87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/* 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;
|
|
}
|