| 1 | /* $Id: strversion.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Version String Parsing.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2009-2023 Oracle and/or its affiliates.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 10 | * available from https://www.virtualbox.org.
|
|---|
| 11 | *
|
|---|
| 12 | * This program is free software; you can redistribute it and/or
|
|---|
| 13 | * modify it under the terms of the GNU General Public License
|
|---|
| 14 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 15 | * License.
|
|---|
| 16 | *
|
|---|
| 17 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 20 | * General Public License for more details.
|
|---|
| 21 | *
|
|---|
| 22 | * You should have received a copy of the GNU General Public License
|
|---|
| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 24 | *
|
|---|
| 25 | * The contents of this file may alternatively be used under the terms
|
|---|
| 26 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
|
|---|
| 28 | * in the VirtualBox distribution, in which case the provisions of the
|
|---|
| 29 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 30 | *
|
|---|
| 31 | * You may elect to license modified versions of this file under the
|
|---|
| 32 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 33 | *
|
|---|
| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
|
|---|
| 35 | */
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | /*********************************************************************************************************************************
|
|---|
| 39 | * Header Files *
|
|---|
| 40 | *********************************************************************************************************************************/
|
|---|
| 41 | #include <iprt/string.h>
|
|---|
| 42 | #include "internal/iprt.h"
|
|---|
| 43 |
|
|---|
| 44 | #include <iprt/assert.h>
|
|---|
| 45 | #include <iprt/ctype.h>
|
|---|
| 46 | #include <iprt/errcore.h>
|
|---|
| 47 |
|
|---|
| 48 |
|
|---|
| 49 | /*********************************************************************************************************************************
|
|---|
| 50 | * Defined Constants And Macros *
|
|---|
| 51 | *********************************************************************************************************************************/
|
|---|
| 52 | #define RTSTRVER_IS_PUNCTUACTION(ch) \
|
|---|
| 53 | ( (ch) == '_' || (ch) == '-' || (ch) == '+' || RT_C_IS_PUNCT(ch) )
|
|---|
| 54 |
|
|---|
| 55 |
|
|---|
| 56 | /**
|
|---|
| 57 | * Parses a out the next block from a version string.
|
|---|
| 58 | *
|
|---|
| 59 | * @returns true if numeric, false if not.
|
|---|
| 60 | * @param ppszVer The string cursor, IN/OUT.
|
|---|
| 61 | * @param pi32Value Where to return the value if numeric.
|
|---|
| 62 | * @param pcchBlock Where to return the block length.
|
|---|
| 63 | */
|
|---|
| 64 | static bool rtStrVersionParseBlock(const char **ppszVer, int32_t *pi32Value, size_t *pcchBlock)
|
|---|
| 65 | {
|
|---|
| 66 | const char *psz = *ppszVer;
|
|---|
| 67 |
|
|---|
| 68 | /*
|
|---|
| 69 | * Check for end-of-string.
|
|---|
| 70 | */
|
|---|
| 71 | if (!*psz)
|
|---|
| 72 | {
|
|---|
| 73 | *pi32Value = 0;
|
|---|
| 74 | *pcchBlock = 0;
|
|---|
| 75 | return false;
|
|---|
| 76 | }
|
|---|
| 77 |
|
|---|
| 78 | /*
|
|---|
| 79 | * Try convert the block to a number the simple way.
|
|---|
| 80 | */
|
|---|
| 81 | char ch;
|
|---|
| 82 | bool fNumeric = RT_C_IS_DIGIT(*psz);
|
|---|
| 83 | if (fNumeric)
|
|---|
| 84 | {
|
|---|
| 85 | do
|
|---|
| 86 | ch = *++psz;
|
|---|
| 87 | while (ch && RT_C_IS_DIGIT(ch));
|
|---|
| 88 |
|
|---|
| 89 | int rc = RTStrToInt32Ex(*ppszVer, NULL, 10, pi32Value);
|
|---|
| 90 | if (RT_FAILURE(rc) || rc == VWRN_NUMBER_TOO_BIG)
|
|---|
| 91 | {
|
|---|
| 92 | AssertRC(rc);
|
|---|
| 93 | fNumeric = false;
|
|---|
| 94 | *pi32Value = 0;
|
|---|
| 95 | }
|
|---|
| 96 | }
|
|---|
| 97 | else
|
|---|
| 98 | {
|
|---|
| 99 | /*
|
|---|
| 100 | * Find the end of the current string. Make a special case for SVN
|
|---|
| 101 | * revision numbers that immediately follows a release tag string.
