Unix domain sockets are often walled by sandboxes.

[cycript.git] / Console.cpp

diff --git a/Console.cpp b/Console.cpp
index 463189c25a24ae44f01fd84a5a526c33de0b1848..c3ebd77da5dde602de3a0a7b418142b0d70bb194 100644 (file)
--- a/Console.cpp
+++ b/Console.cpp
@@ -1,5 +1,5 @@
-/* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2015  Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016  Jay Freeman (saurik)

 */
 
 /* GNU Affero General Public License, Version 3 {{{ */
 */
 
 /* GNU Affero General Public License, Version 3 {{{ */


@@ -68,6 +68,7 @@
 #include <mach/mach_time.h>
 #endif
 
 #include <mach/mach_time.h>
 #endif
 

+#include "Code.hpp"

 #include "Driver.hpp"
 #include "Error.hpp"
 #include "Highlight.hpp"
 #include "Driver.hpp"
 #include "Error.hpp"
 #include "Highlight.hpp"


@@ -219,7 +220,9 @@ static void sigint(int) {
         case Parsing:
             longjmp(ctrlc_, 1);
         case Running:
         case Parsing:
             longjmp(ctrlc_, 1);
         case Running:

+#ifndef __ANDROID__

             CYCancel();
             CYCancel();

+#endif

             return;
         case Sending:
             return;
             return;
         case Sending:
             return;


@@ -246,11 +249,23 @@ void Setup(CYOutput &out, CYDriver &driver, CYOptions &options, bool lower) {
         driver.Replace(options);
 }
 
         driver.Replace(options);
 }
 

-static CYUTF8String Run(CYPool &pool, int client, CYUTF8String code) {
-    const char *json;
-    uint32_t size;
+class CYRemote {
+  public:
+    virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) = 0;
+
+    inline CYUTF8String Run(CYPool &pool, const std::string &code) {
+        return Run(pool, CYUTF8String(code.c_str(), code.size()));
+    }
+};
+
+class CYLocalRemote :
+    public CYRemote
+{
+  public:
+    virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) {
+        const char *json;
+        uint32_t size;

 
 

-    if (client == -1) {

         mode_ = Running;
 #ifdef CY_EXECUTE
         json = CYExecute(CYGetJSContext(), pool, code);
         mode_ = Running;
 #ifdef CY_EXECUTE
         json = CYExecute(CYGetJSContext(), pool, code);


@@ -262,63 +277,124 @@ static CYUTF8String Run(CYPool &pool, int client, CYUTF8String code) {
             size = 0;
         else
             size = strlen(json);
             size = 0;
         else
             size = strlen(json);

-    } else {
+
+        return CYUTF8String(json, size);
+    }
+};
+
+class CYSocketRemote :
+    public CYRemote
+{
+  private:
+    int socket_;
+
+  public:
+    CYSocketRemote(const char *host, const char *port) {
+        struct addrinfo hints;
+        memset(&hints, 0, sizeof(hints));
+        hints.ai_family = AF_UNSPEC;
+        hints.ai_socktype = SOCK_STREAM;
+        hints.ai_protocol = 0;
+        hints.ai_flags = 0;
+
+        struct addrinfo *infos;
+        _syscall(getaddrinfo(host, port, &hints, &infos));
+
+        _assert(infos != NULL); try {
+            for (struct addrinfo *info(infos); info != NULL; info = info->ai_next) {
+                socket_ = _syscall(socket(info->ai_family, info->ai_socktype, info->ai_protocol)); try {
+                    _syscall(connect(socket_, info->ai_addr, info->ai_addrlen));
+                    break;
+                } catch (...) {
+                    _syscall(close(socket_));
+                    throw;
+                }
+            }
+        } catch (...) {
+            freeaddrinfo(infos);
+            throw;
+        }
+    }
+
+    virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) {
+        const char *json;
+        uint32_t size;
+

         mode_ = Sending;
         size = code.size;
         mode_ = Sending;
         size = code.size;

-        _assert(CYSendAll(client, &size, sizeof(size)));
-        _assert(CYSendAll(client, code.data, code.size));
+        _assert(CYSendAll(socket_, &size, sizeof(size)));
+        _assert(CYSendAll(socket_, code.data, code.size));

         mode_ = Waiting;
         mode_ = Waiting;

