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freebsd-skq/bin/ps/keyword.c
imp 7e6cabd06e Renumber copyright clause 4 
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00

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/*-
* 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[] = "@(#)keyword.c 8.5 (Berkeley) 4/2/94";
#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/sysctl.h>
#include <sys/user.h>
#include <err.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <libxo/xo.h>
#include "ps.h"
static VAR *findvar(char *, int, char **header);
static int vcmp(const void *, const void *);
/* Compute offset in common structures. */
#define KOFF(x) offsetof(struct kinfo_proc, x)
#define ROFF(x) offsetof(struct rusage, x)
#define LWPFMT "d"
#define NLWPFMT "d"
#define UIDFMT "u"
#define PIDFMT "d"
/* PLEASE KEEP THE TABLE BELOW SORTED ALPHABETICALLY!!! */
static VAR var[] = {
{"%cpu", "%CPU", NULL, "percent-cpu", 0, pcpu, 0, CHAR, NULL, 0},
{"%mem", "%MEM", NULL, "percent-memory", 0, pmem, 0, CHAR, NULL, 0},
{"acflag", "ACFLG", NULL, "accounting-flag", 0, kvar, KOFF(ki_acflag),
USHORT, "x", 0},
{"acflg", "", "acflag", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"args", "COMMAND", NULL, "arguments", COMM|LJUST|USER, arguments, 0,
CHAR, NULL, 0},
{"blocked", "", "sigmask", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"caught", "", "sigcatch", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"class", "CLASS", NULL, "login-class", LJUST, loginclass, 0, CHAR,
NULL, 0},
{"comm", "COMMAND", NULL, "command", LJUST, ucomm, 0, CHAR, NULL, 0},
{"command", "COMMAND", NULL, "command", COMM|LJUST|USER, command, 0,
CHAR, NULL, 0},
{"cow", "COW", NULL, "copy-on-write-faults", 0, kvar, KOFF(ki_cow),
UINT, "u", 0},
{"cpu", "CPU", NULL, "cpu-usage", 0, kvar, KOFF(ki_estcpu), UINT, "d",
0},
{"cputime", "", "time", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"dsiz", "DSIZ", NULL, "data-size", 0, kvar, KOFF(ki_dsize), PGTOK,
"ld", 0},
{"egid", "", "gid", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"egroup", "", "group", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"emul", "EMUL", NULL, "emulation-envirnment", LJUST, emulname, 0,
CHAR, NULL, 0},
{"etime", "ELAPSED", NULL, "elapsed-time", USER, elapsed, 0, CHAR,
NULL, 0},
{"etimes", "ELAPSED", NULL, "elapsed-times", USER, elapseds, 0, CHAR,
NULL, 0},
{"euid", "", "uid", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"f", "F", NULL, "flags", 0, kvar, KOFF(ki_flag), LONG, "lx", 0},
{"f2", "F2", NULL, "flags2", 0, kvar, KOFF(ki_flag2), INT, "08x", 0},
{"fib", "FIB", NULL, "fib", 0, kvar, KOFF(ki_fibnum), INT, "d", 0},
{"flags", "", "f", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"flags2", "", "f2", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"gid", "GID", NULL, "gid", 0, kvar, KOFF(ki_groups), UINT, UIDFMT, 0},
{"group", "GROUP", NULL, "group", LJUST, egroupname, 0, CHAR, NULL, 0},
