Fix range check error re-hashing degenerate files.

[ldid.git] / ldid.cpp

diff --git a/ldid.cpp b/ldid.cpp
index e320f126eb567680ab0b925e04fe3f71b94326e6..0769e7e32e327a9d9f3aedc5b713d7f2b5d85a93 100644 (file)
--- a/ldid.cpp
+++ b/ldid.cpp
@@ -23,27 +23,72 @@
 #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 <dirent.h>

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

+#include <regex.h>

 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <stdbool.h>
 #include <stdint.h>
 #include <unistd.h>
 
 #include <sys/mman.h>
 #include <sys/stat.h>

+#include <sys/types.h>

 
 

+#ifndef LDID_NOSMIME

 #include <openssl/err.h>
 #include <openssl/err.h>

+#include <openssl/asn1t.h>

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

+#endif
+
+#ifdef __APPLE__
+#include <CommonCrypto/CommonDigest.h>
+
+#define LDID_SHA1_DIGEST_LENGTH CC_SHA1_DIGEST_LENGTH
+#define LDID_SHA1 CC_SHA1
+#define LDID_SHA1_CTX CC_SHA1_CTX
+#define LDID_SHA1_Init CC_SHA1_Init
+#define LDID_SHA1_Update CC_SHA1_Update
+#define LDID_SHA1_Final CC_SHA1_Final
+
+#define LDID_SHA256_DIGEST_LENGTH CC_SHA256_DIGEST_LENGTH
+#define LDID_SHA256 CC_SHA256
+#define LDID_SHA256_CTX CC_SHA256_CTX
+#define LDID_SHA256_Init CC_SHA256_Init
+#define LDID_SHA256_Update CC_SHA256_Update
+#define LDID_SHA256_Final CC_SHA256_Final
+#else

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

+#define LDID_SHA1_DIGEST_LENGTH SHA_DIGEST_LENGTH
+#define LDID_SHA1 SHA1
+#define LDID_SHA1_CTX SHA_CTX
+#define LDID_SHA1_Init SHA1_Init
+#define LDID_SHA1_Update SHA1_Update
+#define LDID_SHA1_Final SHA1_Final
+
+#define LDID_SHA256_DIGEST_LENGTH SHA256_DIGEST_LENGTH
+#define LDID_SHA256 SHA256
+#define LDID_SHA256_CTX SHA256_CTX
+#define LDID_SHA256_Init SHA256_Init
+#define LDID_SHA256_Update SHA256_Update
+#define LDID_SHA256_Final SHA256_Final
+#endif
+
+#ifndef LDID_NOPLIST

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

+#elif __APPLE__
+#include <CoreFoundation/CoreFoundation.h>
+#endif

 
 #include "ldid.hpp"
 
 
 #include "ldid.hpp"
 


@@ -52,30 +97,44 @@
 #define _assert__(line) \
     _assert___(line)
 
 #define _assert__(line) \
     _assert___(line)
 

+#ifndef $
+#define $(value) value
+#endif
+
+#ifdef __EXCEPTIONS
+#define _assert_(expr, format, ...) \
+    do if (!(expr)) { \
+        fprintf(stderr, $("%s(%u): _assert(): " format "\n"), __FILE__, __LINE__, ## __VA_ARGS__); \
+        throw $(__FILE__ "(" _assert__(__LINE__) "): _assert(" #expr ")"); \
+    } while (false)
+#else
+// XXX: this is not acceptable

 #define _assert_(expr, format, ...) \
     do if (!(expr)) { \
 #define _assert_(expr, format, ...) \
     do if (!(expr)) { \

-        fprintf(stderr, "%s(%u): _assert(): " format "\n", __FILE__, __LINE__, ## __VA_ARGS__); \
-        throw __FILE__ "(" _assert__(__LINE__) "): _assert(" #expr ")"; \
+        fprintf(stderr, $("%s(%u): _assert(): " format "\n"), __FILE__, __LINE__, ## __VA_ARGS__); \
+        exit(-1); \

     } while (false)
     } while (false)

+#endif

 
 #define _assert(expr) \
 
 #define _assert(expr) \

-    _assert_(expr, "%s", #expr)
-
-#define _syscall(expr) ({ \
-    __typeof__(expr) _value; \
-    do if ((long) (_value = (expr)) != -1) \
-        break; \
-    else switch (errno) { \
-        case EINTR: \
-            continue; \
-        default: \
-            _assert_(false, "errno=%u", errno); \
-    } while (true); \
-    _value; \
-})
+    _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() \
 
 #define _trace() \

-    fprintf(stderr, "_trace(%s:%u): %s\n", __FILE__, __LINE__, __FUNCTION__)
+    fprintf(stderr, $("_trace(%s:%u): %s\n"), __FILE__, __LINE__, $(__FUNCTION__))

 
 #define _not(type) \
     ((type) ~ (type) 0)
 
 #define _not(type) \
     ((type) ~ (type) 0)


@@ -95,6 +154,61 @@ 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)
+
+#define CPU_ARCH_MASK  uint32_t(0xff000000)
+#define CPU_ARCH_ABI64 uint32_t(0x01000000)
+
+#define CPU_TYPE_ANY     uint32_t(-1)
+#define CPU_TYPE_VAX     uint32_t( 1)
+#define CPU_TYPE_MC680x0 uint32_t( 6)
+#define CPU_TYPE_X86     uint32_t( 7)
+#define CPU_TYPE_MC98000 uint32_t(10)
+#define CPU_TYPE_HPPA    uint32_t(11)
+#define CPU_TYPE_ARM     uint32_t(12)
+#define CPU_TYPE_MC88000 uint32_t(13)
+#define CPU_TYPE_SPARC   uint32_t(14)
+#define CPU_TYPE_I860    uint32_t(15)
+#define CPU_TYPE_POWERPC uint32_t(18)
+
+#define CPU_TYPE_I386 CPU_TYPE_X86
+
+#define CPU_TYPE_ARM64     (CPU_ARCH_ABI64 | CPU_TYPE_ARM)
+#define CPU_TYPE_POWERPC64 (CPU_ARCH_ABI64 | CPU_TYPE_POWERPC)
+#define CPU_TYPE_X86_64    (CPU_ARCH_ABI64 | CPU_TYPE_X86)
+

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


@@ -132,6 +246,7 @@ struct mach_header {
 #define MH_OBJECT     0x1
 #define MH_EXECUTE    0x2
 #define MH_DYLIB      0x6
 #define MH_OBJECT     0x1
 #define MH_EXECUTE    0x2
 #define MH_DYLIB      0x6

+#define MH_DYLINKER   0x7

 #define MH_BUNDLE     0x8
 #define MH_DYLIB_STUB 0x9
 
 #define MH_BUNDLE     0x8
 #define MH_DYLIB_STUB 0x9
 


@@ -157,6 +272,16 @@ struct load_command {
 #define LC_DYLD_INFO_ONLY     uint32_t(0x22 | LC_REQ_DYLD)
 #define LC_ENCRYPTION_INFO_64 uint32_t(0x2c)
 
 #define LC_DYLD_INFO_ONLY     uint32_t(0x22 | LC_REQ_DYLD)
 #define LC_ENCRYPTION_INFO_64 uint32_t(0x2c)
 

+union Version {
+    struct {
+        uint8_t patch;
+        uint8_t minor;
+        uint16_t major;
+    } _packed;
+
+    uint32_t value;
+};
+

 struct dylib {
     uint32_t name;
     uint32_t timestamp;
 struct dylib {
     uint32_t name;
     uint32_t timestamp;


@@ -324,6 +449,7 @@ struct section_64 {
     uint32_t flags;
     uint32_t reserved1;
     uint32_t reserved2;
     uint32_t flags;
     uint32_t reserved1;
     uint32_t reserved2;

+    uint32_t reserved3;

 } _packed;
 
 struct linkedit_data_command {
 } _packed;
 
 struct linkedit_data_command {


@@ -357,15 +483,75 @@ struct encryption_info_command {
 #define BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED      0xb0
 #define BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 0xc0
 
 #define BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED      0xb0
 #define BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 0xc0
 

-inline void get(std::streambuf &stream, void *data, size_t size) {
-    _assert(stream.sgetn(static_cast<char *>(data), size) == size);
+struct : ldid::Progress {
+    virtual void operator()(const std::string &value) const {
+    }
+
+    virtual void operator()(double value) const {
+    }
+} dummy_;
+
+struct Progression : ldid::Progress {
+    const ldid::Progress &progress_;
+    std::string name_;
+
+    Progression(const ldid::Progress &progress, const std::string &name) :
+        progress_(progress),
+        name_(name)
+    {
+    }
+
+    virtual void operator()(const std::string &value) const {
+        return progress_(name_ + " (" + value + ")");
+    }
+
+    virtual void operator()(double value) const {
+        return progress_(value);
+    }
+};
+
+static std::streamsize read(std::streambuf &stream, void *data, size_t size) {
+    auto writ(stream.sgetn(static_cast<char *>(data), size));
+    _assert(writ >= 0);
+    return writ;
+}
+
+static inline void put(std::streambuf &stream, uint8_t value) {
+    _assert(stream.sputc(value) != EOF);

 }
 
 }
 

-inline void put(std::streambuf &stream, const void *data, size_t size) {
+static inline void get(std::streambuf &stream, void *data, size_t size) {
+    _assert(read(stream, data, size) == size);
+}
+
+static inline void put(std::streambuf &stream, const void *data, size_t size) {

     _assert(stream.sputn(static_cast<const char *>(data), size) == size);
 }
 
     _assert(stream.sputn(static_cast<const char *>(data), size) == size);
 }
 

-inline void pad(std::streambuf &stream, size_t size) {
+static inline void put(std::streambuf &stream, const void *data, size_t size, const ldid::Progress &progress) {
+    progress(0);
+    for (size_t total(0); total != size;) {
+        auto writ(std::min(size - total, size_t(4096 * 4)));
+        _assert(stream.sputn(static_cast<const char *>(data) + total, writ) == writ);
+        total += writ;
+        progress(double(total) / size);
+    }
+}
+
+static inline void put(std::streambuf &stream, const std::string &data) {
+    return put(stream, data.data(), data.size());
+}
+
+static size_t most(std::streambuf &stream, void *data, size_t size) {
+    size_t total(size);
+    while (size > 0)
+        if (auto writ = read(stream, data, size))
+            size -= writ;
+        else break;
+    return total - size;
+}
+
+static inline void pad(std::streambuf &stream, size_t size) {

     char padding[size];
     memset(padding, 0, size);
     put(stream, padding, size);
     char padding[size];
     memset(padding, 0, size);
     put(stream, padding, size);


@@ -382,6 +568,156 @@ Type_ Align(Type_ value, size_t align) {
 static const uint8_t PageShift_(0x0c);
 static const uint32_t PageSize_(1 << PageShift_);
 
 static const uint8_t PageShift_(0x0c);
 static const uint32_t PageSize_(1 << PageShift_);
 

+static inline unsigned bytes(uint64_t value) {
+    return (64 - __builtin_clzll(value) + 7) / 8;
+}
+
+static void put(std::streambuf &stream, uint64_t value, size_t length) {
+    length *= 8;
+    do put(stream, uint8_t(value >> (length -= 8)));
+    while (length != 0);
+}
+
+static void der(std::streambuf &stream, uint64_t value) {
+    if (value < 128)
+        put(stream, value);
+    else {
+        unsigned length(bytes(value));
+        put(stream, 0x80 | length);
+        put(stream, value, length);
+    }
+}
+
+static std::string der(uint8_t tag, const char *value, size_t length) {
+    std::stringbuf data;
+    put(data, tag);
+    der(data, length);
+    put(data, value, length);
+    return data.str();
+}
+
+static std::string der(uint8_t tag, const char *value) {
+    return der(tag, value, strlen(value)); }
+static std::string der(uint8_t tag, const std::string &value) {
+    return der(tag, value.data(), value.size()); }
+
+template <typename Type_>
+static void der_(std::stringbuf &data, const Type_ &values) {
+    size_t size(0);
+    for (const auto &value : values)
+        size += value.size();
+    der(data, size);
+    for (const auto &value : values)
+        put(data, value);
+}
+
+static std::string der(const std::vector<std::string> &values) {
+    std::stringbuf data;
+    put(data, 0x30);
+    der_(data, values);
+    return data.str();
+}
+
+static std::string der(const std::multiset<std::string> &values) {
+    std::stringbuf data;
+    put(data, 0x31);
+    der_(data, values);
+    return data.str();
+}
+
+static std::string der(const std::pair<std::string, std::string> &value) {
+    const auto key(der(0x0c, value.first));
+    std::stringbuf data;
+    put(data, 0x30);
+    der(data, key.size() + value.second.size());
+    put(data, key);
+    put(data, value.second);
+    return data.str();
+}
+
+#ifndef LDID_NOPLIST
+static std::string der(plist_t data) {
+    switch (const auto type = plist_get_node_type(data)) {
+        case PLIST_BOOLEAN: {
+            uint8_t value(0);
+            plist_get_bool_val(data, &value);
+
+            std::stringbuf data;
+            put(data, 0x01);
+            der(data, 1);
+            put(data, value != 0 ? 1 : 0);
+            return data.str();
+        } break;
+
+        case PLIST_UINT: {
+            uint64_t value;
+            plist_get_uint_val(data, &value);
+            const auto length(bytes(value));
+
+            std::stringbuf data;
+            put(data, 0x02);
+            der(data, length);
+            put(data, value, length);
+            return data.str();
+        } break;
+
+        case PLIST_REAL: {
+            _assert(false);
+        } break;
+
+        case PLIST_DATE: {
+            _assert(false);
+        } break;
+
+        case PLIST_DATA: {
+            char *value;
+            uint64_t length;
+            plist_get_data_val(data, &value, &length);
+            _scope({ free(value); });
+            return der(0x04, value, length);
+        } break;
+
+        case PLIST_STRING: {
+            char *value;
+            plist_get_string_val(data, &value);
+            _scope({ free(value); });
+            return der(0x0c, value);
+        } break;
+
+        case PLIST_ARRAY: {
+            std::vector<std::string> values;
+            for (auto e(plist_array_get_size(data)), i(decltype(e)(0)); i != e; ++i)
+                values.push_back(der(plist_array_get_item(data, i)));
+            return der(values);
+        } break;
+
+        case PLIST_DICT: {
+            std::multiset<std::string> values;
+
+            plist_dict_iter iterator(NULL);
+            plist_dict_new_iter(data, &iterator);
+            _scope({ free(iterator); });
+
+            for (;;) {
+                char *key(NULL);
+                plist_t value(NULL);
+                plist_dict_next_item(data, iterator, &key, &value);
+                if (key == NULL)
+                    break;
+                _scope({ free(key); });
+                values.insert(der(std::make_pair(key, der(value))));
+            }
+
+            return der(values);
+        } break;
+
+        default: {
+            _assert_(false, "unsupported plist type %d", type);
+        } break;
+    }
+}
+#endif
+

 static inline uint16_t Swap_(uint16_t value) {
     return
         ((value >>  8) & 0x00ff) |
 static inline uint16_t Swap_(uint16_t value) {
     return
         ((value >>  8) & 0x00ff) |


