Add SSL to redbean

Your redbean can now interoperate with clients that require TLS crypto.
This is accomplished using a protocol polyglot that lets us distinguish
between HTTP and HTTPS regardless of the port number. Certificates will
be generated automatically, if none are supplied by the user. Footprint
increases by only a few hundred kb so redbean in MODY=tiny is now 1.0mb

- Add lseek() polyfills for ZIP executable
- Automatically polyfill /tmp/FOO paths on NT
- Fix readdir() / ftw() / nftw() bugs on Windows
- Introduce -B flag for slower SSL that's stronger
- Remove mbedtls features Cosmopolitan doesn't need
- Have base64 decoder support the uri-safe alternative
- Remove Truncated HMAC because it's forbidden by the IETF
- Add all the mbedtls test suites and make them go 3x faster
- Support opendir() / readdir() / closedir() on ZIP executable
- Use Everest for ECDHE-ECDSA because it's so good it's so good
- Add tinier implementation of sha1 since it's not worth the rom
- Add chi-square monte-carlo mean correlation tests for getrandom()
- Source entropy on Windows from the proper interface everyone uses

We're continuing to outperform NGINX and other servers on raw message
throughput. Using SSL means that instead of 1,000,000 qps you can get
around 300,000 qps. However redbean isn't as fast as NGINX yet at SSL
handshakes, since redbean can do 2,627 per second and NGINX does 4.3k

Right now, the SSL UX story works best if you give your redbean a key
signing key since that can be easily generated by openssl using a one
liner then redbean will do all the things that are impossibly hard to
do like signing ecdsa and rsa certificates that'll work in chrome. We
should integrate the let's encrypt acme protocol in the future.

Live Demo: https://redbean.justine.lol/
Root Cert: https://redbean.justine.lol/redbean1.crt

third_party/mbedtls/ecp_curves.c

@@ -1,10 +1,15 @@
-/* clang-format off */
+#include "third_party/mbedtls/common.h"
+#include "third_party/mbedtls/ecp.h"
+#include "third_party/mbedtls/error.h"
+#include "third_party/mbedtls/platform.h"
 
 asm(".ident\t\"\\n\\n\
 Mbed TLS (Apache 2.0)\\n\
-Copyright The Mbed TLS Contributors\"");
+Copyright ARM Limited\\n\
+Copyright Mbed TLS Contributors\"");
 asm(".include \"libc/disclaimer.inc\"");
 
+/* clang-format off */
 /*
  *  Elliptic curves over GF(p): curve-specific data and functions
  *
@@ -24,28 +29,15 @@ asm(".include \"libc/disclaimer.inc\"");
  *  limitations under the License.
  */
 
-#include "third_party/mbedtls/common.h"
-
 #if defined(MBEDTLS_ECP_C)
 
-#include "third_party/mbedtls/ecp.h"
-#include "third_party/mbedtls/platform_util.h"
-#include "third_party/mbedtls/error.h"
-
-
 #if !defined(MBEDTLS_ECP_ALT)
 
-/* Parameter validation macros based on platform_util.h */
 #define ECP_VALIDATE_RET( cond )    \
     MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
 #define ECP_VALIDATE( cond )        \
     MBEDTLS_INTERNAL_VALIDATE( cond )
 
-#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
-    !defined(inline) && !defined(__cplusplus)
-#define inline __inline
-#endif
-
 /*
  * Conversion macros for embedded constants:
  * build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2
@@ -768,8 +760,22 @@ cleanup:
 }
 #endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
 
-/*
- * Set a group using well-known domain parameters
+/**
+ * \brief           This function sets up an ECP group context
+ *                  from a standardized set of domain parameters.
+ *
+ * \note            The index should be a value of the NamedCurve enum,
+ *                  as defined in <em>RFC-4492: Elliptic Curve Cryptography
+ *                  (ECC) Cipher Suites for Transport Layer Security (TLS)</em>,
+ *                  usually in the form of an \c MBEDTLS_ECP_DP_XXX macro.
+ *
+ * \param grp       The group context to setup. This must be initialized.
+ * \param id        The identifier of the domain parameter set to load.
+ *
+ * \return          \c 0 on success.
+ * \return          #MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE if \p id doesn't
+ *                  correspond to a known group.
+ * \return          Another negative error code on other kinds of failure.
  */
 int mbedtls_ecp_group_load( mbedtls_ecp_group *grp, mbedtls_ecp_group_id id )
 {
@@ -1011,7 +1017,7 @@ static inline void sub32( uint32_t *dst, uint32_t src, signed char *carry )
  * (see fix_negative for the motivation of C)
  */
 #define INIT( b )                                                       \
-    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;                                                            \
+    int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;                    \
     signed char c = 0, cc;                                              \
     uint32_t cur;                                                       \
     size_t i = 0, bits = (b);                                           \