-        _assert(CYRecvAll(client, &size, sizeof(size)));
-        if (size == _not(uint32_t))
+        _assert(CYRecvAll(socket_, &size, sizeof(size)));
+        if (size == _not(uint32_t)) {
+            size = 0;

             json = NULL;
             json = NULL;

-        else {
+        } else {

             char *temp(new(pool) char[size + 1]);
             char *temp(new(pool) char[size + 1]);

-            _assert(CYRecvAll(client, temp, size));
+            _assert(CYRecvAll(socket_, temp, size));

             temp[size] = '\0';
             json = temp;
         }
         mode_ = Working;
             temp[size] = '\0';
             json = temp;
         }
         mode_ = Working;

+
+        return CYUTF8String(json, size);

     }
     }

+};

 
 

-    return CYUTF8String(json, size);
-}
+void InjectLibrary(pid_t, std::ostream &stream, int, const char *const []);

 
 

-static CYUTF8String Run(CYPool &pool, int client, const std::string &code) {
-    return Run(pool, client, CYUTF8String(code.c_str(), code.size()));
-}
+class CYInjectRemote :
+    public CYRemote
+{
+  private:
+    int pid_;
+
+  public:
+    CYInjectRemote(int pid) :
+        pid_(pid)
+    {
+        // XXX: wait
+    }
+
+    virtual CYUTF8String Run(CYPool &pool, CYUTF8String code) {
+        std::ostringstream stream;
+        const char *args[2] = {"-e", code.data};
+        InjectLibrary(pid_, stream, 2, args);
+        std::string json(stream.str());
+        if (!json.empty() && json[json.size() - 1] == '\n')
+            json.resize(json.size() - 1);
+        return CYUTF8String(strdup(json.c_str()), json.size());
+    }
+};

 
 static std::ostream *out_;
 
 
 static std::ostream *out_;
 

-static void Output(CYUTF8String json, std::ostream *out, bool expand = false) {
+static void Output(CYUTF8String json, std::ostream *out, bool reparse = false) {
+    CYPool pool;
+
+    if (reparse) do {
+        CYStream stream(json.data, json.data + json.size);
+        CYDriver driver(pool, stream);
+        if (driver.Parse(CYMarkExpression))
+            break;
+        std::stringbuf str;
+        CYOptions options;
+        CYOutput out(str, options);
+        out.pretty_ = true;
+        out << *driver.context_;
+        std::string data(str.str());
+        json = CYPoolUTF8String(pool, data);
+        if (json.size == 0)
+            json.data = NULL;
+    } while (false);
+

     const char *data(json.data);
     size_t size(json.size);
 
     const char *data(json.data);
     size_t size(json.size);
 

-    if (data == NULL || out == NULL)
+    if (size == 0 || out == NULL)

         return;
 
         return;
 

-    if (!expand ||
-        data[0] != '@' && data[0] != '"' && data[0] != '\'' ||
-        data[0] == '@' && data[1] != '"' && data[1] != '\''
-    )
-        CYLexerHighlight(data, size, *out);
-    else for (size_t i(0); i != size; ++i)
-        if (data[i] != '\\')
-            *out << data[i];
-        else switch(data[++i]) {
-            case '\0': goto done;
-            case '\\': *out << '\\'; break;
-            case '\'': *out << '\''; break;
-            case '"': *out << '"'; break;
-            case 'b': *out << '\b'; break;
-            case 'f': *out << '\f'; break;
-            case 'n': *out << '\n'; break;
-            case 'r': *out << '\r'; break;
-            case 't': *out << '\t'; break;
-            case 'v': *out << '\v'; break;
-            default: *out << '\\'; --i; break;
-        }
-
-  done:
+    CYLexerHighlight(data, size, *out);

     *out << std::endl;
 }
 
     *out << std::endl;
 }
 


@@ -326,10 +402,10 @@ int (*append_history$)(int, const char *);
 
 static std::string command_;
 
 
 static std::string command_;
 

-static int client_;
+static CYRemote *remote_;

 
 static CYUTF8String Run(CYPool &pool, const std::string &code) {
 
 static CYUTF8String Run(CYPool &pool, const std::string &code) {

-    return Run(pool, client_, code);
+    return remote_->Run(pool, code);

