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      1 /* crypto/conf/conf.h */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) cryptsoft.com).
      7  * The implementation was written so as to conform with Netscapes SSL.
      8  *
      9  * This library is free for commercial and non-commercial use as long as
     10  * the following conditions are aheared to.  The following conditions
     11  * apply to all code found in this distribution, be it the RC4, RSA,
     12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
     13  * included with this distribution is covered by the same copyright terms
     14  * except that the holder is Tim Hudson (tjh (at) cryptsoft.com).
     15  *
     16  * Copyright remains Eric Young's, and as such any Copyright notices in
     17  * the code are not to be removed.
     18  * If this package is used in a product, Eric Young should be given attribution
     19  * as the author of the parts of the library used.
     20  * This can be in the form of a textual message at program startup or
     21  * in documentation (online or textual) provided with the package.
     22  *
     23  * Redistribution and use in source and binary forms, with or without
     24  * modification, are permitted provided that the following conditions
     25  * are met:
     26  * 1. Redistributions of source code must retain the copyright
     27  *    notice, this list of conditions and the following disclaimer.
     28  * 2. Redistributions in binary form must reproduce the above copyright
     29  *    notice, this list of conditions and the following disclaimer in the
     30  *    documentation and/or other materials provided with the distribution.
     31  * 3. All advertising materials mentioning features or use of this software
     32  *    must display the following acknowledgement:
     33  *    "This product includes cryptographic software written by
     34  *     Eric Young (eay (at) cryptsoft.com)"
     35  *    The word 'cryptographic' can be left out if the rouines from the library
     36  *    being used are not cryptographic related :-).
     37  * 4. If you include any Windows specific code (or a derivative thereof) from
     38  *    the apps directory (application code) you must include an acknowledgement:
     39  *    "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)"
     40  *
     41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
     42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     51  * SUCH DAMAGE.
     52  *
     53  * The licence and distribution terms for any publically available version or
     54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
     55  * copied and put under another distribution licence
     56  * [including the GNU Public Licence.]
     57  */
     58 
     59 #ifndef  HEADER_CONF_H
     60 #define HEADER_CONF_H
     61 
     62 #include <openssl/bio.h>
     63 #include <openssl/lhash.h>
     64 #include <openssl/stack.h>
     65 #include <openssl/safestack.h>
     66 #include <openssl/e_os2.h>
     67 
     68 #include <openssl/ossl_typ.h>
     69 
     70 #ifdef  __cplusplus
     71 extern "C" {
     72 #endif
     73 
     74 typedef struct
     75 	{
     76 	char *section;
     77 	char *name;
     78 	char *value;
     79 	} CONF_VALUE;
     80 
     81 DECLARE_STACK_OF(CONF_VALUE)
     82 DECLARE_LHASH_OF(CONF_VALUE);
     83 
     84 struct conf_st;
     85 struct conf_method_st;
     86 typedef struct conf_method_st CONF_METHOD;
     87 
     88 struct conf_method_st
     89 	{
     90 	const char *name;
     91 	CONF *(*create)(CONF_METHOD *meth);
     92 	int (*init)(CONF *conf);
     93 	int (*destroy)(CONF *conf);
     94 	int (*destroy_data)(CONF *conf);
     95 	int (*load_bio)(CONF *conf, BIO *bp, long *eline);
     96 	int (*dump)(const CONF *conf, BIO *bp);
     97 	int (*is_number)(const CONF *conf, char c);
     98 	int (*to_int)(const CONF *conf, char c);
     99 	int (*load)(CONF *conf, const char *name, long *eline);
    100 	};
    101 
    102 /* Module definitions */
    103 
    104 typedef struct conf_imodule_st CONF_IMODULE;
    105 typedef struct conf_module_st CONF_MODULE;
    106 
    107 DECLARE_STACK_OF(CONF_MODULE)
    108 DECLARE_STACK_OF(CONF_IMODULE)
    109 
    110 /* DSO module function typedefs */
    111 typedef int conf_init_func(CONF_IMODULE *md, const CONF *cnf);
    112 typedef void conf_finish_func(CONF_IMODULE *md);
    113 
    114 #define	CONF_MFLAGS_IGNORE_ERRORS	0x1
