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Editing: lhash.h
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/* * Copyright 1995-2024 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 */ /* clang-format on */ /* * Header for dynamic hash table routines Author - Eric Young */ #ifndef OPENSSL_LHASH_H #define OPENSSL_LHASH_H #pragma once #include <openssl/macros.h> #ifndef OPENSSL_NO_DEPRECATED_3_0 #define HEADER_LHASH_H #endif #include <openssl/e_os2.h> #include <openssl/bio.h> #ifndef OPENSSL_NO_STDIO #include <stdio.h> #endif #ifdef __cplusplus extern "C" { #endif typedef struct lhash_node_st OPENSSL_LH_NODE; typedef int (*OPENSSL_LH_COMPFUNC)(const void *, const void *); typedef int (*OPENSSL_LH_COMPFUNCTHUNK)(const void *, const void *, OPENSSL_LH_COMPFUNC cfn); typedef unsigned long (*OPENSSL_LH_HASHFUNC)(const void *); typedef unsigned long (*OPENSSL_LH_HASHFUNCTHUNK)(const void *, OPENSSL_LH_HASHFUNC hfn); typedef void (*OPENSSL_LH_DOALL_FUNC)(void *); typedef void (*OPENSSL_LH_DOALL_FUNC_THUNK)(void *, OPENSSL_LH_DOALL_FUNC doall); typedef void (*OPENSSL_LH_DOALL_FUNCARG)(void *, void *); typedef void (*OPENSSL_LH_DOALL_FUNCARG_THUNK)(void *, void *, OPENSSL_LH_DOALL_FUNCARG doall); typedef struct lhash_st OPENSSL_LHASH; /* * Macros for declaring and implementing type-safe wrappers for LHASH * callbacks. This way, callbacks can be provided to LHASH structures without * function pointer casting and the macro-defined callbacks provide * per-variable casting before deferring to the underlying type-specific * callbacks. NB: It is possible to place a "static" in front of both the * DECLARE and IMPLEMENT macros if the functions are strictly internal. */ /* First: "hash" functions */ #define DECLARE_LHASH_HASH_FN(name, o_type) \ unsigned long name##_LHASH_HASH(const void *); #define IMPLEMENT_LHASH_HASH_FN(name, o_type) \ unsigned long name##_LHASH_HASH(const void *arg) \ { \ const o_type *a = arg; \ return name##_hash(a); \ } #define LHASH_HASH_FN(name) name##_LHASH_HASH /* Second: "compare" functions */ #define DECLARE_LHASH_COMP_FN(name, o_type) \ int name##_LHASH_COMP(const void *, const void *); #define IMPLEMENT_LHASH_COMP_FN(name, o_type) \ int name##_LHASH_COMP(const void *arg1, const void *arg2) \ { \ const o_type *a = arg1; \ const o_type *b = arg2; \ return name##_cmp(a, b); \ } #define LHASH_COMP_FN(name) name##_LHASH_COMP /* Fourth: "doall_arg" functions */ #define DECLARE_LHASH_DOALL_ARG_FN(name, o_type, a_type) \ void name##_LHASH_DOALL_ARG(void *, void *); #define IMPLEMENT_LHASH_DOALL_ARG_FN(name, o_type, a_type) \ void name##_LHASH_DOALL_ARG(void *arg1, void *arg2) \ { \ o_type *a = arg1; \ a_type *b = arg2; \ name##_doall_arg(a, b); \ } #define LHASH_DOALL_ARG_FN(name) name##_LHASH_DOALL_ARG #define