| 1 | /* $Id: bs3-cmn-StrPrintf.c 62484 2016-07-22 18:35:33Z vboxsync $ */
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| 2 | /** @file
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| 3 | * BS3Kit - Bs3StrPrintf, Bs3StrPrintfV
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007-2016 Oracle Corporation
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * The contents of this file may alternatively be used under the terms
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| 18 | * of the Common Development and Distribution License Version 1.0
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| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 20 | * VirtualBox OSE distribution, in which case the provisions of the
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| 21 | * CDDL are applicable instead of those of the GPL.
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| 22 | *
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| 23 | * You may elect to license modified versions of this file under the
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| 24 | * terms and conditions of either the GPL or the CDDL or both.
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| 25 | */
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| 26 |
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| 27 |
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| 28 | /*********************************************************************************************************************************
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| 29 | * Header Files *
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| 30 | *********************************************************************************************************************************/
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| 31 | #include "bs3kit-template-header.h"
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| 32 | #include <iprt/ctype.h>
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| 33 |
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| 34 |
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| 35 | /*********************************************************************************************************************************
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| 36 | * Structures and Typedefs *
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| 37 | *********************************************************************************************************************************/
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| 38 | typedef struct BS3STRPRINTFSTATE
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| 39 | {
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| 40 | /** Current buffer position. */
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| 41 | char *pchBuf;
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| 42 | /** Number of bytes left in the buffer. */
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| 43 | size_t cchLeft;
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| 44 | } BS3STRPRINTFSTATE;
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| 45 | typedef BS3STRPRINTFSTATE BS3_FAR *PBS3STRPRINTFSTATE;
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| 46 |
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| 47 |
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| 48 |
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| 49 | static BS3_DECL_CALLBACK(size_t) bs3StrPrintfFmtOutput(char ch, void BS3_FAR *pvUser)
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| 50 | {
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| 51 | PBS3STRPRINTFSTATE pState = (PBS3STRPRINTFSTATE)pvUser;
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| 52 | if (ch)
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| 53 | {
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| 54 | /* Put to the buffer if there is place for this char and a terminator. */
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| 55 | if (pState->cchLeft > 1)
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| 56 | {
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| 57 | pState->cchLeft--;
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| 58 | *pState->pchBuf++ = ch;
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| 59 | }
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| 60 |
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| 61 | /* Always return 1. */
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| 62 | return 1;
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| 63 | }
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| 64 |
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| 65 | /* Terminate the string. */
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| 66 | if (pState->cchLeft)
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| 67 | {
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| 68 | pState->cchLeft--;
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| 69 | *pState->pchBuf++ = '\0';
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| 70 | }
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| 71 | return 0;
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| 72 | }
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| 73 |
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| 74 |
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| 75 | #undef Bs3StrPrintfV
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| 76 | BS3_CMN_DEF(size_t, Bs3StrPrintfV,(char BS3_FAR *pszBuf, size_t cchBuf, const char BS3_FAR *pszFormat, va_list va))
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| 77 | {
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| 78 | BS3STRPRINTFSTATE State;
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| 79 | State.pchBuf = pszBuf;
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| 80 | State.cchLeft = cchBuf;
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| 81 | return Bs3StrFormatV(pszFormat, va, bs3StrPrintfFmtOutput, &State);
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| 82 | }
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| 83 |
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| 84 |
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| 85 | #undef Bs3StrPrintf
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| 86 | BS3_CMN_DEF(size_t, Bs3StrPrintf,(char BS3_FAR *pszBuf, size_t cchBuf, const char BS3_FAR *pszFormat, ...))
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| 87 | {
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| 88 | size_t cchRet;
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| 89 | va_list va;
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| 90 | va_start(va, pszFormat);
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| 91 | cchRet = BS3_CMN_NM(Bs3StrPrintfV)(pszBuf, cchBuf, pszFormat, va);
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| 92 | va_end(va);
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| 93 | return cchRet;
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| 94 | }
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| 95 |
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