text: /* crypto/conf/conf.h */
  /* 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.]
   */
  
  #ifndef  HEADER_CONF_H
  # define HEADER_CONF_H
  
  # include <openssl/bio.h>
  # include <openssl/lhash.h>
  # include <openssl/stack.h>
  # include <openssl/safestack.h>
  # include <openssl/e_os2.h>
  
  # include <openssl/ossl_typ.h>
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  typedef struct {
      char *section;
      char *name;
      char *value;
  } CONF_VALUE;
  
  DECLARE_STACK_OF(CONF_VALUE)
  DECLARE_LHASH_OF(CONF_VALUE);
  
  struct conf_st;
  struct conf_method_st;
  typedef struct conf_method_st CONF_METHOD;
  
  struct conf_method_st {
      const char *name;
      CONF *(*create) (CONF_METHOD *meth);
      int (*init) (CONF *conf);
      int (*destroy) (CONF *conf);
      int (*destroy_data) (CONF *conf);
      int (*load_bio) (CONF *conf, BIO *bp, long *eline);
      int (*dump) (const CONF *conf, BIO *bp);
      int (*is_number) (const CONF *conf, char c);
      int (*to_int) (const CONF *conf, char c);
      int (*load) (CONF *conf, const char *name, long *eline);
  };
  
  /* Module definitions */
  
  typedef struct conf_imodule_st CONF_IMODULE;
  typedef struct conf_module_st CONF_MODULE;
  
  DECLARE_STACK_OF(CONF_MODULE)
  DECLARE_STACK_OF(CONF_IMODULE)
  
  /* DSO module function typedefs */
  typedef int conf_init_func (CONF_IMODULE *md, const CONF *cnf);
  typedef void conf_finish_func (CONF_IMODULE *md);
  
  # define CONF_MFLAGS_IGNORE_ERRORS       0x1
  # define CONF_MFLAGS_IGNORE_RETURN_CODES 0x2
  # define CONF_MFLAGS_SILENT              0x4
  # define CONF_MFLAGS_NO_DSO              0x8
  # define CONF_MFLAGS_IGNORE_MISSING_FILE 0x10
  # define CONF_MFLAGS_DEFAULT_SECTION     0x20
  
  int CONF_set_default_method(CONF_METHOD *meth);
  void CONF_set_nconf(CONF *conf, LHASH_OF(CONF_VALUE) *hash);
  LHASH_OF(CONF_VALUE) *CONF_load(LHASH_OF(CONF_VALUE) *conf, const char *file,
                                  long *eline);
  # ifndef OPENSSL_NO_FP_API
  LHASH_OF(CONF_VALUE) *CONF_load_fp(LHASH_OF(CONF_VALUE) *conf, FILE *fp,
                                     long *eline);
  # endif
  LHASH_OF(CONF_VALUE) *CONF_load_bio(LHASH_OF(CONF_VALUE) *conf, BIO *bp,
                                      long *eline);
  STACK_OF(CONF_VALUE) *CONF_get_section(LHASH_OF(CONF_VALUE) *conf,
                                         const char *section);
  char *CONF_get_string(LHASH_OF(CONF_VALUE) *conf, const char *group,
                        const char *name);
  long CONF_get_number(LHASH_OF(CONF_VALUE) *conf, const char *group,
                       const char *name);
  void CONF_free(LHASH_OF(CONF_VALUE) *conf);
  int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out);
  int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out);
  
  void OPENSSL_config(const char *config_name);
  void OPENSSL_no_config(void);
  
  /*
   * New conf code.  The semantics are different from the functions above. If
   * that wasn't the case, the above functions would have been replaced
   */
  
  struct conf_st {
      CONF_METHOD *meth;
      void *meth_data;
      LHASH_OF(CONF_VALUE) *data;
  };
  
  CONF *NCONF_new(CONF_METHOD *meth);
  CONF_METHOD *NCONF_default(void);
  CONF_METHOD *NCONF_WIN32(void);
  # if 0                          /* Just to give you an idea of what I have in
                                   * mind */
  CONF_METHOD *NCONF_XML(void);
  # endif
  void NCONF_free(CONF *conf);
  void NCONF_free_data(CONF *conf);
  
  int NCONF_load(CONF *conf, const char *file, long *eline);
  # ifndef OPENSSL_NO_FP_API
  int NCONF_load_fp(CONF *conf, FILE *fp, long *eline);
  # endif
  int NCONF_load_bio(CONF *conf, BIO *bp, long *eline);
  STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,
                                          const char *section);
  char *NCONF_get_string(const CONF *conf, const char *group, const char *name);
  int NCONF_get_number_e(const CONF *conf, const char *group, const char *name,
                         long *result);
  int NCONF_dump_fp(const CONF *conf, FILE *out);
  int NCONF_dump_bio(const CONF *conf, BIO *out);
  
