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 /* 24 * rusers_simple.c 25 * These are the "easy to use" interfaces to rusers. 26 * 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* 32 * Copyright (c) 2018, Joyent, Inc. 33 */ 34 35 #include <string.h> 36 #include <rpc/rpc.h> 37 #include <rpcsvc/rusers.h> 38 #include <stdlib.h> 39 40 int 41 rusers3(host, uap) 42 char *host; 43 utmp_array *uap; 44 { 45 struct utmpidlearr up; 46 47 if (rpc_call(host, RUSERSPROG, RUSERSVERS_3, RUSERSPROC_NAMES, 48 xdr_void, (char *) NULL, 49 xdr_utmp_array, (char *) uap, (char *) NULL) != 0) { 50 /* 51 * If version 3 isn't available, try version 2. We'll have to 52 * convert a utmpidlearr structure into a utmp_array. 53 */ 54 up.uia_cnt = 0; 55 up.uia_arr = NULL; 56 if (rusers(host, &up) != 0) 57 return (-1); 58 else { 59 int i; 60 struct ru_utmp forsize; 61 rusers_utmp *rutp; 62 63 uap->utmp_array_val = (rusers_utmp *)malloc(up.uia_cnt 64 * sizeof (rusers_utmp)); 65 if (uap->utmp_array_val == NULL) { 66 xdr_free(xdr_utmpidlearr, (char *)&up); 67 return (-1); 68 } 69 uap->utmp_array_len = up.uia_cnt; 70 for (rutp = uap->utmp_array_val, i = 0; 71 i < up.uia_cnt; rutp++, i++) { 72 rutp->ut_line = (char *)malloc(sizeof 73 (forsize.ut_line)+1); 74 rutp->ut_user = (char *)malloc(sizeof 75 (forsize.ut_name)+1); 76 rutp->ut_host = (char *)malloc(sizeof 77 (forsize.ut_host)+1); 78 if (rutp->ut_line == NULL || 79 rutp->ut_user == NULL || 80 rutp->ut_host == NULL) { 81 82 while (--rutp >= uap->utmp_array_val) { 83 free(rutp->ut_line); 84 free(rutp->ut_user); 85 free(rutp->ut_host); 86 } 87 free(uap->utmp_array_val); 88 xdr_free(xdr_utmpidlearr, (char *)&up); 89 return (-1); 90 } 91 (void) strncpy(rutp->ut_line, 92 up.uia_arr[i]->ui_utmp.ut_line, 93 sizeof (forsize.ut_line)+1); 94 (void) strncpy(rutp->ut_user, 95 up.uia_arr[i]->ui_utmp.ut_name, 96 sizeof (forsize.ut_name)+1); 97 (void) strncpy(rutp->ut_host, 98 up.uia_arr[i]->ui_utmp.ut_host, 99 sizeof (forsize.ut_host)+1); 100 rutp->ut_idle = up.uia_arr[i]->ui_idle; 101 rutp->ut_time = up.uia_arr[i]->ui_utmp.ut_time; 102 rutp->ut_type = RUSERS_USER_PROCESS; 103 /* assume this */ 104 } 105 xdr_free(xdr_utmpidlearr, (char *)&up); 106 } 107 } 108 return (0); 109 } 110 111 int 112 rnusers(host) 113 char *host; 114 { 115 int nusers; 116 117 if (rpc_call(host, RUSERSPROG, RUSERSVERS_3, RUSERSPROC_NUM, 118 xdr_void, (char *) NULL, 119 xdr_u_int, (char *) &nusers, (char *) NULL) != 0) { 120 if (rpc_call(host, RUSERSPROG, RUSERSVERS_IDLE, RUSERSPROC_NUM, 121 xdr_void, (char *) NULL, 122 xdr_u_int, (char *) &nusers, (char *) NULL) != 0) 123 return (-1); 124 } 125 return (nusers); 126 } 127 128 enum clnt_stat 129 rusers(host, up) 130 char *host; 131 struct utmpidlearr *up; 132 { 133 return (rpc_call(host, RUSERSPROG, RUSERSVERS_IDLE, RUSERSPROC_NAMES, 134 xdr_void, (char *) NULL, 135 xdr_utmpidlearr, (char *) up, (char *) NULL)); 136 } 137 138