Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/pkcs7/bio_ber.c

Index: openssl/crypto/pkcs7/bio_ber.c
diff --git a/openssl/crypto/pkcs7/bio_ber.c b/openssl/crypto/pkcs7/bio_ber.c
deleted file mode 100644
index 31973fcd1fc56ae463ca9f46da598ca9e7b70e02..0000000000000000000000000000000000000000
--- a/openssl/crypto/pkcs7/bio_ber.c
+++ /dev/null
@@ -1,466 +0,0 @@
-/* crypto/evp/bio_ber.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 <errno.h>
-#include "cryptlib.h"
-#include <openssl/buffer.h>
-#include <openssl/evp.h>
-
-static int ber_write(BIO *h,char *buf,int num);
-static int ber_read(BIO *h,char *buf,int size);
-/*static int ber_puts(BIO *h,char *str); */
-/*static int ber_gets(BIO *h,char *str,int size); */
-static long ber_ctrl(BIO *h,int cmd,long arg1,char *arg2);
-static int ber_new(BIO *h);
-static int ber_free(BIO *data);
-static long ber_callback_ctrl(BIO *h,int cmd,void *(*fp)());
-#define BER_BUF_SIZE	(32)
-
-/* This is used to hold the state of the BER objects being read. */
-typedef struct ber_struct
-	{
-	int tag;
-	int class;
-	long length;
-	int inf;
-	int num_left;
-	int depth;
-	} BER_CTX;
-
-typedef struct bio_ber_struct
-	{
-	int tag;
-	int class;
-	long length;
-	int inf;
-
-	/* most of the following are used when doing non-blocking IO */
-	/* reading */
-	long num_left;	/* number of bytes still to read/write in block */
-	int depth;	/* used with indefinite encoding. */
-	int finished;	/* No more read data */
-
-	/* writting */ 
-	char *w_addr;
-	int w_offset;
-	int w_left;
-
-	int buf_len;
-	int buf_off;
-	unsigned char buf[BER_BUF_SIZE];
-	} BIO_BER_CTX;
-
-static BIO_METHOD methods_ber=
-	{
-	BIO_TYPE_CIPHER,"cipher",
-	ber_write,
-	ber_read,
-	NULL, /* ber_puts, */
-	NULL, /* ber_gets, */
-	ber_ctrl,
-	ber_new,
-	ber_free,
-	ber_callback_ctrl,
-	};
-
-BIO_METHOD *BIO_f_ber(void)
-	{
-	return(&methods_ber);
-	}
-
-static int ber_new(BIO *bi)
-	{
-	BIO_BER_CTX *ctx;
-
-	ctx=(BIO_BER_CTX *)OPENSSL_malloc(sizeof(BIO_BER_CTX));
-	if (ctx == NULL) return(0);
-
-	memset((char *)ctx,0,sizeof(BIO_BER_CTX));
-
-	bi->init=0;
-	bi->ptr=(char *)ctx;
-	bi->flags=0;
-	return(1);
-	}
-
-static int ber_free(BIO *a)
-	{
-	BIO_BER_CTX *b;
-
-	if (a == NULL) return(0);
-	b=(BIO_BER_CTX *)a->ptr;
-	OPENSSL_cleanse(a->ptr,sizeof(BIO_BER_CTX));
-	OPENSSL_free(a->ptr);
-	a->ptr=NULL;
-	a->init=0;
-	a->flags=0;
-	return(1);
-	}
-
-int bio_ber_get_header(BIO *bio, BIO_BER_CTX *ctx)
-	{
-	char buf[64];
-	int i,j,n;
-	int ret;
-	unsigned char *p;
-	unsigned long length
-	int tag;
-	int class;
-	long max;
-
-	BIO_clear_retry_flags(b);
-
-	/* Pack the buffer down if there is a hole at the front */
-	if (ctx->buf_off != 0)
-		{
-		p=ctx->buf;
-		j=ctx->buf_off;
-		n=ctx->buf_len-j;
-		for (i=0; i<n; i++)
-			{
-			p[0]=p[j];
-			p++;
-			}
-		ctx->buf_len-j;
-		ctx->buf_off=0;
-		}
-
