1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * This is a non-recursive version of XDR routine used for db_index_entry 24 * type. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/syslog.h> 31 #include <stdio.h> 32 #include <rpc/types.h> 33 #include <rpc/xdr.h> 34 #include <memory.h> 35 #include "db_index_entry_c.h" 36 #include "db_table_c.h" 37 38 bool_t 39 xdr_db_index_entry(xdrs, objp) 40 register XDR *xdrs; 41 db_index_entry *objp; 42 { 43 bool_t more_data; 44 register db_index_entry *ep = objp; 45 register db_index_entry *loc; 46 register db_index_entry *freeptr = NULL; 47 48 for (;;) { 49 if (!xdr_u_long(xdrs, &ep->hashval)) 50 return (FALSE); 51 if (!xdr_pointer(xdrs, (char **)&ep->key, sizeof (item), 52 (xdrproc_t) xdr_item)) 53 return (FALSE); 54 if (!xdr_entryp(xdrs, &ep->location)) 55 return (FALSE); 56 if (!xdr_nullptr(xdrs, &ep->next_result)) 57 return (FALSE); 58 59 /* 60 * The following code replaces the call to 61 * xdr_pointer( 62 * xdrs, 63 * (char **)&ep->next, 64 * sizeof (db_index_entry), 65 * (xdrproc_t) xdr_db_index_entry)) 66 * 67 * It's a modified version of xdr_refer.c from the rpc library: 68 * @(#)xdr_refer.c 1.8 92/07/20 SMI 69 */ 70 71 72 /* 73 * the following assignment to more_data is only useful when 74 * encoding and freeing. When decoding, more_data will be 75 * filled by the xdr_bool() routine. 76 */ 77 more_data = (ep->next != NULL); 78 if (! xdr_bool(xdrs, &more_data)) 79 return (FALSE); 80 if (! more_data) { 81 ep->next = NULL; 82 break; 83 } 84 85 loc = ep->next; 86 87 88 switch (xdrs->x_op) { 89 case XDR_DECODE: 90 if (loc == NULL) { 91 ep->next = loc = (db_index_entry *) 92 mem_alloc(sizeof (db_index_entry)); 93 if (loc == NULL) { 94 syslog(LOG_ERR, 95 "xdr_db_index_entry: mem_alloc failed"); 96 return (FALSE); 97 } 98 memset(loc, 0, sizeof (db_index_entry)); 99 } 100 break; 101 case XDR_FREE: 102 if (freeptr != NULL) { 103 mem_free(freeptr, sizeof (db_index_entry)); 104 } else 105 ep->next = NULL; 106 freeptr = loc; 107 break; 108 } 109 110 if (loc == NULL) 111 break; 112 ep = loc; 113 } /* for loop */ 114 115 if ((freeptr != NULL) && (xdrs->x_op == XDR_FREE)) { 116 mem_free(freeptr, sizeof (db_index_entry)); 117 } 118 119 return (TRUE); 120 } 121 122 123 bool_t 124 xdr_db_index_entry_p(xdrs, objp) 125 register XDR *xdrs; 126 db_index_entry_p *objp; 127 { 128 129 if (!xdr_pointer(xdrs, (char **)objp, sizeof (db_index_entry), 130 (xdrproc_t) xdr_db_index_entry)) 131 return (FALSE); 132 return (TRUE); 133 } 134 135 136 137 bool_t 138 xdr_db_free_entry(xdrs, objp) 139 register XDR *xdrs; 140 db_free_entry *objp; 141 { 142 bool_t more_data; 143 register db_free_entry *ep = objp; 144 register db_free_entry *loc; 145 register db_free_entry *freeptr = NULL; 146 147 for (;;) { 148 if (!xdr_entryp(xdrs, &ep->where)) 149 return (FALSE); 150 151 /* 152 * The following code replaces the call to 153 * xdr_pointer( 154 * xdrs, 155 * (char **)&ep->next, 156 * sizeof (db_free_entry), 157 * (xdrproc_t) xdr_db_free_entry)) 158 * 159 * It's a modified version of xdr_refer.c from the rpc library: 160 * @(#)xdr_refer.c 1.8 92/07/20 SMI 161 */ 162 163 164 /* 165 * the following assignment to more_data is only useful when 166 * encoding and freeing. When decoding, more_data will be 167 * filled by the xdr_bool() routine. 168 */ 169 more_data = (ep->next != NULL); 170 if (! xdr_bool(xdrs, &more_data)) 171 return (FALSE); 172 if (! more_data) { 173 ep->next = NULL; 174 break; 175 } 176 177 loc = ep->next; 178 179 180 switch (xdrs->x_op) { 181 case XDR_DECODE: 182 if (loc == NULL) { 183 ep->next = loc = (db_free_entry *) 184 mem_alloc(sizeof (db_free_entry)); 185 if (loc == NULL) { 186 syslog(LOG_ERR, 187 "db_free_entry: mem_alloc failed"); 188 return (FALSE); 189 } 190 memset(loc, 0, sizeof (db_free_entry)); 191 } 192 break; 193 case XDR_FREE: 194 if (freeptr != NULL) { 195 mem_free(freeptr, sizeof (db_free_entry)); 196 } else 197 ep->next = NULL; 198 freeptr = loc; 199 break; 200 } 201 202 if (loc == NULL) 203 break; 204 ep = loc; 205 } /* for loop */ 206 207 if ((freeptr != NULL) && (xdrs->x_op == XDR_FREE)) { 208 mem_free(freeptr, sizeof (db_free_entry)); 209 } 210 return (TRUE); 211 } 212