freebsd-dev/bin/ps/print.c
Edward Tomasz Napierala 6f47d67bfe Make ps(1) flag processes in capsicum(4) capability mode with "C".
Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
2017-09-06 16:34:42 +00:00

841 lines
17 KiB
C

/*-
* Copyright (c) 1990, 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. 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)print.c 8.6 (Berkeley) 4/16/94";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/proc.h>
#include <sys/stat.h>
#include <sys/mac.h>
#include <sys/user.h>
#include <sys/sysctl.h>
#include <sys/vmmeter.h>
#include <err.h>
#include <grp.h>
#include <langinfo.h>
#include <locale.h>
#include <math.h>
#include <nlist.h>
#include <pwd.h>
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <vis.h>
#include <libxo/xo.h>
#include "ps.h"
#define COMMAND_WIDTH 16
#define ARGUMENTS_WIDTH 16
#define ps_pgtok(a) (((a) * getpagesize()) / 1024)
void
printheader(void)
{
VAR *v;
struct varent *vent;
STAILQ_FOREACH(vent, &varlist, next_ve)
if (*vent->header != '\0')
break;
if (!vent)
return;
STAILQ_FOREACH(vent, &varlist, next_ve) {
v = vent->var;
if (v->flag & LJUST) {
if (STAILQ_NEXT(vent, next_ve) == NULL) /* last one */
xo_emit("{T:/%s}", vent->header);
else
xo_emit("{T:/%-*s}", v->width, vent->header);
} else
xo_emit("{T:/%*s}", v->width, vent->header);
if (STAILQ_NEXT(vent, next_ve) != NULL)
xo_emit("{P: }");
}
xo_emit("\n");
}
char *
arguments(KINFO *k, VARENT *ve)
{
char *vis_args;
if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
xo_errx(1, "malloc failed");
strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
if (STAILQ_NEXT(ve, next_ve) != NULL && strlen(vis_args) > ARGUMENTS_WIDTH)
vis_args[ARGUMENTS_WIDTH] = '\0';
return (vis_args);
}
char *
command(KINFO *k, VARENT *ve)
{
char *vis_args, *vis_env, *str;
if (cflag) {
/* If it is the last field, then don't pad */
if (STAILQ_NEXT(ve, next_ve) == NULL) {
asprintf(&str, "%s%s%s%s%s",
k->ki_d.prefix ? k->ki_d.prefix : "",
k->ki_p->ki_comm,
(showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "",
(showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "",
(showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : "");
} else
str = strdup(k->ki_p->ki_comm);
return (str);
}
if ((vis_args = malloc(strlen(k->ki_args) * 4 + 1)) == NULL)
xo_errx(1, "malloc failed");
strvis(vis_args, k->ki_args, VIS_TAB | VIS_NL | VIS_NOSLASH);
if (STAILQ_NEXT(ve, next_ve) == NULL) {
/* last field */
if (k->ki_env) {
if ((vis_env = malloc(strlen(k->ki_env) * 4 + 1))
== NULL)
xo_errx(1, "malloc failed");
strvis(vis_env, k->ki_env,
VIS_TAB | VIS_NL | VIS_NOSLASH);
} else
vis_env = NULL;
asprintf(&str, "%s%s%s%s",
k->ki_d.prefix ? k->ki_d.prefix : "",
vis_env ? vis_env : "",
vis_env ? " " : "",
vis_args);
if (vis_env != NULL)
free(vis_env);
free(vis_args);
} else {
/* ki_d.prefix & ki_env aren't shown for interim fields */
str = vis_args;
if (strlen(str) > COMMAND_WIDTH)
str[COMMAND_WIDTH] = '\0';
