X-Git-Url: https://git.josue.xyz/?p=VSoRC%2F.git;a=blobdiff_plain;f=node_modules%2Fnode-pty%2Fsrc%2Funix%2Fpty.cc;fp=node_modules%2Fnode-pty%2Fsrc%2Funix%2Fpty.cc;h=d2f4c1131d7e91c714682e336848d764cc947620;hp=0000000000000000000000000000000000000000;hb=e79e4a5a87f3e84f7c1777f10a954453a69bf540;hpb=4339da12467b75fb8b6ca831f4bf0081c485ed2c

diff --git a/node_modules/node-pty/src/unix/pty.cc b/node_modules/node-pty/src/unix/pty.cc
new file mode 100644
index 0000000..d2f4c11
--- /dev/null
+++ b/node_modules/node-pty/src/unix/pty.cc
@@ -0,0 +1,708 @@
+/**
+ * Copyright (c) 2012-2015, Christopher Jeffrey (MIT License)
+ * Copyright (c) 2017, Daniel Imms (MIT License)
+ *
+ * pty.cc:
+ *   This file is responsible for starting processes
+ *   with pseudo-terminal file descriptors.
+ *
+ * See:
+ *   man pty
+ *   man tty_ioctl
+ *   man termios
+ *   man forkpty
+ */
+
+/**
+ * Includes
+ */
+
+#include <nan.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+
+/* forkpty */
+/* http://www.gnu.org/software/gnulib/manual/html_node/forkpty.html */
+#if defined(__GLIBC__) || defined(__CYGWIN__)
+#include <pty.h>
+#elif defined(__APPLE__) || defined(__OpenBSD__) || defined(__NetBSD__)
+#include <util.h>
+#elif defined(__FreeBSD__)
+#include <libutil.h>
+#elif defined(__sun)
+#include <stropts.h> /* for I_PUSH */
+#else
+#include <pty.h>
+#endif
+
+#include <termios.h> /* tcgetattr, tty_ioctl */
+
+/* Some platforms name VWERASE and VDISCARD differently */
+#if !defined(VWERASE) && defined(VWERSE)
+#define VWERASE	VWERSE
+#endif
+#if !defined(VDISCARD) && defined(VDISCRD)
+#define VDISCARD	VDISCRD
+#endif
+
+/* environ for execvpe */
+/* node/src/node_child_process.cc */
+#if defined(__APPLE__) && !TARGET_OS_IPHONE
+#include <crt_externs.h>
+#define environ (*_NSGetEnviron())
+#else
+extern char **environ;
+#endif
+
+/* for pty_getproc */
+#if defined(__linux__)
+#include <stdio.h>
+#include <stdint.h>
+#elif defined(__APPLE__)
+#include <sys/sysctl.h>
+#include <libproc.h>
+#endif
+
+/**
+ * Structs
+ */
+
+struct pty_baton {
+  Nan::Persistent<v8::Function> cb;
+  int exit_code;
+  int signal_code;
+  pid_t pid;
+  uv_async_t async;
+  uv_thread_t tid;
+};
+
+/**
+ * Methods
+ */
+
+NAN_METHOD(PtyFork);
+NAN_METHOD(PtyOpen);
+NAN_METHOD(PtyResize);
+NAN_METHOD(PtyGetProc);
+
+/**
+ * Functions
+ */
+
+static int
+pty_execvpe(const char *, char **, char **);
+
+static int
+pty_nonblock(int);
+
+static char *
+pty_getproc(int, char *);
+
+static int
+pty_openpty(int *, int *, char *,
+            const struct termios *,
+            const struct winsize *);
+
+static pid_t
+pty_forkpty(int *, char *,
+            const struct termios *,
+            const struct winsize *);
+
+static void
+pty_waitpid(void *);
+
+static void
+pty_after_waitpid(uv_async_t *);
+
+static void
+pty_after_close(uv_handle_t *);
+
+NAN_METHOD(PtyFork) {
+  Nan::HandleScope scope;
+
+  if (info.Length() != 10 ||
+      !info[0]->IsString() ||
+      !info[1]->IsArray() ||
+      !info[2]->IsArray() ||
+      !info[3]->IsString() ||
+      !info[4]->IsNumber() ||
+      !info[5]->IsNumber() ||
+      !info[6]->IsNumber() ||
+      !info[7]->IsNumber() ||
+      !info[8]->IsBoolean() ||
+      !info[9]->IsFunction()) {
+    return Nan::ThrowError(
+        "Usage: pty.fork(file, args, env, cwd, cols, rows, uid, gid, utf8, onexit)");
+  }
+
+  // Make sure the process still listens to SIGINT
+  signal(SIGINT, SIG_DFL);
+
+  // file
+  Nan::Utf8String file(info[0]);
+
+  // args
+  int i = 0;
