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							- /*
 -  * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 -  *
 -  * Licensed under the OpenSSL license (the "License").  You may not use
 -  * this file except in compliance with the License.  You can obtain a copy
 -  * in the file LICENSE in the source distribution or at
 -  * https://www.openssl.org/source/license.html
 -  */
 - 
 - /* ====================================================================
 -  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 -  * ECDH support in OpenSSL originally developed by
 -  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 -  */
 - 
 - #ifndef HEADER_CRYPTO_H
 - # define HEADER_CRYPTO_H
 - 
 - # include <stdlib.h>
 - # include <time.h>
 - 
 - # include <openssl/e_os2.h>
 - 
 - # ifndef OPENSSL_NO_STDIO
 - #  include <stdio.h>
 - # endif
 - 
 - # include <openssl/stack.h>
 - # include <openssl/safestack.h>
 - # include <openssl/opensslv.h>
 - # include <openssl/ossl_typ.h>
 - # include <openssl/opensslconf.h>
 - 
 - # ifdef CHARSET_EBCDIC
 - #  include <openssl/ebcdic.h>
 - # endif
 - 
 - /*
 -  * Resolve problems on some operating systems with symbol names that clash
 -  * one way or another
 -  */
 - # include <openssl/symhacks.h>
 - 
 - # if OPENSSL_API_COMPAT < 0x10100000L
 - #  include <openssl/opensslv.h>
 - # endif
 - 
 - #ifdef  __cplusplus
 - extern "C" {
 - #endif
 - 
 - # if OPENSSL_API_COMPAT < 0x10100000L
 - #  define SSLeay                  OpenSSL_version_num
 - #  define SSLeay_version          OpenSSL_version
 - #  define SSLEAY_VERSION_NUMBER   OPENSSL_VERSION_NUMBER
 - #  define SSLEAY_VERSION          OPENSSL_VERSION
 - #  define SSLEAY_CFLAGS           OPENSSL_CFLAGS
 - #  define SSLEAY_BUILT_ON         OPENSSL_BUILT_ON
 - #  define SSLEAY_PLATFORM         OPENSSL_PLATFORM
 - #  define SSLEAY_DIR              OPENSSL_DIR
 - 
 - /*
 -  * Old type for allocating dynamic locks. No longer used. Use the new thread
 -  * API instead.
 -  */
 - typedef struct {
 -     int dummy;
 - } CRYPTO_dynlock;
 - 
 - # endif /* OPENSSL_API_COMPAT */
 - 
 - typedef void CRYPTO_RWLOCK;
 - 
 - CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void);
 - int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock);
 - int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock);
 - int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock);
 - void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock);
 - 
 - int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock);
 - 
 - /*
 -  * The following can be used to detect memory leaks in the library. If
 -  * used, it turns on malloc checking
 -  */
 - # define CRYPTO_MEM_CHECK_OFF     0x0   /* Control only */
 - # define CRYPTO_MEM_CHECK_ON      0x1   /* Control and mode bit */
 - # define CRYPTO_MEM_CHECK_ENABLE  0x2   /* Control and mode bit */
 - # define CRYPTO_MEM_CHECK_DISABLE 0x3   /* Control only */
 - 
 - struct crypto_ex_data_st {
 -     STACK_OF(void) *sk;
 - };
 - DEFINE_STACK_OF(void)
 - 
 - /*
 -  * Per class, we have a STACK of function pointers.
 -  */
 - # define CRYPTO_EX_INDEX_SSL              0
 - # define CRYPTO_EX_INDEX_SSL_CTX          1
 - # define CRYPTO_EX_INDEX_SSL_SESSION      2
 - # define CRYPTO_EX_INDEX_X509             3
 - # define CRYPTO_EX_INDEX_X509_STORE       4
 - # define CRYPTO_EX_INDEX_X509_STORE_CTX   5
 - # define CRYPTO_EX_INDEX_DH               6
 - # define CRYPTO_EX_INDEX_DSA              7
 - # define CRYPTO_EX_INDEX_EC_KEY           8
 - # define CRYPTO_EX_INDEX_RSA              9
 - # define CRYPTO_EX_INDEX_ENGINE          10
 - # define CRYPTO_EX_INDEX_UI              11
 - # define CRYPTO_EX_INDEX_BIO             12
 - # define CRYPTO_EX_INDEX_APP             13
 - # define CRYPTO_EX_INDEX__COUNT          14
 - 
 - /*
 -  * This is the default callbacks, but we can have others as well: this is
 -  * needed in Win32 where the application malloc and the library malloc may
 -  * not be the same.