}
return (str);
}
char *
ucomm(KINFO *k, VARENT *ve)
{
char *str;
if (STAILQ_NEXT(ve, next_ve) == NULL) { /* last field, don't pad */
asprintf(&str, "%s%s%s%s%s",
k->ki_d.prefix ? k->ki_d.prefix : "",
k->ki_p->ki_comm,
(showthreads && k->ki_p->ki_numthreads > 1) ? "/" : "",
(showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_tdname : "",
(showthreads && k->ki_p->ki_numthreads > 1) ? k->ki_p->ki_moretdname : "");
} else {
if (showthreads && k->ki_p->ki_numthreads > 1)
asprintf(&str, "%s/%s%s", k->ki_p->ki_comm,
k->ki_p->ki_tdname, k->ki_p->ki_moretdname);
else
str = strdup(k->ki_p->ki_comm);
}
return (str);
}
char *
tdnam(KINFO *k, VARENT *ve __unused)
{
char *str;
if (showthreads && k->ki_p->ki_numthreads > 1)
asprintf(&str, "%s%s", k->ki_p->ki_tdname,
k->ki_p->ki_moretdname);
else
str = strdup(" ");
return (str);
}
char *
logname(KINFO *k, VARENT *ve __unused)
{
if (*k->ki_p->ki_login == '\0')
return (NULL);
return (strdup(k->ki_p->ki_login));
}
char *
state(KINFO *k, VARENT *ve __unused)
{
long flag, tdflags;
char *cp, *buf;
buf = malloc(16);
if (buf == NULL)
xo_errx(1, "malloc failed");
flag = k->ki_p->ki_flag;
tdflags = k->ki_p->ki_tdflags; /* XXXKSE */
cp = buf;
switch (k->ki_p->ki_stat) {
case SSTOP:
*cp = 'T';
break;
case SSLEEP:
if (tdflags & TDF_SINTR) /* interruptable (long) */
*cp = k->ki_p->ki_slptime >= MAXSLP ? 'I' : 'S';
else
*cp = 'D';
break;
case SRUN:
case SIDL:
*cp = 'R';
break;
case SWAIT:
*cp = 'W';
break;
case SLOCK:
*cp = 'L';
break;
case SZOMB:
*cp = 'Z';
break;
default:
*cp = '?';
}
cp++;
if (!(flag & P_INMEM))
*cp++ = 'W';
if (k->ki_p->ki_nice < NZERO || k->ki_p->ki_pri.pri_class == PRI_REALTIME)
*cp++ = '<';
else if (k->ki_p->ki_nice > NZERO || k->ki_p->ki_pri.pri_class == PRI_IDLE)
*cp++ = 'N';
if (flag & P_TRACED)
*cp++ = 'X';
if (flag & P_WEXIT && k->ki_p->ki_stat != SZOMB)
*cp++ = 'E';
if (flag & P_PPWAIT)
*cp++ = 'V';
if ((flag & P_SYSTEM) || k->ki_p->ki_lock > 0)
*cp++ = 'L';
if ((k->ki_p->ki_cr_flags & CRED_FLAG_CAPMODE) != 0)
*cp++ = 'C';
if (k->ki_p->ki_kiflag & KI_SLEADER)
*cp++ = 's';
if ((flag & P_CONTROLT) && k->ki_p->ki_pgid == k->ki_p->ki_tpgid)
*cp++ = '+';
if (flag & P_JAILED)
*cp++ = 'J';
*cp = '\0';
return (buf);
}
#define scalepri(x) ((x) - PZERO)
char *
pri(KINFO *k, VARENT *ve __unused)
{
char *str;
asprintf(&str, "%d", scalepri(k->ki_p->ki_pri.pri_level));
return (str);
}
char *
upr(KINFO *k, VARENT *ve __unused)
{
char *str;
asprintf(&str, "%d", scalepri(k->ki_p->ki_pri.pri_user));
return (str);
}
#undef scalepri
char *
uname(KINFO *k, VARENT *ve __unused)
{
return (strdup(user_from_uid(k->ki_p->ki_uid, 0)));
}
char *
egroupname(KINFO *k, VARENT *ve __unused)
{
return (strdup(group_from_gid(k->ki_p->ki_groups[0], 0)));
}
char *
rgroupname(KINFO *k, VARENT *ve __unused)
{
return (strdup(group_from_gid(k->ki_p->ki_rgid, 0)));
}
char *
runame(KINFO *k, VARENT *ve __unused)
{
return (strdup(user_from_uid(k->ki_p->ki_ruid, 0)));
}
char *