  # if 0                          /* The following function has no error
                                   * checking, and should therefore be avoided */
  long NCONF_get_number(CONF *conf, char *group, char *name);
  # else
  #  define NCONF_get_number(c,g,n,r) NCONF_get_number_e(c,g,n,r)
  # endif
  
  /* Module functions */
  
  int CONF_modules_load(const CONF *cnf, const char *appname,
                        unsigned long flags);
  int CONF_modules_load_file(const char *filename, const char *appname,
                             unsigned long flags);
  void CONF_modules_unload(int all);
  void CONF_modules_finish(void);
  void CONF_modules_free(void);
  int CONF_module_add(const char *name, conf_init_func *ifunc,
                      conf_finish_func *ffunc);
  
  const char *CONF_imodule_get_name(const CONF_IMODULE *md);
  const char *CONF_imodule_get_value(const CONF_IMODULE *md);
  void *CONF_imodule_get_usr_data(const CONF_IMODULE *md);
  void CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data);
  CONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md);
  unsigned long CONF_imodule_get_flags(const CONF_IMODULE *md);
  void CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags);
  void *CONF_module_get_usr_data(CONF_MODULE *pmod);
  void CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data);
  
  char *CONF_get1_default_config_file(void);
  
  int CONF_parse_list(const char *list, int sep, int nospc,
                      int (*list_cb) (const char *elem, int len, void *usr),
                      void *arg);
  
  void OPENSSL_load_builtin_modules(void);
  
  /* BEGIN ERROR CODES */
  /*
   * The following lines are auto generated by the script mkerr.pl. Any changes
   * made after this point may be overwritten when the script is next run.
   */
  void ERR_load_CONF_strings(void);
  
  /* Error codes for the CONF functions. */
  
  /* Function codes. */
  # define CONF_F_CONF_DUMP_FP                              104
  # define CONF_F_CONF_LOAD                                 100
  # define CONF_F_CONF_LOAD_BIO                             102
  # define CONF_F_CONF_LOAD_FP                              103
  # define CONF_F_CONF_MODULES_LOAD                         116
  # define CONF_F_CONF_PARSE_LIST                           119
  # define CONF_F_DEF_LOAD                                  120
  # define CONF_F_DEF_LOAD_BIO                              121
  # define CONF_F_MODULE_INIT                               115
  # define CONF_F_MODULE_LOAD_DSO                           117
  # define CONF_F_MODULE_RUN                                118
  # define CONF_F_NCONF_DUMP_BIO                            105
  # define CONF_F_NCONF_DUMP_FP                             106
  # define CONF_F_NCONF_GET_NUMBER                          107
  # define CONF_F_NCONF_GET_NUMBER_E                        112
  # define CONF_F_NCONF_GET_SECTION                         108
  # define CONF_F_NCONF_GET_STRING                          109
  # define CONF_F_NCONF_LOAD                                113
  # define CONF_F_NCONF_LOAD_BIO                            110
  # define CONF_F_NCONF_LOAD_FP                             114
  # define CONF_F_NCONF_NEW                                 111
  # define CONF_F_STR_COPY                                  101
  
  /* Reason codes. */
  # define CONF_R_ERROR_LOADING_DSO                         110
  # define CONF_R_LIST_CANNOT_BE_NULL                       115
  # define CONF_R_MISSING_CLOSE_SQUARE_BRACKET              100
  # define CONF_R_MISSING_EQUAL_SIGN                        101
  # define CONF_R_MISSING_FINISH_FUNCTION                   111
  # define CONF_R_MISSING_INIT_FUNCTION                     112
  # define CONF_R_MODULE_INITIALIZATION_ERROR               109
  # define CONF_R_NO_CLOSE_BRACE                            102
  # define CONF_R_NO_CONF                                   105
  # define CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE           106
  # define CONF_R_NO_SECTION                                107
  # define CONF_R_NO_SUCH_FILE                              114
  # define CONF_R_NO_VALUE                                  108
  # define CONF_R_UNABLE_TO_CREATE_NEW_SECTION              103
  # define CONF_R_UNKNOWN_MODULE_NAME                       113
  # define CONF_R_VARIABLE_HAS_NO_VALUE                     104
  
  #ifdef  __cplusplus
  }
  #endif
  #endif
  