, const Slots &slots) {
+    Allocate(idata, isize, output, fun([&](size_t size) -> size_t {
+        size_t alloc(sizeof(struct SuperBlob));
+
+        uint32_t special(0);
+
+        special = std::max(special, CSSLOT_REQUIREMENTS);
+        alloc += sizeof(struct BlobIndex);
+        alloc += 0xc;
+
+        if (!entitlements.empty()) {
+            special = std::max(special, CSSLOT_ENTITLEMENTS);
+            alloc += sizeof(struct BlobIndex);
+            alloc += sizeof(struct Blob);
+            alloc += entitlements.size();
+        }
+
+        special = std::max(special, CSSLOT_CODEDIRECTORY);
+        alloc += sizeof(struct BlobIndex);
+        alloc += sizeof(struct Blob);
+        alloc += sizeof(struct CodeDirectory);
+        alloc += identifier.size() + 1;
+
+        if (!key.empty()) {
+            alloc += sizeof(struct BlobIndex);
+            alloc += sizeof(struct Blob);
+            // XXX: this is just a "sufficiently large number"
+            alloc += 0x3000;
+        }
+
+        _foreach (slot, slots)
+            special = std::max(special, slot.first);
+
+        uint32_t normal((size + PageSize_ - 1) / PageSize_);
+        alloc = Align(alloc + (special + normal) * SHA_DIGEST_LENGTH, 16);
+        return alloc;
+    }), fun([&](std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t {
+        Blobs blobs;
+
+        if (true) {
+            std::stringbuf data;
+
+            Blobs requirements;
+            put(data, CSMAGIC_REQUIREMENTS, requirements);
+
+            insert(blobs, CSSLOT_REQUIREMENTS, data);
+        }
+
+        if (!entitlements.empty()) {
+            std::stringbuf data;
+            put(data, entitlements.data(), entitlements.size());
+            insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, data);
+        }
+
+        if (true) {
+            std::stringbuf data;
+
+            uint32_t special(0);
+            _foreach (blob, blobs)
+                special = std::max(special, blob.first);
+            _foreach (slot, slots)
+                special = std::max(special, slot.first);
+            uint32_t normal((limit + PageSize_ - 1) / PageSize_);
+
+            CodeDirectory directory;
+            directory.version = Swap(uint32_t(0x00020001));
+            directory.flags = Swap(uint32_t(0));
+            directory.hashOffset = Swap(uint32_t(sizeof(Blob) + sizeof(CodeDirectory) + identifier.size() + 1 + SHA_DIGEST_LENGTH * special));
+            directory.identOffset = Swap(uint32_t(sizeof(Blob) + sizeof(CodeDirectory)));
+            directory.nSpecialSlots = Swap(special);
+            directory.codeLimit = Swap(uint32_t(limit));
+            directory.nCodeSlots = Swap(normal);
+            directory.hashSize = SHA_DIGEST_LENGTH;
+            directory.hashType = CS_HASHTYPE_SHA1;
+            directory.spare1 = 0x00;
+            directory.pageSize = PageShift_;
+            directory.spare2 = Swap(uint32_t(0));
+            put(data, &directory, sizeof(directory));
+
+            put(data, identifier.c_str(), identifier.size() + 1);
+
+            uint8_t storage[special + normal][SHA_DIGEST_LENGTH];
+            uint8_t (*hashes)[SHA_DIGEST_LENGTH] = storage + special;
+
+            memset(storage, 0, sizeof(*storage) * special);

 
             _foreach (blob, blobs) {
 
             _foreach (blob, blobs) {

-                BlobIndex index;
-                index.type = Swap(blob.first);
-                index.offset = Swap(offset);
-                put(output, &index, sizeof(index));
-                offset += blob.second.size();
+                auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
+                sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length));