tdev(KINFO *k, VARENT *ve __unused)
{
dev_t dev;
char *str;
dev = k->ki_p->ki_tdev;
if (dev == NODEV)
str = strdup("-");
else
asprintf(&str, "%#jx", (uintmax_t)dev);
return (str);
}
char *
tname(KINFO *k, VARENT *ve __unused)
{
dev_t dev;
char *ttname, *str;
dev = k->ki_p->ki_tdev;
if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
str = strdup("- ");
else {
if (strncmp(ttname, "tty", 3) == 0 ||
strncmp(ttname, "cua", 3) == 0)
ttname += 3;
if (strncmp(ttname, "pts/", 4) == 0)
ttname += 4;
asprintf(&str, "%s%c", ttname,
k->ki_p->ki_kiflag & KI_CTTY ? ' ' : '-');
}
return (str);
}
char *
longtname(KINFO *k, VARENT *ve __unused)
{
dev_t dev;
const char *ttname;
dev = k->ki_p->ki_tdev;
if (dev == NODEV || (ttname = devname(dev, S_IFCHR)) == NULL)
ttname = "-";
return (strdup(ttname));
}
char *
started(KINFO *k, VARENT *ve __unused)
{
time_t then;
struct tm *tp;
size_t buflen = 100;
char *buf;
if (!k->ki_valid)
return (NULL);
buf = malloc(buflen);
if (buf == NULL)
xo_errx(1, "malloc failed");
then = k->ki_p->ki_start.tv_sec;
tp = localtime(&then);
if (now - k->ki_p->ki_start.tv_sec < 24 * 3600) {
(void)strftime(buf, buflen, "%H:%M ", tp);
} else if (now - k->ki_p->ki_start.tv_sec < 7 * 86400) {
(void)strftime(buf, buflen, "%a%H ", tp);
} else
(void)strftime(buf, buflen, "%e%b%y", tp);
return (buf);
}
char *
lstarted(KINFO *k, VARENT *ve __unused)
{
time_t then;
char *buf;
size_t buflen = 100;
if (!k->ki_valid)
return (NULL);
buf = malloc(buflen);
if (buf == NULL)
xo_errx(1, "malloc failed");
then = k->ki_p->ki_start.tv_sec;
(void)strftime(buf, buflen, "%c", localtime(&then));
return (buf);
}
char *
lockname(KINFO *k, VARENT *ve __unused)
{
char *str;
if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
if (k->ki_p->ki_lockname[0] != 0)
str = strdup(k->ki_p->ki_lockname);
else
str = strdup("???");
} else
str = NULL;
return (str);
}
char *
wchan(KINFO *k, VARENT *ve __unused)
{
char *str;
if (k->ki_p->ki_wchan) {
if (k->ki_p->ki_wmesg[0] != 0)
str = strdup(k->ki_p->ki_wmesg);
else
asprintf(&str, "%lx", (long)k->ki_p->ki_wchan);
} else
str = NULL;
return (str);
}
char *
nwchan(KINFO *k, VARENT *ve __unused)
{
char *str;
if (k->ki_p->ki_wchan)
asprintf(&str, "%0lx", (long)k->ki_p->ki_wchan);
else
str = NULL;
return (str);
}
char *
mwchan(KINFO *k, VARENT *ve __unused)
{
char *str;
if (k->ki_p->ki_wchan) {
if (k->ki_p->ki_wmesg[0] != 0)
str = strdup(k->ki_p->ki_wmesg);
else
asprintf(&str, "%lx", (long)k->ki_p->ki_wchan);
} else if (k->ki_p->ki_kiflag & KI_LOCKBLOCK) {
if (k->ki_p->ki_lockname[0]) {
str = strdup(k->ki_p->ki_lockname);
} else
str = strdup("???");
} else
str = NULL;
return (str);
}
char *
vsize(KINFO *k, VARENT *ve __unused)
{
char *str;
asprintf(&str, "%lu", (u_long)(k->ki_p->ki_size / 1024));
return (str);
}
static char *
printtime(KINFO *k, VARENT *ve __unused, long secs, long psecs)
/* psecs is "parts" of a second. first micro, then centi */
{
static char decimal_point;
