static void
ruptime(const char *host, int aflg, int (*cmp)(const void *, const void *))
{
struct hs *hsp;
struct whod *wd;
struct whoent *we;
struct dirent *dp;
const char *hostname;
int fd, i, maxloadav;
size_t hspace;
ssize_t cc;
rewinddir(dirp);
hsp = NULL;
maxloadav = -1;
(void)time(&now);
for (nhosts = hspace = 0; (dp = readdir(dirp)) != NULL;) {
if (dp->d_ino == 0 || strncmp(dp->d_name, "whod.", 5) != 0)
continue;
if ((fd = open(dp->d_name, O_RDONLY, 0)) < 0) {
warn("%s", dp->d_name);
continue;
}
if (nhosts == hspace) {
if ((hs =
realloc(hs, (hspace += 40) * sizeof(*hs))) == NULL)
err(1, NULL);
hsp = hs + nhosts;
}
wd = &hsp->hs_wd;
cc = read(fd, wd, sizeof(*wd));
(void)close(fd);
if (cc < (ssize_t)WHDRSIZE)
continue;
if (host != NULL) {
hostname = wd->wd_hostname;
if (strcasecmp(hostname, host) != 0)
continue;
}
if (LEFTEARTH(wd->wd_recvtime))
continue;
for (i = 0; i < 2; i++)
if (wd->wd_loadav[i] > maxloadav)
maxloadav = wd->wd_loadav[i];
for (hsp->hs_nusers = 0, we = &wd->wd_we[0];
(char *)(we + 1) <= (char *)wd + cc; we++)
if (aflg || we->we_idle < 3600)
++hsp->hs_nusers;
++hsp;
++nhosts;
}
if (nhosts == 0) {
if (host == NULL)
errx(1, "no hosts in %s", _PATH_RWHODIR);
else
warnx("host %s not in %s", host, _PATH_RWHODIR);
}
qsort(hs, nhosts, sizeof(hs[0]), cmp);
for (i = 0; i < (int)nhosts; i++) {
hsp = &hs[i];
wd = &hsp->hs_wd;
if (ISDOWN(hsp)) {
(void)printf("%-25.25s%s\n", wd->wd_hostname,
interval(now - hsp->hs_wd.wd_recvtime, "down"));
continue;
}
(void)printf(
"%-25.25s%s, %4d user%s load %*.2f, %*.2f, %*.2f\n",
wd->wd_hostname,
interval((time_t)wd->wd_sendtime -
(time_t)wd->wd_boottime, " up"),
hsp->hs_nusers,
hsp->hs_nusers == 1 ? ", " : "s,",
maxloadav >= 1000 ? 5 : 4,
wd->wd_loadav[0] / 100.0,
maxloadav >= 1000 ? 5 : 4,
wd->wd_loadav[1] / 100.0,
maxloadav >= 1000 ? 5 : 4,
wd->wd_loadav[2] / 100.0);
}
free(hs);
hs = NULL;
}
int
main(int argc, char *argv[])
{
struct dirent *dp;
struct hs *hsp = NULL;
struct whod *wd;
struct whoent *we;
DIR *dirp;
size_t hspace;
int aflg, ch, fd, maxloadav;
char buf[sizeof(struct whod)];
int (*cmp)(const void *, const void *);
u_int cc, i;
aflg = 0;
cmp = hscmp;
while ((ch = getopt(argc, argv, "alrut")) != -1)
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 (LEFTEARTH(((struct whod *)buf)->wd_recvtime))
continue;
if (nhosts == hspace) {
hspace += 40;
if ((hs = realloc(hs, hspace * 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(1, "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);
}
