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 check_procfs(void);
136 static int addelem_gid(struct listinfo *, const char *);
137 static int addelem_pid(struct listinfo *, const char *);
138 static int addelem_tty(struct listinfo *, const char *);
139 static int addelem_uid(struct listinfo *, const char *);
140 static void add_list(struct listinfo *, const char *);
141 static void descendant_sort(KINFO *, int);
142 static void dynsizevars(KINFO *);
143 static void *expand_list(struct listinfo *);
145 fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int),
146 KINFO *, char *, int);
147 static void free_list(struct listinfo *);
148 static void init_list(struct listinfo *, addelem_rtn, int, const char *);
149 static char *kludge_oldps_options(const char *, char *, const char *);
150 static int pscomp(const void *, const void *);
151 static void saveuser(KINFO *);
152 static void scanvars(void);
153 static void sizevars(void);
154 static void usage(void);
156 static char dfmt[] = "pid,tt,state,time,command";
157 static char jfmt[] = "user,pid,ppid,pgid,sid,jobc,state,tt,time,command";
158 static char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,"
160 static char o1[] = "pid";
161 static char o2[] = "tt,state,time,command";
162 static char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command";
163 static char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,"
165 static char Zfmt[] = "label";
167 #define PS_ARGS "AaCcde" OPT_LAZY_f "G:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ"
170 main(int argc, char *argv[])
172 struct listinfo gidlist, pgrplist, pidlist;
173 struct listinfo ruidlist, sesslist, ttylist, uidlist;
174 struct kinfo_proc *kp;
178 const char *nlistf, *memf;
180 int all, ch, elem, flag, _fmt, i, lineno;
181 int descendancy, nentries, nkept, nselectors;
182 int prtheader, wflag, what, xkeep, xkeep_implied;
183 char errbuf[_POSIX2_LINE_MAX];
185 (void) setlocale(LC_ALL, "");
186 time(&now); /* Used by routines in print.c. */
188 if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0')
189 termwidth = atoi(cols);
190 else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
191 ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
192 ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) ||
196 termwidth = ws.ws_col - 1;
199 * Hide a number of option-processing kludges in a separate routine,
200 * to support some historical BSD behaviors, such as `ps axu'.
203 argv[1] = kludge_oldps_options(PS_ARGS, argv[1], argv[2]);
205 all = descendancy = _fmt = nselectors = optfatal = 0;
206 prtheader = showthreads = wflag = xkeep_implied = 0;
207 xkeep = -1; /* Neither -x nor -X. */
208 init_list(&gidlist, addelem_gid, sizeof(gid_t), "group");
209 init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group");
210 init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id");
211 init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser");
212 init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id");
213 init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty");
214 init_list(&uidlist, addelem_uid, sizeof(uid_t), "user");
215 memf = nlistf = _PATH_DEVNULL;
216 while ((ch = getopt(argc, argv, PS_ARGS)) != -1)
220 * Exactly the same as `-ax'. This has been
221 * added for compatability 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 the user specified ps -e then they want a copy of the process
415 * environment kvm_getenvv(3) attempts to open /proc/<pid>/mem.
416 * Check to make sure that procfs is mounted on /proc, otherwise
417 * print a warning informing the user that output will be incomplete.
419 if (needenv == 1 && check_procfs() == 0)
420 warnx("Process environment requires procfs(5)");
422 * If there arguments after processing all the options, attempt
423 * to treat them as a list of process ids.
426 if (!isdigitch(**argv))
428 add_list(&pidlist, *argv);
432 fprintf(stderr, "%s: illegal argument: %s\n",
433 getprogname(), *argv);
437 exit(1); /* Error messages already printed. */
438 if (xkeep < 0) /* Neither -X nor -x was specified. */
439 xkeep = xkeep_implied;
441 kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
443 errx(1, "%s", errbuf);
448 if (nselectors == 0) {
449 uidlist.l.ptr = malloc(sizeof(uid_t));
450 if (uidlist.l.ptr == NULL)
451 errx(1, "malloc failed");
453 uidlist.count = uidlist.maxcount = 1;
454 *uidlist.l.uids = getuid();
458 * scan requested variables, noting what structures are needed,
459 * and adjusting header widths as appropriate.
