ref: 02dce7a2e4fd74d918cf7cd1f23fc99279365eb9
dir: /sys/src/ape/lib/openssl/ssl/ssl_rsa.c/
/* ssl/ssl_rsa.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 "ssl_locl.h"
#include <openssl/bio.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
static int ssl_set_cert(CERT *c, X509 *x509);
static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey);
int SSL_use_certificate(SSL *ssl, X509 *x)
{
if (x == NULL)
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
if (!ssl_cert_inst(&ssl->cert))
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
return(0);
}
return(ssl_set_cert(ssl->cert,x));
}
#ifndef OPENSSL_NO_STDIO
int SSL_use_certificate_file(SSL *ssl, const char *file, int type)
{
int j;
BIO *in;
int ret=0;
X509 *x=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1)
{
j=ERR_R_ASN1_LIB;
x=d2i_X509_bio(in,NULL);
}
else if (type == SSL_FILETYPE_PEM)
{
j=ERR_R_PEM_LIB;
x=PEM_read_bio_X509(in,NULL,ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
}
else
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (x == NULL)
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE_FILE,j);
goto end;
}
ret=SSL_use_certificate(ssl,x);
end:
if (x != NULL) X509_free(x);
if (in != NULL) BIO_free(in);
return(ret);
}
#endif
int SSL_use_certificate_ASN1(SSL *ssl, const unsigned char *d, int len)
{
X509 *x;
int ret;
x=d2i_X509(NULL,&d,(long)len);
if (x == NULL)
{
SSLerr(SSL_F_SSL_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
return(0);
}
ret=SSL_use_certificate(ssl,x);
X509_free(x);
return(ret);
}
#ifndef OPENSSL_NO_RSA
int SSL_use_RSAPrivateKey(SSL *ssl, RSA *rsa)
{
EVP_PKEY *pkey;
int ret;
if (rsa == NULL)
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
if (!ssl_cert_inst(&ssl->cert))
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
return(0);
}
if ((pkey=EVP_PKEY_new()) == NULL)
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
return(0);
}
RSA_up_ref(rsa);
EVP_PKEY_assign_RSA(pkey,rsa);
ret=ssl_set_pkey(ssl->cert,pkey);
EVP_PKEY_free(pkey);
return(ret);
}
#endif
static int ssl_set_pkey(CERT *c, EVP_PKEY *pkey)
{
int i;
i=ssl_cert_type(NULL,pkey);
if (i < 0)
{
SSLerr(SSL_F_SSL_SET_PKEY,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
return(0);
}
if (c->pkeys[i].x509 != NULL)
{
EVP_PKEY *pktmp;
pktmp = X509_get_pubkey(c->pkeys[i].x509);
EVP_PKEY_copy_parameters(pktmp,pkey);
EVP_PKEY_free(pktmp);
ERR_clear_error();
#ifndef OPENSSL_NO_RSA
/* Don't check the public/private key, this is mostly
* for smart cards. */
if ((pkey->type == EVP_PKEY_RSA) &&
(RSA_flags(pkey->pkey.rsa) & RSA_METHOD_FLAG_NO_CHECK))
;
else
#endif
if (!X509_check_private_key(c->pkeys[i].x509,pkey))
{
X509_free(c->pkeys[i].x509);
c->pkeys[i].x509 = NULL;
return 0;
}
}
if (c->pkeys[i].privatekey != NULL)
EVP_PKEY_free(c->pkeys[i].privatekey);
CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
c->pkeys[i].privatekey=pkey;
c->key= &(c->pkeys[i]);
c->valid=0;
return(1);
}
#ifndef OPENSSL_NO_RSA
#ifndef OPENSSL_NO_STDIO
int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type)
{
int j,ret=0;
BIO *in;
RSA *rsa=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1)
{
j=ERR_R_ASN1_LIB;
rsa=d2i_RSAPrivateKey_bio(in,NULL);
}
else if (type == SSL_FILETYPE_PEM)
{
j=ERR_R_PEM_LIB;
rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
}
else
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (rsa == NULL)
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_FILE,j);
goto end;
}
ret=SSL_use_RSAPrivateKey(ssl,rsa);
RSA_free(rsa);
end:
if (in != NULL) BIO_free(in);
return(ret);
}
#endif
int SSL_use_RSAPrivateKey_ASN1(SSL *ssl, unsigned char *d, long len)
{
int ret;
const unsigned char *p;
RSA *rsa;
p=d;
if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
{
SSLerr(SSL_F_SSL_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
return(0);
}
ret=SSL_use_RSAPrivateKey(ssl,rsa);
RSA_free(rsa);
return(ret);
}
#endif /* !OPENSSL_NO_RSA */
int SSL_use_PrivateKey(SSL *ssl, EVP_PKEY *pkey)
{
int ret;
if (pkey == NULL)
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
if (!ssl_cert_inst(&ssl->cert))
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
return(0);
}
