2 * Copyright (c) 1990, 1993, 1994
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
28 * ------+---------+---------+-------- + --------+---------+---------+---------*
29 * Copyright (c) 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>.
30 * All rights reserved.
32 * Significant modifications made to bring `ps' options somewhat closer
33 * to the standard for `ps' as described in SingleUnixSpec-v3.
34 * ------+---------+---------+-------- + --------+---------+---------+---------*
38 static const char copyright[] =
39 "@(#) Copyright (c) 1990, 1993, 1994\n\
40 The Regents of the University of California. All rights reserved.\n";
45 static char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94";
49 #include <sys/cdefs.h>
50 __FBSDID("$FreeBSD$");
52 #include <sys/param.h>
56 #include <sys/ioctl.h>
57 #include <sys/sysctl.h>
58 #include <sys/mount.h>
77 #define _PATH_PTS "/dev/pts/"
79 #define W_SEP " \t" /* "Whitespace" list separators */
80 #define T_SEP "," /* "Terminate-element" list separators */
84 #define OPT_LAZY_f "f"
86 #define DEF_UREAD 1 /* Always do the more-expensive read. */
87 #define OPT_LAZY_f /* I.e., the `-f' option is not added. */
91 * isdigit takes an `int', but expects values in the range of unsigned char.
92 * This wrapper ensures that values from a 'char' end up in the correct range.
94 #define isdigitch(Anychar) isdigit((u_char)(Anychar))
97 int eval; /* Exit value */
98 time_t now; /* Current time(3) value */
100 int sumrusage; /* -S */
101 int termwidth; /* Width of the screen (0 == infinity). */
102 int totwidth; /* Calculated-width of requested variables. */
103 int showthreads; /* will threads be shown? */
105 struct velisthead varlist = STAILQ_HEAD_INITIALIZER(varlist);
107 static int forceuread = DEF_UREAD; /* Do extra work to get u-area. */
110 static int needcomm; /* -o "command" */
111 static int needenv; /* -e */
112 static int needuser; /* -o "user" */
113 static int optfatal; /* Fatal error parsing some list-option. */
115 static enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT;
118 typedef int addelem_rtn(struct listinfo *_inf, const char *_elem);
124 addelem_rtn *addelem;
135 static int addelem_gid(struct listinfo *, const char *);
136 static int addelem_pid(struct listinfo *, const char *);
137 static int addelem_tty(struct listinfo *, const char *);
138 static int addelem_uid(struct listinfo *, const char *);
139 static void add_list(struct listinfo *, const char *);
140 static void descendant_sort(KINFO *, int);
141 static void dynsizevars(KINFO *);
142 static void *expand_list(struct listinfo *);
144 fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int),
145 KINFO *, char *, int);
146 static void free_list(struct listinfo *);
147 static void init_list(struct listinfo *, addelem_rtn, int, const char *);
148 static char *kludge_oldps_options(const char *, char *, const char *);
149 static int pscomp(const void *, const void *);
150 static void saveuser(KINFO *);
151 static void scanvars(void);
152 static void sizevars(void);
153 static void usage(void);
155 static char dfmt[] = "pid,tt,state,time,command";
156 static char jfmt[] = "user,pid,ppid,pgid,sid,jobc,state,tt,time,command";
157 static char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,"
159 static char o1[] = "pid";
160 static char o2[] = "tt,state,time,command";
161 static char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command";
162 static char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,"
164 static char Zfmt[] = "label";
166 #define PS_ARGS "AaCcde" OPT_LAZY_f "G:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ"
169 main(int argc, char *argv[])
171 struct listinfo gidlist, pgrplist, pidlist;
172 struct listinfo ruidlist, sesslist, ttylist, uidlist;
173 struct kinfo_proc *kp;
177 const char *nlistf, *memf;
179 int all, ch, elem, flag, _fmt, i, lineno;
180 int descendancy, nentries, nkept, nselectors;
181 int prtheader, wflag, what, xkeep, xkeep_implied;
182 char errbuf[_POSIX2_LINE_MAX];
184 (void) setlocale(LC_ALL, "");
185 time(&now); /* Used by routines in print.c. */
187 if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0')
188 termwidth = atoi(cols);
189 else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
190 ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
191 ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) ||
195 termwidth = ws.ws_col - 1;
198 * Hide a number of option-processing kludges in a separate routine,
199 * to support some historical BSD behaviors, such as `ps axu'.
