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-rw-r--r--usr.bin/ruptime/ruptime.c281
1 files changed, 281 insertions, 0 deletions
diff --git a/usr.bin/ruptime/ruptime.c b/usr.bin/ruptime/ruptime.c
new file mode 100644
index 0000000..b9c17a7
--- /dev/null
+++ b/usr.bin/ruptime/ruptime.c
@@ -0,0 +1,281 @@
+/*
+ * Copyright (c) 1983, 1993, 1994
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. 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.
+ */
+
+#ifndef lint
+static char copyright[] =
+"@(#) Copyright (c) 1983, 1993, 1994\n\
+ The Regents of the University of California. All rights reserved.\n";
+#endif /* not lint */
+
+#ifndef lint
+static char sccsid[] = "@(#)ruptime.c 8.2 (Berkeley) 4/5/94";
+#endif /* not lint */
+
+#include <sys/param.h>
+
+#include <protocols/rwhod.h>
+
+#include <dirent.h>
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <tzfile.h>
+#include <unistd.h>
+
+struct hs {
+ struct whod *hs_wd;
+ int hs_nusers;
+} *hs;
+struct whod awhod;
+
+#define ISDOWN(h) (now - (h)->hs_wd->wd_recvtime > 11 * 60)
+#define WHDRSIZE (sizeof (awhod) - sizeof (awhod.wd_we))
+
+size_t nhosts;
+time_t now;
+int rflg = 1;
+
+int hscmp __P((const void *, const void *));
+char *interval __P((time_t, char *));
+int lcmp __P((const void *, const void *));
+void morehosts __P((void));
+int tcmp __P((const void *, const void *));
+int ucmp __P((const void *, const void *));
+void usage __P((void));
+
+int
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern int optind;
+ struct dirent *dp;
+ struct hs *hsp;
+ struct whod *wd;
+ struct whoent *we;
+ DIR *dirp;
+ size_t hspace;
+ int aflg, cc, ch, fd, i, maxloadav;
+ char buf[sizeof(struct whod)];
+ int (*cmp) __P((const void *, const void *));
+
+ aflg = 0;
+ cmp = hscmp;
+ while ((ch = getopt(argc, argv, "alrut")) != EOF)
+ switch (ch) {
+ case 'a':
+ aflg = 1;
+ break;
+ case 'l':
+ cmp = lcmp;
+ break;
+ case 'r':
+ rflg = -1;
+ break;
+ case 't':
+ cmp = tcmp;
+ break;
+ case 'u':
+ cmp = ucmp;
+ break;
+ default:
+ usage();
+ }
+ argc -= optind;
+ argv += optind;
+
+ if (argc != 0)
+ usage();
+
+ if (chdir(_PATH_RWHODIR) || (dirp = opendir(".")) == NULL)
+ err(1, "%s", _PATH_RWHODIR);
+
+ maxloadav = -1;
+ for (nhosts = hspace = 0; (dp = readdir(dirp)) != NULL;) {
+ if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5))
+ continue;
+ if ((fd = open(dp->d_name, O_RDONLY, 0)) < 0) {
+ warn("%s", dp->d_name);
+ continue;
+ }
+ cc = read(fd, buf, sizeof(struct whod));
+ (void)close(fd);
+
+ if (cc < WHDRSIZE)
+ continue;
+ if (nhosts == hspace) {
+ if ((hs =
+ realloc(hs, (hspace += 40) * sizeof(*hs))) == NULL)
+ err(1, NULL);
+ hsp = hs + nhosts;
+ }
+
+ if ((hsp->hs_wd = malloc((size_t)WHDRSIZE)) == NULL)
+ err(1, NULL);
+ memmove(hsp->hs_wd, buf, (size_t)WHDRSIZE);
+
+ for (wd = (struct whod *)buf, i = 0; i < 2; ++i)