             }
 
             }
 

-            _foreach (blob, blobs)
-                put(output, blob.second.data(), blob.second.size());
+            _foreach (slot, slots) {
+                _assert(sizeof(*hashes) == slot.second.size());
+                memcpy(hashes - slot.first, slot.second.data(), slot.second.size());
+            }
+
+            if (normal != 1)
+                for (size_t i = 0; i != normal - 1; ++i)
+                    sha1(hashes[i], (PageSize_ * i < overlap.size() ? overlap.data() : top) + PageSize_ * i, PageSize_);
+            if (normal != 0)
+                sha1(hashes[normal - 1], top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1);
+
+            put(data, storage, sizeof(storage));
+
+            insert(blobs, CSSLOT_CODEDIRECTORY, CSMAGIC_CODEDIRECTORY, data);
+        }

 
 

-            if (allocation.alloc_ > position)
-                pad(output, allocation.alloc_ - position);
+        if (!key.empty()) {
+            std::stringbuf data;
+            const std::string &sign(blobs[CSSLOT_CODEDIRECTORY]);
+
+            Stuff stuff(key);
+            Buffer bio(sign);
+
+            Signature signature(stuff, sign);
+            Buffer result(signature);
+            std::string value(result);
+            put(data, value.data(), value.size());
+
+            insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data);
+        }
+
+        return put(output, CSMAGIC_EMBEDDED_SIGNATURE, blobs);
+    }));
+}
+
+static void Unsign(void *idata, size_t isize, std::streambuf &output) {
+    Allocate(idata, isize, output, fun([](size_t size) -> size_t {
+        return 0;
+    }), fun([](std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t {
+        return 0;
+    }));
+}
+
+std::string DiskFolder::Path(const std::string &path) {
+    return path_ + "/" + path;
+}
+
+DiskFolder::DiskFolder(const std::string &path) :
+    path_(path)
+{
+}
+
+DiskFolder::~DiskFolder() {
+    if (!std::uncaught_exception())
+        for (const auto &commit : commit_)
+            Commit(commit.first, commit.second);
+}
+
+void DiskFolder::Find(const std::string &root, const std::string &base, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)>&code) {
+    std::string path(Path(root) + base);
+
+    DIR *dir(opendir(path.c_str()));
+    _assert(dir != NULL);
+    _scope({ _syscall(closedir(dir)); });
+
+    while (auto child = readdir(dir)) {
+        std::string name(child->d_name);
+        if (name == "." || name == "..")
+            continue;
+        if (Starts(name, ".ldid."))
+            continue;
+
+        bool directory;
+
+#ifdef __WIN32__
+        struct stat info;
+        _syscall(stat(path.c_str(), &info));
+        if (false);
+        else if (S_ISDIR(info.st_mode))
+            directory = true;
+        else if (S_ISREG(info.st_mode))
+            directory = false;
+        else
+            _assert_(false, "st_mode=%x", info.st_mode);
+#else
+        switch (child->d_type) {
+            case DT_DIR:
+                directory = true;
+                break;
+            case DT_REG:
+                directory = false;
+                break;
+            default:
+                _assert_(false, "d_type=%u", child->d_type);