202 argv[1] = kludge_oldps_options(PS_ARGS, argv[1], argv[2]);
204 all = descendancy = _fmt = nselectors = optfatal = 0;
205 prtheader = showthreads = wflag = xkeep_implied = 0;
206 xkeep = -1; /* Neither -x nor -X. */
207 init_list(&gidlist, addelem_gid, sizeof(gid_t), "group");
208 init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group");
209 init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id");
210 init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser");
211 init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id");
212 init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty");
213 init_list(&uidlist, addelem_uid, sizeof(uid_t), "user");
214 memf = _PATH_DEVNULL;
216 while ((ch = getopt(argc, argv, PS_ARGS)) != -1)
220 * Exactly the same as `-ax'. This has been
221 * added for compatibility with SUSv3, but for
222 * now it will not be described in the man page.
240 case 'e': /* XXX set ufmt */
245 if (getuid() == 0 || getgid() == 0)
250 add_list(&gidlist, optarg);
257 * XXX - This SUSv3 behavior is still under debate
258 * since it conflicts with the (undocumented)
259 * `-g' option. So we skip it for now.
261 add_list(&pgrplist, optarg);
266 /* The historical BSD-ish (from SunOS) behavior. */
270 showthreads = KERN_PROC_INC_THREAD;
273 prtheader = ws.ws_row > 5 ? ws.ws_row : 22;
301 o1[0] = o2[0] = '\0';
309 add_list(&pidlist, optarg);
311 * Note: `-p' does not *set* xkeep, but any values
312 * from pidlist are checked before xkeep is. That
313 * way they are always matched, even if the user
321 * XXX - This un-standard option is still under
322 * debate. This is what SUSv3 defines as
323 * the `-U' option, and while it would be
324 * nice to have, it could cause even more
325 * confusion to implement it as `-R'.
327 add_list(&ruidlist, optarg);
341 * XXX - This non-standard option is still under
342 * debate. This *is* supported on Solaris,
343 * Linux, and IRIX, but conflicts with `-s'
344 * on NetBSD and maybe some older BSD's.
346 add_list(&sesslist, optarg);
352 if ((optarg = ttyname(STDIN_FILENO)) == NULL)
353 errx(1, "stdin: not a terminal");
356 add_list(&ttylist, optarg);
361 /* This is what SUSv3 defines as the `-u' option. */
362 add_list(&uidlist, optarg);
380 termwidth = UNLIMITED;
381 else if (termwidth < 131)
387 * Note that `-X' and `-x' are not standard "selector"
388 * options. For most selector-options, we check *all*
389 * processes to see if any are matched by the given
390 * value(s). After we have a set of all the matched
391 * processes, then `-X' and `-x' govern whether we
392 * modify that *matched* set for processes which do
393 * not have a controlling terminal. `-X' causes
394 * those processes to be deleted from the matched
395 * set, while `-x' causes them to be kept.
414 * If there arguments after processing all the options, attempt
415 * to treat them as a list of process ids.
418 if (!isdigitch(**argv))
420 add_list(&pidlist, *argv);
424 fprintf(stderr, "%s: illegal argument: %s\n",
425 getprogname(), *argv);
429 exit(1); /* Error messages already printed. */
430 if (xkeep < 0) /* Neither -X nor -x was specified. */
431 xkeep = xkeep_implied;
433 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
435 errx(1, "%s", errbuf);
440 if (nselectors == 0) {
441 uidlist.l.ptr = malloc(sizeof(uid_t));
442 if (uidlist.l.ptr == NULL)
443 errx(1, "malloc failed");
445 uidlist.count = uidlist.maxcount = 1;
446 *uidlist.l.uids = getuid();
450 * scan requested variables, noting what structures are needed,
451 * and adjusting header widths as appropriate.
