int
main(int argc, char *argv[])
{
struct kinfo_proc *kp;
struct kinfo_proc *dkp;
struct stat *stp;
time_t touched;
int ch, i, nentries, nusers, wcmd, longidle, longattime, dropgid;
const char *memf, *nlistf, *p;
char *x_suffix;
char buf[MAXHOSTNAMELEN], errbuf[_POSIX2_LINE_MAX];
char fn[MAXHOSTNAMELEN];
char *dot;
(void)setlocale(LC_ALL, "");
use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
use_comma = (*nl_langinfo(RADIXCHAR) != ',');
/* Are we w(1) or uptime(1)? */
if (this_is_uptime(argv[0]) == 0) {
wcmd = 0;
p = "";
} else {
wcmd = 1;
p = "dhiflM:N:nsuw";
}
dropgid = 0;
memf = _PATH_DEVNULL;
nlistf = NULL;
while ((ch = getopt(argc, argv, p)) != -1)
switch (ch) {
case 'd':
dflag = 1;
break;
case 'h':
header = 0;
break;
case 'i':
sortidle = 1;
break;
case 'M':
header = 0;
memf = optarg;
dropgid = 1;
break;
case 'N':
nlistf = optarg;
dropgid = 1;
break;
case 'n':
nflag = 1;
break;
case 'f': case 'l': case 's': case 'u': case 'w':
warnx("[-flsuw] no longer supported");
/* FALLTHROUGH */
case '?':
default:
usage(wcmd);
}
argc -= optind;
argv += optind;
if (!(_res.options & RES_INIT))
res_init();
_res.retrans = 2; /* resolver timeout to 2 seconds per try */
_res.retry = 1; /* only try once.. */
/*
* Discard setgid privileges if not the running kernel so that bad
* guys can't print interesting stuff from kernel memory.
*/
if (dropgid)
setgid(getgid());
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == NULL)
errx(1, "%s", errbuf);
(void)time(&now);
if (*argv)
sel_users = argv;
setutxent();
for (nusers = 0; (utmp = getutxent()) != NULL;) {
if (utmp->ut_type != USER_PROCESS)
continue;
if (!(stp = ttystat(utmp->ut_line)))
continue; /* corrupted record */
++nusers;
if (wcmd == 0)
continue;
if (sel_users) {
int usermatch;
char **user;
usermatch = 0;
for (user = sel_users; !usermatch && *user; user++)
if (!strcmp(utmp->ut_user, *user))
usermatch = 1;
if (!usermatch)
continue;
}
if ((ep = calloc(1, sizeof(struct entry))) == NULL)
errx(1, "calloc");
*nextp = ep;
nextp = &ep->next;
memmove(&ep->utmp, utmp, sizeof *utmp);
ep->tdev = stp->st_rdev;
/*
* If this is the console device, attempt to ascertain
* the true console device dev_t.
*/
if (ep->tdev == 0) {
size_t size;
size = sizeof(dev_t);
(void)sysctlbyname("machdep.consdev", &ep->tdev, &size, NULL, 0);
}
touched = stp->st_atime;
if (touched < ep->utmp.ut_tv.tv_sec) {
/* tty untouched since before login */
touched = ep->utmp.ut_tv.tv_sec;
}
if ((ep->idle = now - touched) < 0)
ep->idle = 0;
}
endutxent();
if (header || wcmd == 0) {
pr_header(&now, nusers);
if (wcmd == 0) {
(void)kvm_close(kd);
exit(0);
}
#define HEADER_USER "USER"
#define HEADER_TTY "TTY"
#define HEADER_FROM "FROM"
#define HEADER_LOGIN_IDLE "LOGIN@ IDLE "
#define HEADER_WHAT "WHAT\n"
#define WUSED (W_DISPUSERSIZE + W_DISPLINESIZE + W_DISPHOSTSIZE + \
sizeof(HEADER_LOGIN_IDLE) + 3) /* header width incl. spaces */
(void)printf("%-*.*s %-*.*s %-*.*s %s",
W_DISPUSERSIZE, W_DISPUSERSIZE, HEADER_USER,
W_DISPLINESIZE, W_DISPLINESIZE, HEADER_TTY,
W_DISPHOSTSIZE, W_DISPHOSTSIZE, HEADER_FROM,
HEADER_LOGIN_IDLE HEADER_WHAT);
}
if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nentries)) == NULL)
err(1, "%s", kvm_geterr(kd));
for (i = 0; i < nentries; i++, kp++) {
if (kp->ki_stat == SIDL || kp->ki_stat == SZOMB ||
kp->ki_tdev == NODEV)
continue;
for (ep = ehead; ep != NULL; ep = ep->next) {
if (ep->tdev == kp->ki_tdev) {
/*
* proc is associated with this terminal
*/
if (ep->kp == NULL && kp->ki_pgid == kp->ki_tpgid) {
/*
* Proc is 'most interesting'
*/
if (proc_compare(ep->kp, kp))
ep->kp = kp;
}
/*
* Proc debug option info; add to debug
* list using kinfo_proc ki_spare[0]
* as next pointer; ptr to ptr avoids the
* ptr = long assumption.
