Initial import

1 files changed, 482 insertions, 0 deletions

diff --git a/openssl/crypto/asn1/asn1_lib.c b/openssl/crypto/asn1/asn1_lib.c
new file mode 100644
index 00000000..1bcb44ae
--- /dev/null
+++ b/openssl/crypto/asn1/asn1_lib.c
@@ -0,0 +1,482 @@
+/* crypto/asn1/asn1_lib.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 <limits.h>
+#include "cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/asn1_mac.h>
+
+static int asn1_get_length(const unsigned char **pp,int *inf,long *rl,int max);
+static void asn1_put_length(unsigned char **pp, int length);
+const char ASN1_version[]="ASN.1" OPENSSL_VERSION_PTEXT;
+
+static int _asn1_check_infinite_end(const unsigned char **p, long len)
+	{
+	/* If there is 0 or 1 byte left, the length check should pick
+	 * things up */
+	if (len <= 0)
+		return(1);
+	else if ((len >= 2) && ((*p)[0] == 0) && ((*p)[1] == 0))
+		{
+		(*p)+=2;
+		return(1);
+		}
+	return(0);
+	}
+
+int ASN1_check_infinite_end(unsigned char **p, long len)
+	{
+	return _asn1_check_infinite_end((const unsigned char **)p, len);
+	}
+
+int ASN1_const_check_infinite_end(const unsigned char **p, long len)
+	{
+	return _asn1_check_infinite_end(p, len);
+	}
+
+
+int ASN1_get_object(const unsigned char **pp, long *plength, int *ptag,
+	int *pclass, long omax)
+	{
+	int i,ret;
+	long l;
+	const unsigned char *p= *pp;
+	int tag,xclass,inf;
+	long max=omax;
+
+	if (!max) goto err;
+	ret=(*p&V_ASN1_CONSTRUCTED);
+	xclass=(*p&V_ASN1_PRIVATE);
+	i= *p&V_ASN1_PRIMITIVE_TAG;
+	if (i == V_ASN1_PRIMITIVE_TAG)
+		{		/* high-tag */
+		p++;
+		if (--max == 0) goto err;
+		l=0;
+		while (*p&0x80)
+			{
+			l<<=7L;
+			l|= *(p++)&0x7f;
+			if (--max == 0) goto err;
+			if (l > (INT_MAX >> 7L)) goto err;
+			}
+		l<<=7L;
+		l|= *(p++)&0x7f;
+		tag=(int)l;
+		if (--max == 0) goto err;
+		}
+	else
+		{ 
+		tag=i;
+		p++;
+		if (--max == 0) goto err;
+		}
+	*ptag=tag;
+	*pclass=xclass;
+	if (!asn1_get_length(&p,&inf,plength,(int)max)) goto err;
+
+#if 0
+	fprintf(stderr,"p=%d + *plength=%ld > omax=%ld + *pp=%d  (%d > %d)\n", 
+		(int)p,*plength,omax,(int)*pp,(int)(p+ *plength),
+		(int)(omax+ *pp));
+
+#endif
+	if (*plength > (omax - (p - *pp)))
+		{
+		ASN1err(ASN1_F_ASN1_GET_OBJECT,ASN1_R_TOO_LONG);
+		/* Set this so that even if things are not long enough
+		 * the values are set correctly */
+		ret|=0x80;
+		}
+	*pp=p;
+	return(ret|inf);
+err:
+	ASN1err(ASN1_F_ASN1_GET_OBJECT,ASN1_R_HEADER_TOO_LONG);
+	return(0x80);
+	}
+
+static int asn1_get_length(const unsigned char **pp, int *inf, long *rl, int max)
+	{
+	const unsigned char *p= *pp;
+	unsigned long ret=0;
+	unsigned int i;
+
+	if (max-- < 1) return(0);
+	if (*p == 0x80)
+		{
+		*inf=1;
+		ret=0;
+		p++;
+		}
+	else
+		{
+		*inf=0;
+		i= *p&0x7f;
+		if (*(p++) & 0x80)
+			{
+			if (i > sizeof(long))
+				return 0;
+			if (max-- == 0) return(0);