{"ignored", "", "sigignore", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"inblk", "INBLK", NULL, "read-blocks", USER, rvar, ROFF(ru_inblock),
LONG, "ld", 0},
{"inblock", "", "inblk", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"jid", "JID", NULL, "jail-id", 0, kvar, KOFF(ki_jid), INT, "d", 0},
{"jobc", "JOBC", NULL, "job-control-count", 0, kvar, KOFF(ki_jobc),
SHORT, "d", 0},
{"ktrace", "KTRACE", NULL, "ktrace", 0, kvar, KOFF(ki_traceflag), INT,
"x", 0},
{"label", "LABEL", NULL, "label", LJUST, label, 0, CHAR, NULL, 0},
{"lim", "LIM", NULL, "memory-limit", 0, maxrss, 0, CHAR, NULL, 0},
{"lockname", "LOCK", NULL, "lock-name", LJUST, lockname, 0, CHAR, NULL,
0},
{"login", "LOGIN", NULL, "login-name", LJUST, logname, 0, CHAR, NULL,
0},
{"logname", "", "login", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"lstart", "STARTED", NULL, "start-time", LJUST|USER, lstarted, 0,
CHAR, NULL, 0},
{"lwp", "LWP", NULL, "process-thread-id", 0, kvar, KOFF(ki_tid), UINT,
LWPFMT, 0},
{"majflt", "MAJFLT", NULL, "major-faults", USER, rvar, ROFF(ru_majflt),
LONG, "ld", 0},
{"minflt", "MINFLT", NULL, "minor-faults", USER, rvar, ROFF(ru_minflt),
LONG, "ld", 0},
{"msgrcv", "MSGRCV", NULL, "received-messages", USER, rvar,
ROFF(ru_msgrcv), LONG, "ld", 0},
{"msgsnd", "MSGSND", NULL, "sent-messages", USER, rvar,
ROFF(ru_msgsnd), LONG, "ld", 0},
{"mwchan", "MWCHAN", NULL, "wait-channel", LJUST, mwchan, 0, CHAR,
NULL, 0},
{"ni", "", "nice", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"nice", "NI", NULL, "nice", 0, kvar, KOFF(ki_nice), CHAR, "d", 0},
{"nivcsw", "NIVCSW", NULL, "involuntary-context-switches", USER, rvar,
ROFF(ru_nivcsw), LONG, "ld", 0},
{"nlwp", "NLWP", NULL, "threads", 0, kvar, KOFF(ki_numthreads), UINT,
NLWPFMT, 0},
{"nsignals", "", "nsigs", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"nsigs", "NSIGS", NULL, "signals-taken", USER, rvar,
ROFF(ru_nsignals), LONG, "ld", 0},
{"nswap", "NSWAP", NULL, "swaps", USER, rvar, ROFF(ru_nswap), LONG,
"ld", 0},
{"nvcsw", "NVCSW", NULL, "voluntary-context-switches", USER, rvar,
ROFF(ru_nvcsw), LONG, "ld", 0},
{"nwchan", "NWCHAN", NULL, "wait-channel-address", LJUST, nwchan, 0,
CHAR, NULL, 0},
{"oublk", "OUBLK", NULL, "written-blocks", USER, rvar,
ROFF(ru_oublock), LONG, "ld", 0},
{"oublock", "", "oublk", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"paddr", "PADDR", NULL, "process-address", 0, kvar, KOFF(ki_paddr),
KPTR, "lx", 0},
{"pagein", "PAGEIN", NULL, "pageins", USER, pagein, 0, CHAR, NULL, 0},
{"pcpu", "", "%cpu", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"pending", "", "sig", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"pgid", "PGID", NULL, "process-group", 0, kvar, KOFF(ki_pgid), UINT,
PIDFMT, 0},
{"pid", "PID", NULL, "pid", 0, kvar, KOFF(ki_pid), UINT, PIDFMT, 0},
{"pmem", "", "%mem", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"ppid", "PPID", NULL, "ppid", 0, kvar, KOFF(ki_ppid), UINT, PIDFMT, 0},
{"pri", "PRI", NULL, "priority", 0, pri, 0, CHAR, NULL, 0},