@@ -441,9 +777,6 @@ static inline int64_t Swap(int64_t value) {
     return Swap(static_cast<uint64_t>(value));
 }
 
     return Swap(static_cast<uint64_t>(value));
 }
 

-template <typename Target_>
-class Pointer;
-

 class Swapped {
   protected:
     bool swapped_;
 class Swapped {
   protected:
     bool swapped_;


@@ -528,6 +861,7 @@ class MachHeader :
         _assert(
             Swap(mach_header_->filetype) == MH_EXECUTE ||
             Swap(mach_header_->filetype) == MH_DYLIB ||
         _assert(
             Swap(mach_header_->filetype) == MH_EXECUTE ||
             Swap(mach_header_->filetype) == MH_DYLIB ||

+            Swap(mach_header_->filetype) == MH_DYLINKER ||

             Swap(mach_header_->filetype) == MH_BUNDLE
         );
     }
             Swap(mach_header_->filetype) == MH_BUNDLE
         );
     }


@@ -568,85 +902,30 @@ class MachHeader :
         return load_commands;
     }
 
         return load_commands;
     }
 

-    std::vector<segment_command *> GetSegments(const char *segment_name) const {
-        std::vector<struct segment_command *> segment_commands;
-
-        _foreach (load_command, GetLoadCommands()) {
-            if (Swap(load_command->cmd) == LC_SEGMENT) {
-                segment_command *segment_command = reinterpret_cast<struct segment_command *>(load_command);
-                if (strncmp(segment_command->segname, segment_name, 16) == 0)
-                    segment_commands.push_back(segment_command);
-            }
-        }
-
-        return segment_commands;
-    }
-
-    std::vector<segment_command_64 *> GetSegments64(const char *segment_name) const {
-        std::vector<struct segment_command_64 *> segment_commands;
-
-        _foreach (load_command, GetLoadCommands()) {
-            if (Swap(load_command->cmd) == LC_SEGMENT_64) {
-                segment_command_64 *segment_command = reinterpret_cast<struct segment_command_64 *>(load_command);
-                if (strncmp(segment_command->segname, segment_name, 16) == 0)
-                    segment_commands.push_back(segment_command);
-            }
-        }
-
-        return segment_commands;
-    }
-
-    std::vector<section *> GetSections(const char *segment_name, const char *section_name) const {
-        std::vector<section *> sections;
-
-        _foreach (segment, GetSegments(segment_name)) {
-            section *section = (struct section *) (segment + 1);
-
-            uint32_t sect;
-            for (sect = 0; sect != Swap(segment->nsects); ++sect) {
-                if (strncmp(section->sectname, section_name, 16) == 0)
-                    sections.push_back(section);
-                ++section;
-            }
-        }
-
-        return sections;
-    }
+    void ForSection(const ldid::Functor<void (const char *, const char *, void *, size_t)> &code) const {
+        _foreach (load_command, GetLoadCommands())
+            switch (Swap(load_command->cmd)) {
+                case LC_SEGMENT: {
+                    auto segment(reinterpret_cast<struct segment_command *>(load_command));
+                    code(segment->segname, NULL, GetOffset<void>(segment->fileoff), segment->filesize);
+                    auto section(reinterpret_cast<struct section *>(segment + 1));
+                    for (uint32_t i(0), e(Swap(segment->nsects)); i != e; ++i, ++section)
+                        code(segment->segname, section->sectname, GetOffset<void>(segment->fileoff + section->offset), section->size);
+                } break;

 
 

-    template <typename Target_>
-    Pointer<Target_> GetPointer(uint32_t address, const char *segment_name = NULL) const {
-        load_command *load_command = (struct load_command *) (mach_header_ + 1);
-        uint32_t cmd;
-
-        for (cmd = 0; cmd != Swap(mach_header_->ncmds); ++cmd) {
-            if (Swap(load_command->cmd) == LC_SEGMENT) {
-                segment_command *segment_command = (struct segment_command *) load_command;
-                if (segment_name != NULL && strncmp(segment_command->segname, segment_name, 16) != 0)
-                    goto next_command;
-
-                section *sections = (struct section *) (segment_command + 1);
-
-                uint32_t sect;
-                for (sect = 0; sect != Swap(segment_command->nsects); ++sect) {
-                    section *section = &sections[sect];
-                    //printf("%s %u %p %p %u\n", segment_command->segname, sect, address, section->addr, section->size);
-                    if (address >= Swap(section->addr) && address < Swap(section->addr) + Swap(section->size)) {
-                        //printf("0x%.8x %s\n", address, segment_command->segname);
-                        return Pointer<Target_>(this, reinterpret_cast<Target_ *>(address - Swap(section->addr) + Swap(section->offset) + (char *) mach_header_));
-                    }
-                }
+                case LC_SEGMENT_64: {
+                    auto segment(reinterpret_cast<struct segment_command_64 *>(load_command));
+                    code(segment->segname, NULL, GetOffset<void>(segment->fileoff), segment->filesize);
+                    auto section(reinterpret_cast<struct section_64 *>(segment + 1));
+                    for (uint32_t i(0), e(Swap(segment->nsects)); i != e; ++i, ++section)
+                        code(segment->segname, section->sectname, GetOffset<void>(segment->fileoff + section->offset), section->size);
+                } break;

             }
             }

-
-          next_command:
-            load_command = (struct load_command *) ((char *) load_command + Swap(load_command->cmdsize));
-        }
-
-        return Pointer<Target_>(this);

     }
 
     template <typename Target_>
     }
 
     template <typename Target_>

-    Pointer<Target_> GetOffset(uint32_t offset) {
-        return Pointer<Target_>(this, reinterpret_cast<Target_ *>(offset + (uint8_t *) mach_header_));
+    Target_ *GetOffset(uint32_t offset) const {
+        return reinterpret_cast<Target_ *>(offset + (uint8_t *) mach_header_);

     }
 };
 
     }
 };
 


@@ -717,44 +996,13 @@ class FatHeader :
     }
 };
 
     }
 };
 

-template <typename Target_>
-class Pointer {
-  private:
-    const MachHeader *framework_;
-    const Target_ *pointer_;
-
-  public:
-    Pointer(const MachHeader *framework = NULL, const Target_ *pointer = NULL) :
-        framework_(framework),
-        pointer_(pointer)
-    {
-    }
-
-    operator const Target_ *() const {
-        return pointer_;
-    }
-
-    const Target_ *operator ->() const {
-        return pointer_;
-    }
-
-    Pointer<Target_> &operator ++() {
-        ++pointer_;
-        return *this;
-    }
-
-    template <typename Value_>
-    Value_ Swap(Value_ value) {
-        return framework_->Swap(value);
-    }
-};
-

 #define CSMAGIC_REQUIREMENT            uint32_t(0xfade0c00)
 #define CSMAGIC_REQUIREMENTS           uint32_t(0xfade0c01)
 #define CSMAGIC_CODEDIRECTORY          uint32_t(0xfade0c02)
 #define CSMAGIC_EMBEDDED_SIGNATURE     uint32_t(0xfade0cc0)
 #define CSMAGIC_EMBEDDED_SIGNATURE_OLD uint32_t(0xfade0b02)
 #define CSMAGIC_EMBEDDED_ENTITLEMENTS  uint32_t(0xfade7171)
 #define CSMAGIC_REQUIREMENT            uint32_t(0xfade0c00)
 #define CSMAGIC_REQUIREMENTS           uint32_t(0xfade0c01)
 #define CSMAGIC_CODEDIRECTORY          uint32_t(0xfade0c02)
 #define CSMAGIC_EMBEDDED_SIGNATURE     uint32_t(0xfade0cc0)
 #define CSMAGIC_EMBEDDED_SIGNATURE_OLD uint32_t(0xfade0b02)
 #define CSMAGIC_EMBEDDED_ENTITLEMENTS  uint32_t(0xfade7171)

+#define CSMAGIC_EMBEDDED_DERFORMAT     uint32_t(0xfade7172) // name?

 #define CSMAGIC_DETACHED_SIGNATURE     uint32_t(0xfade0cc1)
 #define CSMAGIC_BLOBWRAPPER            uint32_t(0xfade0b01)
 
 #define CSMAGIC_DETACHED_SIGNATURE     uint32_t(0xfade0cc1)
 #define CSMAGIC_BLOBWRAPPER            uint32_t(0xfade0b01)
 


@@ -764,10 +1012,36 @@ class Pointer {
 #define CSSLOT_RESOURCEDIR   uint32_t(0x00003)
 #define CSSLOT_APPLICATION   uint32_t(0x00004)
 #define CSSLOT_ENTITLEMENTS  uint32_t(0x00005)
 #define CSSLOT_RESOURCEDIR   uint32_t(0x00003)
 #define CSSLOT_APPLICATION   uint32_t(0x00004)
 #define CSSLOT_ENTITLEMENTS  uint32_t(0x00005)

+#define CSSLOT_REPSPECIFIC   uint32_t(0x00006) // name?
+#define CSSLOT_DERFORMAT     uint32_t(0x00007) // name?
+#define CSSLOT_ALTERNATE     uint32_t(0x01000)

 
 #define CSSLOT_SIGNATURESLOT uint32_t(0x10000)
 
 
 #define CSSLOT_SIGNATURESLOT uint32_t(0x10000)
 

-#define CS_HASHTYPE_SHA1 1
+#define CS_HASHTYPE_SHA160_160 1
+#define CS_HASHTYPE_SHA256_256 2
+#define CS_HASHTYPE_SHA256_160 3
+#define CS_HASHTYPE_SHA386_386 4
+
+#if 0
+#define CS_EXECSEG_MAIN_BINARY     0x001 /* executable segment denotes main binary */
+#define CS_EXECSEG_ALLOW_UNSIGNED  0x010 /* allow unsigned pages (for debugging) */
+#define CS_EXECSEG_DEBUGGER        0x020 /* main binary is debugger */
+#define CS_EXECSEG_JIT             0x040 /* JIT enabled */
+#define CS_EXECSEG_SKIP_LV         0x080 /* skip library validation */
+#define CS_EXECSEG_CAN_LOAD_CDHASH 0x100 /* can bless cdhash for execution */
+#define CS_EXECSEG_CAN_EXEC_CDHASH 0x200 /* can execute blessed cdhash */
+#else
+enum SecCodeExecSegFlags {
+    kSecCodeExecSegMainBinary = 0x001,
+    kSecCodeExecSegAllowUnsigned = 0x010,
+    kSecCodeExecSegDebugger = 0x020,
+    kSecCodeExecSegJit = 0x040,
+    kSecCodeExecSegSkipLibraryVal = 0x080,
+    kSecCodeExecSegCanLoadCdHash = 0x100,
+    kSecCodeExecSegCanExecCdHash = 0x100,
+};
+#endif

 
 struct BlobIndex {
     uint32_t type;
 
 struct BlobIndex {
     uint32_t type;


@@ -795,36 +1069,220 @@ struct CodeDirectory {
     uint32_t codeLimit;
     uint8_t hashSize;
     uint8_t hashType;
     uint32_t codeLimit;
     uint8_t hashSize;
     uint8_t hashType;

-    uint8_t spare1;
+    uint8_t platform;

     uint8_t pageSize;
     uint32_t spare2;
     uint8_t pageSize;
     uint32_t spare2;

+    uint32_t scatterOffset;
+    uint32_t teamIDOffset;
+    uint32_t spare3;
+    uint64_t codeLimit64;
+    uint64_t execSegBase;
+    uint64_t execSegLimit;
+    uint64_t execSegFlags;
+#if 0 // version = 0x20500
+    uint32_t runtime;
+    uint32_t preEncryptOffset;
+#endif
+#if 0 // version = 0x20600
+    uint8_t linkageHashType;
+    uint8_t linkageTruncated;
+    uint16_t spare4;
+    uint32_t linkageOffset;
+    uint32_t linkageSize;
+#endif

 } _packed;
 
 } _packed;
 

+enum CodeSignatureFlags {
+    kSecCodeSignatureHost = 0x0001,
+    kSecCodeSignatureAdhoc = 0x0002,
+    kSecCodeSignatureForceHard = 0x0100,
+    kSecCodeSignatureForceKill = 0x0200,
+    kSecCodeSignatureForceExpiration = 0x0400,
+    kSecCodeSignatureRestrict = 0x0800,
+    kSecCodeSignatureEnforcement = 0x1000,
+    kSecCodeSignatureLibraryValidation = 0x2000,
+    kSecCodeSignatureRuntime = 0x10000,
+};
+
+enum Kind : uint32_t {
+    exprForm = 1, // prefix expr form
+};
+
+enum ExprOp : uint32_t {
+    opFalse, // unconditionally false
+    opTrue, // unconditionally true
+    opIdent, // match canonical code [string]
+    opAppleAnchor, // signed by Apple as Apple's product
+    opAnchorHash, // match anchor [cert hash]
+    opInfoKeyValue, // *legacy* - use opInfoKeyField [key; value]
+    opAnd, // binary prefix expr AND expr [expr; expr]
+    opOr, // binary prefix expr OR expr [expr; expr]
+    opCDHash, // match hash of CodeDirectory directly [cd hash]
+    opNot, // logical inverse [expr]
+    opInfoKeyField, // Info.plist key field [string; match suffix]
+    opCertField, // Certificate field [cert index; field name; match suffix]
+    opTrustedCert, // require trust settings to approve one particular cert [cert index]
+    opTrustedCerts, // require trust settings to approve the cert chain
+    opCertGeneric, // Certificate component by OID [cert index; oid; match suffix]
+    opAppleGenericAnchor, // signed by Apple in any capacity
+    opEntitlementField, // entitlement dictionary field [string; match suffix]
+    opCertPolicy, // Certificate policy by OID [cert index; oid; match suffix]
+    opNamedAnchor, // named anchor type
+    opNamedCode, // named subroutine
+    opPlatform, // platform constraint [integer]
+    exprOpCount // (total opcode count in use)
+};
+
+enum MatchOperation {
+    matchExists, // anything but explicit "false" - no value stored
+    matchEqual, // equal (CFEqual)
+    matchContains, // partial match (substring)
+    matchBeginsWith, // partial match (initial substring)
+    matchEndsWith, // partial match (terminal substring)
+    matchLessThan, // less than (string with numeric comparison)
+    matchGreaterThan, // greater than (string with numeric comparison)
+    matchLessEqual, // less or equal (string with numeric comparison)
+    matchGreaterEqual, // greater or equal (string with numeric comparison)
+};
+
+#define OID_ISO_MEMBER 42
+#define OID_US OID_ISO_MEMBER, 134, 72
+#define APPLE_OID OID_US, 0x86, 0xf7, 0x63
+#define APPLE_ADS_OID APPLE_OID, 0x64
+#define APPLE_EXTENSION_OID APPLE_ADS_OID, 6
+
+#ifndef LDID_NOFLAGT

