Delete bundled copy of OpenSSL and replace with README.

openssl/crypto/ocsp/ocsp_ht.c

Index: openssl/crypto/ocsp/ocsp_ht.c
diff --git a/openssl/crypto/ocsp/ocsp_ht.c b/openssl/crypto/ocsp/ocsp_ht.c
deleted file mode 100644
index af5fc16691d432d4969126a5e64640e4a1775a14..0000000000000000000000000000000000000000
--- a/openssl/crypto/ocsp/ocsp_ht.c
+++ /dev/null
@@ -1,504 +0,0 @@
-/* ocsp_ht.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
- *
- * 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 above 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 acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- *    endorse or promote products derived from this software without
- *    prior written permission. For written permission, please contact
- *    licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- *    nor may "OpenSSL" appear in their names without prior written
- *    permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- *    acknowledgment:
- *    "This product includes software developed by the OpenSSL Project
- *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com).  This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <ctype.h>
-#include <string.h>
-#include "e_os.h"
-#include <openssl/asn1.h>
-#include <openssl/ocsp.h>
-#include <openssl/err.h>
-#include <openssl/buffer.h>
-#ifdef OPENSSL_SYS_SUNOS
-#define strtoul (unsigned long)strtol
-#endif /* OPENSSL_SYS_SUNOS */
-
-/* Stateful OCSP request code, supporting non-blocking I/O */
-
-/* Opaque OCSP request status structure */
-
-struct ocsp_req_ctx_st {
-	int state;		/* Current I/O state */
-	unsigned char *iobuf;	/* Line buffer */
-	int iobuflen;		/* Line buffer length */
-	BIO *io;		/* BIO to perform I/O with */
-	BIO *mem;		/* Memory BIO response is built into */
-	unsigned long asn1_len;	/* ASN1 length of response */
-	};
-
-#define OCSP_MAX_REQUEST_LENGTH	(100 * 1024)
-#define OCSP_MAX_LINE_LEN	4096;
-
-/* OCSP states */
-
-/* If set no reading should be performed */
-#define OHS_NOREAD		0x1000
-/* Error condition */
-#define OHS_ERROR		(0 | OHS_NOREAD)
-/* First line being read */
-#define OHS_FIRSTLINE		1
-/* MIME headers being read */
-#define OHS_HEADERS		2
-/* OCSP initial header (tag + length) being read */
-#define OHS_ASN1_HEADER		3
-/* OCSP content octets being read */
-#define OHS_ASN1_CONTENT	4
-/* Request being sent */
-#define OHS_ASN1_WRITE		(6 | OHS_NOREAD)
-/* Request being flushed */
-#define OHS_ASN1_FLUSH		(7 | OHS_NOREAD)
-/* Completed */
-#define OHS_DONE		(8 | OHS_NOREAD)
-
-
-static int parse_http_line1(char *line);
-
-void OCSP_REQ_CTX_free(OCSP_REQ_CTX *rctx)
-	{
-	if (rctx->mem)
-		BIO_free(rctx->mem);
-	if (rctx->iobuf)
-		OPENSSL_free(rctx->iobuf);
-	OPENSSL_free(rctx);
-	}
-
-int OCSP_REQ_CTX_set1_req(OCSP_REQ_CTX *rctx, OCSP_REQUEST *req)
-	{
-	static const char req_hdr[] =
-	"Content-Type: application/ocsp-request\r\n"
-	"Content-Length: %d\r\n\r\n";
-        if (BIO_printf(rctx->mem, req_hdr, i2d_OCSP_REQUEST(req, NULL)) <= 0)
-		return 0;
-        if (i2d_OCSP_REQUEST_bio(rctx->mem, req) <= 0)
-		return 0;
-	rctx->state = OHS_ASN1_WRITE;
-	rctx->asn1_len = BIO_get_mem_data(rctx->mem, NULL);
-	return 1;
-	}
-
-int OCSP_REQ_CTX_add1_header(OCSP_REQ_CTX *rctx,
-		const char *name, const char *value)
-	{
-	if (!name)
-		return 0;
-	if (BIO_puts(rctx->mem, name) <= 0)
-		return 0;
-	if (value)
-		{
-		if (BIO_write(rctx->mem, ": ", 2) != 2)
-			return 0;
-		if (BIO_puts(rctx->mem, value) <= 0)
-			return 0;
-		}
-	if (BIO_write(rctx->mem, "\r\n", 2) != 2)
-		return 0;
-	return 1;
-	}
-
-OCSP_REQ_CTX *OCSP_sendreq_new(BIO *io, char *path, OCSP_REQUEST *req,
-								int maxline)
-	{
-	static const char post_hdr[] = "POST %s HTTP/1.0\r\n";
-
-	OCSP_REQ_CTX *rctx;
-	rctx = OPENSSL_malloc(sizeof(OCSP_REQ_CTX));
-	rctx->state = OHS_ERROR;
-	rctx->mem = BIO_new(BIO_s_mem());
-	rctx->io = io;
-	rctx->asn1_len = 0;
-	if (maxline > 0)
-		rctx->iobuflen = maxline;
-	else
-		rctx->iobuflen = OCSP_MAX_LINE_LEN;
-	rctx->iobuf = OPENSSL_malloc(rctx->iobuflen);
-	if (!rctx->iobuf)
-		return 0;
-	if (!path)
-		path = "/";
-
-        if (BIO_printf(rctx->mem, post_hdr, path) <= 0)
-		return 0;
-
-	if (req && !OCSP_REQ_CTX_set1_req(rctx, req))
-		return 0;
-
-	return rctx;
-	}
-
-/* Parse the HTTP response. This will look like this:
- * "HTTP/1.0 200 OK". We need to obtain the numeric code and
- * (optional) informational message.