LH_LOAD_MULT 256 int OPENSSL_LH_error(OPENSSL_LHASH *lh); OPENSSL_LHASH *OPENSSL_LH_new(OPENSSL_LH_HASHFUNC h, OPENSSL_LH_COMPFUNC c); OPENSSL_LHASH *OPENSSL_LH_set_thunks(OPENSSL_LHASH *lh, OPENSSL_LH_HASHFUNCTHUNK hw, OPENSSL_LH_COMPFUNCTHUNK cw, OPENSSL_LH_DOALL_FUNC_THUNK daw, OPENSSL_LH_DOALL_FUNCARG_THUNK daaw); void OPENSSL_LH_free(OPENSSL_LHASH *lh); void OPENSSL_LH_flush(OPENSSL_LHASH *lh); void *OPENSSL_LH_insert(OPENSSL_LHASH *lh, void *data); void *OPENSSL_LH_delete(OPENSSL_LHASH *lh, const void *data); void *OPENSSL_LH_retrieve(OPENSSL_LHASH *lh, const void *data); void OPENSSL_LH_doall(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNC func); void OPENSSL_LH_doall_arg(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG func, void *arg); void OPENSSL_LH_doall_arg_thunk(OPENSSL_LHASH *lh, OPENSSL_LH_DOALL_FUNCARG_THUNK daaw, OPENSSL_LH_DOALL_FUNCARG fn, void *arg); unsigned long OPENSSL_LH_strhash(const char *c); unsigned long OPENSSL_LH_num_items(const OPENSSL_LHASH *lh); unsigned long OPENSSL_LH_get_down_load(const OPENSSL_LHASH *lh); void OPENSSL_LH_set_down_load(OPENSSL_LHASH *lh, unsigned long down_load); #ifndef OPENSSL_NO_STDIO #ifndef OPENSSL_NO_DEPRECATED_3_1 OSSL_DEPRECATEDIN_3_1 void OPENSSL_LH_stats(const OPENSSL_LHASH *lh, FILE *fp); OSSL_DEPRECATEDIN_3_1 void OPENSSL_LH_node_stats(const OPENSSL_LHASH *lh, FILE *fp); OSSL_DEPRECATEDIN_3_1 void OPENSSL_LH_node_usage_stats(const OPENSSL_LHASH *lh, FILE *fp); #endif #endif #ifndef OPENSSL_NO_DEPRECATED_3_1 OSSL_DEPRECATEDIN_3_1 void OPENSSL_LH_stats_bio(const OPENSSL_LHASH *lh, BIO *out); OSSL_DEPRECATEDIN_3_1 void OPENSSL_LH_node_stats_bio(const OPENSSL_LHASH *lh, BIO *out); OSSL_DEPRECATEDIN_3_1 void OPENSSL_LH_node_usage_stats_bio(const OPENSSL_LHASH *lh, BIO *out); #endif #ifndef OPENSSL_NO_DEPRECATED_1_1_0 #define _LHASH OPENSSL_LHASH #define LHASH_NODE OPENSSL_LH_NODE #define lh_error OPENSSL_LH_error #define lh_new OPENSSL_LH_new #define lh_free OPENSSL_LH_free #define lh_insert OPENSSL_LH_insert #define lh_delete OPENSSL_LH_delete #define lh_retrieve OPENSSL_LH_retrieve #define lh_doall OPENSSL_LH_doall #define lh_doall_arg OPENSSL_LH_doall_arg #define lh_strhash OPENSSL_LH_strhash #define lh_num_items OPENSSL_LH_num_items #ifndef OPENSSL_NO_STDIO #define lh_stats OPENSSL_LH_stats #define lh_node_stats OPENSSL_LH_node_stats #define lh_node_usage_stats OPENSSL_LH_node_usage_stats #endif #define lh_stats_bio OPENSSL_LH_stats_bio #define lh_node_stats_bio OPENSSL_LH_node_stats_bio #define lh_node_usage_stats_bio OPENSSL_LH_node_usage_stats_bio #endif /* Type checking... */ #define LHASH_OF(type) struct lhash_st_##type /* Helper macro for internal use */ #define DEFINE_LHASH_OF_INTERNAL(type) \ LHASH_OF(type) \ { \ union lh_##type##_dummy { \ void *d1; \ unsigned long d2; \ int d3; \ } dummy; \ }; \ typedef int (*lh_##type##_compfunc)(const type *a, const type *b); \ typedef unsigned long (*lh_##type##_hashfunc)(const type *a); \ typedef void (*lh_##type##_doallfunc)(type * a); \ static ossl_inline unsigned long lh_##type##_hash_thunk(const void *data, OPENSSL_LH_HASHFUNC hfn) \ { \ unsigned long (*hfn_conv)(const type *) = (unsigned long (*)(const type *))hfn; \ return hfn_conv((const type *)data); \ } \ static ossl_inline int lh_##type##_comp_thunk(const void *da, const void *db, OPENSSL_LH_COMPFUNC cfn) \ { \ int (*cfn_conv)(const type *, const type *) = (int (*)(const type *, const type *))cfn; \ return cfn_conv((const type *)da, (const type *)db); \ } \ static ossl_inline void lh_##type##_doall_thunk(void *node, OPENSSL_LH_DOALL_FUNC doall) \ { \ void (*doall_conv)(type *) = (void (*)(type *))doall; \ doall_conv((type *)node); \ } \ static ossl_inline void lh_##type##_doall_arg_thunk(void *node, void *arg, OPENSSL_LH_DOALL_FUNCARG doall) \ { \ void (*doall_conv)(type *, void *) = (void (*)(type *, void *))doall; \ doall_conv((type *)node, arg); \ } \ static ossl_unused ossl_inline type * \ ossl_check_##type##_lh_plain_type(type *ptr) \ { \ return ptr; \ } \ static ossl_unused ossl_inline const type * \ ossl_check_const_##type##_lh_plain_type(const type *ptr) \ { \ return ptr; \ } \ static ossl_unused ossl_inline const OPENSSL_LHASH * \ ossl_check_const_##type##_lh_type(const LHASH_OF(type) *lh) \ { \ return (const OPENSSL_LHASH *)lh; \ } \ static ossl_unused ossl_inline OPENSSL_LHASH * \ ossl_check_##type##_lh_type(LHASH_OF(type) *lh) \ { \ return (OPENSSL_LHASH *)lh; \ } \ static ossl_unused ossl_inline OPENSSL_LH_COMPFUNC \ ossl_check_##type##_lh_compfunc_type(lh_##type##_compfunc cmp) \ { \ return (OPENSSL_LH_COMPFUNC)cmp; \ } \ static ossl_unused ossl_inline OPENSSL_LH_HASHFUNC \ ossl_check_##type##_lh_hashfunc_type(lh_##type##_hashfunc hfn) \ { \ return (OPENSSL_LH_HASHFUNC)hfn; \ } \ static ossl_unused ossl_inline OPENSSL_LH_DOALL_FUNC \ ossl_check_##type##_lh_doallfunc_type(lh_##type##_doallfunc dfn) \ { \ return (OPENSSL_LH_DOALL_FUNC)dfn; \ } \ LHASH_OF(type) #ifndef OPENSSL_NO_DEPRECATED_3_1 #define DEFINE_LHASH_OF_DEPRECATED(type) \ static ossl_unused ossl_inline void \ lh_##type##_node_stats_bio(const LHASH_OF(type) *lh, BIO *out) \ { \ OPENSSL_LH_node_stats_bio((const OPENSSL_LHASH *)lh, out); \ } \ static ossl_unused ossl_inline void \ lh_##type##_node_usage_stats_bio(const LHASH_OF(type) *lh, BIO *out) \ { \ OPENSSL_LH_node_usage_stats_bio((const OPENSSL_LHASH *)lh, out); \ } \ static ossl_unused ossl_inline void \ lh_##type##_stats_bio(const LHASH_OF(type) *lh, BIO *out) \ { \ OPENSSL_LH_stats_bio((const OPENSSL_LHASH *)lh, out); \ } #else #define