text: /*
   * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.
   *
   * Licensed under the Apache License 2.0 (the "License").  You may not use
   * this file except in compliance with the License.  You can obtain a copy
   * in the file LICENSE in the source distribution or at
   * https://www.openssl.org/source/license.html
   */
  
  #include <stdio.h>
  #include <time.h>
  #include <errno.h>
  
  #include "internal/cryptlib.h"
  #include <openssl/buffer.h>
  #include <openssl/x509.h>
  #include <openssl/pem.h>
  #include "x509_lcl.h"
  
  static int by_file_ctrl(X509_LOOKUP *ctx, int cmd, const char *argc,
                          long argl, char **ret);
  static X509_LOOKUP_METHOD x509_file_lookup = {
      "Load file into cache",
      NULL,                       /* new_item */
      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 = ossl_safe_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;
  
      in = BIO_new(BIO_s_file());
  
      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;
      }
      if (ret == 0)
          X509err(X509_F_X509_LOAD_CERT_FILE, X509_R_NO_CERTIFICATE_FOUND);
   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;
  
      in = BIO_new(BIO_s_file());
  
      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;
      }
      if (ret == 0)
          X509err(X509_F_X509_LOAD_CRL_FILE, X509_R_NO_CRL_FOUND);
   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, "");
      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) {
              if (!X509_STORE_add_cert(ctx->store_ctx, itmp->x509))
                  goto err;
              count++;
          }
          if (itmp->crl) {
              if (!X509_STORE_add_crl(ctx->store_ctx, itmp->crl))
                  goto err;
              count++;
          }
      }
      if (count == 0)
          X509err(X509_F_X509_LOAD_CERT_CRL_FILE,
                  X509_R_NO_CERTIFICATE_OR_CRL_FOUND);
   err:
      sk_X509_INFO_pop_free(inf, X509_INFO_free);
      return count;
  }
  