xref: /freebsd/bin/ps/keyword.c (revision 78704ef45793e56c8e064611c05c9bb8a0067e9f)
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  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  */
33 
34 #if 0
35 #ifndef lint
36 static char sccsid[] = "@(#)keyword.c	8.5 (Berkeley) 4/2/94";
37 #endif /* not lint */
38 #endif
39 #include <sys/cdefs.h>
40 __FBSDID("$FreeBSD$");
41 
42 #include <sys/param.h>
43 #include <sys/time.h>
44 #include <sys/resource.h>
45 #include <sys/proc.h>
46 #include <sys/sysctl.h>
47 #include <sys/user.h>
48 
49 #include <err.h>
50 #include <stddef.h>
51 #include <stdio.h>
52 #include <stdlib.h>
53 #include <string.h>
54 
55 #include "ps.h"
56 
57 static VAR *findvar(char *);
58 static int  vcmp(const void *, const void *);
59 
60 /* Compute offset in common structures. */
61 #define	KOFF(x)	offsetof(struct kinfo_proc, x)
62 #define	ROFF(x)	offsetof(struct rusage, x)
63 
64 #define	UIDFMT	"u"
65 #define	UIDLEN	5
66 #define	PIDFMT	"d"
67 #define	PIDLEN	5
68 #define USERLEN (MAXLOGNAME - 1)
69 
70 static VAR var[] = {
71 	{"%cpu", "%CPU", NULL, 0, pcpu, NULL, 4, 0, CHAR, NULL, 0},
72 	{"%mem", "%MEM", NULL, 0, pmem, NULL, 4, 0, CHAR, NULL, 0},
73 	{"acflag", "ACFLG", NULL, 0, kvar, NULL, 3, KOFF(ki_acflag), USHORT,
74 		"x", 0},
75 	{"acflg", "", "acflag", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
76 	{"args", "COMMAND", NULL, COMM|LJUST|USER, arguments, NULL, 16, 0,
77 		CHAR, NULL, 0},
78 	{"blocked", "", "sigmask", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
79 	{"caught", "", "sigcatch", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
80 	{"comm", "COMMAND", NULL, LJUST, ucomm, NULL, MAXCOMLEN, 0, CHAR,
81 		NULL, 0},
82 	{"command", "COMMAND", NULL, COMM|LJUST|USER, command, NULL, 16, 0,
83 		CHAR, NULL, 0},
84 	{"cpu", "CPU", NULL, 0, kvar, NULL, 3, KOFF(ki_estcpu), UINT, "d",
85 		0},
86 	{"cputime", "", "time", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
87 	{"etime", "ELAPSED", NULL, USER, elapsed, NULL, 9, 0, CHAR, NULL, 0},
88 	{"f", "F", NULL, 0, kvar, NULL, 7, KOFF(ki_flag), INT, "x", 0},
89 	{"flags", "", "f", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
90 	{"ignored", "", "sigignore", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
91 	{"inblk", "INBLK", NULL, USER, rvar, NULL, 4, ROFF(ru_inblock), LONG,
92 		"ld", 0},
93 	{"inblock", "", "inblk", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
94 	{"jobc", "JOBC", NULL, 0, kvar, NULL, 4, KOFF(ki_jobc), SHORT, "d",
95 		0},
96 	{"ktrace", "KTRACE", NULL, 0, kvar, NULL, 8, KOFF(ki_traceflag), INT,
97 		"x", 0},
98 	{"lim", "LIM", NULL, 0, maxrss, NULL, 5, 0, CHAR, NULL, 0},
99 	{"login", "LOGIN", NULL, LJUST, logname, NULL, MAXLOGNAME-1, 0, CHAR,
100 		NULL, 0},
101 	{"logname", "", "login", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
102 	{"lstart", "STARTED", NULL, LJUST|USER, lstarted, NULL, 28, 0, CHAR,
103 		NULL, 0},
104 	{"lvl", "LVL", NULL, LJUST, lattr, NULL, 3, 0, CHAR, NULL, 0},
105 	{"majflt", "MAJFLT", NULL, USER, rvar, NULL, 4, ROFF(ru_majflt),
106 		LONG, "ld", 0},
107 	{"minflt", "MINFLT", NULL, USER, rvar, NULL, 4, ROFF(ru_minflt),
108 		LONG, "ld", 0},
109 	{"msgrcv", "MSGRCV", NULL, USER, rvar, NULL, 4, ROFF(ru_msgrcv),
110 		LONG, "ld", 0},
111 	{"msgsnd", "MSGSND", NULL, USER, rvar, NULL, 4, ROFF(ru_msgsnd),
112 		LONG, "ld", 0},
113 	{"lockname", "LOCK", NULL, LJUST, lockname, NULL, 6, 0, CHAR, NULL,
114 		0},
