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ps.c
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/*-
* 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 <gad@FreeBSD.org>.
* 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 <sys/cdefs.h>
__FBSDID("$FreeBSD: src/bin/ps/ps.c,v 1.110 2005/02/09 17:37:38 ru Exp $");
#include <sys/param.h>
#ifdef __APPLE__
#include <sys/time.h>
#endif /* __APPLE__ */
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/sysctl.h>
#include <sys/mount.h>
#include <sys/resourcevar.h>
#ifdef __APPLE__
#include <assert.h>
#endif
#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <grp.h>
#ifndef __APPLE__
#include <kvm.h>
#endif /* !__APPLE__ */
#include <limits.h>
#include <locale.h>
#include <paths.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "ps.h"
#ifdef __APPLE__
#include <get_compat.h>
#else /* !__APPLE__ */
#define COMPAT_MODE(func, mode) (1)
#endif /* __APPLE__ */
#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
/*
* isdigit takes an `int', but expects values in the range of unsigned char.
* This wrapper ensures that values from a 'char' end up in the correct range.
*/
#define isdigitch(Anychar) isdigit((u_char)(Anychar))
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 velisthead varlist = STAILQ_HEAD_INITIALIZER(varlist);
#ifndef __APPLE__
static int forceuread = DEF_UREAD; /* Do extra work to get u-area. */
static kvm_t *kd;
#endif /* !__APPLE__ */
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;
};
#ifndef __APPLE__
static int check_procfs(void);
#endif /* !__APPLE__ */
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 *);
#ifndef __APPLE__
static const char *
fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int),
KINFO *, char *, int);
#endif /* !__APPLE__ */
static void free_list(struct listinfo *);
static void init_list(struct listinfo *, addelem_rtn, int, const char *);
static char *kludge_oldps_options(const char *, char *, const char *, int *);
static int pscomp(const void *, const void *);
static void saveuser(KINFO *);
static void scanvars(void);
static void sizevars(void);
static void usage(int);
/* 5842004: Fix -f option. */
VAR *findvar(char *, int, char **);
/* p_ == POSIX/SUSv3/UNIX2003 format */
static char dfmt[] = "pid,tt,state,time,command";
static char jfmt[] = "user,pid,ppid,pgid,sess,jobc,state,tt,time,command";
static char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,wchan,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";
#ifndef __APPLE__
static char Zfmt[] = "label";
#endif /* !__APPLE__ */
char p_dfmt[] = "pid tty time command=CMD";
char p_ffmt[] = "uid pid ppid cpu=C start=STIME tty time command=CMD";
char p_uffmt[] = "user pid ppid cpu=C start=STIME tty time command=CMD";
char p_lfmt[] = "uid pid ppid flags cpu pri nice vsz=SZ rss wchan state=S paddr=ADDR tty time command=CMD";
char mfmt[] = "user pid tt %cpu state pri stime utime command";
int eflg = 0;
int mflg = 0; /* if -M option to display all mach threads */
int print_thread_num = 0;
int print_all_thread = 0;
#define PS_ARGS (u03 ? "aACcdeEfg:G:hjLlMmO:o:p:rSTt:U:u:vwx" : \
"aACcdeEgG:hjLlMmO:o:p:rSTt:U:uvwx")
int
main(int argc, char *argv[])
{
struct listinfo gidlist, pgrplist, pidlist;
struct listinfo ruidlist, sesslist, ttylist, uidlist;
struct kinfo_proc *kp;
KINFO *next_KINFO;
struct varent *vent;
struct winsize ws;
#ifndef __APPLE__
const char *nlistf, *memf;
#endif /* !__APPLE__ */
char *cols;
int all, ch, elem, flag, _fmt, i, lineno;
int nentries, nkept, nselectors;
int prtheader, showthreads, wflag, what, xkeep, xkeep_implied;
#ifndef __APPLE__
char errbuf[_POSIX2_LINE_MAX];
#endif /* !__APPLE__ */
struct kinfo_proc *kprocbuf;
int j;
int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_ALL, 0 };
size_t bufSize = 0;
size_t orig_bufSize = 0;
int local_error=0;
int retry_count = 0;
int u03 = COMPAT_MODE("bin/ps", "unix2003");
#ifdef __APPLE__
int dflag = 0;
#endif /* __APPLE__ */
(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;
/*
* Hide a number of option-processing kludges in a separate routine,
* to support some historical BSD behaviors, such as `ps axu'.