|
|---|
| 102 | */
|
|---|
| 103 | do
|
|---|
| 104 | ch = *++psz;
|
|---|
| 105 | while ( ch
|
|---|
| 106 | && !RT_C_IS_DIGIT(ch)
|
|---|
| 107 | && !RTSTRVER_IS_PUNCTUACTION(ch));
|
|---|
| 108 |
|
|---|
| 109 | size_t cchBlock = psz - *ppszVer;
|
|---|
| 110 | if ( cchBlock > 1
|
|---|
| 111 | && psz[-1] == 'r'
|
|---|
| 112 | && RT_C_IS_DIGIT(*psz))
|
|---|
| 113 | {
|
|---|
| 114 | psz--;
|
|---|
| 115 | cchBlock--;
|
|---|
| 116 | }
|
|---|
| 117 |
|
|---|
| 118 |
|
|---|
| 119 | /*
|
|---|
| 120 | * Translate standard pre release terms to negative values.
|
|---|
| 121 | */
|
|---|
| 122 | static const struct
|
|---|
| 123 | {
|
|---|
| 124 | size_t cch;
|
|---|
| 125 | const char *psz;
|
|---|
| 126 | int32_t iValue;
|
|---|
| 127 | } s_aTerms[] =
|
|---|
| 128 | {
|
|---|
| 129 | { 2, "RC", -100000 },
|
|---|
| 130 | { 3, "PRE", -200000 },
|
|---|
| 131 | { 5, "GAMMA", -300000 },
|
|---|
| 132 | { 4, "BETA", -400000 },
|
|---|
| 133 | { 5, "ALPHA", -500000 }
|
|---|
| 134 | };
|
|---|
| 135 |
|
|---|
| 136 | int32_t iVal1 = 0;
|
|---|
| 137 | for (unsigned i = 0; i < RT_ELEMENTS(s_aTerms); i++)
|
|---|
| 138 | if ( cchBlock == s_aTerms[i].cch
|
|---|
| 139 | && !RTStrNCmp(s_aTerms[i].psz, *ppszVer, cchBlock))
|
|---|
| 140 | {
|
|---|
| 141 | iVal1 = s_aTerms[i].iValue;
|
|---|
| 142 | break;
|
|---|
| 143 | }
|
|---|
| 144 | if (iVal1 != 0)
|
|---|
| 145 | {
|
|---|
| 146 | /*
|
|---|
| 147 | * Does the prelease term have a trailing number?
|
|---|
| 148 | * Add it assuming BETA == BETA1.
|
|---|
| 149 | */
|
|---|
| 150 | if (RT_C_IS_DIGIT(*psz))
|
|---|
| 151 | {
|
|---|
| 152 | const char *psz2 = psz;
|
|---|
| 153 | do
|
|---|
| 154 | ch = *++psz;
|
|---|
| 155 | while ( ch
|
|---|
| 156 | && RT_C_IS_DIGIT(ch)
|
|---|
| 157 | && !RTSTRVER_IS_PUNCTUACTION(ch));
|
|---|
| 158 |
|
|---|
| 159 | int rc = RTStrToInt32Ex(psz2, NULL, 10, pi32Value);
|
|---|
| 160 | if (RT_SUCCESS(rc) && rc != VWRN_NUMBER_TOO_BIG && *pi32Value)
|
|---|
| 161 | iVal1 += *pi32Value - 1;
|
|---|
| 162 | else
|
|---|
| 163 | {
|
|---|
| 164 | AssertRC(rc);
|
|---|
| 165 | psz = psz2;
|
|---|
| 166 | }
|
|---|
| 167 | }
|
|---|
| 168 | fNumeric = true;
|
|---|
| 169 | }
|
|---|
| 170 | *pi32Value = iVal1;
|
|---|
| 171 | }
|
|---|
| 172 | *pcchBlock = psz - *ppszVer;
|
|---|
| 173 |
|
|---|
| 174 | /*
|
|---|
| 175 | * Skip trailing punctuation.
