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Diffstat (limited to 'crypto/o_init.c')
-rw-r--r-- | crypto/o_init.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/crypto/o_init.c b/crypto/o_init.c new file mode 100644 index 0000000..c6bc754 --- /dev/null +++ b/crypto/o_init.c @@ -0,0 +1,118 @@ +/* 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> + +#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) + { + fprintf(stderr, "Called OPENSSL_init\n"); + } + + |