 }
 
 static char **Complete(const char *word, int start, int end) {
 }
 
 static char **Complete(const char *word, int start, int end) {


@@ -361,7 +437,7 @@ class History {
                 if (*character == '\x01') *character = '\n';
     }
 
                 if (*character == '\x01') *character = '\n';
     }
 

-    ~History() {
+    ~History() { try {

         for (HIST_ENTRY *history((history_set_pos(0), current_history())); history; history = next_history())
             for (char *character(history->line); *character; ++character)
                 if (*character == '\n') *character = '\x01';
         for (HIST_ENTRY *history((history_set_pos(0), current_history())); history; history = next_history())
             for (char *character(history->line); *character; ++character)
                 if (*character == '\n') *character = '\x01';


@@ -373,22 +449,73 @@ class History {
         } else {
             _assert(write_history(histfile_.c_str()) == 0);
         }
         } else {
             _assert(write_history(histfile_.c_str()) == 0);
         }

-    }
+    } catch (const CYException &error) {
+        CYPool pool;
+        std::cout << error.PoolCString(pool) << std::endl;
+    } }

 
     void operator +=(std::string command) {
 
     void operator +=(std::string command) {

+        if (HIST_ENTRY *entry = history_get(where_history()))
+            if (command == entry->line)
+                return;

         add_history(command.c_str());
         ++histlines_;
     }
 };
 
         add_history(command.c_str());
         ++histlines_;
     }
 };
 

+template <typename Type_>
+static Type_ *CYmemrchr(Type_ *data, Type_ value, size_t size) {
+    while (size != 0)
+        if (data[--size] == value)
+            return data + size;
+    return NULL;
+}
+
+static void _lblcall(int (*command)(int, int), int count, int key) {
+    int last(_rl_last_c_pos);
+    // rl_rubout crashes in _rl_erase_at_end_of_line if _rl_last_c_pos != 0
+    if (command == &rl_rubout)
+        _rl_last_c_pos = 0;
+    for (int i(0); i != count; ++i)
+        if (command(1, key) != 0)
+            _assert(false);
+    _rl_last_c_pos = last;
+}
+

 static int CYConsoleKeyReturn(int count, int key) {
 static int CYConsoleKeyReturn(int count, int key) {

-    rl_insert(count, '\n');
+    if (rl_point != rl_end) {
+        if (memchr(rl_line_buffer, '\n', rl_end) == NULL) {
+            _lblcall(&rl_newline, count, key);
+            return 0;
+        }
+
+      insert:
+        char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (before == NULL)
+            before = rl_line_buffer;
+
+        int space(before + 1 - rl_line_buffer);
+        while (space != rl_point && rl_line_buffer[space] == ' ')
+            ++space;

 
 

-    if (rl_end != 0 && rl_point == rl_end && rl_line_buffer[0] == '?')
-        rl_done = 1;
-    else if (rl_point == rl_end) {
+        int adjust(rl_line_buffer + space - 1 - before);
+        if (space == rl_point && adjust != 0)
+            _lblcall(&rl_rubout, adjust, '\b');
+
+        _lblcall(&rl_insert, count, '\n');
+        if (adjust != 0)
+            _lblcall(&rl_insert, adjust, ' ');
+
+        return 0;
+    }
+
+    bool done(false);
+    if (rl_line_buffer[0] == '?')
+        done = true;
+    else {

         std::string command(rl_line_buffer, rl_end);
         std::string command(rl_line_buffer, rl_end);

-        std::istringstream stream(command);
+        command += '\n';
+        std::stringbuf stream(command);

 
         size_t last(std::string::npos);
         for (size_t i(0); i != std::string::npos; i = command.find('\n', i + 1))
 
         size_t last(std::string::npos);
         for (size_t i(0); i != std::string::npos; i = command.find('\n', i + 1))


@@ -399,71 +526,174 @@ static int CYConsoleKeyReturn(int count, int key) {
         if (driver.Parse() || !driver.errors_.empty())
             for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) {
                 if (error->location_.begin.line != last + 1)
         if (driver.Parse() || !driver.errors_.empty())
             for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) {
                 if (error->location_.begin.line != last + 1)