*/
dkp = ep->dkp;
ep->dkp = kp;
debugproc(kp) = dkp;
}
}
}
if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 &&
ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1 &&
ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) || ws.ws_col == 0)
ttywidth = 79;
else
ttywidth = ws.ws_col - 1;
argwidth = ttywidth - WUSED;
if (argwidth < 4)
argwidth = 8;
for (ep = ehead; ep != NULL; ep = ep->next) {
if (ep->kp == NULL) {
ep->args = strdup("-");
continue;
}
ep->args = fmt_argv(kvm_getargv(kd, ep->kp, argwidth),
ep->kp->ki_comm, NULL, MAXCOMLEN);
if (ep->args == NULL)
err(1, NULL);
}
/* sort by idle time */
if (sortidle && ehead != NULL) {
struct entry *from, *save;
from = ehead;
ehead = NULL;
while (from != NULL) {
for (nextp = &ehead;
(*nextp) && from->idle >= (*nextp)->idle;
nextp = &(*nextp)->next)
continue;
save = from;
from = from->next;
save->next = *nextp;
*nextp = save;
}
}
for (ep = ehead; ep != NULL; ep = ep->next) {
struct addrinfo hints, *res;
struct sockaddr_storage ss;
struct sockaddr *sa = (struct sockaddr *)&ss;
struct sockaddr_in *lsin = (struct sockaddr_in *)&ss;
struct sockaddr_in6 *lsin6 = (struct sockaddr_in6 *)&ss;
time_t t;
int isaddr;
p = *ep->utmp.ut_host ? ep->utmp.ut_host : "-";
if ((x_suffix = strrchr(p, ':')) != NULL) {
if ((dot = strchr(x_suffix, '.')) != NULL &&
strchr(dot+1, '.') == NULL)
*x_suffix++ = '\0';
else
x_suffix = NULL;
}
isaddr = 0;
memset(&ss, '\0', sizeof(ss));
if (inet_pton(AF_INET6, p, &lsin6->sin6_addr) == 1) {
lsin6->sin6_len = sizeof(*lsin6);
lsin6->sin6_family = AF_INET6;
isaddr = 1;
} else if (inet_pton(AF_INET, p, &lsin->sin_addr) == 1) {
lsin->sin_len = sizeof(*lsin);
lsin->sin_family = AF_INET;
isaddr = 1;
}
if (!nflag) {
/* Attempt to change an IP address into a name */
if (isaddr && realhostname_sa(fn, sizeof(fn), sa,
sa->sa_len) == HOSTNAME_FOUND)
p = fn;
} else if (!isaddr) {
/*
* If a host has only one A/AAAA RR, change a
* name into an IP address
*/
memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_PASSIVE;
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
if (getaddrinfo(p, NULL, &hints, &res) == 0) {
if (res->ai_next == NULL &&
getnameinfo(res->ai_addr, res->ai_addrlen,
fn, sizeof(fn), NULL, 0,
NI_NUMERICHOST) == 0)
p = fn;
freeaddrinfo(res);
}
}
if (x_suffix) {
(void)snprintf(buf, sizeof(buf), "%s:%s", p, x_suffix);
p = buf;
}
if (dflag) {
for (dkp = ep->dkp; dkp != NULL; dkp = debugproc(dkp)) {
const char *ptr;
ptr = fmt_argv(kvm_getargv(kd, dkp, argwidth),
dkp->ki_comm, NULL, MAXCOMLEN);
if (ptr == NULL)
ptr = "-";
(void)printf("\t\t%-9d %s\n",
dkp->ki_pid, ptr);
}
}
(void)printf("%-*.*s %-*.*s %-*.*s ",
W_DISPUSERSIZE, W_DISPUSERSIZE, ep->utmp.ut_user,
W_DISPLINESIZE, W_DISPLINESIZE,
*ep->utmp.ut_line ?
