| 1 | /* $Id: strversion.cpp 24662 2009-11-14 23:41:50Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Version String Parsing.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2009 Sun Microsystems, Inc.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | *
|
|---|
| 26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 28 | * additional information or have any questions.
|
|---|
| 29 | */
|
|---|
| 30 |
|
|---|
| 31 |
|
|---|
| 32 | /*******************************************************************************
|
|---|
| 33 | * Header Files *
|
|---|
| 34 | *******************************************************************************/
|
|---|
| 35 | #include <iprt/string.h>
|
|---|
| 36 | #include "internal/iprt.h"
|
|---|
| 37 |
|
|---|
| 38 | #include <iprt/assert.h>
|
|---|
| 39 | #include <iprt/ctype.h> /* needed for RT_C_IS_DIGIT */
|
|---|
| 40 | #include <iprt/err.h>
|
|---|
| 41 | #include <iprt/mem.h>
|
|---|
| 42 |
|
|---|
| 43 |
|
|---|
| 44 |
|
|---|
| 45 | /**
|
|---|
| 46 | * Converts a string representation of a version number to an unsigned number.
|
|---|
| 47 | *
|
|---|
| 48 | * @returns iprt status code.
|
|---|
| 49 | * Warnings are used to indicate convertion problems.
|
|---|
| 50 | * @retval VWRN_NUMBER_TOO_BIG
|
|---|
| 51 | * @retval VWRN_TRAILING_CHARS
|
|---|
| 52 | * @retval VWRN_TRAILING_SPACES
|
|---|
| 53 | * @retval VINF_SUCCESS
|
|---|
| 54 | * @retval VERR_NO_MEMORY
|
|---|
| 55 | * @retval VERR_NO_DIGITS
|
|---|
| 56 | *
|
|---|
| 57 | * @param pszValue Pointer to the string value.
|
|---|
| 58 | * @param pu32 Where to store the converted number.
|
|---|
| 59 | *
|
|---|
| 60 | * @todo r=bird: The returned value isn't really suitable for comparing two
|
|---|
| 61 | * version strings. Try see which result you get when converting
|
|---|
| 62 | * "3.0.14" and "3.1.0" and comparing the values. The way to fix this
|
|---|
| 63 | * deficiency would be to convert the individual parts and dividing the
|
|---|
| 64 | * return value into sections: bits 31:24 FirstNumber; 23:16 Second;
|
|---|
| 65 | * 15:8 Third; 7:0 Forth. It would probably be a good idea to use a
|
|---|
| 66 | * 64-bit return value instead of a 32-bit one, so there is room for
|
|---|
| 67 | * revision number when found.
|
|---|
| 68 | *
|
|---|
| 69 | * Actually, because of the above, the kind of API I had in mind was
|
|---|
| 70 | * int RTStrVersionCompare(const char *pszVer1, const char *pszVer2).
|
|---|
| 71 | * It wouldn't try convert input to numbers, just do a parallel parse.
|
|---|
| 72 | * This would allow easy handling beta/alpha/++ indicators and any
|
|---|
| 73 | * number of dots and dashes.
|
|---|
| 74 | */
|
|---|
| 75 | RTDECL(int) RTStrVersionToUInt32(const char *pszVer, uint32_t *pu32)
|
|---|
| 76 | {
|
|---|
| 77 | const char *psz = pszVer;
|
|---|
| 78 | AssertPtr(pu32);
|
|---|
| 79 | AssertPtr(psz);
|
|---|
| 80 |
|
|---|
| 81 | char *pszNew = (char*)RTMemAllocZ((strlen(pszVer) + 1) * sizeof(char));
|
|---|
| 82 | if (pszNew == NULL)
|
|---|
| 83 | return VERR_NO_MEMORY;
|
|---|
| 84 |
|
|---|
| 85 | unsigned i = 0;
|
|---|
| 86 | bool fLastInvalid = false;
|
|---|
| 87 | while ( psz
|
|---|
| 88 | && *psz != '\0')
|
|---|
| 89 | {
|
|---|
| 90 | if (fLastInvalid)
|
|---|
| 91 | {
|
|---|
| 92 | if ( *psz == '-'
|
|---|
| 93 | || *psz == '_')
|
|---|
| 94 | fLastInvalid = false;
|
|---|
| 95 | }
|
|---|
| 96 | else
|
|---|
| 97 | {
|
|---|
| 98 | if (RT_C_IS_DIGIT(*psz))
|
|---|
| 99 | pszNew[i++] = *psz;
|
|---|
| 100 | else if ( *psz != '.'
|
|---|
| 101 | && i == 0)
|
|---|
| 102 | fLastInvalid = true;
|
|---|
| 103 | }
|
|---|
| 104 | psz++;
|
|---|
| 105 | }
|
|---|
| 106 | pszNew[i] = '\0';
|
|---|
| 107 |
|
|---|
| 108 | /* Convert final number string to number */
|
|---|
| 109 | int rc;
|
|---|
| 110 | if (fLastInvalid)
|
|---|
| 111 | {
|
|---|
| 112 | *pu32 = 0;
|
|---|
| 113 | rc = VERR_NO_DIGITS;
|
|---|
| 114 | }
|
|---|
| 115 | else
|
|---|
| 116 | {
|
|---|
| 117 | rc = RTStrToUInt32Ex(pszNew, NULL /*pszNext*/, 10 /*uBase*/, pu32);
|
|---|
| 118 | if (rc != VINF_SUCCESS)
|
|---|
| 119 | *pu32 = 0;
|
|---|
| 120 | }
|
|---|
| 121 | RTStrFree(pszNew);
|
|---|
| 122 | return rc;
|
|---|
| 123 | }
|
|---|
| 124 |
|
|---|