-                    rl_done = 1;
+                    done = true;

                 break;
             }
         else
                 break;
             }
         else

-            rl_done = 1;
+            done = true;

     }
 
     }
 

-    if (rl_done)
-        std::cout << std::endl;
-    return 0;
-}
+    if (done) {
+        _lblcall(&rl_newline, count, key);
+        return 0;
+    }

 
 

-template <typename Type_>
-static Type_ *CYmemrchr(Type_ *data, Type_ value, size_t size) {
-    while (size != 0)
-        if (data[--size] == value)
-            return data + size;
-    return NULL;
+    // XXX: this was the most obvious fix, but is seriously dumb
+    goto insert;

 }
 
 static int CYConsoleKeyUp(int count, int key) {
 }
 
 static int CYConsoleKeyUp(int count, int key) {

-    char *after(CYmemrchr(rl_line_buffer, '\n', rl_point));
-    if (after == NULL) {
-        if (int value = rl_get_previous_history(count, key))
-            return value;
-        return 0;
-    }
+    for (; count != 0; --count) {
+        char *after(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (after == NULL) {
+            if (int value = rl_get_previous_history(1, key))
+                return value;
+            continue;
+        }

 
 

-    char *before(CYmemrchr(rl_line_buffer, '\n', after - rl_line_buffer));
-    if (before == NULL)
-        before = rl_line_buffer - 1;
+        char *before(CYmemrchr(rl_line_buffer, '\n', after - rl_line_buffer));
+        if (before == NULL)
+            before = rl_line_buffer - 1;

 
 

-    ptrdiff_t offset(rl_line_buffer + rl_point - after);
-    if (offset > after - before)
-        rl_point = after - 1 - rl_line_buffer;
-    else
-        rl_point = before + offset - rl_line_buffer;
+        ptrdiff_t offset(rl_line_buffer + rl_point - after);
+        if (offset > after - before)
+            rl_point = after - rl_line_buffer;
+        else
+            rl_point = before + offset - rl_line_buffer;
+    }

 
     return 0;
 }
 
 static int CYConsoleKeyDown(int count, int key) {
 
     return 0;
 }
 
 static int CYConsoleKeyDown(int count, int key) {

-    char *after(static_cast<char *>(memchr(rl_line_buffer + rl_point, '\n', rl_end - rl_point)));
-    if (after == NULL) {
-        if (int value = rl_get_next_history(count, key))
-            return value;
-        rl_point = 0;
-        return 0;
+    for (; count != 0; --count) {
+        char *after(static_cast<char *>(memchr(rl_line_buffer + rl_point, '\n', rl_end - rl_point)));
+        if (after == NULL) {
+            int where(where_history());
+            if (int value = rl_get_next_history(1, key))
+                return value;
+            if (where != where_history()) {
+                char *first(static_cast<char *>(memchr(rl_line_buffer, '\n', rl_end)));
+                if (first != NULL)
+                    rl_point = first - 1 - rl_line_buffer;
+            }
+            continue;
+        }
+
+        char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (before == NULL)
+            before = rl_line_buffer - 1;
+
+        char *next(static_cast<char *>(memchr(after + 1, '\n', rl_line_buffer + rl_end - after - 1)));
+        if (next == NULL)
+            next = rl_line_buffer + rl_end;
+
+        ptrdiff_t offset(rl_line_buffer + rl_point - before);
+        if (offset > next - after)
+            rl_point = next - rl_line_buffer;
+        else
+            rl_point = after + offset - rl_line_buffer;

     }
 
     }
 

-    char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
-    if (before == NULL)
-        before = rl_line_buffer - 1;
+    return 0;
+}

 
 

-    ptrdiff_t offset(rl_line_buffer + rl_point - before);
-    if (offset > rl_line_buffer + rl_end - after)
-        rl_point = rl_end;
-    else
-        rl_point = after + offset - rl_line_buffer;
+static int CYConsoleLineBegin(int count, int key) {
+    while (rl_point != 0 && rl_line_buffer[rl_point - 1] != '\n')
+        --rl_point;
+    return 0;
+}
+
+static int CYConsoleLineEnd(int count, int key) {
+    while (rl_point != rl_end && rl_line_buffer[rl_point] != '\n')
+        ++rl_point;
+    if (rl_point != rl_end && rl_editing_mode == 0)
+        --rl_point;
+    return 0;
+}
+
+static int CYConsoleKeyBack(int count, int key) {
+    for (; count != 0; --count) {
+        if (rl_point == 0)
+            return 1;