char *str;
if (decimal_point == '\0')
decimal_point = localeconv()->decimal_point[0];
if (!k->ki_valid) {
secs = 0;
psecs = 0;
} else {
/* round and scale to 100's */
psecs = (psecs + 5000) / 10000;
secs += psecs / 100;
psecs = psecs % 100;
}
asprintf(&str, "%ld:%02ld%c%02ld",
secs / 60, secs % 60, decimal_point, psecs);
return (str);
}
char *
cputime(KINFO *k, VARENT *ve)
{
long secs, psecs;
/*
* This counts time spent handling interrupts. We could
* fix this, but it is not 100% trivial (and interrupt
* time fractions only work on the sparc anyway). XXX
*/
secs = k->ki_p->ki_runtime / 1000000;
psecs = k->ki_p->ki_runtime % 1000000;
if (sumrusage) {
secs += k->ki_p->ki_childtime.tv_sec;
psecs += k->ki_p->ki_childtime.tv_usec;
}
return (printtime(k, ve, secs, psecs));
}
char *
systime(KINFO *k, VARENT *ve)
{
long secs, psecs;
secs = k->ki_p->ki_rusage.ru_stime.tv_sec;
psecs = k->ki_p->ki_rusage.ru_stime.tv_usec;
if (sumrusage) {
secs += k->ki_p->ki_childstime.tv_sec;
psecs += k->ki_p->ki_childstime.tv_usec;
}
return (printtime(k, ve, secs, psecs));
}
char *
usertime(KINFO *k, VARENT *ve)
{
long secs, psecs;
secs = k->ki_p->ki_rusage.ru_utime.tv_sec;
psecs = k->ki_p->ki_rusage.ru_utime.tv_usec;
if (sumrusage) {
secs += k->ki_p->ki_childutime.tv_sec;
psecs += k->ki_p->ki_childutime.tv_usec;
}
return (printtime(k, ve, secs, psecs));
}
char *
elapsed(KINFO *k, VARENT *ve __unused)
{
time_t val;
int days, hours, mins, secs;
char *str;
if (!k->ki_valid)
return (NULL);
val = now - k->ki_p->ki_start.tv_sec;
days = val / (24 * 60 * 60);
val %= 24 * 60 * 60;
hours = val / (60 * 60);
val %= 60 * 60;
mins = val / 60;
secs = val % 60;
if (days != 0)
asprintf(&str, "%3d-%02d:%02d:%02d", days, hours, mins, secs);
else if (hours != 0)
asprintf(&str, "%02d:%02d:%02d", hours, mins, secs);
else
asprintf(&str, "%02d:%02d", mins, secs);
return (str);
}
char *
elapseds(KINFO *k, VARENT *ve __unused)
{
time_t val;
char *str;
if (!k->ki_valid)
return (NULL);
val = now - k->ki_p->ki_start.tv_sec;
asprintf(&str, "%jd", (intmax_t)val);
return (str);
}
double
getpcpu(const KINFO *k)
{
static int failure;
if (!nlistread)
failure = donlist();
if (failure)
return (0.0);
#define fxtofl(fixpt) ((double)(fixpt) / fscale)
/* XXX - I don't like this */
if (k->ki_p->ki_swtime == 0 || (k->ki_p->ki_flag & P_INMEM) == 0)
return (0.0);
if (rawcpu)
return (100.0 * fxtofl(k->ki_p->ki_pctcpu));
return (100.0 * fxtofl(k->ki_p->ki_pctcpu) /
(1.0 - exp(k->ki_p->ki_swtime * log(fxtofl(ccpu)))));
}
char *
pcpu(KINFO *k, VARENT *ve __unused)
{
char *str;
asprintf(&str, "%.1f", getpcpu(k));
return (str);
}
static double
getpmem(KINFO *k)
{
static int failure;
double fracmem;
if (!nlistread)
failure = donlist();
if (failure)
return (0.0);
if ((k->ki_p->ki_flag & P_INMEM) == 0)
return (0.0);
/* XXX want pmap ptpages, segtab, etc. (per architecture) */
/* XXX don't have info about shared */
fracmem = ((float)k->ki_p->ki_rssize) / mempages;
