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* iobuf.c (block_filter): Remove the old gpg indeterminate length mode.

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(iobuf_set_block_mode, iobuf_in_block_mode): Removed as superfluous.
This commit is contained in:
David Shaw 2004-03-04 20:48:46 +00:00
parent f29639dae5
commit 6d4cc84f3c
2 changed files with 13 additions and 84 deletions
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7
util/ChangeLog
View File

@ -1,3 +1,10 @@
2004-03-04 David Shaw <dshaw@jabberwocky.com>
* iobuf.c (block_filter): Remove the old gpg indeterminate length
mode.
(iobuf_set_block_mode, iobuf_in_block_mode): Removed as
superfluous.
2004-03-01 David Shaw <dshaw@jabberwocky.com>
* iobuf.c (block_filter): Properly handle a partial body stream

90
util/iobuf.c
View File

@ -679,22 +679,8 @@ block_filter(void *opaque, int control, IOBUF chain, byte *buf, size_t *ret_len)
}
/* log_debug("partial: ctx=%p c=%02x size=%u\n", a, c, a->size);*/
}
else { /* the gnupg partial length scheme - much better :-) */
c = iobuf_get(chain);
a->size = c << 8;
c = iobuf_get(chain);
a->size |= c;
if( c == -1 ) {
log_error("block_filter: error reading length info\n");
rc = G10ERR_READ_FILE;
}
if( !a->size ) {
a->eof = 1;
if( !n )
rc = -1;
break;
}
}
else
BUG();
}
while( !rc && size && a->size ) {
@ -768,35 +754,8 @@ block_filter(void *opaque, int control, IOBUF chain, byte *buf, size_t *ret_len)
}
}
}
else { /* the gnupg scheme (which is not openpgp compliant) */
size_t avail, n;
for(p=buf; !rc && size; ) {
n = size;
avail = a->size - a->count;
if( !avail ) {
if( n > a->size ) {
iobuf_put( chain, (a->size >> 8) & 0xff );
iobuf_put( chain, a->size & 0xff );
avail = a->size;
a->count = 0;
}
else {
iobuf_put( chain, (n >> 8) & 0xff );
iobuf_put( chain, n & 0xff );
avail = n;
a->count = a->size - n;
}
}
if( n > avail )
n = avail;
if( iobuf_write(chain, p, n ) )
rc = G10ERR_WRITE_FILE;
a->count += n;
p += n;
size -= n;
}
}
else
BUG();
}
else if( control == IOBUFCTRL_INIT ) {
if( DBG_IOBUF )
@ -852,10 +811,8 @@ block_filter(void *opaque, int control, IOBUF chain, byte *buf, size_t *ret_len)
}
m_free( a->buffer ); a->buffer = NULL; a->buflen = 0;
}
else {
iobuf_writebyte(chain, 0);
iobuf_writebyte(chain, 0);
}
else
BUG();
}
else if( a->size ) {
log_error("block_filter: pending bytes!\n");
@ -2024,28 +1981,6 @@ iobuf_get_fname( IOBUF a )
return NULL;
}
/****************
* Start the block write mode, see rfc1991.new for details.
* A value of 0 for N stops this mode (flushes and writes
* the end marker)
*/
void
iobuf_set_block_mode( IOBUF a, size_t n )
{
block_filter_ctx_t *ctx = m_alloc_clear( sizeof *ctx );
assert( a->use == 1 || a->use == 2 );
ctx->use = a->use;
if( !n ) {
if( a->use == 1 )
log_debug("pop_filter called in set_block_mode - please report\n");
pop_filter(a, block_filter, NULL );
}
else {
ctx->size = n; /* only needed for use 2 */
iobuf_push_filter(a, block_filter, ctx );
}
}
/****************
* enable partial block mode as described in the OpenPGP draft.
@ -2073,19 +2008,6 @@ iobuf_set_partial_block_mode( IOBUF a, size_t len )
}
/****************
* Checks whether the stream is in block mode
* Note: This does not work if other filters are pushed on the stream.
*/
int
iobuf_in_block_mode( IOBUF a )
{
if( a && a->filter == block_filter )
return 1; /* yes */
return 0; /* no */
}
/****************
* Same as fgets() but if the buffer is too short a larger one will
* be allocated up to some limit *max_length.