 
 

+        char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (before == NULL) {
+            int adjust(std::min(count, rl_point));
+            _lblcall(&rl_rubout, adjust, key);
+            count -= adjust - 1;
+            continue;
+        }
+
+        int start(before + 1 - rl_line_buffer);
+        if (start == rl_point) rubout: {
+            _lblcall(&rl_rubout, 1, key);
+            continue;
+        }
+
+        for (int i(start); i != rl_point; ++i)
+            if (rl_line_buffer[i] != ' ')
+                goto rubout;
+        _lblcall(&rl_rubout, (rl_point - start) % 4 ?: 4, key);
+    }
+
+    return 0;
+}
+
+static int CYConsoleKeyTab(int count, int key) {
+    char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+    if (before == NULL) complete:
+        return rl_complete_internal(rl_completion_mode(&CYConsoleKeyTab));
+    int start(before + 1 - rl_line_buffer);
+    for (int i(start); i != rl_point; ++i)
+        if (rl_line_buffer[i] != ' ')
+            goto complete;
+    _lblcall(&rl_insert, 4 - (rl_point - start) % 4, ' ');

     return 0;
 }
 
     return 0;
 }
 

+static void CYConsoleRemapBind(Keymap map, rl_command_func_t *from, rl_command_func_t *to) {
+    char **keyseqs(rl_invoking_keyseqs_in_map(from, map));
+    if (keyseqs == NULL)
+        return;
+    for (char **keyseq(keyseqs); *keyseq != NULL; ++keyseq) {
+        rl_bind_keyseq_in_map(*keyseq, to, map);
+        free(*keyseq);
+    }
+    free(keyseqs);
+}
+
+static void CYConsoleRemapKeys(Keymap map) {
+    CYConsoleRemapBind(map, &rl_beg_of_line, &CYConsoleLineBegin);
+    CYConsoleRemapBind(map, &rl_end_of_line, &CYConsoleLineEnd);
+
+    CYConsoleRemapBind(map, &rl_get_previous_history, &CYConsoleKeyUp);
+    CYConsoleRemapBind(map, &rl_get_next_history, &CYConsoleKeyDown);
+
+    CYConsoleRemapBind(map, &rl_rubout, &CYConsoleKeyBack);
+    CYConsoleRemapBind(map, &rl_complete, &CYConsoleKeyTab);
+}
+
+static void CYConsolePrepTerm(int meta) {
+    rl_prep_terminal(meta);
+
+    CYConsoleRemapKeys(emacs_standard_keymap);
+    CYConsoleRemapKeys(emacs_meta_keymap);
+    CYConsoleRemapKeys(emacs_ctlx_keymap);
+    CYConsoleRemapKeys(vi_insertion_keymap);
+    CYConsoleRemapKeys(vi_movement_keymap);
+}
+
+static void CYOutputRun(const std::string &code, bool reparse = false) {
+    CYPool pool;
+    Output(Run(pool, code), &std::cout, reparse);
+}
+

 static void Console(CYOptions &options) {
     std::string basedir;
 static void Console(CYOptions &options) {
     std::string basedir;

+#ifdef __ANDROID__
+    basedir = "/data/local/tmp";
+#else

     if (const char *home = getenv("HOME"))
         basedir = home;
     else {
     if (const char *home = getenv("HOME"))
         basedir = home;
     else {


@@ -474,6 +704,7 @@ static void Console(CYOptions &options) {
             passwd = getpwuid(getuid());
         basedir = passwd->pw_dir;
     }
             passwd = getpwuid(getuid());
         basedir = passwd->pw_dir;
     }

+#endif

 
     basedir += "/.cycript";
     mkdir(basedir.c_str(), 0700);
 
     basedir += "/.cycript";
     mkdir(basedir.c_str(), 0700);


@@ -485,49 +716,41 @@ static void Console(CYOptions &options) {
 
     bool bypass(false);
     bool debug(false);
 
     bool bypass(false);
     bool debug(false);

-    bool expand(false);

     bool lower(true);
     bool lower(true);