+			while (i-- > 0)
+				{
+				ret<<=8L;
+				ret|= *(p++);
+				if (max-- == 0) return(0);
+				}
+			}
+		else
+			ret=i;
+		}
+	if (ret > LONG_MAX)
+		return 0;
+	*pp=p;
+	*rl=(long)ret;
+	return(1);
+	}
+
+/* class 0 is constructed
+ * constructed == 2 for indefinite length constructed */
+void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
+	     int xclass)
+	{
+	unsigned char *p= *pp;
+	int i, ttag;
+
+	i=(constructed)?V_ASN1_CONSTRUCTED:0;
+	i|=(xclass&V_ASN1_PRIVATE);
+	if (tag < 31)
+		*(p++)=i|(tag&V_ASN1_PRIMITIVE_TAG);
+	else
+		{
+		*(p++)=i|V_ASN1_PRIMITIVE_TAG;
+		for(i = 0, ttag = tag; ttag > 0; i++) ttag >>=7;
+		ttag = i;
+		while(i-- > 0)
+			{
+			p[i] = tag & 0x7f;
+			if(i != (ttag - 1)) p[i] |= 0x80;
+			tag >>= 7;
+			}
+		p += ttag;
+		}
+	if (constructed == 2)
+		*(p++)=0x80;
+	else
+		asn1_put_length(&p,length);
+	*pp=p;
+	}
+
+int ASN1_put_eoc(unsigned char **pp)
+	{
+	unsigned char *p = *pp;
+	*p++ = 0;
+	*p++ = 0;
+	*pp = p;
+	return 2;
+	}
+
+static void asn1_put_length(unsigned char **pp, int length)
+	{
+	unsigned char *p= *pp;
+	int i,l;
+	if (length <= 127)
+		*(p++)=(unsigned char)length;
+	else
+		{
+		l=length;
+		for (i=0; l > 0; i++)
+			l>>=8;
+		*(p++)=i|0x80;
+		l=i;
+		while (i-- > 0)
+			{
+			p[i]=length&0xff;
+			length>>=8;
+			}
+		p+=l;
+		}
+	*pp=p;
+	}
+
+int ASN1_object_size(int constructed, int length, int tag)
+	{
+	int ret;
+
+	ret=length;
+	ret++;
+	if (tag >= 31)
+		{
+		while (tag > 0)
+			{
+			tag>>=7;
+			ret++;
+			}
+		}
+	if (constructed == 2)
+		return ret + 3;
+	ret++;
+	if (length > 127)
+		{
+		while (length > 0)
+			{
+			length>>=8;
+			ret++;
+			}
+		}
+	return(ret);
+	}
+
+static int _asn1_Finish(ASN1_const_CTX *c)
+	{
+	if ((c->inf == (1|V_ASN1_CONSTRUCTED)) && (!c->eos))
+		{
+		if (!ASN1_const_check_infinite_end(&c->p,c->slen))
+			{
+			c->error=ERR_R_MISSING_ASN1_EOS;
+			return(0);
+			}
+		}
+	if (	((c->slen != 0) && !(c->inf & 1)) ||
+		((c->slen < 0) && (c->inf & 1)))
+		{
+		c->error=ERR_R_ASN1_LENGTH_MISMATCH;
+		return(0);
+		}
+	return(1);
+	}
+
+int asn1_Finish(ASN1_CTX *c)
+	{
+	return _asn1_Finish((ASN1_const_CTX *)c);
+	}
+
+int asn1_const_Finish(ASN1_const_CTX *c)
+	{
+	return _asn1_Finish(c);
+	}
+
+int asn1_GetSequence(ASN1_const_CTX *c, long *length)
+	{
+	const unsigned char *q;
+
+	q=c->p;
+	c->inf=ASN1_get_object(&(c->p),&(c->slen),&(c->tag),&(c->xclass),
+		*length);
+	if (c->inf & 0x80)
+		{
+		c->error=ERR_R_BAD_GET_ASN1_OBJECT_CALL;
+		return(0);
+		}
+	if (c->tag != V_ASN1_SEQUENCE)
+		{
+		c->error=ERR_R_EXPECTING_AN_ASN1_SEQUENCE;
+		return(0);
+		}
+	(*length)-=(c->p-q);
+	if (c->max && (*length < 0))
+		{
+		c->error=ERR_R_ASN1_LENGTH_MISMATCH;
+		return(0);
+		}
+	if (c->inf == (1|V_ASN1_CONSTRUCTED))
+		c->slen= *length+ *(c->pp)-c->p;
+	c->eos=0;
+	return(1);
+	}
+