456 * Get process list. If the user requested just one selector-
457 * option, then kvm_getprocs can be asked to return just those
458 * processes. Otherwise, have it return all processes, and
459 * then this routine will search that full list and select the
460 * processes which match any of the user's selector-options.
462 what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC;
464 if (nselectors == 1) {
465 if (gidlist.count == 1) {
466 what = KERN_PROC_RGID | showthreads;
467 flag = *gidlist.l.gids;
469 } else if (pgrplist.count == 1) {
470 what = KERN_PROC_PGRP | showthreads;
471 flag = *pgrplist.l.pids;
473 } else if (pidlist.count == 1) {
474 what = KERN_PROC_PID | showthreads;
475 flag = *pidlist.l.pids;
477 } else if (ruidlist.count == 1) {
478 what = KERN_PROC_RUID | showthreads;
479 flag = *ruidlist.l.uids;
481 } else if (sesslist.count == 1) {
482 what = KERN_PROC_SESSION | showthreads;
483 flag = *sesslist.l.pids;
485 } else if (ttylist.count == 1) {
486 what = KERN_PROC_TTY | showthreads;
487 flag = *ttylist.l.ttys;
489 } else if (uidlist.count == 1) {
490 what = KERN_PROC_UID | showthreads;
491 flag = *uidlist.l.uids;
494 /* No need for this routine to select processes. */
503 kp = kvm_getprocs(kd, what, flag, &nentries);
504 if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0))
505 errx(1, "%s", kvm_geterr(kd));
508 if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL)
509 errx(1, "malloc failed");
510 for (i = nentries; --i >= 0; ++kp) {
512 * If the user specified multiple selection-criteria,
513 * then keep any process matched by the inclusive OR
514 * of all the selection-criteria given.
516 if (pidlist.count > 0) {
517 for (elem = 0; elem < pidlist.count; elem++)
518 if (kp->ki_pid == pidlist.l.pids[elem])
522 * Note that we had to process pidlist before
523 * filtering out processes which do not have
524 * a controlling terminal.
527 if ((kp->ki_tdev == NODEV ||
528 (kp->ki_flag & P_CONTROLT) == 0))
533 if (gidlist.count > 0) {
534 for (elem = 0; elem < gidlist.count; elem++)
535 if (kp->ki_rgid == gidlist.l.gids[elem])
538 if (pgrplist.count > 0) {
539 for (elem = 0; elem < pgrplist.count; elem++)
541 pgrplist.l.pids[elem])
544 if (ruidlist.count > 0) {
545 for (elem = 0; elem < ruidlist.count; elem++)
547 ruidlist.l.uids[elem])
550 if (sesslist.count > 0) {
551 for (elem = 0; elem < sesslist.count; elem++)
552 if (kp->ki_sid == sesslist.l.pids[elem])
555 if (ttylist.count > 0) {
556 for (elem = 0; elem < ttylist.count; elem++)
557 if (kp->ki_tdev == ttylist.l.ttys[elem])
560 if (uidlist.count > 0) {
561 for (elem = 0; elem < uidlist.count; elem++)
562 if (kp->ki_uid == uidlist.l.uids[elem])
566 * This process did not match any of the user's
567 * selector-options, so skip the process.
572 next_KINFO = &kinfo[nkept];
573 next_KINFO->ki_p = kp;
574 next_KINFO->ki_d.level = 0;
575 next_KINFO->ki_d.prefix = NULL;
576 next_KINFO->ki_pcpu = getpcpu(next_KINFO);
577 if (sortby == SORTMEM)
578 next_KINFO->ki_memsize = kp->ki_tsize +
579 kp->ki_dsize + kp->ki_ssize;
581 saveuser(next_KINFO);
582 dynsizevars(next_KINFO);
599 qsort(kinfo, nkept, sizeof(KINFO), pscomp);
602 * We want things in descendant order
605 descendant_sort(kinfo, nkept);
608 * For each process, call each variable output function.