 -  */
 - #define OPENSSL_malloc_init() \
 -     CRYPTO_set_mem_functions(CRYPTO_malloc, CRYPTO_realloc, CRYPTO_free)
 - 
 - int CRYPTO_mem_ctrl(int mode);
 - 
 - # define OPENSSL_malloc(num) \
 -         CRYPTO_malloc(num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_zalloc(num) \
 -         CRYPTO_zalloc(num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_realloc(addr, num) \
 -         CRYPTO_realloc(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_clear_realloc(addr, old_num, num) \
 -         CRYPTO_clear_realloc(addr, old_num, num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_clear_free(addr, num) \
 -         CRYPTO_clear_free(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_free(addr) \
 -         CRYPTO_free(addr, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_memdup(str, s) \
 -         CRYPTO_memdup((str), s, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_strdup(str) \
 -         CRYPTO_strdup(str, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_strndup(str, n) \
 -         CRYPTO_strndup(str, n, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_secure_malloc(num) \
 -         CRYPTO_secure_malloc(num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_secure_zalloc(num) \
 -         CRYPTO_secure_zalloc(num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_secure_free(addr) \
 -         CRYPTO_secure_free(addr, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_secure_clear_free(addr, num) \
 -         CRYPTO_secure_clear_free(addr, num, OPENSSL_FILE, OPENSSL_LINE)
 - # define OPENSSL_secure_actual_size(ptr) \
 -         CRYPTO_secure_actual_size(ptr)
 - 
 - size_t OPENSSL_strlcpy(char *dst, const char *src, size_t siz);
 - size_t OPENSSL_strlcat(char *dst, const char *src, size_t siz);
 - size_t OPENSSL_strnlen(const char *str, size_t maxlen);
 - char *OPENSSL_buf2hexstr(const unsigned char *buffer, long len);
 - unsigned char *OPENSSL_hexstr2buf(const char *str, long *len);
 - int OPENSSL_hexchar2int(unsigned char c);
 - 
 - # define OPENSSL_MALLOC_MAX_NELEMS(type)  (((1U<<(sizeof(int)*8-1))-1)/sizeof(type))
 - 
 - unsigned long OpenSSL_version_num(void);
 - const char *OpenSSL_version(int type);
 - # define OPENSSL_VERSION          0
 - # define OPENSSL_CFLAGS           1
 - # define OPENSSL_BUILT_ON         2
 - # define OPENSSL_PLATFORM         3
 - # define OPENSSL_DIR              4
 - # define OPENSSL_ENGINES_DIR      5
 - 
 - int OPENSSL_issetugid(void);
 - 
 - typedef void CRYPTO_EX_new (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 -                            int idx, long argl, void *argp);
 - typedef void CRYPTO_EX_free (void *parent, void *ptr, CRYPTO_EX_DATA *ad,
 -                              int idx, long argl, void *argp);
 - typedef int CRYPTO_EX_dup (CRYPTO_EX_DATA *to, const CRYPTO_EX_DATA *from,
 -                            void *from_d, int idx, long argl, void *argp);
 - __owur int CRYPTO_get_ex_new_index(int class_index, long argl, void *argp,
 -                             CRYPTO_EX_new *new_func, CRYPTO_EX_dup *dup_func,
 -                             CRYPTO_EX_free *free_func);
 - /* No longer use an index. */
 - int CRYPTO_free_ex_index(int class_index, int idx);
 - 
 - /*
 -  * Initialise/duplicate/free CRYPTO_EX_DATA variables corresponding to a
 -  * given class (invokes whatever per-class callbacks are applicable)
 -  */
 - int CRYPTO_new_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
 - int CRYPTO_dup_ex_data(int class_index, CRYPTO_EX_DATA *to,
 -                        const CRYPTO_EX_DATA *from);
 - 
 - void CRYPTO_free_ex_data(int class_index, void *obj, CRYPTO_EX_DATA *ad);
 - 
 - /*
 -  * Get/set data in a CRYPTO_EX_DATA variable corresponding to a particular
 -  * index (relative to the class type involved)
 -  */
 - int CRYPTO_set_ex_data(CRYPTO_EX_DATA *ad, int idx, void *val);
 - void *CRYPTO_get_ex_data(const CRYPTO_EX_DATA *ad, int idx);
 - 
 - # if OPENSSL_API_COMPAT < 0x10100000L
 - /*
 -  * This function cleans up all "ex_data" state. It mustn't be called under
 -  * potential race-conditions.
