Function prepareForExec

src/plugin/ipc/ssh/ssh.cpp:346–536

}

static void
prepareForExec(DmtcpEventData_t *data)
{
  const char **argv = data->preExec.argv;
  size_t maxArgs = data->preExec.maxArgs;

  isSshProcess = (jalib::Filesystem::BaseName(data->preExec.filename) == "ssh");
  isRshProcess = (jalib::Filesystem::BaseName(data->preExec.filename) == "rsh");

  if (!isSshProcess && !isRshProcess) {
    return;
  }

  updateCoordHost();

  size_t nargs = 0;
  bool noStrictChecking = false;
  string precmd, postcmd, tempcmd;

  while (argv[nargs++] != NULL) {}

  if (nargs < 3) {
    if (!isRshProcess) {
    JNOTE("ssh with less than 3 args") (argv[0]) (argv[1]);
    return;
    } else if (nargs < 2) {
        JNOTE("rsh with less than 2 args") (argv[0]);
        return;
      }
  }

  // find command part
  size_t commandStart = 2;
  for (size_t i = 1; i < nargs; ++i) {
    string s = argv[i];
    if (strcmp(argv[i], "-o") == 0) {
      if (strcmp(argv[i + 1], "StrictHostKeyChecking=no") == 0) {
        noStrictChecking = true;
      }
      i++;
      continue;
    }

    // The following flags have additional parameters and aren't fully
    // supported. We simply forward them to the ssh command.
    if (s == "-b" || s == "-c" || s == "-E" || s == "-e" || s == "-F" ||
        s == "-I" || s == "-i" || s == "-l" || s == "-O" || s == "-o" ||
        s == "-p" || s == "-Q" || s == "-S") {
      i++;
      continue;
    }

    // These options have a higher probability of failure due to binding
    // addresses, etc.
    if (s == "-b" || s == "-D" || s == "-L" || s == "-m" || s == "-R" ||
        s == "-W" || s == "-w") {
      JNOTE("The '" + s + "' ssh option isn't fully supported!");
      i++;