| /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
| * All rights reserved. |
| * |
| * This package is an SSL implementation written |
| * by Eric Young (eay@cryptsoft.com). |
| * The implementation was written so as to conform with Netscapes SSL. |
| * |
| * This library is free for commercial and non-commercial use as long as |
| * the following conditions are aheared to. The following conditions |
| * apply to all code found in this distribution, be it the RC4, RSA, |
| * lhash, DES, etc., code; not just the SSL code. The SSL documentation |
| * included with this distribution is covered by the same copyright terms |
| * except that the holder is Tim Hudson (tjh@cryptsoft.com). |
| * |
| * Copyright remains Eric Young's, and as such any Copyright notices in |
| * the code are not to be removed. |
| * If this package is used in a product, Eric Young should be given attribution |
| * as the author of the parts of the library used. |
| * This can be in the form of a textual message at program startup or |
| * in documentation (online or textual) provided with the package. |
| * |
| * 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 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 acknowledgement: |
| * "This product includes cryptographic software written by |
| * Eric Young (eay@cryptsoft.com)" |
| * The word 'cryptographic' can be left out if the rouines from the library |
| * being used are not cryptographic related :-). |
| * 4. If you include any Windows specific code (or a derivative thereof) from |
| * the apps directory (application code) you must include an acknowledgement: |
| * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
| * ANY EXPRESS 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 AUTHOR OR 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. |
| * |
| * The licence and distribution terms for any publically available version or |
| * derivative of this code cannot be changed. i.e. this code cannot simply be |
| * copied and put under another distribution licence |
| * [including the GNU Public Licence.] */ |
| |
| #include <openssl/thread.h> |
| |
| #include <errno.h> |
| #include <string.h> |
| |
| #if defined(OPENSSL_WINDOWS) |
| #pragma warning(push, 3) |
| #include <windows.h> |
| #pragma warning(pop) |
| #endif |
| |
| #include <openssl/mem.h> |
| |
| |
| #define CRYPTO_LOCK_ITEM(x) #x |
| |
| /* lock_names contains the names of all the locks defined in thread.h. */ |
| static const char *const lock_names[] = { |
| CRYPTO_LOCK_LIST |
| }; |
| |
| #undef CRYPTO_LOCK_ITEM |
| |
| #define CRYPTO_NUM_LOCKS (sizeof(lock_names) / sizeof(lock_names[0])) |
| |
| static void (*locking_callback)(int mode, int lock_num, const char *file, |
| int line) = 0; |
| static int (*add_lock_callback)(int *pointer, int amount, int lock_num, |
| const char *file, int line) = 0; |
| static void (*threadid_callback)(CRYPTO_THREADID *) = 0; |
| |
| |
| int CRYPTO_num_locks(void) { return CRYPTO_NUM_LOCKS; } |
| |
| void CRYPTO_set_locking_callback(void (*func)(int mode, int lock_num, |
| const char *file, int line)) { |
| locking_callback = func; |
| } |
| |
| void CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int lock_num, |
| const char *file, int line)) { |
| add_lock_callback = func; |
| } |
| |
| const char *CRYPTO_get_lock_name(int lock_num) { |
| if (lock_num >= 0 && lock_num < CRYPTO_NUM_LOCKS) { |
| return lock_names[lock_num]; |
| } else { |
| return "ERROR"; |
| } |
| } |
| |
| int CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *)) { |
| if (threadid_callback) { |
| return 0; |
| } |
| threadid_callback = func; |
| return 1; |
| } |
| |
| void CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val) { |
| memset(id, 0, sizeof(*id)); |
| id->val = val; |
| } |
| |
| void CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr) { |
| memset(id, 0, sizeof(*id)); |
| id->ptr = ptr; |
| } |
| |
| void (*CRYPTO_get_locking_callback(void))(int mode, int lock_num, |
| const char *file, int line) { |
| return locking_callback; |
| } |
| |
| int (*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int lock_num, |
| const char *file, int line) { |
| return add_lock_callback; |
| } |
| |
| void CRYPTO_lock(int mode, int lock_num, const char *file, int line) { |
| if (locking_callback != NULL) { |
| locking_callback(mode, lock_num, file, line); |
| } |
| } |
| |
| int CRYPTO_add_lock(int *pointer, int amount, int lock_num, const char *file, |
| int line) { |
| int ret = 0; |
| |
| if (add_lock_callback != NULL) { |
| ret = add_lock_callback(pointer, amount, lock_num, file, line); |
| } else { |
| CRYPTO_lock(CRYPTO_LOCK | CRYPTO_WRITE, lock_num, file, line); |
| ret = *pointer + amount; |
| *pointer = ret; |
| CRYPTO_lock(CRYPTO_UNLOCK | CRYPTO_WRITE, lock_num, file, line); |
| } |
| |
| return ret; |
| } |
| |
| void CRYPTO_THREADID_current(CRYPTO_THREADID *id) { |
| if (threadid_callback) { |
| threadid_callback(id); |
| return; |
| } |
| |
| #if defined(OPENSSL_WINDOWS) |
| CRYPTO_THREADID_set_numeric(id, (unsigned long)GetCurrentThreadId()); |
| #else |
| /* For everything else, default to using the address of 'errno' */ |
| CRYPTO_THREADID_set_pointer(id, (void *)&errno); |
| #endif |
| } |
| |
| int CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b) { |
| return memcmp(a, b, sizeof(*a)); |
| } |
| |
| void CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src) { |
| memcpy(dest, src, sizeof(*src)); |
| } |
| |
| uint32_t CRYPTO_THREADID_hash(const CRYPTO_THREADID *id) { |
| return OPENSSL_hash32(id, sizeof(CRYPTO_THREADID)); |
| } |
| |
| void CRYPTO_set_id_callback(unsigned long (*func)(void)) {} |
| |
| void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *( |
| *dyn_create_function)(const char *file, int line)) {} |
| |
| void CRYPTO_set_dynlock_lock_callback(void (*dyn_lock_function)( |
| int mode, struct CRYPTO_dynlock_value *l, const char *file, int line)) {} |
| |
| void CRYPTO_set_dynlock_destroy_callback(void (*dyn_destroy_function)( |
| struct CRYPTO_dynlock_value *l, const char *file, int line)) {} |