(strncmp(ep->utmp.ut_line, "tty", 3) &&
strncmp(ep->utmp.ut_line, "cua", 3) ?
ep->utmp.ut_line : ep->utmp.ut_line + 3) : "-",
W_DISPHOSTSIZE, W_DISPHOSTSIZE, *p ? p : "-");
t = ep->utmp.ut_tv.tv_sec;
longattime = pr_attime(&t, &now);
longidle = pr_idle(ep->idle);
(void)printf("%.*s\n", argwidth - longidle - longattime,
ep->args);
}
(void)kvm_close(kd);
exit(0);
}
int
main(int argc, char **argv)
{
struct kinfo_proc *kp;
struct kinfo_proc *dkp;
struct hostent *hp;
in_addr_t l;
int ch, i, nentries, nusers, wcmd, longidle, dropgid;
char *memf, *nlistf, *p, *x;
#ifdef SUPPORT_UTMP
struct utmp *ut;
#endif
#ifdef SUPPORT_UTMPX
struct utmpx *utx;
#endif
char buf[MAXHOSTNAMELEN], errbuf[_POSIX2_LINE_MAX];
(void)setlocale(LC_ALL, "");
use_ampm = (*nl_langinfo(T_FMT_AMPM) != '\0');
use_comma = (*nl_langinfo(RADIXCHAR) != ',');
/* Are we w(1) or uptime(1)? */
if (this_is_uptime(argv[0]) == 0) {
wcmd = 0;
p = "";
} else {
wcmd = 1;
p = "dhiflM:N:nsuw";
}
dropgid = 0;
memf = nlistf = _PATH_DEVNULL;
while ((ch = getopt(argc, argv, p)) != -1)
switch (ch) {
case 'd':
dflag = 1;
break;
case 'h':
header = 0;
break;
case 'i':
sortidle = 1;
break;
case 'M':
header = 0;
memf = optarg;
dropgid = 1;
break;
case 'N':
nlistf = optarg;
dropgid = 1;
break;
case 'n':
nflag = 1;
break;
case 'f': case 'l': case 's': case 'u': case 'w':
warnx("[-flsuw] no longer supported");
/* FALLTHROUGH */
case '?':
default:
usage(wcmd);
}
argc -= optind;
argv += optind;
if (!(_res.options & RES_INIT))
res_init();
_res.retrans = 2; /* resolver timeout to 2 seconds per try */
_res.retry = 1; /* only try once.. */
/*
* Discard setgid privileges if not the running kernel so that bad
* guys can't print interesting stuff from kernel memory.