|
|---|
| 176 | */
|
|---|
| 177 | if (RTSTRVER_IS_PUNCTUACTION(*psz))
|
|---|
| 178 | psz++;
|
|---|
| 179 | *ppszVer = psz;
|
|---|
| 180 |
|
|---|
| 181 | return fNumeric;
|
|---|
| 182 | }
|
|---|
| 183 |
|
|---|
| 184 |
|
|---|
| 185 | RTDECL(int) RTStrVersionCompare(const char *pszVer1, const char *pszVer2)
|
|---|
| 186 | {
|
|---|
| 187 | AssertPtr(pszVer1);
|
|---|
| 188 | AssertPtr(pszVer2);
|
|---|
| 189 |
|
|---|
| 190 | /*
|
|---|
| 191 | * Do a parallel parse of the strings.
|
|---|
| 192 | */
|
|---|
| 193 | while (*pszVer1 || *pszVer2)
|
|---|
| 194 | {
|
|---|
| 195 | const char *pszBlock1 = pszVer1;
|
|---|
| 196 | size_t cchBlock1;
|
|---|
| 197 | int32_t iVal1;
|
|---|
| 198 | bool fNumeric1 = rtStrVersionParseBlock(&pszVer1, &iVal1, &cchBlock1);
|
|---|
| 199 |
|
|---|
| 200 | const char *pszBlock2 = pszVer2;
|
|---|
| 201 | size_t cchBlock2;
|
|---|
| 202 | int32_t iVal2;
|
|---|
| 203 | bool fNumeric2 = rtStrVersionParseBlock(&pszVer2, &iVal2, &cchBlock2);
|
|---|
| 204 |
|
|---|
| 205 | if (fNumeric1 && fNumeric2)
|
|---|
| 206 | {
|
|---|
| 207 | if (iVal1 != iVal2)
|
|---|
| 208 | return iVal1 < iVal2 ? -1 : 1;
|
|---|
| 209 | }
|
|---|
| 210 | else if ( fNumeric1 != fNumeric2
|
|---|
| 211 | && ( fNumeric1
|
|---|
| 212 | ? iVal1 == 0 && cchBlock2 == 0
|
|---|
| 213 | : iVal2 == 0 && cchBlock1 == 0)
|
|---|
| 214 | )
|
|---|
| 215 | {
|
|---|
| 216 | /*else: 1.0 == 1.0.0.0.0. */;
|
|---|
| 217 | }
|
|---|
| 218 | else if ( fNumeric1 != fNumeric2
|
|---|
| 219 | && (fNumeric1 ? iVal1 : iVal2) < 0)
|
|---|
| 220 | {
|
|---|
| 221 | /* Pre-release indicators are smaller than all other strings. */
|
|---|
| 222 | return fNumeric1 ? -1 : 1;
|
|---|
| 223 | }
|
|---|
| 224 | else
|
|---|
| 225 | {
|
|---|
| 226 | int iDiff = RTStrNICmp(pszBlock1, pszBlock2, RT_MIN(cchBlock1, cchBlock2));
|
|---|
| 227 | if (!iDiff && cchBlock1 != cchBlock2)
|
|---|
| 228 | iDiff = cchBlock1 < cchBlock2 ? -1 : 1;
|
|---|
| 229 | if (iDiff)
|
|---|
| 230 | return iDiff < 0 ? -1 : 1;
|
|---|
| 231 | }
|
|---|
| 232 | }
|
|---|
| 233 | return 0;
|
|---|
| 234 | }
|
|---|
| 235 | RT_EXPORT_SYMBOL(RTStrVersionCompare);
|
|---|
