| 1 | /* $Id: strncat.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * IPRT - No-CRT Strings, strncat().
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #include "internal/iprt.h"
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| 42 | #include <iprt/string.h>
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| 43 |
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| 44 |
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| 45 | /**
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| 46 | * Append a substring to an existing string.
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| 47 | *
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| 48 | * @returns Pointer to destination string
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| 49 | * @param pszDst String to append @a cchMaxSrc chars from @a pszSrc to,
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| 50 | * plus a zero terminator.
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| 51 | * @param pszSrc Zero terminated string.
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| 52 | * @param cchMaxSrc Maximum number of chars to copy from @a pszSrc.
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| 53 | */
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| 54 | #undef strncat
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| 55 | char *RT_NOCRT(strncat)(char *pszDst, const char *pszSrc, size_t cchMaxSrc)
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| 56 | {
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| 57 | char * const pszRet = pszDst;
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| 58 |
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| 59 | pszDst = RTStrEnd(pszDst, RTSTR_MAX);
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| 60 |
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| 61 | char ch;
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| 62 | while (cchMaxSrc-- > 0 && (ch = *pszSrc++) != '\0')
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| 63 | *pszDst++ = ch;
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| 64 | *pszDst = '\0';
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| 65 |
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| 66 | return pszRet;
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| 67 | }
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| 68 | RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(strncat);
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| 69 |
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