+ if (wd->wd_loadav[i] > maxloadav)
+ maxloadav = wd->wd_loadav[i];
+
+ for (hsp->hs_nusers = 0,
+ we = (struct whoent *)(buf + cc); --we >= wd->wd_we;)
+ if (aflg || we->we_idle < 3600)
+ ++hsp->hs_nusers;
+ ++hsp;
+ ++nhosts;
+ }
+ if (nhosts == 0)
+ errx(0, "no hosts in %s.", _PATH_RWHODIR);
+
+ (void)time(&now);
+ qsort(hs, nhosts, sizeof(hs[0]), cmp);
+ for (i = 0; i < nhosts; i++) {
+ hsp = &hs[i];
+ if (ISDOWN(hsp)) {
+ (void)printf("%-12.12s%s\n", hsp->hs_wd->wd_hostname,
+ interval(now - hsp->hs_wd->wd_recvtime, "down"));
+ continue;
+ }
+ (void)printf(
+ "%-12.12s%s, %4d user%s load %*.2f, %*.2f, %*.2f\n",
+ hsp->hs_wd->wd_hostname,
+ interval((time_t)hsp->hs_wd->wd_sendtime -
+ (time_t)hsp->hs_wd->wd_boottime, " up"),
+ hsp->hs_nusers,
+ hsp->hs_nusers == 1 ? ", " : "s,",
+ maxloadav >= 1000 ? 5 : 4,
+ hsp->hs_wd->wd_loadav[0] / 100.0,
+ maxloadav >= 1000 ? 5 : 4,
+ hsp->hs_wd->wd_loadav[1] / 100.0,
+ maxloadav >= 1000 ? 5 : 4,
+ hsp->hs_wd->wd_loadav[2] / 100.0);
+ }
+ exit(0);
+}
+
+char *
+interval(tval, updown)
+ time_t tval;
+ char *updown;
+{
+ static char resbuf[32];
+ int days, hours, minutes;
+
+ if (tval < 0 || tval > DAYSPERNYEAR * SECSPERDAY) {
+ (void)snprintf(resbuf, sizeof(resbuf), " %s ??:??", updown);
+ return (resbuf);
+ }
+ /* round to minutes. */
+ minutes = (tval + (SECSPERMIN - 1)) / SECSPERMIN;
+ hours = minutes / MINSPERHOUR;
+ minutes %= MINSPERHOUR;
+ days = hours / HOURSPERDAY;
+ hours %= HOURSPERDAY;
+ 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);
+}
+
+#define HS(a) ((struct hs *)(a))
+
+/* Alphabetical comparison. */
+int
+hscmp(a1, a2)
+ const void *a1, *a2;
+{
+ return (rflg *
+ strcmp(HS(a1)->hs_wd->wd_hostname, HS(a2)->hs_wd->wd_hostname));
+}
+
+/* Load average comparison. */
+int
+lcmp(a1, a2)
+ const void *a1, *a2;
+{
+ if (ISDOWN(HS(a1)))
+ if (ISDOWN(HS(a2)))
+ return (tcmp(a1, a2));
+ else
+ return (rflg);
+ else if (ISDOWN(HS(a2)))
+ return (-rflg);
+ else
+ return (rflg *
+ (HS(a2)->hs_wd->wd_loadav[0] - HS(a1)->hs_wd->wd_loadav[0]));
+}
+
+/* Number of users comparison. */
+int
+ucmp(a1, a2)
+ const void *a1, *a2;
+{
+ if (ISDOWN(HS(a1)))
+ if (ISDOWN(HS(a2)))
+ return (tcmp(a1, a2));
+ else
+ return (rflg);
+ else if (ISDOWN(HS(a2)))
+ return (-rflg);
+ else
+ return (rflg * (HS(a2)->hs_nusers - HS(a1)->hs_nusers));
+}
+
+/* Uptime comparison. */
+int
+tcmp(a1, a2)
+ const void *a1, *a2;
+{
+ return (rflg * (
+ (ISDOWN(HS(a2)) ? HS(a2)->hs_wd->wd_recvtime - now
+ : HS(a2)->hs_wd->wd_sendtime - HS(a2)->hs_wd->wd_boottime)
+ -
+ (ISDOWN(HS(a1)) ? HS(a1)->hs_wd->wd_recvtime - now
+ : HS(a1)->hs_wd->wd_sendtime - HS(a1)->hs_wd->wd_boottime)
+ ));
+}
+
+void
+usage()
+{
+ (void)fprintf(stderr, "usage: ruptime [-alrut]\n");
+ exit(1);
+}
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