+/* Cycript - Remove Execution Server and Disassembler
+ * Copyright (C) 2009 Jay Freeman (saurik)
+*/
+
+/* Modified BSD License {{{ */
+/*
+ * 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.
+*/
+/* }}} */
+
#define _GNU_SOURCE
#include <substrate.h>
#include "Cycript.tab.hh"
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/un.h>
+
static jmp_buf ctrlc_;
-void sigint(int) {
+static void sigint(int) {
longjmp(ctrlc_, 1);
}
-void Run(const char *code, FILE *fout) {
- JSStringRef script(JSStringCreateWithUTF8CString(code));
-
- JSContextRef context(CYGetJSContext());
-
- JSValueRef exception(NULL);
- JSValueRef result(JSEvaluateScript(context, script, NULL, NULL, 0, &exception));
- JSStringRelease(script);
-
- if (exception != NULL)
- result = exception;
-
- if (!JSValueIsUndefined(context, result)) {
- CYPool pool;
- const char *json;
-
- json = CYPoolJSONString(pool, context, result);
+void Run(int socket, const char *data, size_t size, FILE *fout, bool expand = false) {
+ CYPool pool;
+
+ const char *json;
+ if (socket == -1) {
+ json = CYExecute(pool, data);
+ if (json != NULL)
+ size = strlen(json);
+ } else {
+ CYSendAll(socket, &size, sizeof(size));
+ CYSendAll(socket, data, size);
+ CYRecvAll(socket, &size, sizeof(size));
+ if (size == _not(size_t))
+ json = NULL;
+ else {
+ char *temp(new(pool) char[size + 1]);
+ CYRecvAll(socket, temp, size);
+ temp[size] = '\0';
+ json = temp;
+ }
+ }
- if (fout != NULL) {
+ if (json != NULL && fout != NULL) {
+ if (!expand || json[0] != '"' && json[0] != '\'')
fputs(json, fout);
- fputs("\n", fout);
- fflush(fout);
- }
+ else for (size_t i(0); i != size; ++i)
+ if (json[i] != '\\')
+ fputc(json[i], fout);
+ else switch(json[++i]) {
+ case '\0': goto done;
+ case '\\': fputc('\\', fout); break;
+ case '\'': fputc('\'', fout); break;
+ case '"': fputc('"', fout); break;
+ case 'b': fputc('\b', fout); break;
+ case 'f': fputc('\f', fout); break;
+ case 'n': fputc('\n', fout); break;
+ case 'r': fputc('\r', fout); break;
+ case 't': fputc('\t', fout); break;
+ case 'v': fputc('\v', fout); break;
+ default: fputc('\\', fout); --i; break;
+ }
+
+ done:
+ fputs("\n", fout);
+ fflush(fout);
}
}
-void Console() {
+void Run(int socket, std::string &code, FILE *fout, bool expand = false) {
+ Run(socket, code.c_str(), code.size(), fout, expand);
+}
+
+static void Console(int socket) {
bool bypass(false);
bool debug(false);
+ bool expand(false);
FILE *fout(stdout);
if (!extra) {
extra = true;
- if (line[0] == '\\') {
+ if (line[0] == '?') {
std::string data(line + 1);
if (data == "bypass") {
bypass = !bypass;
debug = !debug;
fprintf(fout, "debug == %s\n", debug ? "true" : "false");
fflush(fout);
+ } else if (data == "expand") {
+ expand = !expand;
+ fprintf(fout, "expand == %s\n", expand ? "true" : "false");
+ fflush(fout);
}
add_history(line);
goto restart;
driver.size_ = command.size();
if (parser.parse() != 0 || !driver.errors_.empty()) {
- for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i) {
- cy::position begin(i->location_.begin);
+ for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) {
+ cy::position begin(error->location_.begin);
if (begin.line != lines.size() || begin.column - 1 != lines.back().size()) {
- std::cerr << i->message_ << std::endl;
+ cy::position end(error->location_.end);
