mirror of
https://github.com/openssl/openssl.git
synced 2026-01-25 02:56:43 +00:00
2fab90bb5e
Reviewed-by: Saša Nedvědický <sashan@openssl.org> Reviewed-by: Neil Horman <nhorman@openssl.org> Reviewed-by: Nikola Pajkovsky <nikolap@openssl.org> (Merged from https://github.com/openssl/openssl/pull/29242)
252 lines
9.5 KiB
C
252 lines
9.5 KiB
C
/*
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* Copyright 1995-2025 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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#ifndef OSSL_INTERNAL_COMMON_H
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#define OSSL_INTERNAL_COMMON_H
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#pragma once
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#include <stdlib.h>
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#include <string.h>
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#include "openssl/configuration.h"
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#include "internal/e_os.h" /* ossl_inline in many files */
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#include "internal/nelem.h"
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#if defined(__GNUC__) || defined(__clang__)
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#define ossl_likely(x) __builtin_expect(!!(x), 1)
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#define ossl_unlikely(x) __builtin_expect(!!(x), 0)
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#else
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#define ossl_likely(x) (x)
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#define ossl_unlikely(x) (x)
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#endif
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#if defined(__GNUC__) || defined(__clang__)
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#define ALIGN32 __attribute((aligned(32)))
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#define ALIGN64 __attribute((aligned(64)))
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#elif defined(_MSC_VER)
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#define ALIGN32 __declspec(align(32))
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#define ALIGN64 __declspec(align(64))
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#else
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#define ALIGN32
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#define ALIGN64
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#endif
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#ifdef NDEBUG
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#define ossl_assert(x) ossl_likely((x) != 0)
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#else
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__owur static ossl_inline int ossl_assert_int(int expr, const char *exprstr,
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const char *file, int line)
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{
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if (!expr)
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OPENSSL_die(exprstr, file, line);
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return expr;
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}
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#define ossl_assert(x) ossl_assert_int((x) != 0, "Assertion failed: " #x, \
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__FILE__, __LINE__)
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#endif
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/* Check if |pre|, which must be a string literal, is a prefix of |str| */
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#define HAS_PREFIX(str, pre) (strncmp(str, pre "", sizeof(pre) - 1) == 0)
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/* As before, and if check succeeds, advance |str| past the prefix |pre| */
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#define CHECK_AND_SKIP_PREFIX(str, pre) \
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(HAS_PREFIX(str, pre) ? ((str) += sizeof(pre) - 1, 1) : 0)
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/* Check if the string literal |p| is a case-insensitive prefix of |s| */
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#define HAS_CASE_PREFIX(s, p) (OPENSSL_strncasecmp(s, p "", sizeof(p) - 1) == 0)
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/* As before, and if check succeeds, advance |str| past the prefix |pre| */
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#define CHECK_AND_SKIP_CASE_PREFIX(str, pre) \
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(HAS_CASE_PREFIX(str, pre) ? ((str) += sizeof(pre) - 1, 1) : 0)
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/* Check if the string literal |suffix| is a case-insensitive suffix of |str| */
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#define HAS_CASE_SUFFIX(str, suffix) (strlen(str) < sizeof(suffix) - 1 ? 0 : OPENSSL_strcasecmp(str + strlen(str) - sizeof(suffix) + 1, suffix "") == 0)
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/*
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* Use this inside a union with the field that needs to be aligned to a
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* reasonable boundary for the platform. The most pessimistic alignment
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* of the listed types will be used by the compiler.
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*/
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#define OSSL_UNION_ALIGN \
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double align; \
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ossl_uintmax_t align_int; \
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void *align_ptr
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#define OPENSSL_CONF "openssl.cnf"
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#ifndef OPENSSL_SYS_VMS
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#define X509_CERT_AREA OPENSSLDIR
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#define X509_CERT_DIR OPENSSLDIR "/certs"
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#define X509_CERT_FILE OPENSSLDIR "/cert.pem"
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#define X509_PRIVATE_DIR OPENSSLDIR "/private"
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#define CTLOG_FILE OPENSSLDIR "/ct_log_list.cnf"
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#else
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#define X509_CERT_AREA "OSSL$DATAROOT:[000000]"
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#define X509_CERT_DIR "OSSL$DATAROOT:[CERTS]"
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#define X509_CERT_FILE "OSSL$DATAROOT:[000000]cert.pem"
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#define X509_PRIVATE_DIR "OSSL$DATAROOT:[PRIVATE]"
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#define CTLOG_FILE "OSSL$DATAROOT:[000000]ct_log_list.cnf"
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#endif
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#define X509_CERT_DIR_EVP "SSL_CERT_DIR"
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#define X509_CERT_FILE_EVP "SSL_CERT_FILE"
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#define CTLOG_FILE_EVP "CTLOG_FILE"
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/* size of string representations */
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#define DECIMAL_SIZE(type) ((sizeof(type) * 8 + 2) / 3 + 1)
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#define HEX_SIZE(type) (sizeof(type) * 2)
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#define c2l(c, l) (l = ((unsigned long)(*((c)++))), \
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l |= (((unsigned long)(*((c)++))) << 8), \
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l |= (((unsigned long)(*((c)++))) << 16), \
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l |= (((unsigned long)(*((c)++))) << 24))
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/* NOTE - c is not incremented as per c2l */
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#define c2ln(c, l1, l2, n) \
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{ \
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c += n; \
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l1 = l2 = 0; \
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switch (n) { \
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case 8: \
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l2 = ((unsigned long)(*(--(c)))) << 24; \
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case 7: \
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l2 |= ((unsigned long)(*(--(c)))) << 16; \
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case 6: \
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l2 |= ((unsigned long)(*(--(c)))) << 8; \
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case 5: \
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l2 |= ((unsigned long)(*(--(c)))); \