 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);

+#endif
+
+struct Algorithm {
+    size_t size_;
+    uint8_t type_;
+    int nid_;
+
+    Algorithm(size_t size, uint8_t type, int nid) :
+        size_(size),
+        type_(type),
+        nid_(nid)
+    {
+    }
+
+    virtual const uint8_t *operator [](const ldid::Hash &hash) const = 0;
+
+    virtual void operator ()(uint8_t *hash, const void *data, size_t size) const = 0;
+    virtual void operator ()(ldid::Hash &hash, const void *data, size_t size) const = 0;
+    virtual void operator ()(std::vector<char> &hash, const void *data, size_t size) const = 0;
+
+    virtual const char *name() = 0;
+};
+
+struct AlgorithmSHA1 :
+    Algorithm
+{
+    AlgorithmSHA1() :
+        Algorithm(LDID_SHA1_DIGEST_LENGTH, CS_HASHTYPE_SHA160_160, NID_sha1)
+    {
+    }
+
+    virtual const uint8_t *operator [](const ldid::Hash &hash) const {
+        return hash.sha1_;
+    }
+
+    void operator ()(uint8_t *hash, const void *data, size_t size) const {
+        LDID_SHA1(static_cast<const uint8_t *>(data), size, hash);
+    }

 
 

-static void sha1(uint8_t *hash, const void *data, size_t size) {
-    SHA1(static_cast<const uint8_t *>(data), size, hash);
+    void operator ()(ldid::Hash &hash, const void *data, size_t size) const {
+        return operator()(hash.sha1_, data, size);
+    }
+
+    void operator ()(std::vector<char> &hash, const void *data, size_t size) const {
+        hash.resize(LDID_SHA1_DIGEST_LENGTH);
+        return operator ()(reinterpret_cast<uint8_t *>(hash.data()), data, size);
+    }
+
+    virtual const char *name() {
+        return "sha1";
+    }
+};
+
+struct AlgorithmSHA256 :
+    Algorithm
+{
+    AlgorithmSHA256() :
+        Algorithm(LDID_SHA256_DIGEST_LENGTH, CS_HASHTYPE_SHA256_256, NID_sha256)
+    {
+    }
+
+    virtual const uint8_t *operator [](const ldid::Hash &hash) const {
+        return hash.sha256_;
+    }
+
+    void operator ()(uint8_t *hash, const void *data, size_t size) const {
+        LDID_SHA256(static_cast<const uint8_t *>(data), size, hash);
+    }
+
+    void operator ()(ldid::Hash &hash, const void *data, size_t size) const {
+        return operator()(hash.sha256_, data, size);
+    }
+
+    void operator ()(std::vector<char> &hash, const void *data, size_t size) const {
+        hash.resize(LDID_SHA256_DIGEST_LENGTH);
+        return operator ()(reinterpret_cast<uint8_t *>(hash.data()), data, size);
+    }
+
+    virtual const char *name() {
+        return "sha256";
+    }
+};
+
+static bool do_sha1(true);
+static bool do_sha256(true);
+
+static const std::vector<Algorithm *> &GetAlgorithms() {
+    static AlgorithmSHA1 sha1;
+    static AlgorithmSHA256 sha256;
+
+    static std::vector<Algorithm *> algorithms;
+    if (algorithms.empty()) {
+        if (do_sha1)
+            algorithms.push_back(&sha1);
+        if (do_sha256)
+            algorithms.push_back(&sha256);
+    }
+
+    return algorithms;

 }
 
 }
 

+struct Baton {
+    std::string entitlements_;
+    std::string derformat_;
+};
+

 struct CodesignAllocation {
     FatMachHeader mach_header_;
 struct CodesignAllocation {
     FatMachHeader mach_header_;

-    uint32_t offset_;
+    uint64_t offset_;

     uint32_t size_;
     uint32_t size_;

-    uint32_t limit_;
+    uint64_t limit_;

     uint32_t alloc_;
     uint32_t align_;
     uint32_t alloc_;
     uint32_t align_;

+    const char *arch_;
+    Baton baton_;

 
 

-    CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t align) :
+    CodesignAllocation(FatMachHeader mach_header, size_t offset, size_t size, size_t limit, size_t alloc, size_t align, const char *arch, const Baton &baton) :

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

-        align_(align)
+        align_(align),
+        arch_(arch),
+        baton_(baton)

     {
     }
 };
 
     {
     }
 };
 

+#ifndef LDID_NOTOOLS

 class File {
   private:
     int file_;
 class File {
   private:
     int file_;


@@ -871,13 +1329,13 @@ 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);


@@ -891,10 +1349,10 @@ class Map {
         return data_ == NULL;
     }
 
         return data_ == NULL;
     }
 

-    void open(const char *path, int oflag, int pflag, int mflag) {
+    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;
         int file(file_.file());
 
         struct stat stat;


@@ -904,7 +1362,7 @@ class Map {
         data_ = _syscall(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


@@ -923,11 +1381,49 @@ class Map {
         return std::string(static_cast<char *>(data_), size_);
     }
 };
         return std::string(static_cast<char *>(data_), size_);
     }
 };

+#endif

 
 namespace ldid {
 
 
 namespace ldid {
 

-static void Allocate(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(idata, isize);
+#ifndef LDID_NOPLIST
+static plist_t plist(const std::string &data);
+#endif
+
+void Analyze(const MachHeader &mach_header, const Functor<void (const char *data, size_t size)> &entitle) {
+    _foreach (load_command, mach_header.GetLoadCommands())
+        if (mach_header.Swap(load_command->cmd) == LC_CODE_SIGNATURE) {
+            auto signature(reinterpret_cast<struct linkedit_data_command *>(load_command));
+            auto offset(mach_header.Swap(signature->dataoff));
+            auto pointer(reinterpret_cast<uint8_t *>(mach_header.GetBase()) + offset);
+            auto super(reinterpret_cast<struct SuperBlob *>(pointer));
+
+            for (size_t index(0); index != Swap(super->count); ++index)
+                if (Swap(super->index[index].type) == CSSLOT_ENTITLEMENTS) {
+                    auto begin(Swap(super->index[index].offset));
+                    auto blob(reinterpret_cast<struct Blob *>(pointer + begin));
+                    auto writ(Swap(blob->length) - sizeof(*blob));
+                    entitle(reinterpret_cast<char *>(blob + 1), writ);
+                }
+        }
+}
+
+std::string Analyze(const void *data, size_t size) {
+    std::string entitlements;
+
+    FatHeader fat_header(const_cast<void *>(data), size);
+    _foreach (mach_header, fat_header.GetMachHeaders())
+        Analyze(mach_header, fun([&](const char *data, size_t size) {
+            if (entitlements.empty())
+                entitlements.assign(data, size);
+            else
+                _assert(entitlements.compare(0, entitlements.size(), data, size) == 0);
+        }));
+
+    return entitlements;
+}
+
+static void Allocate(const void *idata, size_t isize, std::streambuf &output, const Functor<size_t (const MachHeader &, Baton &, size_t)> &allocate, const Functor<size_t (const MachHeader &, const Baton &, std::streambuf &output, size_t, size_t, size_t, const std::string &, const char *, const Progress &)> &save, const Progress &progress) {
+    FatHeader source(const_cast<void *>(idata), isize);

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


@@ -957,22 +1453,66 @@ static void Allocate(void *idata, size_t isize, std::streambuf &output, const Fu
 
         if (symtab != NULL) {
             auto end(mach_header.Swap(symtab->stroff) + mach_header.Swap(symtab->strsize));
 
         if (symtab != NULL) {
             auto end(mach_header.Swap(symtab->stroff) + mach_header.Swap(symtab->strsize));

-            _assert(end <= size);
-            _assert(end >= size - 0x10);
-            size = end;
+            if (symtab->stroff != 0 || symtab->strsize != 0) {
+                _assert(end <= size);
+                _assert(end >= size - 0x10);
+                size = end;
+            }

         }
 
         }
 

-        size_t alloc(allocate(size));
+        Baton baton;
+        size_t alloc(allocate(mach_header, baton, size));

 
         auto *fat_arch(mach_header.GetFatArch());
 
         auto *fat_arch(mach_header.GetFatArch());

-        uint32_t align(fat_arch == NULL ? 0 : source.Swap(fat_arch->align));
+        uint32_t align;
+
+        if (fat_arch != NULL)
+            align = source.Swap(fat_arch->align);
+        else switch (mach_header.GetCPUType()) {
+            case CPU_TYPE_POWERPC:
+            case CPU_TYPE_POWERPC64:
+            case CPU_TYPE_X86:
+            case CPU_TYPE_X86_64:
+                align = 0xc;
+                break;
+            case CPU_TYPE_ARM:
+            case CPU_TYPE_ARM64:
+                align = 0xe;
+                break;
+            default:
+                align = 0x0;
+                break;
+        }
+
+        const char *arch(NULL);
+        switch (mach_header.GetCPUType()) {
+            case CPU_TYPE_POWERPC:
+                arch = "ppc";
+                break;
+            case CPU_TYPE_POWERPC64:
+                arch = "ppc64";
+                break;
+            case CPU_TYPE_X86:
+                arch = "i386";
+                break;
+            case CPU_TYPE_X86_64:
+                arch = "x86_64";
+                break;
+            case CPU_TYPE_ARM:
+                arch = "arm";
+                break;
+            case CPU_TYPE_ARM64:
+                arch = "arm64";
+                break;
+        }
+

         offset = Align(offset, 1 << align);
 
         uint32_t limit(size);
         if (alloc != 0)
             limit = Align(limit, 0x10);
 
         offset = Align(offset, 1 << align);
 
         uint32_t limit(size);
         if (alloc != 0)
             limit = Align(limit, 0x10);
 

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

         offset += size + alloc;
         offset = Align(offset, 0x10);
     }
         offset += size + alloc;
         offset = Align(offset, 0x10);
     }


@@ -986,14 +1526,27 @@ static void Allocate(void *idata, size_t isize, std::streambuf &output, const Fu
         put(output, &fat_header, sizeof(fat_header));
         position += sizeof(fat_header);
 
         put(output, &fat_header, sizeof(fat_header));
         position += sizeof(fat_header);
 

+        // XXX: support fat_arch_64 (not in my toolchain)
+        // probably use C++14 generic lambda (not in my toolchain)
+
+        _assert_(![&]() {
+            _foreach (allocation, allocations) {
+                const auto offset(allocation.offset_);
+                const auto size(allocation.limit_ + allocation.alloc_);
+                if (uint32_t(offset) != offset || uint32_t(size) != size)
+                    return true;
+            }
+            return false;
+        }(), "FAT slice >=4GiB not currently supported");
+

         _foreach (allocation, allocations) {
             auto &mach_header(allocation.mach_header_);
 
             fat_arch fat_arch;
             fat_arch.cputype = Swap(mach_header->cputype);
             fat_arch.cpusubtype = Swap(mach_header->cpusubtype);
         _foreach (allocation, allocations) {
             auto &mach_header(allocation.mach_header_);
 
             fat_arch fat_arch;
             fat_arch.cputype = Swap(mach_header->cputype);
             fat_arch.cpusubtype = Swap(mach_header->cpusubtype);

-            fat_arch.offset = Swap(allocation.offset_);
-            fat_arch.size = Swap(allocation.limit_ + allocation.alloc_);
+            fat_arch.offset = Swap(uint32_t(allocation.offset_));
+            fat_arch.size = Swap(uint32_t(allocation.limit_ + allocation.alloc_));

             fat_arch.align = Swap(allocation.align_);
             put(output, &fat_arch, sizeof(fat_arch));
             position += sizeof(fat_arch);
             fat_arch.align = Swap(allocation.align_);
             put(output, &fat_arch, sizeof(fat_arch));
             position += sizeof(fat_arch);


@@ -1001,11 +1554,15 @@ static void Allocate(void *idata, size_t isize, std::streambuf &output, const Fu
     }
 
     _foreach (allocation, allocations) {
     }
 
     _foreach (allocation, allocations) {

+        progress(allocation.arch_);

         auto &mach_header(allocation.mach_header_);
 
         pad(output, allocation.offset_ - position);
         position = allocation.offset_;
 
         auto &mach_header(allocation.mach_header_);
 
         pad(output, allocation.offset_ - position);
         position = allocation.offset_;
 

+        size_t left(-1);
+        size_t right(0);
+

         std::vector<std::string> commands;
 
         _foreach (load_command, mach_header.GetLoadCommands()) {
         std::vector<std::string> commands;
 
         _foreach (load_command, mach_header.GetLoadCommands()) {


@@ -1016,22 +1573,44 @@ static void Allocate(void *idata, size_t isize, std::streambuf &output, const Fu
                     continue;
                 break;
 
                     continue;
                 break;
 

+                // XXX: this is getting ridiculous: provide a better abstraction
+

                 case LC_SEGMENT: {
                     auto segment_command(reinterpret_cast<struct segment_command *>(&copy[0]));
                 case LC_SEGMENT: {
                     auto segment_command(reinterpret_cast<struct segment_command *>(&copy[0]));

-                    if (strncmp(segment_command->segname, "__LINKEDIT", 16) != 0)
-                        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, PageSize_);
+
+                    if ((segment_command->initprot & 04) != 0) {
+                        auto begin(mach_header.Swap(segment_command->fileoff));
+                        auto end(begin + mach_header.Swap(segment_command->filesize));
+                        if (left > begin)
+                            left = begin;
+                        if (right < end)
+                            right = end;
+                    }
+
+                    if (strncmp(segment_command->segname, "__LINKEDIT", 16) == 0) {
+                        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, 1 << allocation.align_);
+                    }

                 } break;
 
                 case LC_SEGMENT_64: {
                     auto segment_command(reinterpret_cast<struct segment_command_64 *>(&copy[0]));
                 } break;
 
                 case LC_SEGMENT_64: {
                     auto segment_command(reinterpret_cast<struct segment_command_64 *>(&copy[0]));

-                    if (strncmp(segment_command->segname, "__LINKEDIT", 16) != 0)
-                        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, PageSize_);
+
+                    if ((segment_command->initprot & 04) != 0) {
+                        auto begin(mach_header.Swap(segment_command->fileoff));
+                        auto end(begin + mach_header.Swap(segment_command->filesize));
+                        if (left > begin)
+                            left = begin;
+                        if (right < end)
+                            right = end;
+                    }
+
+                    if (strncmp(segment_command->segname, "__LINKEDIT", 16) == 0) {
+                        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, 1 << allocation.align_);
+                    }

                 } break;
             }
 
                 } break;
             }
 


@@ -1087,15 +1666,17 @@ static void Allocate(void *idata, size_t isize, std::streambuf &output, const Fu
         std::string overlap(altern.str());
         overlap.append(top + overlap.size(), Align(overlap.size(), 0x1000) - overlap.size());
 
         std::string overlap(altern.str());
         overlap.append(top + overlap.size(), Align(overlap.size(), 0x1000) - overlap.size());
 

-        put(output, top + (position - begin), allocation.size_ - (position - begin));
+        put(output, top + (position - begin), allocation.size_ - (position - begin), progress);

         position = begin + allocation.size_;
 
         pad(output, allocation.limit_ - allocation.size_);
         position += allocation.limit_ - allocation.size_;
 
         position = begin + allocation.size_;
 
         pad(output, allocation.limit_ - allocation.size_);
         position += allocation.limit_ - allocation.size_;
 

-        size_t saved(save(output, allocation.limit_, overlap, top));
+        size_t saved(save(mach_header, allocation.baton_, output, allocation.limit_, left, right, overlap, top, progress));

         if (allocation.alloc_ > saved)
             pad(output, allocation.alloc_ - saved);
         if (allocation.alloc_ > saved)
             pad(output, allocation.alloc_ - saved);

+        else
+            _assert(allocation.alloc_ == saved);

         position += allocation.alloc_;
     }
 }
         position += allocation.alloc_;
     }
 }


@@ -1109,13 +1690,15 @@ static void insert(Blobs &blobs, uint32_t slot, const std::stringbuf &buffer) {
     std::swap(blobs[slot], value);
 }
 
     std::swap(blobs[slot], value);
 }
 

-static void insert(Blobs &blobs, uint32_t slot, uint32_t magic, const std::stringbuf &buffer) {
+static const std::string &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));
     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);
+    auto &save(blobs[slot]);
+    std::swap(save, value);
+    return save;

 }
 
 static size_t put(std::streambuf &output, uint32_t magic, const Blobs &blobs) {
 }
 
 static size_t put(std::streambuf &output, uint32_t magic, const Blobs &blobs) {


@@ -1145,6 +1728,7 @@ static size_t put(std::streambuf &output, uint32_t magic, const Blobs &blobs) {
     return offset;
 }
 
     return offset;
 }
 

+#ifndef LDID_NOSMIME

 class Buffer {
   private:
     BIO *bio_;
 class Buffer {
   private:
     BIO *bio_;


@@ -1206,8 +1790,13 @@ class Stuff {
     {
         _assert(value_ != NULL);
         _assert(PKCS12_parse(value_, "", &key_, &cert_, &ca_) != 0);
     {
         _assert(value_ != NULL);
         _assert(PKCS12_parse(value_, "", &key_, &cert_, &ca_) != 0);

+

         _assert(key_ != NULL);
         _assert(cert_ != NULL);
         _assert(key_ != NULL);
         _assert(cert_ != NULL);

+
+        if (ca_ == NULL)
+            ca_ = sk_X509_new_null();
+        _assert(ca_ != NULL);

     }
 
     Stuff(const std::string &data) :
     }
 
     Stuff(const std::string &data) :


@@ -1239,166 +1828,1397 @@ class Stuff {
     }
 };
 
     }
 };
 

-class Signature {
+class Octet {

   private:
   private:

-    PKCS7 *value_;
+    ASN1_OCTET_STRING *value_;

 
   public:
 
   public:

-    Signature(const Stuff &stuff, const Buffer &data) :
-        value_(PKCS7_sign(stuff, stuff, stuff, data, PKCS7_BINARY | PKCS7_DETACHED))
+    Octet() :
+        value_(ASN1_OCTET_STRING_new())

     {
         _assert(value_ != NULL);
     }
 
     {
         _assert(value_ != NULL);
     }
 

-    ~Signature() {
-        PKCS7_free(value_);
+    Octet(const std::string &value) :
+        Octet()
+    {
+        _assert(ASN1_STRING_set(value_, value.data(), value.size()));

     }
 
     }
 

-    operator PKCS7 *() const {
+    Octet(const uint8_t *data, size_t size) :
+        Octet()
+    {
+        _assert(ASN1_STRING_set(value_, data, size));
+    }
+
+    Octet(const Octet &value) = delete;
+
+    ~Octet() {
+        if (value_ != NULL)
+            ASN1_OCTET_STRING_free(value_);
+    }
+
+    void release() {
+        value_ = NULL;
+    }
+
+    operator ASN1_OCTET_STRING *() const {

         return value_;
     }
 };
 
         return value_;
     }
 };
 

-namespace ldid {
+typedef struct {
+    ASN1_OBJECT *algorithm;
+    ASN1_OCTET_STRING *value;
+} APPLE_CDHASH;

 
 

-void Sign(void *idata, size_t isize, std::streambuf &output, const std::string &name, 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));
+DECLARE_ASN1_FUNCTIONS(APPLE_CDHASH)

 
 

-        uint32_t special(0);
+ASN1_NDEF_SEQUENCE(APPLE_CDHASH) = {
+    ASN1_SIMPLE(APPLE_CDHASH, algorithm, ASN1_OBJECT),
+    ASN1_SIMPLE(APPLE_CDHASH, value, ASN1_OCTET_STRING),
+} ASN1_NDEF_SEQUENCE_END(APPLE_CDHASH)

 
 

-        special = std::max(special, CSSLOT_REQUIREMENTS);
-        alloc += sizeof(struct BlobIndex);
-        alloc += 0xc;
+IMPLEMENT_ASN1_FUNCTIONS(APPLE_CDHASH)

 
 

-        if (!entitlements.empty()) {
-            special = std::max(special, CSSLOT_ENTITLEMENTS);
-            alloc += sizeof(struct BlobIndex);
-            alloc += sizeof(struct Blob);
-            alloc += entitlements.size();
+typedef struct {
+    ASN1_OBJECT *object;
+    STACK_OF(APPLE_CDHASH) *cdhashes;
+} APPLE_CDATTR;
+
+DECLARE_ASN1_FUNCTIONS(APPLE_CDATTR)
+
+ASN1_NDEF_SEQUENCE(APPLE_CDATTR) = {
+    ASN1_SIMPLE(APPLE_CDATTR, object, ASN1_OBJECT),
+    ASN1_SET_OF(APPLE_CDATTR, cdhashes, APPLE_CDHASH),
+} ASN1_NDEF_SEQUENCE_END(APPLE_CDATTR)
+
+IMPLEMENT_ASN1_FUNCTIONS(APPLE_CDATTR)
+
+class Signature {
+  private:
+    PKCS7 *value_;
+
+  public:
+    Signature(const Stuff &stuff, const Buffer &data, const std::string &xml, const ldid::Hash &hash) {
+        value_ = PKCS7_new();
+        _assert(value_ != NULL);
+
+        _assert(PKCS7_set_type(value_, NID_pkcs7_signed));
+        _assert(PKCS7_content_new(value_, NID_pkcs7_data));
+
+        STACK_OF(X509) *certs(stuff);
+        for (unsigned i(0), e(sk_X509_num(certs)); i != e; i++)
+            _assert(PKCS7_add_certificate(value_, sk_X509_value(certs, e - i - 1)));
+
+        STACK_OF(X509_ATTRIBUTE) *attributes(sk_X509_ATTRIBUTE_new_null());
+        _assert(attributes != NULL);
+        _scope({ sk_X509_ATTRIBUTE_pop_free(attributes, X509_ATTRIBUTE_free); });
+
+
+        // XXX: this is the same as PKCS7_sign_add_signer(value_, stuff, stuff, NULL, PKCS7_NOSMIMECAP)
+        _assert(X509_check_private_key(stuff, stuff));
+        auto info(PKCS7_add_signature(value_, stuff, stuff, EVP_sha1()));
+        _assert(info != NULL);
+        _assert(PKCS7_add_certificate(value_, stuff));
+
+        {
+            auto attribute(X509_ATTRIBUTE_create(NID_pkcs9_contentType, V_ASN1_OBJECT, OBJ_nid2obj(NID_pkcs7_data)));
+            _assert(attribute != NULL);
+            _assert(sk_X509_ATTRIBUTE_push(attributes, attribute) != 0);
+        }
+
+        {
+            auto cdattr(APPLE_CDATTR_new());
+            _assert(cdattr != NULL);
+            _scope({ APPLE_CDATTR_free(cdattr); });
+
+            static auto nid(OBJ_create("1.2.840.113635.100.9.2", "apple-2", "Apple 2"));
+            cdattr->object = OBJ_nid2obj(nid);
+
+            for (Algorithm *pointer : GetAlgorithms()) {
+                Algorithm &algorithm(*pointer);
+                APPLE_CDHASH *cdhash(APPLE_CDHASH_new());
+                _assert(cdhash != NULL);
+                _assert(sk_push((_STACK *) cdattr->cdhashes, cdhash) != 0);
+                cdhash->algorithm = OBJ_nid2obj(algorithm.nid_);
+                Octet string(algorithm[hash], algorithm.size_);
+                cdhash->value = string;
+                string.release();
+            }
+
+            // in e20b57270dece66ce2c68aeb5d14dd6d9f3c5d68 OpenSSL removed a "hack"
+            // in the process, they introduced a useful bug in X509_ATTRIBUTE_set1_data
+            // however, I don't want to rely on that or detect the bypass before it
+            // so, instead, I create my own compatible attribute and re-serialize it :/
+
+            ASN1_STRING *seq(ASN1_STRING_new());
+            _assert(seq != NULL);
+            _scope({ ASN1_STRING_free(seq); });
+            seq->length = ASN1_item_i2d((ASN1_VALUE *) cdattr, &seq->data, ASN1_ITEM_rptr(APPLE_CDATTR));
+
+            X509_ATTRIBUTE *attribute(NULL);
+            const unsigned char *data(seq->data);
+            _assert(d2i_X509_ATTRIBUTE(&attribute, &data, seq->length) != 0);
+            _assert(attribute != NULL);
+            _assert(sk_X509_ATTRIBUTE_push(attributes, attribute) != 0);
+        }
+
+        {
+            // XXX: move the "cdhashes" plist code to here and remove xml argument
+
+            Octet string(xml);
+            static auto nid(OBJ_create("1.2.840.113635.100.9.1", "apple-1", "Apple 1"));
+            auto attribute(X509_ATTRIBUTE_create(nid, V_ASN1_OCTET_STRING, string));
+            _assert(attribute != NULL);
+            string.release();
+            _assert(sk_X509_ATTRIBUTE_push(attributes, attribute) != 0);

         }
 
         }
 

-        special = std::max(special, CSSLOT_CODEDIRECTORY);
+        _assert(PKCS7_set_signed_attributes(info, attributes) != 0);
+        PKCS7_set_detached(value_, 1);
+
+        // XXX: this is the same as PKCS7_final(value_, data, PKCS7_BINARY)
+        BIO *bio(PKCS7_dataInit(value_, NULL));
+        _assert(bio != NULL);
+        _scope({ BIO_free_all(bio); });
+        SMIME_crlf_copy(data, bio, PKCS7_BINARY);
+        BIO_flush(bio);
+        _assert(PKCS7_dataFinal(value_, bio));
+    }
+
+    ~Signature() {
+        PKCS7_free(value_);
+    }
+
+    operator PKCS7 *() const {
+        return value_;
+    }
+};
+#endif
+
+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:
+    ldid::Hash &hash_;
+
+    LDID_SHA1_CTX sha1_;
+    LDID_SHA256_CTX sha256_;
+
+  public:
+    HashBuffer(ldid::Hash &hash) :
+        hash_(hash)
+    {
+        LDID_SHA1_Init(&sha1_);
+        LDID_SHA256_Init(&sha256_);
+    }
+
+    ~HashBuffer() {
+        LDID_SHA1_Final(reinterpret_cast<uint8_t *>(hash_.sha1_), &sha1_);
+        LDID_SHA256_Final(reinterpret_cast<uint8_t *>(hash_.sha256_), &sha256_);
+    }
+
+    virtual std::streamsize xsputn(const char_type *data, std::streamsize size) {
+        LDID_SHA1_Update(&sha1_, data, size);
+        LDID_SHA256_Update(&sha256_, 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(ldid::Hash &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);
+    }
+};
+
+#ifndef LDID_NOTOOLS
+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()));
+}
+#endif
+
+namespace ldid {
+
+#ifndef LDID_NOSMIME
+static void get(std::string &value, X509_NAME *name, int nid) {
+    auto index(X509_NAME_get_index_by_NID(name, nid, -1));
+    _assert(index >= 0);
+    auto next(X509_NAME_get_index_by_NID(name, nid, index));
+    _assert(next == -1);
+    auto entry(X509_NAME_get_entry(name, index));
+    _assert(entry != NULL);
+    auto asn(X509_NAME_ENTRY_get_data(entry));
+    _assert(asn != NULL);
+    value.assign(reinterpret_cast<char *>(ASN1_STRING_data(asn)), ASN1_STRING_length(asn));
+}
+#endif
+
+static void req(std::streambuf &buffer, uint32_t value) {
+    value = Swap(value);
+    put(buffer, &value, sizeof(value));
+}
+
+static void req(std::streambuf &buffer, const std::string &value) {
+    req(buffer, value.size());
+    put(buffer, value.data(), value.size());
+    static uint8_t zeros[] = {0,0,0,0};
+    put(buffer, zeros, 3 - (value.size() + 3) % 4);
+}
+
+template <size_t Size_>
+static void req(std::streambuf &buffer, uint8_t (&&data)[Size_]) {
+    req(buffer, Size_);
+    put(buffer, data, Size_);
+    static uint8_t zeros[] = {0,0,0,0};
+    put(buffer, zeros, 3 - (Size_ + 3) % 4);
+}
+
+Hash Sign(const void *idata, size_t isize, std::streambuf &output, const std::string &identifier, const std::string &entitlements, bool merge, const std::string &requirements, const std::string &key, const Slots &slots, uint32_t flags, bool platform, const Progress &progress) {
+    Hash hash;
+
+
+    std::string team;
+    std::string common;
+
+#ifndef LDID_NOSMIME
+    if (!key.empty()) {
+        Stuff stuff(key);
+        auto name(X509_get_subject_name(stuff));
+        _assert(name != NULL);
+        get(team, name, NID_organizationalUnitName);
+        get(common, name, NID_commonName);
+    }
+#endif
+
+
+    std::stringbuf backing;
+
+    if (!requirements.empty()) {
+        put(backing, requirements.data(), requirements.size());
+    } else {
+        Blobs blobs;
+
+        std::stringbuf requirement;
+        req(requirement, exprForm);
+        req(requirement, opAnd);
+        req(requirement, opIdent);
+        req(requirement, identifier);
+        req(requirement, opAnd);
+        req(requirement, opAppleGenericAnchor);
+        req(requirement, opAnd);
+        req(requirement, opCertField);
+        req(requirement, 0);
+        req(requirement, "subject.CN");
+        req(requirement, matchEqual);
+        req(requirement, common);
+        req(requirement, opCertGeneric);
+        req(requirement, 1);
+        req(requirement, (uint8_t []) {APPLE_EXTENSION_OID, 2, 1});
+        req(requirement, matchExists);
+        insert(blobs, 3, CSMAGIC_REQUIREMENT, requirement);
+
+        put(backing, CSMAGIC_REQUIREMENTS, blobs);
+    }
+
+
+    // XXX: this is just a "sufficiently large number"
+    size_t certificate(0x3000);
+
+    Allocate(idata, isize, output, fun([&](const MachHeader &mach_header, Baton &baton, size_t size) -> size_t {
+        size_t alloc(sizeof(struct SuperBlob));
+
+        uint32_t normal((size + PageSize_ - 1) / PageSize_);
+
+        uint32_t special(0);
+
+        _foreach (slot, slots)
+            special = std::max(special, slot.first);
+
+        mach_header.ForSection(fun([&](const char *segment, const char *section, void *data, size_t size) {
+            if (strcmp(segment, "__TEXT") == 0 && section != NULL && strcmp(section, "__info_plist") == 0)
+                special = std::max(special, CSSLOT_INFOSLOT);
+        }));
+
+        special = std::max(special, CSSLOT_REQUIREMENTS);