 -  */
 - # define CRYPTO_cleanup_all_ex_data() while(0) continue
 - 
 - /*
 -  * The old locking functions have been removed completely without compatibility
 -  * macros. This is because the old functions either could not properly report
 -  * errors, or the returned error values were not clearly documented.
 -  * Replacing the locking functions with with no-ops would cause race condition
 -  * issues in the affected applications. It is far better for them to fail at
 -  * compile time.
 -  * On the other hand, the locking callbacks are no longer used.  Consequently,
 -  * the callback management functions can be safely replaced with no-op macros.
 -  */
 - #  define CRYPTO_num_locks()            (1)
 - #  define CRYPTO_set_locking_callback(func)
 - #  define CRYPTO_get_locking_callback()         (NULL)
 - #  define CRYPTO_set_add_lock_callback(func)
 - #  define CRYPTO_get_add_lock_callback()        (NULL)
 - 
 - /*
 -  * These defines where used in combination with the old locking callbacks,
 -  * they are not called anymore, but old code that's not called might still
 -  * use them.
 -  */
 - #  define CRYPTO_LOCK             1
 - #  define CRYPTO_UNLOCK           2
 - #  define CRYPTO_READ             4
 - #  define CRYPTO_WRITE            8
 - 
 - /* This structure is no longer used */
 - typedef struct crypto_threadid_st {
 -     int dummy;
 - } CRYPTO_THREADID;
 - /* Only use CRYPTO_THREADID_set_[numeric|pointer]() within callbacks */
 - #  define CRYPTO_THREADID_set_numeric(id, val)
 - #  define CRYPTO_THREADID_set_pointer(id, ptr)
 - #  define CRYPTO_THREADID_set_callback(threadid_func)   (0)
 - #  define CRYPTO_THREADID_get_callback()                (NULL)
 - #  define CRYPTO_THREADID_current(id)
 - #  define CRYPTO_THREADID_cmp(a, b)                     (-1)
 - #  define CRYPTO_THREADID_cpy(dest, src)
 - #  define CRYPTO_THREADID_hash(id)                      (0UL)
 - 
 - #  if OPENSSL_API_COMPAT < 0x10000000L
 - #   define CRYPTO_set_id_callback(func)
 - #   define CRYPTO_get_id_callback()                     (NULL)
 - #   define CRYPTO_thread_id()                           (0UL)
 - #  endif /* OPENSSL_API_COMPAT < 0x10000000L */
 - 
 - #  define CRYPTO_set_dynlock_create_callback(dyn_create_function)
 - #  define CRYPTO_set_dynlock_lock_callback(dyn_lock_function)
 - #  define CRYPTO_set_dynlock_destroy_callback(dyn_destroy_function)
 - #  define CRYPTO_get_dynlock_create_callback()          (NULL)
 - #  define CRYPTO_get_dynlock_lock_callback()            (NULL)
 - #  define CRYPTO_get_dynlock_destroy_callback()         (NULL)
 - # endif /* OPENSSL_API_COMPAT < 0x10100000L */
 - 
 - int CRYPTO_set_mem_functions(
 -         void *(*m) (size_t, const char *, int),
 -         void *(*r) (void *, size_t, const char *, int),
 -         void (*f) (void *, const char *, int));
 - int CRYPTO_set_mem_debug(int flag);
 - void CRYPTO_get_mem_functions(
 -         void *(**m) (size_t, const char *, int),
 -         void *(**r) (void *, size_t, const char *, int),
 -         void (**f) (void *, const char *, int));
 - 
 - void *CRYPTO_malloc(size_t num, const char *file, int line);
 - void *CRYPTO_zalloc(size_t num, const char *file, int line);
 - void *CRYPTO_memdup(const void *str, size_t siz, const char *file, int line);
 - char *CRYPTO_strdup(const char *str, const char *file, int line);
 - char *CRYPTO_strndup(const char *str, size_t s, const char *file, int line);
 - void CRYPTO_free(void *ptr, const char *file, int line);
 - void CRYPTO_clear_free(void *ptr, size_t num, const char *file, int line);
 - void *CRYPTO_realloc(void *addr, size_t num, const char *file, int line);
 - void *CRYPTO_clear_realloc(void *addr, size_t old_num, size_t num,
 -                            const char *file, int line);
 - 
 - int CRYPTO_secure_malloc_init(size_t sz, int minsize);
