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      1 /*	$NetBSD: ssl_applink.c,v 1.8 2024/08/18 20:46:50 christos Exp $	*/
      2 
      3 /*
      4  * include/ssl_applink.c -- common NTP code for openssl/applink.c
      5  *
      6  * Each program which uses OpenSSL should include this file in _one_
      7  * of its source files and call ssl_applink() before any OpenSSL
      8  * functions.
      9  */
     10 
     11 #if defined(OPENSSL) && defined(SYS_WINNT)
     12 # ifdef _MSC_VER
     13 #  pragma warning(push)
     14 #  pragma warning(disable: 4152)
     15 #  ifndef OPENSSL_NO_AUTOLINK
     16 #   include "msvc_ssl_autolib.h"
     17 #  endif
     18 # endif
     19 # if OPENSSL_VERSION_NUMBER < 0x10100000L || OPENSSL_VERSION_NUMBER >= 0x10101000L
     20 #  include <openssl/applink.c>
     21 # endif
     22 # ifdef _MSC_VER
     23 #  pragma warning(pop)
     24 # endif
     25 #endif
     26 
     27 #if defined(OPENSSL) && defined(_MSC_VER) && defined(_DEBUG)
     28 #define WRAP_DBG_MALLOC
     29 #endif
     30 
     31 #ifdef WRAP_DBG_MALLOC
     32 static void *wrap_dbg_malloc(size_t s, const char *f, int l);
     33 static void *wrap_dbg_realloc(void *p, size_t s, const char *f, int l);
     34 static void wrap_dbg_free(void *p);
     35 static void wrap_dbg_free_ex(void *p, const char *f, int l);
     36 #endif
     37 
     38 
     39 #if defined(OPENSSL) && defined(SYS_WINNT)
     40 
     41 void ssl_applink(void);
     42 
     43 void
     44 ssl_applink(void)
     45 {
     46 #if OPENSSL_VERSION_NUMBER >= 0x10100000L
     47 
     48 #   ifdef WRAP_DBG_MALLOC
     49 	CRYPTO_set_mem_functions(wrap_dbg_malloc, wrap_dbg_realloc, wrap_dbg_free_ex);
     50 #   else
     51 	OPENSSL_malloc_init();
     52 #   endif
     53 
     54 #  else
     55 
     56 #   ifdef WRAP_DBG_MALLOC
     57 	CRYPTO_set_mem_ex_functions(wrap_dbg_malloc, wrap_dbg_realloc, wrap_dbg_free);
     58 #   else
     59 	CRYPTO_malloc_init();
     60 #   endif
     61 
     62 #endif /* OpenSSL version cascade */
     63 }
     64 #else	/* !OPENSSL || !SYS_WINNT */
     65 #define ssl_applink()	do {} while (0)
     66 #endif
     67 
     68 
     69 #ifdef WRAP_DBG_MALLOC
     70 /*
     71  * OpenSSL malloc overriding uses different parameters
     72  * for DEBUG malloc/realloc/free (lacking block type).
     73  * Simple wrappers convert.
     74  */
     75 static void *wrap_dbg_malloc(size_t s, const char *f, int l)
     76 {
     77 	void *ret;
     78 
     79 	ret = _malloc_dbg(s, _NORMAL_BLOCK, f, l);
     80 	return ret;
     81 }
     82 
     83 static void *wrap_dbg_realloc(void *p, size_t s, const char *f, int l)
     84 {
     85 	void *ret;
     86 
     87 	ret = _realloc_dbg(p, s, _NORMAL_BLOCK, f, l);
     88 	return ret;
     89 }
     90 
     91 static void wrap_dbg_free(void *p)
     92 {
     93 	_free_dbg(p, _NORMAL_BLOCK);
     94 }
     95 
     96 static void wrap_dbg_free_ex(void *p, const char *f, int l)
     97 {
     98 	(void)f;
     99 	(void)l;
    100 	_free_dbg(p, _NORMAL_BLOCK);
    101 }
    102 #endif	/* WRAP_DBG_MALLOC */
    103