    115 #define CONF_MFLAGS_IGNORE_RETURN_CODES	0x2
    116 #define CONF_MFLAGS_SILENT		0x4
    117 #define CONF_MFLAGS_NO_DSO		0x8
    118 #define CONF_MFLAGS_IGNORE_MISSING_FILE	0x10
    119 #define CONF_MFLAGS_DEFAULT_SECTION	0x20
    120 
    121 int CONF_set_default_method(CONF_METHOD *meth);
    122 void CONF_set_nconf(CONF *conf,LHASH_OF(CONF_VALUE) *hash);
    123 LHASH_OF(CONF_VALUE) *CONF_load(LHASH_OF(CONF_VALUE) *conf,const char *file,
    124 				long *eline);
    125 #ifndef OPENSSL_NO_FP_API
    126 LHASH_OF(CONF_VALUE) *CONF_load_fp(LHASH_OF(CONF_VALUE) *conf, FILE *fp,
    127 				   long *eline);
    128 #endif
    129 LHASH_OF(CONF_VALUE) *CONF_load_bio(LHASH_OF(CONF_VALUE) *conf, BIO *bp,long *eline);
    130 STACK_OF(CONF_VALUE) *CONF_get_section(LHASH_OF(CONF_VALUE) *conf,
    131 				       const char *section);
    132 char *CONF_get_string(LHASH_OF(CONF_VALUE) *conf,const char *group,
    133 		      const char *name);
    134 long CONF_get_number(LHASH_OF(CONF_VALUE) *conf,const char *group,
    135 		     const char *name);
    136 void CONF_free(LHASH_OF(CONF_VALUE) *conf);
    137 int CONF_dump_fp(LHASH_OF(CONF_VALUE) *conf, FILE *out);
    138 int CONF_dump_bio(LHASH_OF(CONF_VALUE) *conf, BIO *out);
    139 
    140 void OPENSSL_config(const char *config_name);
    141 void OPENSSL_no_config(void);
    142 
    143 /* New conf code.  The semantics are different from the functions above.
    144    If that wasn't the case, the above functions would have been replaced */
    145 
    146 struct conf_st
    147 	{
    148 	CONF_METHOD *meth;
    149 	void *meth_data;
    150 	LHASH_OF(CONF_VALUE) *data;
    151 	};
    152 
    153 CONF *NCONF_new(CONF_METHOD *meth);
    154 CONF_METHOD *NCONF_default(void);
    155 CONF_METHOD *NCONF_WIN32(void);
    156 #if 0 /* Just to give you an idea of what I have in mind */
    157 CONF_METHOD *NCONF_XML(void);
    158 #endif
    159 void NCONF_free(CONF *conf);
    160 void NCONF_free_data(CONF *conf);
    161 
    162 int NCONF_load(CONF *conf,const char *file,long *eline);
    163 #ifndef OPENSSL_NO_FP_API
    164 int NCONF_load_fp(CONF *conf, FILE *fp,long *eline);
    165 #endif
    166 int NCONF_load_bio(CONF *conf, BIO *bp,long *eline);
    167 STACK_OF(CONF_VALUE) *NCONF_get_section(const CONF *conf,const char *section);
    168 char *NCONF_get_string(const CONF *conf,const char *group,const char *name);
    169 int NCONF_get_number_e(const CONF *conf,const char *group,const char *name,
    170 		       long *result);
    171 int NCONF_dump_fp(const CONF *conf, FILE *out);
    172 int NCONF_dump_bio(const CONF *conf, BIO *out);
    173 
    174 #if 0 /* The following function has no error checking,
    175 	 and should therefore be avoided */
    176 long NCONF_get_number(CONF *conf,char *group,char *name);
    177 #else
    178 #define NCONF_get_number(c,g,n,r) NCONF_get_number_e(c,g,n,r)
    179 #endif
    180 
    181 /* Module functions */
    182 
    183 int CONF_modules_load(const CONF *cnf, const char *appname,
    184 		      unsigned long flags);
    185 int CONF_modules_load_file(const char *filename, const char *appname,
    186 			   unsigned long flags);
    187 void CONF_modules_unload(int all);
    188 void CONF_modules_finish(void);
    189 void CONF_modules_free(void);
    190 int CONF_module_add(const char *name, conf_init_func *ifunc,
    191 		    conf_finish_func *ffunc);
    192 
    193 const char *CONF_imodule_get_name(const CONF_IMODULE *md);
    194 const char *CONF_imodule_get_value(const CONF_IMODULE *md);
    195 void *CONF_imodule_get_usr_data(const CONF_IMODULE *md);
    196 void CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data);
    197 CONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md);
    198 unsigned long CONF_imodule_get_flags(const CONF_IMODULE *md);
    199 void CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags);
    200 void *CONF_module_get_usr_data(CONF_MODULE *pmod);
    201 void CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data);
    202 
    203 char *CONF_get1_default_config_file(void);
    204 
    205 int CONF_parse_list(const char *list, int sep, int nospc,
    206 	int (*list_cb)(const char *elem, int len, void *usr), void *arg);
    207 
    208 void OPENSSL_load_builtin_modules(void);
    209 
    210 /* BEGIN ERROR CODES */
    211 /* The following lines are auto generated by the script mkerr.pl. Any changes
    212  * made after this point may be overwritten when the script is next run.
