/*
 * {- join("\n * ", @autowarntext) -}
 *
 * Copyright 1995-2021 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
 */

/* clang-format off */
{-
use OpenSSL::stackhash qw(generate_stack_macros generate_lhash_macros);
-}
/* clang-format on */

#ifndef OPENSSL_CONF_H
#define OPENSSL_CONF_H
#pragma once

#include <openssl/macros.h>
#ifndef OPENSSL_NO_DEPRECATED_3_0
#define HEADER_CONF_H
#endif

#include <openssl/bio.h>
#include <openssl/lhash.h>
#include <openssl/safestack.h>
#include <openssl/e_os2.h>
#include <openssl/types.h>
#include <openssl/conferr.h>
#ifndef OPENSSL_NO_STDIO
#include <stdio.h>
#endif

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    char *section;
    char *name;
    char *value;
} CONF_VALUE;

/* clang-format off */
{-
    generate_stack_macros("CONF_VALUE")
    .generate_lhash_macros("CONF_VALUE");
-}
/* clang-format on */

struct conf_st;
struct conf_method_st;
typedef struct conf_method_st CONF_METHOD;

#ifndef OPENSSL_NO_DEPRECATED_3_0
#include <openssl/conftypes.h>
#endif

/* Module definitions */
typedef struct conf_imodule_st CONF_IMODULE;
typedef struct conf_module_st CONF_MODULE;

STACK_OF(CONF_MODULE);
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_STDIO
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);
#ifndef OPENSSL_NO_STDIO
int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out);
#endif
int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out);
#ifndef OPENSSL_NO_DEPRECATED_1_1_0
OSSL_DEPRECATEDIN_1_1_0 void OPENSSL_config(const char *config_name);
#endif

#ifndef OPENSSL_NO_DEPRECATED_1_1_0
#define OPENSSL_no_config() \
    OPENSSL_init_crypto(OPENSSL_INIT_NO_LOAD_CONFIG, NULL)
#endif

/*
 * New conf code.  The semantics are different from the functions above. If
 * that wasn't the case, the above functions would have been replaced
 */

CONF *NCONF_new_ex(OSSL_LIB_CTX *libctx, CONF_METHOD *meth);
OSSL_LIB_CTX *NCONF_get0_libctx(const CONF *conf);
CONF *NCONF_new(CONF_METHOD *meth);
CONF_METHOD *NCONF_default(void);
#ifndef OPENSSL_NO_DEPRECATED_3_0
OSSL_DEPRECATEDIN_3_0 CONF_METHOD *NCONF_WIN32(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_STDIO
int NCONF_load_fp(CONF *conf, FILE *fp, long *eline);
#endif
int NCONF_load_bio(CONF *conf, BIO *bp, long *eline);
STACK_OF(OPENSSL_CSTRING) *NCONF_get_section_names(const CONF *conf);
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);
#ifndef OPENSSL_NO_STDIO
int NCONF_dump_fp(const CONF *conf, FILE *out);
#endif
int NCONF_dump_bio(const CONF *conf, BIO *out);

#define NCONF_get_number(c, g, n, r) NCONF_get_number_e(c, g, n, r)

/* Module functions */

int CONF_modules_load(const CONF *cnf, const char *appname,
    unsigned long flags);
int CONF_modules_load_file_ex(OSSL_LIB_CTX *libctx, const char *filename,
    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);
#ifndef OPENSSL_NO_DEPRECATED_1_1_0
#define CONF_modules_free() \
    while (0)               \
    continue
#endif
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);

#ifdef __cplusplus
}
#endif
#endif
