static int read_char(dearmour_arg_t *arg,ops_error_t **errors,
ops_reader_info_t *rinfo,
ops_parse_cb_info_t *cbinfo,
ops_boolean_t skip)
{
unsigned char c[1];
do
{
if(arg->npushed_back)
{
c[0]=arg->pushed_back[--arg->npushed_back];
if(!arg->npushed_back)
{
free(arg->pushed_back);
arg->pushed_back=NULL;
}
}
/* XXX: should ops_stacked_read exist? Shouldn't this be a limited_read? */
else if(ops_stacked_read(c,1,errors,rinfo,cbinfo) != 1)
return -1;
}
while(skip && c[0] == '\r');
arg->prev_nl=arg->seen_nl;
arg->seen_nl=c[0] == '\n';
return c[0];
}
static int hash_reader(void *dest,size_t length,ops_error_t **errors,
ops_reader_info_t *rinfo,ops_parse_cb_info_t *cbinfo)
{
ops_hash_t *hash=ops_reader_get_arg(rinfo);
int r=ops_stacked_read(dest,length,errors,rinfo,cbinfo);
if(r <= 0)
return r;
hash->add(hash,dest,r);
return r;
}
static int sum16_reader(void *dest_,size_t length,ops_error_t **errors,
ops_reader_info_t *rinfo,ops_parse_cb_info_t *cbinfo)
{
const unsigned char *dest=dest_;
sum16_arg_t *arg=ops_reader_get_arg(rinfo);
int r=ops_stacked_read(dest_,length,errors,rinfo,cbinfo);
int n;
if(r < 0)
return r;
for(n=0 ; n < r ; ++n)
arg->sum=(arg->sum+dest[n])&0xffff;
return r;
}