/*- * 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. * 4. 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. * ------+---------+---------+-------- + --------+---------+---------+---------* * Copyright (c) 2004 - Garance Alistair Drosehn . * All rights reserved. * * Significant modifications made to bring `ps' options somewhat closer * to the standard for `ps' as described in SingleUnixSpec-v3. * ------+---------+---------+-------- + --------+---------+---------+---------* */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1990, 1993, 1994\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #if 0 #ifndef lint static char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94"; #endif /* not lint */ #endif #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "ps.h" #define W_SEP " \t" /* "Whitespace" list separators */ #define T_SEP "," /* "Terminate-element" list separators */ #ifdef LAZY_PS #define DEF_UREAD 0 #define OPT_LAZY_f "f" #else #define DEF_UREAD 1 /* Always do the more-expensive read. */ #define OPT_LAZY_f /* I.e., the `-f' option is not added. */ #endif int cflag; /* -c */ int eval; /* Exit value */ time_t now; /* Current time(3) value */ int rawcpu; /* -C */ int sumrusage; /* -S */ int termwidth; /* Width of the screen (0 == infinity). */ int totwidth; /* Calculated-width of requested variables. */ struct varent *vhead; static int forceuread = DEF_UREAD; /* Do extra work to get u-area. */ static kvm_t *kd; static KINFO *kinfo; static int needcomm; /* -o "command" */ static int needenv; /* -e */ static int needuser; /* -o "user" */ static int optfatal; /* Fatal error parsing some list-option. */ static enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT; struct listinfo; typedef int addelem_rtn(struct listinfo *_inf, const char *_elem); struct listinfo { int count; int maxcount; int elemsize; addelem_rtn *addelem; const char *lname; union { gid_t *gids; pid_t *pids; dev_t *ttys; uid_t *uids; void *ptr; } l; }; static int addelem_gid(struct listinfo *, const char *); static int addelem_pid(struct listinfo *, const char *); static int addelem_tty(struct listinfo *, const char *); static int addelem_uid(struct listinfo *, const char *); static void add_list(struct listinfo *, const char *); static void dynsizevars(KINFO *); static void *expand_list(struct listinfo *); static const char * fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int), KINFO *, char *, int); static void free_list(struct listinfo *); static void init_list(struct listinfo *, addelem_rtn, int, const char *); static char *kludge_oldps_options(char *); static int pscomp(const void *, const void *); static void saveuser(KINFO *); static void scanvars(void); static void sizevars(void); static void usage(void); static char dfmt[] = "pid,tt,state,time,command"; static char jfmt[] = "user,pid,ppid,pgid,jobc,state,tt,time,command"; static char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state," "tt,time,command"; static char o1[] = "pid"; static char o2[] = "tt,state,time,command"; static char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command"; static char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz," "%cpu,%mem,command"; static char Zfmt[] = "label"; #define PS_ARGS "AaCce" OPT_LAZY_f "G:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ" int main(int argc, char *argv[]) { struct listinfo gidlist, pgrplist, pidlist; struct listinfo ruidlist, sesslist, ttylist, uidlist; struct kinfo_proc *kp; struct varent *vent; struct