    213  */
    214 void ERR_load_CONF_strings(void);
    215 
    216 /* Error codes for the CONF functions. */
    217 
    218 /* Function codes. */
    219 #define CONF_F_CONF_DUMP_FP				 104
    220 #define CONF_F_CONF_LOAD				 100
    221 #define CONF_F_CONF_LOAD_BIO				 102
    222 #define CONF_F_CONF_LOAD_FP				 103
    223 #define CONF_F_CONF_MODULES_LOAD			 116
    224 #define CONF_F_CONF_PARSE_LIST				 119
    225 #define CONF_F_DEF_LOAD					 120
    226 #define CONF_F_DEF_LOAD_BIO				 121
    227 #define CONF_F_MODULE_INIT				 115
    228 #define CONF_F_MODULE_LOAD_DSO				 117
    229 #define CONF_F_MODULE_RUN				 118
    230 #define CONF_F_NCONF_DUMP_BIO				 105
    231 #define CONF_F_NCONF_DUMP_FP				 106
    232 #define CONF_F_NCONF_GET_NUMBER				 107
    233 #define CONF_F_NCONF_GET_NUMBER_E			 112
    234 #define CONF_F_NCONF_GET_SECTION			 108
    235 #define CONF_F_NCONF_GET_STRING				 109
    236 #define CONF_F_NCONF_LOAD				 113
    237 #define CONF_F_NCONF_LOAD_BIO				 110
    238 #define CONF_F_NCONF_LOAD_FP				 114
    239 #define CONF_F_NCONF_NEW				 111
    240 #define CONF_F_STR_COPY					 101
    241 
    242 /* Reason codes. */
    243 #define CONF_R_ERROR_LOADING_DSO			 110
    244 #define CONF_R_LIST_CANNOT_BE_NULL			 115
    245 #define CONF_R_MISSING_CLOSE_SQUARE_BRACKET		 100
    246 #define CONF_R_MISSING_EQUAL_SIGN			 101
    247 #define CONF_R_MISSING_FINISH_FUNCTION			 111
    248 #define CONF_R_MISSING_INIT_FUNCTION			 112
    249 #define CONF_R_MODULE_INITIALIZATION_ERROR		 109
    250 #define CONF_R_NO_CLOSE_BRACE				 102
    251 #define CONF_R_NO_CONF					 105
    252 #define CONF_R_NO_CONF_OR_ENVIRONMENT_VARIABLE		 106
    253 #define CONF_R_NO_SECTION				 107
    254 #define CONF_R_NO_SUCH_FILE				 114
    255 #define CONF_R_NO_VALUE					 108
    256 #define CONF_R_UNABLE_TO_CREATE_NEW_SECTION		 103
    257 #define CONF_R_UNKNOWN_MODULE_NAME			 113
    258 #define CONF_R_VARIABLE_HAS_NO_VALUE			 104
    259 
    260 #ifdef  __cplusplus
    261 }
    262 #endif
    263 #endif
    264