de1702f459
process id, instead of using pid==0. Ie, `ps -p 12,' and `ps -p ,12' are now errors (instead of being treated like `ps -p 0 -p 12'). Noticed by: Cyrille Lefevre on freebsd-arch
1185 lines
29 KiB
C
1185 lines
29 KiB
C
/*-
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* Copyright (c) 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ------+---------+---------+-------- + --------+---------+---------+---------*
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* Copyright (c) 2004 - Garance Alistair Drosehn <gad@FreeBSD.org>.
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* All rights reserved.
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*
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* Significant modifications made to bring `ps' options somewhat closer
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* to the standard for `ps' as described in SingleUnixSpec-v3.
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* ------+---------+---------+-------- + --------+---------+---------+---------*
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1990, 1993, 1994\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#if 0
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#ifndef lint
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static char sccsid[] = "@(#)ps.c 8.4 (Berkeley) 4/2/94";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/sysctl.h>
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#include <ctype.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <grp.h>
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#include <kvm.h>
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#include <limits.h>
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#include <locale.h>
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#include <paths.h>
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#include <pwd.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "ps.h"
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#define W_SEP " \t" /* "Whitespace" list separators */
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#define T_SEP "," /* "Terminate-element" list separators */
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#ifdef LAZY_PS
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#define DEF_UREAD 0
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#define OPT_LAZY_f "f"
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#else
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#define DEF_UREAD 1 /* Always do the more-expensive read. */
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#define OPT_LAZY_f /* I.e., the `-f' option is not added. */
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#endif
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|
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/*
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* isdigit is defined to work on an 'int', in the range 0 to 255, plus EOF.
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* Define a wrapper which can take 'char', either signed or unsigned.
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*/
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#define isdigitch(Anychar) isdigit(((int) Anychar) & 255)
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int cflag; /* -c */
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int eval; /* Exit value */
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time_t now; /* Current time(3) value */
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int rawcpu; /* -C */
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int sumrusage; /* -S */
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int termwidth; /* Width of the screen (0 == infinity). */
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int totwidth; /* Calculated-width of requested variables. */
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struct varent *vhead;
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static int forceuread = DEF_UREAD; /* Do extra work to get u-area. */
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static kvm_t *kd;
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static KINFO *kinfo;
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static int needcomm; /* -o "command" */
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static int needenv; /* -e */
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static int needuser; /* -o "user" */
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static int optfatal; /* Fatal error parsing some list-option. */
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static enum sort { DEFAULT, SORTMEM, SORTCPU } sortby = DEFAULT;
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struct listinfo;
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typedef int addelem_rtn(struct listinfo *_inf, const char *_elem);
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struct listinfo {
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int count;
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int maxcount;
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int elemsize;
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addelem_rtn *addelem;
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const char *lname;
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union {
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gid_t *gids;
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pid_t *pids;
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dev_t *ttys;
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uid_t *uids;
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void *ptr;
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} l;
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};
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static int addelem_gid(struct listinfo *, const char *);
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static int addelem_pid(struct listinfo *, const char *);
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static int addelem_tty(struct listinfo *, const char *);
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static int addelem_uid(struct listinfo *, const char *);
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static void add_list(struct listinfo *, const char *);
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static void dynsizevars(KINFO *);
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static void *expand_list(struct listinfo *);
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static const char *
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fmt(char **(*)(kvm_t *, const struct kinfo_proc *, int),
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KINFO *, char *, int);
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static void free_list(struct listinfo *);
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static void init_list(struct listinfo *, addelem_rtn, int, const char *);
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static char *kludge_oldps_options(const char *opts, char *, const char *);
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static int pscomp(const void *, const void *);
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static void saveuser(KINFO *);
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static void scanvars(void);
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static void sizevars(void);
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static void usage(void);
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static char dfmt[] = "pid,tt,state,time,command";