-	/* If there is more room, read some more data */
-	i=BER_BUF_SIZE-ctx->buf_len;
-	if (i)
-		{
-		i=BIO_read(bio->next_bio,&(ctx->buf[ctx->buf_len]),i);
-		if (i <= 0)
-			{
-			BIO_copy_next_retry(b);
-			return(i);
-			}
-		else
-			ctx->buf_len+=i;
-		}
-
-	max=ctx->buf_len;
-	p=ctx->buf;
-	ret=ASN1_get_object(&p,&length,&tag,&class,max);
-
-	if (ret & 0x80)
-		{
-		if ((ctx->buf_len < BER_BUF_SIZE) &&
-			(ERR_GET_REASON(ERR_peek_error()) == ASN1_R_TOO_LONG))
-			{
-			ERR_clear_error(); /* clear the error */
-			BIO_set_retry_read(b);
-			}
-		return(-1);
-		}
-
-	/* We have no error, we have a header, so make use of it */
-
-	if ((ctx->tag  >= 0) && (ctx->tag != tag))
-		{
-		BIOerr(BIO_F_BIO_BER_GET_HEADER,BIO_R_TAG_MISMATCH);
-		sprintf(buf,"tag=%d, got %d",ctx->tag,tag);
-		ERR_add_error_data(1,buf);
-		return(-1);
-		}
-	if (ret & 0x01)
-	if (ret & V_ASN1_CONSTRUCTED)
-	}
-	
-static int ber_read(BIO *b, char *out, int outl)
-	{
-	int ret=0,i,n;
-	BIO_BER_CTX *ctx;
-
-	BIO_clear_retry_flags(b);
-
-	if (out == NULL) return(0);
-	ctx=(BIO_BER_CTX *)b->ptr;
-
-	if ((ctx == NULL) || (b->next_bio == NULL)) return(0);
-
-	if (ctx->finished) return(0);
-
-again:
-	/* First see if we are half way through reading a block */
-	if (ctx->num_left > 0)
-		{
-		if (ctx->num_left < outl)
-			n=ctx->num_left;
-		else
-			n=outl;
-		i=BIO_read(b->next_bio,out,n);
-		if (i <= 0)
-			{
-			BIO_copy_next_retry(b);
-			return(i);
-			}
-		ctx->num_left-=i;
-		outl-=i;
-		ret+=i;
-		if (ctx->num_left <= 0)
-			{
-			ctx->depth--;
-			if (ctx->depth <= 0)
-				ctx->finished=1;
-			}
-		if (outl <= 0)
-			return(ret);
-		else
-			goto again;
-		}
-	else	/* we need to read another BER header */
-		{
-		}
-	}
-
-static int ber_write(BIO *b, char *in, int inl)
-	{
-	int ret=0,n,i;
-	BIO_ENC_CTX *ctx;
-
-	ctx=(BIO_ENC_CTX *)b->ptr;
-	ret=inl;
-
-	BIO_clear_retry_flags(b);
-	n=ctx->buf_len-ctx->buf_off;
-	while (n > 0)
-		{
-		i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n);
-		if (i <= 0)
-			{
-			BIO_copy_next_retry(b);
-			return(i);
-			}
-		ctx->buf_off+=i;
-		n-=i;
-		}
-	/* at this point all pending data has been written */
-
-	if ((in == NULL) || (inl <= 0)) return(0);
-
-	ctx->buf_off=0;
-	while (inl > 0)
-		{
-		n=(inl > ENC_BLOCK_SIZE)?ENC_BLOCK_SIZE:inl;
-		EVP_CipherUpdate(&(ctx->cipher),
-			(unsigned char *)ctx->buf,&ctx->buf_len,
-			(unsigned char *)in,n);
-		inl-=n;
-		in+=n;
-
-		ctx->buf_off=0;
-		n=ctx->buf_len;
-		while (n > 0)
-			{
-			i=BIO_write(b->next_bio,&(ctx->buf[ctx->buf_off]),n);
-			if (i <= 0)
-				{
-				BIO_copy_next_retry(b);
-				return(i);
-				}
-			n-=i;
-			ctx->buf_off+=i;
-			}
-		ctx->buf_len=0;
-		ctx->buf_off=0;
-		}
-	BIO_copy_next_retry(b);
-	return(ret);
-	}
-
-static long ber_ctrl(BIO *b, int cmd, long num, char *ptr)
-	{
-	BIO *dbio;
-	BIO_ENC_CTX *ctx,*dctx;
