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/* Copyright 1996,1997,1999,2001-2003,2008,2009,2021 Alain Knaff.
* This file is part of mtools.
*
* Mtools 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, either version 3 of the License, or
* (at your option) any later version.
*
* Mtools 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 Mtools. If not, see <http://www.gnu.org/licenses/>.
*/
#include "sysincludes.h"
#include "msdos.h"
#include "mtools.h"
#include "codepage.h"
typedef struct Filter_t {
struct Stream_t head;
int mode;
/* int convertCharset; */
} Filter_t;
/* read filter filters out messy dos' bizarre end of lines and final 0x1a's */
static ssize_t read_filter(Stream_t *Stream, char *buf, size_t len)
{
DeclareThis(Filter_t);
size_t i,j;
ssize_t ret;
char newchar;
ret = READS(This->head.Next, buf, len);
if ( ret < 0 )
return ret;
j = 0;
for (i=0; i< (size_t) ret; i++){
if ( buf[i] == '\r' )
continue;
if (buf[i] == 0x1a)
break;
newchar = buf[i];
/*
if (This->convertCharset) newchar = contents_to_unix(newchar);
*/
buf[j++] = newchar;
}
return (ssize_t) j;
}
static Class_t FilterClass = {
read_filter,
0,
0,
0,
0, /* flush */
0,
0, /* set geometry */
get_data_pass_through,
0,
0, /* get_dosconvert */
0 /* discard */
};
Stream_t *open_dos2unix(Stream_t *Next, int convertCharset UNUSEDP)
{
Filter_t *This;
This = New(Filter_t);
if (!This)
return NULL;
init_head(&This->head, &FilterClass, Next);
/*
This->convertCharset = convertCharset;
*/
return &This->head;
}
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