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 * Copyright 1996 Sun Microsystems, Inc. All Rights Reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <stdlib.h> 29 #include <stdio.h> 30 #include <sys/types.h> 31 #include <sys/socket.h> 32 #include <netinet/in.h> 33 #include <arpa/inet.h> 34 35 #include "impl.h" 36 #include "error.h" 37 #include "trace.h" 38 #include "pdu.h" 39 40 #include "pagent.h" 41 #include "subtree.h" 42 43 44 /***** STATIC VARIABLES *****/ 45 46 /* the agent list */ 47 Agent *first_agent = NULL; 48 49 50 /***** STATIC FUNCTIONS *****/ 51 52 static void agent_free(Agent *ap); 53 54 55 /****************************************************************/ 56 trace_agents()57void trace_agents() 58 { 59 Agent *ap; 60 61 62 trace("AGENTS:\n"); 63 for(ap = first_agent; ap; ap = ap->next_agent) 64 { 65 trace("\t%-30s %-30s %8d\n", 66 ap->name, 67 address_string(&(ap->address)), 68 ap->timeout); 69 } 70 trace("\n"); 71 } 72 73 74 /****************************************************************/ 75 76 /* We must invoke subtree_list_delete() before invoking */ 77 /* this function because the first_agent_subtree member */ 78 /* of the agent structures should be NULL */ 79 agent_list_delete()80void agent_list_delete() 81 { 82 Agent *ap = first_agent; 83 Agent *next; 84 85 86 while(ap) 87 { 88 next = ap->next_agent; 89 90 agent_free(ap); 91 92 ap = next; 93 } 94 95 first_agent = NULL; 96 97 return; 98 } 99 100 101 /****************************************************************/ 102 103 /* The fisrt_agent_subtree member of the agent */ 104 /* structure should be NULL */ 105 agent_free(Agent * ap)106static void agent_free(Agent *ap) 107 { 108 if(ap == NULL) 109 { 110 return; 111 } 112 113 if(ap->first_agent_subtree) 114 { 115 error("BUG: agent_free(): first_agent_subtree not NULL"); 116 } 117 118 free(ap->name); 119 free(ap); 120 121 return; 122 } 123 124 /****************************************************************/ 125 126 /* agent_find() is used to check if we have not */ 127 /* two SNMP agents registered on the same UDP port */ 128 agent_find(Address * address)129Agent *agent_find(Address *address) 130 { 131 Agent *ap; 132 133 134 for(ap = first_agent; ap; ap = ap->next_agent) 135 { 136 if(ap->address.sin_port == address->sin_port) 137 { 138 return ap; 139 } 140 } 141 142 return NULL; 143 } 144 145 146 /****************************************************************/ 147 148