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See ChangeLog: Sat Jan 9 16:02:23 CET 1999 Werner Koch

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This commit is contained in:
Werner Koch 1999-01-09 15:06:59 +00:00
parent 7d0efec7cf
commit 002b1a8632
35 changed files with 829 additions and 521 deletions
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60
util/iobuf.c
View file

@ -1,5 +1,5 @@
/* iobuf.c - file handling
* Copyright (C) 1998,1999 Free Software Foundation, Inc.
* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
@ -401,6 +401,24 @@ block_filter(void *opaque, int control, IOBUF chain, byte *buf, size_t *ret_len)
}
static void
print_chain( IOBUF a )
{
if( !DBG_IOBUF )
return;
for(; a; a = a->chain ) {
size_t dummy_len = 0;
const char *desc = "[none]";
if( a->filter )
a->filter( a->filter_ov, IOBUFCTRL_DESC, NULL,
(byte*)&desc, &dummy_len );
log_debug("iobuf chain: %d.%d `%s' filter_eof=%d start=%d len=%d\n",
a->no, a->subno, desc, a->filter_eof,
a->d.start, a->d.len );
}
}
/****************
* Allocate a new io buffer, with no function assigned.
@ -709,8 +727,7 @@ iobuf_push_filter( IOBUF a,
if( DBG_IOBUF ) {
log_debug("iobuf-%d.%d: push `%s'\n", a->no, a->subno, a->desc );
for(b=a; b; b = b->chain )
log_debug("\tchain: %d.%d `%s'\n", b->no, b->subno, b->desc );
print_chain( a );
}
/* now we can initialize the new function if we have one */
@ -804,14 +821,15 @@ underflow(IOBUF a)
return -1; /* EOF because a temp buffer can't do an underflow */
if( a->filter_eof ) {
if( a->chain ) {
if( a->chain && a->filter_eof == 1 ) {
IOBUF b = a->chain;
if( DBG_IOBUF )
log_debug("iobuf-%d.%d: pop `%s' in underflow\n",
a->no, a->subno, a->desc );
m_free(a->d.buf);
memcpy(a, b, sizeof *a);
m_free(b);
if( DBG_IOBUF )
log_debug("iobuf-%d.%d: popped filter in underflow\n",
a->no, a->subno );
print_chain(a);
}
else
a->filter_eof = 0;
@ -844,9 +862,17 @@ underflow(IOBUF a)
len = a->d.size;
rc = a->filter( a->filter_ov, IOBUFCTRL_UNDERFLOW, a->chain,
a->d.buf, &len );
if( DBG_IOBUF )
if( DBG_IOBUF ) {
log_debug("iobuf-%d.%d: underflow: req=%lu got=%lu rc=%d\n",
a->no, a->subno, (ulong)a->d.size, (ulong)len, rc );
#if 0
if( a->no == 7 ) {
print_string(stderr, a->d.buf, len, 0 );
putc('\n', stderr );
}
#endif
}
if( a->usage == 1 && rc == -1 ) { /* EOF: we can remove the filter */
size_t dummy_len;
@ -860,12 +886,16 @@ underflow(IOBUF a)
a->filter_eof = 1;
if( !len && a->chain ) {
IOBUF b = a->chain;
if( DBG_IOBUF )
log_debug("iobuf-%d.%d: pop `%s' in underflow (!len)\n",
a->no, a->subno, a->desc );
print_chain(a);
m_free(a->d.buf);
memcpy(a,b, sizeof *a);
m_free(b);
if( DBG_IOBUF )
log_debug("iobuf-%d.%d: popped filter in underflow (!len)\n",
a->no, a->subno );
print_chain(a);
}
}
else if( rc )
@ -1009,6 +1039,7 @@ iobuf_peek(IOBUF a, byte *buf, unsigned buflen )
if( a->filter_eof )
return -1;
if( !(a->d.start < a->d.len) ) {
if( underflow(a) == -1 )
return -1;
@ -1275,7 +1306,8 @@ iobuf_set_block_mode( IOBUF a, size_t n )
assert( a->usage == 1 || a->usage == 2 );
ctx->usage = a->usage;
if( !n ) {
log_debug("pop_filter called in set_block_mode - please report\n");
if( a->usage == 1 )
log_debug("pop_filter called in set_block_mode - please report\n");
pop_filter(a, block_filter, NULL );
}
else {
@ -1296,7 +1328,9 @@ iobuf_set_partial_block_mode( IOBUF a, size_t len )
assert( a->usage == 1 || a->usage == 2 );
ctx->usage = a->usage;
if( !len ) {
log_debug("pop_filter called in set_partial_block_mode - please report\n");
if( a->usage == 1 )
log_debug("pop_filter called in set_partial_block_mode"
" - please report\n");
pop_filter(a, block_filter, NULL );
}
else {