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1.95 ! kn 1: /* $OpenBSD: top.c,v 1.94 2018/10/05 18:56:57 cheloha Exp $ */
1.1 downsj 2:
3: /*
4: * Top users/processes display for Unix
5: * Version 3
6: *
1.18 deraadt 7: * Copyright (c) 1984, 1989, William LeFebvre, Rice University
8: * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
1.1 downsj 9: *
1.18 deraadt 10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22: * IN NO EVENT SHALL THE AUTHOR OR HIS EMPLOYER BE LIABLE FOR ANY DIRECT, INDIRECT,
23: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 downsj 29: */
30:
1.2 downsj 31: #include <sys/types.h>
1.51 otto 32: #include <curses.h>
1.23 millert 33: #include <err.h>
34: #include <errno.h>
1.2 downsj 35: #include <stdio.h>
1.1 downsj 36: #include <signal.h>
1.2 downsj 37: #include <string.h>
1.28 deraadt 38: #include <poll.h>
1.92 millert 39: #include <pwd.h>
1.2 downsj 40: #include <stdlib.h>
1.35 otto 41: #include <limits.h>
1.2 downsj 42: #include <unistd.h>
1.1 downsj 43:
44: /* includes specific to top */
45: #include "display.h" /* interface to display package */
46: #include "screen.h" /* interface to screen package */
47: #include "top.h"
48: #include "top.local.h"
49: #include "boolean.h"
50: #include "machine.h"
51: #include "utils.h"
52:
53: /* Size of the stdio buffer given to stdout */
1.20 deraadt 54: #define BUFFERSIZE 2048
1.1 downsj 55:
56: /* The buffer that stdio will use */
1.32 deraadt 57: char stdoutbuf[BUFFERSIZE];
1.1 downsj 58:
59: /* signal handling routines */
1.32 deraadt 60: static void leave(int);
61: static void onalrm(int);
62: static void tstop(int);
1.51 otto 63: static void sigwinch(int);
1.1 downsj 64:
1.25 deraadt 65: volatile sig_atomic_t leaveflag, tstopflag, winchflag;
1.7 deraadt 66:
1.32 deraadt 67: static void reset_display(void);
1.20 deraadt 68: int rundisplay(void);
1.1 downsj 69:
1.32 deraadt 70: static int max_topn; /* maximum displayable processes */
1.1 downsj 71:
1.32 deraadt 72: extern int (*proc_compares[])(const void *, const void *);
1.20 deraadt 73: int order_index;
1.1 downsj 74:
1.20 deraadt 75: int displays = 0; /* indicates unspecified */
76: char do_unames = Yes;
77: struct process_select ps;
78: char interactive = Maybe;
79: double delay = Default_DELAY;
80: char *order_name = NULL;
81: int topn = Default_TOPN;
1.24 deraadt 82: int no_command = Yes;
1.35 otto 83: int old_system = No;
1.41 tedu 84: int old_threads = No;
1.40 markus 85: int show_args = No;
1.95 ! kn 86: pid_t hlpid = (pid_t)-1;
1.68 tedu 87: int combine_cpus = 0;
1.1 downsj 88:
89: #if Default_TOPN == Infinity
1.20 deraadt 90: char topn_specified = No;
1.1 downsj 91: #endif
92:
1.20 deraadt 93: /*
94: * these defines enumerate the "strchr"s of the commands in
95: * command_chars
96: */
1.1 downsj 97: #define CMD_redraw 0
98: #define CMD_update 1
99: #define CMD_quit 2
100: #define CMD_help1 3
101: #define CMD_help2 4
1.20 deraadt 102: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
103: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 104: #define CMD_number1 6
105: #define CMD_number2 7
106: #define CMD_delay 8
107: #define CMD_displays 9
108: #define CMD_kill 10
109: #define CMD_renice 11
1.32 deraadt 110: #define CMD_idletog 12
111: #define CMD_idletog2 13
1.1 downsj 112: #define CMD_user 14
1.12 fgsch 113: #define CMD_system 15
1.32 deraadt 114: #define CMD_order 16
1.35 otto 115: #define CMD_pid 17
1.40 markus 116: #define CMD_command 18
1.41 tedu 117: #define CMD_threads 19
1.45 otto 118: #define CMD_grep 20
1.47 otto 119: #define CMD_add 21