610 for (i = lineno = 0; i < nkept; i++) {
611 STAILQ_FOREACH(vent, &varlist, next_ve) {
612 (vent->var->oproc)(&kinfo[i], vent);
613 if (STAILQ_NEXT(vent, next_ve) != NULL)
617 if (prtheader && lineno++ == prtheader - 4) {
625 free_list(&pgrplist);
626 free_list(&ruidlist);
627 free_list(&sesslist);
630 for (i = 0; i < nkept; i++)
631 free(kinfo[i].ki_d.prefix);
638 addelem_gid(struct listinfo *inf, const char *elem)
641 const char *nameorID;
645 if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) {
647 warnx("Invalid (zero-length) %s name", inf->lname);
649 warnx("%s name too long: %s", inf->lname, elem);
651 return (0); /* Do not add this value. */
655 * SUSv3 states that `ps -G grouplist' should match "real-group
656 * ID numbers", and does not mention group-names. I do want to
657 * also support group-names, so this tries for a group-id first,
658 * and only tries for a name if that doesn't work. This is the
659 * opposite order of what is done in addelem_uid(), but in
660 * practice the order would only matter for group-names which
666 bigtemp = strtoul(elem, &endp, 10);
667 if (errno == 0 && *endp == '\0' && bigtemp <= GID_MAX) {
668 nameorID = "name or ID matches";
669 grp = getgrgid((gid_t)bigtemp);
672 grp = getgrnam(elem);
674 warnx("No %s %s '%s'", inf->lname, nameorID, elem);
678 if (inf->count >= inf->maxcount)
680 inf->l.gids[(inf->count)++] = grp->gr_gid;
684 #define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h. */
686 addelem_pid(struct listinfo *inf, const char *elem)
692 warnx("Invalid (zero-length) process id");
694 return (0); /* Do not add this value. */
698 tempid = strtol(elem, &endp, 10);
699 if (*endp != '\0' || tempid < 0 || elem == endp) {
700 warnx("Invalid %s: %s", inf->lname, elem);
702 } else if (errno != 0 || tempid > BSD_PID_MAX) {
703 warnx("%s too large: %s", inf->lname, elem);
706 if (errno == ERANGE) {
710 if (inf->count >= inf->maxcount)
712 inf->l.pids[(inf->count)++] = tempid;
718 * The user can specify a device via one of three formats:
719 * 1) fully qualified, e.g.: /dev/ttyp0 /dev/console /dev/pts/0
720 * 2) missing "/dev", e.g.: ttyp0 console pts/0
721 * 3) two-letters, e.g.: p0 co 0
722 * (matching letters that would be seen in the "TT" column)
725 addelem_tty(struct listinfo *inf, const char *elem)
729 char pathbuf[PATH_MAX], pathbuf2[PATH_MAX], pathbuf3[PATH_MAX];
739 if (strcmp(elem, "co") == 0) {
740 ttypath = _PATH_CONSOLE;
745 strlcpy(pathbuf, _PATH_DEV, sizeof(pathbuf));
746 strlcat(pathbuf, elem, sizeof(pathbuf));
748 if (strncmp(pathbuf, _PATH_TTY, strlen(_PATH_TTY)) == 0)
750 if (strncmp(pathbuf, _PATH_PTS, strlen(_PATH_PTS)) == 0)
752 if (strcmp(pathbuf, _PATH_CONSOLE) == 0)
754 /* Check to see if /dev/tty${elem} exists */
755 strlcpy(pathbuf2, _PATH_TTY, sizeof(pathbuf2));
756 strlcat(pathbuf2, elem, sizeof(pathbuf2));
757 if (stat(pathbuf2, &sb) == 0 && S_ISCHR(sb.st_mode)) {
758 /* No need to repeat stat() && S_ISCHR() checks */
762 /* Check to see if /dev/pts/${elem} exists */
763 strlcpy(pathbuf3, _PATH_PTS, sizeof(pathbuf3));
764 strlcat(pathbuf3, elem, sizeof(pathbuf3));
765 if (stat(pathbuf3, &sb) == 0 && S_ISCHR(sb.st_mode)) {
766 /* No need to repeat stat() && S_ISCHR() checks */
773 if (stat(ttypath, &sb) == -1) {