winsize ws; const char *cp, *nlistf, *memf; char *cols; int all, ch, dropgid, elem, flag, _fmt, i, lineno; int nentries, nocludge, nkept, nselectors; int prtheader, showthreads, wflag, what, xkeep, xkeep_implied; char errbuf[_POSIX2_LINE_MAX]; (void) setlocale(LC_ALL, ""); time(&now); /* Used by routines in print.c. */ if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0') termwidth = atoi(cols); else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 && ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) || ws.ws_col == 0) termwidth = 79; else termwidth = ws.ws_col - 1; /* * Don't apply a kludge if the first argument is an option taking an * argument */ if (argc > 1) { nocludge = 0; if (argv[1][0] == '-') { for (cp = PS_ARGS; *cp != '\0'; cp++) { if (*cp != ':') continue; if (*(cp - 1) == argv[1][1]) { nocludge = 1; break; } } } if (nocludge == 0) argv[1] = kludge_oldps_options(argv[1]); } all = dropgid = _fmt = nselectors = optfatal = 0; prtheader = showthreads = wflag = xkeep_implied = 0; xkeep = -1; /* Neither -x nor -X. */ init_list(&gidlist, addelem_gid, sizeof(gid_t), "group"); init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group"); init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id"); init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser"); init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id"); init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty"); init_list(&uidlist, addelem_uid, sizeof(uid_t), "user"); memf = nlistf = _PATH_DEVNULL; while ((ch = getopt(argc, argv, PS_ARGS)) != -1) switch((char)ch) { case 'A': /* * Exactly the same as `-ax'. This has been * added for compatability with SUSv3, but for * now it will not be described in the man page. */ nselectors++; all = xkeep = 1; break; case 'a': nselectors++; all = 1; break; case 'C': rawcpu = 1; break; case 'c': cflag = 1; break; case 'e': /* XXX set ufmt */ needenv = 1; break; #ifdef LAZY_PS case 'f': if (getuid() == 0 || getgid() == 0) forceuread = 1; break; #endif case 'G': add_list(&gidlist, optarg); xkeep_implied = 1; nselectors++; break; case 'g': #if 0 /*- * XXX - This SUSv3 behavior is still under debate * since it conflicts with the (undocumented) * `-g' option. So we skip it for now. */ add_list(&pgrplist, optarg); xkeep_implied = 1; nselectors++; break; #else /* The historical BSD-ish (from SunOS) behavior. */ break; /* no-op */ #endif case 'H': showthreads = KERN_PROC_INC_THREAD; break; case 'h': prtheader = ws.ws_row > 5 ? ws.ws_row : 22; break; case 'j': parsefmt(jfmt, 0); _fmt = 1; jfmt[0] = '\0'; break; case 'L': showkey(); exit(0); case 'l': parsefmt(lfmt, 0); _fmt = 1; lfmt[0] = '\0'; break; case 'M': memf = optarg; dropgid = 1; break; case 'm': sortby = SORTMEM; break; case 'N': nlistf = optarg; dropgid = 1; break; case 'O': parsefmt(o1, 1); parsefmt(optarg, 1); parsefmt(o2, 1); o1[0] = o2[0] = '\0'; _fmt = 1; break; case 'o': parsefmt(optarg, 1); _fmt = 1; break; case 'p': add_list(&pidlist, optarg); /* * Note: `-p' does not *set* xkeep, but any values * from pidlist are checked before xkeep is. That * way they are always matched, even if the user * specifies `-X'. */ nselectors++; break; #if 0 case 'R': /*- * XXX - This un-standard option is still under * debate. This is what SUSv3 defines as * the `-U' option, and while it would be * nice to have, it could cause even more * confusion to implement it as `-R'. */ add_list(&ruidlist, optarg); xkeep_implied = 1; nselectors++; break; #endif case 'r': sortby = SORTCPU; break; case 