-/* Cycript - Remove Execution Server and Disassembler
- * Copyright (C) 2009 Jay Freeman (saurik)
+/* Cycript - The Truly Universal Scripting Language
+ * Copyright (C) 2009-2016 Jay Freeman (saurik)
*/
-/* Modified BSD License {{{ */
+/* GNU Affero General Public License, Version 3 {{{ */
/*
- * Redistribution and use in source and binary
- * forms, with or without modification, are permitted
- * provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the
- * above copyright notice, this list of conditions
- * and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions
- * and the following disclaimer in the documentation
- * and/or other materials provided with the
- * distribution.
- * 3. The name of the author may not be used to endorse
- * or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS''
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
- * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+**/
/* }}} */
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#include "minimal/stdlib.h"
-
-#include <apr-1/apr_strings.h>
-
-#include <string.h>
-
#include "sig/parse.hpp"
+#include "Error.hpp"
-namespace sig {
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <sstream>
-void (*sig_aggregate)(apr_pool_t *pool, enum Primitive primitive, const char *name, struct Signature *signature, const char *types) = NULL;
+namespace sig {
-void Parse_(apr_pool_t *pool, struct Signature *signature, const char **name, char eos);
-struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named);
+void Parse_(CYPool &pool, struct Signature *signature, const char **name, char eos, Callback callback);
+struct Type *Parse_(CYPool &pool, const char **name, char eos, bool named, Callback callback);
/* XXX: I really screwed up this time */
-void *prealloc_(apr_pool_t *pool, void *odata, size_t osize, size_t nsize) {
- void *ndata = apr_palloc(pool, nsize);
+void *prealloc_(CYPool &pool, void *odata, size_t osize, size_t nsize) {
+ void *ndata(pool.malloc<void>(nsize));
memcpy(ndata, odata, osize);
return ndata;
}
-void Parse_(apr_pool_t *pool, struct Signature *signature, const char **name, char eos) {
+void Parse_(CYPool &pool, struct Signature *signature, const char **name, char eos, Callback callback) {
_assert(*name != NULL);
- bool named = **name == '"';
+ // XXX: this is just a stupid check :(
+ bool named(**name == '"');
signature->elements = NULL;
signature->count = 0;
if (**name != '"')
element->name = NULL;
else {
- char *quote = strchr(++*name, '"');
- element->name = apr_pstrmemdup(pool, *name, quote - *name);
+ const char *quote = strchr(++*name, '"');
+ element->name = pool.strmemdup(*name, quote - *name);
*name = quote + 1;
}
- element->type = Parse_(pool, name, eos, named);
+ element->type = Parse_(pool, name, eos, named, callback);
if (**name < '0' || **name > '9')
element->offset = _not(size_t);
}
}
-struct Type *Parse_(apr_pool_t *pool, const char **name, char eos, bool named) {
- char next = *(*name)++;
- if (next == '?')