- */
-
-static int parse_http_line1(char *line)
-	{
-	int retcode;
-	char *p, *q, *r;
-	/* Skip to first white space (passed protocol info) */
-
-	for(p = line; *p && !isspace((unsigned char)*p); p++)
-		continue;
-	if(!*p)
-		{
-		OCSPerr(OCSP_F_PARSE_HTTP_LINE1,
-					OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
-		return 0;
-		}
-
-	/* Skip past white space to start of response code */
-	while(*p && isspace((unsigned char)*p))
-		p++;
-
-	if(!*p)
-		{
-		OCSPerr(OCSP_F_PARSE_HTTP_LINE1,
-					OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
-		return 0;
-		}
-
-	/* Find end of response code: first whitespace after start of code */
-	for(q = p; *q && !isspace((unsigned char)*q); q++)
-		continue;
-
-	if(!*q)
-		{
-		OCSPerr(OCSP_F_PARSE_HTTP_LINE1,
-					OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
-		return 0;
-		}
-
-	/* Set end of response code and start of message */ 
-	*q++ = 0;
-
-	/* Attempt to parse numeric code */
-	retcode = strtoul(p, &r, 10);
-
-	if(*r)
-		return 0;
-
-	/* Skip over any leading white space in message */
-	while(*q && isspace((unsigned char)*q))
-		q++;
-
-	if(*q)
-		{
-		/* Finally zap any trailing white space in message (include
-		 * CRLF) */
-
-		/* We know q has a non white space character so this is OK */
-		for(r = q + strlen(q) - 1; isspace((unsigned char)*r); r--)
-			*r = 0;
-		}
-	if(retcode != 200)
-		{
-		OCSPerr(OCSP_F_PARSE_HTTP_LINE1, OCSP_R_SERVER_RESPONSE_ERROR);
-		if(!*q)
-			ERR_add_error_data(2, "Code=", p);
-		else
-			ERR_add_error_data(4, "Code=", p, ",Reason=", q);
-		return 0;
-		}
-
-
-	return 1;
-
-	}
-
-int OCSP_sendreq_nbio(OCSP_RESPONSE **presp, OCSP_REQ_CTX *rctx)
-	{
-	int i, n;
-	const unsigned char *p;
-	next_io:
-	if (!(rctx->state & OHS_NOREAD))
-		{
-		n = BIO_read(rctx->io, rctx->iobuf, rctx->iobuflen);
-
-		if (n <= 0)
-			{
-			if (BIO_should_retry(rctx->io))
-				return -1;
-			return 0;
-			}
-
-		/* Write data to memory BIO */
-
-		if (BIO_write(rctx->mem, rctx->iobuf, n) != n)
-			return 0;
-		}
-
-	switch(rctx->state)
-		{
-
-		case OHS_ASN1_WRITE:
-		n = BIO_get_mem_data(rctx->mem, &p);
-
-		i = BIO_write(rctx->io,
-			p + (n - rctx->asn1_len), rctx->asn1_len);
-
-		if (i <= 0)
-			{
-			if (BIO_should_retry(rctx->io))
-				return -1;
-			rctx->state = OHS_ERROR;
-			return 0;
-			}
-
-		rctx->asn1_len -= i;
-
-		if (rctx->asn1_len > 0)
-			goto next_io;
-
-		rctx->state = OHS_ASN1_FLUSH;
-
-		(void)BIO_reset(rctx->mem);
-
-		case OHS_ASN1_FLUSH:
-
-		i = BIO_flush(rctx->io);
-
-		if (i > 0)
-			{
-			rctx->state = OHS_FIRSTLINE;
-			goto next_io;
-			}
-
-		if (BIO_should_retry(rctx->io))
-			return -1;
-
-		rctx->state = OHS_ERROR;
-		return 0;
-
-		case OHS_ERROR:
-		return 0;
-
-		case OHS_FIRSTLINE:
-		case OHS_HEADERS:
-
-		/* Attempt to read a line in */
-
-		next_line:
-		/* Due to &%^*$" memory BIO behaviour with BIO_gets we
-		 * have to check there's a complete line in there before
-		 * calling BIO_gets or we'll just get a partial read.
