1 files changed, 353 insertions, 0 deletions

diff --git a/src/lib/libcrypto/mem.c b/src/lib/libcrypto/mem.c
new file mode 100644
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--- /dev/null
+++ b/src/lib/libcrypto/mem.c
@@ -0,0 +1,353 @@
+/* crypto/mem.c */
+/* 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 <stdio.h>
+#include <stdlib.h>
+#include "buffer.h"
+#include "bio.h"
+#include "lhash.h"
+#include "cryptlib.h"
+
+static int mh_mode=CRYPTO_MEM_CHECK_OFF;
+static unsigned long order=0;
+
+static LHASH *mh=NULL;
+
+typedef struct mem_st
+        {
+        char *addr;
+        int num;
+        char *file;
+        int line;
+        unsigned long order;
+        } MEM;
+
+int CRYPTO_mem_ctrl(mode)
+int mode;
+        {
+        int ret=mh_mode;
+
+        CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
+        switch (mode)
+                {
+        case CRYPTO_MEM_CHECK_ON:
+                mh_mode|=CRYPTO_MEM_CHECK_ON;
+                break;
+        case CRYPTO_MEM_CHECK_OFF:
+                mh_mode&= ~CRYPTO_MEM_CHECK_ON;
+                break;
+        default:
+                break;
+                }
+        CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
+        return(ret);
+        }
+
+static int mem_cmp(a,b)
+MEM *a,*b;
+        {
+        return(a->addr - b->addr);
+        }
+
+static unsigned long mem_hash(a)
+MEM *a;
+        {
+        unsigned long ret;
+
+        ret=(unsigned long)a->addr;
+
+        ret=ret*17851+(ret>>14)*7+(ret>>4)*251;
+        return(ret);
+        }
+
+static char *(*malloc_func)()=  (char *(*)())malloc;
+static char *(*realloc_func)()= (char *(*)())realloc;
+static void (*free_func)()=     (void (*)())free;
+
+void CRYPTO_set_mem_functions(m,r,f)
+char *(*m)();
+char *(*r)();
+void (*f)();
+        {
+        if ((m == NULL) || (r == NULL) || (f == NULL)) return;
+        malloc_func=m;
+        realloc_func=r;
+        free_func=f;
+        }
+
+void CRYPTO_get_mem_functions(m,r,f)
+char *(**m)();
+char *(**r)();
+void (**f)();
+        {
+        if (m != NULL) *m=malloc_func;
+        if (r != NULL) *r=realloc_func;
+        if (f != NULL) *f=free_func;
+        }
+
+char *CRYPTO_malloc(num)
+int num;
+        {
+        return(malloc_func(num));
+        }
+
+char *CRYPTO_realloc(str,num)
+char *str;
+int num;
+        {
+        return(realloc_func(str,num));
+        }
+
+void CRYPTO_free(str)
+char *str;
+        {
+        free_func(str);
+        }
+
+char *CRYPTO_dbg_malloc(num,file,line)
+int num;
+char *file;
+int line;
+        {
+        char *ret;
+        MEM *m,*mm;
+
+        if ((ret=malloc_func(num)) == NULL)
+                return(NULL);
+
+        if (mh_mode & CRYPTO_MEM_CHECK_ON)
+                {
+                if ((m=(MEM *)malloc(sizeof(MEM))) == NULL)
+                        {
+                        free(ret);
+                        return(NULL);
+                        }
+                CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
+                if (mh == NULL)
+                        {
+                        if ((mh=lh_new(mem_hash,mem_cmp)) == NULL)
+                                {
+                                free(ret);
+                                free(m);
+                                return(NULL);
+                                }
+                        }
+
+                m->addr=ret;
+                m->file=file;
+                m->line=line;
+                m->num=num;
+                m->order=order++;
+                if ((mm=(MEM *)lh_insert(mh,(char *)m)) != NULL)
+                        {
+                        /* Not good, but don't sweat it */
+                        free(mm);
+                        }
