int odr_peektag(ODR o, int *zclass, int *tag, int *cons) { if (o->direction != ODR_DECODE) { odr_seterror(o, OOTHER, 48); return 0; } if (ODR_STACK_NOT_EMPTY(o) && !odr_constructed_more(o)) return 0; if (ber_dectag(o->bp, zclass, tag, cons, odr_max(o)) <= 0) { odr_seterror(o, OREQUIRED, 49); return 0; } return 1; }
int odr_write(ODR o, const char *buf, int bytes) { if (bytes < 0 || o->op->pos > INT_MAX - bytes) { odr_seterror(o, OSPACE, 40); return -1; } if (o->op->pos + bytes >= o->op->size && odr_grow_block(o, bytes)) { odr_seterror(o, OSPACE, 40); return -1; } memcpy(o->op->buf + o->op->pos, buf, bytes); o->op->pos += bytes; if (o->op->pos > o->op->top) o->op->top = o->op->pos; return 0; }
int odr_missing(ODR o, int opt, const char *name) { if (o->error) return 0; if (!opt) { odr_seterror(o, OREQUIRED, 53); odr_setelement(o, name); } return opt; }
int odr_write(ODR o, unsigned char *buf, int bytes) { if (o->pos + bytes >= o->size && odr_grow_block(o, bytes)) { odr_seterror(o, OSPACE, 40); return -1; } memcpy(o->buf + o->pos, buf, bytes); o->pos += bytes; if (o->pos > o->top) o->top = o->pos; return 0; }
int odr_seek(ODR o, int whence, int offset) { if (whence == ODR_S_CUR) offset += o->pos; else if (whence == ODR_S_END) offset += o->top; if (offset > o->size && odr_grow_block(o, offset - o->size)) { odr_seterror(o, OSPACE, 41); return -1; } o->pos = offset; return 0; }
int ber_integer(ODR o, Odr_int *val) { int res; switch (o->direction) { case ODR_DECODE: if ((res = ber_decinteger(o->bp, val, odr_max(o))) <= 0) { odr_seterror(o, OPROTO, 50); return 0; } o->bp += res; return 1; case ODR_ENCODE: if ((res = ber_encinteger(o, *val)) < 0) return 0; return 1; case ODR_PRINT: return 1; default: odr_seterror(o, OOTHER, 51); return 0; } }
int ber_any(ODR o, Odr_any **p) { int res; switch (o->direction) { case ODR_DECODE: if ((res = completeBER(o->bp, odr_max(o))) <= 0) /* FIX THIS */ { odr_seterror(o, OPROTO, 2); return 0; } (*p)->buf = (unsigned char *)odr_malloc(o, res); memcpy((*p)->buf, o->bp, res); (*p)->len = (*p)->size = res; o->bp += res; return 1; case ODR_ENCODE: if (odr_write(o, (*p)->buf, (*p)->len) < 0) return 0; return 1; default: odr_seterror(o, OOTHER, 3); return 0; } }
int ber_bitstring(ODR o, Odr_bitmask *p, int cons) { int res, len; const char *base; switch (o->direction) { case ODR_DECODE: if ((res = ber_declen(o->op->bp, &len, odr_max(o))) < 0) { odr_seterror(o, OPROTO, 4); return 0; } o->op->bp += res; if (cons) /* fetch component strings */ { base = o->op->bp; while (odp_more_chunks(o, base, len)) if (!odr_bitstring(o, &p, 0, 0)) return 0; return 1; } /* primitive bitstring */ if (len < 0) { odr_seterror(o, OOTHER, 5); return 0; } if (len == 0) return 1; if (len - 1 > ODR_BITMASK_SIZE) { odr_seterror(o, OOTHER, 6); return 0; } if (len > odr_max(o)) { odr_seterror(o, OOTHER, 7); return 0; } o->op->bp++; /* silently ignore the unused-bits field */ len--; memcpy(p->bits + p->top + 1, o->op->bp, len); p->top += len; o->op->bp += len; return 1; case ODR_ENCODE: if ((res = ber_enclen(o, p->top + 2, 5, 0)) < 0) return 0; if (odr_putc(o, 0) < 0) /* no unused bits here */ return 0; if (p->top < 0) return 1; if (odr_write(o, p->bits, p->top + 1) < 0) return 0; return 1; case ODR_PRINT: return 1; default: odr_seterror(o, OOTHER, 8); return 0; } }