         }
         }

+#endif
+
+        if (directory)
+            Find(root, base + name + "/", code);
+        else
+            code(base + name, fun([&](const Functor<void (std::streambuf &, std::streambuf &)> &code) {
+                std::string access(root + base + name);
+                _assert_(Open(access, fun([&](std::streambuf &data) {
+                    NullBuffer save;
+                    code(data, save);
+                })), "open(): %s", access.c_str());
+            }));
+    }
+}
+
+void DiskFolder::Save(const std::string &path, const Functor<void (std::streambuf &)> &code) {
+    std::filebuf save;
+    auto from(Path(path));
+    commit_[from] = Temporary(save, from);
+    code(save);
+}
+
+bool DiskFolder::Open(const std::string &path, const Functor<void (std::streambuf &)> &code) {
+    std::filebuf data;
+    auto result(data.open(Path(path).c_str(), std::ios::binary | std::ios::in));
+    if (result == NULL)
+        return false;
+    _assert(result == &data);
+    code(data);
+    return true;
+}
+
+void DiskFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)>&code) {
+    Find(path, "", code);
+}
+
+SubFolder::SubFolder(Folder &parent, const std::string &path) :
+    parent_(parent),
+    path_(path)
+{
+}
+
+void SubFolder::Save(const std::string &path, const Functor<void (std::streambuf &)> &code) {
+    return parent_.Save(path_ + path, code);
+}
+
+bool SubFolder::Open(const std::string &path, const Functor<void (std::streambuf &)> &code) {
+    return parent_.Open(path_ + path, code);
+}
+
+void SubFolder::Find(const std::string &path, const Functor<void (const std::string &, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &)> &code) {
+    return parent_.Find(path_ + path, code);
+}
+
+static size_t copy(std::streambuf &source, std::streambuf &target) {
+    size_t total(0);
+    for (;;) {
+        char data[4096];
+        size_t writ(source.sgetn(data, sizeof(data)));
+        if (writ == 0)
+            break;
+        _assert(target.sputn(data, writ) == writ);
+        total += writ;
+    }
+    return total;
+}
+
+static plist_t plist(const std::string &data) {
+    plist_t plist(NULL);
+    if (Starts(data, "bplist00"))
+        plist_from_bin(data.data(), data.size(), &plist);
+    else
+        plist_from_xml(data.data(), data.size(), &plist);
+    _assert(plist != NULL);
+    return plist;
+}
+
+static void plist_d(std::streambuf &buffer, const Functor<void (plist_t)> &code) {
+    std::stringbuf data;
+    copy(buffer, data);
+    auto node(plist(data.str()));
+    _scope({ plist_free(node); });
+    _assert(plist_get_node_type(node) == PLIST_DICT);
+    code(node);
+}
+
+static std::string plist_s(plist_t node) {
+    _assert(node != NULL);
+    _assert(plist_get_node_type(node) == PLIST_STRING);
+    char *data;
+    plist_get_string_val(node, &data);
+    _scope({ free(data); });
+    return data;
+}
+
+enum Mode {
+    NoMode,
+    OptionalMode,
+    OmitMode,
+    NestedMode,
+    TopMode,
+};
+
+class Expression {
+  private:
+    regex_t regex_;
+
+  public:
+    Expression(const std::string &code) {
+        _assert_(regcomp(&regex_, code.c_str(), REG_EXTENDED | REG_NOSUB) == 0, "regcomp()");
+    }
+
+    ~Expression() {
+        regfree(&regex_);

