+++ /dev/null
-.\" $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.
+++ /dev/null
-/*
- * 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 <sys/param.h>
-#include <sys/socket.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/sysctl.h>
-
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/route.h>
-#include <netinet/in.h>
-#include <protocols/rwhod.h>
-#include <arpa/inet.h>
-
-#include <ctype.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <poll.h>
-#include <netdb.h>
-#include <paths.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <syslog.h>
-#include <unistd.h>
-#include <utmp.h>
-#include <err.h>
-
-/*
- * 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);
-}
projects / openbsd / commitdiff