From 8b6414e531c6f943c5d30e2bbdce75bedaf26f12 Mon Sep 17 00:00:00 2001 From: tedu Date: Thu, 24 Apr 2014 14:59:06 +0000 Subject: [PATCH] That is strength, boy! That is power! What is steel compared to the hand that wields it? Look at the strength in your body, the desire in your heart, I gave you this! Such a waste. Contemplate this on the tree of woe. --- usr.sbin/rwhod/Makefile | 6 - usr.sbin/rwhod/rwhod.8 | 145 ---------- usr.sbin/rwhod/rwhod.c | 615 ---------------------------------------- 3 files changed, 766 deletions(-) delete mode 100644 usr.sbin/rwhod/Makefile delete mode 100644 usr.sbin/rwhod/rwhod.8 delete mode 100644 usr.sbin/rwhod/rwhod.c diff --git a/usr.sbin/rwhod/Makefile b/usr.sbin/rwhod/Makefile deleted file mode 100644 index b84c753473f..00000000000 --- a/usr.sbin/rwhod/Makefile +++ /dev/null @@ -1,6 +0,0 @@ -# $OpenBSD: Makefile,v 1.3 1997/09/21 11:44:18 deraadt Exp $ - -PROG= rwhod -MAN= rwhod.8 - -.include diff --git a/usr.sbin/rwhod/rwhod.8 b/usr.sbin/rwhod/rwhod.8 deleted file mode 100644 index 1b9aeebe253..00000000000 --- a/usr.sbin/rwhod/rwhod.8 +++ /dev/null @@ -1,145 +0,0 @@ -.\" $OpenBSD: rwhod.8,v 1.18 2014/01/20 05:07:48 schwarze Exp $ -.\" -.\" Copyright (c) 1983, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" Redistribution and use in source and binary forms, with or without -.\" modification, are permitted provided that the following conditions -.\" are met: -.\" 1. Redistributions of source code must retain the above copyright -.\" notice, this list of conditions and the following disclaimer. -.\" 2. Redistributions in binary form must reproduce the above copyright -.\" notice, this list of conditions and the following disclaimer in the -.\" documentation and/or other materials provided with the distribution. -.\" 3. Neither the name of the University nor the names of its contributors -.\" may be used to endorse or promote products derived from this software -.\" without specific prior written permission. -.\" -.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND -.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE -.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS -.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) -.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY -.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF -.\" SUCH DAMAGE. -.\" -.\" from: @(#)rwhod.8 8.2 (Berkeley) 12/11/93 -.\" $OpenBSD: rwhod.8,v 1.18 2014/01/20 05:07:48 schwarze Exp $ -.\" -.Dd $Mdocdate: January 20 2014 $ -.Dt RWHOD 8 -.Os -.Sh NAME -.Nm rwhod -.Nd system status server -.Sh SYNOPSIS -.Nm rwhod -.Op Fl d -.Sh DESCRIPTION -.Nm -is the server which maintains the database used by the -.Xr rwho 1 -and -.Xr ruptime 1 -programs. -Its operation is predicated on the ability to -.Em broadcast -messages on a network. -.Pp -.Nm -operates as both a producer and consumer of status information. -As a producer of information it periodically -queries the state of the system and constructs -status messages which are broadcast on a network. -As a consumer of information, it listens for other -.Nm -servers' status messages, validating them, then recording -them in a collection of files located in the directory -.Pa /var/rwho . -.Pp -The options are as follows: -.Bl -tag -width Ds -.It Fl d -Turn on debug mode. -.El -.Pp -The server transmits and receives messages at the port indicated -in the ``who'' service specification; see -.Xr services 5 . -The messages sent and received, are of the form: -.Bd -literal -offset indent -struct outmp { - char out_line[8]; /* tty name */ - char out_name[8]; /* user id */ - int32_t out_time; /* time on */ -}; - -struct whod { - char wd_vers; - char wd_type; - char wd_fill[2]; - int32_t wd_sendtime; - int32_t wd_recvtime; - char wd_hostname[32]; - int32_t wd_loadav[3]; - int32_t wd_boottime; - struct whoent { - struct outmp we_utmp; - int32_t we_idle; - } wd_we[1024 / sizeof (struct whoent)]; -}; -.Ed -.Pp -All fields are converted to network byte order prior to -transmission. -The load averages are as calculated by the -.Xr w 1 -program, and represent load averages over the 5, 10, and 15 minute -intervals prior to a server's transmission; they are multiplied by 100 -for representation in an integer. -The host name included is that returned by -.Xr gethostname 3 -with any trailing domain name omitted. -The array at the end of the message contains information about -the users logged in to the sending machine. -This information includes the contents of the -.Xr utmp 5 -entry for each non-idle terminal line and a value indicating the -time in seconds since a character was last received on the terminal line. -.Pp -Messages received by the rwho server are discarded -unless they originated at an rwho server's port. -In addition, if the host's name, as specified -in the message, contains any unprintable -.Tn ASCII -characters, the -message is discarded. -Valid messages received by -.Nm -are placed in files named -.Pa whod.hostname -in the directory -.Pa /var/rwho . -These files contain only the most recent message, in the -format described above. -.Pp -Status messages are generated approximately once every -3 minutes. -.Sh SEE ALSO -.Xr ruptime 1 , -.Xr rwho 1 -.Sh HISTORY -The -.Nm -command appeared in -.Bx 4.2 . -.Sh BUGS -There should be a way to relay status information between networks. -Status information should be sent only upon request rather than continuously. -People often interpret the server dying -or network communication failures -as a machine going down. diff --git a/usr.sbin/rwhod/rwhod.c b/usr.sbin/rwhod/rwhod.c deleted file mode 100644 index edc0de66196..00000000000 --- a/usr.sbin/rwhod/rwhod.c +++ /dev/null @@ -1,615 +0,0 @@ -/* - * Copyright (c) 1983, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * Alarm interval. Don't forget to change the down time check in ruptime - * if this is changed. - */ -#define AL_INTERVAL (3 * 60) - -char myname[MAXHOSTNAMELEN]; - -int debug; - -/* - * We communicate with each neighbor in a list constructed at the time we're - * started up. Neighbors are currently directly connected via a hardware - * interface. - */ -struct neighbor { - struct neighbor *n_next; - char *n_name; /* interface name */ - struct sockaddr *n_addr; /* who to send to */ - int n_addrlen; /* size of address */ - int n_flags; /* should forward?, interface flags */ -}; - -struct neighbor *neighbors; -struct whod mywd; -struct