*/
if (dropgid)
setgid(getgid());
if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == NULL)
errx(1, "%s", errbuf);
(void)time(&now);
#ifdef SUPPORT_UTMPX
setutxent();
#endif
#ifdef SUPPORT_UTMP
setutent();
#endif
if (*argv)
sel_users = argv;
nusers = 0;
#ifdef SUPPORT_UTMPX
while ((utx = getutxent()) != NULL) {
if (utx->ut_type != USER_PROCESS)
continue;
++nusers;
if (sel_users) {
int usermatch;
char **user;
usermatch = 0;
for (user = sel_users; !usermatch && *user; user++)
if (!strncmp(utx->ut_name, *user, UTX_USERSIZE))
usermatch = 1;
if (!usermatch)
continue;
}
if ((ep = calloc(1, sizeof(struct entry))) == NULL)
err(1, NULL);
(void)memcpy(ep->name, utx->ut_name, sizeof(utx->ut_name));
(void)memcpy(ep->line, utx->ut_line, sizeof(utx->ut_line));
(void)memcpy(ep->host, utx->ut_host, sizeof(utx->ut_host));
ep->name[sizeof(utx->ut_name)] = '\0';
ep->line[sizeof(utx->ut_line)] = '\0';
ep->host[sizeof(utx->ut_host)] = '\0';
#if 1
/* XXX: Actually we don't support the utx->ut_ss stuff yet */
if (!nflag || getnameinfo((struct sockaddr *)&utx->ut_ss,
utx->ut_ss.ss_len, ep->host, sizeof(ep->host), NULL, 0,
NI_NUMERICHOST) != 0) {
(void)memcpy(ep->host, utx->ut_host,
sizeof(utx->ut_host));
ep->host[sizeof(utx->ut_host)] = '\0';
}
#endif
ep->type[0] = 'x';
ep->tv = utx->ut_tv;
ep->pid = utx->ut_pid;
*nextp = ep;
nextp = &(ep->next);
if (wcmd != 0)
process(ep);
}
#endif
#ifdef SUPPORT_UTMP
while ((ut = getutent()) != NULL) {
if (ut->ut_name[0] == '\0')
continue;
++nusers;
if (sel_users) {
int usermatch;
char **user;
usermatch = 0;
for (user = sel_users; !usermatch && *user; user++)
if (!strncmp(ut->ut_name, *user, UT_NAMESIZE))
usermatch = 1;
if (!usermatch)
continue;
}
/* Don't process entries that we have utmpx for */
for (ep = ehead; ep != NULL; ep = ep->next) {
if (strncmp(ep->line, ut->ut_line,
sizeof(ut->ut_line)) == 0)
break;
}
if (ep != NULL) {
--nusers; /* Duplicate entry */
continue;
}
if ((ep = calloc(1, sizeof(struct entry))) == NULL)
err(1, NULL);
(void)memcpy(ep->name, ut->ut_name, sizeof(ut->ut_name));
(void)memcpy(ep->line, ut->ut_line, sizeof(ut->ut_line));
(void)memcpy(ep->host, ut->ut_host, sizeof(ut->ut_host));
ep->name[sizeof(ut->ut_name)] = '\0';
ep->line[sizeof(ut->ut_line)] = '\0';
ep->host[sizeof(ut->ut_host)] = '\0';
ep->tv.tv_sec = ut->ut_time;
*nextp = ep;
nextp = &(ep->next);
if (wcmd != 0)
process(ep);
}
#endif
#ifdef SUPPORT_UTMPX
endutxent();
#endif
#ifdef SUPPORT_UTMP
endutent();
#endif
if (header || wcmd == 0) {
pr_header(&now, nusers);
if (wcmd == 0) {
(void)kvm_close(kd);
exit(0);
}
#define HEADER_USER "USER"
#define HEADER_TTY "TTY"
#define HEADER_FROM "FROM"
#define HEADER_LOGIN_IDLE "LOGIN@ IDLE "
#define HEADER_WHAT "WHAT\n"
#define WUSED (maxname + maxline + maxhost + \
sizeof(HEADER_LOGIN_IDLE) + 3) /* header width incl. spaces */
(void)printf("%-*.*s %-*.*s %-*.*s %s",
maxname, maxname, HEADER_USER,
maxline, maxline, HEADER_TTY,
maxhost, maxhost, HEADER_FROM,
HEADER_LOGIN_IDLE HEADER_WHAT);
}
if ((kp = kvm_getprocs(kd, KERN_PROC_ALL, 0, &nentries)) == NULL)
err(1, "%s", kvm_geterr(kd));
for (i = 0; i < nentries; i++, kp++) {
if (kp->kp_stat == SIDL || kp->kp_stat == SZOMB)
continue;
for (ep = ehead; ep != NULL; ep = ep->next) {
if (ep->tdev == kp->kp_tdev) {
/*
* proc is associated with this terminal
*/
if (ep->kp == NULL && kp->kp_pgid == kp->kp_tpgid) {
/*
* Proc is 'most interesting'
*/
if (proc_compare(ep->kp, kp))
ep->kp = kp;
}
/*
* Proc debug option info; add to debug
* list using kinfo_proc kp_eproc.e_spare
* as next pointer; ptr to ptr avoids the
* ptr = long assumption.