     }
     }

+
+    bool operator ()(const std::string &data) const {
+        auto value(regexec(&regex_, data.c_str(), 0, NULL, 0));
+        if (value == REG_NOMATCH)
+            return false;
+        _assert_(value == 0, "regexec()");
+        return true;
+    }
+};
+
+struct Rule {
+    unsigned weight_;
+    Mode mode_;
+    std::string code_;
+
+    mutable std::auto_ptr<Expression> regex_;
+
+    Rule(unsigned weight, Mode mode, const std::string &code) :
+        weight_(weight),
+        mode_(mode),
+        code_(code)
+    {
+    }
+
+    Rule(const Rule &rhs) :
+        weight_(rhs.weight_),
+        mode_(rhs.mode_),
+        code_(rhs.code_)
+    {
+    }
+
+    void Compile() const {
+        regex_.reset(new Expression(code_));
+    }
+
+    bool operator ()(const std::string &data) const {
+        _assert(regex_.get() != NULL);
+        return (*regex_)(data);
+    }
+
+    bool operator <(const Rule &rhs) const {
+        if (weight_ > rhs.weight_)
+            return true;
+        if (weight_ < rhs.weight_)
+            return false;
+        return mode_ > rhs.mode_;
+    }
+};
+
+struct RuleCode {
+    bool operator ()(const Rule *lhs, const Rule *rhs) const {
+        return lhs->code_ < rhs->code_;
+    }
+};
+
+std::string Bundle(const std::string &root, Folder &folder, const std::string &key, std::map<std::string, std::vector<char>> &remote) {
+    std::string executable;
+    std::string identifier;
+
+    static const std::string info("Info.plist");
+
+    _assert_(folder.Open(info, fun([&](std::streambuf &buffer) {
+        plist_d(buffer, fun([&](plist_t node) {
+            executable = plist_s(plist_dict_get_item(node, "CFBundleExecutable"));
+            identifier = plist_s(plist_dict_get_item(node, "CFBundleIdentifier"));
+        }));
+    })), "open(): Info.plist");
+
+    std::map<std::string, std::multiset<Rule>> versions;
+
+    auto &rules1(versions[""]);
+    auto &rules2(versions["2"]);
+
+    static const std::string signature("_CodeSignature/CodeResources");
+
+    folder.Open(signature, fun([&](std::streambuf &buffer) {
+        plist_d(buffer, fun([&](plist_t node) {
+            // XXX: maybe attempt to preserve existing rules
+        }));
+    }));
+
+    if (true) {
+        rules1.insert(Rule{1, NoMode, "^"});
+        rules1.insert(Rule{10000, OmitMode, "^(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/|())SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+        rules1.insert(Rule{1000, OptionalMode, "^.*\\.lproj/"});
+        rules1.insert(Rule{1100, OmitMode, "^.*\\.lproj/locversion.plist$"});
+        rules1.insert(Rule{10000, OmitMode, "^Watch/[^/]+\\.app/(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/)SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+        rules1.insert(Rule{1, NoMode, "^version.plist$"});
+    }
+
+    if (true) {
+        rules2.insert(Rule{11, NoMode, ".*\\.dSYM($|/)"});
+        rules2.insert(Rule{20, NoMode, "^"});
+        rules2.insert(Rule{2000, OmitMode, "^(.*/)?\\.DS_Store$"});
+        rules2.insert(Rule{10000, OmitMode, "^(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/|())SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+        rules2.insert(Rule{10, NestedMode, "^(Frameworks|SharedFrameworks|PlugIns|Plug-ins|XPCServices|Helpers|MacOS|Library/(Automator|Spotlight|LoginItems))/"});
+        rules2.insert(Rule{1, NoMode, "^.*"});
+        rules2.insert(Rule{1000, OptionalMode, "^.*\\.lproj/"});
+        rules2.insert(Rule{1100, OmitMode, "^.*\\.lproj/locversion.plist$"});
+        rules2.insert(Rule{20, OmitMode, "^Info\\.plist$"});
+        rules2.insert(Rule{20, OmitMode, "^PkgInfo$"});
+        rules2.insert(Rule{10000, OmitMode, "^Watch/[^/]+\\.app/(Frameworks/[^/]+\\.framework/|PlugIns/[^/]+\\.appex/|PlugIns/[^/]+\\.appex/Frameworks/[^/]+\\.framework/)SC_Info/[^/]+\\.(sinf|supf|supp)$"});
+        rules2.insert(Rule{10, NestedMode, "^[^/]+$"});
+        rules2.insert(Rule{20, NoMode, "^embedded\\.provisionprofile$"});
+        rules2.insert(Rule{20, NoMode, "^version\\.plist$"});
+    }
+
+    std::map<std::string, std::vector<char>> local;
+
+    static Expression nested("^PlugIns/[^/]*\\.appex/Info\\.plist$");
+
+    folder.Find("", fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &code) {
+        if (!nested(name))
+            return;