- return NULL;
+Type *Parse_(CYPool &pool, const char **encoding, char eos, bool named, Callback callback) {
+ char next = *(*encoding)++;
- struct Type *type = (struct Type *) apr_palloc(pool, sizeof(struct Type));
- _assert(type != NULL);
- memset(type, 0, sizeof(struct Type));
+ Type *type;
+ uint8_t flags(0);
parse:
switch (next) {
- case '#': type->primitive = typename_P; break;
+ case '?': type = new(pool) Unknown(); break;
+
+#ifdef CY_OBJECTIVEC
+ case '#': type = new(pool) Meta(); break;
+#endif
case '(':
- type->primitive = union_P;
+ type = new(pool) Aggregate(true);
next = ')';
goto aggregate;
- case '*': type->primitive = string_P; break;
- case ':': type->primitive = selector_P; break;
+ case '*': type = new(pool) String(); break;
- case '@':
- if (**name == '"') {
- char *quote = strchr(*name + 1, '"');
- if (!named || quote[1] == eos || quote[1] == '"') {
- type->name = apr_pstrmemdup(pool, *name + 1, quote - *name - 1);
- *name = quote + 1;
+#ifdef CY_OBJECTIVEC
+ case ':': type = new(pool) Selector(); break;
+
+ case '@': {
+ char next(**encoding);
+
+ if (next == '?') {
+ type = new(pool) Block();
+ ++*encoding;
+ } else {
+ const char *name;
+ if (next != '"')
+ name = NULL;
+ else {
+ const char *quote = strchr(*encoding + 1, '"');
+ if (quote == NULL)
+ CYThrow("unterminated specific id type {%s}", *encoding - 10);
+ else if (!named || quote[1] == eos || quote[1] == '"') {
+ name = pool.strmemdup(*encoding + 1, quote - *encoding - 1);
+ *encoding = quote + 1;
+ } else {
+ name = NULL;
+ }
}
+
+ type = new(pool) Object(name);
}
- type->primitive = object_P;
- break;
+ } break;
+#endif
- case 'B': type->primitive = boolean_P; break;
- case 'C': type->primitive = uchar_P; break;
- case 'I': type->primitive = uint_P; break;
- case 'L': type->primitive = ulong_P; break;
- case 'Q': type->primitive = ulonglong_P; break;
- case 'S': type->primitive = ushort_P; break;
-
- case '[':
- type->primitive = array_P;
- type->data.data.size = strtoul(*name, (char **) name, 10);
- type->data.data.type = Parse_(pool, name, eos, false);
- if (**name != ']') {
- printf("']' != \"%s\"\n", *name);
- _assert(false);
- }
- ++*name;
- break;
+ case 'B': type = new(pool) Primitive<bool>(); break;
+ case 'C': type = new(pool) Primitive<unsigned char>(); break;
+ case 'I': type = new(pool) Primitive<unsigned int>(); break;
+ case 'L': type = new(pool) Primitive<unsigned long>(); break;
+ case 'Q': type = new(pool) Primitive<unsigned long long>(); break;
+ case 'S': type = new(pool) Primitive<unsigned short>(); break;
+
+ case '[': {
+ size_t size(strtoul(*encoding, (char **) encoding, 10));
+ type = new(pool) Array(*Parse_(pool, encoding, eos, false, callback), size);
+ if (**encoding != ']')
+ CYThrow("']' != \"%s\"", *encoding);
+ ++*encoding;
+ } break;
case '^':
- type->primitive = pointer_P;
- if (**name == 'v') {
- type->data.data.type = NULL;
- ++*name;
- } else if (**name == '"') {
- type->data.data.type = NULL;
- } else {
- type->data.data.type = Parse_(pool, name, eos, named);
+ if (**encoding == '"')
+ _assert(false); // XXX: why is this here?!?
