1 /* $OpenBSD: ssl_init.c,v 1.6 2023/11/22 15:53:53 tb Exp $ */ 2 /* 3 * Copyright (c) 2018 Bob Beck <beck@openbsd.org> 4 * 5 * Permission to use, copy, modify, and distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18 /* OpenSSL style init */ 19 20 #include <pthread.h> 21 #include <stdio.h> 22 23 #include <openssl/objects.h> 24 25 #include "ssl_local.h" 26 27 static pthread_t ssl_init_thread; 28 29 int 30 SSL_library_init(void) 31 { 32 return OPENSSL_init_ssl(0, NULL); 33 } 34 LSSL_ALIAS(SSL_library_init); 35 36 static void 37 OPENSSL_init_ssl_internal(void) 38 { 39 ssl_init_thread = pthread_self(); 40 SSL_load_error_strings(); 41 } 42 43 int 44 OPENSSL_init_ssl(uint64_t opts, const void *settings) 45 { 46 static pthread_once_t once = PTHREAD_ONCE_INIT; 47 48 if (pthread_equal(pthread_self(), ssl_init_thread)) 49 return 1; /* don't recurse */ 50 51 OPENSSL_init_crypto(opts, settings); 52 53 if (pthread_once(&once, OPENSSL_init_ssl_internal) != 0) 54 return 0; 55 56 return 1; 57 } 58 LSSL_ALIAS(OPENSSL_init_ssl); 59