 - int CRYPTO_secure_malloc_done(void);
 - void *CRYPTO_secure_malloc(size_t num, const char *file, int line);
 - void *CRYPTO_secure_zalloc(size_t num, const char *file, int line);
 - void CRYPTO_secure_free(void *ptr, const char *file, int line);
 - void CRYPTO_secure_clear_free(void *ptr, size_t num,
 -                               const char *file, int line);
 - int CRYPTO_secure_allocated(const void *ptr);
 - int CRYPTO_secure_malloc_initialized(void);
 - size_t CRYPTO_secure_actual_size(void *ptr);
 - size_t CRYPTO_secure_used(void);
 - 
 - void OPENSSL_cleanse(void *ptr, size_t len);
 - 
 - # ifndef OPENSSL_NO_CRYPTO_MDEBUG
 - #  define OPENSSL_mem_debug_push(info) \
 -         CRYPTO_mem_debug_push(info, OPENSSL_FILE, OPENSSL_LINE)
 - #  define OPENSSL_mem_debug_pop() \
 -         CRYPTO_mem_debug_pop()
 - int CRYPTO_mem_debug_push(const char *info, const char *file, int line);
 - int CRYPTO_mem_debug_pop(void);
 - 
 - /*-
 -  * Debugging functions (enabled by CRYPTO_set_mem_debug(1))
 -  * The flag argument has the following significance:
 -  *   0:   called before the actual memory allocation has taken place
 -  *   1:   called after the actual memory allocation has taken place
 -  */
 - void CRYPTO_mem_debug_malloc(void *addr, size_t num, int flag,
 -         const char *file, int line);
 - void CRYPTO_mem_debug_realloc(void *addr1, void *addr2, size_t num, int flag,
 -         const char *file, int line);
 - void CRYPTO_mem_debug_free(void *addr, int flag,
 -         const char *file, int line);
 - 
 - #  ifndef OPENSSL_NO_STDIO
 - int CRYPTO_mem_leaks_fp(FILE *);
 - #  endif
 - int CRYPTO_mem_leaks(BIO *bio);
 - # endif
 - 
 - /* die if we have to */
 - ossl_noreturn void OPENSSL_die(const char *assertion, const char *file, int line);
 - # if OPENSSL_API_COMPAT < 0x10100000L
 - #  define OpenSSLDie(f,l,a) OPENSSL_die((a),(f),(l))
 - # endif
 - # define OPENSSL_assert(e) \
 -     (void)((e) ? 0 : (OPENSSL_die("assertion failed: " #e, OPENSSL_FILE, OPENSSL_LINE), 1))
 - 
 - int OPENSSL_isservice(void);
 - 
 - int FIPS_mode(void);
 - int FIPS_mode_set(int r);
 - 
 - void OPENSSL_init(void);
 - 
 - struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result);
 - int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
 - int OPENSSL_gmtime_diff(int *pday, int *psec,
 -                         const struct tm *from, const struct tm *to);
 - 
 - /*
 -  * CRYPTO_memcmp returns zero iff the |len| bytes at |a| and |b| are equal.
 -  * It takes an amount of time dependent on |len|, but independent of the
 -  * contents of |a| and |b|. Unlike memcmp, it cannot be used to put elements
 -  * into a defined order as the return value when a != b is undefined, other
 -  * than to be non-zero.
 -  */
 - int CRYPTO_memcmp(const volatile void * volatile in_a,
 -                   const volatile void * volatile in_b,
 -                   size_t len);
 - 
 - /* Standard initialisation options */
 - # define OPENSSL_INIT_NO_LOAD_CRYPTO_STRINGS 0x00000001L
 - # define OPENSSL_INIT_LOAD_CRYPTO_STRINGS    0x00000002L
 - # define OPENSSL_INIT_ADD_ALL_CIPHERS        0x00000004L
 - # define OPENSSL_INIT_ADD_ALL_DIGESTS        0x00000008L
 - # define OPENSSL_INIT_NO_ADD_ALL_CIPHERS     0x00000010L
 - # define OPENSSL_INIT_NO_ADD_ALL_DIGESTS     0x00000020L
 - # define OPENSSL_INIT_LOAD_CONFIG            0x00000040L
 - # define OPENSSL_INIT_NO_LOAD_CONFIG         0x00000080L
 - # define OPENSSL_INIT_ASYNC                  0x00000100L
 - # define OPENSSL_INIT_ENGINE_RDRAND          0x00000200L
 - # define OPENSSL_INIT_ENGINE_DYNAMIC         0x00000400L
 - # define OPENSSL_INIT_ENGINE_OPENSSL         0x00000800L
 - # define OPENSSL_INIT_ENGINE_CRYPTODEV       0x00001000L
 - # define OPENSSL_INIT_ENGINE_CAPI            0x00002000L