+ else {
+ type = Parse_(pool, encoding, eos, named, callback);
+#ifdef CY_OBJECTIVEC
+ Aggregate *aggregate(dynamic_cast<Aggregate *>(type));
+ if (aggregate != NULL && strcmp(aggregate->name, "_objc_class") == 0)
+ type = new(pool) Meta();
+ else
+#endif
+ type = new(pool) Pointer(*type);
}
break;
case 'b':
- type->primitive = bit_P;
- type->data.data.size = strtoul(*name, (char **) name, 10);
+ type = new(pool) Bits(strtoul(*encoding, (char **) encoding, 10));
break;
- case 'c': type->primitive = char_P; break;
- case 'd': type->primitive = double_P; break;
- case 'f': type->primitive = float_P; break;
- case 'i': type->primitive = int_P; break;
- case 'l': type->primitive = long_P; break;
- case 'q': type->primitive = longlong_P; break;
- case 's': type->primitive = short_P; break;
- case 'v': type->primitive = void_P; break;
+ case 'c': type = new(pool) Primitive<signed char>(); break;
+ case 'd': type = new(pool) Primitive<double>(); break;
+ case 'f': type = new(pool) Primitive<float>(); break;
+ case 'i': type = new(pool) Primitive<signed int>(); break;
+ case 'l': type = new(pool) Primitive<signed long>(); break;
+ case 'q': type = new(pool) Primitive<signed long long>(); break;
+ case 's': type = new(pool) Primitive<short>(); break;
+ case 'v': type = new(pool) Void(); break;
+
+#ifdef __SIZEOF_INT128__
+ case 't': type = new(pool) Primitive<signed __int128>(); break;
+ case 'T': type = new(pool) Primitive<unsigned __int128>(); break;
+#endif
case '{':
- type->primitive = struct_P;
+ type = new(pool) Aggregate(false);
next = '}';
goto aggregate;
aggregate: {
+ Aggregate *aggregate(static_cast<Aggregate *>(type));
+
char end = next;
- const char *begin = *name;
- do next = *(*name)++;
- while (
- next != '=' &&
- next != '}'
- );
- size_t length = *name - begin - 1;
+ const char *begin = *encoding;
+ do switch (next = *(*encoding)++) {
+ case '\0':
+ _assert(false);
+ case '}':
+ // XXX: this is actually a type reference
+ aggregate->signature.count = _not(size_t);
+ next = '='; // this is a "break". I'm sorry
+ } while (next != '=');
+
+ size_t length = *encoding - begin - 1;
if (strncmp(begin, "?", length) != 0)
- type->name = (char *) apr_pstrmemdup(pool, begin, length);
+ aggregate->name = (char *) pool.strmemdup(begin, length);
+
+ if (aggregate->signature.count == _not(size_t))
+ aggregate->signature.elements = NULL;
else
- type->name = NULL;
+ Parse_(pool, &aggregate->signature, encoding, end, callback);
- char *types;
- if (next != '=')
- types = NULL;
- else {
- const char *temp = *name;
- Parse_(pool, &type->data.signature, name, end);
- types = (char *) apr_pstrmemdup(pool, temp, *name - temp - 1);
- }
+ // XXX: this is a hack to support trivial unions
+ if (aggregate->signature.count <= 1)
+ aggregate->overlap = false;
- if (type->name != NULL && sig_aggregate != NULL) {
- char *angle = strchr(type->name, '<');
- if (angle == NULL)
- (*sig_aggregate)(pool, type->primitive, type->name, &type->data.signature, types);
- else {
- angle = (char *) apr_pstrmemdup(pool, type->name, angle - type->name);
- (*sig_aggregate)(pool, type->primitive, angle, &type->data.signature, types);
- }
- }
+ if (callback != NULL)
+ type = (*callback)(pool, aggregate);
} break;
- case 'N': type->flags |= JOC_TYPE_INOUT; goto next;
- case 'n': type->flags |= JOC_TYPE_IN; goto next;
- case 'O': type->flags |= JOC_TYPE_BYCOPY; goto next;