+  v8::Local<v8::Array> argv_ = v8::Local<v8::Array>::Cast(info[1]);
+  int argc = argv_->Length();
+  int argl = argc + 1 + 1;
+  char **argv = new char*[argl];
+  argv[0] = strdup(*file);
+  argv[argl-1] = NULL;
+  for (; i < argc; i++) {
+    Nan::Utf8String arg(Nan::Get(argv_, i).ToLocalChecked());
+    argv[i+1] = strdup(*arg);
+  }
+
+  // env
+  i = 0;
+  v8::Local<v8::Array> env_ = v8::Local<v8::Array>::Cast(info[2]);
+  int envc = env_->Length();
+  char **env = new char*[envc+1];
+  env[envc] = NULL;
+  for (; i < envc; i++) {
+    Nan::Utf8String pair(Nan::Get(env_, i).ToLocalChecked());
+    env[i] = strdup(*pair);
+  }
+
+  // cwd
+  Nan::Utf8String cwd_(info[3]);
+  char *cwd = strdup(*cwd_);
+
+  // size
+  struct winsize winp;
+  winp.ws_col = info[4]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  winp.ws_row = info[5]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  winp.ws_xpixel = 0;
+  winp.ws_ypixel = 0;
+
+  // termios
+  struct termios t = termios();
+  struct termios *term = &t;
+  term->c_iflag = ICRNL | IXON | IXANY | IMAXBEL | BRKINT;
+  if (Nan::To<bool>(info[8]).FromJust()) {
+#if defined(IUTF8)
+    term->c_iflag |= IUTF8;
+#endif
+  }
+  term->c_oflag = OPOST | ONLCR;
+  term->c_cflag = CREAD | CS8 | HUPCL;
+  term->c_lflag = ICANON | ISIG | IEXTEN | ECHO | ECHOE | ECHOK | ECHOKE | ECHOCTL;
+
+  term->c_cc[VEOF] = 4;
+  term->c_cc[VEOL] = -1;
+  term->c_cc[VEOL2] = -1;
+  term->c_cc[VERASE] = 0x7f;
+  term->c_cc[VWERASE] = 23;
+  term->c_cc[VKILL] = 21;
+  term->c_cc[VREPRINT] = 18;
+  term->c_cc[VINTR] = 3;
+  term->c_cc[VQUIT] = 0x1c;
+  term->c_cc[VSUSP] = 26;
+  term->c_cc[VSTART] = 17;
+  term->c_cc[VSTOP] = 19;
+  term->c_cc[VLNEXT] = 22;
+  term->c_cc[VDISCARD] = 15;
+  term->c_cc[VMIN] = 1;
+  term->c_cc[VTIME] = 0;
+
+  #if (__APPLE__)
+  term->c_cc[VDSUSP] = 25;
+  term->c_cc[VSTATUS] = 20;
+  #endif
+
+  cfsetispeed(term, B38400);
+  cfsetospeed(term, B38400);
+
+  // uid / gid
+  int uid = info[6]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  int gid = info[7]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+
+  // fork the pty
+  int master = -1;
+  pid_t pid = pty_forkpty(&master, nullptr, term, &winp);
+
+  if (pid) {
+    for (i = 0; i < argl; i++) free(argv[i]);
+    delete[] argv;
+    for (i = 0; i < envc; i++) free(env[i]);
+    delete[] env;
+    free(cwd);
+  }
+
+  switch (pid) {
+    case -1:
+      return Nan::ThrowError("forkpty(3) failed.");
+    case 0:
+      if (strlen(cwd)) {
+        if (chdir(cwd) == -1) {
+          perror("chdir(2) failed.");
+          _exit(1);
+        }
+      }
+
+      if (uid != -1 && gid != -1) {
+        if (setgid(gid) == -1) {
+          perror("setgid(2) failed.");
+          _exit(1);
+        }
+        if (setuid(uid) == -1) {
+          perror("setuid(2) failed.");
+          _exit(1);
+        }
+      }
+
+      pty_execvpe(argv[0], argv, env);
+
+      perror("execvp(3) failed.");
+      _exit(1);
+    default:
+      if (pty_nonblock(master) == -1) {
+        return Nan::ThrowError("Could not set master fd to nonblocking.");
+      }
+
+      v8::Local<v8::Object> obj = Nan::New<v8::Object>();
+      Nan::Set(obj,
+        Nan::New<v8::String>("fd").ToLocalChecked(),
+        Nan::New<v8::Number>(master));
+      Nan::Set(obj,
+        Nan::New<v8::String>("pid").ToLocalChecked(),
+        Nan::New<v8::Number>(pid));
+      Nan::Set(obj,
+        Nan::New<v8::String>("pty").ToLocalChecked(),
+        Nan::New<v8::String>(ptsname(master)).ToLocalChecked());