1.51 otto 120: #define CMD_hl 22
1.68 tedu 121: #define CMD_cpus 23
1.1 downsj 122:
1.27 deraadt 123: static void
1.20 deraadt 124: usage(void)
125: {
1.22 deraadt 126: extern char *__progname;
127:
1.20 deraadt 128: fprintf(stderr,
1.76 jsing 129: "usage: %s [-1bCHIinqSu] [-d count] [-g string] [-o field] "
1.78 brynet 130: "[-p pid] [-s time]\n\t[-U [-]user] [number]\n",
1.22 deraadt 131: __progname);
1.20 deraadt 132: }
133:
1.95 ! kn 134: static int
! 135: filteruser(char buf[])
! 136: {
! 137: char *bufp = buf;
! 138: uid_t *uidp;
! 139:
! 140: if (bufp[0] == '-') {
! 141: bufp++;
! 142: uidp = &ps.huid;
! 143: ps.uid = (pid_t)-1;
! 144: } else {
! 145: uidp = &ps.uid;
! 146: ps.huid = (pid_t)-1;
! 147: }
! 148:
! 149: return uid_from_user(bufp, uidp);
! 150: }
! 151:
! 152: static int
! 153: filterpid(char buf[], int hl)
! 154: {
! 155: const char *errstr;
! 156: int pid;
! 157:
! 158: pid = strtonum(buf, 0, INT_MAX, &errstr);
! 159: if (errstr != NULL || !find_pid(pid))
! 160: return -1;
! 161:
! 162: if (hl == Yes)
! 163: hlpid = (pid_t)pid;
! 164: else {
! 165: if (ps.system == No)
! 166: old_system = No;
! 167: ps.pid = (pid_t)pid;
! 168: ps.system = Yes;
! 169: }
! 170:
! 171: return 0;
! 172: }
! 173:
1.27 deraadt 174: static void
1.20 deraadt 175: parseargs(int ac, char **av)
176: {
177: char *endp;
178: int i;
179:
1.76 jsing 180: while ((i = getopt(ac, av, "1SHICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 181: switch (i) {
1.68 tedu 182: case '1':
183: combine_cpus = 1;
184: break;
1.44 otto 185: case 'C':
186: show_args = Yes;
187: break;
1.20 deraadt 188: case 'u': /* toggle uid/username display */
189: do_unames = !do_unames;
190: break;
191:
192: case 'U': /* display only username's processes */
1.95 ! kn 193: if (filteruser(optarg) == -1)
1.61 otto 194: new_message(MT_delayed, "%s: unknown user",
195: optarg);
1.20 deraadt 196: break;
1.1 downsj 197:
1.95 ! kn 198: case 'p': /* display only process id */
! 199: if (filterpid(optarg, No) == -1)
1.61 otto 200: new_message(MT_delayed, "%s: unknown pid",
201: optarg);
1.35 otto 202: break;
203:
1.20 deraadt 204: case 'S': /* show system processes */
1.67 jmc 205: ps.system = !ps.system;
206: old_system = !old_system;
1.20 deraadt 207: break;
208:
1.76 jsing 209: case 'H': /* show threads */
1.41 tedu 210: ps.threads = Yes;
211: old_threads = Yes;
212: break;
213:
1.20 deraadt 214: case 'I': /* show idle processes */
215: ps.idle = !ps.idle;
216: break;
217:
218: case 'i': /* go interactive regardless */
219: interactive = Yes;
220: break;
221:
222: case 'n': /* batch, or non-interactive */
223: case 'b':
224: interactive = No;
225: break;
226:
227: case 'd': /* number of displays to show */
228: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
229: displays = i;
1.66 sthen 230: if (displays == 1)
231: interactive = No;
1.20 deraadt 232: break;
1.32 deraadt 233: }
1.60 otto 234: new_message(MT_delayed,
235: "warning: display count should be positive "
1.22 deraadt 236: "-- option ignored");
1.20 deraadt 237: break;
238:
239: case 's':
240: delay = strtod(optarg, &endp);
241:
1.59 otto 242: if (delay >= 0 && delay <= 1000000 && *endp == '\0')
1.20 deraadt 243: break;
244:
1.60 otto 245: new_message(MT_delayed,
246: "warning: delay should be a non-negative number"
1.22 deraadt 247: " -- using default");
1.20 deraadt 248: delay = Default_DELAY;
249: break;
250:
251: case 'q': /* be quick about it */
252: /* only allow this if user is really root */
253: if (getuid() == 0) {
254: /* be very un-nice! */
255: (void) nice(-20);