{"re", "RE", NULL, "residency-time", INF127, kvar, KOFF(ki_swtime),
UINT, "d", 0},
{"rgid", "RGID", NULL, "real-gid", 0, kvar, KOFF(ki_rgid), UINT,
UIDFMT, 0},
{"rgroup", "RGROUP", NULL, "real-group", LJUST, rgroupname, 0, CHAR,
NULL, 0},
{"rss", "RSS", NULL, "rss", 0, kvar, KOFF(ki_rssize), PGTOK, "ld", 0},
{"rtprio", "RTPRIO", NULL, "realtime-priority", 0, priorityr,
KOFF(ki_pri), CHAR, NULL, 0},
{"ruid", "RUID", NULL, "real-uid", 0, kvar, KOFF(ki_ruid), UINT,
UIDFMT, 0},
{"ruser", "RUSER", NULL, "real-user", LJUST, runame, 0, CHAR, NULL, 0},
{"sid", "SID", NULL, "sid", 0, kvar, KOFF(ki_sid), UINT, PIDFMT, 0},
{"sig", "PENDING", NULL, "signals-pending", 0, kvar, KOFF(ki_siglist),
INT, "x", 0},
{"sigcatch", "CAUGHT", NULL, "signals-caught", 0, kvar,
KOFF(ki_sigcatch), UINT, "x", 0},
{"sigignore", "IGNORED", NULL, "signals-ignored", 0, kvar,
KOFF(ki_sigignore), UINT, "x", 0},
{"sigmask", "BLOCKED", NULL, "signal-mask", 0, kvar, KOFF(ki_sigmask),
UINT, "x", 0},
{"sl", "SL", NULL, "sleep-time", INF127, kvar, KOFF(ki_slptime), UINT,
"d", 0},
{"ssiz", "SSIZ", NULL, "stack-size", 0, kvar, KOFF(ki_ssize), PGTOK,
"ld", 0},
{"start", "STARTED", NULL, "start-time", LJUST|USER, started, 0, CHAR,
NULL, 0},
{"stat", "", "state", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"state", "STAT", NULL, "state", LJUST, state, 0, CHAR, NULL, 0},
{"svgid", "SVGID", NULL, "saved-gid", 0, kvar, KOFF(ki_svgid), UINT,
UIDFMT, 0},
{"svuid", "SVUID", NULL, "saved-uid", 0, kvar, KOFF(ki_svuid), UINT,
UIDFMT, 0},
{"systime", "SYSTIME", NULL, "system-time", USER, systime, 0, CHAR,
NULL, 0},
{"tdaddr", "TDADDR", NULL, "thread-address", 0, kvar, KOFF(ki_tdaddr),
KPTR, "lx", 0},
{"tdev", "TDEV", NULL, "terminal-device", 0, tdev, 0, CHAR, NULL, 0},
{"tdnam", "TDNAM", NULL, "terminal-device-name", LJUST, tdnam, 0, CHAR,
NULL, 0},
{"time", "TIME", NULL, "cpu-time", USER, cputime, 0, CHAR, NULL, 0},
{"tpgid", "TPGID", NULL, "terminal-process-gid", 0, kvar,
KOFF(ki_tpgid), UINT, PIDFMT, 0},
{"tracer", "TRACER", NULL, "tracer", 0, kvar, KOFF(ki_tracer), UINT,
PIDFMT, 0},
{"tsid", "TSID", NULL, "terminal-sid", 0, kvar, KOFF(ki_tsid), UINT,
PIDFMT, 0},
{"tsiz", "TSIZ", NULL, "text-size", 0, kvar, KOFF(ki_tsize), PGTOK,
"ld", 0},
{"tt", "TT ", NULL, "terminal-name", 0, tname, 0, CHAR, NULL, 0},
{"tty", "TTY", NULL, "tty", LJUST, longtname, 0, CHAR, NULL, 0},
{"ucomm", "UCOMM", NULL, "accounting-name", LJUST, ucomm, 0, CHAR,
NULL, 0},
{"uid", "UID", NULL, "uid", 0, kvar, KOFF(ki_uid), UINT, UIDFMT, 0},
{"upr", "UPR", NULL, "user-priority", 0, upr, 0, CHAR, NULL, 0},
{"uprocp", "UPROCP", NULL, "process-address", 0, kvar, KOFF(ki_paddr),
KPTR, "lx", 0},
{"user", "USER", NULL, "user", LJUST, uname, 0, CHAR, NULL, 0},
{"usertime", "USERTIME", NULL, "user-time", USER, usertime, 0, CHAR,
NULL, 0},
{"usrpri", "", "upr", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"vsize", "", "vsz", NULL, 0, NULL, 0, CHAR, NULL, 0},
