Import of SSLeay-0.9.0b with RSA and IDEA stubbed + OpenBSD build

functionality for shared libs.

Note that routines such as sslv2_init and friends that use RSA will
not work due to lack of RSA in this library.

Needs documentation and help from ports for easy upgrade to full
functionality where legally possible.

1 files changed, 489 insertions, 0 deletions

diff --git a/src/lib/libcrypto/lhash/lhash.c b/src/lib/libcrypto/lhash/lhash.c
new file mode 100644
index 0000000000..6dfb5c9ccc
--- /dev/null
+++ b/src/lib/libcrypto/lhash/lhash.c
@@ -0,0 +1,489 @@
+/* crypto/lhash/lhash.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.]
+ */
+
+char *lh_version="lhash part of SSLeay 0.9.0b 29-Jun-1998";
+
+/* Code for dynamic hash table routines
+ * Author - Eric Young v 2.0
+ *
+ * 2.0 eay - Fixed a bug that occured when using lh_delete
+ *           from inside lh_doall().  As entries were deleted,
+ *           the 'table' was 'contract()ed', making some entries
+ *           jump from the end of the table to the start, there by
+ *           skiping the lh_doall() processing. eay - 4/12/95
+ *
+ * 1.9 eay - Fixed a memory leak in lh_free, the LHASH_NODEs
+ *           were not being free()ed. 21/11/95
+ *
+ * 1.8 eay - Put the stats routines into a separate file, lh_stats.c
+ *           19/09/95
+ *
+ * 1.7 eay - Removed the fputs() for realloc failures - the code
+ *           should silently tolerate them.  I have also fixed things
+ *           lint complained about 04/05/95
+ *
+ * 1.6 eay - Fixed an invalid pointers in contract/expand 27/07/92
+ *
+ * 1.5 eay - Fixed a misuse of realloc in expand 02/03/1992
+ *
+ * 1.4 eay - Fixed lh_doall so the function can call lh_delete 28/05/91
+ *
+ * 1.3 eay - Fixed a few lint problems 19/3/1991
+ *
+ * 1.2 eay - Fixed lh_doall problem 13/3/1991
+ *
+ * 1.1 eay - Added lh_doall
+ *
+ * 1.0 eay - First version
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "lhash.h"
+
+#undef MIN_NODES 
+#define MIN_NODES       16
+#define UP_LOAD         (2*LH_LOAD_MULT) /* load times 256  (default 2) */
+#define DOWN_LOAD       (LH_LOAD_MULT)   /* load times 256  (default 1) */
+
+#ifndef NOPROTO
+
+#define P_CP    char *
+#define P_CPP   char *,char *
+static void expand(LHASH *lh);
+static void contract(LHASH *lh);
+static LHASH_NODE **getrn(LHASH *lh, char *data, unsigned long *rhash);
+
+#else
+
+#define P_CP
+#define P_CPP
+static void expand();
+static void contract();
+static LHASH_NODE **getrn();
+
+#endif
+
+LHASH *lh_new(h, c)
+unsigned long (*h)();
+int (*c)();
+        {
+        LHASH *ret;
+        int i;
+
+        if ((ret=(LHASH *)malloc(sizeof(LHASH))) == NULL)
+                goto err0;
+        if ((ret->b=(LHASH_NODE **)malloc(sizeof(LHASH_NODE *)*MIN_NODES)) == NULL)
+                goto err1;
+        for (i=0; i<MIN_NODES; i++)
+                ret->b[i]=NULL;
+        ret->comp=((c == NULL)?(int (*)())strcmp:c);
+        ret->hash=((h == NULL)?(unsigned long (*)())lh_strhash:h);
+        ret->num_nodes=MIN_NODES/2;
+        ret->num_alloc_nodes=MIN_NODES;
+        ret->p=0;
+        ret->pmax=MIN_NODES/2;
+        ret->up_load=UP_LOAD;
+        ret->down_load=DOWN_LOAD;
+        ret->num_items=0;
+
+        ret->num_expands=0;
+        ret->num_expand_reallocs=0;
+        ret->num_contracts=0;
+        ret->num_contract_reallocs=0;
+        ret->num_hash_calls=0;
+        ret->num_comp_calls=0;
+        ret->num_insert=0;
+        ret->num_replace=0;
+        ret->num_delete=0;
+        ret->num_no_delete=0;
+        ret->num_retrieve=0;
+        ret->num_retrieve_miss=0;
+        ret->num_hash_comps=0;
+
+        return(ret);
+err1:
+        free((char *)ret);
+err0:
+        return(NULL);
+        }
+
+void lh_free(lh)
+LHASH *lh;
+        {
+        unsigned int i;
+        LHASH_NODE *n,*nn;
+
+        for (i=0; i<lh->num_nodes; i++)
+                {
+                n=lh->b[i];
+                while (n != NULL)
+                        {
+                        nn=n->next;
+                        free(n);
+                        n=nn;
