1131 lines
25 KiB
C
1131 lines
25 KiB
C
/* $OpenBSD: top.c,v 1.107 2022/09/10 16:58:51 cheloha Exp $ */
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/*
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* Top users/processes display for Unix
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* Version 3
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*
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* Copyright (c) 1984, 1989, William LeFebvre, Rice University
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* Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR HIS EMPLOYER BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <curses.h>
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#include <err.h>
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#include <errno.h>
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#include <stdio.h>
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#include <signal.h>
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#include <string.h>
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#include <poll.h>
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#include <pwd.h>
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#include <stdlib.h>
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#include <limits.h>
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#include <unistd.h>
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#include <stdbool.h>
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/* includes specific to top */
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#include "display.h" /* interface to display package */
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#include "screen.h" /* interface to screen package */
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#include "top.h"
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#include "top.local.h"
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#include "machine.h"
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#include "utils.h"
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/* Size of the stdio buffer given to stdout */
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#define BUFFERSIZE 2048
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/* The buffer that stdio will use */
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char stdoutbuf[BUFFERSIZE];
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/* signal handling routines */
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static void leave(int);
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static void onalrm(int);
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static void tstop(int);
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static void sigwinch(int);
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volatile sig_atomic_t leaveflag, tstopflag, winchflag;
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static void reset_display(void);
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int rundisplay(void);
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static int max_topn; /* maximum displayable processes */
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static int skip; /* how many processes to skip (scroll) */
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extern int ncpu;
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extern int ncpuonline;
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extern int (*proc_compares[])(const void *, const void *);
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int order_index;
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int rev_order;
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int displays = 0; /* indicates unspecified */
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int do_unames = true;
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struct process_select ps;
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int interactive = -1; /* indicates undefined */
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double delay = Default_DELAY;
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char *order_name = NULL;
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int topn = Default_TOPN;
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int no_command = true;
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int old_system = false;
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int old_threads = false;
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int show_args = false;
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pid_t hlpid = (pid_t)-1;
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int combine_cpus = 0;
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#if Default_TOPN == Infinity
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int topn_specified = false;
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#endif
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struct system_info system_info;
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struct statics statics;
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/*
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* these defines enumerate the "strchr"s of the commands in
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* command_chars
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*/
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#define CMD_redraw 0
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#define CMD_update 1
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#define CMD_quit 2
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#define CMD_help1 3
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#define CMD_help2 4
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#define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
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#define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
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#define CMD_number1 6
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#define CMD_number2 7
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#define CMD_delay 8
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#define CMD_displays 9
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#define CMD_kill 10
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#define CMD_renice 11
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#define CMD_idletog 12
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#define CMD_idletog2 13
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#define CMD_user 14
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#define CMD_system 15
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#define CMD_order 16
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#define CMD_pid 17
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#define CMD_command 18
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#define CMD_threads 19
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#define CMD_grep 20
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#define CMD_add 21
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#define CMD_hl 22
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#define CMD_cpus 23
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#define CMD_down 24
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#define CMD_up 25
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#define CMD_pagedown 26
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#define CMD_pageup 27
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#define CMD_grep2 28
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#define CMD_rtableid 29
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#define CMD_rtable 30
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static void
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usage(void)
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{