+                CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
+                }
+        return(ret);
+        }
+
+void CRYPTO_dbg_free(addr)
+char *addr;
+        {
+        MEM m,*mp;
+
+        if ((mh_mode & CRYPTO_MEM_CHECK_ON) && (mh != NULL))
+                {
+                CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
+                m.addr=addr;
+                mp=(MEM *)lh_delete(mh,(char *)&m);
+                if (mp != NULL)
+                        free(mp);
+                CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
+                }
+        free_func(addr);
+        }
+
+char *CRYPTO_dbg_realloc(addr,num,file,line)
+char *addr;
+int num;
+char *file;
+int line;
+        {
+        char *ret;
+        MEM m,*mp;
+
+        ret=realloc_func(addr,num);
+        if (ret == addr) return(ret);
+
+        if (mh_mode & CRYPTO_MEM_CHECK_ON)
+                {
+                if (ret == NULL) return(NULL);
+                m.addr=addr;
+                CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
+                mp=(MEM *)lh_delete(mh,(char *)&m);
+                if (mp != NULL)
+                        {
+                        mp->addr=ret;
+                        lh_insert(mh,(char *)mp);
+                        }
+                CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
+                }
+        return(ret);
+        }
+
+char *CRYPTO_remalloc(a,n)
+char *a;
+int n;
+        {
+        if (a != NULL) Free(a);
+        a=(char *)Malloc(n);
+        return(a);
+        }
+
+char *CRYPTO_dbg_remalloc(a,n,file,line)
+char *a;
+int n;
+char *file;
+int line;
+        {
+        if (a != NULL) CRYPTO_dbg_free(a);
+        a=(char *)CRYPTO_dbg_malloc(n,file,line);
+        return(a);
+        }
+
+
+typedef struct mem_leak_st
+        {
+        BIO *bio;
+        int chunks;
+        long bytes;
+        } MEM_LEAK;
+
+static void print_leak(m,l)
+MEM *m;
+MEM_LEAK *l;
+        {
+        char buf[128];
+
+        sprintf(buf,"%5ld file=%s, line=%d, number=%d, address=%08lX\n",
+                m->order,m->file,m->line,m->num,(long)m->addr);
+        BIO_puts(l->bio,buf);
+        l->chunks++;
+        l->bytes+=m->num;
+        }
+
+void CRYPTO_mem_leaks(b)
+BIO *b;
+        {
+        MEM_LEAK ml;
+        char buf[80];
+
+        if (mh == NULL) return;
+        ml.bio=b;
+        ml.bytes=0;
+        ml.chunks=0;
+        CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
+        lh_doall_arg(mh,(void (*)())print_leak,(char *)&ml);
+        CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
+        if (ml.chunks != 0)
+                {
+                sprintf(buf,"%ld bytes leaked in %d chunks\n",
+                        ml.bytes,ml.chunks);
+                BIO_puts(b,buf);
+                }
+        /*
+        lh_stats_bio(mh,b);
+        lh_node_stats_bio(mh,b);
+        lh_node_usage_stats_bio(mh,b);
+        */
+        }
+
+static void (*mem_cb)()=NULL;
+
+static void cb_leak(m,cb)
+MEM *m;
+char *cb;
+        {
+        void (*mem_callback)()=(void (*)())cb;
+        mem_callback(m->order,m->file,m->line,m->num,m->addr);
+        }
+
+void CRYPTO_mem_leaks_cb(cb)
+void (*cb)();
+        {
+        if (mh == NULL) return;
+        CRYPTO_w_lock(CRYPTO_LOCK_MALLOC);
+        mem_cb=cb;
+        lh_doall_arg(mh,(void (*)())cb_leak,(char *)mem_cb);
+        mem_cb=NULL;
+        CRYPTO_w_unlock(CRYPTO_LOCK_MALLOC);
+        }
+
+#ifndef NO_FP_API
+void CRYPTO_mem_leaks_fp(fp)
+FILE *fp;
+        {
+        BIO *b;
+
+        if (mh == NULL) return;
+        if ((b=BIO_new(BIO_s_file())) == NULL)
+                return;
+        BIO_set_fp(b,fp,BIO_NOCLOSE);
+        CRYPTO_mem_leaks(b);
+        BIO_free(b);
+        }
+#endif
+