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 * Copyright 2002 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * University Copyright- Copyright (c) 1982, 1986, 1988 32 * The Regents of the University of California 33 * All Rights Reserved 34 * 35 * University Acknowledgment- Portions of this document are derived from 36 * software developed by the University of California, Berkeley, and its 37 * contributors. 38 */ 39 40 #include <sys/param.h> 41 42 #include <dirent.h> 43 #include <fcntl.h> 44 #include <stdio.h> 45 #include <stdlib.h> 46 #include <strings.h> 47 #include <time.h> 48 #include <unistd.h> 49 50 #include <protocols/rwhod.h> 51 52 static DIR *dirp; 53 54 static struct whod wd; 55 #define NUSERS 1000 56 static struct myutmp { 57 char myhost[32]; 58 int myidle; 59 struct outmp myutmp; 60 } myutmp[NUSERS]; 61 static int utmpcmp(const void *, const void *); 62 static int nusers; 63 64 #define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we)) 65 #define RWHODIR "/var/spool/rwho" 66 /* 67 * this macro should be shared with ruptime. 68 */ 69 #define down(w, now) ((now) - (w)->wd_recvtime > 11 * 60) 70 71 static time_t now; 72 static int aflg = 0; 73 74 int 75 main(int argc, char **argv) 76 { 77 struct dirent *dp; 78 int cc, width; 79 register struct whod *w = &wd; 80 register struct whoent *we; 81 register struct myutmp *mp; 82 int f, n, i; 83 84 argc--, argv++; 85 again: 86 if (argc > 0 && strcmp(argv[0], "-a") == 0) { 87 argc--, argv++; 88 aflg++; 89 goto again; 90 } 91 (void) time(&now); 92 if (chdir(RWHODIR) < 0) { 93 perror(RWHODIR); 94 return (EXIT_FAILURE); 95 } 96 dirp = opendir("."); 97 if (dirp == NULL) { 98 perror(RWHODIR); 99 return (EXIT_FAILURE); 100 } 101 mp = myutmp; 102 while (dp = readdir(dirp)) { 103 if (dp->d_ino == 0) 104 continue; 105 if (strncmp(dp->d_name, "whod.", 5)) 106 continue; 107 f = open(dp->d_name, 0); 108 if (f < 0) 109 continue; 110 cc = read(f, (char *)&wd, sizeof (struct whod)); 111 if (cc < WHDRSIZE) { 112 (void) close(f); 113 continue; 114 } 115 if (down(w, now)) { 116 (void) close(f); 117 continue; 118 } 119 cc -= WHDRSIZE; 120 we = w->wd_we; 121 for (n = cc / sizeof (struct whoent); n > 0; n--) { 122 if (aflg == 0 && we->we_idle >= 60*60) { 123 we++; 124 continue; 125 } 126 if (nusers >= NUSERS) { 127 (void) printf("too many users\n"); 128 return (EXIT_FAILURE); 129 } 130 mp->myutmp = we->we_utmp; mp->myidle = we->we_idle; 131 (void) strncpy(mp->myhost, w->wd_hostname, 132 sizeof (mp->myhost)); 133 nusers++; we++; mp++; 134 } 135 (void) close(f); 136 } 137 qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp); 138 mp = myutmp; 139 width = 0; 140 for (i = 0; i < nusers; i++) { 141 int j = strlen(mp->myhost) + 1 + strlen(mp->myutmp.out_line); 142 if (j > width) 143 width = j; 144 mp++; 145 } 146 mp = myutmp; 147 for (i = 0; i < nusers; i++) { 148 char buf[BUFSIZ]; 149 (void) snprintf(buf, BUFSIZ, "%.*s:%.*s", 150 sizeof (mp->myhost), mp->myhost, 151 sizeof (mp->myutmp.out_line), mp->myutmp.out_line); 152 (void) printf("%-8.*s %-*s %.12s", 153 sizeof (mp->myutmp.out_name), mp->myutmp.out_name, 154 width, buf, 155 ctime((time_t *)&mp->myutmp.out_time) + 4); 156 mp->myidle /= 60; 157 if (mp->myidle) { 158 if (aflg) { 159 if (mp->myidle >= 100*60) 160 mp->myidle = 100*60 - 1; 161 if (mp->myidle >= 60) 162 (void) printf(" %2d", mp->myidle / 60); 163 else 164 (void) fputs(" ", stdout); 165 } else 166 (void) printf(" "); 167 (void) printf(":%02d", mp->myidle % 60); 168 } 169 (void) puts(""); 170 mp++; 171 } 172 return (EXIT_SUCCESS); 173 } 174 175 static int 176 utmpcmp(const void *p1, const void *p2) 177 { 178 const struct myutmp *u1 = p1, *u2 = p2; 179 int rc; 180 181 rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name, 182 sizeof (u1->myutmp.out_name)); 183 if (rc != 0) 184 return (rc); 185 rc = strncmp(u1->myhost, u2->myhost, sizeof (u1->myhost)); 186 if (rc != 0) 187 return (rc); 188 return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line, 189 sizeof (u1->myutmp.out_line))); 190 } 191