- case 'o': type->flags |= JOC_TYPE_OUT; goto next;
- case 'R': type->flags |= JOC_TYPE_BYREF; goto next;
- case 'r': type->flags |= JOC_TYPE_CONST; goto next;
- case 'V': type->flags |= JOC_TYPE_ONEWAY; goto next;
+ case 'r': flags |= JOC_TYPE_CONST; goto next;
+
+ case 'n': flags |= JOC_TYPE_IN; goto next;
+ case 'N': flags |= JOC_TYPE_INOUT; goto next;
+ case 'o': flags |= JOC_TYPE_OUT; goto next;
+ case 'O': flags |= JOC_TYPE_BYCOPY; goto next;
+ case 'R': flags |= JOC_TYPE_BYREF; goto next;
+ case 'V': flags |= JOC_TYPE_ONEWAY; goto next;
next:
- next = *(*name)++;
+ next = *(*encoding)++;
goto parse;
break;
default:
- printf("invalid type character: '%c' {%s}\n", next, *name - 10);
- _assert(false);
+ CYThrow("invalid type character: '%c' {%s}", next, *encoding - 10);
}
+ type->flags = flags;
+
return type;
}
-void Parse(apr_pool_t *pool, struct Signature *signature, const char *name) {
+void Parse(CYPool &pool, struct Signature *signature, const char *name, Callback callback) {
const char *temp = name;
- Parse_(pool, signature, &temp, '\0');
+ Parse_(pool, signature, &temp, '\0', callback);
_assert(temp[-1] == '\0');
}
-const char *Unparse(apr_pool_t *pool, struct Signature *signature) {
+const char *Unparse(CYPool &pool, const struct Signature *signature) {
const char *value = "";
size_t offset;
for (offset = 0; offset != signature->count; ++offset) {
const char *type = Unparse(pool, signature->elements[offset].type);
- value = apr_pstrcat(pool, value, type, NULL);
+ value = pool.strcat(value, type, NULL);
}
return value;
}
-const char *Unparse(apr_pool_t *pool, struct Type *type) {
- if (type == NULL)
- return "?";
- else switch (type->primitive) {
- case typename_P: return "#";
- case union_P: return apr_psprintf(pool, "(%s)", Unparse(pool, &type->data.signature));
- case string_P: return "*";
- case selector_P: return ":";
- case object_P: return type->name == NULL ? "@" : apr_psprintf(pool, "@\"%s\"", type->name);
- case boolean_P: return "B";
- case uchar_P: return "C";
- case uint_P: return "I";
- case ulong_P: return "L";
- case ulonglong_P: return "Q";
- case ushort_P: return "S";
-
- case array_P: {
- const char *value = Unparse(pool, type->data.data.type);
- return apr_psprintf(pool, "[%lu%s]", type->data.data.size, value);
- } break;
+template <>
+const char *Primitive<bool>::Encode(CYPool &pool) const {
+ return "B";
+}
- case pointer_P: return apr_psprintf(pool, "^%s", type->data.data.type == NULL ? "" : Unparse(pool, type->data.data.type));
- case bit_P: return apr_psprintf(pool, "b%zu", type->data.data.size);
- case char_P: return "c";
- case double_P: return "d";
- case float_P: return "f";
- case int_P: return "i";
- case long_P: return "l";
- case longlong_P: return "q";
- case short_P: return "s";
- case void_P: return "v";
- case struct_P: return apr_psprintf(pool, "{%s=%s}", type->name == NULL ? "?" : type->name, Unparse(pool, &type->data.signature));
- }
+template <>
+const char *Primitive<char>::Encode(CYPool &pool) const {
+ return "c";
+}
+
+template <>
+const char *Primitive<double>::Encode(CYPool &pool) const {
+ return "d";
+}
+
+template <>
+const char *Primitive<float>::Encode(CYPool &pool) const {
+ return "f";
+}
+
+template <>
+const char *Primitive<signed char>::Encode(CYPool &pool) const {
+ return "c";
+}
+
+template <>
+const char *Primitive<signed int>::Encode(CYPool &pool) const {
+ return "i";
+}
+
+#ifdef __SIZEOF_INT128__