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extern char *__progname;
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fprintf(stderr,
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"usage: %s [-1bCHIinqStu] [-d count] [-g string] [-o [-]field] "
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"[-p pid] [-s time]\n\t[-T [-]rtable] [-U [-]user] [number]\n",
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__progname);
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}
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static int
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getorder(char *field)
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{
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int i, r = field[0] == '-';
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i = string_index(r ? field + 1 : field, statics.order_names);
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if (i != -1)
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rev_order = r;
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return i;
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}
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static int
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filteruser(char buf[])
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{
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const char *errstr;
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char *bufp = buf;
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uid_t *uidp;
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uid_t uid;
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if (bufp[0] == '-') {
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bufp++;
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uidp = &ps.huid;
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ps.uid = (pid_t)-1;
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} else {
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uidp = &ps.uid;
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ps.huid = (pid_t)-1;
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}
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if (uid_from_user(bufp, uidp) == 0)
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return 0;
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uid = strtonum(bufp, 0, UID_MAX, &errstr);
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if (errstr == NULL && user_from_uid(uid, 1) != NULL) {
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*uidp = uid;
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return 0;
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}
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return -1;
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}
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static int
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filterpid(char buf[], int hl)
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{
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const char *errstr;
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int pid;
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pid = strtonum(buf, 0, INT_MAX, &errstr);
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if (errstr != NULL || !find_pid(pid))
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return -1;
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if (hl)
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hlpid = (pid_t)pid;
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else {
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if (!ps.system)
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old_system = false;
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ps.pid = (pid_t)pid;
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ps.system = true;
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}
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return 0;
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}
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static int
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filterrtable(char buf[])
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{
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const char *errstr;
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char *bufp = buf;
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uint32_t *rtableidp;
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uint32_t rtableid;
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if (bufp[0] == '-') {
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bufp++;
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rtableidp = &ps.hrtableid;
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ps.rtableid = -1;
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} else {
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rtableidp = &ps.rtableid;
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ps.hrtableid = -1;
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}
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rtableid = strtonum(bufp, 0, RT_TABLEID_MAX, &errstr);
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if (errstr == NULL) {
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*rtableidp = rtableid;
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return 0;
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}
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return -1;
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}
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static void
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parseargs(int ac, char **av)
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{
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char *endp;
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int i;
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while ((i = getopt(ac, av, "1SHICbinqus:d:p:U:o:g:T:t")) != -1) {
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switch (i) {
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case '1':
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combine_cpus = 1;
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break;
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case 'C':
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show_args = true;
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break;
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case 'u': /* toggle uid/username display */
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do_unames = !do_unames;
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break;
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case 'U': /* display only username's processes */
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if (filteruser(optarg) == -1)
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new_message(MT_delayed, "%s: unknown user",
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optarg);
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break;
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case 'p': /* display only process id */
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if (filterpid(optarg, false) == -1)
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new_message(MT_delayed, "%s: unknown pid",
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optarg);
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break;
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case 'S': /* show system processes */
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ps.system = !ps.system;
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old_system = !old_system;
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break;
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case 'H': /* show threads */
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ps.threads = true;
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old_threads = true;
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break;