'S': sumrusage = 1; break; #if 0 case 's': /*- * XXX - This non-standard option is still under * debate. This *is* supported on Solaris, * Linux, and IRIX, but conflicts with `-s' * on NetBSD and maybe some older BSD's. */ add_list(&sesslist, optarg); xkeep_implied = 1; nselectors++; break; #endif case 'T': if ((optarg = ttyname(STDIN_FILENO)) == NULL) errx(1, "stdin: not a terminal"); /* FALLTHROUGH */ case 't': add_list(&ttylist, optarg); xkeep_implied = 1; nselectors++; break; case 'U': /* This is what SUSv3 defines as the `-u' option. */ add_list(&uidlist, optarg); xkeep_implied = 1; nselectors++; break; case 'u': parsefmt(ufmt, 0); sortby = SORTCPU; _fmt = 1; ufmt[0] = '\0'; break; case 'v': parsefmt(vfmt, 0); sortby = SORTMEM; _fmt = 1; vfmt[0] = '\0'; break; case 'w': if (wflag) termwidth = UNLIMITED; else if (termwidth < 131) termwidth = 131; wflag++; break; case 'X': /* * Note that `-X' and `-x' are not standard "selector" * options. For most selector-options, we check *all* * processes to see if any are matched by the given * value(s). After we have a set of all the matched * processes, then `-X' and `-x' govern whether we * modify that *matched* set for processes which do * not have a controlling terminal. `-X' causes * those processes to be deleted from the matched * set, while `-x' causes them to be kept. */ xkeep = 0; break; case 'x': xkeep = 1; break; case 'Z': parsefmt(Zfmt, 0); Zfmt[0] = '\0'; break; case '?': default: usage(); } argc -= optind; argv += optind; if (optfatal) exit(1); /* Error messages already printed. */ if (xkeep < 0) /* Neither -X nor -x was specified. */ xkeep = xkeep_implied; #define BACKWARD_COMPATIBILITY #ifdef BACKWARD_COMPATIBILITY if (*argv) { nlistf = *argv; if (*++argv) memf = *argv; } #endif /* * Discard setgid privileges if not the running kernel so that bad * guys can't print interesting stuff from kernel memory. */ if (dropgid) { setgid(getgid()); setuid(getuid()); } kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf); if (kd == 0) errx(1, "%s", errbuf); if (!_fmt) parsefmt(dfmt, 0); if (nselectors == 0) { uidlist.l.ptr = malloc(sizeof(uid_t)); if (uidlist.l.ptr == NULL) errx(1, "malloc failed"); nselectors = 1; uidlist.count = uidlist.maxcount = 1; *uidlist.l.uids = getuid(); } /* * scan requested variables, noting what structures are needed, * and adjusting header widths as appropriate. */ scanvars(); /* * Get process list. If the user requested just one selector- * option, then kvm_getprocs can be asked to return just those * processes. Otherwise, have it return all processes, and * then this routine will search that full list and select the * processes which match any of the user's selector-options. */ what = showthreads != 0 ? KERN_PROC_ALL : KERN_PROC_PROC; flag = 0; if (nselectors == 1) { /* XXX - Apparently there's no KERN_PROC_GID flag. */ if (pgrplist.count == 1) { what = KERN_PROC_PGRP | showthreads; flag = *pgrplist.l.pids; nselectors = 0; } else if (pidlist.count == 1) { what = KERN_PROC_PID | showthreads; flag = *pidlist.l.pids; nselectors = 0; } else if (ruidlist.count == 1) { what = KERN_PROC_RUID | showthreads; flag = *ruidlist.l.uids; nselectors = 0; #if 0 /*- * XXX - KERN_PROC_SESSION causes error in kvm_getprocs? * For now, always do sid-matching in this routine. */ } else if (sesslist.count == 1) { what = KERN_PROC_SESSION | showthreads; flag = *sesslist.l.pids; nselectors = 0; #endif } else if (ttylist.count == 1) { what = KERN_PROC_TTY | showthreads; flag = *ttylist.l.ttys; nselectors = 0; } else if (uidlist.count == 1) { what = KERN_PROC_UID | showthreads; flag = *uidlist.l.uids; nselectors = 0; } else if (all) { /* No need for this routine to select processes. */ nselectors = 0; } } /* * select procs */ nentries = -1; kp = kvm_getprocs(kd, what, flag, &nentries); if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0)) errx(1, "%s", kvm_geterr(kd)); nkept = 0; if (nentries > 0) { if ((kinfo = malloc(nentries * sizeof(*kinfo))) == NULL) errx(1, "malloc failed"); for (i = nentries; --i >= 0; ++kp) { /* * If the user specified multiple selection-criteria, * then keep any process matched by the inclusive OR * of all the selection-criteria given. */ if (pidlist.count > 0) { for (elem = 0; elem < pidlist.count; elem++) if (kp->ki_pid == pidlist.l.pids[elem]) goto keepit; } /* * Note that we had to process pidlist before * filtering out processes which do not have * a controlling terminal. */ if (xkeep == 0) { if ((kp->ki_tdev == NODEV || (kp->ki_flag & P_CONTROLT) == 0)) continue; } if (nselectors == 0) goto keepit; if (gidlist.count > 0) { for (elem = 0; elem < gidlist.count; elem++) if (kp->ki_rgid == gidlist.l.gids[elem]) goto keepit; } if (pgrplist.count > 0) { for (elem = 0; elem < pgrplist.count; elem++) if (kp->ki_pgid == pgrplist.l.pids[elem]) goto keepit; } if (ruidlist.count > 0) { for (elem = 0; elem < ruidlist.count; elem++) if (kp->ki_ruid == ruidlist.l.uids[elem]) goto keepit; } if (sesslist.count > 0) { for (elem = 0; elem < sesslist.count; elem++) if (kp->ki_sid == sesslist.l.pids[elem]) goto keepit; } if (ttylist.count > 0) { for (elem = 0; elem < ttylist.count; elem++) if (kp->ki_tdev == ttylist.l.ttys[elem]) goto keepit; } if (uidlist.count > 0) { for (elem = 0; elem < uidlist.count; elem++) if (kp->ki_uid == uidlist.l.uids[elem]) goto keepit; } /* * This process did not match any of the user's * selector-options, so skip the process. */ continue; keepit: kinfo[nkept].ki_p = kp; if (needuser) saveuser(&kinfo[nkept]); dynsizevars(&kinfo[nkept]); nkept++; } } sizevars(); /* * print header */ printheader(); if (nkept == 0) exit(1); /* * sort proc list */ qsort(kinfo, nkept, sizeof(KINFO), pscomp); /* * For each process, call each variable output function. */ for (i = lineno = 0; i < nkept; i++) { for (vent = vhead; vent; vent = vent->next) { (vent->var->oproc)(&kinfo[i], vent); if (vent->next != NULL) (void)putchar(' '); } (void)putchar('\n'); if (prtheader && lineno++ == prtheader - 4) { (void)putchar('\n'); printheader(); lineno = 0; } } free_list(&gidlist); free_list(&pidlist); free_list(&pgrplist); free_list(&ruidlist); free_list(&sesslist); free_list(&ttylist); free_list(&uidlist); exit(eval); } static int addelem_gid(struct listinfo *inf, const char *elem) { struct group *grp; const char *nameorID; char *endp; u_long bigtemp; if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { if (*elem == '\0') warnx("Invalid (zero-length) %s name", inf->lname); else warnx("%s name too long: %s", inf->lname, elem); optfatal = 1; return (0); /* Do not add this value. */ } /* * SUSv3 states that `ps -G grouplist' should match "real-group * ID numbers", and does not mention group-names. I do want to * also support group-names, so this tries for a group-id first, * and only tries for a name if that doesn't work. This is the * opposite order of what is done in addelem_uid(), but in * practice the order would only matter for group-names which * are all-numeric. */ grp = NULL; nameorID = "named"; errno = 0; bigtemp = strtoul(elem, &endp, 10); if (errno == 0 && *endp == '\0' && bigtemp <= GID_MAX) { nameorID = "name or ID matches"; grp = getgrgid((gid_t)bigtemp); } if (grp == NULL) grp = getgrnam(elem); if (grp == NULL) { warnx("No %s %s '%s'", inf->lname, nameorID, elem); optfatal = 1; return (0); /* Do not add this value. */ } if (inf->count >= inf->maxcount) expand_list(inf); inf->l.gids[(inf->count)++] = grp->gr_gid; return (1); } #define BSD_PID_MAX 99999 /* Copy of PID_MAX from sys/proc.h. */ static int addelem_pid(struct listinfo *inf, const char *elem) { char *endp; long tempid; if (*elem == '\0') tempid = 0L; else { errno = 0; tempid = strtol(elem, &endp, 10); if (*endp != '\0' || tempid < 0 || elem == endp) { warnx("Invalid %s: %s", inf->lname, elem); errno = ERANGE; } else if (errno != 0 || tempid > BSD_PID_MAX) { warnx("%s too large: %s", inf->lname, elem); errno = ERANGE; } if (errno == ERANGE) { optfatal = 1; return (0); /* Do not add this value. */ } } if (inf->count >= inf->maxcount) expand_list(inf); inf->l.pids[(inf->count)++] = tempid; return (1); } #undef BSD_PID_MAX static int addelem_tty(struct listinfo *inf, const char *elem) { const char *ttypath; struct stat sb; char pathbuf[PATH_MAX]; if (strcmp(elem, "co") == 0) ttypath = strdup(_PATH_CONSOLE); else if (*elem == '/') ttypath = elem; else { strlcpy(pathbuf, _PATH_TTY, sizeof(pathbuf)); strlcat(pathbuf, elem, sizeof(pathbuf)); ttypath = pathbuf; } if (stat(ttypath, &sb) == -1) { warn("%s", ttypath); optfatal = 1; return (0); /* Do not add this value. */ } if (!S_ISCHR(sb.st_mode)) { warn("%s: Not a terminal", ttypath); optfatal = 1; return (0); /* Do not add this value. */ } if (inf->count >= inf->maxcount) expand_list(inf); inf->l.ttys[(inf->count)++] = sb.st_rdev; return (1); } static int addelem_uid(struct listinfo *inf, const char *elem) { struct passwd *pwd; char *endp; u_long bigtemp; if (*elem == '\0' || strlen(elem) >= MAXLOGNAME) { if (*elem == '\0') warnx("Invalid (zero-length) %s name", inf->lname); else warnx("%s name too long: %s", inf->lname, elem); optfatal = 1; return (0); /* Do not add this value. */ } pwd = getpwnam(elem); if (pwd == NULL) { errno = 0; bigtemp = strtoul(elem, &endp, 10); if (errno != 0 || *endp != '\0' || bigtemp > UID_MAX) warnx("No %s named '%s'", inf->lname, elem); else { /* The string is all digits, so it might be a userID. */ pwd = getpwuid((uid_t)bigtemp); if (pwd == NULL) warnx("No %s name or ID matches '%s'", inf->lname, elem); } } if (pwd == NULL) { /* * These used to be treated as minor warnings (and the * option was simply ignored), but now they are fatal * errors (and the command will be aborted). */ optfatal = 1; return (0); /* Do not add this value. */ } if (inf->count >= inf->maxcount) expand_list(inf); inf->l.uids[(inf->count)++] = pwd->pw_uid; return (1); } static void add_list(struct listinfo *inf, const char *argp) { const char *savep; char *cp, *endp; int toolong; char elemcopy[PATH_MAX]; while (*argp != '\0') { while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) argp++; savep = argp; toolong = 0; cp = elemcopy; if (strchr(T_SEP, *argp) == NULL) { endp = elemcopy + sizeof(elemcopy) - 1; while (*argp != '\0' && cp <= endp && strchr(W_SEP T_SEP, *argp) == NULL) *cp++ = *argp++; if (cp > endp) toolong = 1; } if (!toolong) { *cp = '\0'; #ifndef ADD_PS_LISTRESET /* * This is how the standard expects lists to * be handled. */ inf->addelem(inf, elemcopy); #else /*- * This would add a simple non-standard-but-convienent * feature. * * XXX - The