256: break;
257: }
1.60 otto 258: new_message(MT_delayed,
259: "warning: `-q' option can only be used by root");
1.20 deraadt 260: break;
261:
262: case 'o': /* select sort order */
263: order_name = optarg;
264: break;
265:
1.45 otto 266: case 'g': /* grep command name */
1.74 lum 267: free(ps.command);
1.75 deraadt 268: if ((ps.command = strdup(optarg)) == NULL)
1.74 lum 269: err(1, NULL);
1.45 otto 270: break;
271:
1.20 deraadt 272: default:
273: usage();
274: exit(1);
1.1 downsj 275: }
1.20 deraadt 276: }
1.82 dlg 277:
1.94 cheloha 278: i = getncpu();
1.82 dlg 279: if (i == -1)
280: err(1, NULL);
281:
282: if (i > 8)
283: combine_cpus = 1;
1.1 downsj 284:
1.20 deraadt 285: /* get count of top processes to display (if any) */
286: if (optind < ac) {
287: if ((topn = atoiwi(av[optind])) == Invalid) {
1.60 otto 288: new_message(MT_delayed,
289: "warning: process count should "
1.49 otto 290: "be a non-negative number -- using default");
1.46 otto 291: topn = Infinity;
1.1 downsj 292: }
1.20 deraadt 293: #if Default_TOPN == Infinity
1.1 downsj 294: else
1.20 deraadt 295: topn_specified = Yes;
296: #endif
297: }
298: }
1.1 downsj 299:
1.20 deraadt 300: struct system_info system_info;
301: struct statics statics;
1.1 downsj 302:
1.20 deraadt 303: int
304: main(int argc, char *argv[])
305: {
306: char *uname_field = "USERNAME", *header_text, *env_top;
1.92 millert 307: const char *(*get_userid)(uid_t, int) = user_from_uid;
1.77 pirofti 308: char **preset_argv = NULL, **av = argv;
309: int preset_argc = 0, ac = argc, active_procs, i;
1.20 deraadt 310: sigset_t mask, oldmask;
311: time_t curr_time;
312: caddr_t processes;
1.1 downsj 313:
1.20 deraadt 314: /* set the buffer for stdout */
315: #ifdef DEBUG
1.87 tedu 316: setvbuf(stdout, NULL, _IONBUF, 0);
1.1 downsj 317: #else
1.87 tedu 318: setvbuf(stdout, stdoutbuf, _IOFBF, sizeof stdoutbuf);
1.1 downsj 319: #endif
320:
1.20 deraadt 321: /* initialize some selection options */
322: ps.idle = Yes;
323: ps.system = No;
1.21 millert 324: ps.uid = (uid_t)-1;
1.78 brynet 325: ps.huid = (uid_t)-1;
1.35 otto 326: ps.pid = (pid_t)-1;
1.20 deraadt 327: ps.command = NULL;
328:
329: /* get preset options from the environment */
330: if ((env_top = getenv("TOP")) != NULL) {
331: av = preset_argv = argparse(env_top, &preset_argc);
332: ac = preset_argc;
333:
334: /*
335: * set the dummy argument to an explanatory message, in case
336: * getopt encounters a bad argument
337: */
338: preset_argv[0] = "while processing environment";
339: }
340: /* process options */
341: do {
342: /*
343: * if we're done doing the presets, then process the real
344: * arguments
345: */
346: if (preset_argc == 0) {
347: ac = argc;
348: av = argv;
349: optind = 1;
350: }
351: parseargs(ac, av);
352: i = preset_argc;
353: preset_argc = 0;
354: } while (i != 0);
1.84 deraadt 355:
1.88 espie 356: if (pledge("stdio rpath getpw tty proc ps vminfo", NULL) == -1)
1.84 deraadt 357: err(1, "pledge");
1.20 deraadt 358:
359: /* set constants for username/uid display correctly */
360: if (!do_unames) {
361: uname_field = " UID ";
1.26 millert 362: get_userid = format_uid;
1.20 deraadt 363: }
364: /* initialize the kernel memory interface */
365: if (machine_init(&statics) == -1)
1.1 downsj 366: exit(1);
1.20 deraadt 367:
368: /* determine sorting order index, if necessary */
369: if (order_name != NULL) {
370: if ((order_index = string_index(order_name,
371: statics.order_names)) == -1) {
1.69 tedu 372: char **pp, msg[512];
1.20 deraadt 373:
1.60 otto 374: snprintf(msg, sizeof(msg),
