From: Jay Freeman (saurik) <saurik@saurik.com>
Date: Fri, 10 Jan 2014 10:35:41 +0000 (-0800)
Subject: Implement /etc/cycript/setup.d (temporary name).
X-Git-Tag: v0.9.500~77
X-Git-Url: https://git.saurik.com/cycript.git/commitdiff_plain/d00dec149bf35e5ddf0186c62c6b924ecfdd492c?hp=89d16b11d9ce1c739871f92c3170128e0befc96c

Implement /etc/cycript/setup.d (temporary name).
---

diff --git a/Execute.cpp b/Execute.cpp
index 4f2aa91..7641df7 100644
--- a/Execute.cpp
+++ b/Execute.cpp
@@ -22,6 +22,9 @@
 #include "Internal.hpp"
 
 #include <dlfcn.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <unistd.h>
 
 #include "cycript.hpp"
 
@@ -32,6 +35,7 @@
 #include "Execute.hpp"
 
 #include <sys/mman.h>
+#include <sys/stat.h>
 
 #include <iostream>
 #include <set>
@@ -1467,6 +1471,66 @@ JSGlobalContextRef CYGetJSContext(JSContextRef context) {
     return reinterpret_cast<Context *>(JSObjectGetPrivate(CYCastJSObject(context, CYGetProperty(context, CYGetGlobalObject(context), cy_s))))->context_;
 }
 
+extern "C" bool CydgetMemoryParse(const uint16_t **data, size_t *size);
+
+void *CYMapFile(const char *path, size_t *psize) {
+    int fd;
+    _syscall(fd = open(path, O_RDONLY));
+
+    struct stat stat;
+    _syscall(fstat(fd, &stat));
+    size_t size(stat.st_size);
+
+    *psize = size;
+
+    void *base;
+    _syscall(base = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0));
+
+    _syscall(close(fd));
+    return base;
+}
+
+static void CYRunSetups(JSContextRef context) {
+    std::string folder("/etc/cycript/setup.d");
+    DIR *setups(opendir(folder.c_str()));
+    if (setups == NULL)
+        return;
+
+    for (;;) {
+        dirent setup;
+        dirent *result;
+        _syscall(readdir_r(setups, &setup, &result));
+
+        if (result == NULL)
+            break;
+        _assert(result == &setup);
+
+        const char *name(setup.d_name);
+        size_t length(strlen(name));
+        if (length < 4)
+            continue;
+
+        if (name[0] == '.')
+            continue;
+        if (memcmp(name + length - 3, ".cy", 3) != 0)
+            continue;
+
+        std::string script(folder + "/" + name);
+        CYUTF8String utf8;
+        utf8.data = reinterpret_cast<char *>(CYMapFile(script.c_str(), &utf8.size));
+
+        CYPool pool;
+        CYUTF16String utf16(CYPoolUTF16String(pool, utf8));
+        munmap(const_cast<char *>(utf8.data), utf8.size);
+
+        if (CydgetMemoryParse(&utf16.data, &utf16.size))
+            CYExecute(context, pool, CYPoolUTF8String(pool, utf16));
+        free(const_cast<uint16_t *>(utf16.data));
+    }
+
+    _syscall(closedir(setups));
+}
+
 extern "C" void CYSetupContext(JSGlobalContextRef context) {
     CYInitializeDynamic();
 
@@ -1556,6 +1620,8 @@ extern "C" void CYSetupContext(JSGlobalContextRef context) {
         (*hooks_->SetupContext)(context);
 
     CYArrayPush(context, alls, cycript);
+
+    CYRunSetups(context);
 }
 
 JSGlobalContextRef CYGetJSContext() {
diff --git a/String.hpp b/String.hpp
index 12a2b23..7256fe5 100644
--- a/String.hpp
+++ b/String.hpp
@@ -31,6 +31,12 @@ struct CYUTF8String {
     const char *data;
     size_t size;
 
+    CYUTF8String() :
+        data(NULL),
+        size(0)
+    {
+    }
+
     CYUTF8String(const char *data) :
         data(data),
         size(strlen(data))