first time I tried to add this check, * it increased the total size of `ps' by 3940 * bytes on i386! That's 12% of the entire * program! The `ps.o' file grew by only about * 40 bytes, but the final (stripped) executable * in /bin/ps grew by 12%. I have not had time * to investigate, so skip the feature for now. */ /* * We now have a single element. Add it to the * list, unless the element is ":". In that case, * reset the list so previous entries are ignored. */ if (strcmp(elemcopy, ":") == 0) inf->count = 0; else inf->addelem(inf, elemcopy); #endif } else { /* * The string is too long to copy. Find the end * of the string to print out the warning message. */ while (*argp != '\0' && strchr(W_SEP T_SEP, *argp) == NULL) argp++; warnx("Value too long: %.*s", (int)(argp - savep), savep); optfatal = 1; } /* * Skip over any number of trailing whitespace characters, * but only one (at most) trailing element-terminating * character. */ while (*argp != '\0' && strchr(W_SEP, *argp) != NULL) argp++; if (*argp != '\0' && strchr(T_SEP, *argp) != NULL) { argp++; /* Catch case where string ended with a comma. */ if (*argp == '\0') inf->addelem(inf, argp); } } } static void * expand_list(struct listinfo *inf) { void *newlist; int newmax; newmax = (inf->maxcount + 1) << 1; newlist = realloc(inf->l.ptr, newmax * inf->elemsize); if (newlist == NULL) { free(inf->l.ptr); errx(1, "realloc to %d %ss failed", newmax, inf->lname); } inf->maxcount = newmax; inf->l.ptr = newlist; return (newlist); } static void free_list(struct listinfo *inf) { inf->count = inf->elemsize = inf->maxcount = 0; if (inf->l.ptr != NULL) free(inf->l.ptr); inf->addelem = NULL; inf->lname = NULL; inf->l.ptr = NULL; } static void init_list(struct listinfo *inf, addelem_rtn artn, int elemsize, const char *lname) { inf->count = inf->maxcount = 0; inf->elemsize = elemsize; inf->addelem = artn; inf->lname = lname; inf->l.ptr = NULL; } VARENT * find_varentry(VAR *v) { struct varent *vent; for (vent = vhead; vent; vent = vent->next) { if (strcmp(vent->var->name, v->name) == 0) return vent; } return NULL; } static void scanvars(void) { struct varent *vent; VAR *v; for (vent = vhead; vent; vent = vent->next) { v = vent->var; if (v->flag & DSIZ) { v->dwidth = v->width; v->width = 0; } if (v->flag & USER) needuser = 1; if (v->flag & COMM) needcomm = 1; } } static void dynsizevars(KINFO *ki) { struct varent *vent; VAR *v; int i; for (vent = vhead; vent; vent = vent->next) { v = vent->var; if (!(v->flag & DSIZ)) continue; i = (v->sproc)( ki); if (v->width < i) v->width = i; if (v->width > v->dwidth) v->width = v->dwidth; } } static void sizevars(void) { struct varent *vent; VAR *v; int i; for (vent = vhead; vent; vent = vent->next) { v = vent->var; i = strlen(vent->header); if (v->width < i) v->width = i; totwidth += v->width + 1; /* +1 for space */ } totwidth--; } static const char * fmt(char **(*fn)(kvm_t *, const struct kinfo_proc *, int), KINFO *ki, char *comm, int maxlen) { const char *s; s = fmt_argv((*fn)(kd, ki->ki_p, termwidth), comm, maxlen); return (s); } #define UREADOK(ki) (forceuread || (ki->ki_p->ki_sflag & PS_INMEM)) static void saveuser(KINFO *ki) { if (ki->ki_p->ki_sflag & PS_INMEM) { /* * The u-area might be swapped out, and we can't get * at it because we have a crashdump and no swap. * If it's here fill in these fields, otherwise, just * leave them 0. */ ki->ki_valid = 1; } else ki->ki_valid = 0; /* * save arguments if needed */ if (needcomm && (UREADOK(ki) || (ki->ki_p->ki_args != NULL))) { ki->ki_args = strdup(fmt(kvm_getargv, ki, ki->ki_p->ki_comm, MAXCOMLEN)); } else if (needcomm) { asprintf(&ki->ki_args, "(%s)", ki->ki_p->ki_comm); } else { ki->ki_args = NULL; } if (needenv && UREADOK(ki)) { ki->ki_env = strdup(fmt(kvm_getenvv, ki, (char *)NULL, 0)); } else if (needenv) { ki->ki_env = malloc(3); strcpy(ki->ki_env, "()"); } else { ki->ki_env = NULL; } } static int pscomp(const void *a, const void *b) { const KINFO *ka, *kb; double cpua, cpub; segsz_t sizea, sizeb; ka = a; kb = b; /* SORTCPU and SORTMEM are sorted in descending order. */ if (sortby == SORTCPU) { cpua = getpcpu(ka); cpub = getpcpu(kb); if (cpua < cpub) return (1); if (cpua > cpub) return (-1); } if (sortby == SORTMEM) { sizea = ka->ki_p->ki_tsize + ka->ki_p->ki_dsize + ka->ki_p->ki_ssize; sizeb = kb->ki_p->ki_tsize + kb->ki_p->ki_dsize + kb->ki_p->ki_ssize; if (sizea < sizeb) return (1); if (sizea > sizeb) return (-1); } /* * TTY's are sorted in ascending order, except that all NODEV * processes come before all processes with a device. */ if (ka->ki_p->ki_tdev == NODEV && kb->ki_p->ki_tdev != NODEV) return (-1); if (ka->ki_p->ki_tdev != NODEV && kb->ki_p->ki_tdev == NODEV) return (1); if (ka->ki_p->ki_tdev < kb->ki_p->ki_tdev) return (-1); if (ka->ki_p->ki_tdev > kb->ki_p->ki_tdev) return (1); /* PID's are sorted in ascending order. */ if (ka->ki_p->ki_pid < kb->ki_p->ki_pid) return (-1); if (ka->ki_p->ki_pid > kb->ki_p->ki_pid) return (1); return (0); } /* * ICK (all for getopt), would rather hide the ugliness * here than taint the main code. * * ps foo -> ps -foo * ps 34 -> ps -p34 * * The old convention that 't' with no trailing tty arg means the users * tty, is only supported if argv[1] doesn't begin with a '-'. This same * feature is available with the option 'T', which takes no argument. */ static char * kludge_oldps_options(char *s) { int have_fmt; size_t len; char *newopts, *ns, *cp; /* * If we have an 'o' option, then note it, since we don't want to do * some types of munging. */ have_fmt = index(s, 'o') != NULL; len = strlen(s); if ((newopts = ns = malloc(len + 2)) == NULL) errx(1, "malloc failed"); /* * options begin with '-' */ if (*s != '-') *ns++ = '-'; /* add option flag */ /* * gaze to end of argv[1] */ cp = s + len - 1; /* * if last letter is a 't' flag with no argument (in the context * of the oldps options -- option string NOT starting with a '-' -- * then convert to 'T' (meaning *this* terminal, i.e. ttyname(0)). * * However, if a flag accepting a string argument is found in the * option string, the remainder of the string is the argument to * that flag; do not modify that argument. */ if (strcspn(s, "MNOoU") == len && *cp == 't' && *s != '-') *cp = 'T'; else { /* * otherwise check for trailing number, which *may* be a * pid. */ while (cp >= s && isdigit(*cp)) --cp; } cp++; memmove(ns, s, (size_t)(cp - s)); /* copy up to trailing number */ ns += cp - s; /* * if there's a trailing number, and not a preceding 'p' (pid) or * 't' (tty) flag, then assume it's a pid and insert a 'p' flag. */ if (isdigit(*cp) && (cp == s || (cp[-1] != 't' && cp[-1] != 'p')) && (cp - 1 == s || cp[-2] != 't') && !have_fmt) *ns++ = 'p'; (void)strcpy(ns, cp); /* and append the number */ return (newopts); } static void usage(void) { #define SINGLE_OPTS "[-aC" OPT_LAZY_f "HhjlmrSTuvwXxZ]" (void)fprintf(stderr, "%s\n%s\n%s\n%s\n", "usage: ps " SINGLE_OPTS " [-G gid[,gid]] [-O|o fmt]", " [-p pid[,pid]] [-t tty[,tty]] [-U user[,user]]", " [-M core] [-N system]", " ps [-L]"); exit(1); }