         alloc += sizeof(struct BlobIndex);
         alloc += sizeof(struct BlobIndex);

-        alloc += sizeof(struct Blob);
-        alloc += sizeof(struct CodeDirectory);
-        alloc += name.size() + 1;
+        alloc += backing.str().size();
+
+#ifdef LDID_NOPLIST
+        baton.entitlements_ = entitlements;
+#else
+        if (merge)
+            Analyze(mach_header, fun([&](const char *data, size_t size) {
+                baton.entitlements_.assign(data, size);
+            }));
+
+        if (!baton.entitlements_.empty() || !entitlements.empty()) {
+            auto combined(plist(baton.entitlements_));
+            _scope({ plist_free(combined); });
+            _assert(plist_get_node_type(combined) == PLIST_DICT);
+
+            auto merging(plist(entitlements));
+            _scope({ plist_free(merging); });
+            _assert(plist_get_node_type(merging) == PLIST_DICT);
+
+            plist_dict_iter iterator(NULL);
+            plist_dict_new_iter(merging, &iterator);
+            _scope({ free(iterator); });
+
+            for (;;) {
+                char *key(NULL);
+                plist_t value(NULL);
+                plist_dict_next_item(merging, iterator, &key, &value);
+                if (key == NULL)
+                    break;
+                _scope({ free(key); });
+                plist_dict_set_item(combined, key, plist_copy(value));
+            }

 
 

-        if (!key.empty()) {
+            baton.derformat_ = der(combined);
+
+            char *xml(NULL);
+            uint32_t size;
+            plist_to_xml(combined, &xml, &size);
+            _scope({ free(xml); });
+
+            baton.entitlements_.assign(xml, size);
+        }
+#endif
+
+        if (!baton.entitlements_.empty()) {
+            special = std::max(special, CSSLOT_ENTITLEMENTS);

             alloc += sizeof(struct BlobIndex);
             alloc += sizeof(struct Blob);
             alloc += sizeof(struct BlobIndex);
             alloc += sizeof(struct Blob);

-            // XXX: this is just a "sufficiently large number"
-            alloc += 0x3000;
+            alloc += baton.entitlements_.size();

         }
 
         }
 

-        _foreach (slot, slots)
-            special = std::max(special, slot.first);
+        if (!baton.derformat_.empty()) {
+            special = std::max(special, CSSLOT_DERFORMAT);
+            alloc += sizeof(struct BlobIndex);
+            alloc += sizeof(struct Blob);
+            alloc += baton.derformat_.size();
+        }
+
+        size_t directory(0);
+
+        directory += sizeof(struct BlobIndex);
+        directory += sizeof(struct Blob);
+        directory += sizeof(struct CodeDirectory);
+        directory += identifier.size() + 1;
+
+        if (!team.empty())
+            directory += team.size() + 1;
+
+        for (Algorithm *algorithm : GetAlgorithms())
+            alloc = Align(alloc + directory + (special + normal) * algorithm->size_, 16);
+
+#ifndef LDID_NOSMIME
+        if (!key.empty()) {
+            alloc += sizeof(struct BlobIndex);
+            alloc += sizeof(struct Blob);
+            alloc += certificate;
+        }
+#endif

 
 

-        uint32_t normal((size + PageSize_ - 1) / PageSize_);
-        alloc = Align(alloc + (special + normal) * SHA_DIGEST_LENGTH, 16);

         return alloc;
         return alloc;

-    }), fun([&](std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t {
+    }), fun([&](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, size_t left, size_t right, const std::string &overlap, const char *top, const Progress &progress) -> size_t {

         Blobs blobs;
 
         if (true) {
         Blobs blobs;
 
         if (true) {

-            std::stringbuf data;
+            insert(blobs, CSSLOT_REQUIREMENTS, backing);
+        }
+
+        uint64_t execs(0);
+        if (mach_header.Swap(mach_header->filetype) == MH_EXECUTE)
+            execs |= kSecCodeExecSegMainBinary;

 
 

-            Blobs requirements;
-            put(data, CSMAGIC_REQUIREMENTS, requirements);
+        if (!baton.entitlements_.empty()) {
+            std::stringbuf data;
+            put(data, baton.entitlements_.data(), baton.entitlements_.size());
+            insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, data);

 
 

-            insert(blobs, CSSLOT_REQUIREMENTS, data);
+#ifndef LDID_NOPLIST
+            auto entitlements(plist(baton.entitlements_));
+            _scope({ plist_free(entitlements); });
+            _assert(plist_get_node_type(entitlements) == PLIST_DICT);
+
+            const auto entitled([&](const char *key) {
+                auto item(plist_dict_get_item(entitlements, key));
+                if (plist_get_node_type(item) != PLIST_BOOLEAN)
+                    return false;
+                uint8_t value(0);
+                plist_get_bool_val(item, &value);
+                return value != 0;
+            });
+
+            if (entitled("get-task-allow"))
+                execs |= kSecCodeExecSegAllowUnsigned;
+            if (entitled("run-unsigned-code"))
+                execs |= kSecCodeExecSegAllowUnsigned;
+            if (entitled("com.apple.private.cs.debugger"))
+                execs |= kSecCodeExecSegDebugger;
+            if (entitled("dynamic-codesigning"))
+                execs |= kSecCodeExecSegJit;
+            if (entitled("com.apple.private.skip-library-validation"))
+                execs |= kSecCodeExecSegSkipLibraryVal;
+            if (entitled("com.apple.private.amfi.can-load-cdhash"))
+                execs |= kSecCodeExecSegCanLoadCdHash;
+            if (entitled("com.apple.private.amfi.can-execute-cdhash"))
+                execs |= kSecCodeExecSegCanExecCdHash;
+#endif

         }
 
         }
 

-        if (!entitlements.empty()) {
+        if (!baton.derformat_.empty()) {

             std::stringbuf data;
             std::stringbuf data;

-            put(data, entitlements.data(), entitlements.size());
-            insert(blobs, CSSLOT_ENTITLEMENTS, CSMAGIC_EMBEDDED_ENTITLEMENTS, data);
+            put(data, baton.derformat_.data(), baton.derformat_.size());
+            insert(blobs, CSSLOT_DERFORMAT, CSMAGIC_EMBEDDED_DERFORMAT, data);

         }
 
         }
 

-        if (true) {
+        Slots posts(slots);
+
+        mach_header.ForSection(fun([&](const char *segment, const char *section, void *data, size_t size) {
+            if (strcmp(segment, "__TEXT") == 0 && section != NULL && strcmp(section, "__info_plist") == 0) {
+                auto &slot(posts[CSSLOT_INFOSLOT]);
+                for (Algorithm *algorithm : GetAlgorithms())
+                    (*algorithm)(slot, data, size);
+            }
+        }));
+
+        unsigned total(0);
+        for (Algorithm *pointer : GetAlgorithms()) {
+            Algorithm &algorithm(*pointer);
+

             std::stringbuf data;
 
             uint32_t special(0);
             _foreach (blob, blobs)
                 special = std::max(special, blob.first);
             std::stringbuf data;
 
             uint32_t special(0);
             _foreach (blob, blobs)
                 special = std::max(special, blob.first);

-            _foreach (slot, slots)
+            _foreach (slot, posts)

                 special = std::max(special, slot.first);
             uint32_t normal((limit + PageSize_ - 1) / PageSize_);
 
             CodeDirectory directory;
                 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) + name.size() + 1 + SHA_DIGEST_LENGTH * special));
-            directory.identOffset = Swap(uint32_t(sizeof(Blob) + sizeof(CodeDirectory)));
+            directory.version = Swap(uint32_t(0x00020400));
+            directory.flags = Swap(uint32_t(flags));

             directory.nSpecialSlots = Swap(special);
             directory.nSpecialSlots = Swap(special);

-            directory.codeLimit = Swap(uint32_t(limit));
+            directory.codeLimit = Swap(uint32_t(limit > UINT32_MAX ? UINT32_MAX : limit));

             directory.nCodeSlots = Swap(normal);
             directory.nCodeSlots = Swap(normal);

-            directory.hashSize = SHA_DIGEST_LENGTH;
-            directory.hashType = CS_HASHTYPE_SHA1;
-            directory.spare1 = 0x00;
+            directory.hashSize = algorithm.size_;
+            directory.hashType = algorithm.type_;
+            directory.platform = platform ? 0x01 : 0x00;

             directory.pageSize = PageShift_;
             directory.spare2 = Swap(uint32_t(0));
             directory.pageSize = PageShift_;
             directory.spare2 = Swap(uint32_t(0));

+            directory.scatterOffset = Swap(uint32_t(0));
+            directory.spare3 = Swap(uint32_t(0));
+            directory.codeLimit64 = Swap(uint64_t(limit > UINT32_MAX ? limit : 0));
+            directory.execSegBase = Swap(uint64_t(left));
+            directory.execSegLimit = Swap(uint64_t(right - left));
+            directory.execSegFlags = Swap(execs);
+
+            uint32_t offset(sizeof(Blob) + sizeof(CodeDirectory));
+
+            directory.identOffset = Swap(uint32_t(offset));
+            offset += identifier.size() + 1;
+
+            if (team.empty())
+                directory.teamIDOffset = Swap(uint32_t(0));
+            else {
+                directory.teamIDOffset = Swap(uint32_t(offset));
+                offset += team.size() + 1;
+            }
+
+            offset += special * algorithm.size_;
+            directory.hashOffset = Swap(uint32_t(offset));
+            offset += normal * algorithm.size_;
+

             put(data, &directory, sizeof(directory));
 
             put(data, &directory, sizeof(directory));
 

-            put(data, name.c_str(), name.size() + 1);
+            put(data, identifier.c_str(), identifier.size() + 1);
+            if (!team.empty())
+                put(data, team.c_str(), team.size() + 1);

 
 

-            uint8_t storage[special + normal][SHA_DIGEST_LENGTH];
-            uint8_t (*hashes)[SHA_DIGEST_LENGTH] = storage + special;
+            std::vector<uint8_t> storage((special + normal) * algorithm.size_);
+            auto *hashes(&storage[special * algorithm.size_]);

 
 

-            memset(storage, 0, sizeof(*storage) * special);
+            memset(storage.data(), 0, special * algorithm.size_);

 
             _foreach (blob, blobs) {
                 auto local(reinterpret_cast<const Blob *>(&blob.second[0]));
 
             _foreach (blob, blobs) {
                 auto local(reinterpret_cast<const Blob *>(&blob.second[0]));

-                sha1((uint8_t *) (hashes - blob.first), local, Swap(local->length));
+                algorithm(hashes - blob.first * algorithm.size_, local, Swap(local->length));

             }
 
             }
 

-            _foreach (slot, slots) {
-                _assert(sizeof(*hashes) == slot.second.size());
-                memcpy(hashes - slot.first, slot.second.data(), slot.second.size());
-            }
+            _foreach (slot, posts)
+                memcpy(hashes - slot.first * algorithm.size_, algorithm[slot.second], algorithm.size_);

 
 

+            progress(0);

             if (normal != 1)
             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_);
+                for (size_t i = 0; i != normal - 1; ++i) {
+                    algorithm(hashes + i * algorithm.size_, (PageSize_ * i < overlap.size() ? overlap.data() : top) + PageSize_ * i, PageSize_);
+                    progress(double(i) / normal);
+                }

             if (normal != 0)
             if (normal != 0)

-                sha1(hashes[normal - 1], top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1);
+                algorithm(hashes + (normal - 1) * algorithm.size_, top + PageSize_ * (normal - 1), ((limit - 1) % PageSize_) + 1);
+            progress(1);

 
 

-            put(data, storage, sizeof(storage));
+            put(data, storage.data(), storage.size());

 
 

-            insert(blobs, CSSLOT_CODEDIRECTORY, CSMAGIC_CODEDIRECTORY, data);
+            const auto &save(insert(blobs, total == 0 ? CSSLOT_CODEDIRECTORY : CSSLOT_ALTERNATE + total - 1, CSMAGIC_CODEDIRECTORY, data));
+            algorithm(hash, save.data(), save.size());
+
+            ++total;

