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/bin/ps/keyword.c

https://bitbucket.org/freebsd/freebsd-head/
C | 308 lines | 238 code | 18 blank | 52 comment | 34 complexity | 54ac1596ba6d46a7af49d7e7cb508820 MD5 | raw file
  1/*-
  2 * Copyright (c) 1990, 1993, 1994
  3 *	The Regents of the University of California.  All rights reserved.
  4 *
  5 * Redistribution and use in source and binary forms, with or without
  6 * modification, are permitted provided that the following conditions
  7 * are met:
  8 * 1. Redistributions of source code must retain the above copyright
  9 *    notice, this list of conditions and the following disclaimer.
 10 * 2. Redistributions in binary form must reproduce the above copyright
 11 *    notice, this list of conditions and the following disclaimer in the
 12 *    documentation and/or other materials provided with the distribution.
 13 * 4. Neither the name of the University nor the names of its contributors
 14 *    may be used to endorse or promote products derived from this software
 15 *    without specific prior written permission.
 16 *
 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 27 * SUCH DAMAGE.
 28 */
 29
 30#if 0
 31#ifndef lint
 32static char sccsid[] = "@(#)keyword.c	8.5 (Berkeley) 4/2/94";
 33#endif /* not lint */
 34#endif
 35#include <sys/cdefs.h>
 36__FBSDID("$FreeBSD$");
 37
 38#include <sys/param.h>
 39#include <sys/time.h>
 40#include <sys/resource.h>
 41#include <sys/proc.h>
 42#include <sys/sysctl.h>
 43#include <sys/user.h>
 44
 45#include <err.h>
 46#include <stddef.h>
 47#include <stdio.h>
 48#include <stdlib.h>
 49#include <string.h>
 50
 51#include "ps.h"
 52
 53static VAR *findvar(char *, int, char **header);
 54static int  vcmp(const void *, const void *);
 55
 56/* Compute offset in common structures. */
 57#define	KOFF(x)	offsetof(struct kinfo_proc, x)
 58#define	ROFF(x)	offsetof(struct rusage, x)
 59
 60#define	LWPFMT	"d"
 61#define	NLWPFMT	"d"
 62#define	UIDFMT	"u"
 63#define	PIDFMT	"d"
 64
 65/* PLEASE KEEP THE TABLE BELOW SORTED ALPHABETICALLY!!! */
 66static VAR var[] = {
 67	{"%cpu", "%CPU", NULL, 0, pcpu, 0, CHAR, NULL, 0},
 68	{"%mem", "%MEM", NULL, 0, pmem, 0, CHAR, NULL, 0},
 69	{"acflag", "ACFLG", NULL, 0, kvar, KOFF(ki_acflag), USHORT, "x", 0},
 70	{"acflg", "", "acflag", 0, NULL, 0, CHAR, NULL, 0},
 71	{"args", "COMMAND", NULL, COMM|LJUST|USER, arguments, 0,
 72		CHAR, NULL, 0},
 73	{"blocked", "", "sigmask", 0, NULL, 0, CHAR, NULL, 0},
 74	{"caught", "", "sigcatch", 0, NULL, 0, CHAR, NULL, 0},
 75	{"class", "CLASS", NULL, LJUST, loginclass, 0, CHAR, NULL, 0},
 76	{"comm", "COMMAND", NULL, LJUST, ucomm, 0, CHAR, NULL, 0},
 77	{"command", "COMMAND", NULL, COMM|LJUST|USER, command, 0,
 78		CHAR, NULL, 0},
 79	{"cow", "COW", NULL, 0, kvar, KOFF(ki_cow), UINT, "u", 0},
 80	{"cpu", "CPU", NULL, 0, kvar, KOFF(ki_estcpu), UINT, "d", 0},
 81	{"cputime", "", "time", 0, NULL, 0, CHAR, NULL, 0},
 82	{"dsiz", "DSIZ", NULL, 0, kvar, KOFF(ki_dsize), PGTOK, "ld", 0},