375: "'%s' is not a recognized sorting order",
1.22 deraadt 376: order_name);
1.60 otto 377: strlcat(msg, ". Valid are:", sizeof(msg));
1.20 deraadt 378: pp = statics.order_names;
1.60 otto 379: while (*pp != NULL) {
380: strlcat(msg, " ", sizeof(msg));
381: strlcat(msg, *pp++, sizeof(msg));
382: }
383: new_message(MT_delayed, msg);
1.62 otto 384: order_index = 0;
1.20 deraadt 385: }
1.1 downsj 386: }
387:
1.20 deraadt 388: /* initialize termcap */
389: init_termcap(interactive);
390:
391: /* initialize display interface */
1.58 otto 392: max_topn = display_init(&statics);
393:
1.20 deraadt 394: /* print warning if user requested more processes than we can display */
1.60 otto 395: if (topn > max_topn)
396: new_message(MT_delayed,
397: "warning: this terminal can only display %d processes",
1.22 deraadt 398: max_topn);
1.20 deraadt 399: /* adjust for topn == Infinity */
400: if (topn == Infinity) {
401: /*
402: * For smart terminals, infinity really means everything that can
403: * be displayed, or Largest.
404: * On dumb terminals, infinity means every process in the system!
405: * We only really want to do that if it was explicitly specified.
406: * This is always the case when "Default_TOPN != Infinity". But if
407: * topn wasn't explicitly specified and we are on a dumb terminal
408: * and the default is Infinity, then (and only then) we use
409: * "Nominal_TOPN" instead.
410: */
1.1 downsj 411: #if Default_TOPN == Infinity
1.20 deraadt 412: topn = smart_terminal ? Largest :
413: (topn_specified ? Largest : Nominal_TOPN);
414: #else
415: topn = Largest;
1.1 downsj 416: #endif
417: }
1.20 deraadt 418: /* set header display accordingly */
419: display_header(topn > 0);
1.1 downsj 420:
1.20 deraadt 421: /* determine interactive state */
422: if (interactive == Maybe)
423: interactive = smart_terminal;
1.1 downsj 424:
1.20 deraadt 425: /* if # of displays not specified, fill it in */
426: if (displays == 0)
427: displays = smart_terminal ? Infinity : 1;
1.1 downsj 428:
429: /*
1.20 deraadt 430: * block interrupt signals while setting up the screen and the
431: * handlers
1.1 downsj 432: */
1.20 deraadt 433: sigemptyset(&mask);
434: sigaddset(&mask, SIGINT);
435: sigaddset(&mask, SIGQUIT);
436: sigaddset(&mask, SIGTSTP);
437: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.57 otto 438: if (interactive)
439: init_screen();
1.90 deraadt 440: if (pledge("stdio getpw tty proc ps vminfo", NULL) == -1)
441: err(1, "pledge");
1.20 deraadt 442: (void) signal(SIGINT, leave);
1.30 deraadt 443: siginterrupt(SIGINT, 1);
1.20 deraadt 444: (void) signal(SIGQUIT, leave);
445: (void) signal(SIGTSTP, tstop);
1.51 otto 446: if (smart_terminal)
447: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 448: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.7 deraadt 449: restart:
1.1 downsj 450:
1.20 deraadt 451: /*
452: * main loop -- repeat while display count is positive or while it
453: * indicates infinity (by being -1)
454: */
455: while ((displays == -1) || (displays-- > 0)) {
1.70 otto 456: if (winchflag) {
457: /*
458: * reascertain the screen
459: * dimensions
460: */
461: get_screensize();
462: resizeterm(screen_length, screen_width + 1);
463:
464: /* tell display to resize */
465: max_topn = display_resize();
466:
467: /* reset the signal handler */
468: (void) signal(SIGWINCH, sigwinch);
469:
470: reset_display();
471: winchflag = 0;
472: }
473:
1.20 deraadt 474: /* get the current stats */
475: get_system_info(&system_info);
476:
477: /* get the current set of processes */
478: processes = get_process_info(&system_info, &ps,
