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openssl/crypto/x509/by_file.c
Rich Salz 222561fe8e free NULL cleanup 5a 
Don't check for NULL before calling a free routine.  This gets X509_.*free:
    x509_name_ex_free X509_policy_tree_free X509_VERIFY_PARAM_free
    X509_STORE_free X509_STORE_CTX_free X509_PKEY_free
    X509_OBJECT_free_contents X509_LOOKUP_free X509_INFO_free

Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-04-30 17:33:59 -04:00

273 lines
9.1 KiB
C
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/* crypto/x509/by_file.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 <time.h>
#include <errno.h>
#include "cryptlib.h"
#include <openssl/lhash.h>
#include <openssl/buffer.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#ifndef OPENSSL_NO_STDIO
static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
long argl, char **ret);
X509_LOOKUP_METHOD x509_file_lookup = {
"Load file into cache",
NULL, /* new */
NULL, /* free */
NULL, /* init */
NULL, /* shutdown */
by_file_ctrl, /* ctrl */
NULL, /* get_by_subject */
NULL, /* get_by_issuer_serial */
NULL, /* get_by_fingerprint */
NULL, /* get_by_alias */
};
X509_LOOKUP_METHOD *X509_LOOKUP_file(void)
{
return (&x509_file_lookup);
}
static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp,
long argl, char **ret)
{
int ok = 0;
char *file;
switch (cmd) {
case X509_L_FILE_LOAD:
if (argl == X509_FILETYPE_DEFAULT) {
file = (char *)getenv(X509_get_default_cert_file_env());
if (file)
ok = (X509_load_cert_crl_file(ctx, file,
X509_FILETYPE_PEM) != 0);
else
ok = (X509_load_cert_crl_file
(ctx, X509_get_default_cert_file(),
X509_FILETYPE_PEM) != 0);
if (!ok) {
X509err(X509_F_BY_FILE_CTRL, X509_R_LOADING_DEFAULTS);
}
} else {
if (argl == X509_FILETYPE_PEM)
ok = (X509_load_cert_crl_file(ctx, argp,
X509_FILETYPE_PEM) != 0);
else
ok = (X509_load_cert_file(ctx, argp, (int)argl) != 0);
}
break;
}
return (ok);
}
int X509_load_cert_file(X509_LOOKUP *ctx, const char *file, int type)
{
int ret = 0;
BIO *in = NULL;
int i, count = 0;
X509 *x = NULL;
if (file == NULL)
return (1);
in = BIO_new(BIO_s_file_internal());
if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_SYS_LIB);
goto err;
}
if (type == X509_FILETYPE_PEM) {
for (;;) {
x = PEM_read_bio_X509_AUX(in, NULL, NULL, NULL);
if (x == NULL) {
if ((ERR_GET_REASON(ERR_peek_last_error()) ==
PEM_R_NO_START_LINE) && (count > 0)) {
ERR_clear_error();
break;
} else {
X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_PEM_LIB);
goto err;
}
}
i = X509_STORE_add_cert(ctx->store_ctx, x);
if (!i)
goto err;
count++;
X509_free(x);
x = NULL;
}
ret = count;
} else if (type == X509_FILETYPE_ASN1) {
x = d2i_X509_bio(in, NULL);
if (x == NULL) {
X509err(X509_F_X509_LOAD_CERT_FILE, ERR_R_ASN1_LIB);
goto err;
}
i = X509_STORE_add_cert(ctx->store_ctx, x);
if (!i)
goto err;
ret = i;
} else {
X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_BAD_X509_FILETYPE);
goto err;
}
err:
X509_free(x);
BIO_free(in);
return (ret);
}
int X509_load_crl_file(X509_LOOKUP *ctx, const char *file, int type)
{
int ret = 0;
BIO *in = NULL;
int i, count = 0;
X509_CRL *x = NULL;
if (file == NULL)
return (1);
in = BIO_new(BIO_s_file_internal());
if ((in == NULL) || (BIO_read_filename(in, file) <= 0)) {
X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_SYS_LIB);
goto err;
}
if (type == X509_FILETYPE_PEM) {
for (;;) {
x = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
if (x == NULL) {
if ((ERR_GET_REASON(ERR_peek_last_error()) ==
PEM_R_NO_START_LINE) && (count > 0)) {
ERR_clear_error();
break;
} else {
X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_PEM_LIB);
goto err;
}
}
i = X509_STORE_add_crl(ctx->store_ctx, x);
if (!i)
goto err;
count++;
X509_CRL_free(x);
x = NULL;
}
ret = count;
} else if (type == X509_FILETYPE_ASN1) {
x = d2i_X509_CRL_bio(in, NULL);
if (x == NULL) {
X509err(X509_F_X509_LOAD_CRL_FILE, ERR_R_ASN1_LIB);
goto err;
}
i = X509_STORE_add_crl(ctx->store_ctx, x);
if (!i)
goto err;
ret = i;
} else {
X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_BAD_X509_FILETYPE);
goto err;
}
err:
X509_CRL_free(x);
BIO_free(in);
return (ret);
}
int X509_load_cert_crl_file(X509_LOOKUP *ctx, const char *file, int type)
{
STACK_OF(X509_INFO) *inf;
X509_INFO *itmp;
BIO *in;
int i, count = 0;
if (type != X509_FILETYPE_PEM)
return X509_load_cert_file(ctx, file, type);
in = BIO_new_file(file, "r");
if (!in) {
X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_SYS_LIB);
return 0;
}
inf = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
BIO_free(in);
if (!inf) {
X509err(X509_F_X509_LOAD_CERT_CRL_FILE, ERR_R_PEM_LIB);
return 0;
}
for (i = 0; i < sk_X509_INFO_num(inf); i++) {
itmp = sk_X509_INFO_value(inf, i);
if (itmp->x509) {
X509_STORE_add_cert(ctx->store_ctx, itmp->x509);
count++;
}
if (itmp->crl) {
X509_STORE_add_crl(ctx->store_ctx, itmp->crl);
count++;
}
}
sk_X509_INFO_pop_free(inf, X509_INFO_free);
return count;
}
#endif /* OPENSSL_NO_STDIO */
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