 83	{"egid", "", "gid", 0, NULL, 0, CHAR, NULL, 0},
 84	{"egroup", "", "group", 0, NULL, 0, CHAR, NULL, 0},
 85	{"emul", "EMUL", NULL, LJUST, emulname, 0, CHAR, NULL, 0},
 86	{"etime", "ELAPSED", NULL, USER, elapsed, 0, CHAR, NULL, 0},
 87	{"etimes", "ELAPSED", NULL, USER, elapseds, 0, CHAR, NULL, 0},
 88	{"euid", "", "uid", 0, NULL, 0, CHAR, NULL, 0},
 89	{"f", "F", NULL, 0, kvar, KOFF(ki_flag), INT, "x", 0},
 90	{"flags", "", "f", 0, NULL, 0, CHAR, NULL, 0},
 91	{"gid", "GID", NULL, 0, kvar, KOFF(ki_groups), UINT, UIDFMT, 0},
 92	{"group", "GROUP", NULL, LJUST, egroupname, 0, CHAR, NULL, 0},
 93	{"ignored", "", "sigignore", 0, NULL, 0, CHAR, NULL, 0},
 94	{"inblk", "INBLK", NULL, USER, rvar, ROFF(ru_inblock), LONG, "ld", 0},
 95	{"inblock", "", "inblk", 0, NULL, 0, CHAR, NULL, 0},
 96	{"jid", "JID", NULL, 0, kvar, KOFF(ki_jid), INT, "d", 0},
 97	{"jobc", "JOBC", NULL, 0, kvar, KOFF(ki_jobc), SHORT, "d", 0},
 98	{"ktrace", "KTRACE", NULL, 0, kvar, KOFF(ki_traceflag), INT, "x", 0},
 99	{"label", "LABEL", NULL, LJUST, label, 0, CHAR, NULL, 0},
100	{"lim", "LIM", NULL, 0, maxrss, 0, CHAR, NULL, 0},
101	{"lockname", "LOCK", NULL, LJUST, lockname, 0, CHAR, NULL, 0},
102	{"login", "LOGIN", NULL, LJUST, logname, 0, CHAR, NULL, 0},
103	{"logname", "", "login", 0, NULL, 0, CHAR, NULL, 0},
104	{"lstart", "STARTED", NULL, LJUST|USER, lstarted, 0, CHAR, NULL, 0},
105	{"lwp", "LWP", NULL, 0, kvar, KOFF(ki_tid), UINT, LWPFMT, 0},
106	{"majflt", "MAJFLT", NULL, USER, rvar, ROFF(ru_majflt), LONG, "ld", 0},
107	{"minflt", "MINFLT", NULL, USER, rvar, ROFF(ru_minflt), LONG, "ld", 0},
108	{"msgrcv", "MSGRCV", NULL, USER, rvar, ROFF(ru_msgrcv), LONG, "ld", 0},
109	{"msgsnd", "MSGSND", NULL, USER, rvar, ROFF(ru_msgsnd), LONG, "ld", 0},
110	{"mwchan", "MWCHAN", NULL, LJUST, mwchan, 0, CHAR, NULL, 0},
111	{"ni", "", "nice", 0, NULL, 0, CHAR, NULL, 0},
112	{"nice", "NI", NULL, 0, kvar, KOFF(ki_nice), CHAR, "d", 0},
113	{"nivcsw", "NIVCSW", NULL, USER, rvar, ROFF(ru_nivcsw), LONG, "ld", 0},
114	{"nlwp", "NLWP", NULL, 0, kvar, KOFF(ki_numthreads), UINT, NLWPFMT, 0},
115	{"nsignals", "", "nsigs", 0, NULL, 0, CHAR, NULL, 0},
116	{"nsigs", "NSIGS", NULL, USER, rvar, ROFF(ru_nsignals), LONG, "ld", 0},
117	{"nswap", "NSWAP", NULL, USER, rvar, ROFF(ru_nswap), LONG, "ld", 0},
118	{"nvcsw", "NVCSW", NULL, USER, rvar, ROFF(ru_nvcsw), LONG, "ld", 0},
119	{"nwchan", "NWCHAN", NULL, LJUST, nwchan, 0, CHAR, NULL, 0},
120	{"oublk", "OUBLK", NULL, USER, rvar, ROFF(ru_oublock), LONG, "ld", 0},
121	{"oublock", "", "oublk", 0, NULL, 0, CHAR, NULL, 0},
122	{"paddr", "PADDR", NULL, 0, kvar, KOFF(ki_paddr), KPTR, "lx", 0},
123	{"pagein", "PAGEIN", NULL, USER, pagein, 0, CHAR, NULL, 0},
124	{"pcpu", "", "%cpu", 0, NULL, 0, CHAR, NULL, 0},
125	{"pending", "", "sig", 0, NULL, 0, CHAR, NULL, 0},
126	{"pgid", "PGID", NULL, 0, kvar, KOFF(ki_pgid), UINT, PIDFMT, 0},
127	{"pid", "PID", NULL, 0, kvar, KOFF(ki_pid), UINT, PIDFMT, 0},
128	{"pmem", "", "%mem", 0, NULL, 0, CHAR, NULL, 0},
129	{"ppid", "PPID", NULL, 0, kvar, KOFF(ki_ppid), UINT, PIDFMT, 0},