479: proc_compares[order_index]);
480:
481: /* display the load averages */
1.51 otto 482: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 483:
484: /* display the current time */
485: /* this method of getting the time SHOULD be fairly portable */
486: time(&curr_time);
487: i_timeofday(&curr_time);
488:
1.80 guenther 489: /* display process/threads state breakdown */
490: i_procstates(system_info.p_total, system_info.procstates,
491: ps.threads);
1.20 deraadt 492:
493: /* display the cpu state percentage breakdown */
1.94 cheloha 494: i_cpustates(system_info.cpustates);
1.1 downsj 495:
1.20 deraadt 496: /* display memory stats */
1.51 otto 497: i_memory(system_info.memory);
1.1 downsj 498:
1.20 deraadt 499: /* handle message area */
1.51 otto 500: i_message();
1.1 downsj 501:
1.83 mpi 502: /* get the string to use for the process area header */
503: header_text = format_header(uname_field, ps.threads);
504:
1.20 deraadt 505: /* update the header area */
1.51 otto 506: i_header(header_text);
1.20 deraadt 507:
1.63 otto 508: if (topn == Infinity) {
509: #if Default_TOPN == Infinity
510: topn = smart_terminal ? Largest :
511: (topn_specified ? Largest : Nominal_TOPN);
512: #else
513: topn = Largest;
514: #endif
515: }
516:
1.20 deraadt 517: if (topn > 0) {
518: /* determine number of processes to actually display */
519: /*
520: * this number will be the smallest of: active
521: * processes, number user requested, number current
522: * screen accommodates
523: */
524: active_procs = system_info.p_active;
525: if (active_procs > topn)
526: active_procs = topn;
527: if (active_procs > max_topn)
528: active_procs = max_topn;
529: /* now show the top "n" processes. */
1.51 otto 530: for (i = 0; i < active_procs; i++) {
531: pid_t pid;
532: char * s;
533:
534: s = format_next_process(processes, get_userid,
1.83 mpi 535: &pid, ps.threads);
1.51 otto 536: i_process(i, s, pid == hlpid);
537: }
1.54 otto 538: }
1.20 deraadt 539:
540: /* do end-screen processing */
1.52 deraadt 541: u_endscreen();
1.20 deraadt 542:
543: /* now, flush the output buffer */
544: fflush(stdout);
545:
1.51 otto 546: if (smart_terminal)
547: refresh();
548:
1.20 deraadt 549: /* only do the rest if we have more displays to show */
550: if (displays) {
551: /* switch out for new display on smart terminals */
552: no_command = Yes;
553: if (!interactive) {
554: /* set up alarm */
555: (void) signal(SIGALRM, onalrm);
556: (void) alarm((unsigned) delay);
557:
558: /* wait for the rest of it .... */
559: pause();
1.42 otto 560: if (leaveflag)
561: exit(0);
562: if (tstopflag) {
563: (void) signal(SIGTSTP, SIG_DFL);
564: (void) kill(0, SIGTSTP);
565: /* reset the signal handler */
566: (void) signal(SIGTSTP, tstop);
567: tstopflag = 0;
568: }
1.20 deraadt 569: } else {
570: while (no_command)
571: if (rundisplay())
572: goto restart;
573: }
574: }
575: }
1.1 downsj 576:
1.20 deraadt 577: quit(0);
578: /* NOTREACHED */
579: return (0);
580: }
1.7 deraadt 581:
1.20 deraadt 582: int
583: rundisplay(void)
584: {
1.72 lum 585: static char tempbuf[TEMPBUFSIZE];
1.20 deraadt 586: sigset_t mask;
587: char ch, *iptr;
588: int change, i;
1.28 deraadt 589: struct pollfd pfd[1];
1.76 jsing 590: static char command_chars[] = "\f qh?en#sdkriIuSopCHg+P1";
1.7 deraadt 591:
1.20 deraadt 592: /*
593: * assume valid command unless told
594: * otherwise
595: */
596: no_command = No;
1.7 deraadt 597:
1.20 deraadt 598: /*
599: * set up arguments for select with
600: * timeout
601: */
1.28 deraadt 602: pfd[0].fd = STDIN_FILENO;