         }
 
         }
 

+#ifndef LDID_NOSMIME

         if (!key.empty()) {
         if (!key.empty()) {

+#ifdef LDID_NOPLIST
+            auto plist(CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
+            _scope({ CFRelease(plist); });
+
+            auto cdhashes(CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks));
+            _scope({ CFRelease(cdhashes); });
+
+            CFDictionarySetValue(plist, CFSTR("cdhashes"), cdhashes);
+#else
+            auto plist(plist_new_dict());
+            _scope({ plist_free(plist); });
+
+            auto cdhashes(plist_new_array());
+            plist_dict_set_item(plist, "cdhashes", cdhashes);
+#endif
+
+            ldid::Hash hash;
+
+            unsigned total(0);
+            for (Algorithm *pointer : GetAlgorithms()) {
+                Algorithm &algorithm(*pointer);
+                (void) algorithm;
+
+                const auto &blob(blobs[total == 0 ? CSSLOT_CODEDIRECTORY : CSSLOT_ALTERNATE + total - 1]);
+                ++total;
+
+                algorithm(hash, blob.data(), blob.size());
+
+                std::vector<char> cdhash(algorithm[hash], algorithm[hash] + algorithm.size_);
+                cdhash.resize(20);
+
+#ifdef LDID_NOPLIST
+                auto value(CFDataCreate(kCFAllocatorDefault, reinterpret_cast<const UInt8 *>(cdhash.data()), cdhash.size()));
+                _scope({ CFRelease(value); });
+                CFArrayAppendValue(cdhashes, value);
+#else
+                plist_array_append_item(cdhashes, plist_new_data(cdhash.data(), cdhash.size()));
+#endif
+            }
+
+#ifdef LDID_NOPLIST
+            auto created(CFPropertyListCreateXMLData(kCFAllocatorDefault, plist));
+            _scope({ CFRelease(created); });
+            auto xml(reinterpret_cast<const char *>(CFDataGetBytePtr(created)));
+            auto size(CFDataGetLength(created));
+#else
+            char *xml(NULL);
+            uint32_t size;
+            plist_to_xml(plist, &xml, &size);
+            _scope({ free(xml); });
+#endif
+

             std::stringbuf data;
             const std::string &sign(blobs[CSSLOT_CODEDIRECTORY]);
 
             Stuff stuff(key);
             Buffer bio(sign);
 
             std::stringbuf data;
             const std::string &sign(blobs[CSSLOT_CODEDIRECTORY]);
 
             Stuff stuff(key);
             Buffer bio(sign);
 

-            Signature signature(stuff, sign);
+            Signature signature(stuff, sign, std::string(xml, size), hash);

             Buffer result(signature);
             std::string value(result);
             put(data, value.data(), value.size());
 
             Buffer result(signature);
             std::string value(result);
             put(data, value.data(), value.size());
 

-            insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data);
+            const auto &save(insert(blobs, CSSLOT_SIGNATURESLOT, CSMAGIC_BLOBWRAPPER, data));
+            _assert(save.size() <= certificate);

         }
         }

+#endif

 
         return put(output, CSMAGIC_EMBEDDED_SIGNATURE, blobs);
 
         return put(output, CSMAGIC_EMBEDDED_SIGNATURE, blobs);

-    }));
+    }), progress);
+
+    return hash;

 }
 
 }
 

-static void Unsign(void *idata, size_t isize, std::streambuf &output) {
-    Allocate(idata, isize, output, fun([](size_t size) -> size_t {
+#ifndef LDID_NOTOOLS
+static void Unsign(void *idata, size_t isize, std::streambuf &output, const Progress &progress) {
+    Allocate(idata, isize, output, fun([](const MachHeader &mach_header, Baton &baton, size_t size) -> size_t {

         return 0;
         return 0;

-    }), fun([](std::streambuf &output, size_t limit, const std::string &overlap, const char *top) -> size_t {
+    }), fun([](const MachHeader &mach_header, const Baton &baton, std::streambuf &output, size_t limit, size_t left, size_t right, const std::string &overlap, const char *top, const Progress &progress) -> size_t {

         return 0;
         return 0;

+    }), progress);
+}
+
+std::string DiskFolder::Path(const std::string &path) const {
+    return path_ + path;
+}
+
+DiskFolder::DiskFolder(const std::string &path) :
+    path_(path)
+{
+    _assert_(path_.size() != 0 && path_[path_.size() - 1] == '/', "missing / on %s", path_.c_str());
+}
+
+DiskFolder::~DiskFolder() {
+    if (!std::uncaught_exception())
+        for (const auto &commit : commit_)
+            Commit(commit.first, commit.second);
+}
+
+#ifndef __WIN32__
+std::string readlink(const std::string &path) {
+    for (size_t size(1024); ; size *= 2) {
+        std::string data;
+        data.resize(size);
+
+        int writ(_syscall(::readlink(path.c_str(), &data[0], data.size())));
+        if (size_t(writ) >= size)
+            continue;
+
+        data.resize(writ);
+        return data;
+    }
+}
+#endif
+
+void DiskFolder::Find(const std::string &root, const std::string &base, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+    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 + name).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;
+            case DT_LNK:
+                link(base + name, fun([&]() { return readlink(path + name); }));
+                continue;
+            default:
+                _assert_(false, "d_type=%u", child->d_type);
+        }
+#endif
+
+        if (directory)
+            Find(root, base + name + "/", code, link);
+        else
+            code(base + name);
+    }
+}
+
+void DiskFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+    if (!edit) {
+        NullBuffer save;
+        code(save);
+    } else {
+        std::filebuf save;
+        auto from(Path(path));
+        commit_[from] = Temporary(save, from);
+        code(save);
+    }
+}
+
+bool DiskFolder::Look(const std::string &path) const {
+    return _syscall(access(Path(path).c_str(), R_OK), ENOENT) == 0;
+}
+
+void DiskFolder::Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const {
+    std::filebuf data;
+    auto result(data.open(Path(path).c_str(), std::ios::binary | std::ios::in));
+    _assert_(result == &data, "DiskFolder::Open(%s)", Path(path).c_str());
+
+    auto length(data.pubseekoff(0, std::ios::end, std::ios::in));
+    data.pubseekpos(0, std::ios::in);
+    code(data, length, NULL);
+}
+
+void DiskFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+    Find(path, "", code, link);
+}
+#endif
+
+SubFolder::SubFolder(Folder &parent, const std::string &path) :
+    parent_(parent),
+    path_(path)
+{
+    _assert_(path_.size() == 0 || path_[path_.size() - 1] == '/', "missing / on %s", path_.c_str());
+}
+
+std::string SubFolder::Path(const std::string &path) const {
+    return path_ + path;
+}
+
+void SubFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+    return parent_.Save(Path(path), edit, flag, code);
+}
+
+bool SubFolder::Look(const std::string &path) const {
+    return parent_.Look(Path(path));
+}
+
+void SubFolder::Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const {
+    return parent_.Open(Path(path), code);
+}
+
+void SubFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+    return parent_.Find(Path(path), code, link);
+}
+
+std::string UnionFolder::Map(const std::string &path) const {
+    auto remap(remaps_.find(path));
+    if (remap == remaps_.end())
+        return path;
+    return remap->second;
+}
+
+void UnionFolder::Map(const std::string &path, const Functor<void (const std::string &)> &code, const std::string &file, const Functor<void (const Functor<void (std::streambuf &, size_t, const void *)> &)> &save) const {
+    if (file.size() >= path.size() && file.substr(0, path.size()) == path)
+        code(file.substr(path.size()));
+}
+
+UnionFolder::UnionFolder(Folder &parent) :
+    parent_(parent)
+{
+}
+
+void UnionFolder::Save(const std::string &path, bool edit, const void *flag, const Functor<void (std::streambuf &)> &code) {
+    return parent_.Save(Map(path), edit, flag, code);
+}
+
+bool UnionFolder::Look(const std::string &path) const {
+    auto file(resets_.find(path));
+    if (file != resets_.end())
+        return true;
+    return parent_.Look(Map(path));
+}
+
+void UnionFolder::Open(const std::string &path, const Functor<void (std::streambuf &, size_t, const void *)> &code) const {
+    auto file(resets_.find(path));
+    if (file == resets_.end())
+        return parent_.Open(Map(path), code);
+    auto &entry(file->second);
+
+    auto &data(*entry.data_);
+    auto length(data.pubseekoff(0, std::ios::end, std::ios::in));
+    data.pubseekpos(0, std::ios::in);
+    code(data, length, entry.flag_);
+}
+
+void UnionFolder::Find(const std::string &path, const Functor<void (const std::string &)> &code, const Functor<void (const std::string &, const Functor<std::string ()> &)> &link) const {
+    for (auto &reset : resets_)
+        Map(path, code, reset.first, fun([&](const Functor<void (std::streambuf &, size_t, const void *)> &code) {
+            auto &entry(reset.second);
+            auto &data(*entry.data_);
+            auto length(data.pubseekoff(0, std::ios::end, std::ios::in));
+            data.pubseekpos(0, std::ios::in);
+            code(data, length, entry.flag_);
+        }));
+
+    for (auto &remap : remaps_)
+        Map(path, code, remap.first, fun([&](const Functor<void (std::streambuf &, size_t, const void *)> &code) {
+            parent_.Open(remap.second, fun([&](std::streambuf &data, size_t length, const void *flag) {
+                code(data, length, flag);
+            }));
+        }));
+
+    parent_.Find(path, fun([&](const std::string &name) {
+        if (deletes_.find(path + name) == deletes_.end())
+            code(name);
+    }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+        if (deletes_.find(path + name) == deletes_.end())
+            link(name, read);

     }));
 }
 
     }));
 }
 

+#ifndef LDID_NOTOOLS
+static void copy(std::streambuf &source, std::streambuf &target, size_t length, const Progress &progress) {
+    progress(0);
+    size_t total(0);
+    for (;;) {
+        char data[4096 * 4];
+        size_t writ(source.sgetn(data, sizeof(data)));
+        if (writ == 0)
+            break;
+        _assert(target.sputn(data, writ) == writ);
+        total += writ;
+        progress(double(total) / length);
+    }
+}
+
+#ifndef LDID_NOPLIST
+static plist_t plist(const std::string &data) {
+    if (data.empty())
+        return plist_new_dict();
+    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, size_t length, const Functor<void (plist_t)> &code) {
+    std::stringbuf data;
+    copy(buffer, data, length, dummy_);
+    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;
+}
+#endif
+
+enum Mode {
+    NoMode,
+    OptionalMode,
+    OmitMode,
+    NestedMode,
+    TopMode,
+};
+
+class Expression {
+  private:
+    regex_t regex_;
+    std::vector<std::string> matches_;
+
+  public:
+    Expression(const std::string &code) {
+        _assert_(regcomp(&regex_, code.c_str(), REG_EXTENDED) == 0, "regcomp()");
+        matches_.resize(regex_.re_nsub + 1);
+    }
+
+    ~Expression() {
+        regfree(&regex_);
+    }
+
+    bool operator ()(const std::string &data) {
+        regmatch_t matches[matches_.size()];
+        auto value(regexec(&regex_, data.c_str(), matches_.size(), matches, 0));
+        if (value == REG_NOMATCH)
+            return false;
+        _assert_(value == 0, "regexec()");
+        for (size_t i(0); i != matches_.size(); ++i)
+            matches_[i].assign(data.data() + matches[i].rm_so, matches[i].rm_eo - matches[i].rm_so);
+        return true;
+    }
+
+    const std::string &operator [](size_t index) const {
+        return matches_[index];
+    }
+};
+
+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_;
+    }
+};
+
+#ifndef LDID_NOPLIST
+static Hash Sign(const uint8_t *prefix, size_t size, std::streambuf &buffer, Hash &hash, std::streambuf &save, const std::string &identifier, const std::string &entitlements, bool merge, const std::string &requirements, const std::string &key, const Slots &slots, size_t length, uint32_t flags, bool platform, const Progress &progress) {
+    // XXX: this is a miserable fail
+    std::stringbuf temp;
+    put(temp, prefix, size);
+    copy(buffer, temp, length - size, progress);
+    // XXX: this is a stupid hack
+    pad(temp, 0x10 - (length & 0xf));
+    auto data(temp.str());
+
+    HashProxy proxy(hash, save);
+    return Sign(data.data(), data.size(), proxy, identifier, entitlements, merge, requirements, key, slots, flags, platform, progress);

