1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright (c) 1994, by Sun Microsytems, Inc. 24*0Sstevel@tonic-gate */ 25*0Sstevel@tonic-gate 26*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 27*0Sstevel@tonic-gate 28*0Sstevel@tonic-gate #include "libtnf.h" 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate /* 31*0Sstevel@tonic-gate * 32*0Sstevel@tonic-gate */ 33*0Sstevel@tonic-gate 34*0Sstevel@tonic-gate static struct slotinfo *get_slotinfo(tnf_datum_t); 35*0Sstevel@tonic-gate static struct slot * get_slot_named(struct slotinfo *, char *); 36*0Sstevel@tonic-gate static struct slot * get_slot_indexed(struct slotinfo *, unsigned); 37*0Sstevel@tonic-gate static tnf_datum_t get_slot(tnf_datum_t, struct slot *); 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate /* 40*0Sstevel@tonic-gate * 41*0Sstevel@tonic-gate */ 42*0Sstevel@tonic-gate 43*0Sstevel@tonic-gate void 44*0Sstevel@tonic-gate _tnf_check_slots(tnf_datum_t datum) 45*0Sstevel@tonic-gate { 46*0Sstevel@tonic-gate struct taginfo *info; 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate CHECK_DATUM(datum); 49*0Sstevel@tonic-gate 50*0Sstevel@tonic-gate info = DATUM_INFO(datum); 51*0Sstevel@tonic-gate 52*0Sstevel@tonic-gate /* Must be an aggregate */ 53*0Sstevel@tonic-gate if (!(INFO_STRUCT(info) || INFO_ARRAY(info))) 54*0Sstevel@tonic-gate _tnf_error(DATUM_TNF(datum), TNF_ERR_TYPEMISMATCH); 55*0Sstevel@tonic-gate } 56*0Sstevel@tonic-gate 57*0Sstevel@tonic-gate /* 58*0Sstevel@tonic-gate * Helpers 59*0Sstevel@tonic-gate */ 60*0Sstevel@tonic-gate 61*0Sstevel@tonic-gate static struct slotinfo * 62*0Sstevel@tonic-gate get_slotinfo(tnf_datum_t datum) 63*0Sstevel@tonic-gate { 64*0Sstevel@tonic-gate struct taginfo *info, *base_info; 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate info = DATUM_INFO(datum); 67*0Sstevel@tonic-gate base_info = INFO_DERIVED(info)? info->base: info; 68*0Sstevel@tonic-gate 69*0Sstevel@tonic-gate /* XXX base must not be a scalar tag */ 70*0Sstevel@tonic-gate if (INFO_SCALAR(base_info)) 71*0Sstevel@tonic-gate _tnf_error(DATUM_TNF(datum), TNF_ERR_BADTNF); 72*0Sstevel@tonic-gate 73*0Sstevel@tonic-gate return (base_info->slotinfo); 74*0Sstevel@tonic-gate } 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate static struct slot * 77*0Sstevel@tonic-gate get_slot_indexed(struct slotinfo *slotinfo, unsigned index) 78*0Sstevel@tonic-gate { 79*0Sstevel@tonic-gate unsigned count; 80*0Sstevel@tonic-gate 81*0Sstevel@tonic-gate count = slotinfo->slot_count; 82*0Sstevel@tonic-gate if (index >= count) 83*0Sstevel@tonic-gate return (NULL); 84*0Sstevel@tonic-gate else 85*0Sstevel@tonic-gate return (&slotinfo->slots[index]); 86*0Sstevel@tonic-gate } 87*0Sstevel@tonic-gate 