Import of old SSLeay release: SSLeay 0.8.1b

1 files changed, 281 insertions, 0 deletions

diff --git a/crypto/evp/names.c b/crypto/evp/names.c
new file mode 100644
index 0000000000..49fd34f27f
--- /dev/null
+++ b/crypto/evp/names.c
@@ -0,0 +1,281 @@
+/* crypto/evp/names.c */
+/* Copyright (C) 1995-1997 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 "cryptlib.h"
+#include "evp.h"
+#include "objects.h"
+
+typedef struct aliases_st {
+	char *alias;
+	/* This must be the last field becaue I will allocate things
+	 * so they go off the end of it */
+	char name[4];
+	} ALIASES;
+
+static STACK /* ALIASES */ *aliases=NULL;
+static STACK /* EVP_CIPHERS */ *ciphers=NULL;
+static STACK /* EVP_MD */ *digests=NULL;
+
+static int cipher_nid_cmp(a,b)
+EVP_CIPHER **a,**b;
+	{ return((*a)->nid - (*b)->nid); }
+
+static int digest_type_cmp(a,b)
+EVP_MD **a,**b;
+	{ return((*a)->pkey_type - (*b)->pkey_type); }
+
+int EVP_add_cipher(c)
+EVP_CIPHER *c;
+	{
+	int i;
+
+	if (ciphers == NULL)
+		{
+		ciphers=sk_new(cipher_nid_cmp);
+		if (ciphers == NULL) return(0);
+		}
+	if ((i=sk_find(ciphers,(char *)c)) >= 0)
+		{
+		if (sk_value(ciphers,i) == (char *)c)
+			return(1);
+		sk_delete(ciphers,i);
+		}
+	return(sk_push(ciphers,(char *)c));
+	}
+
+int EVP_add_digest(md)
+EVP_MD *md;
+	{
+	int i;
+	char *n;
+
+	if (digests == NULL)
+		{
+		digests=sk_new(digest_type_cmp);
+		if (digests == NULL) return(0);
+		}
+	if ((i=sk_find(digests,(char *)md)) >= 0)
+		{
+		if (sk_value(digests,i) == (char *)md)
+			return(1);
+		sk_delete(digests,i);
+		}
+	if (md->type != md->pkey_type)
+		{
+		n=OBJ_nid2sn(md->pkey_type);
+		EVP_add_alias(n,OBJ_nid2sn(md->type));
+		EVP_add_alias(n,OBJ_nid2ln(md->type));
+		}
+	sk_push(digests,(char *)md);
+	return(1);
+	}
+
+static int alias_cmp(a,b)
+ALIASES **a,**b;
+	{
+	return(strcmp((*a)->alias,(*b)->alias));
+	}
+
+int EVP_add_alias(name,aname)
+char *name;
+char *aname;
+	{
+	int l1,l2,i;
+	ALIASES *a;
+	char *p;
+
+	if ((name == NULL) || (aname == NULL)) return(0);
+	l1=strlen(name)+1;
+	l2=strlen(aname)+1;
+	i=sizeof(ALIASES)+l1+l2;
+	if ((a=(ALIASES *)Malloc(i)) == NULL)
+		return(0);
+	strcpy(a->name,name);
+	p= &(a->name[l1]);
+	strcpy(p,aname);
+	a->alias=p;
+
+	if (aliases == NULL)
+		{
+		aliases=sk_new(alias_cmp);
+		if (aliases == NULL) goto err;
+		}
+
+	if ((i=sk_find(aliases,(char *)a)) >= 0)
+		Free(sk_delete(aliases,i));
+	if (!sk_push(aliases,(char *)a)) goto err;
+	return(1);
+err:
+	return(0);
+	}
+
+int EVP_delete_alias(name)
+char *name;
+	{
+	ALIASES a;
+	int i;
+
+	if (aliases != NULL)
+		{
+		a.alias=name;
+		if ((i=sk_find(aliases,(char *)&a)) >= 0)
+			{
+			Free(sk_delete(aliases,i));
+			return(1);
+			}
+		}
+	return(0);
+	}
+
+EVP_CIPHER *EVP_get_cipherbyname(name)
+char *name;
+	{
+	int nid,num=6,i;
+	EVP_CIPHER c,*cp;
+	ALIASES a,*ap;
+
+	if (ciphers == NULL) return(NULL);
+	for (;;)
+		{
+		if (num-- <= 0) return(NULL);
+		if (aliases != NULL)
+			{
+			a.alias=name;
+			i=sk_find(aliases,(char *)&a);
+			if (i >= 0)
+				{
+				ap=(ALIASES *)sk_value(aliases,i);
+				name=ap->name;
+				continue;
+				}
+			}
+
+		nid=OBJ_txt2nid(name);
+		c.nid=nid;
+		i=sk_find(ciphers,(char *)&c);
+		if (i >= 0)
+			{
+			cp=(EVP_CIPHER *)sk_value(ciphers,i);
+			return(cp);
+			}
+		else
+			return(NULL);
+		}
+	}
+
+EVP_MD *EVP_get_digestbyname(name)
+char *name;
+	{
+	int nid,num=6,i;
+	EVP_MD c,*cp;
+	ALIASES a,*ap;
+
+	if (digests == NULL) return(NULL);
+
+	for (;;)
+		{
+		if (num-- <= 0) return(NULL);
+
+		if (aliases != NULL)
+			{
+			a.alias=name;
+			i=sk_find(aliases,(char *)&a);
+			if (i >= 0)
+				{
+				ap=(ALIASES *)sk_value(aliases,i);
+				name=ap->name;
+				continue;
+				}
+			}
+
+		nid=OBJ_txt2nid(name);
+		c.pkey_type=nid;
+		i=sk_find(digests,(char *)&c);
+		if (i >= 0)
+			{
+			cp=(EVP_MD *)sk_value(digests,i);
+			return(cp);
+			}
+		else
+			return(NULL);
+		}
+	}
+
+void EVP_cleanup()
+	{
+	int i;
+
+	if (aliases != NULL)
+		{
+		for (i=0; i<sk_num(aliases); i++)
+			Free(sk_value(aliases,i));
+		sk_free(aliases);
+		aliases=NULL;
+		}
+	if (ciphers != NULL)
+		{
+		sk_free(ciphers);
+		ciphers=NULL;
+		}
+	if (digests != NULL)
+		{
+		sk_free(digests);
+		digests=NULL;
+		}
+	}