 }
 
 }
 

+struct State {
+    std::map<std::string, Hash> files;
+    std::map<std::string, std::string> links;
+
+    void Merge(const std::string &root, const State &state) {
+        for (const auto &entry : state.files)
+            files[root + entry.first] = entry.second;
+        for (const auto &entry : state.links)
+            links[root + entry.first] = entry.second;
+    }
+};
+
+Bundle Sign(const std::string &root, Folder &parent, const std::string &key, State &local, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, const Progress &progress) {
+    std::string executable;
+    std::string identifier;
+
+    bool mac(false);
+
+    std::string info("Info.plist");
+
+    SubFolder folder(parent, [&]() {
+        if (parent.Look(info))
+            return "";
+        mac = true;
+        if (false);
+        else if (parent.Look("Contents/" + info))
+            return "Contents/";
+        else if (parent.Look("Resources/" + info)) {
+            info = "Resources/" + info;
+            return "";
+        } else _assert_(false, "cannot find Info.plist");
+    }());
+
+    folder.Open(info, fun([&](std::streambuf &buffer, size_t length, const void *flag) {
+        plist_d(buffer, length, fun([&](plist_t node) {
+            executable = plist_s(plist_dict_get_item(node, "CFBundleExecutable"));
+            identifier = plist_s(plist_dict_get_item(node, "CFBundleIdentifier"));
+        }));
+    }));
+
+    if (mac && info == "Info.plist")
+        executable = "MacOS/" + executable;
+
+    progress(root + "*");
+
+    std::string entitlements;
+    folder.Open(executable, fun([&](std::streambuf &buffer, size_t length, const void *flag) {
+        // XXX: this is a miserable fail
+        std::stringbuf temp;
+        copy(buffer, temp, length, progress);
+        // XXX: this is a stupid hack
+        pad(temp, 0x10 - (length & 0xf));
+        auto data(temp.str());
+        entitlements = alter(root, Analyze(data.data(), data.size()));
+    }));
+
+    static const std::string directory("_CodeSignature/");
+    static const std::string signature(directory + "CodeResources");
+
+    std::map<std::string, std::multiset<Rule>> versions;
+
+    auto &rules1(versions[""]);
+    auto &rules2(versions["2"]);
+
+    const std::string resources(mac ? "Resources/" : "");
+
+    if (true) {
+        rules1.insert(Rule{1, NoMode, "^" + (resources == "" ? ".*" : resources)});
+        rules1.insert(Rule{1000, OptionalMode, "^" + resources + ".*\\.lproj/"});
+        rules1.insert(Rule{1100, OmitMode, "^" + resources + ".*\\.lproj/locversion.plist$"});
+        rules1.insert(Rule{1010, NoMode, "^" + resources + "Base\\.lproj/"});
+        rules1.insert(Rule{1, NoMode, "^version.plist$"});
+    }
+
+    if (true) {
+        rules2.insert(Rule{11, NoMode, ".*\\.dSYM($|/)"});
+        if (mac) rules2.insert(Rule{20, NoMode, "^" + resources});
+        rules2.insert(Rule{2000, OmitMode, "^(.*/)?\\.DS_Store$"});
+        if (mac) 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, "^" + resources + ".*\\.lproj/"});
+        rules2.insert(Rule{1100, OmitMode, "^" + resources + ".*\\.lproj/locversion.plist$"});
+        if (!mac) rules2.insert(Rule{1010, NoMode, "^Base\\.lproj/"});
+        rules2.insert(Rule{20, OmitMode, "^Info\\.plist$"});
+        rules2.insert(Rule{20, OmitMode, "^PkgInfo$"});
+        if (mac) rules2.insert(Rule{10, NestedMode, "^[^/]+$"});
+        rules2.insert(Rule{20, NoMode, "^embedded\\.provisionprofile$"});
+        if (mac) rules2.insert(Rule{1010, NoMode, "^" + resources + "Base\\.lproj/"});
+        rules2.insert(Rule{20, NoMode, "^version\\.plist$"});
+    }
+
+    std::string failure(mac ? "Contents/|Versions/[^/]*/Resources/" : "");
+    Expression nested("^(Frameworks/[^/]*\\.framework|PlugIns/[^/]*\\.appex(()|/[^/]*.app))/(" + failure + ")Info\\.plist$");
+    std::map<std::string, Bundle> bundles;
+
+    folder.Find("", fun([&](const std::string &name) {
+        if (!nested(name))
+            return;
+        auto bundle(Split(name).dir);
+        if (mac) {
+            _assert(!bundle.empty());
+            bundle = Split(bundle.substr(0, bundle.size() - 1)).dir;
+        }
+        SubFolder subfolder(folder, bundle);
+
+        State remote;
+        bundles[nested[1]] = Sign(root + bundle, subfolder, key, remote, "", Starts(name, "PlugIns/") ? alter :
+            static_cast<const Functor<std::string (const std::string &, const std::string &)> &>(fun([&](const std::string &, const std::string &) -> std::string { return entitlements; }))
+        , progress);
+        local.Merge(bundle, remote);
+    }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+    }));
+
+    std::set<std::string> excludes;
+
+    auto exclude([&](const std::string &name) {
+        // BundleDiskRep::adjustResources -> builder.addExclusion
+        if (name == executable || Starts(name, directory) || Starts(name, "_MASReceipt/") || name == "CodeResources")
+            return true;
+
+        for (const auto &bundle : bundles)
+            if (Starts(name, bundle.first + "/")) {
+                excludes.insert(name);
+                return true;
+            }
+
+        return false;
+    });
+
+    folder.Find("", fun([&](const std::string &name) {
+        if (exclude(name))
+            return;
+
+        if (local.files.find(name) != local.files.end())
+            return;
+        auto &hash(local.files[name]);
+
+        folder.Open(name, fun([&](std::streambuf &data, size_t length, const void *flag) {
+            progress(root + name);
+
+            union {
+                struct {
+                    uint32_t magic;
+                    uint32_t count;
+                };
+
+                uint8_t bytes[8];
+            } header;
+
+            auto size(most(data, &header.bytes, sizeof(header.bytes)));
+
+            if (name != "_WatchKitStub/WK" && size == sizeof(header.bytes))
+                switch (Swap(header.magic)) {
+                    case FAT_MAGIC:
+                        // Java class file format
+                        if (Swap(header.count) >= 40)
+                            break;
+                    case FAT_CIGAM:
+                    case MH_MAGIC: case MH_MAGIC_64:
+                    case MH_CIGAM: case MH_CIGAM_64:
+                        folder.Save(name, true, flag, fun([&](std::streambuf &save) {
+                            Slots slots;
+                            Sign(header.bytes, size, data, hash, save, identifier, "", false, "", key, slots, length, 0, false, Progression(progress, root + name));
+                        }));
+                        return;
+                }
+
+            folder.Save(name, false, flag, fun([&](std::streambuf &save) {
+                HashProxy proxy(hash, save);
+                put(proxy, header.bytes, size);
+                copy(data, proxy, length - size, progress);
+            }));
+        }));
+    }), fun([&](const std::string &name, const Functor<std::string ()> &read) {
+        if (exclude(name))
+            return;
+
+        local.links[name] = read();
+    }));
+
+    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();
+
+        bool old(&version.second == &rules1);
+
+        for (const auto &hash : local.files)
+            for (const auto &rule : version.second)
+                if (rule(hash.first)) {
+                    if (!old && mac && excludes.find(hash.first) != excludes.end());
+                    else if (old && rule.mode_ == NoMode)
+                        plist_dict_set_item(files, hash.first.c_str(), plist_new_data(reinterpret_cast<const char *>(hash.second.sha1_), sizeof(hash.second.sha1_)));
+                    else if (rule.mode_ != OmitMode) {
+                        auto entry(plist_new_dict());
+                        plist_dict_set_item(entry, "hash", plist_new_data(reinterpret_cast<const char *>(hash.second.sha1_), sizeof(hash.second.sha1_)));
+                        if (!old)
+                            plist_dict_set_item(entry, "hash2", plist_new_data(reinterpret_cast<const char *>(hash.second.sha256_), sizeof(hash.second.sha256_)));
+                        if (rule.mode_ == OptionalMode)
+                            plist_dict_set_item(entry, "optional", plist_new_bool(true));
+                        plist_dict_set_item(files, hash.first.c_str(), entry);
+                    }
+
+                    break;
+                }
+
+        if (!old)
+            for (const auto &link : local.links)
+                for (const auto &rule : version.second)
+                    if (rule(link.first)) {
+                        if (rule.mode_ != OmitMode) {
+                            auto entry(plist_new_dict());
+                            plist_dict_set_item(entry, "symlink", plist_new_string(link.second.c_str()));
+                            if (rule.mode_ == OptionalMode)
+                                plist_dict_set_item(entry, "optional", plist_new_bool(true));
+                            plist_dict_set_item(files, link.first.c_str(), entry);
+                        }
+
+                        break;
+                    }
+
+        if (!old && mac)
+            for (const auto &bundle : bundles) {
+                auto entry(plist_new_dict());
+                plist_dict_set_item(entry, "cdhash", plist_new_data(reinterpret_cast<const char *>(bundle.second.hash.sha256_), sizeof(bundle.second.hash.sha256_)));
+                plist_dict_set_item(entry, "requirement", plist_new_string("anchor apple generic"));
+                plist_dict_set_item(files, bundle.first.c_str(), entry);
+            }
+    }
+
+    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, true, NULL, fun([&](std::streambuf &save) {
+        HashProxy proxy(local.files[signature], save);
+        char *xml(NULL);
+        uint32_t size;
+        plist_to_xml(plist, &xml, &size);
+        _scope({ free(xml); });
+        put(proxy, xml, size);
+    }));
+
+    Bundle bundle;
+    bundle.path = folder.Path(executable);
+
+    folder.Open(executable, fun([&](std::streambuf &buffer, size_t length, const void *flag) {
+        progress(root + executable);
+        folder.Save(executable, true, flag, fun([&](std::streambuf &save) {
+            Slots slots;
+            slots[1] = local.files.at(info);
+            slots[3] = local.files.at(signature);
+            bundle.hash = Sign(NULL, 0, buffer, local.files[executable], save, identifier, entitlements, false, requirements, key, slots, length, 0, false, Progression(progress, root + executable));
+        }));
+    }));
+
+    return bundle;
+}
+
+Bundle Sign(const std::string &root, Folder &folder, const std::string &key, const std::string &requirements, const Functor<std::string (const std::string &, const std::string &)> &alter, const Progress &progress) {
+    State local;
+    return Sign(root, folder, key, local, requirements, alter, progress);
+}
+#endif
+
+#endif
+}
+
+std::string Hex(const uint8_t *data, size_t size) {
+    std::string hex;
+    hex.reserve(size * 2);
+    for (size_t i(0); i != size; ++i) {
+        hex += "0123456789abcdef"[data[i] >> 4];
+        hex += "0123456789abcdef"[data[i] & 0xf];
+    }
+    return hex;
+}
+
+static void usage(const char *argv0) {
+    fprintf(stderr, "usage: %s -S[entitlements.xml] <binary>\n", argv0);
+    fprintf(stderr, "   %s -e MobileSafari\n", argv0);
+    fprintf(stderr, "   %s -S cat\n", argv0);
+    fprintf(stderr, "   %s -Stfp.xml gdb\n", argv0);
+}
+
+#ifndef LDID_NOTOOLS

 int main(int argc, char *argv[]) {
 int main(int argc, char *argv[]) {

+#ifndef LDID_NOSMIME

     OpenSSL_add_all_algorithms();
     OpenSSL_add_all_algorithms();

+#endif

 
     union {
         uint16_t word;
 
     union {
         uint16_t word;


@@ -1409,37 +3229,52 @@ int main(int argc, char *argv[]) {
 
     bool flag_r(false);
     bool flag_e(false);
 
     bool flag_r(false);
     bool flag_e(false);

+    bool flag_q(false);
+    bool flag_k(false);
+
+    bool flag_H(false);
+    bool flag_h(false);

 
 

+#ifndef LDID_NOFLAGT

     bool flag_T(false);
     bool flag_T(false);

+#endif

 
     bool flag_S(false);
     bool flag_s(false);
 
     bool flag_D(false);
 
     bool flag_S(false);
     bool flag_s(false);
 
     bool flag_D(false);

+    bool flag_d(false);

 
     bool flag_A(false);
     bool flag_a(false);
 
 
     bool flag_A(false);
     bool flag_a(false);
 

+    bool flag_u(false);
+
+    bool flag_M(false);
+
+    uint32_t flags(0);
+    bool platform(false);
+

     uint32_t flag_CPUType(_not(uint32_t));
     uint32_t flag_CPUSubtype(_not(uint32_t));
 
     const char *flag_I(NULL);
 
     uint32_t flag_CPUType(_not(uint32_t));
     uint32_t flag_CPUSubtype(_not(uint32_t));
 
     const char *flag_I(NULL);
 

+#ifndef LDID_NOFLAGT

     bool timeh(false);
     uint32_t timev(0);
     bool timeh(false);
     uint32_t timev(0);

+#endif

 
     Map entitlements;
 
     Map entitlements;

+    Map requirements;

     Map key;
     ldid::Slots slots;
 
     std::vector<std::string> files;
 
     if (argc == 1) {
     Map key;
     ldid::Slots slots;
 
     std::vector<std::string> files;
 
     if (argc == 1) {

-        fprintf(stderr, "usage: %s -S[entitlements.xml] <binary>\n", argv[0]);
-        fprintf(stderr, "   %s -e MobileSafari\n", argv[0]);
-        fprintf(stderr, "   %s -S cat\n", argv[0]);
-        fprintf(stderr, "   %s -Stfp.xml gdb\n", argv[0]);
-        exit(0);
+        usage(argv[0]);
+        return 0;

     }
 
     for (int argi(1); argi != argc; ++argi)
     }
 
     for (int argi(1); argi != argc; ++argi)


@@ -1455,19 +3290,50 @@ int main(int argc, char *argv[]) {
             case 'e': flag_e = true; break;
 
             case 'E': {
             case 'e': flag_e = true; break;
 
             case 'E': {

-                const char *slot = argv[argi] + 2;
-                const char *colon = strchr(slot, ':');
+                const char *string = argv[argi] + 2;
+                const char *colon = strchr(string, ':');

                 _assert(colon != NULL);
                 Map file(colon + 1, O_RDONLY, PROT_READ, MAP_PRIVATE);
                 char *arge;
                 _assert(colon != NULL);
                 Map file(colon + 1, O_RDONLY, PROT_READ, MAP_PRIVATE);
                 char *arge;

-                unsigned number(strtoul(slot, &arge, 0));
+                unsigned number(strtoul(string, &arge, 0));

                 _assert(arge == colon);
                 _assert(arge == colon);

-                std::string &hash(slots[number]);
-                hash.resize(SHA_DIGEST_LENGTH);
-                sha1(reinterpret_cast<uint8_t *>(&hash[0]), file.data(), file.size());
+                auto &slot(slots[number]);
+                for (Algorithm *algorithm : GetAlgorithms())
+                    (*algorithm)(slot, file.data(), file.size());
+            } break;
+
+            case 'q': flag_q = true; break;
+
+            case 'H': {
+                const char *hash = argv[argi] + 2;
+
+                if (!flag_H) {
+                    flag_H = true;
+
+                    do_sha1 = false;
+                    do_sha256 = false;
+
+                    fprintf(stderr, "WARNING: -H is only present for compatibility with a fork of ldid\n");
+                    fprintf(stderr, "         you should NOT be manually specifying the hash algorithm\n");
+                }
+
+                if (false);
+                else if (strcmp(hash, "sha1") == 0)
+                    do_sha1 = true;
+                else if (strcmp(hash, "sha256") == 0)
+                    do_sha256 = true;
+                else _assert(false);
+            } break;
+
+            case 'h': flag_h = true; break;
+
+            case 'Q': {
+                const char *xml = argv[argi] + 2;
+                requirements.open(xml, O_RDONLY, PROT_READ, MAP_PRIVATE);

             } break;
 
             case 'D': flag_D = true; break;
             } break;
 
             case 'D': flag_D = true; break;

+            case 'd': flag_d = true; break;

 
             case 'a': flag_a = true; break;
 
 
             case 'a': flag_a = true; break;
 


@@ -1486,6 +3352,34 @@ int main(int argc, char *argv[]) {
                 }
             break;
 
                 }
             break;
 

+            case 'C': {
+                const char *name = argv[argi] + 2;
+                if (false);
+                else if (strcmp(name, "host") == 0)
+                    flags |= kSecCodeSignatureHost;
+                else if (strcmp(name, "adhoc") == 0)
+                    flags |= kSecCodeSignatureAdhoc;
+                else if (strcmp(name, "hard") == 0)
+                    flags |= kSecCodeSignatureForceHard;
+                else if (strcmp(name, "kill") == 0)
+                    flags |= kSecCodeSignatureForceKill;
+                else if (strcmp(name, "expires") == 0)
+                    flags |= kSecCodeSignatureForceExpiration;
+                else if (strcmp(name, "restrict") == 0)
+                    flags |= kSecCodeSignatureRestrict;
+                else if (strcmp(name, "enforcement") == 0)
+                    flags |= kSecCodeSignatureEnforcement;
+                else if (strcmp(name, "library-validation") == 0)
+                    flags |= kSecCodeSignatureLibraryValidation;
+                else if (strcmp(name, "runtime") == 0)
+                    flags |= kSecCodeSignatureRuntime;
+                else _assert(false);
+            } break;
+
+            case 'P':
+                platform = true;
+            break;
+

             case 's':
                 _assert(!flag_r);
                 _assert(!flag_S);
             case 's':
                 _assert(!flag_r);
                 _assert(!flag_S);