464 * Get process list. If the user requested just one selector-
465 * option, then kvm_getprocs can be asked to return just those
466 * processes. Otherwise, have it return all processes, and
467 * then this routine will search that full list and select the
468 * processes which match any of the user's selector-options.
470 what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC;
472 if (nselectors == 1) {
473 if (gidlist.count == 1) {
474 what = KERN_PROC_RGID | showthreads;
475 flag = *gidlist.l.gids;
477 } else if (pgrplist.count == 1) {
478 what = KERN_PROC_PGRP | showthreads;
479 flag = *pgrplist.l.pids;
481 } else if (pidlist.count == 1) {
482 what = KERN_PROC_PID | showthreads;
483 flag = *pidlist.l.pids;
485 } else if (ruidlist.count == 1) {
486 what = KERN_PROC_RUID | showthreads;
487 flag = *ruidlist.l.uids;
489 } else if (sesslist.count == 1) {
490 what = KERN_PROC_SESSION | showthreads;
491 flag = *sesslist.l.pids;
493 } else if (ttylist.count == 1) {
494 what = KERN_PROC_TTY | showthreads;
495 flag = *ttylist.l.ttys;
497 } else if (uidlist.count == 1) {
498 what = KERN_PROC_UID | showthreads;
499 flag = *uidlist.l.uids;
502 /* No need for this routine to select processes. */
511 kp = kvm_getprocs(kd, what, flag, &nentries);
512 if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0))
513 errx(1, "%s", kvm_geterr(kd));
516 if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL)
517 errx(1, "malloc failed");
518 for (i = nentries; --i >= 0; ++kp) {
520 * If the user specified multiple selection-criteria,
521 * then keep any process matched by the inclusive OR
522 * of all the selection-criteria given.
524 if (pidlist.count > 0) {
525 for (elem = 0; elem < pidlist.count; elem++)
526 if (kp->ki_pid == pidlist.l.pids[elem])
530 * Note that we had to process pidlist before
531 * filtering out processes which do not have
532 * a controlling terminal.
535 if ((kp->ki_tdev == NODEV ||
536 (kp->ki_flag & P_CONTROLT) == 0))
541 if (gidlist.count > 0) {
542 for (elem = 0; elem < gidlist.count; elem++)
543 if (kp->ki_rgid == gidlist.l.gids[elem])
546 if (pgrplist.count > 0) {
547 for (elem = 0; elem < pgrplist.count; elem++)
549 pgrplist.l.pids[elem])
552 if (ruidlist.count > 0) {
553 for (elem = 0; elem < ruidlist.count; elem++)
555 ruidlist.l.uids[elem])
558 if (sesslist.count > 0) {
559 for (elem = 0; elem < sesslist.count; elem++)
560 if (kp->ki_sid == sesslist.l.pids[elem])
563 if (ttylist.count > 0) {
564 for (elem = 0; elem < ttylist.count; elem++)
565 if (kp->ki_tdev == ttylist.l.ttys[elem])
568 if (uidlist.count > 0) {
569 for (elem = 0; elem < uidlist.count; elem++)
570 if (kp->ki_uid == uidlist.l.uids[elem])
574 * This process did not match any of the user's
575 * selector-options, so skip the process.
580 next_KINFO = &kinfo[nkept];
581 next_KINFO->ki_p = kp;
582 next_KINFO->ki_d.level = 0;
583 next_KINFO->ki_d.prefix = NULL;
584 next_KINFO->ki_pcpu = getpcpu(next_KINFO);
585 if (sortby == SORTMEM)
586 next_KINFO->ki_memsize = kp->ki_tsize +
587 kp->ki_dsize + kp->ki_ssize;
589 saveuser(next_KINFO);
590 dynsizevars(next_KINFO);
607 qsort(kinfo, nkept, sizeof(KINFO), pscomp);
610 * We want things in descendant order
613 descendant_sort(kinfo, nkept);
616 * For each process, call each variable output function.