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case 'I': /* show idle processes */
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ps.idle = !ps.idle;
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break;
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case 'i': /* go interactive regardless */
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interactive = true;
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break;
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case 'n': /* batch, or non-interactive */
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case 'b':
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interactive = false;
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break;
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case 'd': /* number of displays to show */
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if ((i = atoiwi(optarg)) != Invalid && i != 0) {
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displays = i;
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if (displays == 1)
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interactive = false;
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break;
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}
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new_message(MT_delayed,
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"warning: display count should be positive "
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"-- option ignored");
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break;
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case 's':
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delay = strtod(optarg, &endp);
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if (delay >= 0 && delay <= 1000000 && *endp == '\0')
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break;
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new_message(MT_delayed,
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"warning: delay should be a non-negative number"
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" -- using default");
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delay = Default_DELAY;
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break;
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case 'q': /* be quick about it */
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/* only allow this if user is really root */
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if (getuid() == 0) {
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/* be very un-nice! */
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(void) nice(-20);
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break;
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}
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new_message(MT_delayed,
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"warning: `-q' option can only be used by root");
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break;
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case 'o': /* select sort order */
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order_name = optarg;
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break;
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case 'g': /* grep command name */
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free(ps.command);
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if ((ps.command = strdup(optarg)) == NULL)
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err(1, NULL);
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break;
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case 'T':
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if (filterrtable(optarg) == -1)
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new_message(MT_delayed,
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"%s: invalid routing table", optarg);
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break;
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case 't':
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ps.rtable = true;
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break;
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default:
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usage();
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exit(1);
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}
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}
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i = getncpuonline();
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if (i == -1)
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err(1, NULL);
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if (i > 8)
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combine_cpus = 1;
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/* get count of top processes to display (if any) */
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if (optind < ac) {
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if ((topn = atoiwi(av[optind])) == Invalid) {
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new_message(MT_delayed,
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"warning: process count should "
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"be a non-negative number -- using default");
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topn = Infinity;
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}
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#if Default_TOPN == Infinity
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else
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topn_specified = true;
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#endif
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}
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}
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int
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main(int argc, char *argv[])
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{
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char *header_text, *env_top;
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char *uname_field = "USERNAME", *thread_field = " TID";
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char *wait_field = "WAIT ", *rtable_field = " RTABLE";
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const char *(*get_userid)(uid_t, int) = user_from_uid;
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char **preset_argv = NULL, **av = argv;
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int preset_argc = 0, ac = argc, active_procs, i, ncpuonline_now;
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sigset_t mask, oldmask;
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time_t curr_time;
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struct handle *processes;
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/* set the buffer for stdout */
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#ifdef DEBUG
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setvbuf(stdout, NULL, _IONBUF, 0);
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#else
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setvbuf(stdout, stdoutbuf, _IOFBF, sizeof stdoutbuf);
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#endif
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/* initialize some selection options */
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ps.idle = true;
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ps.system = false;
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ps.uid = (uid_t)-1;
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ps.huid = (uid_t)-1;
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ps.pid = (pid_t)-1;
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ps.rtable = false;
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ps.rtableid = -1;
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ps.hrtableid = -1;