DEFINE_LHASH_OF_DEPRECATED(type) #endif #define DEFINE_LHASH_OF_EX(type) \ LHASH_OF(type) \ { \ union lh_##type##_dummy { \ void *d1; \ unsigned long d2; \ int d3; \ } dummy; \ }; \ static unsigned long \ lh_##type##_hfn_thunk(const void *data, OPENSSL_LH_HASHFUNC hfn) \ { \ unsigned long (*hfn_conv)(const type *) = (unsigned long (*)(const type *))hfn; \ return hfn_conv((const type *)data); \ } \ static int lh_##type##_cfn_thunk(const void *da, const void *db, OPENSSL_LH_COMPFUNC cfn) \ { \ int (*cfn_conv)(const type *, const type *) = (int (*)(const type *, const type *))cfn; \ return cfn_conv((const type *)da, (const type *)db); \ } \ static ossl_unused ossl_inline void \ lh_##type##_free(LHASH_OF(type) *lh) \ { \ OPENSSL_LH_free((OPENSSL_LHASH *)lh); \ } \ static ossl_unused ossl_inline void \ lh_##type##_flush(LHASH_OF(type) *lh) \ { \ OPENSSL_LH_flush((OPENSSL_LHASH *)lh); \ } \ static ossl_unused ossl_inline type * \ lh_##type##_insert(LHASH_OF(type) *lh, type *d) \ { \ return (type *)OPENSSL_LH_insert((OPENSSL_LHASH *)lh, d); \ } \ static ossl_unused ossl_inline type * \ lh_##type##_delete(LHASH_OF(type) *lh, const type *d) \ { \ return (type *)OPENSSL_LH_delete((OPENSSL_LHASH *)lh, d); \ } \ static ossl_unused ossl_inline type * \ lh_##type##_retrieve(LHASH_OF(type) *lh, const type *d) \ { \ return (type *)OPENSSL_LH_retrieve((OPENSSL_LHASH *)lh, d); \ } \ static ossl_unused ossl_inline int \ lh_##type##_error(LHASH_OF(type) *lh) \ { \ return OPENSSL_LH_error((OPENSSL_LHASH *)lh); \ } \ static ossl_unused ossl_inline unsigned long \ lh_##type##_num_items(LHASH_OF(type) *lh) \ { \ return OPENSSL_LH_num_items((OPENSSL_LHASH *)lh); \ } \ static ossl_unused ossl_inline unsigned long \ lh_##type##_get_down_load(LHASH_OF(type) *lh) \ { \ return OPENSSL_LH_get_down_load((OPENSSL_LHASH *)lh); \ } \ static ossl_unused ossl_inline void \ lh_##type##_set_down_load(LHASH_OF(type) *lh, unsigned long dl) \ { \ OPENSSL_LH_set_down_load((OPENSSL_LHASH *)lh, dl); \ } \ static ossl_unused ossl_inline void \ lh_##type##_doall_thunk(void *node, OPENSSL_LH_DOALL_FUNC doall) \ { \ void (*doall_conv)(type *) = (void (*)(type *))doall; \ doall_conv((type *)node); \ } \ static ossl_unused ossl_inline void \ lh_##type##_doall_arg_thunk(void *node, void *arg, OPENSSL_LH_DOALL_FUNCARG doall) \ { \ void (*doall_conv)(type *, void *) = (void (*)(type *, void *))doall; \ doall_conv((type *)node, arg); \ } \ static ossl_unused ossl_inline void \ lh_##type##_doall(LHASH_OF(type) *lh, void (*doall)(type *)) \ { \ OPENSSL_LH_doall((OPENSSL_LHASH *)lh, (OPENSSL_LH_DOALL_FUNC)doall); \ } \ static ossl_unused ossl_inline LHASH_OF(type) * \ lh_##type##_new(unsigned long (*hfn)(const type *), \ int (*cfn)(const type *, const type *)) \ { \ return (LHASH_OF(type) *)OPENSSL_LH_set_thunks(OPENSSL_LH_new((OPENSSL_LH_HASHFUNC)hfn, (OPENSSL_LH_COMPFUNC)cfn), \ lh_##type##_hfn_thunk, lh_##type##_cfn_thunk, \ lh_##type##_doall_thunk, \ lh_##type##_doall_arg_thunk); \ } \ static ossl_unused ossl_inline void \ lh_##type##_doall_arg(LHASH_OF(type) *lh, \ void (*doallarg)(type *, void *), void *arg) \ { \ OPENSSL_LH_doall_arg((OPENSSL_LHASH *)lh, \ (OPENSSL_LH_DOALL_FUNCARG)doallarg, arg); \ } \ LHASH_OF(type) #define DEFINE_LHASH_OF(type) \ DEFINE_LHASH_OF_EX(type); \ DEFINE_LHASH_OF_DEPRECATED(type) \ LHASH_OF(type) #define IMPLEMENT_LHASH_DOALL_ARG_CONST(type, argtype) \ int_implement_lhash_doall(type, argtype, const type) #define IMPLEMENT_LHASH_DOALL_ARG(type, argtype) \ int_implement_lhash_doall(type, argtype, type) #define int_implement_lhash_doall(type, argtype, cbargtype) \ static ossl_unused ossl_inline void \ lh_##type##_doall_##argtype##_thunk(void *node, void *arg, OPENSSL_LH_DOALL_FUNCARG fn) \ { \ void (*fn_conv)(cbargtype *, argtype *) = (void (*)(cbargtype *, argtype *))fn; \ fn_conv((cbargtype *)node, (argtype *)arg); \ } \ static ossl_unused ossl_inline void \ lh_##type##_doall_##argtype(LHASH_OF(type) *lh, \ void (*fn)(cbargtype *, argtype *), \ argtype *arg) \ { \ OPENSSL_LH_doall_arg_thunk((OPENSSL_LHASH *)lh, \ lh_##type##_doall_##argtype##_thunk, \ (OPENSSL_LH_DOALL_FUNCARG)fn, \ (void *)arg); \ } \ LHASH_OF(type) /* clang-format off */ DEFINE_LHASH_OF_INTERNAL(OPENSSL_STRING); #define lh_OPENSSL_STRING_new(hfn, cmp) ((LHASH_OF(OPENSSL_STRING) *)OPENSSL_LH_set_thunks(OPENSSL_LH_new(ossl_check_OPENSSL_STRING_lh_hashfunc_type(hfn), ossl_check_OPENSSL_STRING_lh_compfunc_type(cmp)), lh_OPENSSL_STRING_hash_thunk, lh_OPENSSL_STRING_comp_thunk, lh_OPENSSL_STRING_doall_thunk, lh_OPENSSL_STRING_doall_arg_thunk)) #define lh_OPENSSL_STRING_free(lh) OPENSSL_LH_free(ossl_check_OPENSSL_STRING_lh_type(lh)) #define lh_OPENSSL_STRING_flush(lh) OPENSSL_LH_flush(ossl_check_OPENSSL_STRING_lh_type(lh)) #define lh_OPENSSL_STRING_insert(lh, ptr) ((OPENSSL_STRING *)OPENSSL_LH_insert(ossl_check_OPENSSL_STRING_lh_type(lh), ossl_check_OPENSSL_STRING_lh_plain_type(ptr))) #define lh_OPENSSL_STRING_delete(lh, ptr) ((OPENSSL_STRING *)OPENSSL_LH_delete(ossl_check_OPENSSL_STRING_lh_type(lh), ossl_check_const_OPENSSL_STRING_lh_plain_type(ptr))) #define lh_OPENSSL_STRING_retrieve(lh, ptr) ((OPENSSL_STRING *)OPENSSL_LH_retrieve(ossl_check_OPENSSL_STRING_lh_type(lh), ossl_check_const_OPENSSL_STRING_lh_plain_type(ptr))) #define lh_OPENSSL_STRING_error(lh) OPENSSL_LH_error(ossl_check_OPENSSL_STRING_lh_type(lh)) #define lh_OPENSSL_STRING_num_items(lh) OPENSSL_LH_num_items(ossl_check_OPENSSL_STRING_lh_type(lh)) #define lh_OPENSSL_STRING_node_stats_bio(lh, out) OPENSSL_LH_node_stats_bio(ossl_check_const_OPENSSL_STRING_lh_type(lh), out) #define