618 for (i = lineno = 0; i < nkept; i++) {
619 STAILQ_FOREACH(vent, &varlist, next_ve) {
620 (vent->var->oproc)(&kinfo[i], vent);
621 if (STAILQ_NEXT(vent, next_ve) != NULL)
625 if (prtheader && lineno++ == prtheader - 4) {
633 free_list(&pgrplist);
634 free_list(&ruidlist);
635 free_list(&sesslist);
638 for (i = 0; i < nkept; i++)
639 free(kinfo[i].ki_d.prefix);
646 addelem_gid(struct listinfo *inf, const char *elem)
649 const char *nameorID;
653 if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) {
655 warnx("Invalid (zero-length) %s name", inf->lname);
657 warnx("%s name too long: %s", inf->lname, elem);
659 return (0); /* Do not add this value. */
663 * SUSv3 states that `ps -G grouplist' should match "real-group
664 * ID numbers", and does not mention group-names. I do want to
665 * also support group-names, so this tries for a group-id first,
666 * and only tries for a name if that doesn't work. This is the
667 * opposite order of what is done in addelem_uid(), but in
668 * practice the order would only matter for group-names which
674 bigtemp = strtoul(elem, &endp, 10);
675 if (errno == 0 && *endp == '\0' && bigtemp <= GID_MAX) {
676 nameorID = "name or ID matches";
677 grp = getgrgid((gid_t)bigtemp);
680 grp = getgrnam(elem);
682 warnx("No %s %s '%s'", inf->lname, nameorID, elem);
686 if (inf->count >= inf->maxcount)
688 inf->l.gids[(inf->count)++] = grp->gr_gid;
692 #define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h. */
694 addelem_pid(struct listinfo *inf, const char *elem)
700 warnx("Invalid (zero-length) process id");
702 return (0); /* Do not add this value. */
706 tempid = strtol(elem, &endp, 10);
707 if (*endp != '\0' || tempid < 0 || elem == endp) {
708 warnx("Invalid %s: %s", inf->lname, elem);
710 } else if (errno != 0 || tempid > BSD_PID_MAX) {
711 warnx("%s too large: %s", inf->lname, elem);
714 if (errno == ERANGE) {
718 if (inf->count >= inf->maxcount)
720 inf->l.pids[(inf->count)++] = tempid;
726 * The user can specify a device via one of three formats:
727 * 1) fully qualified, e.g.: /dev/ttyp0 /dev/console /dev/pts/0
728 * 2) missing "/dev", e.g.: ttyp0 console pts/0
729 * 3) two-letters, e.g.: p0 co 0
730 * (matching letters that would be seen in the "TT" column)
733 addelem_tty(struct listinfo *inf, const char *elem)
737 char pathbuf[PATH_MAX], pathbuf2[PATH_MAX], pathbuf3[PATH_MAX];
747 if (strcmp(elem, "co") == 0) {
748 ttypath = _PATH_CONSOLE;
753 strlcpy(pathbuf, _PATH_DEV, sizeof(pathbuf));
754 strlcat(pathbuf, elem, sizeof(pathbuf));
756 if (strncmp(pathbuf, _PATH_TTY, strlen(_PATH_TTY)) == 0)
758 if (strncmp(pathbuf, _PATH_PTS, strlen(_PATH_PTS)) == 0)
760 if (strcmp(pathbuf, _PATH_CONSOLE) == 0)
762 /* Check to see if /dev/tty${elem} exists */
763 strlcpy(pathbuf2, _PATH_TTY, sizeof(pathbuf2));
764 strlcat(pathbuf2, elem, sizeof(pathbuf2));
765 if (stat(pathbuf2, &sb) == 0 && S_ISCHR(sb.st_mode)) {
766 /* No need to repeat stat() && S_ISCHR() checks */
770 /* Check to see if /dev/pts/${elem} exists */
771 strlcpy(pathbuf3, _PATH_PTS, sizeof(pathbuf3));
772 strlcat(pathbuf3, elem, sizeof(pathbuf3));
773 if (stat(pathbuf3, &sb) == 0 && S_ISCHR(sb.st_mode)) {
774 /* No need to repeat stat() && S_ISCHR() checks */
781 if (stat(ttypath, &sb) == -1) {
782 if (pathbuf3[0] != '\0')
783 warn("%s, %s, and %s", pathbuf3, pathbuf2,
790 if (!S_ISCHR(sb.st_mode)) {
791 if (pathbuf3[0] != '\0')
792 warnx("%s, %s, and %s: Not a terminal",
793 pathbuf3, pathbuf2, ttypath);
795 warnx("%s: Not a terminal", ttypath);
800 if (inf->count >= inf->maxcount)
802 inf->l.ttys[(inf->count)++] = sb.st_rdev;
807 addelem_uid(struct listinfo *inf, const char *elem)
813 if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) {
815 warnx("Invalid (zero-length) %s name", inf->lname);
817 warnx("%s name too long: %s", inf->lname, elem);
819 return (0); /* Do not add this value. */
822 pwd = getpwnam(elem);
825 bigtemp = strtoul(elem, &endp, 10);
826 if (errno != 0 || *endp != '\0' || bigtemp > UID_MAX)
827 warnx("No %s named '%s'", inf->lname, elem);
829 /* The string is all digits, so it might be a userID. */
830 pwd = getpwuid((uid_t)bigtemp);
832 warnx("No %s name or ID matches '%s'",
838 * These used to be treated as minor warnings (and the
839 * option was simply ignored), but now they are fatal
840 * errors (and the command will be aborted).
