ref: bae3ac29fc39bc36329abf1823004c0d79b2f6f0
dir: /sys/src/ape/lib/openssl/crypto/ocsp/ocsp_ht.c/
/* ocsp_ht.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
* project 2000.
*/
/* ====================================================================
* Copyright (c) 2000 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 <openssl/asn1.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.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 */
/* Quick and dirty HTTP OCSP request handler.
* Could make this a bit cleverer by adding
* support for non blocking BIOs and a few
* other refinements.
*/
OCSP_RESPONSE *OCSP_sendreq_bio(BIO *b, char *path, OCSP_REQUEST *req)
{
BIO *mem = NULL;
char tmpbuf[1024];
OCSP_RESPONSE *resp = NULL;
char *p, *q, *r;
int len, retcode;
static char req_txt[] =
"POST %s HTTP/1.0\r\n\
Content-Type: application/ocsp-request\r\n\
Content-Length: %d\r\n\r\n";
len = i2d_OCSP_REQUEST(req, NULL);
if(BIO_printf(b, req_txt, path, len) < 0) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_WRITE_ERROR);
goto err;
}
if(i2d_OCSP_REQUEST_bio(b, req) <= 0) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_WRITE_ERROR);
goto err;
}
if(!(mem = BIO_new(BIO_s_mem()))) goto err;
/* Copy response to a memory BIO: socket bios can't do gets! */
while ((len = BIO_read(b, tmpbuf, sizeof tmpbuf))) {
if(len < 0) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_READ_ERROR);
goto err;
}
BIO_write(mem, tmpbuf, len);
}
if(BIO_gets(mem, tmpbuf, 512) <= 0) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
goto err;
}
/* 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.
*/
/* Skip to first white space (passed protocol info) */
for(p = tmpbuf; *p && !isspace((unsigned char)*p); p++) continue;
if(!*p) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
goto err;
}
/* Skip past white space to start of response code */
while(*p && isspace((unsigned char)*p)) p++;
if(!*p) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
goto err;
}
/* 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_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_PARSE_ERROR);
goto err;
}
/* Set end of response code and start of message */
*q++ = 0;
/* Attempt to parse numeric code */
retcode = strtoul(p, &r, 10);
if(*r) goto err;
/* 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_OCSP_SENDREQ_BIO,OCSP_R_SERVER_RESPONSE_ERROR);
if(!*q) {
ERR_add_error_data(2, "Code=", p);
}
else {
ERR_add_error_data(4, "Code=", p, ",Reason=", q);
}
goto err;
}
/* Find blank line marking beginning of content */
while(BIO_gets(mem, tmpbuf, 512) > 0)
{
for(p = tmpbuf; *p && isspace((unsigned char)*p); p++) continue;
if(!*p) break;
}
if(*p) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,OCSP_R_NO_CONTENT);
goto err;
}
if(!(resp = d2i_OCSP_RESPONSE_bio(mem, NULL))) {
OCSPerr(OCSP_F_OCSP_SENDREQ_BIO,ERR_R_NESTED_ASN1_ERROR);
goto err;
}
err:
BIO_free(mem);
return resp;
}