 - # define OPENSSL_INIT_ENGINE_PADLOCK         0x00004000L
 - # define OPENSSL_INIT_ENGINE_AFALG           0x00008000L
 - /* OPENSSL_INIT flag 0x00010000 reserved for internal use */
 - /* OPENSSL_INIT flag range 0xfff00000 reserved for OPENSSL_init_ssl() */
 - /* Max OPENSSL_INIT flag value is 0x80000000 */
 - 
 - /* openssl and dasync not counted as builtin */
 - # define OPENSSL_INIT_ENGINE_ALL_BUILTIN \
 -     (OPENSSL_INIT_ENGINE_RDRAND | OPENSSL_INIT_ENGINE_DYNAMIC \
 -     | OPENSSL_INIT_ENGINE_CRYPTODEV | OPENSSL_INIT_ENGINE_CAPI | \
 -     OPENSSL_INIT_ENGINE_PADLOCK)
 - 
 - 
 - /* Library initialisation functions */
 - void OPENSSL_cleanup(void);
 - int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings);
 - int OPENSSL_atexit(void (*handler)(void));
 - void OPENSSL_thread_stop(void);
 - 
 - /* Low-level control of initialization */
 - OPENSSL_INIT_SETTINGS *OPENSSL_INIT_new(void);
 - # ifndef OPENSSL_NO_STDIO
 - int OPENSSL_INIT_set_config_appname(OPENSSL_INIT_SETTINGS *settings,
 -                                     const char *config_file);
 - # endif
 - void OPENSSL_INIT_free(OPENSSL_INIT_SETTINGS *settings);
 - 
 - # if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG)
 - #  if defined(_WIN32)
 - #   if defined(BASETYPES) || defined(_WINDEF_H)
 - /* application has to include <windows.h> in order to use this */
 - typedef DWORD CRYPTO_THREAD_LOCAL;
 - typedef DWORD CRYPTO_THREAD_ID;
 - 
 - typedef LONG CRYPTO_ONCE;
 - #    define CRYPTO_ONCE_STATIC_INIT 0
 - #   endif
 - #  else
 - #   include <pthread.h>
 - typedef pthread_once_t CRYPTO_ONCE;
 - typedef pthread_key_t CRYPTO_THREAD_LOCAL;
 - typedef pthread_t CRYPTO_THREAD_ID;
 - 
 - #   define CRYPTO_ONCE_STATIC_INIT PTHREAD_ONCE_INIT
 - #  endif
 - # endif
 - 
 - # if !defined(CRYPTO_ONCE_STATIC_INIT)
 - typedef unsigned int CRYPTO_ONCE;
 - typedef unsigned int CRYPTO_THREAD_LOCAL;
 - typedef unsigned int CRYPTO_THREAD_ID;
 - #  define CRYPTO_ONCE_STATIC_INIT 0
 - # endif
 - 
 - int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void));
 - 
 - int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *));
 - void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key);
 - int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val);
 - int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key);
 - 
 - CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void);
 - int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b);
 - 
 - /* BEGIN ERROR CODES */
 - /*
 -  * The following lines are auto generated by the script mkerr.pl. Any changes
 -  * made after this point may be overwritten when the script is next run.
 -  */
 - 
 - int ERR_load_CRYPTO_strings(void);
 - 
 - /* Error codes for the CRYPTO functions. */
 - 
 - /* Function codes. */
 - # define CRYPTO_F_CRYPTO_DUP_EX_DATA                      110
 - # define CRYPTO_F_CRYPTO_FREE_EX_DATA                     111
 - # define CRYPTO_F_CRYPTO_GET_EX_NEW_INDEX                 100
 - # define CRYPTO_F_CRYPTO_MEMDUP                           115
 - # define CRYPTO_F_CRYPTO_NEW_EX_DATA                      112
 - # define CRYPTO_F_CRYPTO_SET_EX_DATA                      102
 - # define CRYPTO_F_FIPS_MODE_SET                           109
 - # define CRYPTO_F_GET_AND_LOCK                            113
 - # define CRYPTO_F_OPENSSL_BUF2HEXSTR                      117
 - # define CRYPTO_F_OPENSSL_HEXSTR2BUF                      118
 - # define CRYPTO_F_OPENSSL_INIT_CRYPTO                     116
 - 
 - /* Reason codes. */
 - # define CRYPTO_R_FIPS_MODE_NOT_SUPPORTED                 101
 - # define CRYPTO_R_ILLEGAL_HEX_DIGIT                       102
 - # define CRYPTO_R_ODD_NUMBER_OF_DIGITS                    103
 - 
 - # ifdef  __cplusplus
 - }
 - # endif
 - #endif
 
 
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