2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2011 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * openssl-core@openssl.org.
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
56 #include <openssl/err.h>
58 #include <openssl/fips.h>
59 #include <openssl/rand.h>
62 #if defined(__GNUC__) && __GNUC__>=2
63 void OPENSSL_init(void) __attribute__((constructor));
64 /* Most commonly this results in pointer to OPENSSL_init to be dropped
65 * to .ctors segment, which is traversed by GCC crtbegin.o upon
66 * program startup. Except on a.out OpenBSD where it results in
67 * _GLOBAL_$I$init() {init();} being auto-generated by
68 * compiler... But one way or another this is believed to cover
69 * *all* GCC targets. */
70 #elif defined(_MSC_VER)
72 __declspec(dllexport) /* this is essentially cosmetics... */
74 void OPENSSL_init(void);
75 static int init_wrapper(void) { OPENSSL_init(); return 0; }
77 # pragma section(".CRT$XCU",read)
78 __declspec(allocate(".CRT$XCU"))
80 # pragma data_seg(".CRT$XCU")
82 static int (*p)(void) = init_wrapper;
83 /* This results in pointer to init to appear in .CRT segment,
84 * which is traversed by Visual C run-time initialization code.
85 * This applies to both Win32 and [all flavors of] Win64. */
87 #elif defined(__SUNPRO_C)
88 void OPENSSL_init(void);
89 # pragma init(OPENSSL_init)
90 /* This results in a call to init to appear in .init segment. */
91 #elif defined(__DECC) && (defined(__VMS) || defined(VMS))
92 void OPENSSL_init(void);
94 globaldef { "LIB$INITIALIZ" } readonly _align (LONGWORD)
96 globaldef { "LIB$INITIALIZE" } readonly _align (LONGWORD)
97 void (*x_OPENSSL_init)(void) = OPENSSL_init;
98 /* Refer to LIB$INITIALIZE to ensure it exists in the image. */
100 globaldef int (*lib_init_ref)() = lib$initialize;
103 The rest has to be taken care of through command line:
105 -Wl,-init,OPENSSL_init on OSF1 and IRIX
106 -Wl,+init,OPENSSL_init on HP-UX
107 -Wl,-binitfini:OPENSSL_init on AIX
109 On ELF platforms this results in a call to OPENSSL_init to appear in
113 /* Perform any essential OpenSSL initialization operations.
114 * Currently only sets FIPS callbacks
117 void OPENSSL_init(void)
124 FIPS_set_locking_callbacks(CRYPTO_lock, CRYPTO_add_lock);
125 FIPS_set_error_callbacks(ERR_put_error, ERR_add_error_vdata);
126 FIPS_set_malloc_callbacks(CRYPTO_malloc, CRYPTO_free);
130 fprintf(stderr, "Called OPENSSL_init\n");