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ps.command = NULL;
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/* get preset options from the environment */
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if ((env_top = getenv("TOP")) != NULL) {
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av = preset_argv = argparse(env_top, &preset_argc);
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ac = preset_argc;
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/*
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* set the dummy argument to an explanatory message, in case
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* getopt encounters a bad argument
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*/
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preset_argv[0] = "while processing environment";
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}
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/* process options */
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do {
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/*
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* if we're done doing the presets, then process the real
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* arguments
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*/
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if (preset_argc == 0) {
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ac = argc;
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av = argv;
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optind = 1;
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}
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parseargs(ac, av);
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i = preset_argc;
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preset_argc = 0;
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} while (i != 0);
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if (pledge("stdio rpath getpw tty proc ps vminfo", NULL) == -1)
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err(1, "pledge");
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/* set constants for username/uid display correctly */
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if (!do_unames) {
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uname_field = " UID ";
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get_userid = format_uid;
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}
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/* initialize the kernel memory interface */
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if (machine_init(&statics) == -1)
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exit(1);
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/* determine sorting order index, if necessary */
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if (order_name != NULL) {
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if ((order_index = getorder(order_name)) == -1) {
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new_message(MT_delayed,
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" %s: unrecognized sorting order", order_name);
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order_index = 0;
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}
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}
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/* initialize termcap */
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init_termcap(interactive);
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/* initialize display interface */
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max_topn = display_init(&statics);
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/* print warning if user requested more processes than we can display */
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if (topn > max_topn)
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new_message(MT_delayed,
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"warning: this terminal can only display %d processes",
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max_topn);
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/* adjust for topn == Infinity */
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if (topn == Infinity) {
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/*
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* For smart terminals, infinity really means everything that can
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* be displayed, or Largest.
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* On dumb terminals, infinity means every process in the system!
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* We only really want to do that if it was explicitly specified.
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* This is always the case when "Default_TOPN != Infinity". But if
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* topn wasn't explicitly specified and we are on a dumb terminal
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* and the default is Infinity, then (and only then) we use
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* "Nominal_TOPN" instead.
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*/
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#if Default_TOPN == Infinity
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topn = smart_terminal ? Largest :
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(topn_specified ? Largest : Nominal_TOPN);
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#else
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topn = Largest;
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#endif
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}
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/* set header display accordingly */
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display_header(topn > 0);
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/* determine interactive state */
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if (interactive == -1)
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interactive = smart_terminal;
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/* if # of displays not specified, fill it in */
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if (displays == 0)
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displays = smart_terminal ? Infinity : 1;
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/*
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* block interrupt signals while setting up the screen and the
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* handlers
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*/
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sigemptyset(&mask);
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sigaddset(&mask, SIGINT);
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sigaddset(&mask, SIGQUIT);
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sigaddset(&mask, SIGTSTP);
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sigprocmask(SIG_BLOCK, &mask, &oldmask);
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if (interactive)
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init_screen();
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if (pledge("stdio getpw tty proc ps vminfo", NULL) == -1)
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err(1, "pledge");
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(void) signal(SIGINT, leave);
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siginterrupt(SIGINT, 1);
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(void) signal(SIGQUIT, leave);
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(void) signal(SIGTSTP, tstop);
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if (smart_terminal)
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(void) signal(SIGWINCH, sigwinch);
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sigprocmask(SIG_SETMASK, &oldmask, NULL);