+        auto bundle(root + Split(name).dir);
+        SubFolder subfolder(folder, bundle);
+        Bundle(bundle, subfolder, key, local);
+    }));
+
+    folder.Find("", fun([&](const std::string &name, const Functor<void (const Functor<void (std::streambuf &, std::streambuf &)> &)> &code) {
+        if (name == executable || name == signature)
+            return;
+
+        auto &hash(local[name]);
+        if (!hash.empty())
+            return;
+
+        code(fun([&](std::streambuf &data, std::streambuf &save) {
+            HashProxy proxy(hash, save);
+            copy(data, proxy);
+        }));
+
+        _assert(hash.size() == SHA_DIGEST_LENGTH);
+    }));
+
+    auto plist(plist_new_dict());
+    _scope({ plist_free(plist); });
+
+    for (const auto &version : versions) {
+        auto files(plist_new_dict());
+        plist_dict_set_item(plist, ("files" + version.first).c_str(), files);
+
+        for (const auto &rule : version.second)
+            rule.Compile();
+
+        for (const auto &hash : local)
+            for (const auto &rule : version.second)
+                if (rule(hash.first)) {
+                    if (rule.mode_ == NoMode)
+                        plist_dict_set_item(files, hash.first.c_str(), plist_new_data(hash.second.data(), hash.second.size()));
+                    else if (rule.mode_ == OptionalMode) {
+                        auto entry(plist_new_dict());
+                        plist_dict_set_item(entry, "hash", plist_new_data(hash.second.data(), hash.second.size()));
+                        plist_dict_set_item(entry, "optional", plist_new_bool(true));
+                        plist_dict_set_item(files, hash.first.c_str(), entry);
+                    }
+
+                    break;
+                }
+    }
+
+    for (const auto &version : versions) {
+        auto rules(plist_new_dict());
+        plist_dict_set_item(plist, ("rules" + version.first).c_str(), rules);
+
+        std::multiset<const Rule *, RuleCode> ordered;
+        for (const auto &rule : version.second)
+            ordered.insert(&rule);
+
+        for (const auto &rule : ordered)
+            if (rule->weight_ == 1 && rule->mode_ == NoMode)
+                plist_dict_set_item(rules, rule->code_.c_str(), plist_new_bool(true));
+            else {
+                auto entry(plist_new_dict());
+                plist_dict_set_item(rules, rule->code_.c_str(), entry);
+
+                switch (rule->mode_) {
+                    case NoMode:
+                        break;
+                    case OmitMode:
+                        plist_dict_set_item(entry, "omit", plist_new_bool(true));
+                        break;
+                    case OptionalMode:
+                        plist_dict_set_item(entry, "optional", plist_new_bool(true));
+                        break;
+                    case NestedMode:
+                        plist_dict_set_item(entry, "nested", plist_new_bool(true));
+                        break;
+                    case TopMode:
+                        plist_dict_set_item(entry, "top", plist_new_bool(true));
+                        break;
+                }
+
+                if (rule->weight_ >= 10000)
+                    plist_dict_set_item(entry, "weight", plist_new_uint(rule->weight_));
+                else if (rule->weight_ != 1)
+                    plist_dict_set_item(entry, "weight", plist_new_real(rule->weight_));
+            }
+    }
+
+    folder.Save(signature, fun([&](std::streambuf &save) {
+        HashProxy proxy(local[signature], save);
+        char *xml(NULL);
+        uint32_t size;
+        plist_to_xml(plist, &xml, &size);
+        _scope({ free(xml); });
+        put(proxy, xml, size);
+    }));
+
+    folder.Open(executable, fun([&](std::streambuf &buffer) {
+        // XXX: this is a miserable fail
+        std::stringbuf temp;
+        copy(buffer, temp);
+        auto data(temp.str());
+
+        folder.Save(executable, fun([&](std::streambuf &save) {
+            Slots slots;
+            slots[1] = local.at(info);
+            slots[3] = local.at(signature);
+
+            HashProxy proxy(local[executable], save);
+            Sign(data.data(), data.size(), proxy, identifier, "", key, slots);
+        }));
+    }));
+
+    for (const auto &hash : local)
+        remote[root + hash.first] = hash.second;
+
+    return executable;