return (100.0 * fracmem);
}
char *
pmem(KINFO *k, VARENT *ve __unused)
{
char *str;
asprintf(&str, "%.1f", getpmem(k));
return (str);
}
char *
pagein(KINFO *k, VARENT *ve __unused)
{
char *str;
asprintf(&str, "%ld", k->ki_valid ? k->ki_p->ki_rusage.ru_majflt : 0);
return (str);
}
/* ARGSUSED */
char *
maxrss(KINFO *k __unused, VARENT *ve __unused)
{
/* XXX not yet */
return (NULL);
}
char *
priorityr(KINFO *k, VARENT *ve __unused)
{
struct priority *lpri;
char *str;
unsigned class, level;
lpri = &k->ki_p->ki_pri;
class = lpri->pri_class;
level = lpri->pri_level;
switch (class) {
case PRI_ITHD:
asprintf(&str, "intr:%u", level);
break;
case PRI_REALTIME:
asprintf(&str, "real:%u", level);
break;
case PRI_TIMESHARE:
asprintf(&str, "normal");
break;
case PRI_IDLE:
asprintf(&str, "idle:%u", level);
break;
default:
asprintf(&str, "%u:%u", class, level);
break;
}
return (str);
}
/*
* Generic output routines. Print fields from various prototype
* structures.
*/
static char *
printval(void *bp, VAR *v)
{
static char ofmt[32] = "%";
const char *fcp;
char *cp, *str;
cp = ofmt + 1;
fcp = v->fmt;
while ((*cp++ = *fcp++));
#define CHKINF127(n) (((n) > 127) && (v->flag & INF127) ? 127 : (n))
switch (v->type) {
case CHAR:
(void)asprintf(&str, ofmt, *(char *)bp);
break;
case UCHAR:
(void)asprintf(&str, ofmt, *(u_char *)bp);
break;
case SHORT:
(void)asprintf(&str, ofmt, *(short *)bp);
break;
case USHORT:
(void)asprintf(&str, ofmt, *(u_short *)bp);
break;
case INT:
(void)asprintf(&str, ofmt, *(int *)bp);
break;
case UINT:
(void)asprintf(&str, ofmt, CHKINF127(*(u_int *)bp));
break;
case LONG:
(void)asprintf(&str, ofmt, *(long *)bp);
break;
case ULONG:
(void)asprintf(&str, ofmt, *(u_long *)bp);
break;
case KPTR:
(void)asprintf(&str, ofmt, *(u_long *)bp);
break;
case PGTOK:
(void)asprintf(&str, ofmt, ps_pgtok(*(u_long *)bp));
break;
default:
xo_errx(1, "unknown type %d", v->type);
}
return (str);
}
char *
kvar(KINFO *k, VARENT *ve)
{
VAR *v;
v = ve->var;
return (printval((char *)((char *)k->ki_p + v->off), v));
}
char *
rvar(KINFO *k, VARENT *ve)
{
VAR *v;
v = ve->var;
if (!k->ki_valid)
return (NULL);
return (printval((char *)((char *)(&k->ki_p->ki_rusage) + v->off), v));
}
char *
emulname(KINFO *k, VARENT *ve __unused)
{
return (strdup(k->ki_p->ki_emul));
}
char *
label(KINFO *k, VARENT *ve __unused)
{
char *string;
mac_t proclabel;
int error;
string = NULL;
if (mac_prepare_process_label(&proclabel) == -1) {
xo_warn("mac_prepare_process_label");
goto out;
}
error = mac_get_pid(k->ki_p->ki_pid, proclabel);
if (error == 0) {
if (mac_to_text(proclabel, &string) == -1)
string = NULL;
}
mac_free(proclabel);
out:
return (string);
}
char *
loginclass(KINFO *k, VARENT *ve __unused)
{
/*
* Don't display login class for system processes;
* login classes are used for resource limits,
* and limits don't apply to system processes.
*/
if (k->ki_p->ki_flag & P_SYSTEM) {
return (strdup("-"));
}
return (strdup(k->ki_p->ki_loginclass));
}