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restart:
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/*
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* main loop -- repeat while display count is positive or while it
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* indicates infinity (by being -1)
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*/
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while ((displays == -1) || (displays-- > 0)) {
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if (winchflag) {
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/*
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* reascertain the screen
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* dimensions
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*/
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get_screensize();
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resizeterm(screen_length, screen_width + 1);
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/* tell display to resize */
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max_topn = display_resize();
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/* reset the signal handler */
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(void) signal(SIGWINCH, sigwinch);
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reset_display();
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winchflag = 0;
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}
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/* get the current stats */
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get_system_info(&system_info);
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/*
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* don't display stats for offline CPUs: resize if we're
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* interactive and CPUs have toggled on or offline
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*/
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if (interactive && !combine_cpus) {
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for (i = ncpuonline_now = 0; i < ncpu; i++)
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if (system_info.cpuonline[i])
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ncpuonline_now++;
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if (ncpuonline_now != ncpuonline) {
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max_topn = display_resize();
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reset_display();
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continue;
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}
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}
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/* get the current set of processes */
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processes = get_process_info(&system_info, &ps,
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proc_compares[order_index]);
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|
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/* display the load averages */
|
|
i_loadave(system_info.load_avg);
|
|
|
|
/* display the current time */
|
|
/* this method of getting the time SHOULD be fairly portable */
|
|
time(&curr_time);
|
|
i_timeofday(&curr_time);
|
|
|
|
/* display process/threads state breakdown */
|
|
i_procstates(system_info.p_total, system_info.procstates,
|
|
ps.threads);
|
|
|
|
/* display the cpu state percentage breakdown */
|
|
i_cpustates(system_info.cpustates, system_info.cpuonline);
|
|
|
|
/* display memory stats */
|
|
i_memory(system_info.memory);
|
|
|
|
/* handle message area */
|
|
i_message();
|
|
|
|
/* get the string to use for the process area header */
|
|
header_text = format_header(
|
|
ps.threads ? thread_field : uname_field,
|
|
ps.rtable ? rtable_field : wait_field);
|
|
|
|
/* update the header area */
|
|
i_header(header_text);
|
|
|
|
if (topn == Infinity) {
|
|
#if Default_TOPN == Infinity
|
|
topn = smart_terminal ? Largest :
|
|
(topn_specified ? Largest : Nominal_TOPN);
|
|
#else
|
|
topn = Largest;
|
|
#endif
|
|
}
|
|
|
|
if (topn > 0) {
|
|
/* determine number of processes to actually display */
|
|
/*
|
|
* this number will be the smallest of: active
|
|
* processes, number user requested, number current
|
|
* screen accommodates
|
|
*/
|
|
active_procs = system_info.p_active;
|
|
if (active_procs > topn)
|
|
active_procs = topn;
|
|
if (active_procs > max_topn)
|
|
active_procs = max_topn;
|
|
/* determine how many process to skip, if asked to */
|
|
/*
|
|
* this number is tweaked by user, but gets shrinked
|
|
* when number of active processes lowers too much
|
|
*/
|
|
if (skip + active_procs > system_info.p_active)
|
|
skip = system_info.p_active - active_procs;
|
|
skip_processes(processes, skip);
|
|
/* now show the top "n" processes. */
|
|
for (i = 0; i < active_procs; i++) {
|
|
pid_t pid;
|
|
char * s;
|
|
|
|
s = format_next_process(processes,
|
|
ps.threads ? NULL : get_userid, ps.rtable,
|
|
&pid);
|
|
i_process(i, s, pid == hlpid);
|
|
}
|
|
}
|
|
|
|
/* do end-screen processing */
|
|
u_endscreen();
|
|
|
|
/* now, flush the output buffer */
|
|
fflush(stdout);
|
|
|
|
if (smart_terminal)
|
|
refresh();
|
|
|
|
/* only do the rest if we have more displays to show */
|
|
if (displays) {
|
|
/* switch out for new display on smart terminals */
|
|
no_command = true;
|
|
if (!interactive) {
|
|
/* set up alarm */
|
|
(void) signal(SIGALRM, onalrm);
|
|
(void) alarm((unsigned) delay);
|
|
|
|
/* wait for the rest of it .... */
|
|
pause();
|
|
if (leaveflag)
|
|
exit(0);
|
|
if (tstopflag) {
|
|
(void) signal(SIGTSTP, SIG_DFL);
|
|
(void) kill(0, SIGTSTP);
|
|
/* reset the signal handler */
|
|
(void) signal(SIGTSTP, tstop);
|
|
tstopflag = 0;
|
|
}
|
|
} else {
|
|
while (no_command)
|
|
if (rundisplay())
|
|
goto restart;
|
|
}
|
|
}
|
|
}
|
|
|
|
quit(0);
|
|
/* NOTREACHED */
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
rundisplay(void)
|
|
{
|
|
static char tempbuf[TEMPBUFSIZE];
|
|
sigset_t mask;
|
|
char ch, *iptr;
|
|
int change, i;
|
|
struct pollfd pfd[1];
|
|
static char command_chars[] = "\f qh?en#sdkriIuSopCHg+P109)(/Tt";
|
|
|
|
/*
|
|
* assume valid command unless told
|
|
* otherwise
|
|
*/
|
|
no_command = false;
|
|
|
|
/*
|
|
* set up arguments for select with
|
|
* timeout
|
|
*/
|
|
pfd[0].fd = STDIN_FILENO;
|
|
pfd[0].events = POLLIN;
|
|
|
|
if (leaveflag)
|
|
quit(0);
|
|
if (tstopflag) {
|
|
/* move to the lower left */
|
|
end_screen();
|
|
fflush(stdout);
|
|
|
|
/*
|
|
* default the signal handler
|
|
* action
|
|
*/
|
|
(void) signal(SIGTSTP, SIG_DFL);
|
|
|
|
/*
|
|
* unblock the signal and
|
|
* send ourselves one
|
|
*/
|
|
sigemptyset(&mask);
|
|
sigaddset(&mask, SIGTSTP);
|
|
sigprocmask(SIG_UNBLOCK, &mask, NULL);
|
|
(void) kill(0, SIGTSTP);
|
|
|
|
/* reset the signal handler */
|
|
(void) signal(SIGTSTP, tstop);
|
|
|
|
/* reinit screen */
|
|
reinit_screen();
|
|
reset_display();
|
|
tstopflag = 0;
|
|
return 1;
|
|
}
|
|
/*
|
|
* wait for either input or the end
|
|
* of the delay period
|
|
*/
|
|
if (poll(pfd, 1, (int)(delay * 1000)) > 0) {
|
|
char *errmsg;
|
|
ssize_t len;
|
|
|
|
if ((pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL)))
|
|
exit(1);
|
|
|
|
clear_message();
|
|
|
|
/*
|
|
* now read it and convert to
|
|
* command strchr
|
|
*/
|
|
while (1) {
|
|
len = read(STDIN_FILENO, &ch, 1);
|
|
if (len == -1 && errno == EINTR)
|
|
continue;
|
|
if (len == 0)
|
|
exit(1);
|
|
break;
|
|
}
|
|
if ((iptr = strchr(command_chars, ch)) == NULL) {
|
|
/* illegal command */
|
|
new_message(MT_standout, " Command not understood");
|
|
putr();
|
|
no_command = true;
|
|
fflush(stdout);
|
|
return (0);
|
|
}
|
|
|
|
change = iptr - command_chars;
|
|
|
|
switch (change) {
|
|
case CMD_redraw: /* redraw screen */
|
|
reset_display();
|
|
break;
|
|
|
|
case CMD_update: /* merely update display */
|
|
/*
|
|
* is the load average high?