+
+      pty_baton *baton = new pty_baton();
+      baton->exit_code = 0;
+      baton->signal_code = 0;
+      baton->cb.Reset(v8::Local<v8::Function>::Cast(info[9]));
+      baton->pid = pid;
+      baton->async.data = baton;
+
+      uv_async_init(uv_default_loop(), &baton->async, pty_after_waitpid);
+
+      uv_thread_create(&baton->tid, pty_waitpid, static_cast<void*>(baton));
+
+      return info.GetReturnValue().Set(obj);
+  }
+
+  return info.GetReturnValue().SetUndefined();
+}
+
+NAN_METHOD(PtyOpen) {
+  Nan::HandleScope scope;
+
+  if (info.Length() != 2 ||
+      !info[0]->IsNumber() ||
+      !info[1]->IsNumber()) {
+    return Nan::ThrowError("Usage: pty.open(cols, rows)");
+  }
+
+  // size
+  struct winsize winp;
+  winp.ws_col = info[0]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  winp.ws_row = info[1]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  winp.ws_xpixel = 0;
+  winp.ws_ypixel = 0;
+
+  // pty
+  int master, slave;
+  int ret = pty_openpty(&master, &slave, nullptr, NULL, &winp);
+
+  if (ret == -1) {
+    return Nan::ThrowError("openpty(3) failed.");
+  }
+
+  if (pty_nonblock(master) == -1) {
+    return Nan::ThrowError("Could not set master fd to nonblocking.");
+  }
+
+  if (pty_nonblock(slave) == -1) {
+    return Nan::ThrowError("Could not set slave fd to nonblocking.");
+  }
+
+  v8::Local<v8::Object> obj = Nan::New<v8::Object>();
+  Nan::Set(obj,
+    Nan::New<v8::String>("master").ToLocalChecked(),
+    Nan::New<v8::Number>(master));
+  Nan::Set(obj,
+    Nan::New<v8::String>("slave").ToLocalChecked(),
+    Nan::New<v8::Number>(slave));
+  Nan::Set(obj,
+    Nan::New<v8::String>("pty").ToLocalChecked(),
+    Nan::New<v8::String>(ptsname(master)).ToLocalChecked());
+
+  return info.GetReturnValue().Set(obj);
+}
+
+NAN_METHOD(PtyResize) {
+  Nan::HandleScope scope;
+
+  if (info.Length() != 3 ||
+      !info[0]->IsNumber() ||
+      !info[1]->IsNumber() ||
+      !info[2]->IsNumber()) {
+    return Nan::ThrowError("Usage: pty.resize(fd, cols, rows)");
+  }
+
+  int fd = info[0]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+
+  struct winsize winp;
+  winp.ws_col = info[1]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  winp.ws_row = info[2]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+  winp.ws_xpixel = 0;
+  winp.ws_ypixel = 0;
+
+  if (ioctl(fd, TIOCSWINSZ, &winp) == -1) {
+    switch (errno) {
+      case EBADF: return Nan::ThrowError("ioctl(2) failed, EBADF");
+      case EFAULT: return Nan::ThrowError("ioctl(2) failed, EFAULT");
+      case EINVAL: return Nan::ThrowError("ioctl(2) failed, EINVAL");
+      case ENOTTY: return Nan::ThrowError("ioctl(2) failed, ENOTTY");
+    }
+    return Nan::ThrowError("ioctl(2) failed");
+  }
+
+  return info.GetReturnValue().SetUndefined();
+}
+
+/**
+ * Foreground Process Name
+ */
+NAN_METHOD(PtyGetProc) {
+  Nan::HandleScope scope;
+
+  if (info.Length() != 2 ||
+      !info[0]->IsNumber() ||
+      !info[1]->IsString()) {
+    return Nan::ThrowError("Usage: pty.process(fd, tty)");
+  }
+
+  int fd = info[0]->IntegerValue(Nan::GetCurrentContext()).FromJust();
+
+  Nan::Utf8String tty_(info[1]);
+  char *tty = strdup(*tty_);
+  char *name = pty_getproc(fd, tty);
+  free(tty);
+
+  if (name == NULL) {
+    return info.GetReturnValue().SetUndefined();
+  }
+
+  v8::Local<v8::String> name_ = Nan::New<v8::String>(name).ToLocalChecked();
+  free(name);
+  return info.GetReturnValue().Set(name_);
+}
+
+/**
+ * execvpe
+ */
+
+// execvpe(3) is not portable.