ret=ssl_set_pkey(ssl->cert,pkey);
return(ret);
}
#ifndef OPENSSL_NO_STDIO
int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type)
{
int j,ret=0;
BIO *in;
EVP_PKEY *pkey=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_PEM)
{
j=ERR_R_PEM_LIB;
pkey=PEM_read_bio_PrivateKey(in,NULL,
ssl->ctx->default_passwd_callback,ssl->ctx->default_passwd_callback_userdata);
}
else if (type == SSL_FILETYPE_ASN1)
{
j = ERR_R_ASN1_LIB;
pkey = d2i_PrivateKey_bio(in,NULL);
}
else
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (pkey == NULL)
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY_FILE,j);
goto end;
}
ret=SSL_use_PrivateKey(ssl,pkey);
EVP_PKEY_free(pkey);
end:
if (in != NULL) BIO_free(in);
return(ret);
}
#endif
int SSL_use_PrivateKey_ASN1(int type, SSL *ssl, const unsigned char *d, long len)
{
int ret;
const unsigned char *p;
EVP_PKEY *pkey;
p=d;
if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
{
SSLerr(SSL_F_SSL_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
return(0);
}
ret=SSL_use_PrivateKey(ssl,pkey);
EVP_PKEY_free(pkey);
return(ret);
}
int SSL_CTX_use_certificate(SSL_CTX *ctx, X509 *x)
{
if (x == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
if (!ssl_cert_inst(&ctx->cert))
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE,ERR_R_MALLOC_FAILURE);
return(0);
}
return(ssl_set_cert(ctx->cert, x));
}
static int ssl_set_cert(CERT *c, X509 *x)
{
EVP_PKEY *pkey;
int i;
pkey=X509_get_pubkey(x);
if (pkey == NULL)
{
SSLerr(SSL_F_SSL_SET_CERT,SSL_R_X509_LIB);
return(0);
}
i=ssl_cert_type(x,pkey);
if (i < 0)
{
SSLerr(SSL_F_SSL_SET_CERT,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
EVP_PKEY_free(pkey);
return(0);
}
if (c->pkeys[i].privatekey != NULL)
{
EVP_PKEY_copy_parameters(pkey,c->pkeys[i].privatekey);
ERR_clear_error();
#ifndef OPENSSL_NO_RSA
/* Don't check the public/private key, this is mostly
* for smart cards. */
if ((c->pkeys[i].privatekey->type == EVP_PKEY_RSA) &&
(RSA_flags(c->pkeys[i].privatekey->pkey.rsa) &
RSA_METHOD_FLAG_NO_CHECK))
;
else
#endif /* OPENSSL_NO_RSA */
if (!X509_check_private_key(x,c->pkeys[i].privatekey))
{
/* don't fail for a cert/key mismatch, just free
* current private key (when switching to a different
* cert & key, first this function should be used,
* then ssl_set_pkey */
EVP_PKEY_free(c->pkeys[i].privatekey);
c->pkeys[i].privatekey=NULL;
/* clear error queue */
ERR_clear_error();
}
}
EVP_PKEY_free(pkey);
if (c->pkeys[i].x509 != NULL)
X509_free(c->pkeys[i].x509);
CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
c->pkeys[i].x509=x;
c->key= &(c->pkeys[i]);
c->valid=0;
return(1);
}
#ifndef OPENSSL_NO_STDIO
int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type)
{
int j;
BIO *in;
int ret=0;
X509 *x=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1)
{
j=ERR_R_ASN1_LIB;
x=d2i_X509_bio(in,NULL);
}
else if (type == SSL_FILETYPE_PEM)
{
j=ERR_R_PEM_LIB;
x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
}
else
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (x == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,j);
goto end;
}
ret=SSL_CTX_use_certificate(ctx,x);
end:
if (x != NULL) X509_free(x);
if (in != NULL) BIO_free(in);
return(ret);
}
#endif
int SSL_CTX_use_certificate_ASN1(SSL_CTX *ctx, int len, const unsigned char *d)
{
X509 *x;
int ret;
x=d2i_X509(NULL,&d,(long)len);
if (x == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_ASN1,ERR_R_ASN1_LIB);
return(0);
}
ret=SSL_CTX_use_certificate(ctx,x);
X509_free(x);
return(ret);
}
#ifndef OPENSSL_NO_RSA
int SSL_CTX_use_RSAPrivateKey(SSL_CTX *ctx, RSA *rsa)
{
int ret;
EVP_PKEY *pkey;
if (rsa == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
if (!ssl_cert_inst(&ctx->cert))
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_MALLOC_FAILURE);
return(0);
}
if ((pkey=EVP_PKEY_new()) == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY,ERR_R_EVP_LIB);
return(0);
}
RSA_up_ref(rsa);
EVP_PKEY_assign_RSA(pkey,rsa);
ret=ssl_set_pkey(ctx->cert, pkey);
EVP_PKEY_free(pkey);
return(ret);
}
#ifndef OPENSSL_NO_STDIO
int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type)
{
int j,ret=0;
BIO *in;
