/* $OpenBSD: bcode.h,v 1.2 2003/09/19 19:05:47 otto Exp $ */ /* * Copyright (c) 2003, Otto Moerbeek * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ #include #include struct number { BIGNUM *number; u_int scale; }; enum stacktype { BCODE_NONE, BCODE_NUMBER, BCODE_STRING }; enum bcode_compare { BCODE_EQUAL, BCODE_NOT_EQUAL, BCODE_LESS, BCODE_NOT_LESS, BCODE_GREATER, BCODE_NOT_GREATER }; struct array; struct value { union { struct number *num; char *string; } u; struct array *array; enum stacktype type; }; struct array { struct value *data; size_t size; }; struct stack { struct value *stack; int sp; int size; }; struct source; struct vtable { int (*readchar)(struct source *); int (*unreadchar)(struct source *); char *(*readline)(struct source *); void (*free)(struct source *); }; struct source { struct vtable *vtable; union { FILE *stream; struct { u_char *buf; size_t pos; } string; } u; int lastchar; }; void init_bmachine(void); void reset_bmachine(struct source *); void scale_number(BIGNUM *, int); void normalize(struct number *, u_int); void eval(void); void pn(const char *, const struct number *); void pbn(const char *, const BIGNUM *); void negate(struct number *); void split_number(const struct number *, BIGNUM *, BIGNUM *); void bmul_number(struct number *, struct number *, struct number *); extern BIGNUM zero;