*/
if (argc > 1)
argv[1] = kludge_oldps_options(PS_ARGS, argv[1], argv[2], &u03);
all = _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");
#ifndef __APPLE__
memf = nlistf = _PATH_DEVNULL;
#endif /* !__APPLE__ */
while ((ch = getopt(argc, argv, PS_ARGS)) != -1)
switch ((char)ch) {
#ifdef __APPLE__
case 'd':
dflag = 1;
#endif /* __APPLE__ */
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 */
if (u03) {
nselectors++;
all = xkeep = 1;
break;
}
case 'E':
needenv = 1;
eflg = 1;
break;
#ifdef LAZY_PS
case 'f':
if (getuid() == 0 || getgid() == 0)
forceuread = 1;
break;
#endif
case 'f':
termwidth = UNLIMITED; /* 4990408 */
if (u03 && uidlist.count == 0) {
parsefmt(p_ffmt, 0);
/* This is a unplesent little trick that makes
./ps -f -p PID -o pid,comm,args
print out the whole command even if they slap
more fields on after it and gobble up too much
space */
VAR *v = findvar("command", 0, NULL);
if (v) {
v->width = 64;
}
} else {
parsefmt(p_uffmt, 0);
}
_fmt = 1;
break;
case 'G':
add_list(&gidlist, optarg);
xkeep_implied = 1;
nselectors++;
break;
case 'g':
/* The historical BSD-ish (from SunOS) behavior. */
if (!u03) break;
add_list(&pgrplist, optarg);
xkeep_implied = 1;
nselectors++;
break;
#ifndef __APPLE__
case 'H':
showthreads = KERN_PROC_INC_THREAD;
break;
#endif /* !__APPLE__ */
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(u03 ? p_lfmt : lfmt, 0);
_fmt = 1;
lfmt[0] = '\0';
break;
case 'M':
#if !PS_ENTITLEMENT_ENFORCED
#ifndef __APPLE__
memf = optarg;
#else
parsefmt(mfmt, 0);
_fmt = 1;
mfmt[0] = '\0';
mflg = 1;
#endif /* !__APPLE__ */
#else /* PS_ENTITLEMENT_ENFORCED */
errx(1, "-M requires entitlement");
#endif /* !PS_ENTITLEMENT_ENFORCED */
break;
case 'm':
#if !PS_ENTITLEMENT_ENFORCED
sortby = SORTMEM;
#else
errx(1, "-m requires entitlement");
#endif /* !PS_ENTITLEMENT_ENFORCED */
break;
#ifndef __APPLE__
case 'N':
nlistf = optarg;
break;
#endif /* !__APPLE__ */
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;
case 'r':
sortby = SORTCPU;
break;
case 'S':
sumrusage = 1;
break;
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':
add_list(&ruidlist, optarg);
xkeep_implied = 1;
nselectors++;
break;
case 'u':
if (u03) {
/* This is what SUSv3 defines as the `-u' option. */
add_list(&uidlist, optarg);
xkeep_implied = 1;
nselectors++;
break;
}
parsefmt(ufmt, 0);
sortby = SORTCPU;
_fmt = 1;
ufmt[0] = '\0';
break;
case 'v':
parsefmt(vfmt, 0);
#if !PS_ENTITLEMENT_ENFORCED
/*
* rdar://problem/84512155 - this isn't likely to be
* used in unentitled builds, but if it is, we'll just
* use the normal sort order.
*/
sortby = SORTMEM;
#endif
_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 '?':
default:
usage(u03);
}
argc -= optind;
argv += optind;
#ifdef __APPLE__
/* 3862041 */
if (!isatty(STDOUT_FILENO))
termwidth = UNLIMITED;
#endif /* __APPLE__ */
/*
* If the user specified ps -e then they want a copy of the process
* environment kvm_getenvv(3) attempts to open /proc/<pid>/mem.
* Check to make sure that procfs is mounted on /proc, otherwise
* print a warning informing the user that output will be incomplete.
*/
#ifndef __APPLE__
if (needenv == 1 && check_procfs() == 0)
warnx("Process environment requires procfs(5)");
#endif /* !__APPLE__ */
/*
* If there arguments after processing all the options, attempt
* to treat them as a list of process ids.