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static char jfmt[] = "user,pid,ppid,pgid,sid,jobc,state,tt,time,command";
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static char lfmt[] = "uid,pid,ppid,cpu,pri,nice,vsz,rss,mwchan,state,"
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"tt,time,command";
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static char o1[] = "pid";
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static char o2[] = "tt,state,time,command";
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static char ufmt[] = "user,pid,%cpu,%mem,vsz,rss,tt,state,start,time,command";
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static char vfmt[] = "pid,state,time,sl,re,pagein,vsz,rss,lim,tsiz,"
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"%cpu,%mem,command";
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static char Zfmt[] = "label";
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#define PS_ARGS "AaCce" OPT_LAZY_f "G:gHhjLlM:mN:O:o:p:rSTt:U:uvwXxZ"
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int
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main(int argc, char *argv[])
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{
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struct listinfo gidlist, pgrplist, pidlist;
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struct listinfo ruidlist, sesslist, ttylist, uidlist;
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struct kinfo_proc *kp;
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struct varent *vent;
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struct winsize ws;
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const char *nlistf, *memf;
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char *cols;
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int all, ch, dropgid, elem, flag, _fmt, i, lineno;
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int nentries, nkept, nselectors;
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int prtheader, showthreads, wflag, what, xkeep, xkeep_implied;
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char errbuf[_POSIX2_LINE_MAX];
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(void) setlocale(LC_ALL, "");
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time(&now); /* Used by routines in print.c. */
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if ((cols = getenv("COLUMNS")) != NULL && *cols != '\0')
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termwidth = atoi(cols);
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else if ((ioctl(STDOUT_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
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ioctl(STDERR_FILENO, TIOCGWINSZ, (char *)&ws) == -1 &&
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ioctl(STDIN_FILENO, TIOCGWINSZ, (char *)&ws) == -1) ||
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ws.ws_col == 0)
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termwidth = 79;
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else
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termwidth = ws.ws_col - 1;
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/*
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* Hide a number of option-processing kludges in a separate routine,
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* to support some historical BSD behaviors, such as `ps axu'.
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*/
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if (argc > 1)
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argv[1] = kludge_oldps_options(PS_ARGS, argv[1], argv[2]);
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all = dropgid = _fmt = nselectors = optfatal = 0;
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prtheader = showthreads = wflag = xkeep_implied = 0;
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xkeep = -1; /* Neither -x nor -X. */
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init_list(&gidlist, addelem_gid, sizeof(gid_t), "group");
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init_list(&pgrplist, addelem_pid, sizeof(pid_t), "process group");
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init_list(&pidlist, addelem_pid, sizeof(pid_t), "process id");
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init_list(&ruidlist, addelem_uid, sizeof(uid_t), "ruser");
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init_list(&sesslist, addelem_pid, sizeof(pid_t), "session id");
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init_list(&ttylist, addelem_tty, sizeof(dev_t), "tty");
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init_list(&uidlist, addelem_uid, sizeof(uid_t), "user");
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memf = nlistf = _PATH_DEVNULL;
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while ((ch = getopt(argc, argv, PS_ARGS)) != -1)
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switch((char)ch) {
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case 'A':
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/*
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* Exactly the same as `-ax'. This has been
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* added for compatability with SUSv3, but for
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* now it will not be described in the man page.
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*/
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nselectors++;
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all = xkeep = 1;
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break;
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case 'a':
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nselectors++;
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all = 1;
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break;
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case 'C':
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rawcpu = 1;
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break;
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case 'c':
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cflag = 1;
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break;
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case 'e': /* XXX set ufmt */
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needenv = 1;
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break;
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#ifdef LAZY_PS
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case 'f':
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if (getuid() == 0 || getgid() == 0)
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forceuread = 1;
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break;
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#endif
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case 'G':
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add_list(&gidlist, optarg);
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xkeep_implied = 1;
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nselectors++;
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break;
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case 'g':
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#if 0
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/*-
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* XXX - This SUSv3 behavior is still under debate
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* since it conflicts with the (undocumented)
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* `-g' option. So we skip it for now.
