2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1993, John Brezak
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/types.h>
38 #include <sys/socket.h>
41 #include <rpc/pmap_clnt.h>
42 #include <rpcsvc/rnusers.h>
44 #include <arpa/inet.h>
54 #define MAX_INT 0x7fffffff
61 static struct host_list {
62 struct host_list *next;
67 search_host(struct in_addr addr)
74 for (hp = hosts; hp != NULL; hp = hp->next) {
75 if (hp->addr.s_addr == addr.s_addr)
82 remember_host(struct in_addr addr)
86 if ((hp = (struct host_list *)malloc(sizeof(struct host_list))) == NULL)
88 hp->addr.s_addr = addr.s_addr;
94 rusers_reply(void *replyp, struct sockaddr_in *raddrp)
98 char date[32], idle_time[64], remote[64];
102 int days, hours, minutes, seconds;
105 memcpy(up, replyp, sizeof(*up));
106 if (search_host(raddrp->sin_addr))
109 if (!allopt && up->utmpidlearr_len == 0)
112 hp = gethostbyaddr((char *)&raddrp->sin_addr.s_addr,
113 sizeof(struct in_addr), AF_INET);
117 host = inet_ntoa(raddrp->sin_addr);
120 printf("%-*s ", HOST_WIDTH, host);
122 for (x = 0; x < up->utmpidlearr_len; x++) {
123 time_t t = _int_to_time(up->utmpidlearr_val[x].ui_utmp.ut_time);
124 strncpy(date, &(ctime(&t)[4]), sizeof(date) - 1);
126 idle = up->utmpidlearr_val[x].ui_idle;
127 sprintf(idle_time, " :%02d", idle);
129 strcpy(idle_time, "??");
131 strcpy(idle_time, "");
134 days = seconds / (60 * 60 * 24);
135 seconds %= (60 * 60 * 24);
136 hours = seconds / (60 * 60);
137 seconds %= (60 * 60);
138 minutes = seconds / 60;
141 sprintf(idle_time, "%d:%02d", minutes, seconds);
142 if (idle >= (60 * 60))
143 sprintf(idle_time, "%d:%02d:%02d",
144 hours, minutes, seconds);
145 if (idle >= (24 * 60 * 60))
146 sprintf(idle_time, "%d days, %d:%02d:%02d",
147 days, hours, minutes, seconds);
150 strncpy(remote, up->utmpidlearr_val[x].ui_utmp.ut_host,
152 if (strlen(remote) != 0)
153 sprintf(remote, "(%.16s)",
154 up->utmpidlearr_val[x].ui_utmp.ut_host);
157 printf("%-8.8s %*s:%-*.*s %-12.12s %6s %.18s\n",
158 up->utmpidlearr_val[x].ui_utmp.ut_name,
159 HOST_WIDTH, host, LINE_WIDTH, LINE_WIDTH,
160 up->utmpidlearr_val[x].ui_utmp.ut_line, date,
164 up->utmpidlearr_val[x].ui_utmp.ut_name);
169 remember_host(raddrp->sin_addr);
178 struct sockaddr_in addr;
182 hp = gethostbyname(host);
184 errx(1, "unknown host \"%s\"", host);
186 rusers_clnt = clnt_create(host, RUSERSPROG, RUSERSVERS_IDLE, "udp");
187 if (rusers_clnt == NULL)
188 errx(1, "%s", clnt_spcreateerror(""));
190 memset(&up, 0, sizeof(up));
191 tv.tv_sec = 15; /* XXX ?? */
193 if (clnt_call(rusers_clnt, RUSERSPROC_NAMES, (xdrproc_t)xdr_void, NULL,
194 (xdrproc_t)xdr_utmpidlearr, &up, tv) != RPC_SUCCESS)
195 errx(1, "%s", clnt_sperror(rusers_clnt, ""));
196 memcpy(&addr.sin_addr.s_addr, hp->h_addr, sizeof(addr.sin_addr.s_addr));
197 rusers_reply(&up, &addr);
198 clnt_destroy(rusers_clnt);
205 enum clnt_stat clnt_stat;
207 memset(&up, 0, sizeof(up));
208 clnt_stat = clnt_broadcast(RUSERSPROG, RUSERSVERS_IDLE,
209 RUSERSPROC_NAMES, (xdrproc_t)xdr_void, NULL,
210 (xdrproc_t)xdr_utmpidlearr, (char *)&up,
211 (resultproc_t)rusers_reply);
212 if (clnt_stat != RPC_SUCCESS && clnt_stat != RPC_TIMEDOUT)
213 errx(1, "%s", clnt_sperrno(clnt_stat));
220 fprintf(stderr, "usage: rusers [-al] [host ...]\n");
225 main(int argc, char *argv[])
229 while ((ch = getopt(argc, argv, "al")) != -1)
246 for (; optind < argc; optind++)
247 (void)onehost(argv[optind]);