845 if (inf->count >= inf->maxcount)
847 inf->l.uids[(inf->count)++] = pwd->pw_uid;
852 add_list(struct listinfo *inf, const char *argp)
857 char elemcopy[PATH_MAX];
860 inf->addelem(inf, elemcopy);
861 while (*argp != '\0') {
862 while (*argp != '\0' && strchr(W_SEP, *argp) != NULL)
867 if (strchr(T_SEP, *argp) == NULL) {
868 endp = elemcopy + sizeof(elemcopy) - 1;
869 while (*argp != '\0' && cp <= endp &&
870 strchr(W_SEP T_SEP, *argp) == NULL)
878 * Add this single element to the given list.
880 inf->addelem(inf, elemcopy);
883 * The string is too long to copy. Find the end
884 * of the string to print out the warning message.
886 while (*argp != '\0' && strchr(W_SEP T_SEP,
889 warnx("Value too long: %.*s", (int)(argp - savep),
894 * Skip over any number of trailing whitespace characters,
895 * but only one (at most) trailing element-terminating
898 while (*argp != '\0' && strchr(W_SEP, *argp) != NULL)
900 if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) {
902 /* Catch case where string ended with a comma. */
904 inf->addelem(inf, argp);
910 descendant_sort(KINFO *ki, int items)
912 int dst, lvl, maxlvl, n, ndst, nsrc, siblings, src;
917 * First, sort the entries by descendancy, tracking the descendancy
918 * depth in the ki_d.level field.
922 while (src < items) {
923 if (ki[src].ki_d.level) {
927 for (nsrc = 1; src + nsrc < items; nsrc++)
928 if (!ki[src + nsrc].ki_d.level)
931 for (dst = 0; dst < items; dst++) {
932 if (ki[dst].ki_p->ki_pid == ki[src].ki_p->ki_pid)
934 if (ki[dst].ki_p->ki_pid == ki[src].ki_p->ki_ppid)
943 for (ndst = 1; dst + ndst < items; ndst++)
944 if (ki[dst + ndst].ki_d.level <= ki[dst].ki_d.level)
947 for (n = src; n < src + nsrc; n++) {
948 ki[n].ki_d.level += ki[dst].ki_d.level + 1;
949 if (maxlvl < ki[n].ki_d.level)
950 maxlvl = ki[n].ki_d.level;
956 memmove(ki + src, ki + src + 1,
957 (dst - src + ndst - 1) * sizeof *ki);
958 ki[dst + ndst - 1] = kn;
962 } else if (src != dst + ndst) {
964 memmove(ki + dst + ndst + 1, ki + dst + ndst,
965 (src - dst - ndst) * sizeof *ki);
979 * Now populate ki_d.prefix (instead of ki_d.level) with the command
980 * prefix used to show descendancies.