lh_OPENSSL_STRING_node_usage_stats_bio(lh, out) OPENSSL_LH_node_usage_stats_bio(ossl_check_const_OPENSSL_STRING_lh_type(lh), out) #define lh_OPENSSL_STRING_stats_bio(lh, out) OPENSSL_LH_stats_bio(ossl_check_const_OPENSSL_STRING_lh_type(lh), out) #define lh_OPENSSL_STRING_get_down_load(lh) OPENSSL_LH_get_down_load(ossl_check_OPENSSL_STRING_lh_type(lh)) #define lh_OPENSSL_STRING_set_down_load(lh, dl) OPENSSL_LH_set_down_load(ossl_check_OPENSSL_STRING_lh_type(lh), dl) #define lh_OPENSSL_STRING_doall(lh, dfn) OPENSSL_LH_doall(ossl_check_OPENSSL_STRING_lh_type(lh), ossl_check_OPENSSL_STRING_lh_doallfunc_type(dfn)) DEFINE_LHASH_OF_INTERNAL(OPENSSL_CSTRING); #define lh_OPENSSL_CSTRING_new(hfn, cmp) ((LHASH_OF(OPENSSL_CSTRING) *)OPENSSL_LH_set_thunks(OPENSSL_LH_new(ossl_check_OPENSSL_CSTRING_lh_hashfunc_type(hfn), ossl_check_OPENSSL_CSTRING_lh_compfunc_type(cmp)), lh_OPENSSL_CSTRING_hash_thunk, lh_OPENSSL_CSTRING_comp_thunk, lh_OPENSSL_CSTRING_doall_thunk, lh_OPENSSL_CSTRING_doall_arg_thunk)) #define lh_OPENSSL_CSTRING_free(lh) OPENSSL_LH_free(ossl_check_OPENSSL_CSTRING_lh_type(lh)) #define lh_OPENSSL_CSTRING_flush(lh) OPENSSL_LH_flush(ossl_check_OPENSSL_CSTRING_lh_type(lh)) #define lh_OPENSSL_CSTRING_insert(lh, ptr) ((OPENSSL_CSTRING *)OPENSSL_LH_insert(ossl_check_OPENSSL_CSTRING_lh_type(lh), ossl_check_OPENSSL_CSTRING_lh_plain_type(ptr))) #define lh_OPENSSL_CSTRING_delete(lh, ptr) ((OPENSSL_CSTRING *)OPENSSL_LH_delete(ossl_check_OPENSSL_CSTRING_lh_type(lh), ossl_check_const_OPENSSL_CSTRING_lh_plain_type(ptr))) #define lh_OPENSSL_CSTRING_retrieve(lh, ptr) ((OPENSSL_CSTRING *)OPENSSL_LH_retrieve(ossl_check_OPENSSL_CSTRING_lh_type(lh), ossl_check_const_OPENSSL_CSTRING_lh_plain_type(ptr))) #define lh_OPENSSL_CSTRING_error(lh) OPENSSL_LH_error(ossl_check_OPENSSL_CSTRING_lh_type(lh)) #define lh_OPENSSL_CSTRING_num_items(lh) OPENSSL_LH_num_items(ossl_check_OPENSSL_CSTRING_lh_type(lh)) #define lh_OPENSSL_CSTRING_node_stats_bio(lh, out) OPENSSL_LH_node_stats_bio(ossl_check_const_OPENSSL_CSTRING_lh_type(lh), out) #define lh_OPENSSL_CSTRING_node_usage_stats_bio(lh, out) OPENSSL_LH_node_usage_stats_bio(ossl_check_const_OPENSSL_CSTRING_lh_type(lh), out) #define lh_OPENSSL_CSTRING_stats_bio(lh, out) OPENSSL_LH_stats_bio(ossl_check_const_OPENSSL_CSTRING_lh_type(lh), out) #define lh_OPENSSL_CSTRING_get_down_load(lh) OPENSSL_LH_get_down_load(ossl_check_OPENSSL_CSTRING_lh_type(lh)) #define lh_OPENSSL_CSTRING_set_down_load(lh, dl) OPENSSL_LH_set_down_load(ossl_check_OPENSSL_CSTRING_lh_type(lh), dl) #define lh_OPENSSL_CSTRING_doall(lh, dfn) OPENSSL_LH_doall(ossl_check_OPENSSL_CSTRING_lh_type(lh), ossl_check_OPENSSL_CSTRING_lh_doallfunc_type(dfn)) /* clang-format on */ #ifdef __cplusplus } #endif #endif
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