+int ASN1_STRING_copy(ASN1_STRING *dst, const ASN1_STRING *str)
+	{
+	if (str == NULL)
+		return 0;
+	dst->type = str->type;
+	if (!ASN1_STRING_set(dst,str->data,str->length))
+		return 0;
+	dst->flags = str->flags;
+	return 1;
+	}
+
+ASN1_STRING *ASN1_STRING_dup(const ASN1_STRING *str)
+	{
+	ASN1_STRING *ret;
+	if (!str)
+		 return NULL;
+	ret=ASN1_STRING_new();
+	if (!ret)
+		return NULL;
+	if (!ASN1_STRING_copy(ret,str))
+		{
+		ASN1_STRING_free(ret);
+		return NULL;
+		}
+	return ret;
+	}
+
+int ASN1_STRING_set(ASN1_STRING *str, const void *_data, int len)
+	{
+	unsigned char *c;
+	const char *data=_data;
+
+	if (len < 0)
+		{
+		if (data == NULL)
+			return(0);
+		else
+			len=strlen(data);
+		}
+	if ((str->length < len) || (str->data == NULL))
+		{
+		c=str->data;
+		if (c == NULL)
+			str->data=OPENSSL_malloc(len+1);
+		else
+			str->data=OPENSSL_realloc(c,len+1);
+
+		if (str->data == NULL)
+			{
+			ASN1err(ASN1_F_ASN1_STRING_SET,ERR_R_MALLOC_FAILURE);
+			str->data=c;
+			return(0);
+			}
+		}
+	str->length=len;
+	if (data != NULL)
+		{
+		memcpy(str->data,data,len);
+		/* an allowance for strings :-) */
+		str->data[len]='\0';
+		}
+	return(1);
+	}
+
+void ASN1_STRING_set0(ASN1_STRING *str, void *data, int len)
+	{
+	if (str->data)
+		OPENSSL_free(str->data);
+	str->data = data;
+	str->length = len;
+	}
+
+ASN1_STRING *ASN1_STRING_new(void)
+	{
+	return(ASN1_STRING_type_new(V_ASN1_OCTET_STRING));
+	}
+
+
+ASN1_STRING *ASN1_STRING_type_new(int type)
+	{
+	ASN1_STRING *ret;
+
+	ret=(ASN1_STRING *)OPENSSL_malloc(sizeof(ASN1_STRING));
+	if (ret == NULL)
+		{
+		ASN1err(ASN1_F_ASN1_STRING_TYPE_NEW,ERR_R_MALLOC_FAILURE);
+		return(NULL);
+		}
+	ret->length=0;
+	ret->type=type;
+	ret->data=NULL;
+	ret->flags=0;
+	return(ret);
+	}
+
+void ASN1_STRING_free(ASN1_STRING *a)
+	{
+	if (a == NULL) return;
+	if (a->data && !(a->flags & ASN1_STRING_FLAG_NDEF))
+		OPENSSL_free(a->data);
+	OPENSSL_free(a);
+	}
+
+int ASN1_STRING_cmp(const ASN1_STRING *a, const ASN1_STRING *b)
+	{
+	int i;
+
+	i=(a->length-b->length);
+	if (i == 0)
+		{
+		i=memcmp(a->data,b->data,a->length);
+		if (i == 0)
+			return(a->type-b->type);
+		else
+			return(i);
+		}
+	else
+		return(i);
+	}
+
+void asn1_add_error(const unsigned char *address, int offset)
+	{
+	char buf1[DECIMAL_SIZE(address)+1],buf2[DECIMAL_SIZE(offset)+1];
+
+	BIO_snprintf(buf1,sizeof buf1,"%lu",(unsigned long)address);
+	BIO_snprintf(buf2,sizeof buf2,"%d",offset);
+	ERR_add_error_data(4,"address=",buf1," offset=",buf2);
+	}
+
+int ASN1_STRING_length(const ASN1_STRING *x)
+{ return M_ASN1_STRING_length(x); }
+
+void ASN1_STRING_length_set(ASN1_STRING *x, int len)
+{ M_ASN1_STRING_length_set(x, len); return; }
+
+int ASN1_STRING_type(ASN1_STRING *x)
+{ return M_ASN1_STRING_type(x); }
+
+unsigned char * ASN1_STRING_data(ASN1_STRING *x)
+{ return M_ASN1_STRING_data(x); }