mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-04 13:23:26 +01:00
215 lines
5.3 KiB
C
215 lines
5.3 KiB
C
/*
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* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/* Part of the code in here was originally in conf.c, which is now removed */
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#include "e_os.h"
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#include "internal/cryptlib.h"
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#include <stdlib.h>
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#include <string.h>
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#include <openssl/conf.h>
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#include <openssl/conf_api.h>
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#include "conf_local.h"
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static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf);
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static void value_free_stack_doall(CONF_VALUE *a);
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CONF_VALUE *_CONF_get_section(const CONF *conf, const char *section)
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{
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CONF_VALUE vv;
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if (conf == NULL || section == NULL)
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return NULL;
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vv.name = NULL;
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vv.section = (char *)section;
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return conf->data != NULL ? lh_CONF_VALUE_retrieve(conf->data, &vv) : NULL;
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}
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STACK_OF(CONF_VALUE) *_CONF_get_section_values(const CONF *conf,
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const char *section)
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{
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CONF_VALUE *v;
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v = _CONF_get_section(conf, section);
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if (v == NULL)
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return NULL;
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return ((STACK_OF(CONF_VALUE) *)v->value);
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}
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int _CONF_add_string(CONF *conf, CONF_VALUE *section, CONF_VALUE *value)
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{
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CONF_VALUE *v = NULL;
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STACK_OF(CONF_VALUE) *ts;
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ts = (STACK_OF(CONF_VALUE) *)section->value;
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value->section = section->section;
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if (!sk_CONF_VALUE_push(ts, value))
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return 0;
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v = lh_CONF_VALUE_insert(conf->data, value);
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if (v != NULL) {
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(void)sk_CONF_VALUE_delete_ptr(ts, v);
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OPENSSL_free(v->name);
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OPENSSL_free(v->value);
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OPENSSL_free(v);
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}
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return 1;
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}
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char *_CONF_get_string(const CONF *conf, const char *section,
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const char *name)
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{
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CONF_VALUE *v, vv;
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char *p;
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if (name == NULL)
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return NULL;
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if (conf == NULL)
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return ossl_safe_getenv(name);
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if (conf->data == NULL)
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return NULL;
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if (section != NULL) {
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vv.name = (char *)name;
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vv.section = (char *)section;
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v = lh_CONF_VALUE_retrieve(conf->data, &vv);
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if (v != NULL)
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return v->value;
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if (strcmp(section, "ENV") == 0) {
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p = ossl_safe_getenv(name);
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if (p != NULL)
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return p;
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}
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}
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vv.section = "default";
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vv.name = (char *)name;
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v = lh_CONF_VALUE_retrieve(conf->data, &vv);
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if (v == NULL)
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return NULL;
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return v->value;
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}
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static unsigned long conf_value_hash(const CONF_VALUE *v)
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{
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return (OPENSSL_LH_strhash(v->section) << 2) ^ OPENSSL_LH_strhash(v->name);
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}
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static int conf_value_cmp(const CONF_VALUE *a, const CONF_VALUE *b)
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{
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int i;
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if (a->section != b->section) {
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i = strcmp(a->section, b->section);
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if (i != 0)
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return i;
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}
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if (a->name != NULL && b->name != NULL)
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return strcmp(a->name, b->name);
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if (a->name == b->name)
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return 0;
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return (a->name == NULL) ? -1 : 1;
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}
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int _CONF_new_data(CONF *conf)
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{
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if (conf == NULL)
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return 0;
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if (conf->data == NULL) {
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conf->data = lh_CONF_VALUE_new(conf_value_hash, conf_value_cmp);
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if (conf->data == NULL)
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return 0;
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}
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return 1;
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}
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typedef LHASH_OF(CONF_VALUE) LH_CONF_VALUE;
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IMPLEMENT_LHASH_DOALL_ARG_CONST(CONF_VALUE, LH_CONF_VALUE);
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void _CONF_free_data(CONF *conf)
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{
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if (conf == NULL)
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return;
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OPENSSL_free(conf->includedir);
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if (conf->data == NULL)
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return;
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/* evil thing to make sure the 'OPENSSL_free()' works as expected */
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lh_CONF_VALUE_set_down_load(conf->data, 0);
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lh_CONF_VALUE_doall_LH_CONF_VALUE(conf->data, value_free_hash, conf->data);
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/*
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* We now have only 'section' entries in the hash table. Due to problems
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* with
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*/
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lh_CONF_VALUE_doall(conf->data, value_free_stack_doall);
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lh_CONF_VALUE_free(conf->data);
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}
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static void value_free_hash(const CONF_VALUE *a, LHASH_OF(CONF_VALUE) *conf)
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{
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if (a->name != NULL)
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(void)lh_CONF_VALUE_delete(conf, a);
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}
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static void value_free_stack_doall(CONF_VALUE *a)
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{
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CONF_VALUE *vv;
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STACK_OF(CONF_VALUE) *sk;
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int i;
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if (a->name != NULL)
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return;
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sk = (STACK_OF(CONF_VALUE) *)a->value;
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for (i = sk_CONF_VALUE_num(sk) - 1; i >= 0; i--) {
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vv = sk_CONF_VALUE_value(sk, i);
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OPENSSL_free(vv->value);
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OPENSSL_free(vv->name);
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OPENSSL_free(vv);
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}
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sk_CONF_VALUE_free(sk);
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OPENSSL_free(a->section);
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OPENSSL_free(a);
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}
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CONF_VALUE *_CONF_new_section(CONF *conf, const char *section)
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{
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STACK_OF(CONF_VALUE) *sk = NULL;
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int i;
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CONF_VALUE *v = NULL, *vv;
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if ((sk = sk_CONF_VALUE_new_null()) == NULL)
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goto err;
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if ((v = OPENSSL_malloc(sizeof(*v))) == NULL)
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goto err;
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i = strlen(section) + 1;
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if ((v->section = OPENSSL_malloc(i)) == NULL)
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goto err;
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memcpy(v->section, section, i);
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v->name = NULL;
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v->value = (char *)sk;
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vv = lh_CONF_VALUE_insert(conf->data, v);
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if (vv != NULL || lh_CONF_VALUE_error(conf->data) > 0)
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goto err;
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return v;
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err:
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sk_CONF_VALUE_free(sk);
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if (v != NULL)
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OPENSSL_free(v->section);
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OPENSSL_free(v);
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return NULL;
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}
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