*/
dkp = ep->dkp;
ep->dkp = kp;
debugproc(kp) = dkp;
}
if (ep->pid != 0 && ep->pid == kp->kp_pid) {
ep->kp = kp;
break;
}
}
}
if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, &ws) == -1 &&
ioctl(STDERR_FILENO, TIOCGWINSZ, &ws) == -1 &&
ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) == -1) || ws.ws_col == 0)
ttywidth = 79;
else
ttywidth = ws.ws_col - 1;
argwidth = ttywidth - WUSED;
if (argwidth < 4)
argwidth = 8;
for (ep = ehead; ep != NULL; ep = ep->next) {
if (ep->kp == NULL) {
ep->args = "-";
continue;
}
ep->args = fmt_argv(kvm_getargv(kd, ep->kp, argwidth),
ep->kp->kp_comm, MAXCOMLEN);
if (ep->args == NULL)
err(1, NULL);
}
/* sort by idle time */
if (sortidle && ehead != NULL) {
struct entry *from, *save;
from = ehead;
ehead = NULL;
while (from != NULL) {
for (nextp = &ehead;
(*nextp) && from->idle >= (*nextp)->idle;
nextp = &(*nextp)->next)
continue;
save = from;
from = from->next;
save->next = *nextp;
*nextp = save;
}
}
#if defined(SUPPORT_UTMP) && defined(SUPPORT_UTMPX)
else if (ehead != NULL) {
struct entry *from = ehead, *save;
ehead = NULL;
while (from != NULL) {
for (nextp = &ehead;
(*nextp) && strcmp(from->line, (*nextp)->line) > 0;
nextp = &(*nextp)->next)
continue;
save = from;
from = from->next;
save->next = *nextp;
*nextp = save;
}
}
#endif
if (!nflag) {
if (gethostname(domain, sizeof(domain)) < 0 ||
(p = strchr(domain, '.')) == NULL)
domain[0] = '\0';
else {
domain[sizeof(domain) - 1] = '\0';
memmove(domain, p, strlen(p) + 1);
}
}
for (ep = ehead; ep != NULL; ep = ep->next) {
char host_buf[UTX_HOSTSIZE + 1];
host_buf[UTX_HOSTSIZE] = '\0';
strncpy(host_buf, ep->host, maxhost);
p = *host_buf ? host_buf : "-";
if ((x = strchr(p, ':')) != NULL)
*x++ = '\0';
if (!nflag && isdigit(*p) && (l = inet_addr(p)) != -1 &&
(hp = gethostbyaddr(&l, sizeof(l), AF_INET))) {
if (domain[0] != '\0') {
p = hp->h_name;
p += strlen(hp->h_name);
p -= strlen(domain);
if (p > hp->h_name &&
strcasecmp(p, domain) == 0)
*p = '\0';
}
p = hp->h_name;
}
if (nflag && *p && strcmp(p, "-") &&
inet_addr(p) == INADDR_NONE) {
hp = gethostbyname(p);
if (hp != NULL) {
struct in_addr in;
memmove(&in, hp->h_addr, sizeof(in));
p = inet_ntoa(in);
}
}
if (x) {
(void)snprintf(buf, sizeof(buf), "%s:%s", p, x);
p = buf;
}
if (dflag) {
for (dkp = ep->dkp; dkp != NULL; dkp = debugproc(dkp)) {
char *ptr;
ptr = fmt_argv(kvm_getargv(kd, dkp, argwidth),
dkp->kp_comm, MAXCOMLEN);
if (ptr == NULL)
ptr = "-";
(void)printf("\t\t%-9d %s\n",
dkp->kp_pid, ptr);
}
}
(void)printf("%-*.*s %-*.*s %-*.*s ",
maxname, maxname, ep->name,
maxline, maxline,
strncmp(ep->line, "tty", 3) &&
strncmp(ep->line, "cua", 3) ?
ep->line : ep->line + 3,
maxhost, maxhost, *p ? p : "-");
then = (time_t)ep->tv.tv_sec;
pr_attime(&then, &now);
longidle = pr_idle(ep->idle);
(void)printf("%.*s\n", argwidth - longidle, ep->args);
}
(void)kvm_close(kd);
exit(0);
}