982 path = malloc((maxlvl + 7) / 8);
983 memset(path, '\0', (maxlvl + 7) / 8);
984 for (src = 0; src < items; src++) {
985 if ((lvl = ki[src].ki_d.level) == 0) {
986 ki[src].ki_d.prefix = NULL;
989 if ((ki[src].ki_d.prefix = malloc(lvl * 2 + 1)) == NULL)
990 errx(1, "malloc failed");
991 for (n = 0; n < lvl - 2; n++) {
992 ki[src].ki_d.prefix[n * 2] =
993 path[n / 8] & 1 << (n % 8) ? '|' : ' ';
994 ki[src].ki_d.prefix[n * 2 + 1] = ' ';
997 /* Have I any more siblings? */
998 for (siblings = 0, dst = src + 1; dst < items; dst++) {
999 if (ki[dst].ki_d.level > lvl)
1001 if (ki[dst].ki_d.level == lvl)
1006 path[n / 8] |= 1 << (n % 8);
1008 path[n / 8] &= ~(1 << (n % 8));
1009 ki[src].ki_d.prefix[n * 2] = siblings ? '|' : '`';
1010 ki[src].ki_d.prefix[n * 2 + 1] = '-';
1013 strcpy(ki[src].ki_d.prefix + n * 2, "- ");
1019 expand_list(struct listinfo *inf)
1024 newmax = (inf->maxcount + 1) << 1;
1025 newlist = realloc(inf->l.ptr, newmax * inf->elemsize);
1026 if (newlist == NULL) {
1028 errx(1, "realloc to %d %ss failed", newmax, inf->lname);
1030 inf->maxcount = newmax;
1031 inf->l.ptr = newlist;
1037 free_list(struct listinfo *inf)
1040 inf->count = inf->elemsize = inf->maxcount = 0;
1041 if (inf->l.ptr != NULL)
1043 inf->addelem = NULL;
1049 init_list(struct listinfo *inf, addelem_rtn artn, int elemsize,
1053 inf->count = inf->maxcount = 0;
1054 inf->elemsize = elemsize;
1055 inf->addelem = artn;
1061 find_varentry(VAR *v)
1063 struct varent *vent;
1065 STAILQ_FOREACH(vent, &varlist, next_ve) {
1066 if (strcmp(vent->var->name, v->name) == 0)
1075 struct varent *vent;
1078 STAILQ_FOREACH(vent, &varlist, next_ve) {
1080 if (v->flag & DSIZ) {
1081 v->dwidth = v->width;
1092 dynsizevars(KINFO *ki)
1094 struct varent *vent;
1098 STAILQ_FOREACH(vent, &varlist, next_ve) {
1100 if (!(v->flag & DSIZ))
1102 i = (v->sproc)( ki);
1105 if (v->width > v->dwidth)
1106 v->width = v->dwidth;
1113 struct varent *vent;
1117 STAILQ_FOREACH(vent, &varlist, next_ve) {
1119 i = strlen(vent->header);
1122 totwidth += v->width + 1; /* +1 for space */
1128 fmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki,
1129 char *comm, int maxlen)
1133 s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen);
1137 #define UREADOK(ki) (forceuread || (ki->ki_p->ki_flag & P_INMEM))
1143 if (ki->ki_p->ki_flag & P_INMEM) {
1145 * The u-area might be swapped out, and we can't get
1146 * at it because we have a crashdump and no swap.
1147 * If it's here fill in these fields, otherwise, just
1154 * save arguments if needed
1157 if (ki->ki_p->ki_stat == SZOMB)
1158 ki->ki_args = strdup("<defunct>");
1159 else if (UREADOK(ki) || (ki->ki_p->ki_args != NULL))
1160 ki->ki_args = strdup(fmt(kvm_getargv, ki,
1161 ki->ki_p->ki_comm, MAXCOMLEN));
1163 asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm);
1164 if (ki->ki_args == NULL)
1165 errx(1, "malloc failed");
1171 ki->ki_env = strdup(fmt(kvm_getenvv, ki,
1174 ki->ki_env = strdup("()");
1175 if (ki->ki_env == NULL)
1176 errx(1, "malloc failed");
1182 /* A macro used to improve the readability of pscomp(). */
1183 #define DIFF_RETURN(a, b, field) do { \
1184 if ((a)->field != (b)->field) \
1185 return (((a)->field < (b)->field) ? -1 : 1); \
1189 pscomp(const void *a, const void *b)
1191 const KINFO *ka, *kb;
1195 /* SORTCPU and SORTMEM are sorted in descending order. */
1196 if (sortby == SORTCPU)
1197 DIFF_RETURN(kb, ka, ki_pcpu);
1198 if (sortby == SORTMEM)
1199 DIFF_RETURN(kb, ka, ki_memsize);
1201 * TTY's are sorted in ascending order, except that all NODEV
1202 * processes come before all processes with a device.