115 	{"mwchan", "MWCHAN", NULL, LJUST, mwchan, NULL, 6, 0, CHAR, NULL, 0},
116 	{"ni", "", "nice", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
117 	{"nice", "NI", NULL, 0, kvar, NULL, 2, KOFF(ki_nice), CHAR, "d",
118 		0},
119 	{"nivcsw", "NIVCSW", NULL, USER, rvar, NULL, 5, ROFF(ru_nivcsw),
120 		LONG, "ld", 0},
121 	{"nsignals", "", "nsigs", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
122 	{"nsigs", "NSIGS", NULL, USER, rvar, NULL, 4, ROFF(ru_nsignals),
123 		LONG, "ld", 0},
124 	{"nswap", "NSWAP", NULL, USER, rvar, NULL, 4, ROFF(ru_nswap),
125 		LONG, "ld", 0},
126 	{"nvcsw", "NVCSW", NULL, USER, rvar, NULL, 5, ROFF(ru_nvcsw),
127 		LONG, "ld", 0},
128 	{"oublk", "OUBLK", NULL, USER, rvar, NULL, 4, ROFF(ru_oublock),
129 		LONG, "ld", 0},
130 	{"oublock", "", "oublk", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
131 	{"paddr", "PADDR", NULL, 0, kvar, NULL, 8, KOFF(ki_paddr), KPTR,
132 		"lx", 0},
133 	{"pagein", "PAGEIN", NULL, USER, pagein, NULL, 6, 0, CHAR, NULL, 0},
134 	{"pcpu", "", "%cpu", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
135 	{"pending", "", "sig", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
136 	{"pgid", "PGID", NULL, 0, kvar, NULL, PIDLEN, KOFF(ki_pgid), UINT,
137 		PIDFMT, 0},
138 	{"pid", "PID", NULL, 0, kvar, NULL, PIDLEN, KOFF(ki_pid), UINT,
139 		PIDFMT, 0},
140 	{"pmem", "", "%mem", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
141 	{"ppid", "PPID", NULL, 0, kvar, NULL, PIDLEN, KOFF(ki_ppid), UINT,
142 		PIDFMT, 0},
143 	{"pri", "PRI", NULL, 0, pri, NULL, 3, 0, CHAR, NULL, 0},
144 	{"re", "RE", NULL, 0, kvar, NULL, 3, KOFF(ki_swtime), UINT, "d",
145 		0},
146 	{"rgid", "RGID", NULL, 0, kvar, NULL, UIDLEN, KOFF(ki_rgid),
147 		UINT, UIDFMT, 0},
148 	{"rgroup", "RGROUP", NULL, LJUST|DSIZ, rgroupname, s_rgroupname,
149 		USERLEN, 0, CHAR, NULL, 0},
150 	{"rss", "RSS", NULL, 0, kvar, NULL, 4, KOFF(ki_rssize), PGTOK, "ld", 0},
151 	{"rtprio", "RTPRIO", NULL, 0, priorityr, NULL, 7, KOFF(ki_pri), CHAR,
152 		NULL, 0},
153 	{"ruid", "RUID", NULL, 0, kvar, NULL, UIDLEN, KOFF(ki_ruid),
154 		UINT, UIDFMT, 0},
155 	{"ruser", "RUSER", NULL, LJUST|DSIZ, runame, s_runame, USERLEN,
156 		0, CHAR, NULL, 0},
157 	{"sid", "SID", NULL, 0, kvar, NULL, PIDLEN, KOFF(ki_sid), UINT,
158 		PIDFMT, 0},
159 	{"sig", "PENDING", NULL, 0, kvar, NULL, 8, KOFF(ki_siglist), INT,
160 		"x", 0},
161 	{"sigcatch", "CAUGHT", NULL, 0, kvar, NULL, 8, KOFF(ki_sigcatch),
162 		UINT, "x", 0},
163 	{"sigignore", "IGNORED", NULL, 0, kvar, NULL, 8, KOFF(ki_sigignore),
164 		UINT, "x", 0},
165 	{"sigmask", "BLOCKED", NULL, 0, kvar, NULL, 8, KOFF(ki_sigmask),
166 		UINT, "x", 0},
167 	{"sl", "SL", NULL, 0, kvar, NULL, 3, KOFF(ki_slptime), UINT, "d",
168 		0},
169 	{"start", "STARTED", NULL, LJUST|USER, started, NULL, 7, 0, CHAR, NULL,
170 		0},
171 	{"stat", "", "state", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
172 	{"state", "STAT", NULL, 0, state, NULL, 4, 0, CHAR, NULL, 0},
173 	{"svgid", "SVGID", NULL, 0, kvar, NULL, UIDLEN, KOFF(ki_svgid),
174 		UINT, UIDFMT, 0},
175 	{"svuid", "SVUID", NULL, 0, kvar, NULL, UIDLEN, KOFF(ki_svuid),
176 		UINT, UIDFMT, 0},
177 	{"tdev", "TDEV", NULL, 0, tdev, NULL, 4, 0, CHAR, NULL, 0},
178 	{"time", "TIME", NULL, USER, cputime, NULL, 9, 0, CHAR, NULL, 0},
179 	{"tpgid", "TPGID", NULL, 0, kvar, NULL, 4, KOFF(ki_tpgid), UINT,
180 		PIDFMT, 0},
181 	{"tsid", "TSID", NULL, 0, kvar, NULL, PIDLEN, KOFF(ki_tsid), UINT,