+    bool reparse(false);

 
     out_ = &std::cout;
 
     rl_completer_word_break_characters = break_;
     rl_attempted_completion_function = &Complete;
 
     out_ = &std::cout;
 
     rl_completer_word_break_characters = break_;
     rl_attempted_completion_function = &Complete;

-    rl_bind_key('\t', rl_complete);
-
-    rl_redisplay_function = CYDisplayUpdate;

 
 

-#if defined (__MSDOS__)
-    rl_bind_keyseq("\033[0A", &CYConsoleKeyUp);
-    rl_bind_keyseq("\033[0D", &CYConsoleKeyDown);
-#endif
-    rl_bind_keyseq("\033[A", &CYConsoleKeyUp);
-    rl_bind_keyseq("\033[B", &CYConsoleKeyDown);
-    rl_bind_keyseq("\033OA", &CYConsoleKeyUp);
-    rl_bind_keyseq("\033OB", &CYConsoleKeyDown);
-#if defined (__MINGW32__)
-    rl_bind_keyseq("\340H", &CYConsoleKeyUp);
-    rl_bind_keyseq("\340P", &CYConsoleKeyDown);
-    rl_bind_keyseq("\\000H", &CYConsoleKeyUp);
-    rl_bind_keyseq("\\000P", &CYConsoleKeyDown);
-#endif
+    if (cur_term != NULL) {
+        rl_redisplay_function = CYDisplayUpdate;
+        rl_prep_term_function = CYConsolePrepTerm;
+    }

 
 

-    struct sigaction action;
-    sigemptyset(&action.sa_mask);
-    action.sa_handler = &sigint;
-    action.sa_flags = 0;
-    sigaction(SIGINT, &action, NULL);
+    CYOutputRun("");

 
     for (;;) {
 
     for (;;) {

+        struct sigaction action;
+        sigemptyset(&action.sa_mask);
+        action.sa_handler = &sigint;
+        action.sa_flags = 0;
+        sigaction(SIGINT, &action, NULL);
+

         if (setjmp(ctrlc_) != 0) {
             mode_ = Working;
             *out_ << std::endl;
             continue;
         }
 
         if (setjmp(ctrlc_) != 0) {
             mode_ = Working;
             *out_ << std::endl;
             continue;
         }
 

-        if (bypass)
+        if (bypass) {

             rl_bind_key('\r', &rl_newline);
             rl_bind_key('\r', &rl_newline);

-        else
+            rl_bind_key('\n', &rl_newline);
+        } else {

             rl_bind_key('\r', &CYConsoleKeyReturn);
             rl_bind_key('\r', &CYConsoleKeyReturn);

+            rl_bind_key('\n', &CYConsoleKeyReturn);
+        }

 
         mode_ = Parsing;
         char *line(readline("cy# "));
 
         mode_ = Parsing;
         char *line(readline("cy# "));


@@ -540,11 +763,9 @@ static void Console(CYOptions &options) {
 
         std::string command(line);
         free(line);
 
         std::string command(line);
         free(line);

-        _assert(!command.empty());
-        _assert(command[command.size() - 1] == '\n');
-        command.resize(command.size() - 1);

         if (command.empty())
             continue;
         if (command.empty())
             continue;

+        history += command;

 
         if (command[0] == '?') {
             std::string data(command.substr(1));
 
         if (command[0] == '?') {
             std::string data(command.substr(1));


@@ -562,23 +783,22 @@ static void Console(CYOptions &options) {
                 *out_ << "done." << std::endl;
             } else if (data == "exit") {
                 return;
                 *out_ << "done." << std::endl;
             } else if (data == "exit") {
                 return;

-            } else if (data == "expand") {
-                expand = !expand;
-                *out_ << "expand == " << (expand ? "true" : "false") << std::endl;

             } else if (data == "lower") {
                 lower = !lower;
                 *out_ << "lower == " << (lower ? "true" : "false") << std::endl;
             } else if (data == "lower") {
                 lower = !lower;
                 *out_ << "lower == " << (lower ? "true" : "false") << std::endl;

+            } else if (data == "reparse") {
+                reparse = !reparse;
+                *out_ << "reparse == " << (reparse ? "true" : "false") << std::endl;

