/* 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;

    const char *file;

    switch (cmd) {

    case X509_L_FILE_LOAD:

        if (argl == X509_FILETYPE_DEFAULT) {

            file = 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, "");

            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:

    if (x != NULL)

        X509_free(x);

    if (in != NULL)

        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, "");

            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:

    if (x != NULL)

        X509_CRL_free(x);

    if (in != NULL)

        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, "");

    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 */