603: pfd[0].events = POLLIN;
1.20 deraadt 604:
1.42 otto 605: if (leaveflag)
606: quit(0);
1.20 deraadt 607: if (tstopflag) {
608: /* move to the lower left */
609: end_screen();
610: fflush(stdout);
611:
612: /*
613: * default the signal handler
614: * action
615: */
616: (void) signal(SIGTSTP, SIG_DFL);
617:
618: /*
619: * unblock the signal and
620: * send ourselves one
621: */
622: sigemptyset(&mask);
623: sigaddset(&mask, SIGTSTP);
624: sigprocmask(SIG_UNBLOCK, &mask, NULL);
625: (void) kill(0, SIGTSTP);
626:
627: /* reset the signal handler */
628: (void) signal(SIGTSTP, tstop);
629:
630: /* reinit screen */
631: reinit_screen();
632: reset_display();
633: tstopflag = 0;
634: return 1;
635: }
636: /*
637: * wait for either input or the end
638: * of the delay period
639: */
1.81 millert 640: if (poll(pfd, 1, (int)(delay * 1000)) > 0) {
1.20 deraadt 641: char *errmsg;
1.30 deraadt 642: ssize_t len;
1.81 millert 643:
644: if ((pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL)))
645: exit(1);
1.20 deraadt 646:
647: clear_message();
648:
649: /*
650: * now read it and convert to
651: * command strchr
652: */
1.30 deraadt 653: while (1) {
1.36 deraadt 654: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 655: if (len == -1 && errno == EINTR)
656: continue;
657: if (len == 0)
658: exit(1);
659: break;
660: }
1.20 deraadt 661: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 662: /* illegal command */
663: new_message(MT_standout, " Command not understood");
1.51 otto 664: putr();
1.1 downsj 665: no_command = Yes;
1.20 deraadt 666: fflush(stdout);
667: return (0);
668: }
669:
670: change = iptr - command_chars;
671:
672: switch (change) {
673: case CMD_redraw: /* redraw screen */
674: reset_display();
675: break;
676:
677: case CMD_update: /* merely update display */
678: /*
679: * is the load average high?
680: */
681: if (system_info.load_avg[0] > LoadMax) {
682: /* yes, go home for visual feedback */
683: go_home();
684: fflush(stdout);
1.1 downsj 685: }
1.20 deraadt 686: break;
687:
688: case CMD_quit: /* quit */
689: quit(0);
690: break;
691:
692: case CMD_help1: /* help */
693: case CMD_help2:
694: clear();
695: show_help();
1.51 otto 696: anykey();
697: clear();
1.20 deraadt 698: break;
699:
700: case CMD_errors: /* show errors */
701: if (error_count() == 0) {
702: new_message(MT_standout,
703: " Currently no errors to report.");
1.51 otto 704: putr();
1.20 deraadt 705: no_command = Yes;
706: } else {
1.1 downsj 707: clear();
1.20 deraadt 708: show_errors();
1.51 otto 709: anykey();
710: clear();
1.20 deraadt 711: }
712: break;
713:
714: case CMD_number1: /* new number */
715: case CMD_number2:
716: new_message(MT_standout,
717: "Number of processes to show: ");
1.63 otto 718:
719: if (readline(tempbuf, 8) > 0) {
1.73 lum 720: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 721: if (i > max_topn) {
1.65 otto 722: new_message(MT_standout |
723: MT_delayed,
1.63 otto 724: " This terminal can only "
725: "display %d processes.",
726: max_topn);
727: putr();
1.65 otto 728: }
729: if ((i > topn || i == Infinity)
1.64 otto 730: && topn == 0) {
1.63 otto 731: /* redraw the header */
732: display_header(Yes);
1.65 otto 733: } else if (i == 0)
734: display_header(No);
1.63 otto 735: topn = i;
736: } else {
737: new_message(MT_standout,
1.65 otto 738: "Processes should be a "
739: "non-negative number");
1.89 deraadt 740: putr();
1.63 otto 741: no_command = Yes;
1.20 deraadt 742: }
1.63 otto 743: } else
744: clear_message();
1.20 deraadt 745: break;
746:
747: case CMD_delay: /* new seconds delay */