-		 */
-		n = BIO_get_mem_data(rctx->mem, &p);
-		if ((n <= 0) || !memchr(p, '\n', n))
-			{
-			if (n >= rctx->iobuflen)
-				{
-				rctx->state = OHS_ERROR;
-				return 0;
-				}
-			goto next_io;
-			}
-		n = BIO_gets(rctx->mem, (char *)rctx->iobuf, rctx->iobuflen);
-
-		if (n <= 0)
-			{
-			if (BIO_should_retry(rctx->mem))
-				goto next_io;
-			rctx->state = OHS_ERROR;
-			return 0;
-			}
-
-		/* Don't allow excessive lines */
-		if (n == rctx->iobuflen)
-			{
-			rctx->state = OHS_ERROR;
-			return 0;
-			}
-
-		/* First line */
-		if (rctx->state == OHS_FIRSTLINE)
-			{
-			if (parse_http_line1((char *)rctx->iobuf))
-				{
-				rctx->state = OHS_HEADERS;
-				goto next_line;
-				}
-			else
-				{
-				rctx->state = OHS_ERROR;
-				return 0;
-				}
-			}
-		else
-			{
-			/* Look for blank line: end of headers */
-			for (p = rctx->iobuf; *p; p++)
-				{
-				if ((*p != '\r') && (*p != '\n'))
-					break;
-				}
-			if (*p)
-				goto next_line;
-
-			rctx->state = OHS_ASN1_HEADER;
-
-			}
- 
-		/* Fall thru */
-
-
-		case OHS_ASN1_HEADER:
-		/* Now reading ASN1 header: can read at least 2 bytes which
-		 * is enough for ASN1 SEQUENCE header and either length field
-		 * or at least the length of the length field.
-		 */
-		n = BIO_get_mem_data(rctx->mem, &p);
-		if (n < 2)
-			goto next_io;
-
-		/* Check it is an ASN1 SEQUENCE */
-		if (*p++ != (V_ASN1_SEQUENCE|V_ASN1_CONSTRUCTED))
-			{
-			rctx->state = OHS_ERROR;
-			return 0;
-			}
-
-		/* Check out length field */
-		if (*p & 0x80)
-			{
-			/* If MSB set on initial length octet we can now
-			 * always read 6 octets: make sure we have them.
-			 */
-			if (n < 6)
-				goto next_io;
-			n = *p & 0x7F;
-			/* Not NDEF or excessive length */
-			if (!n || (n > 4))
-				{
-				rctx->state = OHS_ERROR;
-				return 0;
-				}
-			p++;
-			rctx->asn1_len = 0;
-			for (i = 0; i < n; i++)
-				{
-				rctx->asn1_len <<= 8;
-				rctx->asn1_len |= *p++;
-				}
-
-			if (rctx->asn1_len > OCSP_MAX_REQUEST_LENGTH)
-				{
-				rctx->state = OHS_ERROR;
-				return 0;
-				}
-
-			rctx->asn1_len += n + 2;
-			}
-		else
-			rctx->asn1_len = *p + 2;
-
-		rctx->state = OHS_ASN1_CONTENT;
-
-		/* Fall thru */
-		
-		case OHS_ASN1_CONTENT:
-		n = BIO_get_mem_data(rctx->mem, &p);
-		if (n < (int)rctx->asn1_len)
-			goto next_io;
-
-
-		*presp = d2i_OCSP_RESPONSE(NULL, &p, rctx->asn1_len);
-		if (*presp)
-			{
-			rctx->state = OHS_DONE;
-			return 1;
-			}
-
-		rctx->state = OHS_ERROR;
-		return 0;
-
-		break;
-
-		case OHS_DONE:
-		return 1;
-
-		}
-
-
-
-	return 0;
-
-
-	}
-
-/* Blocking OCSP request handler: now a special case of non-blocking I/O */
-
-OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, char *path, OCSP_REQUEST *req)
-	{
-	OCSP_RESPONSE *resp = NULL;
-	OCSP_REQ_CTX *ctx;
-	int rv;
-
-	ctx = OCSP_sendreq_new(b, path, req, -1);
-
-	do
-		{
-		rv = OCSP_sendreq_nbio(&resp, ctx);
-		} while ((rv == -1) && BIO_should_retry(b));
-
-	OCSP_REQ_CTX_free(ctx);
-
-	if (rv)
-		return resp;
-
-	return NULL;
-	}