|
|
*/
|
|
if (system_info.load_avg[0] > LoadMax) {
|
|
/* yes, go home for visual feedback */
|
|
go_home();
|
|
fflush(stdout);
|
|
}
|
|
break;
|
|
|
|
case CMD_quit: /* quit */
|
|
quit(0);
|
|
break;
|
|
|
|
case CMD_help1: /* help */
|
|
case CMD_help2:
|
|
clear();
|
|
show_help();
|
|
anykey();
|
|
clear();
|
|
break;
|
|
|
|
case CMD_errors: /* show errors */
|
|
if (error_count() == 0) {
|
|
new_message(MT_standout,
|
|
" Currently no errors to report.");
|
|
putr();
|
|
no_command = true;
|
|
} else {
|
|
clear();
|
|
show_errors();
|
|
anykey();
|
|
clear();
|
|
}
|
|
break;
|
|
|
|
case CMD_number1: /* new number */
|
|
case CMD_number2:
|
|
new_message(MT_standout,
|
|
"Number of processes to show: ");
|
|
|
|
if (readline(tempbuf, 8) > 0) {
|
|
if ((i = atoiwi(tempbuf)) != Invalid) {
|
|
if (i > max_topn) {
|
|
new_message(MT_standout |
|
|
MT_delayed,
|
|
" This terminal can only "
|
|
"display %d processes.",
|
|
max_topn);
|
|
putr();
|
|
}
|
|
if ((i > topn || i == Infinity)
|
|
&& topn == 0) {
|
|
/* redraw the header */
|
|
display_header(true);
|
|
} else if (i == 0)
|
|
display_header(false);
|
|
topn = i;
|
|
} else {
|
|
new_message(MT_standout,
|
|
"Processes should be a "
|
|
"non-negative number");
|
|
putr();
|
|
no_command = true;
|
|
}
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_delay: /* new seconds delay */
|
|
new_message(MT_standout, "Seconds to delay: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
char *endp;
|
|
double newdelay = strtod(tempbuf, &endp);
|
|
|
|
if (newdelay >= 0 && newdelay <= 1000000 &&
|
|
*endp == '\0') {
|
|
delay = newdelay;
|
|
} else {
|
|
new_message(MT_standout,
|
|
"Delay should be a non-negative number");
|
|
putr();
|
|
no_command = true;
|
|
}
|
|
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_displays: /* change display count */
|
|
new_message(MT_standout,
|
|
"Displays to show (currently %s): ",
|
|
displays == -1 ? "infinite" :
|
|
itoa(displays));
|
|
|
|
if (readline(tempbuf, 10) > 0) {
|
|
if ((i = atoiwi(tempbuf)) != Invalid) {
|
|
if (i == 0)
|
|
quit(0);
|
|
displays = i;
|
|
} else {
|
|
new_message(MT_standout,
|
|
"Displays should be a non-negative number");
|
|
putr();
|
|
no_command = true;
|
|
}
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_kill: /* kill program */
|
|
new_message(0, "kill ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if ((errmsg = kill_procs(tempbuf)) != NULL) {
|
|
new_message(MT_standout, "%s", errmsg);
|
|
putr();
|
|
no_command = true;
|
|
}
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_renice: /* renice program */
|
|
new_message(0, "renice ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if ((errmsg = renice_procs(tempbuf)) != NULL) {
|
|
new_message(MT_standout, "%s", errmsg);
|
|
putr();
|
|
no_command = true;
|
|
}
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_idletog:
|
|
case CMD_idletog2:
|
|
ps.idle = !ps.idle;
|
|
new_message(MT_standout | MT_delayed,
|
|
" %sisplaying idle processes.",
|
|
ps.idle ? "D" : "Not d");
|
|
putr();
|
|
break;
|
|
|
|
case CMD_user:
|
|
new_message(MT_standout,
|
|
"Username to show: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if ((tempbuf[0] == '+' || tempbuf[0] == '-') &&
|
|
tempbuf[1] == '\0') {
|
|
ps.uid = (uid_t)-1;
|
|
ps.huid = (uid_t)-1;
|
|
} else if (filteruser(tempbuf) == -1) {
|
|
new_message(MT_standout,
|
|
" %s: unknown user",
|
|
tempbuf[0] == '-' ? tempbuf + 1 :
|
|
tempbuf);
|
|
no_command = true;
|
|
}
|
|
putr();
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_system:
|
|
ps.system = !ps.system;
|
|
old_system = ps.system;
|
|
new_message(MT_standout | MT_delayed,
|
|
" %sisplaying system processes.",
|
|
ps.system ? "D" : "Not d");
|
|
break;
|
|
|
|
case CMD_order:
|
|
new_message(MT_standout,
|
|
"Order to sort: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if ((i = getorder(tempbuf)) == -1) {