{"vsz", "VSZ", NULL, "virtual-size", 0, vsize, 0, CHAR, NULL, 0},
{"wchan", "WCHAN", NULL, "wait-channel", LJUST, wchan, 0, CHAR, NULL,
0},
{"xstat", "XSTAT", NULL, "exit-status", 0, kvar, KOFF(ki_xstat),
USHORT, "x", 0},
{"", NULL, NULL, NULL, 0, NULL, 0, CHAR, NULL, 0},
};
void
showkey(void)
{
VAR *v;
int i;
const char *p, *sep;
i = 0;
sep = "";
xo_open_list("key");
for (v = var; *(p = v->name); ++v) {
int len = strlen(p);
if (termwidth && (i += len + 1) > termwidth) {
i = len;
sep = "\n";
}
xo_emit("{P:/%s}{l:key/%s}", sep, p);
sep = " ";
}
xo_emit("\n");
xo_close_list("key");
xo_finish();
}
void
parsefmt(const char *p, int user)
{
char *tempstr, *tempstr1;
#define FMTSEP " \t,\n"
tempstr1 = tempstr = strdup(p);
while (tempstr && *tempstr) {
char *cp, *hp;
VAR *v;
struct varent *vent;
/*
* If an item contains an equals sign, it specifies a column
* header, may contain embedded separator characters and
* is always the last item.
*/
if (tempstr[strcspn(tempstr, "="FMTSEP)] != '=')
while ((cp = strsep(&tempstr, FMTSEP)) != NULL &&
*cp == '\0')
/* void */;
else {
cp = tempstr;
tempstr = NULL;
}
if (cp == NULL || !(v = findvar(cp, user, &hp)))
continue;
if (!user) {
/*
* If the user is NOT adding this field manually,
* get on with our lives if this VAR is already
* represented in the list.
*/
vent = find_varentry(v);
if (vent != NULL)
continue;
}
if ((vent = malloc(sizeof(struct varent))) == NULL)
errx(1, "malloc failed");
vent->header = v->header;
if (hp) {
hp = strdup(hp);
if (hp)
vent->header = hp;
}
vent->var = malloc(sizeof(*vent->var));
if (vent->var == NULL)
errx(1, "malloc failed");
memcpy(vent->var, v, sizeof(*vent->var));
STAILQ_INSERT_TAIL(&varlist, vent, next_ve);
}
free(tempstr1);
if (STAILQ_EMPTY(&varlist)) {
warnx("no valid keywords; valid keywords:");
showkey();
exit(1);
}
}
static VAR *
findvar(char *p, int user, char **header)
{
size_t rflen;
VAR *v, key;
char *hp, *realfmt;
hp = strchr(p, '=');
if (hp)
*hp++ = '\0';
key.name = p;
v = bsearch(&key, var, sizeof(var)/sizeof(VAR) - 1, sizeof(VAR), vcmp);
if (v && v->alias) {
/*
* If the user specified an alternate-header for this
* (aliased) format-name, then we need to copy that
* alternate-header when making the recursive call to
* process the alias.
*/
if (hp == NULL)
parsefmt(v->alias, user);
else {
/*
* XXX - This processing will not be correct for
* any alias which expands into a list of format
* keywords. Presently there are no aliases
* which do that.
*/
rflen = strlen(v->alias) + strlen(hp) + 2;
realfmt = malloc(rflen);
if (realfmt == NULL)
errx(1, "malloc failed");
snprintf(realfmt, rflen, "%s=%s", v->alias, hp);
parsefmt(realfmt, user);
free(realfmt);
}
return ((VAR *)NULL);
}
if (!v) {
warnx("%s: keyword not found", p);
eval = 1;
}
if (header)
*header = hp;
return (v);
}
static int
vcmp(const void *a, const void *b)
{
return (strcmp(((const VAR *)a)->name, ((const VAR *)b)->name));
}
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