+template <>
+const char *Primitive<signed __int128>::Encode(CYPool &pool) const {
+ return "t";
+}
+#endif
+
+template <>
+const char *Primitive<signed long int>::Encode(CYPool &pool) const {
+ return "l";
+}
+
+template <>
+const char *Primitive<signed long long int>::Encode(CYPool &pool) const {
+ return "q";
+}
+
+template <>
+const char *Primitive<signed short int>::Encode(CYPool &pool) const {
+ return "s";
+}
+
+template <>
+const char *Primitive<unsigned char>::Encode(CYPool &pool) const {
+ return "C";
+}
+
+template <>
+const char *Primitive<unsigned int>::Encode(CYPool &pool) const {
+ return "I";
+}
+
+#ifdef __SIZEOF_INT128__
+template <>
+const char *Primitive<unsigned __int128>::Encode(CYPool &pool) const {
+ return "T";
+}
+#endif
+
+template <>
+const char *Primitive<unsigned long int>::Encode(CYPool &pool) const {
+ return "L";
+}
+
+template <>
+const char *Primitive<unsigned long long int>::Encode(CYPool &pool) const {
+ return "Q";
+}
+
+template <>
+const char *Primitive<unsigned short int>::Encode(CYPool &pool) const {
+ return "S";
+}
+
+const char *Void::Encode(CYPool &pool) const {
+ return "v";
+}
+
+const char *Unknown::Encode(CYPool &pool) const {
+ return "?";
+}
+
+const char *String::Encode(CYPool &pool) const {
+ return "*";
+}
+
+#ifdef CY_OBJECTIVEC
+const char *Meta::Encode(CYPool &pool) const {
+ return "#";
+}
+
+const char *Selector::Encode(CYPool &pool) const {
+ return ":";
+}
+#endif
+
+const char *Bits::Encode(CYPool &pool) const {
+ return pool.strcat("b", pool.itoa(size), NULL);
+}
+
+const char *Pointer::Encode(CYPool &pool) const {
+ return pool.strcat("^", type.Encode(pool), NULL);
+}
+
+const char *Array::Encode(CYPool &pool) const {
+ return pool.strcat("[", pool.itoa(size), type.Encode(pool), "]", NULL);
+}
+
+#ifdef CY_OBJECTIVEC
+const char *Object::Encode(CYPool &pool) const {
+ return name == NULL ? "@" : pool.strcat("@\"", name, "\"", NULL);
+}
+#endif
+
+const char *Enum::Encode(CYPool &pool) const {
+ return type.Encode(pool);
+}
+
+const char *Aggregate::Encode(CYPool &pool) const {
+ bool reference(signature.count == _not(size_t));
+ return pool.strcat(overlap ? "(" : "{",
+ name == NULL ? "?" : name,
+ reference ? "" : "=",
+ reference ? "" : Unparse(pool, &signature),
+ overlap ? ")" : "}", NULL);
+}
+
+const char *Function::Encode(CYPool &pool) const {
+ return "?";
+}
+
+#ifdef CY_OBJECTIVEC
+const char *Block::Encode(CYPool &pool) const {
+ return "@?";
+}
+#endif
- _assert(false);
- return NULL;
+const char *Unparse(CYPool &pool, const struct Type *type) {
+ const char *base(type->Encode(pool));
+ if (type->flags == 0)
+ return base;
+
+ #define iovec_(base, size) \
+ (struct iovec) {const_cast<char *>(base), size}
+
+ size_t size(strlen(base));
+ char buffer[7 + size];
+ size_t offset(0);
+
+ if ((type->flags & JOC_TYPE_INOUT) != 0)
+ buffer[offset++] = 'N';
+ if ((type->flags & JOC_TYPE_IN) != 0)
+ buffer[offset++] = 'n';
+ if ((type->flags & JOC_TYPE_BYCOPY) != 0)
+ buffer[offset++] = 'O';
+ if ((type->flags & JOC_TYPE_OUT) != 0)
+ buffer[offset++] = 'o';
+ if ((type->flags & JOC_TYPE_BYREF) != 0)
+ buffer[offset++] = 'R';
+ if ((type->flags & JOC_TYPE_CONST) != 0)
+ buffer[offset++] = 'r';
+ if ((type->flags & JOC_TYPE_ONEWAY) != 0)
+ buffer[offset++] = 'V';
+
+ memcpy(buffer + offset, base, size);
+ return pool.strmemdup(buffer, offset + size);
}
}
projects / cycript.git / blobdiff