182 		PIDFMT, 0},
183 	{"tsiz", "TSIZ", NULL, 0, kvar, NULL, 4, KOFF(ki_tsize), PGTOK, "ld", 0},
184 	{"tt", "TT ", NULL, 0, tname, NULL, 4, 0, CHAR, NULL, 0},
185 	{"tty", "TTY", NULL, LJUST, longtname, NULL, 8, 0, CHAR, NULL, 0},
186 	{"ucomm", "UCOMM", NULL, LJUST, ucomm, NULL, MAXCOMLEN, 0, CHAR, NULL,
187 		0},
188 	{"uid", "UID", NULL, 0, kvar, NULL, UIDLEN, KOFF(ki_uid), UINT,
189 		UIDFMT, 0},
190 	{"upr", "UPR", NULL, 0, kvar, NULL, 3, KOFF(ki_pri.pri_user), UCHAR,
191 		"d", 0},
192 	{"user", "USER", NULL, LJUST|DSIZ, uname, s_uname, USERLEN, 0, CHAR,
193 		NULL, 0},
194 	{"usrpri", "", "upr", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
195 	{"vsize", "", "vsz", 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
196 	{"vsz", "VSZ", NULL, 0, vsize, NULL, 5, 0, CHAR, NULL, 0},
197 	{"wchan", "WCHAN", NULL, LJUST, wchan, NULL, 6, 0, CHAR, NULL, 0},
198 	{"xstat", "XSTAT", NULL, 0, kvar, NULL, 4, KOFF(ki_xstat), USHORT,
199 		"x", 0},
200 	{"", NULL, NULL, 0, NULL, NULL, 0, 0, CHAR, NULL, 0},
201 };
202 
203 void
204 showkey(void)
205 {
206 	VAR *v;
207 	int i;
208 	const char *p, *sep;
209 
210 	i = 0;
211 	sep = "";
212 	for (v = var; *(p = v->name); ++v) {
213 		int len = strlen(p);
214 		if (termwidth && (i += len + 1) > termwidth) {
215 			i = len;
216 			sep = "\n";
217 		}
218 		(void) printf("%s%s", sep, p);
219 		sep = " ";
220 	}
221 	(void) printf("\n");
222 }
223 
224 void
225 parsefmt(const char *p)
226 {
227 	static struct varent *vtail;
228 	char *tempstr, *tempstr1;
229 
230 #define		FMTSEP	" \t,\n"
231 	tempstr1 = tempstr = strdup(p);
232 	while (tempstr && *tempstr) {
233 		char *cp;
234 		VAR *v;
235 		struct varent *vent;
236 
237 		/*
238 		 * If an item contains an equals sign, it specifies a column
239 		 * header, may contain embedded separator characters and
240 		 * is always the last item.
241 		 */
242 		if (tempstr[strcspn(tempstr, "="FMTSEP)] != '=')
243 			while ((cp = strsep(&tempstr, FMTSEP)) != NULL &&
244 			    *cp == '\0')
245 				/* void */;
246 		else {
247 			cp = tempstr;
248 			tempstr = NULL;
249 		}
250 		if (cp == NULL || !(v = findvar(cp)))
251 			continue;
252 		if ((vent = malloc(sizeof(struct varent))) == NULL)
253 			errx(1, "malloc failed");
254 		vent->var = malloc(sizeof(*vent->var));
255 		if (vent->var == NULL)
256 			errx(1, "malloc failed");
257 		memcpy(vent->var, v, sizeof(*vent->var));
258 		vent->next = NULL;
259 		if (vhead == NULL)
260 			vhead = vtail = vent;
261 		else {
262 			vtail->next = vent;
263 			vtail = vent;
264 		}
265 	}
266 	free(tempstr1);
267 	if (!vhead) {
268 		warnx("no valid keywords; valid keywords:");
269 		showkey();
270 		exit(1);
271 	}
272 }
273 
274 static VAR *
275 findvar(char *p)
276 {
277 	VAR *v, key;
278 	char *hp;
279 
280 	hp = strchr(p, '=');
281 	if (hp)
282 		*hp++ = '\0';
283 
284 	key.name = p;
285 	v = bsearch(&key, var, sizeof(var)/sizeof(VAR) - 1, sizeof(VAR), vcmp);
286 
287 	if (v && v->alias) {
288 		if (hp) {
289 			warnx("%s: illegal keyword specification", p);
290 			eval = 1;
291 		}
292 		parsefmt(v->alias);
293 		return ((VAR *)NULL);
294 	}
295 	if (!v) {
296 		warnx("%s: keyword not found", p);
297 		eval = 1;
298 	} else if (hp)
299 		v->header = strdup(hp);
300 	return (v);
301 }
302 
303 static int
304 vcmp(const void *a, const void *b)
305 {
306         return (strcmp(((const VAR *)a)->name, ((const VAR *)b)->name));
307 }
308