Function copyAndEscape

classpath/java-lang.cpp:341–377

}

void copyAndEscape(char** dest, const char* src, size_t length)
{
  char* destp = *dest;
  const char* end = src + length;

  if (length != 0 && !needsEscape(src, length)) {
    for (const char* ptr = src; ptr < end; ptr++) {
      *(destp++) = *ptr;
    }
  } else {
    *(destp++) = '"';

    for (const char* ptr = src;; ptr++) {
      unsigned numBackslashes = 0;

      while (ptr < end && *ptr == '\\') {
        ptr++;
        numBackslashes++;
      }

      if (ptr == end) {
        appendN(&destp, '\\', 2 * numBackslashes);
        break;
      } else if (*ptr == '"') {
        appendN(&destp, '\\', 2 * numBackslashes + 1);
        *(destp++) = *ptr;
      } else {
        appendN(&destp, '\\', numBackslashes);
        *(destp++) = *ptr;
      }
    }

    *(destp++) = '"';
  }

  *dest = destp;
}

extern "C" JNIEXPORT void JNICALL
    Java_java_lang_Runtime_exec(JNIEnv* e,