servent *sp; -int s, utmpf; - -volatile sig_atomic_t gothup; - -#define WHDRSIZE (sizeof(mywd) - sizeof(mywd.wd_we)) - -int configure(void); -void getboottime(void); -void hup(int); -void timer(void); -void quit(char *); -void rt_xaddrs(caddr_t, caddr_t, struct rt_addrinfo *); -int verify(char *); -void handleread(int s); -int Sendto(int, const void *, size_t, int, const struct sockaddr *, - socklen_t); -char *interval(int, char *); - -/* ARGSUSED */ -void -hup(int signo) -{ - gothup = 1; -} - -void -usage(void) -{ - extern char *__progname; - fprintf(stderr, "usage: %s [-d]\n", __progname); - exit(1); -} - -int -main(int argc, char *argv[]) -{ - struct timeval start, next, delta, now; - struct sockaddr_in sin; - struct pollfd pfd[1]; - int on = 1, ch; - char *cp; - - while ((ch = getopt(argc, argv, "d")) != -1) { - switch (ch) { - case 'd': - debug = 1; - break; - default: - usage(); - } - } - - if (getuid()) - errx(1, "not super user"); - sp = getservbyname("who", "udp"); - if (sp == NULL) - errx(1, "udp/who: unknown service"); - if (chdir(_PATH_RWHODIR) < 0) - err(1, "%s", _PATH_RWHODIR); - if (!debug) - daemon(1, 0); - - (void) signal(SIGHUP, hup); - openlog("rwhod", LOG_PID, LOG_DAEMON); - /* - * Establish host name as returned by system. - */ - if (gethostname(myname, sizeof(myname)) < 0) { - syslog(LOG_ERR, "gethostname: %m"); - exit(1); - } - if ((cp = strchr(myname, '.')) != NULL) - *cp = '\0'; - strncpy(mywd.wd_hostname, myname, sizeof(mywd.wd_hostname) - 1); - mywd.wd_hostname[sizeof(mywd.wd_hostname) - 1] = '\0'; - utmpf = open(_PATH_UTMP, O_RDONLY|O_CREAT, 0644); - if (utmpf < 0) { - syslog(LOG_ERR, "%s: %m", _PATH_UTMP); - exit(1); - } - getboottime(); - if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) { - syslog(LOG_ERR, "socket: %m"); - exit(1); - } - if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, &on, sizeof(on)) < 0) { - syslog(LOG_ERR, "setsockopt SO_BROADCAST: %m"); - exit(1); - } - memset(&sin, 0, sizeof(sin)); - sin.sin_addr.s_addr = INADDR_ANY; - sin.sin_family = AF_INET; - sin.sin_port = sp->s_port; - if (bind(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) { - syslog(LOG_ERR, "bind: %m"); - exit(1); - } - if (!configure()) - exit(1); - timer(); - - gettimeofday(&start, NULL); - delta.tv_sec = AL_INTERVAL; - delta.tv_usec = 0; - timeradd(&start, &delta, &next); - - pfd[0].fd = s; - pfd[0].events = POLLIN; - - for (;;) { - int n; - - n = poll(pfd, 1, 1000); - - if (n == 1) - handleread(s); - - if (gothup) { - gothup = 0; - getboottime(); - } - - gettimeofday(&now, NULL); - if (timercmp(&now, &next, >)) { - timer(); - timeradd(&now, &delta, &next); - } - } -} - -void -handleread(int s) -{ - struct sockaddr_in from; - struct stat st; - char path[64]; - struct whod wd; - int cc, whod; - time_t t; - socklen_t len = sizeof(from); - - cc = recvfrom(s, (char *)&wd, sizeof(struct whod), 0, - (struct sockaddr *)&from, &len); - if (cc <= 0) { - if (cc < 0 && errno != EINTR) - syslog(LOG_WARNING, "recv: %m"); - return; - } - if (from.sin_port != sp->s_port) { - syslog(LOG_WARNING, "%d: bad source port from %s", - ntohs(from.sin_port), inet_ntoa(from.sin_addr)); - return; - } - if (cc < WHDRSIZE) { - syslog(LOG_WARNING, "short packet from %s", - inet_ntoa(from.sin_addr)); - return; - } - if (wd.wd_vers != WHODVERSION) - return; - if (wd.wd_type != WHODTYPE_STATUS) - return; - wd.wd_hostname[sizeof(wd.wd_hostname)-1] = '\0'; - if (!verify(wd.wd_hostname)) { - syslog(LOG_WARNING, "malformed host name from %s", - inet_ntoa(from.sin_addr)); - return; - } - if (debug) - printf("host %s\n", wd.wd_hostname); - - (void) snprintf(path, sizeof path, "whod.