RSA *rsa=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_ASN1)
{
j=ERR_R_ASN1_LIB;
rsa=d2i_RSAPrivateKey_bio(in,NULL);
}
else if (type == SSL_FILETYPE_PEM)
{
j=ERR_R_PEM_LIB;
rsa=PEM_read_bio_RSAPrivateKey(in,NULL,
ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
}
else
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (rsa == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_FILE,j);
goto end;
}
ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
RSA_free(rsa);
end:
if (in != NULL) BIO_free(in);
return(ret);
}
#endif
int SSL_CTX_use_RSAPrivateKey_ASN1(SSL_CTX *ctx, const unsigned char *d, long len)
{
int ret;
const unsigned char *p;
RSA *rsa;
p=d;
if ((rsa=d2i_RSAPrivateKey(NULL,&p,(long)len)) == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_RSAPRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
return(0);
}
ret=SSL_CTX_use_RSAPrivateKey(ctx,rsa);
RSA_free(rsa);
return(ret);
}
#endif /* !OPENSSL_NO_RSA */
int SSL_CTX_use_PrivateKey(SSL_CTX *ctx, EVP_PKEY *pkey)
{
if (pkey == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_PASSED_NULL_PARAMETER);
return(0);
}
if (!ssl_cert_inst(&ctx->cert))
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY,ERR_R_MALLOC_FAILURE);
return(0);
}
return(ssl_set_pkey(ctx->cert,pkey));
}
#ifndef OPENSSL_NO_STDIO
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type)
{
int j,ret=0;
BIO *in;
EVP_PKEY *pkey=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,ERR_R_SYS_LIB);
goto end;
}
if (type == SSL_FILETYPE_PEM)
{
j=ERR_R_PEM_LIB;
pkey=PEM_read_bio_PrivateKey(in,NULL,
ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
}
else if (type == SSL_FILETYPE_ASN1)
{
j = ERR_R_ASN1_LIB;
pkey = d2i_PrivateKey_bio(in,NULL);
}
else
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,SSL_R_BAD_SSL_FILETYPE);
goto end;
}
if (pkey == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_FILE,j);
goto end;
}
ret=SSL_CTX_use_PrivateKey(ctx,pkey);
EVP_PKEY_free(pkey);
end:
if (in != NULL) BIO_free(in);
return(ret);
}
#endif
int SSL_CTX_use_PrivateKey_ASN1(int type, SSL_CTX *ctx, const unsigned char *d,
long len)
{
int ret;
const unsigned char *p;
EVP_PKEY *pkey;
p=d;
if ((pkey=d2i_PrivateKey(type,NULL,&p,(long)len)) == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_PRIVATEKEY_ASN1,ERR_R_ASN1_LIB);
return(0);
}
ret=SSL_CTX_use_PrivateKey(ctx,pkey);
EVP_PKEY_free(pkey);
return(ret);
}
#ifndef OPENSSL_NO_STDIO
/* Read a file that contains our certificate in "PEM" format,
* possibly followed by a sequence of CA certificates that should be
* sent to the peer in the Certificate message.
*/
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file)
{
BIO *in;
int ret=0;
X509 *x=NULL;
in=BIO_new(BIO_s_file_internal());
if (in == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_BUF_LIB);
goto end;
}
if (BIO_read_filename(in,file) <= 0)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_SYS_LIB);
goto end;
}
x=PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata);
if (x == NULL)
{
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_CHAIN_FILE,ERR_R_PEM_LIB);
goto end;
}
ret=SSL_CTX_use_certificate(ctx,x);
if (ERR_peek_error() != 0)
ret = 0; /* Key/certificate mismatch doesn't imply ret==0 ... */
if (ret)
{
/* If we could set up our certificate, now proceed to
* the CA certificates.
*/
X509 *ca;
int r;
unsigned long err;
if (ctx->extra_certs != NULL)
{
sk_X509_pop_free(ctx->extra_certs, X509_free);
ctx->extra_certs = NULL;
}
while ((ca = PEM_read_bio_X509(in,NULL,ctx->default_passwd_callback,ctx->default_passwd_callback_userdata))
!= NULL)
{
r = SSL_CTX_add_extra_chain_cert(ctx, ca);
if (!r)
{
X509_free(ca);
ret = 0;
goto end;
}
/* Note that we must not free r if it was successfully
* added to the chain (while we must free the main
* certificate, since its reference count is increased
* by SSL_CTX_use_certificate). */
}
/* When the while loop ends, it's usually just EOF. */
err = ERR_peek_last_error();
if (ERR_GET_LIB(err) == ERR_LIB_PEM && ERR_GET_REASON(err) == PEM_R_NO_START_LINE)
ERR_clear_error();
else
ret = 0; /* some real error */
}
end:
if (x != NULL) X509_free(x);
if (in != NULL) BIO_free(in);
return(ret);
}
#endif