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case 4: \
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l1 = ((unsigned long)(*(--(c)))) << 24; \
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case 3: \
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l1 |= ((unsigned long)(*(--(c)))) << 16; \
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case 2: \
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l1 |= ((unsigned long)(*(--(c)))) << 8; \
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case 1: \
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l1 |= ((unsigned long)(*(--(c)))); \
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} \
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}
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#define l2c(l, c) (*((c)++) = (unsigned char)(((l)) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 8) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 16) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 24) & 0xff))
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#define n2l(c, l) (l = ((unsigned long)(*((c)++))) << 24, \
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l |= ((unsigned long)(*((c)++))) << 16, \
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l |= ((unsigned long)(*((c)++))) << 8, \
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l |= ((unsigned long)(*((c)++))))
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#define n2l8(c, l) (l = ((uint64_t)(*((c)++))) << 56, \
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l |= ((uint64_t)(*((c)++))) << 48, \
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l |= ((uint64_t)(*((c)++))) << 40, \
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l |= ((uint64_t)(*((c)++))) << 32, \
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l |= ((uint64_t)(*((c)++))) << 24, \
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l |= ((uint64_t)(*((c)++))) << 16, \
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l |= ((uint64_t)(*((c)++))) << 8, \
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l |= ((uint64_t)(*((c)++))))
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#define l2n(l, c) (*((c)++) = (unsigned char)(((l) >> 24) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 16) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 8) & 0xff), \
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*((c)++) = (unsigned char)(((l)) & 0xff))
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#define l2n8(l, c) (*((c)++) = (unsigned char)(((l) >> 56) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 48) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 40) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 32) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 24) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 16) & 0xff), \
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*((c)++) = (unsigned char)(((l) >> 8) & 0xff), \
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*((c)++) = (unsigned char)(((l)) & 0xff))
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/* NOTE - c is not incremented as per l2c */
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#define l2cn(l1, l2, c, n) \
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{ \
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c += n; \
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switch (n) { \
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case 8: \
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*(--(c)) = (unsigned char)(((l2) >> 24) & 0xff); \
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case 7: \
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*(--(c)) = (unsigned char)(((l2) >> 16) & 0xff); \
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case 6: \
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*(--(c)) = (unsigned char)(((l2) >> 8) & 0xff); \
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case 5: \
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*(--(c)) = (unsigned char)(((l2)) & 0xff); \
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case 4: \
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*(--(c)) = (unsigned char)(((l1) >> 24) & 0xff); \
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case 3: \
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*(--(c)) = (unsigned char)(((l1) >> 16) & 0xff); \
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case 2: \
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*(--(c)) = (unsigned char)(((l1) >> 8) & 0xff); \
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case 1: \
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*(--(c)) = (unsigned char)(((l1)) & 0xff); \
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} \
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}
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#define n2s(c, s) ((s = (((unsigned int)((c)[0])) << 8) | (((unsigned int)((c)[1])))), (c) += 2)
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#define s2n(s, c) (((c)[0] = (unsigned char)(((s) >> 8) & 0xff), \
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(c)[1] = (unsigned char)(((s)) & 0xff)), \
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(c) += 2)
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#define n2l3(c, l) ((l = (((unsigned long)((c)[0])) << 16) | (((unsigned long)((c)[1])) << 8) | (((unsigned long)((c)[2])))), (c) += 3)
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#define l2n3(l, c) (((c)[0] = (unsigned char)(((l) >> 16) & 0xff), \
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(c)[1] = (unsigned char)(((l) >> 8) & 0xff), \
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(c)[2] = (unsigned char)(((l)) & 0xff)), \
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(c) += 3)
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static ossl_inline int ossl_ends_with_dirsep(const char *path)
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{
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if (*path != '\0')
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path += strlen(path) - 1;
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#if defined __VMS
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if (*path == ']' || *path == '>' || *path == ':')
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return 1;
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#elif defined _WIN32
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if (*path == '\\')
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return 1;
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#endif
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return *path == '/';
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}
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static ossl_inline char ossl_determine_dirsep(const char *path)
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{
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if (ossl_ends_with_dirsep(path))
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return '\0';
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#if defined(_WIN32)
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return '\\';
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#elif defined(__VMS)
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return ':';
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#else
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return '/';
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#endif
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}
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static ossl_inline int ossl_is_absolute_path(const char *path)
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{
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#if defined __VMS
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if (strchr(path, ':') != NULL
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|| ((path[0] == '[' || path[0] == '<')
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&& path[1] != '.' && path[1] != '-'
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&& path[1] != ']' && path[1] != '>'))
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return 1;
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#elif defined _WIN32
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if (path[0] == '\\'
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|| (path[0] != '\0' && path[1] == ':'))
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return 1;
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#endif
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return path[0] == '/';
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}
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const char *ossl_get_openssldir(void);
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const char *ossl_get_modulesdir(void);
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const char *ossl_get_wininstallcontext(void);
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#endif
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