*/
while (*argv) {
if (!isdigitch(**argv))
break;
add_list(&pidlist, *argv);
argv++;
}
if (*argv) {
fprintf(stderr, "%s: illegal argument: %s\n",
getprogname(), *argv);
usage(u03);
}
if (optfatal)
exit(1); /* Error messages already printed. */
if (xkeep < 0) /* Neither -X nor -x was specified. */
xkeep = xkeep_implied;
#if FIXME
kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf);
if (kd == 0)
errx(1, "%s", errbuf);
#endif /* FIXME */
if (!_fmt) {
if (u03 && uidlist.count != 0) {
parsefmt("uid", 0);
}
parsefmt(u03 ? p_dfmt : 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 = KERN_PROC_ALL;
flag = 0;
if (nselectors == 1) {
if (gidlist.count == 1) {
#if 0
what = KERN_PROC_RGID | showthreads;
flag = *gidlist.l.gids;
nselectors = 0;
#endif /* 0 */
} else 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;
} else if (sesslist.count == 1) {
what = KERN_PROC_SESSION | showthreads;
flag = *sesslist.l.pids;
nselectors = 0;
} else if (ttylist.count == 1) {
what = KERN_PROC_TTY | showthreads;
flag = *ttylist.l.ttys;
nselectors = 0;
} else if (uidlist.count == 1) {
what = (xkeep ? KERN_PROC_RUID : KERN_PROC_UID) | showthreads;
flag = *uidlist.l.uids;
nselectors = 0;
}
}
/*
* select procs
*/
nentries = -1;
#if FIXME
kp = kvm_getprocs(kd, what, flag, &nentries);
if ((kp == NULL && nentries > 0) || (kp != NULL && nentries < 0))
errx(1, "%s", kvm_geterr(kd));
#else /* FIXME */
mib[0] = CTL_KERN;
mib[1] = KERN_PROC;
mib[2] = what;
mib[3] = flag;
if (sysctl(mib, 4, NULL, &bufSize, NULL, 0) < 0) {
perror("Failure calling sysctl");
return 0;
}
kprocbuf= kp = (struct kinfo_proc *)malloc(bufSize);
retry_count = 0;
orig_bufSize = bufSize;
for(retry_count=0; ; retry_count++) {
/* retry for transient errors due to load in the system */
local_error = 0;
bufSize = orig_bufSize;
if ((local_error = sysctl(mib, 4, kp, &bufSize, NULL, 0)) < 0) {
if (retry_count < 1000) {
/*
* The space required may have grown since the initial check and
* there is no guarantee it will drop back down even after 1000
* iterations, so realloc the buffer before trying again.
*/
if (errno == ENOMEM) {
if (sysctl(mib, 4, NULL, &bufSize, NULL, 0) == 0) {
kprocbuf = kp = (struct kinfo_proc *)realloc(kp, bufSize);
orig_bufSize = bufSize;
continue;
}
}
/* 1 sec back off */
sleep(1);
continue;
}
perror("Failure calling sysctl");
return 0;
} else if (local_error == 0) {
break;
}
/* 1 sec back off */
sleep(1);
}
/* This has to be after the second sysctl since the bufSize
may have changed. */
nentries = bufSize / sizeof(struct kinfo_proc);
#endif /* FIXME */
nkept = 0;
if (nentries > 0) {
if ((kinfo = calloc(nentries, sizeof(*kinfo))) == NULL)
errx(1, "malloc failed");
for (i = nentries; --i >= 0; ++kp) {
#ifdef __APPLE__
if (kp->kp_proc.p_pid == 0) {
continue;
}
#endif /* __APPLE__ */
#ifdef __APPLE__
if (dflag && (kp->kp_proc.p_pid == kp->kp_eproc.e_pgid))
continue;
#endif /* __APPLE__ */
/*
* 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->kp_proc.p_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->kp_eproc.e_tdev == NODEV ||
(kp->kp_proc.p_flag & P_CONTROLT) == 0))
continue;
#ifdef __APPLE__
/* rdar://problem/86332769 */
if (devname(kp->kp_eproc.e_tdev, S_IFCHR) ==
NULL)
continue;
#endif
}
if (all || nselectors == 0)
goto keepit;
if (gidlist.count > 0) {
for (elem = 0; elem < gidlist.count; elem++)
if (kp->kp_eproc.e_pcred.p_rgid == gidlist.l.gids[elem])
goto keepit;
}
if (pgrplist.count > 0) {
for (elem = 0; elem < pgrplist.count; elem++)
if (kp->kp_eproc.e_pgid ==
pgrplist.l.pids[elem])
goto keepit;
}
if (ruidlist.count > 0) {
for (elem = 0; elem < ruidlist.count; elem++)
if (kp->kp_eproc.e_pcred.p_ruid ==
ruidlist.l.uids[elem])
goto keepit;
}
#if 0
if (sesslist.count > 0) {
for (elem = 0; elem < sesslist.count; elem++)
if (kp->ki_sid == sesslist.l.pids[elem])
goto keepit;