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*/
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add_list(&pgrplist, optarg);
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xkeep_implied = 1;
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nselectors++;
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break;
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#else
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/* The historical BSD-ish (from SunOS) behavior. */
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break; /* no-op */
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#endif
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case 'H':
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showthreads = KERN_PROC_INC_THREAD;
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break;
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case 'h':
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prtheader = ws.ws_row > 5 ? ws.ws_row : 22;
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break;
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case 'j':
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parsefmt(jfmt, 0);
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_fmt = 1;
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jfmt[0] = '\0';
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break;
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case 'L':
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showkey();
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exit(0);
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case 'l':
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parsefmt(lfmt, 0);
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_fmt = 1;
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lfmt[0] = '\0';
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break;
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case 'M':
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memf = optarg;
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dropgid = 1;
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break;
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case 'm':
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sortby = SORTMEM;
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break;
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case 'N':
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nlistf = optarg;
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dropgid = 1;
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break;
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case 'O':
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parsefmt(o1, 1);
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parsefmt(optarg, 1);
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parsefmt(o2, 1);
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o1[0] = o2[0] = '\0';
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_fmt = 1;
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break;
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case 'o':
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parsefmt(optarg, 1);
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_fmt = 1;
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break;
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case 'p':
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add_list(&pidlist, optarg);
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/*
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* Note: `-p' does not *set* xkeep, but any values
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* from pidlist are checked before xkeep is. That
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* way they are always matched, even if the user
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* specifies `-X'.
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*/
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nselectors++;
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break;
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#if 0
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case 'R':
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/*-
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* XXX - This un-standard option is still under
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* debate. This is what SUSv3 defines as
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* the `-U' option, and while it would be
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* nice to have, it could cause even more
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* confusion to implement it as `-R'.
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*/
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add_list(&ruidlist, optarg);
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xkeep_implied = 1;
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nselectors++;
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break;
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#endif
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case 'r':
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sortby = SORTCPU;
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break;
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case 'S':
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sumrusage = 1;
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break;
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#if 0
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case 's':
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|
/*-
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* XXX - This non-standard option is still under
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* debate. This *is* supported on Solaris,
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* Linux, and IRIX, but conflicts with `-s'
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* on NetBSD and maybe some older BSD's.
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*/
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add_list(&sesslist, optarg);
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xkeep_implied = 1;
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nselectors++;
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break;
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#endif
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case 'T':
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if ((optarg = ttyname(STDIN_FILENO)) == NULL)
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errx(1, "stdin: not a terminal");
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/* FALLTHROUGH */
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case 't':
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add_list(&ttylist, optarg);
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xkeep_implied = 1;
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nselectors++;
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break;
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case 'U':
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/* This is what SUSv3 defines as the `-u' option. */
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add_list(&uidlist, optarg);
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xkeep_implied = 1;
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nselectors++;
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break;
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case 'u':
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parsefmt(ufmt, 0);
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sortby = SORTCPU;
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_fmt = 1;
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ufmt[0] = '\0';
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break;
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case 'v':
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parsefmt(vfmt, 0);
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sortby = SORTMEM;
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_fmt = 1;
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vfmt[0] = '\0';
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break;
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case 'w':
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if (wflag)
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termwidth = UNLIMITED;
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else if (termwidth < 131)
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termwidth = 131;
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wflag++;
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break;
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case 'X':
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/*
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* Note that `-X' and `-x' are not standard "selector"
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* options. For most selector-options, we check *all*
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* processes to see if any are matched by the given
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* value(s). After we have a set of all the matched
|
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* processes, then `-X' and `-x' govern whether we
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* modify that *matched* set for processes which do
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* not have a controlling terminal. `-X' causes
|
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* those processes to be deleted from the matched
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* set, while `-x' causes them to be kept.