%s", wd.wd_hostname); - /* - * Rather than truncating and growing the file each time, - * use ftruncate if size is less than previous size. - */ - whod = open(path, O_WRONLY | O_CREAT, 0644); - if (whod < 0) { - syslog(LOG_WARNING, "%s: %m", path); - return; - } -#if ENDIAN != BIG_ENDIAN - { - int i, n = (cc - WHDRSIZE)/sizeof(struct whoent); - struct whoent *we; - - /* undo header byte swapping before writing to file */ - wd.wd_sendtime = ntohl(wd.wd_sendtime); - for (i = 0; i < 3; i++) - wd.wd_loadav[i] = ntohl(wd.wd_loadav[i]); - wd.wd_boottime = ntohl(wd.wd_boottime); - we = wd.wd_we; - for (i = 0; i < n; i++) { - we->we_idle = ntohl(we->we_idle); - we->we_utmp.out_time = - ntohl(we->we_utmp.out_time); - we++; - } - } -#endif - (void) time(&t); - wd.wd_recvtime = t; /* XXX protocol breaks in 2038 */ - (void) write(whod, (char *)&wd, cc); - if (fstat(whod, &st) < 0 || st.st_size > cc) - ftruncate(whod, (off_t)cc); - (void) close(whod); -} - -/* - * Check out host name for unprintables - * and other funnies before allowing a file - * to be created. Sorry, but blanks aren't allowed. - */ -int -verify(char *p) -{ - char c; - - /* - * Many people do not obey RFC 822 and 1035. The valid - * characters are a-z, A-Z, 0-9, '-' and . But the others - * tested for below can happen, and we must be more permissive - * than the resolver until those idiots clean up their act. - */ - if (*p == '.' || *p == '-') - return 0; - while ((c = *p++)) { - if (('a' <= c && c <= 'z') || - ('A' <= c && c <= 'Z') || - ('0' <= c && c <= '9')) - continue; - if (c == '.' && *p == '.') - return 0; - if (c == '.' || c == '-') - continue; - return 0; - } - return 1; -} - -int utmptime; -int utmpent; -int utmpsize = 0; -struct utmp *utmp; -int alarmcount; - -void -timer(void) -{ - struct neighbor *np; - struct whoent *we = mywd.wd_we, *wlast; - int i; - struct stat stb; - double avenrun[3]; - time_t now; - struct utmp *nutmp; - int cc; - - now = time(NULL); - if (alarmcount % 10 == 0) - getboottime(); - alarmcount++; - (void) fstat(utmpf, &stb); - - /* implicitly safe truncation */ - if (stb.st_size > 1024*1024 * sizeof(struct utmp)) - stb.st_size = 1024*1024 * sizeof(struct utmp); - - if ((stb.st_mtime != utmptime) || (stb.st_size > utmpsize)) { - utmptime = stb.st_mtime; - if (stb.st_size > utmpsize) { - int nutmpsize = stb.st_size + 10 * sizeof(struct utmp); - nutmp = (struct utmp *)realloc(utmp, nutmpsize); - if (!nutmp) { - warnx("malloc failed"); - free(utmp); - utmpsize = 0; - return; - } - utmp = nutmp; - utmpsize = nutmpsize; - } - (void) lseek(utmpf, (off_t)0, SEEK_SET); - cc = read(utmpf, (char *)utmp, (size_t)stb.st_size); - if (cc < 0) { - warnx("%s", _PATH_UTMP); - return; - } - wlast = &mywd.wd_we[1024 / sizeof(struct whoent) - 1]; - utmpent = cc / sizeof(struct utmp); - for (i = 0; i < utmpent; i++) - if (utmp[i].ut_name[0]) { - memcpy(we->we_utmp.out_line, utmp[i].ut_line, - sizeof(we->we_utmp.out_line)); - memcpy(we->we_utmp.out_name, utmp[i].ut_name, - sizeof(we->we_utmp.out_line)); - we->we_utmp.out_time = htonl(utmp[i].ut_time); - if (we >= wlast) - break; - we++; - } - utmpent = we - mywd.wd_we; - } - - /* - * The test on utmpent looks silly---after all, if no one is - * logged on, why worry about efficiency?---but is useful on - * (e.g.) compute servers. - */ - if (utmpent && chdir(_PATH_DEV)) { - syslog(LOG_ERR, "chdir(%s): %m", _PATH_DEV); - exit(1); - } - we = mywd.wd_we; - for (i = 0; i < utmpent; i++) { - if (stat(we->we_utmp.out_line, &stb) >= 0) - we->we_idle = htonl(now - stb.st_atime); - we++; - } - (void)getloadavg(avenrun, sizeof(avenrun)/sizeof(avenrun[0])); - for (i = 0; i < 3; i++) - mywd.wd_loadav[i] = htonl((u_long)(avenrun[i] * 100)); - cc = (char *)we - (char *)&mywd; - mywd.wd_sendtime = htonl(time(0)); - mywd.wd_vers = WHODVERSION; - mywd.wd_type = WHODTYPE_STATUS; - for (np = neighbors; np != NULL; np = np->n_next) - (void)Sendto(s, &mywd, cc, 0, np->n_addr, np->n_addrlen); - if (utmpent && chdir(_PATH_RWHODIR)) { - syslog(LOG_ERR, "chdir(%s): %m", _PATH_RWHODIR); - exit(1); - } -} - -void -getboottime(void) -{ - int mib[2]; - size_t size; - struct timeval tm; - - mib[0] = CTL_KERN; - mib[1] = KERN_BOOTTIME; - size = sizeof(tm); - if (sysctl(mib, 2, &tm, &size, NULL, 0) == -1) { - syslog(LOG_ERR, "cannot get boottime: %m"); - exit(1); - } - mywd.wd_boottime = htonl(tm.tv_sec); -} - -void -quit(char *msg) -{ - syslog(LOG_ERR, "%s", msg); - exit(1); -} - -#define ROUNDUP(a) \ - ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) -#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) - -void -rt_xaddrs(caddr_t cp, caddr_t cplim, struct rt_addrinfo *rtinfo) -{ - struct sockaddr *sa; - int i; - - memset(rtinfo->rti_info, 0, sizeof(rtinfo->rti_info)); - for (i = 0; (i < RTAX_MAX) && (cp < cplim); i++) { - if ((rtinfo->rti_addrs & (1 << i)) == 0) - continue; - rtinfo->rti_info[i] = sa = (struct sockaddr *)cp; - ADVANCE(cp, sa); - } -} - -/* - * Figure out device configuration and select - * networks which deserve status information. - */ -int -configure(void) -{ - struct neighbor *np; - struct if_msghdr *ifm; - struct ifa_msghdr *ifam; - struct sockaddr_dl *sdl; - size_t needed; - int mib[6], flags = 0, len; - char *buf = NULL, *lim, *next; - struct rt_addrinfo info; - - mib[0] = CTL_NET; - mib[1] = PF_ROUTE; - mib[2] = 0; - mib[3] = AF_INET; - mib[4] = NET_RT_IFLIST; - mib[5] = 0; - while (1) { - if (sysctl(mib, 6, NULL, &needed, NULL, 0) == -1) - quit("route-sysctl-estimate"); - if (needed == 0) - break; - if ((buf = realloc(buf, needed)) == NULL) - quit("realloc"); - if (sysctl(mib, 6, buf, &needed, NULL, 0) == -1) { - if (errno == ENOMEM) - continue; - quit("actual retrieval of interface table"); - } - lim = buf + needed; - break; - } - - sdl = NULL; /* XXX just to keep gcc -Wall happy */ - for (next = buf; next < lim; next += ifm->ifm_msglen) { - ifm = (struct if_msghdr *)next; - if (ifm->ifm_version != RTM_VERSION) - continue; - if (ifm->ifm_type == RTM_IFINFO) { - sdl = (struct sockaddr_dl *)(ifm + 1); - flags = ifm->ifm_flags; - continue; - } - if ((flags & IFF_UP) == 0 || - (flags & (IFF_BROADCAST|IFF_POINTOPOINT)) == 0) - continue; - if (ifm->ifm_type != RTM_NEWADDR) - quit("out of sync parsing NET_RT_IFLIST"); - ifam = (struct ifa_msghdr *)ifm; - info.rti_addrs = ifam->ifam_addrs; - rt_xaddrs((char *)(ifam + 1), ifam->ifam_msglen + (char *)ifam, - &info); - /* gag, wish we could get rid of Internet dependencies */ -#define dstaddr info.rti_info[RTAX_BRD] -#define IPADDR_SA(x) ((struct sockaddr_in *)(x))->sin_addr.s_addr -#define PORT_SA(x) ((struct sockaddr_in *)(x))->sin_port - if (dstaddr == 0 || dstaddr->sa_family != AF_INET) - continue; - PORT_SA(dstaddr) = sp->s_port; - for (np = neighbors; np != NULL; np = np->n_next) - if (memcmp(sdl->sdl_data, np->n_name, - sdl->sdl_nlen) == 0 && - IPADDR_SA(np->n_addr) == IPADDR_SA(dstaddr)) - break; - if (np != NULL) - continue; - len = sizeof(*np) + dstaddr->sa_len + sdl->sdl_nlen + 1; - np = (struct neighbor *)malloc(len); - if (np == NULL) - quit("malloc of neighbor structure"); - memset(np, 0, len); - np->n_flags = flags; - np->n_addr = (struct sockaddr *)(np + 1); - np->n_addrlen = dstaddr->sa_len; - np->n_name = np->n_addrlen + (char *)np->n_addr; - np->n_next = neighbors; - neighbors = np; - memcpy((char *)np->n_addr, (char *)dstaddr, np->n_addrlen); - memcpy(np->n_name, sdl->sdl_data, sdl->sdl_nlen); - } - free(buf); - return (1); -} - -int -Sendto(int s, const void *buf, size_t cc, int flags, - const struct sockaddr *to, socklen_t tolen) -{ - struct whod *w = (struct whod *)buf; - struct whoent *we; - struct sockaddr_in *sin = (struct sockaddr_in *)to; - int ret; - - ret = sendto(s, buf, cc, flags, to, tolen); - if (debug) { - printf("sendto %s.%d\n", inet_ntoa(sin->sin_addr), - ntohs(sin->sin_port)); - printf("hostname %s %s\n", w->wd_hostname, - interval(ntohl(w->wd_sendtime) - ntohl(w->wd_boottime), - " up")); - printf("load %4.2f, %4.2f, %4.2f\n", - ntohl(w->wd_loadav[0]) / 100.0, - ntohl(w->wd_loadav[1]) / 100.0, - ntohl(w->wd_loadav[2]) / 100.0); - cc -= WHDRSIZE; - for (we = w->wd_we, cc /= sizeof(struct whoent); cc > 0; - cc--, we++) { - time_t t = ntohl(we->we_utmp.out_time); - printf("%-8.8s %s:%s %.12s", - we->we_utmp.out_name, - w->wd_hostname, we->we_utmp.out_line, - ctime(&t)+4); - we->we_idle = ntohl(we->we_idle) / 60; - if (we->we_idle) { - if (we->we_idle >= 100*60) - we->we_idle = 100*60 - 1; - if (we->we_idle >= 60) - printf(" %2d", we->we_idle / 60); - else - printf(" "); - printf(":%02u", we->we_idle % 60); - } - printf("\n"); - } - } - return (ret); -} - -char * -interval(int time, char *updown) -{ - static char resbuf[32]; - int days, hours, minutes; - - if (time < 0 || time > 3*30*24*60*60) { - (void) snprintf(resbuf, sizeof(resbuf), - " %s ??:??", updown); - return (resbuf); - } - minutes = (time + 59) / 60; /* round to minutes */ - hours = minutes / 60; minutes %= 60; - days = hours / 24; hours %= 24; - if (days) - (void) snprintf(resbuf, sizeof(resbuf), - "%s %2d+%02d:%02d", updown, days, hours, minutes); - else - (void) snprintf(resbuf, sizeof(resbuf), - "%s %2d:%02d", updown, hours, minutes); - return (resbuf); -} -- 2.20.1