text: /* o_init.c */
  /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   * project.
   */
  /* ====================================================================
   * Copyright (c) 2011 The OpenSSL Project.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer. 
   *
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *
   * 3. All advertising materials mentioning features or use of this
   *    software must display the following acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
   *
   * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
   *    endorse or promote products derived from this software without
   *    prior written permission. For written permission, please contact
   *    openssl-core@openssl.org.
   *
   * 5. Products derived from this software may not be called "OpenSSL"
   *    nor may "OpenSSL" appear in their names without prior written
   *    permission of the OpenSSL Project.
   *
   * 6. Redistributions of any form whatsoever must retain the following
   *    acknowledgment:
   *    "This product includes software developed by the OpenSSL Project
   *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
   *
   * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
   * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
   * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
   * OF THE POSSIBILITY OF SUCH DAMAGE.
   * ====================================================================
   *
   */
  
  #include <e_os.h>
  #include <openssl/err.h>
  #ifdef OPENSSL_FIPS
  #include <openssl/fips.h>
  #include <openssl/rand.h>
  #endif
  
  #if defined(__GNUC__) && __GNUC__>=2
    void OPENSSL_init(void) __attribute__((constructor));
    /* Most commonly this results in pointer to OPENSSL_init to be dropped
     * to .ctors segment, which is traversed by GCC crtbegin.o upon
     * program startup. Except on a.out OpenBSD where it results in
     * _GLOBAL_$I$init() {init();} being auto-generated by
     * compiler... But one way or another this is believed to cover
     * *all* GCC targets. */
  #elif defined(_MSC_VER)
  # ifdef _WINDLL
    __declspec(dllexport)	/* this is essentially cosmetics... */
  # endif
    void OPENSSL_init(void);
    static int init_wrapper(void) { OPENSSL_init(); return 0; }
  # ifdef _WIN64
  # pragma section(".CRT$XCU",read)
    __declspec(allocate(".CRT$XCU"))
  # else
  # pragma data_seg(".CRT$XCU")
  # endif
    static int (*p)(void) = init_wrapper;
    /* This results in pointer to init to appear in .CRT segment,
     * which is traversed by Visual C run-time initialization code.
     * This applies to both Win32 and [all flavors of] Win64. */
  # pragma data_seg()
  #elif defined(__SUNPRO_C)
    void OPENSSL_init(void);
  # pragma init(OPENSSL_init)
    /* This results in a call to init to appear in .init segment. */
  #elif defined(__DECC) && (defined(__VMS) || defined(VMS))
    void OPENSSL_init(void);
  # pragma __nostandard
    globaldef { "LIB$INITIALIZ" } readonly _align (LONGWORD)
  	int spare[8] = {0};
    globaldef { "LIB$INITIALIZE" } readonly _align (LONGWORD)
  	void (*x_OPENSSL_init)(void) = OPENSSL_init;
    /* Refer to LIB$INITIALIZE to ensure it exists in the image. */
    int lib$initialize();
    globaldef int (*lib_init_ref)() = lib$initialize;
  # pragma __standard
  #elif 0
    The rest has to be taken care of through command line:
  
  	-Wl,-init,OPENSSL_init		on OSF1 and IRIX
  	-Wl,+init,OPENSSL_init		on HP-UX
  	-Wl,-binitfini:OPENSSL_init	on AIX
  
    On ELF platforms this results in a call to OPENSSL_init to appear in
    .init segment...
  #endif
  
  /* Perform any essential OpenSSL initialization operations.
   * Currently only sets FIPS callbacks
   */
  
  void OPENSSL_init(void)
  	{
  	static int done = 0;
  	if (done)
  		return;
  	done = 1;
  #ifdef OPENSSL_FIPS
  	FIPS_set_locking_callbacks(CRYPTO_lock, CRYPTO_add_lock);
  	FIPS_set_error_callbacks(ERR_put_error, ERR_add_error_vdata);
  	FIPS_set_malloc_callbacks(CRYPTO_malloc, CRYPTO_free);
  	RAND_init_fips();
  #endif
  #if 0
  	fprintf(stderr, "Called OPENSSL_init\n");
  #endif
  	}
  
  