             }
 
             }
 

-            history += command;

             continue;
         }
 
         std::string code;
         if (bypass)
             code = command;
             continue;
         }
 
         std::string code;
         if (bypass)
             code = command;

-        else {
-            std::istringstream stream(command);
+        else try {
+            std::stringbuf stream(command);

 
             CYPool pool;
             CYDriver driver(pool, stream);
 
             CYPool pool;
             CYDriver driver(pool, stream);


@@ -606,7 +826,6 @@ static void Console(CYOptions &options) {
                     std::cerr << "  | ";
                     std::cerr << error->message_ << std::endl;
 
                     std::cerr << "  | ";
                     std::cerr << error->message_ << std::endl;
 

-                    history += command;

                     break;
                 }
 
                     break;
                 }
 


@@ -621,23 +840,22 @@ static void Console(CYOptions &options) {
             Setup(out, driver, options, lower);
             out << *driver.script_;
             code = str.str();
             Setup(out, driver, options, lower);
             out << *driver.script_;
             code = str.str();

+        } catch (const CYException &error) {
+            CYPool pool;
+            std::cout << error.PoolCString(pool) << std::endl;
+            continue;

         }
 
         }
 

-        history += command;
-

         if (debug) {
             std::cout << "cy= ";
             CYLexerHighlight(code.c_str(), code.size(), std::cout);
             std::cout << std::endl;
         }
 
         if (debug) {
             std::cout << "cy= ";
             CYLexerHighlight(code.c_str(), code.size(), std::cout);
             std::cout << std::endl;
         }
 

-        CYPool pool;
-        Output(Run(pool, client_, code), &std::cout, expand);
+        CYOutputRun(code, reparse);

     }
 }
 
     }
 }
 

-void InjectLibrary(pid_t, int, const char *const []);
-

 static uint64_t CYGetTime() {
 #ifdef __APPLE__
     return mach_absolute_time();
 static uint64_t CYGetTime() {
 #ifdef __APPLE__
     return mach_absolute_time();


@@ -663,6 +881,8 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
     const char *host(NULL);
     const char *port(NULL);
 
     const char *host(NULL);
     const char *port(NULL);
 

+    const char *argv0(argv[0]);
+

     optind = 1;
 
     for (;;) {
     optind = 1;
 
     for (;;) {


@@ -841,102 +1061,28 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
     if (argc == 0)
         script = NULL;
     else {
     if (argc == 0)
         script = NULL;
     else {

-#ifdef CY_EXECUTE
-        // XXX: const_cast?! wtf gcc :(
-        CYSetArgs(argc - 1, const_cast<const char **>(argv + 1));
-#endif

         script = argv[0];
         if (strcmp(script, "-") == 0)
             script = NULL;
         script = argv[0];
         if (strcmp(script, "-") == 0)
             script = NULL;

+        --argc;
+        ++argv;

     }
 
     }
 

-#ifdef CY_ATTACH
-    if (pid == _not(pid_t))
-        client_ = -1;
-    else {
-        struct Socket {
-            int fd_;
-
-            Socket(int fd) :
-                fd_(fd)
-            {
-            }
-
-            ~Socket() {
-                close(fd_);
-            }
-
-            operator int() {
-                return fd_;
-            }
-        } server(_syscall(socket(PF_UNIX, SOCK_STREAM, 0)));
-
-        struct sockaddr_un address;
-        memset(&address, 0, sizeof(address));
-        address.sun_family = AF_UNIX;
-
-        const char *tmp;
-#if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
-        tmp = "/Library/Caches";
-#else
-        tmp = "/tmp";
+#ifdef CY_EXECUTE
+    // XXX: const_cast?! wtf gcc :(
+    CYSetArgs(argv0, script, argc, const_cast<const char **>(argv));

 #endif
 
 #endif
 

-        sprintf(address.sun_path, "%s/.s.cy.%u", tmp, getpid());
-        unlink(address.sun_path);
-
-        struct File {
-            const char *path_;
-
-            File(const char *path) :
-                path_(path)
-            {
-            }
-
-            ~File() {
-                unlink(path_);
-            }
-        } file(address.sun_path);
-
-        _syscall(bind(server, reinterpret_cast<sockaddr *>(&address), SUN_LEN(&address)));
-        _syscall(chmod(address.sun_path, 0777));
-
-        _syscall(listen(server, 1));
-        const char *const argv[] = {address.sun_path, NULL};
-        InjectLibrary(pid, 1, argv);
-        client_ = _syscall(accept(server, NULL, NULL));
-    }
-#else
-    client_ = -1;
+#ifdef CY_ATTACH
+    if (remote_ == NULL && pid != _not(pid_t))
+        remote_ = new CYInjectRemote(pid);