774 if (pathbuf3[0] != '\0')
775 warn("%s, %s, and %s", pathbuf3, pathbuf2,
782 if (!S_ISCHR(sb.st_mode)) {
783 if (pathbuf3[0] != '\0')
784 warnx("%s, %s, and %s: Not a terminal",
785 pathbuf3, pathbuf2, ttypath);
787 warnx("%s: Not a terminal", ttypath);
792 if (inf->count >= inf->maxcount)
794 inf->l.ttys[(inf->count)++] = sb.st_rdev;
799 addelem_uid(struct listinfo *inf, const char *elem)
805 if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) {
807 warnx("Invalid (zero-length) %s name", inf->lname);
809 warnx("%s name too long: %s", inf->lname, elem);
811 return (0); /* Do not add this value. */
814 pwd = getpwnam(elem);
817 bigtemp = strtoul(elem, &endp, 10);
818 if (errno != 0 || *endp != '\0' || bigtemp > UID_MAX)
819 warnx("No %s named '%s'", inf->lname, elem);
821 /* The string is all digits, so it might be a userID. */
822 pwd = getpwuid((uid_t)bigtemp);
824 warnx("No %s name or ID matches '%s'",
830 * These used to be treated as minor warnings (and the
831 * option was simply ignored), but now they are fatal
832 * errors (and the command will be aborted).
837 if (inf->count >= inf->maxcount)
839 inf->l.uids[(inf->count)++] = pwd->pw_uid;
844 add_list(struct listinfo *inf, const char *argp)
849 char elemcopy[PATH_MAX];
852 inf->addelem(inf, elemcopy);
853 while (*argp != '\0') {
854 while (*argp != '\0' && strchr(W_SEP, *argp) != NULL)
859 if (strchr(T_SEP, *argp) == NULL) {
860 endp = elemcopy + sizeof(elemcopy) - 1;
861 while (*argp != '\0' && cp <= endp &&
862 strchr(W_SEP T_SEP, *argp) == NULL)
870 * Add this single element to the given list.
872 inf->addelem(inf, elemcopy);
875 * The string is too long to copy. Find the end
876 * of the string to print out the warning message.
878 while (*argp != '\0' && strchr(W_SEP T_SEP,
881 warnx("Value too long: %.*s", (int)(argp - savep),
886 * Skip over any number of trailing whitespace characters,
887 * but only one (at most) trailing element-terminating
890 while (*argp != '\0' && strchr(W_SEP, *argp) != NULL)
892 if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) {
894 /* Catch case where string ended with a comma. */
896 inf->addelem(inf, argp);
902 descendant_sort(KINFO *ki, int items)
904 int dst, lvl, maxlvl, n, ndst, nsrc, siblings, src;
909 * First, sort the entries by descendancy, tracking the descendancy
910 * depth in the ki_d.level field.
914 while (src < items) {
915 if (ki[src].ki_d.level) {
919 for (nsrc = 1; src + nsrc < items; nsrc++)
920 if (!ki[src + nsrc].ki_d.level)
923 for (dst = 0; dst < items; dst++) {
924 if (ki[dst].ki_p->ki_pid == ki[src].ki_p->ki_pid)
926 if (ki[dst].ki_p->ki_pid == ki[src].ki_p->ki_ppid)
935 for (ndst = 1; dst + ndst < items; ndst++)
936 if (ki[dst + ndst].ki_d.level <= ki[dst].ki_d.level)
939 for (n = src; n < src + nsrc; n++) {
940 ki[n].ki_d.level += ki[dst].ki_d.level + 1;
941 if (maxlvl < ki[n].ki_d.level)
942 maxlvl = ki[n].ki_d.level;
948 memmove(ki + src, ki + src + 1,
949 (dst - src + ndst - 1) * sizeof *ki);
950 ki[dst + ndst - 1] = kn;
954 } else if (src != dst + ndst) {
956 memmove(ki + dst + ndst + 1, ki + dst + ndst,
957 (src - dst - ndst) * sizeof *ki);
971 * Now populate ki_d.prefix (instead of ki_d.level) with the command
972 * prefix used to show descendancies.
