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changed configuration stuff, replaced some Makefile.am by distfiles.

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This commit is contained in:
Werner Koch 1997-12-23 17:30:18 +00:00
parent a112009805
commit c351df1dc5
42 changed files with 1091 additions and 220 deletions
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106
g10/textfilter.c Normal file
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/* textfilter.c
* Copyright (c) 1997 by Werner Koch (dd9jn)
*
* This file is part of G10.
*
* G10 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 2 of the License, or
* (at your option) any later version.
*
* G10 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <assert.h>
#include "errors.h"
#include "iobuf.h"
#include "memory.h"
#include "util.h"
#include "filter.h"
/****************
* The filter is used to make canonical text: Lines are terminated by
* CR, LF, trailing white spaces are removed.
*/
int
text_filter( void *opaque, int control,
IOBUF a, byte *buf, size_t *ret_len)
{
size_t size = *ret_len;
text_filter_context_t *tfx = opaque;
int i, c, rc=0;
byte *p;
if( control == IOBUFCTRL_UNDERFLOW ) {
for(i=0; i < size; i++ ) {
if( !tfx->linelen && !tfx->eof ) { /* read a complete line */
for(;;) {
if( (c = iobuf_get(a)) == -1 ) {
tfx->eof=1;
break;
}
if( c == '\n' )
break;
if( tfx->linelen >= tfx->linesize ) {
tfx->linesize += 500;
tfx->line = m_realloc( tfx->line, tfx->linesize );
}
tfx->line[tfx->linelen++] = c;
}
/* remove trailing white spaces */
p = tfx->line + tfx->linelen - 1;
for( ; p >= tfx->line; p--, tfx->linelen-- ) {
if( *p != ' ' && *p == '\t' && *p != '\r' )
break;
}
if( tfx->linelen+2 >= tfx->linesize ) {
tfx->linesize += 10;
tfx->line = m_realloc( tfx->line, tfx->linesize );
}
tfx->line[tfx->linelen++] = '\r';
tfx->line[tfx->linelen++] = '\n';
tfx->pos=0;
}
if( tfx->pos < tfx->linelen )
buf[i] = tfx->line[tfx->pos++];
else if( tfx->eof )
break;
else
tfx->linelen = 0;
}
if( !i )
rc = -1;
*ret_len = i;
}
else if( control == IOBUFCTRL_INIT ) {
tfx->linesize = 500;
tfx->line = m_alloc(tfx->linesize);
tfx->linelen = 0;
tfx->pos = 0;
tfx->eof = 0;
}
else if( control == IOBUFCTRL_FREE ) {
m_free( tfx->line );
tfx->line = NULL;
}
else if( control == IOBUFCTRL_DESC )
*(char**)buf = "text_filter";
return rc;
}