130	{"pri", "PRI", NULL, 0, pri, 0, CHAR, NULL, 0},
131	{"re", "RE", NULL, INF127, kvar, KOFF(ki_swtime), UINT, "d", 0},
132	{"rgid", "RGID", NULL, 0, kvar, KOFF(ki_rgid), UINT, UIDFMT, 0},
133	{"rgroup", "RGROUP", NULL, LJUST, rgroupname, 0, CHAR, NULL, 0},
134	{"rss", "RSS", NULL, 0, kvar, KOFF(ki_rssize), PGTOK, "ld", 0},
135	{"rtprio", "RTPRIO", NULL, 0, priorityr, KOFF(ki_pri), CHAR, NULL, 0},
136	{"ruid", "RUID", NULL, 0, kvar, KOFF(ki_ruid), UINT, UIDFMT, 0},
137	{"ruser", "RUSER", NULL, LJUST, runame, 0, CHAR, NULL, 0},
138	{"sid", "SID", NULL, 0, kvar, KOFF(ki_sid), UINT, PIDFMT, 0},
139	{"sig", "PENDING", NULL, 0, kvar, KOFF(ki_siglist), INT, "x", 0},
140	{"sigcatch", "CAUGHT", NULL, 0, kvar, KOFF(ki_sigcatch), UINT, "x", 0},
141	{"sigignore", "IGNORED", NULL, 0, kvar, KOFF(ki_sigignore),
142		UINT, "x", 0},
143	{"sigmask", "BLOCKED", NULL, 0, kvar, KOFF(ki_sigmask), UINT, "x", 0},
144	{"sl", "SL", NULL, INF127, kvar, KOFF(ki_slptime), UINT, "d", 0},
145	{"ssiz", "SSIZ", NULL, 0, kvar, KOFF(ki_ssize), PGTOK, "ld", 0},
146	{"start", "STARTED", NULL, LJUST|USER, started, 0, CHAR, NULL, 0},
147	{"stat", "", "state", 0, NULL, 0, CHAR, NULL, 0},
148	{"state", "STAT", NULL, LJUST, state, 0, CHAR, NULL, 0},
149	{"svgid", "SVGID", NULL, 0, kvar, KOFF(ki_svgid), UINT, UIDFMT, 0},
150	{"svuid", "SVUID", NULL, 0, kvar, KOFF(ki_svuid), UINT, UIDFMT, 0},
151	{"systime", "SYSTIME", NULL, USER, systime, 0, CHAR, NULL, 0},
152	{"tdaddr", "TDADDR", NULL, 0, kvar, KOFF(ki_tdaddr), KPTR, "lx", 0},
153	{"tdev", "TDEV", NULL, 0, tdev, 0, CHAR, NULL, 0},
154	{"tdnam", "TDNAM", NULL, LJUST, tdnam, 0, CHAR, NULL, 0},
155	{"time", "TIME", NULL, USER, cputime, 0, CHAR, NULL, 0},
156	{"tpgid", "TPGID", NULL, 0, kvar, KOFF(ki_tpgid), UINT, PIDFMT, 0},
157	{"tsid", "TSID", NULL, 0, kvar, KOFF(ki_tsid), UINT, PIDFMT, 0},
158	{"tsiz", "TSIZ", NULL, 0, kvar, KOFF(ki_tsize), PGTOK, "ld", 0},
159	{"tt", "TT ", NULL, 0, tname, 0, CHAR, NULL, 0},
160	{"tty", "TTY", NULL, LJUST, longtname, 0, CHAR, NULL, 0},
161	{"ucomm", "UCOMM", NULL, LJUST, ucomm, 0, CHAR, NULL, 0},
162	{"uid", "UID", NULL, 0, kvar, KOFF(ki_uid), UINT, UIDFMT, 0},
163	{"upr", "UPR", NULL, 0, upr, 0, CHAR, NULL, 0},
164	{"uprocp", "UPROCP", NULL, 0, kvar, KOFF(ki_paddr), KPTR, "lx", 0},
165	{"user", "USER", NULL, LJUST, uname, 0, CHAR, NULL, 0},
166	{"usertime", "USERTIME", NULL, USER, usertime, 0, CHAR, NULL, 0},
167	{"usrpri", "", "upr", 0, NULL, 0, CHAR, NULL, 0},
168	{"vsize", "", "vsz", 0, NULL, 0, CHAR, NULL, 0},
169	{"vsz", "VSZ", NULL, 0, vsize, 0, CHAR, NULL, 0},
170	{"wchan", "WCHAN", NULL, LJUST, wchan, 0, CHAR, NULL, 0},
171	{"xstat", "XSTAT", NULL, 0, kvar, KOFF(ki_xstat), USHORT, "x", 0},
172	{"", NULL, NULL, 0, NULL, 0, CHAR, NULL, 0},
173};
174
175void
176showkey(void)
177{
178	VAR *v;
179	int i;
180	const char *p, *sep;
181
182	i = 0;
183	sep = "";
184	for (v = var; *(p = v->name); ++v) {
185		int len = strlen(p);
186		if (termwidth && (i += len + 1) > termwidth) {