 }
 
 }
 

-int main(int argc, const char *argv[]) {
+}
+
+int main(int argc, char *argv[]) {
+    OpenSSL_add_all_algorithms();
+

     union {
         uint16_t word;
         uint8_t byte[2];
     union {
         uint16_t word;
         uint8_t byte[2];


@@ -1246,6 +1987,8 @@ int main(int argc, const char *argv[]) {
     uint32_t timev(0);
 
     Map entitlements;
     uint32_t timev(0);
 
     Map entitlements;

+    Map key;
+    ldid::Slots slots;

 
     std::vector<std::string> files;
 
 
     std::vector<std::string> files;
 


@@ -1261,14 +2004,33 @@ int main(int argc, const char *argv[]) {
         if (argv[argi][0] != '-')
             files.push_back(argv[argi]);
         else switch (argv[argi][1]) {
         if (argv[argi][0] != '-')
             files.push_back(argv[argi]);
         else switch (argv[argi][1]) {

-            case 'r': flag_r = true; break;
+            case 'r':
+                _assert(!flag_s);
+                _assert(!flag_S);
+                flag_r = true;
+            break;
+

             case 'e': flag_e = true; break;
 
             case 'e': flag_e = true; break;
 

+            case 'E': {
+                const char *slot = argv[argi] + 2;
+                const char *colon = strchr(slot, ':');
+                _assert(colon != NULL);
+                Map file(colon + 1, O_RDONLY, PROT_READ, MAP_PRIVATE);
+                char *arge;
+                unsigned number(strtoul(slot, &arge, 0));
+                _assert(arge == colon);
+                std::vector<char> &hash(slots[number]);
+                hash.resize(SHA_DIGEST_LENGTH);
+                sha1(reinterpret_cast<uint8_t *>(hash.data()), file.data(), file.size());
+            } break;
+

             case 'D': flag_D = true; break;
 
             case 'a': flag_a = true; break;
 
             case 'A':
             case 'D': flag_D = true; break;
 
             case 'a': flag_a = true; break;
 
             case 'A':

+                _assert(!flag_A);

                 flag_A = true;
                 if (argv[argi][2] != '\0') {
                     const char *cpu = argv[argi] + 2;
                 flag_A = true;
                 if (argv[argi][2] != '\0') {
                     const char *cpu = argv[argi] + 2;


@@ -1283,11 +2045,13 @@ int main(int argc, const char *argv[]) {
             break;
 
             case 's':
             break;
 
             case 's':

+                _assert(!flag_r);

                 _assert(!flag_S);
                 flag_s = true;
             break;
 
             case 'S':
                 _assert(!flag_S);
                 flag_s = true;
             break;
 
             case 'S':

+                _assert(!flag_r);

                 _assert(!flag_s);
                 flag_S = true;
                 if (argv[argi][2] != '\0') {
                 _assert(!flag_s);
                 flag_S = true;
                 if (argv[argi][2] != '\0') {


@@ -1296,6 +2060,10 @@ int main(int argc, const char *argv[]) {
                 }
             break;
 
                 }
             break;
 

+            case 'K':
+                key.open(argv[argi] + 2, O_RDONLY, PROT_READ, MAP_PRIVATE);
+            break;
+

             case 'T': {
                 flag_T = true;
                 if (argv[argi][2] == '-')
             case 'T': {
                 flag_T = true;
                 if (argv[argi][2] == '-')


@@ -1316,7 +2084,8 @@ int main(int argc, const char *argv[]) {
             break;
         }
 
             break;
         }
 

-    _assert(!flag_S || !flag_r);
+    _assert(flag_S || key.empty());
+    _assert(flag_S || flag_I == NULL);

 
     if (files.empty()) usage: {
         exit(0);
 
     if (files.empty()) usage: {
         exit(0);


@@ -1324,29 +2093,34 @@ int main(int argc, const char *argv[]) {
 
     size_t filei(0), filee(0);
     _foreach (file, files) try {
 
     size_t filei(0), filee(0);
     _foreach (file, files) try {

-        const char *path(file.c_str());
-        const char *base = strrchr(path, '/');
+        std::string path(file);

