Esempi in C++ (Cpp) per get_AT_SECURE

Esempio n. 1

File: linker_environ.cpp Progetto: epowers/arc

static void __sanitize_environment_variables() {
  char** src  = _envp;
  char** dst = _envp;
  for (; src[0] != NULL; ++src) {
    if (!__is_valid_environment_variable(src[0])) {
      continue;
    }
    // Remove various unsafe environment variables if we're loading a setuid program.
    if (get_AT_SECURE() && __is_unsafe_environment_variable(src[0])) {
        continue;
    }
    dst[0] = src[0];
    ++dst;
  }
  dst[0] = NULL;
}

Esempio n. 2

File: linker_environ.cpp Progetto: pinchartl/platform_bionic

unsigned* linker_env_init(unsigned* environment_and_aux_vectors) {
  // Store environment pointer - can't be NULL.
  _envp = reinterpret_cast<char**>(environment_and_aux_vectors);

  // Skip over all environment variable definitions.
  // The end of the environment block is marked by two NULL pointers.
  unsigned* aux_vectors = environment_and_aux_vectors;
  while (aux_vectors[0] != 0) {
    ++aux_vectors;
  }
  ++aux_vectors;

  __remove_invalid_environment_variables();
  __init_AT_SECURE(aux_vectors);

  // Sanitize environment if we're loading a setuid program.
  if (get_AT_SECURE()) {
    __remove_unsafe_environment_variables();
  }

  return aux_vectors;
}