974 path = malloc((maxlvl + 7) / 8);
975 memset(path, '\0', (maxlvl + 7) / 8);
976 for (src = 0; src < items; src++) {
977 if ((lvl = ki[src].ki_d.level) == 0) {
978 ki[src].ki_d.prefix = NULL;
981 if ((ki[src].ki_d.prefix = malloc(lvl * 2 + 1)) == NULL)
982 errx(1, "malloc failed");
983 for (n = 0; n < lvl - 2; n++) {
984 ki[src].ki_d.prefix[n * 2] =
985 path[n / 8] & 1 << (n % 8) ? '|' : ' ';
986 ki[src].ki_d.prefix[n * 2 + 1] = ' ';
989 /* Have I any more siblings? */
990 for (siblings = 0, dst = src + 1; dst < items; dst++) {
991 if (ki[dst].ki_d.level > lvl)
993 if (ki[dst].ki_d.level == lvl)
998 path[n / 8] |= 1 << (n % 8);
1000 path[n / 8] &= ~(1 << (n % 8));
1001 ki[src].ki_d.prefix[n * 2] = siblings ? '|' : '`';
1002 ki[src].ki_d.prefix[n * 2 + 1] = '-';
1005 strcpy(ki[src].ki_d.prefix + n * 2, "- ");
1011 expand_list(struct listinfo *inf)
1016 newmax = (inf->maxcount + 1) << 1;
1017 newlist = realloc(inf->l.ptr, newmax * inf->elemsize);
1018 if (newlist == NULL) {
1020 errx(1, "realloc to %d %ss failed", newmax, inf->lname);
1022 inf->maxcount = newmax;
1023 inf->l.ptr = newlist;
1029 free_list(struct listinfo *inf)
1032 inf->count = inf->elemsize = inf->maxcount = 0;
1033 if (inf->l.ptr != NULL)
1035 inf->addelem = NULL;
1041 init_list(struct listinfo *inf, addelem_rtn artn, int elemsize,
1045 inf->count = inf->maxcount = 0;
1046 inf->elemsize = elemsize;
1047 inf->addelem = artn;
1053 find_varentry(VAR *v)
1055 struct varent *vent;
1057 STAILQ_FOREACH(vent, &varlist, next_ve) {
1058 if (strcmp(vent->var->name, v->name) == 0)
1067 struct varent *vent;
1070 STAILQ_FOREACH(vent, &varlist, next_ve) {
1072 if (v->sproc != NULL) {
1073 v->dwidth = v->width;
1084 dynsizevars(KINFO *ki)
1086 struct varent *vent;
1090 STAILQ_FOREACH(vent, &varlist, next_ve) {
1092 if (v->sproc == NULL)
1097 if (v->width > v->dwidth)
1098 v->width = v->dwidth;
1105 struct varent *vent;
1109 STAILQ_FOREACH(vent, &varlist, next_ve) {
1111 i = strlen(vent->header);
1114 totwidth += v->width + 1; /* +1 for space */
1120 fmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki,
1121 char *comm, int maxlen)
1125 s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen);
1129 #define UREADOK(ki) (forceuread || (ki->ki_p->ki_flag & P_INMEM))
1135 if (ki->ki_p->ki_flag & P_INMEM) {
1137 * The u-area might be swapped out, and we can't get
1138 * at it because we have a crashdump and no swap.
1139 * If it's here fill in these fields, otherwise, just
1146 * save arguments if needed
1149 if (ki->ki_p->ki_stat == SZOMB)
1150 ki->ki_args = strdup("<defunct>");
1151 else if (UREADOK(ki) || (ki->ki_p->ki_args != NULL))
1152 ki->ki_args = strdup(fmt(kvm_getargv, ki,
1153 ki->ki_p->ki_comm, MAXCOMLEN));
1155 asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm);
1156 if (ki->ki_args == NULL)
1157 errx(1, "malloc failed");
1163 ki->ki_env = strdup(fmt(kvm_getenvv, ki,
1166 ki->ki_env = strdup("()");
1167 if (ki->ki_env == NULL)
1168 errx(1, "malloc failed");
1174 /* A macro used to improve the readability of pscomp(). */
1175 #define DIFF_RETURN(a, b, field) do { \
1176 if ((a)->field != (b)->field) \
1177 return (((a)->field < (b)->field) ? -1 : 1); \
1181 pscomp(const void *a, const void *b)
1183 const KINFO *ka, *kb;
1187 /* SORTCPU and SORTMEM are sorted in descending order. */
1188 if (sortby == SORTCPU)
1189 DIFF_RETURN(kb, ka, ki_pcpu);
1190 if (sortby == SORTMEM)
1191 DIFF_RETURN(kb, ka, ki_memsize);
1193 * TTY's are sorted in ascending order, except that all NODEV
1194 * processes come before all processes with a device.