187			i = len;
188			sep = "\n";
189		}
190		(void) printf("%s%s", sep, p);
191		sep = " ";
192	}
193	(void) printf("\n");
194}
195
196void
197parsefmt(const char *p, int user)
198{
199	char *tempstr, *tempstr1;
200
201#define		FMTSEP	" \t,\n"
202	tempstr1 = tempstr = strdup(p);
203	while (tempstr && *tempstr) {
204		char *cp, *hp;
205		VAR *v;
206		struct varent *vent;
207
208		/*
209		 * If an item contains an equals sign, it specifies a column
210		 * header, may contain embedded separator characters and
211		 * is always the last item.	
212		 */
213		if (tempstr[strcspn(tempstr, "="FMTSEP)] != '=')
214			while ((cp = strsep(&tempstr, FMTSEP)) != NULL &&
215			    *cp == '\0')
216				/* void */;
217		else {
218			cp = tempstr;
219			tempstr = NULL;
220		}
221		if (cp == NULL || !(v = findvar(cp, user, &hp)))
222			continue;
223		if (!user) {
224			/*
225			 * If the user is NOT adding this field manually,
226			 * get on with our lives if this VAR is already
227			 * represented in the list.
228			 */
229			vent = find_varentry(v);
230			if (vent != NULL)
231				continue;
232		}
233		if ((vent = malloc(sizeof(struct varent))) == NULL)
234			errx(1, "malloc failed");
235		vent->header = v->header;
236		if (hp) {
237			hp = strdup(hp);
238			if (hp)
239				vent->header = hp;
240		}
241		vent->var = malloc(sizeof(*vent->var));
242		if (vent->var == NULL)
243			errx(1, "malloc failed");
244		memcpy(vent->var, v, sizeof(*vent->var));
245		STAILQ_INSERT_TAIL(&varlist, vent, next_ve);
246	}
247	free(tempstr1);
248	if (STAILQ_EMPTY(&varlist)) {
249		warnx("no valid keywords; valid keywords:");
250		showkey();
251		exit(1);
252	}
253}
254
255static VAR *
256findvar(char *p, int user, char **header)
257{
258	size_t rflen;
259	VAR *v, key;
260	char *hp, *realfmt;
261
262	hp = strchr(p, '=');
263	if (hp)
264		*hp++ = '\0';
265
266	key.name = p;
267	v = bsearch(&key, var, sizeof(var)/sizeof(VAR) - 1, sizeof(VAR), vcmp);
268
269	if (v && v->alias) {
270		/*
271		 * If the user specified an alternate-header for this
272		 * (aliased) format-name, then we need to copy that
273		 * alternate-header when making the recursive call to
274		 * process the alias.
275		 */
276		if (hp == NULL)
277			parsefmt(v->alias, user);
278		else {
279			/*
280			 * XXX - This processing will not be correct for
281			 * any alias which expands into a list of format
282			 * keywords.  Presently there are no aliases
283			 * which do that.
284			 */
285			rflen = strlen(v->alias) + strlen(hp) + 2;
286			realfmt = malloc(rflen);
287			if (realfmt == NULL)
288				errx(1, "malloc failed");
289			snprintf(realfmt, rflen, "%s=%s", v->alias, hp);
290			parsefmt(realfmt, user);
291			free(realfmt);
292		}
293		return ((VAR *)NULL);
294	}
295	if (!v) {
296		warnx("%s: keyword not found", p);
297		eval = 1;
298	}
299	if (header)
300		*header = hp;
301	return (v);
302}
303
304static int
305vcmp(const void *a, const void *b)
306{
307        return (strcmp(((const VAR *)a)->name, ((const VAR *)b)->name));
308}