88*0Sstevel@tonic-gate static struct slot * 89*0Sstevel@tonic-gate get_slot_named(struct slotinfo *slotinfo, char *name) 90*0Sstevel@tonic-gate { 91*0Sstevel@tonic-gate unsigned count, i; 92*0Sstevel@tonic-gate 93*0Sstevel@tonic-gate count = slotinfo->slot_count; 94*0Sstevel@tonic-gate 95*0Sstevel@tonic-gate for (i = 0; i < count; i++) 96*0Sstevel@tonic-gate if (strcmp(name, slotinfo->slots[i].slot_name) == 0) 97*0Sstevel@tonic-gate return (&slotinfo->slots[i]); 98*0Sstevel@tonic-gate 99*0Sstevel@tonic-gate return (NULL); 100*0Sstevel@tonic-gate } 101*0Sstevel@tonic-gate 102*0Sstevel@tonic-gate static tnf_datum_t 103*0Sstevel@tonic-gate get_slot(tnf_datum_t datum, struct slot *slot) 104*0Sstevel@tonic-gate { 105*0Sstevel@tonic-gate if (slot == NULL) { 106*0Sstevel@tonic-gate _tnf_error(DATUM_TNF(datum), TNF_ERR_BADSLOT); /* XXX */ 107*0Sstevel@tonic-gate return (TNF_DATUM_NULL); 108*0Sstevel@tonic-gate 109*0Sstevel@tonic-gate } else if (INFO_TAGGED(slot->slot_type)) { 110*0Sstevel@tonic-gate TNF *tnf; 111*0Sstevel@tonic-gate tnf_ref32_t *rec; 112*0Sstevel@tonic-gate 113*0Sstevel@tonic-gate tnf = DATUM_TNF(datum); 114*0Sstevel@tonic-gate /* LINTED pointer cast may result in improper alignment */ 115*0Sstevel@tonic-gate rec = _GET_REF32(tnf, (tnf_ref32_t *) 116*0Sstevel@tonic-gate (DATUM_VAL(datum) + slot->slot_offset)); 117*0Sstevel@tonic-gate /* NULL slots are allowed */ 118*0Sstevel@tonic-gate return ((rec == TNF_NULL)? TNF_DATUM_NULL : 119*0Sstevel@tonic-gate RECORD_DATUM(tnf, rec)); 120*0Sstevel@tonic-gate 121*0Sstevel@tonic-gate } else /* inline */ 122*0Sstevel@tonic-gate return DATUM(slot->slot_type, 123*0Sstevel@tonic-gate DATUM_VAL(datum) + slot->slot_offset); 124*0Sstevel@tonic-gate } 125*0Sstevel@tonic-gate 126*0Sstevel@tonic-gate /* 127*0Sstevel@tonic-gate * 128*0Sstevel@tonic-gate */ 129*0Sstevel@tonic-gate 130*0Sstevel@tonic-gate unsigned 131*0Sstevel@tonic-gate tnf_get_slot_count(tnf_datum_t datum) 132*0Sstevel@tonic-gate { 133*0Sstevel@tonic-gate struct slotinfo *slotinfo; 134*0Sstevel@tonic-gate 135*0Sstevel@tonic-gate CHECK_SLOTS(datum); 136*0Sstevel@tonic-gate 137*0Sstevel@tonic-gate slotinfo = get_slotinfo(datum); 138*0Sstevel@tonic-gate return (slotinfo->slot_count); 139*0Sstevel@tonic-gate } 140*0Sstevel@tonic-gate 141*0Sstevel@tonic-gate /* 142*0Sstevel@tonic-gate * 143*0Sstevel@tonic-gate */ 144*0Sstevel@tonic-gate 145*0Sstevel@tonic-gate unsigned 146*0Sstevel@tonic-gate tnf_get_slot_index(tnf_datum_t datum, char *name) 147*0Sstevel@tonic-gate { 148*0Sstevel@tonic-gate struct slotinfo *slotinfo; 149*0Sstevel@tonic-gate struct slot *slot; 150*0Sstevel@tonic-gate 151*0Sstevel@tonic-gate CHECK_SLOTS(datum); 152*0Sstevel@tonic-gate 153*0Sstevel@tonic-gate