1204 if (ka->ki_p->ki_tdev != kb->ki_p->ki_tdev) {
1205 if (ka->ki_p->ki_tdev == NODEV)
1207 if (kb->ki_p->ki_tdev == NODEV)
1209 DIFF_RETURN(ka, kb, ki_p->ki_tdev);
1212 /* PID's and TID's (threads) are sorted in ascending order. */
1213 DIFF_RETURN(ka, kb, ki_p->ki_pid);
1214 DIFF_RETURN(ka, kb, ki_p->ki_tid);
1220 * ICK (all for getopt), would rather hide the ugliness
1221 * here than taint the main code.
1226 * The old convention that 't' with no trailing tty arg means the users
1227 * tty, is only supported if argv[1] doesn't begin with a '-'. This same
1228 * feature is available with the option 'T', which takes no argument.
1231 kludge_oldps_options(const char *optlist, char *origval, const char *nextarg)
1234 char *argp, *cp, *newopts, *ns, *optp, *pidp;
1237 * See if the original value includes any option which takes an
1238 * argument (and will thus use up the remainder of the string).
1241 if (optlist != NULL) {
1242 for (cp = origval; *cp != '\0'; cp++) {
1243 optp = strchr(optlist, *cp);
1244 if ((optp != NULL) && *(optp + 1) == ':') {
1250 if (argp != NULL && *origval == '-')
1254 * if last letter is a 't' flag with no argument (in the context
1255 * of the oldps options -- option string NOT starting with a '-' --
1256 * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)).
1258 * However, if a flag accepting a string argument is found earlier
1259 * in the option string (including a possible `t' flag), then the
1260 * remainder of the string must be the argument to that flag; so
1261 * do not modify that argument. Note that a trailing `t' would
1262 * cause argp to be set, if argp was not already set by some
1265 len = strlen(origval);
1266 cp = origval + len - 1;
1268 if (*cp == 't' && *origval != '-' && cp == argp) {
1269 if (nextarg == NULL || *nextarg == '-' || isdigitch(*nextarg))
1271 } else if (argp == NULL) {
1273 * The original value did not include any option which takes
1274 * an argument (and that would include `p' and `t'), so check
1275 * the value for trailing number, or comma-separated list of
1276 * numbers, which we will treat as a pid request.
1278 if (isdigitch(*cp)) {
1279 while (cp >= origval && (*cp == ',' || isdigitch(*cp)))
1286 * If nothing needs to be added to the string, then return
1287 * the "original" (although possibly modified) value.
1289 if (*origval == '-' && pidp == NULL)
1293 * Create a copy of the string to add '-' and/or 'p' to the
1296 if ((newopts = ns = malloc(len + 3)) == NULL)
1297 errx(1, "malloc failed");
1299 if (*origval != '-')
1300 *ns++ = '-'; /* add option flag */
1303 strcpy(ns, origval);
1306 * Copy everything before the pid string, add the `p',
1307 * and then copy the pid string.
1309 len = pidp - origval;
1310 memcpy(ns, origval, len);
1324 if (statfs("/proc", &mnt) < 0)
1326 if (strcmp(mnt.f_fstypename, "procfs") != 0)
1334 #define SINGLE_OPTS "[-aCcde" OPT_LAZY_f "HhjlmrSTuvwXxZ]"
1336 (void)fprintf(stderr, "%s\n%s\n%s\n%s\n",
1337 "usage: ps " SINGLE_OPTS " [-O fmt | -o fmt] [-G gid[,gid...]]",
1338 " [-M core] [-N system]",
1339 " [-p pid[,pid...]] [-t tty[,tty...]] [-U user[,user...]]",