-	long ret=1;
-	int i;
-
-	ctx=(BIO_ENC_CTX *)b->ptr;
-
-	switch (cmd)
-		{
-	case BIO_CTRL_RESET:
-		ctx->ok=1;
-		ctx->finished=0;
-		EVP_CipherInit_ex(&(ctx->cipher),NULL,NULL,NULL,NULL,
-			ctx->cipher.berrypt);
-		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-	case BIO_CTRL_EOF:	/* More to read */
-		if (ctx->cont <= 0)
-			ret=1;
-		else
-			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-	case BIO_CTRL_WPENDING:
-		ret=ctx->buf_len-ctx->buf_off;
-		if (ret <= 0)
-			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-	case BIO_CTRL_PENDING: /* More to read in buffer */
-		ret=ctx->buf_len-ctx->buf_off;
-		if (ret <= 0)
-			ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-	case BIO_CTRL_FLUSH:
-		/* do a final write */
-again:
-		while (ctx->buf_len != ctx->buf_off)
-			{
-			i=ber_write(b,NULL,0);
-			if (i < 0)
-				{
-				ret=i;
-				break;
-				}
-			}
-
-		if (!ctx->finished)
-			{
-			ctx->finished=1;
-			ctx->buf_off=0;
-			ret=EVP_CipherFinal_ex(&(ctx->cipher),
-				(unsigned char *)ctx->buf,
-				&(ctx->buf_len));
-			ctx->ok=(int)ret;
-			if (ret <= 0) break;
-
-			/* push out the bytes */
-			goto again;
-			}
-		
-		/* Finally flush the underlying BIO */
-		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-	case BIO_C_GET_CIPHER_STATUS:
-		ret=(long)ctx->ok;
-		break;
-	case BIO_C_DO_STATE_MACHINE:
-		BIO_clear_retry_flags(b);
-		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		BIO_copy_next_retry(b);
-		break;
-
-	case BIO_CTRL_DUP:
-		dbio=(BIO *)ptr;
-		dctx=(BIO_ENC_CTX *)dbio->ptr;
-		memcpy(&(dctx->cipher),&(ctx->cipher),sizeof(ctx->cipher));
-		dbio->init=1;
-		break;
-	default:
-		ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
-		break;
-		}
-	return(ret);
-	}
-
-static long ber_callback_ctrl(BIO *b, int cmd, void *(*fp)())
-	{
-	long ret=1;
-
-	if (b->next_bio == NULL) return(0);
-	switch (cmd)
-		{
-	default:
-		ret=BIO_callback_ctrl(b->next_bio,cmd,fp);
-		break;
-		}
-	return(ret);
-	}
-
-/*
-void BIO_set_cipher_ctx(b,c)
-BIO *b;
-EVP_CIPHER_ctx *c;
-	{
-	if (b == NULL) return;
-
-	if ((b->callback != NULL) &&
-		(b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,0L) <= 0))
-		return;
-
-	b->init=1;
-	ctx=(BIO_ENC_CTX *)b->ptr;
-	memcpy(ctx->cipher,c,sizeof(EVP_CIPHER_CTX));
-	
-	if (b->callback != NULL)
-		b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,1L);
-	}
-*/
-
-void BIO_set_cipher(BIO *b, EVP_CIPHER *c, unsigned char *k, unsigned char *i,
-	     int e)
-	{
-	BIO_ENC_CTX *ctx;
-
-	if (b == NULL) return;
-
-	if ((b->callback != NULL) &&
-		(b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,0L) <= 0))
-		return;
-
-	b->init=1;
-	ctx=(BIO_ENC_CTX *)b->ptr;
-	EVP_CipherInit_ex(&(ctx->cipher),c,NULL,k,i,e);
-	
-	if (b->callback != NULL)
-		b->callback(b,BIO_CB_CTRL,(char *)c,BIO_CTRL_SET,e,1L);
-	}
-