|
|
new_message(MT_standout,
|
|
" %s: unrecognized sorting order",
|
|
tempbuf[0] == '-' ? tempbuf + 1 :
|
|
tempbuf);
|
|
no_command = true;
|
|
} else
|
|
order_index = i;
|
|
putr();
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_pid:
|
|
new_message(MT_standout, "Process ID to show: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if (tempbuf[0] == '+' &&
|
|
tempbuf[1] == '\0') {
|
|
ps.pid = (pid_t)-1;
|
|
ps.system = old_system;
|
|
} else if (filterpid(tempbuf, 0) == -1) {
|
|
new_message(MT_standout,
|
|
" %s: unknown pid", tempbuf);
|
|
no_command = true;
|
|
}
|
|
putr();
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_command:
|
|
show_args = !show_args;
|
|
break;
|
|
|
|
case CMD_threads:
|
|
ps.threads = !ps.threads;
|
|
old_threads = ps.threads;
|
|
new_message(MT_standout | MT_delayed,
|
|
" %sisplaying threads.",
|
|
ps.threads ? "D" : "Not d");
|
|
break;
|
|
|
|
case CMD_grep:
|
|
case CMD_grep2:
|
|
new_message(MT_standout,
|
|
"Grep command name: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
free(ps.command);
|
|
if (tempbuf[0] == '+' &&
|
|
tempbuf[1] == '\0')
|
|
ps.command = NULL;
|
|
else if ((ps.command = strdup(tempbuf)) == NULL)
|
|
err(1, NULL);
|
|
putr();
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_hl:
|
|
new_message(MT_standout, "Process ID to highlight: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if (tempbuf[0] == '+' &&
|
|
tempbuf[1] == '\0') {
|
|
hlpid = (pid_t)-1;
|
|
} else if (filterpid(tempbuf, true) == -1) {
|
|
new_message(MT_standout,
|
|
" %s: unknown pid", tempbuf);
|
|
no_command = true;
|
|
}
|
|
putr();
|
|
} else
|
|
clear_message();
|
|
break;
|
|
|
|
case CMD_add:
|
|
ps.uid = (uid_t)-1; /* uid */
|
|
ps.huid = (uid_t)-1;
|
|
ps.pid = (pid_t)-1; /* pid */
|
|
ps.rtableid = -1; /* rtableid */
|
|
ps.hrtableid = -1;
|
|
ps.system = old_system;
|
|
ps.command = NULL; /* grep */
|
|
hlpid = (pid_t)-1;
|
|
break;
|
|
case CMD_cpus:
|
|
combine_cpus = !combine_cpus;
|
|
max_topn = display_resize();
|
|
reset_display();
|
|
break;
|
|
case CMD_down:
|
|
skip++;
|
|
break;
|
|
case CMD_up:
|
|
if (skip > 0)
|
|
skip--;
|
|
break;
|
|
case CMD_pagedown:
|
|
skip += max_topn / 2;
|
|
break;
|
|
case CMD_pageup:
|
|
skip -= max_topn / 2;
|
|
if (skip < 0)
|
|
skip = 0;
|
|
break;
|
|
case CMD_rtableid:
|
|
new_message(MT_standout,
|
|
"Routing table: ");
|
|
if (readline(tempbuf, sizeof(tempbuf)) > 0) {
|
|
if (tempbuf[0] == '+' && tempbuf[1] == '\0') {
|
|
ps.rtableid = -1;
|
|
ps.hrtableid = -1;
|
|
} else if (filterrtable(tempbuf) == -1) {
|
|
new_message(MT_standout,
|
|
" %s: invalid routing table",
|
|
tempbuf[0] == '-' ? tempbuf + 1 :
|
|
tempbuf);
|
|
no_command = true;
|
|
}
|
|
putr();
|
|
} else
|
|
clear_message();
|
|
break;
|
|
case CMD_rtable:
|
|
ps.rtable = !ps.rtable;
|
|
new_message(MT_standout | MT_delayed,
|
|
" %sisplaying routing tables.",
|
|
ps.rtable ? "D" : "Not d");
|
|
break;
|
|
default:
|
|
new_message(MT_standout, " BAD CASE IN SWITCH!");
|
|
putr();
|
|
}
|
|
}
|
|
|
|
/* flush out stuff that may have been written */
|
|
fflush(stdout);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*
|
|
* reset_display() - reset all the display routine pointers so that entire
|
|
* screen will get redrawn.
|
|
*/
|
|
static void
|
|
reset_display(void)
|
|
{
|
|
if (smart_terminal) {
|
|
clear();
|
|
refresh();
|
|
}
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
leave(int signo)
|
|
{
|
|
leaveflag = 1;
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
tstop(int signo)
|
|
{
|
|
tstopflag = 1;
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
sigwinch(int signo)
|
|
{
|
|
winchflag = 1;
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
onalrm(int signo)
|
|
{
|
|
}
|
|
|
|
void
|
|
quit(int ret)
|
|
{
|
|
end_screen();
|
|
exit(ret);
|
|
}
|