+// http://www.gnu.org/software/gnulib/manual/html_node/execvpe.html
+static int
+pty_execvpe(const char *file, char **argv, char **envp) {
+  char **old = environ;
+  environ = envp;
+  int ret = execvp(file, argv);
+  environ = old;
+  return ret;
+}
+
+/**
+ * Nonblocking FD
+ */
+
+static int
+pty_nonblock(int fd) {
+  int flags = fcntl(fd, F_GETFL, 0);
+  if (flags == -1) return -1;
+  return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+}
+
+/**
+ * pty_waitpid
+ * Wait for SIGCHLD to read exit status.
+ */
+
+static void
+pty_waitpid(void *data) {
+  int ret;
+  int stat_loc;
+
+  pty_baton *baton = static_cast<pty_baton*>(data);
+
+  errno = 0;
+
+  if ((ret = waitpid(baton->pid, &stat_loc, 0)) != baton->pid) {
+    if (ret == -1 && errno == EINTR) {
+      return pty_waitpid(baton);
+    }
+    if (ret == -1 && errno == ECHILD) {
+      // XXX node v0.8.x seems to have this problem.
+      // waitpid is already handled elsewhere.
+      ;
+    } else {
+      assert(false);
+    }
+  }
+
+  if (WIFEXITED(stat_loc)) {
+    baton->exit_code = WEXITSTATUS(stat_loc); // errno?
+  }
+
+  if (WIFSIGNALED(stat_loc)) {
+    baton->signal_code = WTERMSIG(stat_loc);
+  }
+
+  uv_async_send(&baton->async);
+}
+
+/**
+ * pty_after_waitpid
+ * Callback after exit status has been read.
+ */
+
+static void
+pty_after_waitpid(uv_async_t *async) {
+  Nan::HandleScope scope;
+  pty_baton *baton = static_cast<pty_baton*>(async->data);
+
+  v8::Local<v8::Value> argv[] = {
+    Nan::New<v8::Integer>(baton->exit_code),
+    Nan::New<v8::Integer>(baton->signal_code),
+  };
+
+  v8::Local<v8::Function> cb = Nan::New<v8::Function>(baton->cb);
+  baton->cb.Reset();
+  memset(&baton->cb, -1, sizeof(baton->cb));
+  Nan::AsyncResource resource("pty_after_waitpid");
+  resource.runInAsyncScope(Nan::GetCurrentContext()->Global(), cb, 2, argv);
+
+  uv_close((uv_handle_t *)async, pty_after_close);
+}
+
+/**
+ * pty_after_close
+ * uv_close() callback - free handle data
+ */
+
+static void
+pty_after_close(uv_handle_t *handle) {
+  uv_async_t *async = (uv_async_t *)handle;
+  pty_baton *baton = static_cast<pty_baton*>(async->data);
+  delete baton;
+}
+
+/**
+ * pty_getproc
+ * Taken from tmux.
+ */
+
+// Taken from: tmux (http://tmux.sourceforge.net/)
+// Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
+// Copyright (c) 2009 Joshua Elsasser <josh@elsasser.org>
+// Copyright (c) 2009 Todd Carson <toc@daybefore.net>
+//
+// Permission to use, copy, modify, and distribute this software for any
+// purpose with or without fee is hereby granted, provided that the above
+// copyright notice and this permission notice appear in all copies.
