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/* $Id: RTPathPurgeFilename.cpp $ */
/** @file
* IPRT - RTPathPurgeFilename
*/
/*
* Copyright (C) 2006-2023 Oracle and/or its affiliates.
*
* This file is part of VirtualBox base platform packages, as
* available from https://www.virtualbox.org.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, in version 3 of the
* License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses>.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
* in the VirtualBox distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
*/
/*********************************************************************************************************************************
* Header Files *
*********************************************************************************************************************************/
#include "internal/iprt.h"
#include <iprt/path.h>
#include <iprt/assert.h>
#include <iprt/string.h>
/*********************************************************************************************************************************
* Global Variables *
*********************************************************************************************************************************/
/** Character mappings for translating a string into a valid Windows or OS/2 filename. */
static const unsigned char g_auchWinOs2Map[256] =
{
0, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95,
32, 33, 95, 35, 36, 37, 38, 39, 40, 41, 95, 43, 44, 45, 46, 95, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 95, 59, 95, 61, 95, 95,
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 95, 93, 94, 95,
96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123, 95,125,126, 95,
128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159,
160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,
224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255
};
/* Program for generating the table:
#include <stdio.h>
#include <string.h>
int main()
{
int i;
printf("static const unsigned char g_auchWinOs2Map[256] =\n"
"{");
for (i = 0; i < 256; i++)
{
int ch = i;
if ( i <= 31
|| i == 127
|| (i < 127 && strchr("/\\*:<>?|\"", (char)i) != NULL))
ch = i > 0 ? '_' : 0;
if (i == 0)
printf("\n %3d", ch);
else if ((i % 32) == 0)
printf(",\n %3d", ch);
else
printf(",%3d", ch);
}
printf("\n"
"};\n");
return 0;
}
*/
RTDECL(char *) RTPathPurgeFilename(char *pszString, uint32_t fFlags)
{
AssertPtrReturn(pszString, NULL);
Assert(RTPATH_STR_F_IS_VALID(fFlags, 0));
/*
* Take action according to the style after first resolving the host style.
*/
if ((fFlags & RTPATH_STR_F_STYLE_MASK) == RTPATH_STR_F_STYLE_HOST)
fFlags = (fFlags & ~RTPATH_STR_F_STYLE_MASK) | RTPATH_STYLE;
if ((fFlags & RTPATH_STR_F_STYLE_MASK) == RTPATH_STR_F_STYLE_DOS)
{
/*
* Produce a filename valid on Windows and OS/2.
* Here all control characters (including tab) and path separators needs to
* be replaced, in addition to a scattering of other ones.
*/
unsigned char *puch = (unsigned char *)pszString;
uintptr_t uch;
while ((uch = *puch))
*puch++ = g_auchWinOs2Map[uch];
}
else
{
/*
* Produce a filename valid on a (typical) Unix system.
* Here only the '/' needs to be replaced.
*/
Assert((fFlags & RTPATH_STR_F_STYLE_MASK) == RTPATH_STR_F_STYLE_UNIX);
char *pszSlash = strchr(pszString, '/');
while (pszSlash != NULL)
{
*pszSlash = '_';
pszSlash = strchr(pszSlash + 1, '/');
}
}
return pszString;
}
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