748: new_message(MT_standout, "Seconds to delay: ");
1.63 otto 749: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.20 deraadt 750: char *endp;
1.56 otto 751: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 752:
1.71 lum 753: if (newdelay >= 0 && newdelay <= 1000000 &&
1.48 otto 754: *endp == '\0') {
1.16 hugh 755: delay = newdelay;
1.48 otto 756: } else {
757: new_message(MT_standout,
758: "Delay should be a non-negative number");
1.51 otto 759: putr();
1.48 otto 760: no_command = Yes;
761: }
762:
763: } else
764: clear_message();
1.20 deraadt 765: break;
766:
767: case CMD_displays: /* change display count */
768: new_message(MT_standout,
769: "Displays to show (currently %s): ",
770: displays == -1 ? "infinite" :
771: itoa(displays));
772:
1.63 otto 773: if (readline(tempbuf, 10) > 0) {
1.73 lum 774: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 775: if (i == 0)
776: quit(0);
777: displays = i;
778: } else {
779: new_message(MT_standout,
780: "Displays should be a non-negative number");
781: putr();
782: no_command = Yes;
783: }
784: } else
785: clear_message();
1.20 deraadt 786: break;
787:
788: case CMD_kill: /* kill program */
789: new_message(0, "kill ");
1.63 otto 790: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 791: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 792: new_message(MT_standout, "%s", errmsg);
1.51 otto 793: putr();
1.1 downsj 794: no_command = Yes;
795: }
1.20 deraadt 796: } else
797: clear_message();
798: break;
799:
800: case CMD_renice: /* renice program */
801: new_message(0, "renice ");
1.63 otto 802: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 803: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 804: new_message(MT_standout, "%s", errmsg);
1.51 otto 805: putr();
1.1 downsj 806: no_command = Yes;
807: }
1.20 deraadt 808: } else
809: clear_message();
810: break;
1.1 downsj 811:
1.20 deraadt 812: case CMD_idletog:
813: case CMD_idletog2:
814: ps.idle = !ps.idle;
815: new_message(MT_standout | MT_delayed,
816: " %sisplaying idle processes.",
817: ps.idle ? "D" : "Not d");
1.51 otto 818: putr();
1.20 deraadt 819: break;
1.1 downsj 820:
1.20 deraadt 821: case CMD_user:
822: new_message(MT_standout,
823: "Username to show: ");
1.63 otto 824: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.78 brynet 825: if ((tempbuf[0] == '+' || tempbuf[0] == '-') &&
1.56 otto 826: tempbuf[1] == '\0') {
1.21 millert 827: ps.uid = (uid_t)-1;
1.78 brynet 828: ps.huid = (uid_t)-1;
1.95 ! kn 829: } else if (filteruser(tempbuf) == -1) {
! 830: new_message(MT_standout,
! 831: " %s: unknown user",
! 832: tempbuf[0] == '-' ? tempbuf + 1 :
! 833: tempbuf);
! 834: no_command = Yes;
1.78 brynet 835: }
1.51 otto 836: putr();
1.20 deraadt 837: } else
838: clear_message();
839: break;
1.12 fgsch 840:
1.20 deraadt 841: case CMD_system:
842: ps.system = !ps.system;
1.35 otto 843: old_system = ps.system;
1.20 deraadt 844: new_message(MT_standout | MT_delayed,
845: " %sisplaying system processes.",
846: ps.system ? "D" : "Not d");
847: break;
848:
849: case CMD_order:
850: new_message(MT_standout,
851: "Order to sort: ");
1.63 otto 852: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 853: if ((i = string_index(tempbuf,
1.20 deraadt 854: statics.order_names)) == -1) {
855: new_message(MT_standout,
856: " %s: unrecognized sorting order",
1.56 otto 857: tempbuf);
1.20 deraadt 858: no_command = Yes;
859: } else
1.1 downsj 860: order_index = i;
1.51 otto 861: putr();
1.35 otto 862: } else
863: clear_message();
864: break;
865:
866: case CMD_pid:
1.37 jaredy 867: new_message(MT_standout, "Process ID to show: ");
1.63 otto 868: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 869: if (tempbuf[0] == '+' &&
870: tempbuf[1] == '\0') {
1.35 otto 871: ps.pid = (pid_t)-1;
872: ps.system = old_system;
1.95 ! kn 873: } else if (filterpid(tempbuf, 0) == -1) {
! 874: new_message(MT_standout,
! 875: " %s: unknown pid", tempbuf);
! 876: no_command = Yes;
1.35 otto 877: }
1.51 otto 878: putr();
1.20 deraadt 879: } else
880: clear_message();
1.40 markus 881: break;
882:
883: case CMD_command:
884: show_args = (show_args == No) ? Yes : No;
1.41 tedu 885: break;
1.89 deraadt 886:
1.41 tedu 887: case CMD_threads:
888: ps.threads = !ps.threads;
889: old_threads = ps.threads;
890: new_message(MT_standout | MT_delayed,
891: " %sisplaying threads.",
892: ps.threads ? "D" : "Not d");
1.45 otto 893: break;
894:
895: case CMD_grep:
896: new_message(MT_standout,
897: "Grep command name: ");
1.63 otto 898: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.45 otto 899: free(ps.command);
1.56 otto 900: if (tempbuf[0] == '+' &&
901: tempbuf[1] == '\0')
1.45 otto 902: ps.command = NULL;
1.95 ! kn 903: else if ((ps.command = strdup(tempbuf)) == NULL)
! 904: err(1, NULL);
1.51 otto 905: putr();
906: } else
907: clear_message();
908: break;
909:
910: case CMD_hl:
1.53 otto 911: new_message(MT_standout, "Process ID to highlight: ");
1.63 otto 912: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 913: if (tempbuf[0] == '+' &&
914: tempbuf[1] == '\0') {
1.95 ! kn 915: hlpid = (pid_t)-1;
! 916: } else if (filterpid(tempbuf, Yes) == -1) {
! 917: new_message(MT_standout,
! 918: " %s: unknown pid", tempbuf);
! 919: no_command = Yes;
1.51 otto 920: }
921: putr();
1.45 otto 922: } else
923: clear_message();
1.20 deraadt 924: break;
1.1 downsj 925:
1.47 otto 926: case CMD_add:
927: ps.uid = (uid_t)-1; /* uid */
1.78 brynet 928: ps.huid = (uid_t)-1;
1.89 deraadt 929: ps.pid = (pid_t)-1; /* pid */
1.47 otto 930: ps.system = old_system;
931: ps.command = NULL; /* grep */
1.95 ! kn 932: hlpid = (pid_t)-1;
1.47 otto 933: break;
1.68 tedu 934: case CMD_cpus:
935: combine_cpus = !combine_cpus;
936: max_topn = display_resize();
937: reset_display();
938: break;
1.20 deraadt 939: default:
940: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 941: putr();
1.1 downsj 942: }
943: }
944:
1.20 deraadt 945: /* flush out stuff that may have been written */
946: fflush(stdout);
947: return 0;
1.1 downsj 948: }
949:
1.20 deraadt 950:
1.1 downsj 951: /*
952: * reset_display() - reset all the display routine pointers so that entire
953: * screen will get redrawn.
954: */
1.19 pvalchev 955: static void
956: reset_display(void)
1.1 downsj 957: {
1.51 otto 958: if (smart_terminal) {
959: clear();
960: refresh();
961: }
1.1 downsj 962: }
963:
1.34 deraadt 964: /* ARGSUSED */
1.19 pvalchev 965: void
1.20 deraadt 966: leave(int signo)
1.1 downsj 967: {
1.20 deraadt 968: leaveflag = 1;
1.1 downsj 969: }
970:
1.34 deraadt 971: /* ARGSUSED */
1.19 pvalchev 972: void
1.20 deraadt 973: tstop(int signo)
1.1 downsj 974: {
1.20 deraadt 975: tstopflag = 1;
1.1 downsj 976: }
977:
1.34 deraadt 978: /* ARGSUSED */
1.19 pvalchev 979: void
1.51 otto 980: sigwinch(int signo)
1.1 downsj 981: {
1.20 deraadt 982: winchflag = 1;
1.1 downsj 983: }
984:
1.34 deraadt 985: /* ARGSUSED */
1.19 pvalchev 986: void
1.20 deraadt 987: onalrm(int signo)
1.1 downsj 988: {
989: }
990:
1.19 pvalchev 991: void
1.20 deraadt 992: quit(int ret)
1.1 downsj 993: {
1.20 deraadt 994: end_screen();
995: exit(ret);
1.1 downsj 996: }