@@ -1502,10 +3396,20 @@ int main(int argc, char *argv[]) {
                 }
             break;
 
                 }
             break;
 

+            case 'M':
+                flag_M = true;
+            break;
+
+            case 'k':
+                flag_k = true;
+            break;
+

             case 'K':
             case 'K':

-                key.open(argv[argi] + 2, O_RDONLY, PROT_READ, MAP_PRIVATE);
+                if (argv[argi][2] != '\0')
+                    key.open(argv[argi] + 2, O_RDONLY, PROT_READ, MAP_PRIVATE);

             break;
 
             break;
 

+#ifndef LDID_NOFLAGT

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


@@ -1516,60 +3420,74 @@ int main(int argc, char *argv[]) {
                     _assert(arge == argv[argi] + strlen(argv[argi]));
                 }
             } break;
                     _assert(arge == argv[argi] + strlen(argv[argi]));
                 }
             } break;

+#endif
+
+            case 'u': {
+                flag_u = true;
+            } break;

 
             case 'I': {
                 flag_I = argv[argi] + 2;
             } break;
 
             default:
 
             case 'I': {
                 flag_I = argv[argi] + 2;
             } break;
 
             default:

-                goto usage;
+                usage(argv[0]);
+                return 1;

             break;
         }
 
     _assert(flag_S || key.empty());
     _assert(flag_S || flag_I == NULL);
 
             break;
         }
 
     _assert(flag_S || key.empty());
     _assert(flag_S || flag_I == NULL);
 

-    if (files.empty()) usage: {
-        exit(0);
+    if (flag_d && !flag_h) {
+        flag_h = true;
+        fprintf(stderr, "WARNING: -d also (temporarily) does the behavior of -h for compatibility with a fork of ldid\n");

     }
 
     }
 

+    if (files.empty())
+        return 0;
+

     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());
-
-        if (flag_S || flag_r) {
+        std::string path(file);
+
+        struct stat info;
+        _syscall(stat(path.c_str(), &info));
+
+        if (S_ISDIR(info.st_mode)) {
+            _assert(flag_S);
+#ifndef LDID_NOPLIST
+            ldid::DiskFolder folder(path + "/");
+            path += "/" + Sign("", folder, key, requirements, ldid::fun([&](const std::string &, const std::string &) -> std::string { return entitlements; }), dummy_).path;
+#else
+            _assert(false);
+#endif
+        } else if (flag_S || flag_r) {

             Map input(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
 
             Map input(path, O_RDONLY, PROT_READ, MAP_PRIVATE);
 

-            std::string dir;
-            const char *base = strrchr(path, '/');
-
-            if (base != NULL)
-                dir.assign(path, base++ - path + 1);
-            else
-                base = path;
-
-            std::string temp(dir + "." + base + ".cs");

             std::filebuf output;
             std::filebuf output;

-            _assert(output.open(temp.c_str(), std::ios::out | std::ios::trunc | std::ios::binary) == &output);
+            Split split(path);
+            auto temp(Temporary(output, split));

 
             if (flag_r)
 
             if (flag_r)

-                ldid::Unsign(input.data(), input.size(), output);
+                ldid::Unsign(input.data(), input.size(), output, dummy_);

             else {
             else {

-                const char *name(flag_I ?: base);
-                ldid::Sign(input.data(), input.size(), output, name, entitlements, key, slots);
+                std::string identifier(flag_I ?: split.base.c_str());
+                ldid::Sign(input.data(), input.size(), output, identifier, entitlements, flag_M, requirements, key, slots, flags, platform, dummy_);

             }
 
             }
 

-            struct stat info;
-            _syscall(stat(path, &info));
-#ifndef __WIN32__
-            _syscall(chown(temp.c_str(), info.st_uid, info.st_gid));
-#endif
-            _syscall(chmod(temp.c_str(), info.st_mode));
-            _syscall(unlink(path));
-            _syscall(rename(temp.c_str(), path));
+            Commit(path, temp);

         }
 
         }
 

-        Map mapping(path, flag_T || flag_s);
+        bool modify(false);
+#ifndef LDID_NOFLAGT
+        if (flag_T)
+            modify = true;
+#endif
+        if (flag_s)
+            modify = true;
+
+        Map mapping(path, modify);

         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()) {


@@ -1594,6 +3512,19 @@ int main(int argc, char *argv[]) {
                     signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
                 else if (cmd == LC_ENCRYPTION_INFO || cmd == LC_ENCRYPTION_INFO_64)
                     encryption = reinterpret_cast<struct encryption_info_command *>(load_command);
                     signature = reinterpret_cast<struct linkedit_data_command *>(load_command);
                 else if (cmd == LC_ENCRYPTION_INFO || cmd == LC_ENCRYPTION_INFO_64)
                     encryption = reinterpret_cast<struct encryption_info_command *>(load_command);

+                else if (cmd == LC_LOAD_DYLIB) {
+                    volatile struct dylib_command *dylib_command(reinterpret_cast<struct dylib_command *>(load_command));
+                    const char *name(reinterpret_cast<const char *>(load_command) + mach_header.Swap(dylib_command->dylib.name));
+
+                    if (strcmp(name, "/System/Library/Frameworks/UIKit.framework/UIKit") == 0) {
+                        if (flag_u) {
+                            Version version;
+                            version.value = mach_header.Swap(dylib_command->dylib.current_version);
+                            printf("uikit=%u.%u.%u\n", version.major, version.minor, version.patch);
+                        }
+                    }
+                }
+#ifndef LDID_NOFLAGT

                 else if (cmd == LC_ID_DYLIB) {
                     volatile struct dylib_command *dylib_command(reinterpret_cast<struct dylib_command *>(load_command));
 
                 else if (cmd == LC_ID_DYLIB) {
                     volatile struct dylib_command *dylib_command(reinterpret_cast<struct dylib_command *>(load_command));
 


@@ -1610,6 +3541,11 @@ int main(int argc, char *argv[]) {
                         dylib_command->dylib.timestamp = mach_header.Swap(timed);
                     }
                 }
                         dylib_command->dylib.timestamp = mach_header.Swap(timed);
                     }
                 }

+#endif
+            }
+
+            if (flag_d && encryption != NULL) {
+                printf("cryptid=%d\n", mach_header.Swap(encryption->cryptid));

             }
 
             if (flag_D) {
             }
 
             if (flag_D) {


@@ -1634,7 +3570,26 @@ int main(int argc, char *argv[]) {
                     }
             }
 
                     }
             }
 

-            if (flag_s) {
+            if (flag_q) {
+                _assert(signature != NULL);
+
+                uint32_t data = mach_header.Swap(signature->dataoff);
+
+                uint8_t *top = reinterpret_cast<uint8_t *>(mach_header.GetBase());
+                uint8_t *blob = top + data;
+                struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
+
+                for (size_t index(0); index != Swap(super->count); ++index)
+                    if (Swap(super->index[index].type) == CSSLOT_REQUIREMENTS) {
+                        uint32_t begin = Swap(super->index[index].offset);
+                        struct Blob *requirement = reinterpret_cast<struct Blob *>(blob + begin);
+                        // XXX: this is obviously wrong. but like, -Q is also wrong?!
+                        // maybe I can fix all of this just by fixing both -q and -Q?
+                        fwrite(requirement, 1, Swap(requirement->length), stdout);
+                    }
+            }
+
+            if (flag_k) {

                 _assert(signature != NULL);
 
                 uint32_t data = mach_header.Swap(signature->dataoff);
                 _assert(signature != NULL);
 
                 uint32_t data = mach_header.Swap(signature->dataoff);


@@ -1644,19 +3599,122 @@ int main(int argc, char *argv[]) {
                 struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
 
                 for (size_t index(0); index != Swap(super->count); ++index)
                 struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
 
                 for (size_t index(0); index != Swap(super->count); ++index)

-                    if (Swap(super->index[index].type) == CSSLOT_CODEDIRECTORY) {
+                    if (Swap(super->index[index].type) == CSSLOT_SIGNATURESLOT) {

                         uint32_t begin = Swap(super->index[index].offset);
                         uint32_t begin = Swap(super->index[index].offset);

-                        struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin);
+                        struct Blob *signature = reinterpret_cast<struct Blob *>(blob + begin);
+                        fwrite(signature + 1, 1, Swap(signature->length) - sizeof(*signature), stdout);
+                    }
+            }

 
 

-                        uint8_t (*hashes)[SHA_DIGEST_LENGTH] = reinterpret_cast<uint8_t (*)[SHA_DIGEST_LENGTH]>(blob + begin + Swap(directory->hashOffset));
+            if (flag_s) {
+                _assert(signature != NULL);
+
+                auto algorithms(GetAlgorithms());
+
+                uint32_t data = mach_header.Swap(signature->dataoff);
+
+                uint8_t *top = reinterpret_cast<uint8_t *>(mach_header.GetBase());
+                uint8_t *blob = top + data;
+                struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
+
+                for (size_t index(0); index != Swap(super->count); ++index) {
+                    auto type(Swap(super->index[index].type));
+                    if ((type == CSSLOT_CODEDIRECTORY || type >= CSSLOT_ALTERNATE) && type != CSSLOT_SIGNATURESLOT) {
+                        uint32_t begin = Swap(super->index[index].offset);
+                        uint32_t end = index + 1 == Swap(super->count) ? Swap(super->blob.length) : Swap(super->index[index + 1].offset);
+                        struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin + sizeof(Blob));
+                        auto type(directory->hashType);
+                        _assert(type > 0 && type <= algorithms.size());
+                        auto &algorithm(*algorithms[type - 1]);
+
+                        uint8_t *hashes = reinterpret_cast<uint8_t *>(blob + begin + Swap(directory->hashOffset));

                         uint32_t pages = Swap(directory->nCodeSlots);
 
                         uint32_t pages = Swap(directory->nCodeSlots);
 

-                        if (pages != 1)
+                        if (pages != 0) {

                             for (size_t i = 0; i != pages - 1; ++i)
                             for (size_t i = 0; i != pages - 1; ++i)

-                                sha1(hashes[i], top + PageSize_ * i, PageSize_);
-                        if (pages != 0)
-                            sha1(hashes[pages - 1], top + PageSize_ * (pages - 1), ((data - 1) % PageSize_) + 1);
+                                algorithm(hashes + i * algorithm.size_, top + PageSize_ * i, PageSize_);
+                            algorithm(hashes + (pages - 1) * algorithm.size_, top + PageSize_ * (pages - 1), ((data - 1) % PageSize_) + 1);
+                        }

                     }
                     }

+                }
+            }
+
+            if (flag_h) {
+                _assert(signature != NULL);
+
+                auto algorithms(GetAlgorithms());
+
+                uint32_t data = mach_header.Swap(signature->dataoff);
+
+                uint8_t *top = reinterpret_cast<uint8_t *>(mach_header.GetBase());
+                uint8_t *blob = top + data;
+                struct SuperBlob *super = reinterpret_cast<struct SuperBlob *>(blob);
+
+                struct Candidate {
+                    CodeDirectory *directory_;
+                    size_t size_;
+                    Algorithm &algorithm_;
+                    std::string hash_;
+                };
+
+                std::map<uint8_t, Candidate> candidates;
+
+                for (size_t index(0); index != Swap(super->count); ++index) {
+                    auto type(Swap(super->index[index].type));
+                    if ((type == CSSLOT_CODEDIRECTORY || type >= CSSLOT_ALTERNATE) && type != CSSLOT_SIGNATURESLOT) {
+                        uint32_t begin = Swap(super->index[index].offset);
+                        uint32_t end = index + 1 == Swap(super->count) ? Swap(super->blob.length) : Swap(super->index[index + 1].offset);
+                        struct CodeDirectory *directory = reinterpret_cast<struct CodeDirectory *>(blob + begin + sizeof(Blob));
+                        auto type(directory->hashType);
+                        _assert(type > 0 && type <= algorithms.size());
+                        auto &algorithm(*algorithms[type - 1]);
+                        uint8_t hash[algorithm.size_];
+                        algorithm(hash, blob + begin, end - begin);
+                        candidates.insert({type, {directory, end - begin, algorithm, Hex(hash, 20)}});
+                    }
+                }
+
+                _assert(!candidates.empty());
+                auto best(candidates.end());
+                --best;
+
+                const auto directory(best->second.directory_);
+                const auto flags(Swap(directory->flags));
+
+                std::string names;
+                if (flags & kSecCodeSignatureHost)
+                    names += ",host";
+                if (flags & kSecCodeSignatureAdhoc)
+                    names += ",adhoc";
+                if (flags & kSecCodeSignatureForceHard)
+                    names += ",hard";
+                if (flags & kSecCodeSignatureForceKill)
+                    names += ",kill";
+                if (flags & kSecCodeSignatureForceExpiration)
+                    names += ",expires";
+                if (flags & kSecCodeSignatureRestrict)
+                    names += ",restrict";
+                if (flags & kSecCodeSignatureEnforcement)
+                    names += ",enforcement";
+                if (flags & kSecCodeSignatureLibraryValidation)
+                    names += ",library-validation";
+                if (flags & kSecCodeSignatureRuntime)
+                    names += ",runtime";
+
+                printf("CodeDirectory v=%x size=%zd flags=0x%x(%s) hashes=%d+%d location=embedded\n",
+                    Swap(directory->version), best->second.size_, flags, names.empty() ? "none" : names.c_str() + 1, Swap(directory->nCodeSlots), Swap(directory->nSpecialSlots));
+                printf("Hash type=%s size=%d\n", best->second.algorithm_.name(), directory->hashSize);
+
+                std::string choices;
+                for (const auto &candidate : candidates) {
+                    auto choice(candidate.second.algorithm_.name());
+                    choices += ',';
+                    choices += choice;
+                    printf("CandidateCDHash %s=%s\n", choice, candidate.second.hash_.c_str());
+                }
+                printf("Hash choices=%s\n", choices.c_str() + 1);
+
+                printf("CDHash=%s\n", best->second.hash_.c_str());

             }
         }
 
             }
         }
 


@@ -1668,3 +3726,4 @@ int main(int argc, char *argv[]) {
 
     return filee;
 }
 
     return filee;
 }

+#endif