2 * Copyright (C) 1994, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
6 * $Log: odr_choice.c,v $
7 * Revision 1.3 1995-03-08 12:12:22 quinn
8 * Added better error checking.
10 * Revision 1.2 1995/02/09 15:51:48 quinn
13 * Revision 1.1 1995/02/07 17:52:59 quinn
14 * A damn mess, but now things work, I think.
20 int odr_choice(ODR o, Odr_arm arm[], void *p, int *which)
22 int i, cl = -1, tg, cn;
26 if (o->direction != ODR_DECODE && !*(char**)p)
28 for (i = 0; arm[i].fun; i++)
30 if (o->direction == ODR_DECODE)
31 *which = arm[i].which;
32 else if (*which != arm[i].which)
35 if (arm[i].tagmode != ODR_NONE)
37 if (o->direction == ODR_DECODE && cl < 0)
39 if (ber_dectag(o->bp, &cl, &tg, &cn) <= 0)
42 else if (o->direction != ODR_DECODE)
47 if (tg == arm[i].tag && cl == arm[i].class)
49 if (arm[i].tagmode == ODR_IMPLICIT)
51 odr_implicit_settag(o, cl, tg);
52 return (*arm[i].fun)(o, p, 0);
55 if (!odr_constructed_begin(o, p, cl, tg))
57 return (*arm[i].fun)(o, p, 0) &&
58 odr_constructed_end(o);
61 else /* no tagging. Have to poll type */
62 if ((*arm[i].fun)(o, p, 0))