1196 if (ka->ki_p->ki_tdev != kb->ki_p->ki_tdev) {
1197 if (ka->ki_p->ki_tdev == NODEV)
1199 if (kb->ki_p->ki_tdev == NODEV)
1201 DIFF_RETURN(ka, kb, ki_p->ki_tdev);
1204 /* PID's and TID's (threads) are sorted in ascending order. */
1205 DIFF_RETURN(ka, kb, ki_p->ki_pid);
1206 DIFF_RETURN(ka, kb, ki_p->ki_tid);
1212 * ICK (all for getopt), would rather hide the ugliness
1213 * here than taint the main code.
1218 * The old convention that 't' with no trailing tty arg means the users
1219 * tty, is only supported if argv[1] doesn't begin with a '-'. This same
1220 * feature is available with the option 'T', which takes no argument.
1223 kludge_oldps_options(const char *optlist, char *origval, const char *nextarg)
1226 char *argp, *cp, *newopts, *ns, *optp, *pidp;
1229 * See if the original value includes any option which takes an
1230 * argument (and will thus use up the remainder of the string).
1233 if (optlist != NULL) {
1234 for (cp = origval; *cp != '\0'; cp++) {
1235 optp = strchr(optlist, *cp);
1236 if ((optp != NULL) && *(optp + 1) == ':') {
1242 if (argp != NULL && *origval == '-')
1246 * if last letter is a 't' flag with no argument (in the context
1247 * of the oldps options -- option string NOT starting with a '-' --
1248 * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)).
1250 * However, if a flag accepting a string argument is found earlier
1251 * in the option string (including a possible `t' flag), then the
1252 * remainder of the string must be the argument to that flag; so
1253 * do not modify that argument. Note that a trailing `t' would
1254 * cause argp to be set, if argp was not already set by some
1257 len = strlen(origval);
1258 cp = origval + len - 1;
1260 if (*cp == 't' && *origval != '-' && cp == argp) {
1261 if (nextarg == NULL || *nextarg == '-' || isdigitch(*nextarg))
1263 } else if (argp == NULL) {
1265 * The original value did not include any option which takes
1266 * an argument (and that would include `p' and `t'), so check
1267 * the value for trailing number, or comma-separated list of
1268 * numbers, which we will treat as a pid request.
1270 if (isdigitch(*cp)) {
1271 while (cp >= origval && (*cp == ',' || isdigitch(*cp)))
1278 * If nothing needs to be added to the string, then return
1279 * the "original" (although possibly modified) value.
1281 if (*origval == '-' && pidp == NULL)
1285 * Create a copy of the string to add '-' and/or 'p' to the
1288 if ((newopts = ns = malloc(len + 3)) == NULL)
1289 errx(1, "malloc failed");
1291 if (*origval != '-')
1292 *ns++ = '-'; /* add option flag */
1295 strcpy(ns, origval);
1298 * Copy everything before the pid string, add the `p',
1299 * and then copy the pid string.
1301 len = pidp - origval;
1302 memcpy(ns, origval, len);
1314 #define SINGLE_OPTS "[-aCcde" OPT_LAZY_f "HhjlmrSTuvwXxZ]"
1316 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
1317 "usage: ps " SINGLE_OPTS " [-O fmt | -o fmt] [-G gid[,gid...]]",
1318 " [-M core] [-N system]",
1319 " [-p pid[,pid...]] [-t tty[,tty...]] [-U user[,user...]]",