+                        }
+                }
+        free((char *)lh->b);
+        free((char *)lh);
+        }
+
+char *lh_insert(lh, data)
+LHASH *lh;
+char *data;
+        {
+        unsigned long hash;
+        LHASH_NODE *nn,**rn;
+        char *ret;
+
+        if (lh->up_load <= (lh->num_items*LH_LOAD_MULT/lh->num_nodes))
+                expand(lh);
+
+        rn=getrn(lh,data,&hash);
+
+        if (*rn == NULL)
+                {
+                if ((nn=(LHASH_NODE *)malloc(sizeof(LHASH_NODE))) == NULL)
+                        return(NULL);
+                nn->data=data;
+                nn->next=NULL;
+#ifndef NO_HASH_COMP
+                nn->hash=hash;
+#endif
+                *rn=nn;
+                ret=NULL;
+                lh->num_insert++;
+                lh->num_items++;
+                }
+        else /* replace same key */
+                {
+                ret= (*rn)->data;
+                (*rn)->data=data;
+                lh->num_replace++;
+                }
+        return(ret);
+        }
+
+char *lh_delete(lh, data)
+LHASH *lh;
+char *data;
+        {
+        unsigned long hash;
+        LHASH_NODE *nn,**rn;
+        char *ret;
+
+        rn=getrn(lh,data,&hash);
+
+        if (*rn == NULL)
+                {
+                lh->num_no_delete++;
+                return(NULL);
+                }
+        else
+                {
+                nn= *rn;
+                *rn=nn->next;
+                ret=nn->data;
+                free((char *)nn);
+                lh->num_delete++;
+                }
+
+        lh->num_items--;
+        if ((lh->num_nodes > MIN_NODES) &&
+                (lh->down_load >= (lh->num_items*LH_LOAD_MULT/lh->num_nodes)))
+                contract(lh);
+
+        return(ret);
+        }
+
+char *lh_retrieve(lh, data)
+LHASH *lh;
+char *data;
+        {
+        unsigned long hash;
+        LHASH_NODE **rn;
+        char *ret;
+
+        rn=getrn(lh,data,&hash);
+
+        if (*rn == NULL)
+                {
+                lh->num_retrieve_miss++;
+                return(NULL);
+                }
+        else
+                {
+                ret= (*rn)->data;
+                lh->num_retrieve++;
+                }
+        return(ret);
+        }
+
+void lh_doall(lh, func)
+LHASH *lh;
+void (*func)();
+        {
+        lh_doall_arg(lh,func,NULL);
+        }
+
+void lh_doall_arg(lh, func, arg)
+LHASH *lh;
+void (*func)();
+char *arg;
+        {
+        int i;
+        LHASH_NODE *a,*n;
+
+        /* reverse the order so we search from 'top to bottom'
+         * We were having memory leaks otherwise */
+        for (i=lh->num_nodes-1; i>=0; i--)
+                {
+                a=lh->b[i];
+                while (a != NULL)
+                        {
+                        /* 28/05/91 - eay - n added so items can be deleted
+                         * via lh_doall */
+                        n=a->next;
+                        func(a->data,arg);
+                        a=n;
+                        }
+                }
+        }
+
+static void expand(lh)
+LHASH *lh;
+        {
+        LHASH_NODE **n,**n1,**n2,*np;
+        unsigned int p,i,j;
+        unsigned long hash,nni;
+
+        lh->num_nodes++;
+        lh->num_expands++;
+        p=(int)lh->p++;
+        n1= &(lh->b[p]);
+        n2= &(lh->b[p+(int)lh->pmax]);
+        *n2=NULL;        /* 27/07/92 - eay - undefined pointer bug */
+        nni=lh->num_alloc_nodes;
+        
+        for (np= *n1; np != NULL; )
+                {
+#ifndef NO_HASH_COMP
+                hash=np->hash;
+#else
+                hash=(*(lh->hash))(np->data);
+                lh->num_hash_calls++;
+#endif
+                if ((hash%nni) != p)
+                        { /* move it */
+                        *n1= (*n1)->next;
+                        np->next= *n2;
+                        *n2=np;
+                        }
+                else
+                        n1= &((*n1)->next);
+                np= *n1;
+                }
+
+        if ((lh->p) >= lh->pmax)
+                {