}
#endif
if (ttylist.count > 0) {
for (elem = 0; elem < ttylist.count; elem++)
if (kp->kp_eproc.e_tdev == ttylist.l.ttys[elem])
goto keepit;
}
if (uidlist.count > 0) {
for (elem = 0; elem < uidlist.count; elem++)
if (kp->kp_eproc.e_ucred.cr_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:
next_KINFO = &kinfo[nkept];
next_KINFO->ki_p = kp;
#if defined(__APPLE__) && !PS_ENTITLEMENT_ENFORCED
get_task_info(next_KINFO);
#elif !defined(__APPLE__)
next_KINFO->ki_pcpu = getpcpu(next_KINFO);
if (sortby == SORTMEM)
next_KINFO->ki_memsize = kp->ki_tsize +
kp->ki_dsize + kp->ki_ssize;
#endif /* __APPLE__ && !PS_ENTITLEMENT_ENFORCED */
if (needuser)
saveuser(next_KINFO);
dynsizevars(next_KINFO);
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++) {
#if !PS_ENTITLEMENT_ENFORCED
if(mflg) {
print_all_thread = 1;
for(j=0; j < kinfo[i].thread_count; j++) {
print_thread_num = j;
STAILQ_FOREACH(vent, &varlist, next_ve) {
(vent->var->oproc)(&kinfo[i], vent);
if (STAILQ_NEXT(vent, next_ve) != NULL)
(void)putchar(' ');
}
(void)putchar('\n');
if (prtheader && lineno++ == prtheader - 4) {
(void)putchar('\n');
printheader();
lineno = 0;
}
}
print_all_thread = 0;
} else {
#else
{
#endif
STAILQ_FOREACH(vent, &varlist, next_ve) {
(vent->var->oproc)(&kinfo[i], vent);
if (STAILQ_NEXT(vent, next_ve) != NULL)
(void)putchar(' ');
}
(void)putchar('\n');
if (prtheader && lineno++ == prtheader - 4) {
(void)putchar('\n');
printheader();
lineno = 0;
}
}
}
for (i = 0; i < nkept; i++) {
if (kinfo[i].invalid_tinfo == 0 && kinfo[i].thread_count)
free(kinfo[i].thval);
}
free(kprocbuf);
free(kinfo);
free_list(&gidlist);
free_list(&pidlist);
free_list(&pgrplist);
free_list(&ruidlist);
free_list(&sesslist);
free_list(&ttylist);
free_list(&uidlist);
#ifdef __APPLE__
if (eval == 0 && (ferror(stdout) != 0 || fflush(stdout) != 0))
err(1, "stdout");
#endif
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);
}
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') {
warnx("Invalid (zero-length) process id");
optfatal = 1;
return (0); /* Do not add this value. */
}
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);
}
if (inf->count >= inf->maxcount)
expand_list(inf);
inf->l.pids[(inf->count)++] = tempid;
return (1);
}
#undef BSD_PID_MAX
/*-
* The user can specify a device via one of three formats:
* 1) fully qualified, e.g.: /dev/ttyp0 /dev/console
* 2) missing "/dev", e.g.: ttyp0 console
* 3) two-letters, e.g.: p0 co
* (matching letters that would be seen in the "TT" column)
*/
static int
addelem_tty(struct listinfo *inf, const char *elem)
{
const char *ttypath;
struct stat sb;
char pathbuf[PATH_MAX], pathbuf2[PATH_MAX];
ttypath = NULL;
pathbuf2[0] = '\0';
switch (*elem) {
case '/':
ttypath = elem;
break;
case 'c':
if (strcmp(elem, "co") == 0) {
ttypath = _PATH_CONSOLE;
break;
}
/* FALLTHROUGH */
default:
strlcpy(pathbuf, _PATH_DEV, sizeof(pathbuf));
strlcat(pathbuf, elem, sizeof(pathbuf));
ttypath = pathbuf;
if (strncmp(pathbuf, _PATH_TTY, strlen(_PATH_TTY)) == 0)
break;
if (strcmp(pathbuf, _PATH_CONSOLE) == 0)
break;
/* Check to see if /dev/tty${elem} exists */
strlcpy(pathbuf2, _PATH_TTY, sizeof(pathbuf2));
strlcat(pathbuf2, elem, sizeof(pathbuf2));
if (stat(pathbuf2, &sb) == 0 && S_ISCHR(sb.st_mode)) {
/* No need to repeat stat() && S_ISCHR() checks */
ttypath = NULL;
break;
}
break;
}
if (ttypath) {
#ifdef __APPLE__
if (access(ttypath, F_OK) == -1 || stat(ttypath, &sb) == -1) {
#else
if (stat(ttypath, &sb) == -1) {
#endif
if (pathbuf2[0] != '\0')
warn("%s and %s", pathbuf2, ttypath);
else
warn("%s", ttypath);
optfatal = 1;
return (0);
}
if (!S_ISCHR(sb.st_mode)) {
if (pathbuf2[0] != '\0')
warnx("%s and %s: Not a terminal", pathbuf2,
ttypath);
else
warnx("%s: Not a terminal", ttypath);
optfatal = 1;
return (0);
}
}
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)