+/* 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) { _pooled
- 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)) {
- CFStringRef json;
+void Run(int socket, std::string &code, FILE *fout) {
+ CYPool pool;
- @try { json:
- json = CYCopyJSONString(context, result);
- } @catch (id error) {
- CYThrow(context, error, &result);
- goto json;
- }
-
- if (fout != NULL) {
- fputs([reinterpret_cast<const NSString *>(json) UTF8String], fout);
- fputs("\n", fout);
- fflush(fout);
+ const char *json;
+ if (socket == -1)
+ json = CYExecute(pool, code.c_str());
+ else {
+ const char *data(code.c_str());
+ size_t size(code.size());
+ 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;
}
+ }
- CFRelease(json);
+ if (json != NULL && fout != NULL) {
+ fputs(json, fout);
+ fputs("\n", fout);
+ fflush(fout);
}
}
-void Console() {
+static void Console(int socket) {
bool bypass(false);
bool debug(false);
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);
}
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>]\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)
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 && pid != _not(pid_t)) {
+ fprintf(stderr, "-p or <script>: choose one\n");
+ return 1;
+ }
+
+ 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 || strcmp(script, "-") == 0)
- Console();
+ 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;
driver.source_->Show(str);
std::string code(str.str());
std::cout << code << std::endl;
- Run(code.c_str(), stdout);
+ Run(socket, code, stdout);
}
}
projects / cycript.git / blobdiff