+                j=(int)lh->num_alloc_nodes*2;
+                n=(LHASH_NODE **)realloc((char *)lh->b,
+                        (unsigned int)sizeof(LHASH_NODE *)*j);
+                if (n == NULL)
+                        {
+/*                      fputs("realloc error in lhash",stderr); */
+                        lh->p=0;
+                        return;
+                        }
+                /* else */
+                for (i=(int)lh->num_alloc_nodes; i<j; i++)/* 26/02/92 eay */
+                        n[i]=NULL;                        /* 02/03/92 eay */
+                lh->pmax=lh->num_alloc_nodes;
+                lh->num_alloc_nodes=j;
+                lh->num_expand_reallocs++;
+                lh->p=0;
+                lh->b=n;
+                }
+        }
+
+static void contract(lh)
+LHASH *lh;
+        {
+        LHASH_NODE **n,*n1,*np;
+
+        np=lh->b[lh->p+lh->pmax-1];
+        lh->b[lh->p+lh->pmax-1]=NULL; /* 24/07-92 - eay - weird but :-( */
+        if (lh->p == 0)
+                {
+                n=(LHASH_NODE **)realloc((char *)lh->b,
+                        (unsigned int)(sizeof(LHASH_NODE *)*lh->pmax));
+                if (n == NULL)
+                        {
+/*                      fputs("realloc error in lhash",stderr); */
+                        return;
+                        }
+                lh->num_contract_reallocs++;
+                lh->num_alloc_nodes/=2;
+                lh->pmax/=2;
+                lh->p=lh->pmax-1;
+                lh->b=n;
+                }
+        else
+                lh->p--;
+
+        lh->num_nodes--;
+        lh->num_contracts++;
+
+        n1=lh->b[(int)lh->p];
+        if (n1 == NULL)
+                lh->b[(int)lh->p]=np;
+        else
+                {
+                while (n1->next != NULL)
+                        n1=n1->next;
+                n1->next=np;
+                }
+        }
+
+static LHASH_NODE **getrn(lh, data, rhash)
+LHASH *lh;
+char *data;
+unsigned long *rhash;
+        {
+        LHASH_NODE **ret,*n1;
+        unsigned long hash,nn;
+        int (*cf)();
+
+        hash=(*(lh->hash))(data);
+        lh->num_hash_calls++;
+        *rhash=hash;
+
+        nn=hash%lh->pmax;
+        if (nn < lh->p)
+                nn=hash%lh->num_alloc_nodes;
+
+        cf=lh->comp;
+        ret= &(lh->b[(int)nn]);
+        for (n1= *ret; n1 != NULL; n1=n1->next)
+                {
+#ifndef NO_HASH_COMP
+                lh->num_hash_comps++;
+                if (n1->hash != hash)
+                        {
+                        ret= &(n1->next);
+                        continue;
+                        }
+#endif
+                lh->num_comp_calls++;
+                if ((*cf)(n1->data,data) == 0)
+                        break;
+                ret= &(n1->next);
+                }
+        return(ret);
+        }
+
+/*
+static unsigned long lh_strhash(str)
+char *str;
+        {
+        int i,l;
+        unsigned long ret=0;
+        unsigned short *s;
+
+        if (str == NULL) return(0);
+        l=(strlen(str)+1)/2;
+        s=(unsigned short *)str;
+        for (i=0; i<l; i++)
+                ret^=(s[i]<<(i&0x0f));
+        return(ret);
+        } */
+
+/* The following hash seems to work very well on normal text strings
+ * no collisions on /usr/dict/words and it distributes on %2^n quite
+ * well, not as good as MD5, but still good.
+ */
+unsigned long lh_strhash(c)
+char *c;
+        {
+        unsigned long ret=0;
+        long n;
+        unsigned long v;
+        int r;
+
+        if ((c == NULL) || (*c == '\0'))
+                return(ret);
+/*
+        unsigned char b[16];
+        MD5(c,strlen(c),b);
+        return(b[0]|(b[1]<<8)|(b[2]<<16)|(b[3]<<24)); 
+*/
+
+        n=0x100;
+        while (*c)
+                {
+                v=n|(*c);
+                n+=0x100;
+                r= (int)((v>>2)^v)&0x0f;
+                ret=(ret<<r)|(ret>>(32-r));
+                ret&=0xFFFFFFFFL;
+                ret^=v*v;
+                c++;
+                }
+        return((ret>>16)^ret);
+        }
+