/********************************************************************** * Copyright (c) Digital Equipment Corporation 1984, 1985, 1986. * * All Rights Reserved. * * Reference "/usr/src/COPYRIGHT" for applicable restrictions. * **********************************************************************/ #ifndef lint static char sccsid[] = "@(#)rwho.c 3.1 8/18/87"; #endif /* * Based on * "@(#)rwho.c 4.7 (Berkeley) 83/07/01"; */ #include <sys/param.h> #include <stdio.h> #ifndef pdp11 #include <sys/dir.h> #else pdp11 #include <ndir.h> #endif pdp11 #include <protocols/rwhod.h> DIR *etc; struct whod wd; int utmpcmp(); #ifndef pdp11 #define NUSERS 1000 #else pdp11 #define NUSERS 700 #endif pdp11 struct myutmp { char myhost[32]; int myidle; #ifndef pdp11 struct outmp myutmp; #else pdp11 struct outmp Myutmp; #endif pdp11 } myutmp[NUSERS]; int nusers; #define WHDRSIZE (sizeof (wd) - sizeof (wd.wd_we)) #define RWHODIR "/usr/spool/rwho" char *ctime(), *strcpy(); long now; int aflg; main(argc, argv) int argc; char **argv; { struct direct *dp; int cc, width; register struct whod *w = &wd; register struct whoent *we; register struct myutmp *mp; int f, n, i; argc--, argv++; again: if (argc > 0 && !strcmp(argv[0], "-a")) { argc--, argv++; aflg++; goto again; } (void) time(&now); if (chdir(RWHODIR) < 0) { perror(RWHODIR); exit(1); } etc = opendir("."); if (etc == NULL) { perror("/etc"); exit(1); } mp = myutmp; while (dp = readdir(etc)) { if (dp->d_ino == 0) continue; if (strncmp(dp->d_name, "whod.", 5)) continue; f = open(dp->d_name, 0); if (f < 0) continue; cc = read(f, (char *)&wd, sizeof (struct whod)); if (cc < WHDRSIZE) { (void) close(f); continue; } if (now - w->wd_recvtime > 5 * 60) { (void) close(f); continue; } cc -= WHDRSIZE; we = w->wd_we; for (n = cc / sizeof (struct whoent); n > 0; n--) { if (aflg == 0 && we->we_idle >= 60*60) { we++; continue; } if (nusers >= NUSERS) { printf("too many users\n"); exit(1); } #ifndef pdp11 mp->myutmp = we->we_utmp; mp->myidle = we->we_idle; #else pdp11 mp->Myutmp = we->we_utmp; mp->myidle = we->we_idle; #endif pdp11 (void) strcpy(mp->myhost, w->wd_hostname); nusers++; we++; mp++; } (void) close(f); } qsort((char *)myutmp, nusers, sizeof (struct myutmp), utmpcmp); mp = myutmp; width = 0; for (i = 0; i < nusers; i++) { #ifndef pdp11 int j = strlen(mp->myhost) + 1 + strlen(mp->myutmp.out_line); #else pdp11 int j = strlen(mp->myhost) + 1 + strlen(mp->Myutmp.out_line); #endif pdp11 if (j > width) width = j; mp++; } mp = myutmp; for (i = 0; i < nusers; i++) { char buf[128]; #ifndef pdp11 sprintf(buf, "%s:%s", mp->myhost, mp->myutmp.out_line); printf("%-8.8s %-*s %.12s", mp->myutmp.out_name, width, buf, ctime((time_t *)&mp->myutmp.out_time)+4); #else pdp11 sprintf(buf, "%s:%s", mp->myhost, mp->Myutmp.out_line); printf("%-8.8s %-*s %.12s", mp->Myutmp.out_name, width, buf, ctime((time_t *)&mp->Myutmp.out_time)+4); #endif pdp11 mp->myidle /= 60; if (mp->myidle) { if (aflg) { if (mp->myidle >= 100*60) mp->myidle = 100*60 - 1; if (mp->myidle >= 60) printf(" %2d", mp->myidle / 60); else printf(" "); } else printf(" "); printf(":%02d", mp->myidle % 60); } printf("\n"); mp++; } exit(0); } utmpcmp(u1, u2) struct myutmp *u1, *u2; { int rc; #ifndef pdp11 rc = strncmp(u1->myutmp.out_name, u2->myutmp.out_name, 8); #else pdp11 rc = strncmp(u1->Myutmp.out_name, u2->Myutmp.out_name, 8); #endif pdp11 if (rc) return (rc); rc = strncmp(u1->myhost, u2->myhost, 8); if (rc) return (rc); #ifndef pdp11 return (strncmp(u1->myutmp.out_line, u2->myutmp.out_line, 8)); #else pdp11 return (strncmp(u1->Myutmp.out_line, u2->Myutmp.out_line, 8)); #endif pdp11 }