 #endif
 
 #endif
 

-    if (client_ == -1 && host != NULL && port != NULL) {
-        struct addrinfo hints;
-        memset(&hints, 0, sizeof(hints));
-        hints.ai_family = AF_UNSPEC;
-        hints.ai_socktype = SOCK_STREAM;
-        hints.ai_protocol = 0;
-        hints.ai_flags = 0;
-
-        struct addrinfo *infos;
-        _syscall(getaddrinfo(host, port, &hints, &infos));
+    if (remote_ == NULL && host != NULL && port != NULL)
+        remote_ = new CYSocketRemote(host, port);

 
 

-        _assert(infos != NULL); try {
-            for (struct addrinfo *info(infos); info != NULL; info = info->ai_next) {
-                int client(_syscall(socket(info->ai_family, info->ai_socktype, info->ai_protocol))); try {
-                    _syscall(connect(client, info->ai_addr, info->ai_addrlen));
-                    client_ = client;
-                    break;
-                } catch (...) {
-                    _syscall(close(client));
-                    throw;
-                }
-            }
-        } catch (...) {
-            freeaddrinfo(infos);
-            throw;
-        }
-    }
+    if (remote_ == NULL)
+        remote_ = new CYLocalRemote();

 
     if (script == NULL && tty)
         Console(options);
 
     if (script == NULL && tty)
         Console(options);


@@ -963,7 +1109,7 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
                 stream = new std::istringstream(buffer.str());
 
                 CYPool pool;
                 stream = new std::istringstream(buffer.str());
 
                 CYPool pool;

-                CYDriver driver(pool, *stream, script);
+                CYDriver driver(pool, *stream->rdbuf(), script);

                 Setup(driver);
 
                 uint64_t begin(CYGetTime());
                 Setup(driver);
 
                 uint64_t begin(CYGetTime());


@@ -989,7 +1135,7 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
         }
 
         CYPool pool;
         }
 
         CYPool pool;

-        CYDriver driver(pool, *stream, script);
+        CYDriver driver(pool, *stream->rdbuf(), script);

         Setup(driver);
 
         bool failed(driver.Parse());
         Setup(driver);
 
         bool failed(driver.Parse());


@@ -997,6 +1143,7 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
         if (failed || !driver.errors_.empty()) {
             for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i)
                 std::cerr << i->location_.begin << ": " << i->message_ << std::endl;
         if (failed || !driver.errors_.empty()) {
             for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i)
                 std::cerr << i->location_.begin << ": " << i->message_ << std::endl;

+            return 1;

         } else if (driver.script_ != NULL) {
             std::stringbuf str;
             CYOutput out(str, options);
         } else if (driver.script_ != NULL) {
             std::stringbuf str;
             CYOutput out(str, options);


@@ -1006,7 +1153,7 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
             if (compile)
                 std::cout << code;
             else {
             if (compile)
                 std::cout << code;
             else {

-                CYUTF8String json(Run(pool, client_, code));
+                CYUTF8String json(Run(pool, code));

                 if (CYStartsWith(json, "throw ")) {
                     CYLexerHighlight(json.data, json.size, std::cerr);
                     std::cerr << std::endl;
                 if (CYStartsWith(json, "throw ")) {
                     CYLexerHighlight(json.data, json.size, std::cerr);
                     std::cerr << std::endl;


@@ -1019,7 +1166,7 @@ int Main(int argc, char * const argv[], char const * const envp[]) {
     return 0;
 }
 
     return 0;
 }
 

-int main(int argc, char * const argv[], char const * const envp[]) {
+_visible int main(int argc, char * const argv[], char const * const envp[]) {

     try {
         return Main(argc, argv, envp);
     } catch (const CYException &error) {
     try {
         return Main(argc, argv, envp);
     } catch (const CYException &error) {