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*/
|
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xkeep = 0;
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break;
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case 'x':
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xkeep = 1;
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break;
|
|
case 'Z':
|
|
parsefmt(Zfmt, 0);
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Zfmt[0] = '\0';
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break;
|
|
case '?':
|
|
default:
|
|
usage();
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
/*
|
|
* 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();
|
|
}
|
|
if (optfatal)
|
|
exit(1); /* Error messages already printed. */
|
|
if (xkeep < 0) /* Neither -X nor -x was specified. */
|
|
xkeep = xkeep_implied;
|
|
|
|
|
|
/*
|
|
* 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) {
|
|
if (gidlist.count == 1) {
|
|
what = KERN_PROC_RGID | showthreads;
|
|
flag = *gidlist.l.gids;
|
|
nselectors = 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 = 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') {
|
|
warnx("Invalid (zero-length) process id");
|
|
optfatal = 1;
|
|
return (0); /* Do not add this value. */
|
|
} 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];
|
|
|
|
if (*argp == 0)
|
|
inf->addelem(inf, elemcopy);
|
|
|
|
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(const char *optlist, char *origval, const char *nextarg)
|
|
{
|
|
size_t len;
|
|
char *argp, *cp, *newopts, *ns, *optp, *pidp;
|
|
|
|
/*
|
|
* See if the original value includes any option which takes an
|
|
* argument (and will thus use up the remainder of the string).
|
|
*/
|
|
argp = NULL;
|
|
if (optlist != NULL) {
|
|
for (cp = origval; *cp != '\0'; cp++) {
|
|
optp = strchr(optlist, *cp);
|
|
if ((optp != NULL) && *(optp + 1) == ':') {
|
|
argp = cp;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (argp != NULL && *origval == '-')
|
|
return (origval);
|
|
|
|
/*
|
|
* 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 earlier
|
|
* in the option string (including a possible `t' flag), then the
|
|
* remainder of the string must be the argument to that flag; so
|
|
* do not modify that argument. Note that a trailing `t' would
|
|
* cause argp to be set, if argp was not already set by some
|
|
* earlier option.
|
|
*/
|
|
len = strlen(origval);
|
|
cp = origval + len - 1;
|
|
pidp = NULL;
|
|
if (*cp == 't' && *origval != '-' && cp == argp) {
|
|
if (nextarg == NULL || *nextarg == '-' || isdigitch(*nextarg))
|
|
*cp = 'T';
|
|
} else if (argp == NULL) {
|
|
/*
|
|
* The original value did not include any option which takes
|
|
* an argument (and that would include `p' and `t'), so check
|
|
* the value for trailing number, or comma-separated list of
|
|
* numbers, which we will treat as a pid request.
|
|
*/
|
|
if (isdigitch(*cp)) {
|
|
while (cp >= origval && (*cp == ',' || isdigitch(*cp)))
|
|
--cp;
|
|
pidp = cp + 1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* If nothing needs to be added to the string, then return
|
|
* the "original" (although possibly modified) value.
|
|
*/
|
|
if (*origval == '-' && pidp == NULL)
|
|
return (origval);
|
|
|
|
/*
|
|
* Create a copy of the string to add '-' and/or 'p' to the
|
|
* original value.
|
|
*/
|
|
if ((newopts = ns = malloc(len + 3)) == NULL)
|
|
errx(1, "malloc failed");
|
|
|
|
if (*origval != '-')
|
|
*ns++ = '-'; /* add option flag */
|
|
|
|
if (pidp == NULL)
|
|
strcpy(ns, origval);
|
|
else {
|
|
/*
|
|
* Copy everything before the pid string, add the `p',
|
|
* and then copy the pid string.
|
|
*/
|
|
len = pidp - origval;
|
|
memcpy(ns, origval, len);
|
|
ns += len;
|
|
*ns++ = 'p';
|
|
strcpy(ns, pidp);
|
|
}
|
|
|
|
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);
|
|
}
|