+ if (begin.line != lines.size()) {
+ std::cerr << " | ";
+ std::cerr << lines[begin.line - 1] << std::endl;
+ }
+ std::cerr << " | ";
+ for (size_t i(0); i != begin.column - 1; ++i)
+ std::cerr << '.';
+ if (begin.line != end.line)
+ std::cerr << '^';
+ else for (size_t i(0), e(end.column - begin.column); i != e; ++i)
+ std::cerr << '^';
+ std::cerr << std::endl;
+ std::cerr << " | ";
+ std::cerr << error->message_ << std::endl;
add_history(command.c_str());
goto restart;
}
if (driver.source_ == NULL)
goto restart;
- std::ostringstream str;
- driver.source_->Show(str);
- code = str.str();
+ if (socket != -1)
+ code = command;
+ else {
+ std::ostringstream str;
+ driver.source_->Show(str);
+ code = str.str();
+ }
}
add_history(command.c_str());
if (debug)
std::cout << code << std::endl;
- Run(code.c_str(), fout);
+ Run(socket, code, fout, expand);
}
fputs("\n", fout);
fflush(fout);
}
-void *Map(const char *path, size_t *psize) {
+static void *Map(const char *path, size_t *psize) {
int fd;
_syscall(fd = open(path, O_RDONLY));
return base;
}
-int main(int argc, const char *argv[]) {
+int main(int argc, char *argv[]) {
+ pid_t pid(_not(pid_t));
+
+ for (;;) switch (getopt(argc, argv, "p:")) {
+ case -1:
+ goto getopt;
+ case '?':
+ fprintf(stderr, "usage: cycript [-p <pid>] [<script> [<arg>...]]\n");
+ return 1;
+
+ case 'p': {
+ size_t size(strlen(optarg));
+ char *end;
+ pid = strtoul(optarg, &end, 0);
+ if (optarg + size != end) {
+ fprintf(stderr, "invalid pid for -p\n");
+ return 1;
+ }
+ } break;
+ } getopt:;
+
const char *script;
- if (argc == 1)
+ if (optind < argc - 1 && pid != _not(pid_t)) {
+ fprintf(stderr, "-p cannot set argv\n");
+ return 1;
+ }
+
+ if (optind == argc)
script = NULL;
else {
- CYSetArgs(argc - 1, argv + 1);
- script = argv[1];
+ // XXX: const_cast?! wtf gcc :(
+ CYSetArgs(argc - optind - 1, const_cast<const char **>(argv + optind + 1));
+ script = argv[optind];
+ if (strcmp(script, "-") == 0)
+ script = NULL;
}
- if (script == NULL || strcmp(script, "-") == 0)
- Console();
+ int socket;
+
+ if (pid == _not(pid_t))
+ socket = -1;
+ else {
+ socket = _syscall(::socket(PF_UNIX, SOCK_STREAM, 0));
+
+ struct sockaddr_un address;
+ memset(&address, 0, sizeof(address));
+ address.sun_family = AF_UNIX;
+ sprintf(address.sun_path, "/tmp/.s.cy.%u", pid);
+
+ _syscall(connect(socket, reinterpret_cast<sockaddr *>(&address), SUN_LEN(&address)));
+ }
+
+ if (script == NULL)
+ Console(socket);
else {
CYDriver driver(script);
cy::parser parser(driver);
if (size >= 2 && start[0] == '#' && start[1] == '!') {
start += 2;
- while (start != end && *start++ != '\n');
+
+ if (void *line = memchr(start, '\n', end - start))
+ start = reinterpret_cast<char *>(line);
+ else
+ start = end;
}
driver.data_ = start;
if (parser.parse() != 0 || !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;
- } else if (driver.source_ != NULL) {
- std::ostringstream str;
- driver.source_->Show(str);
- std::string code(str.str());
- std::cout << code << std::endl;
- Run(code.c_str(), stdout);
- }
+ } else if (driver.source_ != NULL)
+ if (socket != -1)
+ Run(socket, start, end - start, stdout);
+ else {
+ std::ostringstream str;
+ driver.source_->Show(str);
+ std::string code(str.str());
+ Run(socket, code, stdout);
+ }
}
return 0;
projects / cycript.git / blobdiff