1 /* crypto/cryptlib.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
62 #include <openssl/crypto.h>
64 #if defined(WIN32) || defined(WIN16)
65 static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
68 /* real #defines in crypto.h, keep these upto date */
69 static const char* lock_names[CRYPTO_NUM_LOCKS] =
97 #if CRYPTO_NUM_LOCKS != 26
98 # error "Inconsistency between crypto.h and cryptlib.c"
102 static STACK *app_locks=NULL;
104 static void (MS_FAR *locking_callback)(int mode,int type,
105 const char *file,int line)=NULL;
106 static int (MS_FAR *add_lock_callback)(int *pointer,int amount,
107 int type,const char *file,int line)=NULL;
108 static unsigned long (MS_FAR *id_callback)(void)=NULL;
109 int CRYPTO_get_new_lockid(char *name)
114 /* A hack to make Visual C++ 5.0 work correctly when linking as
115 * a DLL using /MT. Without this, the application cannot use
116 * and floating point printf's.
117 * It also seems to be needed for Visual C 1.5 (win16) */
118 #if defined(WIN32) || defined(WIN16)
119 SSLeay_MSVC5_hack=(double)name[0]*(double)name[1];
122 if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL))
124 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE);
127 if ((str=BUF_strdup(name)) == NULL)
129 i=sk_push(app_locks,str);
133 i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */
137 int CRYPTO_num_locks(void)
139 return CRYPTO_NUM_LOCKS;
142 void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file,
145 return(locking_callback);
148 int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type,
149 const char *file,int line)
151 return(add_lock_callback);
154 void CRYPTO_set_locking_callback(void (*func)(int mode,int type,
155 const char *file,int line))
157 locking_callback=func;
160 void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type,
161 const char *file,int line))
163 add_lock_callback=func;
166 unsigned long (*CRYPTO_get_id_callback(void))(void)
171 void CRYPTO_set_id_callback(unsigned long (*func)(void))
176 unsigned long CRYPTO_thread_id(void)
180 if (id_callback == NULL)
183 ret=(unsigned long)GetCurrentTask();
185 ret=(unsigned long)GetCurrentThreadId();
186 #elif defined(GETPID_IS_MEANINGLESS)
189 ret=(unsigned long)getpid();
197 void CRYPTO_lock(int mode, int type, const char *file, int line)
201 char *rw_text,*operation_text;
203 if (mode & CRYPTO_LOCK)
204 operation_text="lock ";
205 else if (mode & CRYPTO_UNLOCK)
206 operation_text="unlock";
208 operation_text="ERROR ";
210 if (mode & CRYPTO_READ)
212 else if (mode & CRYPTO_WRITE)
217 fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n",
218 CRYPTO_thread_id(), rw_text, operation_text,
219 CRYPTO_get_lock_name(type), file, line);
222 if (locking_callback != NULL)
223 locking_callback(mode,type,file,line);
226 int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
231 if (add_lock_callback != NULL)
234 int before= *pointer;
237 ret=add_lock_callback(pointer,amount,type,file,line);
239 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
242 CRYPTO_get_lock_name(type),
249 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line);
251 ret= *pointer+amount;
253 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
256 CRYPTO_get_lock_name(type),
260 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line);
265 const char *CRYPTO_get_lock_name(int type)
269 else if (type < CRYPTO_NUM_LOCKS)
270 return(lock_names[type]);
271 else if (type-CRYPTO_NUM_LOCKS >= sk_num(app_locks))
274 return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS));
280 /* All we really need to do is remove the 'error' state when a thread
283 BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason,
288 case DLL_PROCESS_ATTACH:
290 case DLL_THREAD_ATTACH:
292 case DLL_THREAD_DETACH:
295 case DLL_PROCESS_DETACH: