forked from cory/tildefriends
218 lines
8.7 KiB
C
218 lines
8.7 KiB
C
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/*
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* Copyright 1995-2023 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 likely(x) __builtin_expect(!!(x), 1)
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# define unlikely(x) __builtin_expect(!!(x), 0)
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# else
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# define likely(x) x
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# define 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) ((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 : \
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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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c+=n; \
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l1=l2=0; \
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switch (n) { \
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case 8: l2 =((unsigned long)(*(--(c))))<<24; \
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case 7: l2|=((unsigned long)(*(--(c))))<<16; \
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case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
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case 5: l2|=((unsigned long)(*(--(c)))); \
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case 4: l1 =((unsigned long)(*(--(c))))<<24; \
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case 3: l1|=((unsigned long)(*(--(c))))<<16; \
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case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
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case 1: 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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c+=n; \
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switch (n) { \
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case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
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case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
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case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
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case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
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case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
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case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
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case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
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case 1: *(--(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)| \
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(((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)),(c)+=2)
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# define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \
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(((unsigned long)((c)[1]))<< 8)| \
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(((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)),(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 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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#endif
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