slotinfo = get_slotinfo(datum); 154*0Sstevel@tonic-gate slot = get_slot_named(slotinfo, name); 155*0Sstevel@tonic-gate 156*0Sstevel@tonic-gate if (slot == NULL) { 157*0Sstevel@tonic-gate _tnf_error(DATUM_TNF(datum), TNF_ERR_BADSLOT); /* XXX */ 158*0Sstevel@tonic-gate return (((unsigned)-1)); 159*0Sstevel@tonic-gate } else 160*0Sstevel@tonic-gate return (((char *)slot - (char *)&slotinfo->slots[0]) 161*0Sstevel@tonic-gate / sizeof (struct slot)); 162*0Sstevel@tonic-gate } 163*0Sstevel@tonic-gate 164*0Sstevel@tonic-gate /* 165*0Sstevel@tonic-gate * 166*0Sstevel@tonic-gate */ 167*0Sstevel@tonic-gate 168*0Sstevel@tonic-gate char * 169*0Sstevel@tonic-gate tnf_get_slot_name(tnf_datum_t datum, unsigned index) 170*0Sstevel@tonic-gate { 171*0Sstevel@tonic-gate struct slotinfo *slotinfo; 172*0Sstevel@tonic-gate struct slot *slot; 173*0Sstevel@tonic-gate 174*0Sstevel@tonic-gate CHECK_SLOTS(datum); 175*0Sstevel@tonic-gate 176*0Sstevel@tonic-gate slotinfo = get_slotinfo(datum); 177*0Sstevel@tonic-gate slot = get_slot_indexed(slotinfo, index); 178*0Sstevel@tonic-gate 179*0Sstevel@tonic-gate if (slot == NULL) { 180*0Sstevel@tonic-gate _tnf_error(DATUM_TNF(datum), TNF_ERR_BADSLOT); /* XXX */ 181*0Sstevel@tonic-gate return ((char *)NULL); 182*0Sstevel@tonic-gate } else 183*0Sstevel@tonic-gate return (slot->slot_name); 184*0Sstevel@tonic-gate } 185*0Sstevel@tonic-gate 186*0Sstevel@tonic-gate /* 187*0Sstevel@tonic-gate * 188*0Sstevel@tonic-gate */ 189*0Sstevel@tonic-gate 190*0Sstevel@tonic-gate tnf_datum_t 191*0Sstevel@tonic-gate tnf_get_slot_named(tnf_datum_t datum, char *name) 192*0Sstevel@tonic-gate { 193*0Sstevel@tonic-gate struct slotinfo *slotinfo; 194*0Sstevel@tonic-gate struct slot *slot; 195*0Sstevel@tonic-gate 196*0Sstevel@tonic-gate CHECK_SLOTS(datum); 197*0Sstevel@tonic-gate 198*0Sstevel@tonic-gate slotinfo = get_slotinfo(datum); 199*0Sstevel@tonic-gate slot = get_slot_named(slotinfo, name); 200*0Sstevel@tonic-gate 201*0Sstevel@tonic-gate return (get_slot(datum, slot)); 202*0Sstevel@tonic-gate } 203*0Sstevel@tonic-gate 204*0Sstevel@tonic-gate /* 205*0Sstevel@tonic-gate * 206*0Sstevel@tonic-gate */ 207*0Sstevel@tonic-gate 208*0Sstevel@tonic-gate tnf_datum_t 209*0Sstevel@tonic-gate tnf_get_slot_indexed(tnf_datum_t datum, unsigned index) 210*0Sstevel@tonic-gate { 211*0Sstevel@tonic-gate struct slotinfo *slotinfo; 212*0Sstevel@tonic-gate struct slot *slot; 213*0Sstevel@tonic-gate 214*0Sstevel@tonic-gate CHECK_SLOTS(datum); 215*0Sstevel@tonic-gate 216*0Sstevel@tonic-gate slotinfo = get_slotinfo(datum); 217*0Sstevel@tonic-gate slot = get_slot_indexed(slotinfo, index); 218*0Sstevel@tonic-gate 219*0Sstevel@tonic-gate return (get_slot(datum, slot)); 220*0Sstevel@tonic-gate } 221