 
 

-        std::string dir;
-        if (base != NULL)
-            dir.assign(path, base++ - path + 1);
-        else
-            base = path;
+        struct stat info;
+        _syscall(stat(path.c_str(), &info));

 
 

-        const char *name(flag_I ?: base);
-        char *temp(NULL);
-
-        if (flag_S || flag_r) {
+        if (S_ISDIR(info.st_mode)) {
+            _assert(!flag_r);
+            ldid::DiskFolder folder(path);
+            std::map<std::string, std::vector<char>> hashes;
+            path += "/" + Bundle("", folder, key, hashes);
+        } else if (flag_S || flag_r) {

             Map input(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
 
             std::filebuf output;
             Map input(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
 
             std::filebuf output;

-            asprintf(&temp, "%s.%s.cs", dir.c_str(), base);
-            _assert(output.open(temp, std::ios::out | std::ios::trunc | std::ios::binary) == &output);
+            Split split(path);
+            auto temp(Temporary(output, split));
+
+            if (flag_r)
+                ldid::Unsign(input.data(), input.size(), output);
+            else {
+                std::string identifier(flag_I ?: split.base.c_str());
+                ldid::Sign(input.data(), input.size(), output, identifier, entitlements, key, slots);
+            }

 
 

-            resign(input.data(), input.size(), output, flag_S ? name : NULL, entitlements);
+            Commit(path, temp);

         }
 
         }
 

-        Map mapping(temp ?: path, flag_T || flag_s);
+        Map mapping(path, flag_T || flag_s);

         FatHeader fat_header(mapping.data(), mapping.size());
 
         _foreach (mach_header, fat_header.GetMachHeaders()) {
         FatHeader fat_header(mapping.data(), mapping.size());
 
         _foreach (mach_header, fat_header.GetMachHeaders()) {


@@ -1407,7 +2181,7 @@ int main(int argc, const char *argv[]) {
                     if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) {
                         uint32_t begin = Swap(super->index[index].offset);
                         struct Blob *entitlements = reinterpret_cast<struct Blob *>(blob + begin);
                     if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) {
                         uint32_t begin = Swap(super->index[index].offset);
                         struct Blob *entitlements = reinterpret_cast<struct Blob *>(blob + begin);

-                        fwrite(entitlements + 1, 1, Swap(entitlements->length) - sizeof(struct Blob), stdout);
+                        fwrite(entitlements + 1, 1, Swap(entitlements->length) - sizeof(*entitlements), stdout);

                     }
             }
 
                     }
             }
 


@@ -1430,23 +2204,13 @@ int main(int argc, const char *argv[]) {
 
                         if (pages != 1)
                             for (size_t i = 0; i != pages - 1; ++i)
 
                         if (pages != 1)
                             for (size_t i = 0; i != pages - 1; ++i)

-                                sha1(hashes[i], top + 0x1000 * i, 0x1000);
+                                sha1(hashes[i], top + PageSize_ * i, PageSize_);

                         if (pages != 0)
                         if (pages != 0)

-                            sha1(hashes[pages - 1], top + 0x1000 * (pages - 1), ((data - 1) % 0x1000) + 1);
+                            sha1(hashes[pages - 1], top + PageSize_ * (pages - 1), ((data - 1) % PageSize_) + 1);

                     }
             }
         }
 
                     }
             }
         }
 

-        if (temp != NULL) {
-            struct stat info;
-            _syscall(stat(path, &info));
-            _syscall(chown(temp, info.st_uid, info.st_gid));
-            _syscall(chmod(temp, info.st_mode));
-            _syscall(unlink(path));
-            _syscall(rename(temp, path));
-            free(temp);
-        }
-

         ++filei;
     } catch (const char *) {
         ++filee;
         ++filei;
     } catch (const char *) {
         ++filee;