+//
+// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+// WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+// IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+// OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+#if defined(__linux__)
+
+static char *
+pty_getproc(int fd, char *tty) {
+  FILE *f;
+  char *path, *buf;
+  size_t len;
+  int ch;
+  pid_t pgrp;
+  int r;
+
+  if ((pgrp = tcgetpgrp(fd)) == -1) {
+    return NULL;
+  }
+
+  r = asprintf(&path, "/proc/%lld/cmdline", (long long)pgrp);
+  if (r == -1 || path == NULL) return NULL;
+
+  if ((f = fopen(path, "r")) == NULL) {
+    free(path);
+    return NULL;
+  }
+
+  free(path);
+
+  len = 0;
+  buf = NULL;
+  while ((ch = fgetc(f)) != EOF) {
+    if (ch == '\0') break;
+    buf = (char *)realloc(buf, len + 2);
+    if (buf == NULL) return NULL;
+    buf[len++] = ch;
+  }
+
+  if (buf != NULL) {
+    buf[len] = '\0';
+  }
+
+  fclose(f);
+  return buf;
+}
+
+#elif defined(__APPLE__)
+
+static char *
+pty_getproc(int fd, char *tty) {
+  int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, 0 };
+  size_t size;
+  struct kinfo_proc kp;
+
+  if ((mib[3] = tcgetpgrp(fd)) == -1) {
+    return NULL;
+  }
+
+  size = sizeof kp;
+  if (sysctl(mib, 4, &kp, &size, NULL, 0) == -1) {
+    return NULL;
+  }
+
+  if (*kp.kp_proc.p_comm == '\0') {
+    return NULL;
+  }
+
+  return strdup(kp.kp_proc.p_comm);
+}
+
+#else
+
+static char *
+pty_getproc(int fd, char *tty) {
+  return NULL;
+}
+
+#endif
+
+/**
+ * openpty(3) / forkpty(3)
+ */
+
+static int
+pty_openpty(int *amaster,
+            int *aslave,
+            char *name,
+            const struct termios *termp,
+            const struct winsize *winp) {
+#if defined(__sun)
+  char *slave_name;
+  int slave;
+  int master = open("/dev/ptmx", O_RDWR | O_NOCTTY);
+  if (master == -1) return -1;
+  if (amaster) *amaster = master;
+
+  if (grantpt(master) == -1) goto err;
+  if (unlockpt(master) == -1) goto err;
+
+  slave_name = ptsname(master);
+  if (slave_name == NULL) goto err;
+  if (name) strcpy(name, slave_name);
+
+  slave = open(slave_name, O_RDWR | O_NOCTTY);
+  if (slave == -1) goto err;
+  if (aslave) *aslave = slave;
+
+  ioctl(slave, I_PUSH, "ptem");
+  ioctl(slave, I_PUSH, "ldterm");
+  ioctl(slave, I_PUSH, "ttcompat");
+
+  if (termp) tcsetattr(slave, TCSAFLUSH, termp);
+  if (winp) ioctl(slave, TIOCSWINSZ, winp);
+
+  return 0;
+
+err:
+  close(master);
+  return -1;
+#else
+  return openpty(amaster, aslave, name, (termios *)termp, (winsize *)winp);
+#endif
+}
+
+static pid_t
+pty_forkpty(int *amaster,
+            char *name,
+            const struct termios *termp,
+            const struct winsize *winp) {
+#if defined(__sun)
+  int master, slave;
+
+  int ret = pty_openpty(&master, &slave, name, termp, winp);
+  if (ret == -1) return -1;
+  if (amaster) *amaster = master;
+
+  pid_t pid = fork();
+
+  switch (pid) {
+    case -1:
+      close(master);
+      close(slave);
+      return -1;
+    case 0:
+      close(master);
+
+      setsid();
+
+#if defined(TIOCSCTTY)
+      // glibc does this
+      if (ioctl(slave, TIOCSCTTY, NULL) == -1) {
+        _exit(1);
+      }
+#endif
+
+      dup2(slave, 0);
+      dup2(slave, 1);
+      dup2(slave, 2);
+
+      if (slave > 2) close(slave);
+
+      return 0;
+    default:
+      close(slave);
+      return pid;
+  }
+
+  return -1;
+#else
+  return forkpty(amaster, name, (termios *)termp, (winsize *)winp);
+#endif
+}
+
+/**
+ * Init
+ */
+
+NAN_MODULE_INIT(init) {
+  Nan::HandleScope scope;
+  Nan::Export(target, "fork", PtyFork);
+  Nan::Export(target, "open", PtyOpen);
+  Nan::Export(target, "resize", PtyResize);
+  Nan::Export(target, "process", PtyGetProc);
+}
+
+NODE_MODULE(pty, init)