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1.56 ! otto 1: /* $OpenBSD: top.c,v 1.55 2007/09/26 11:06:41 otto 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>
1.2 downsj 39: #include <stdlib.h>
1.35 otto 40: #include <limits.h>
1.2 downsj 41: #include <unistd.h>
1.1 downsj 42:
43: /* includes specific to top */
44: #include "display.h" /* interface to display package */
45: #include "screen.h" /* interface to screen package */
46: #include "top.h"
47: #include "top.local.h"
48: #include "boolean.h"
49: #include "machine.h"
50: #include "utils.h"
51:
52: /* Size of the stdio buffer given to stdout */
1.20 deraadt 53: #define BUFFERSIZE 2048
1.1 downsj 54:
55: /* The buffer that stdio will use */
1.32 deraadt 56: char stdoutbuf[BUFFERSIZE];
1.1 downsj 57:
58: /* signal handling routines */
1.32 deraadt 59: static void leave(int);
60: static void onalrm(int);
61: static void tstop(int);
1.51 otto 62: static void sigwinch(int);
1.1 downsj 63:
1.25 deraadt 64: volatile sig_atomic_t leaveflag, tstopflag, winchflag;
1.7 deraadt 65:
1.32 deraadt 66: static void reset_display(void);
1.20 deraadt 67: int rundisplay(void);
1.1 downsj 68:
1.32 deraadt 69: static int max_topn; /* maximum displayable processes */
1.1 downsj 70:
1.32 deraadt 71: extern int (*proc_compares[])(const void *, const void *);
1.20 deraadt 72: int order_index;
1.1 downsj 73:
1.20 deraadt 74: int displays = 0; /* indicates unspecified */
75: char do_unames = Yes;
76: struct process_select ps;
77: char interactive = Maybe;
78: char warnings = 0;
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;
1.51 otto 86: pid_t hlpid = -1;
1.1 downsj 87:
88: #if Default_TOPN == Infinity
1.20 deraadt 89: char topn_specified = No;
1.1 downsj 90: #endif
91:
1.20 deraadt 92: /*
93: * these defines enumerate the "strchr"s of the commands in
94: * command_chars
95: */
1.1 downsj 96: #define CMD_redraw 0
97: #define CMD_update 1
98: #define CMD_quit 2
99: #define CMD_help1 3
100: #define CMD_help2 4
1.20 deraadt 101: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
102: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 103: #define CMD_number1 6
104: #define CMD_number2 7
105: #define CMD_delay 8
106: #define CMD_displays 9
107: #define CMD_kill 10
108: #define CMD_renice 11
1.32 deraadt 109: #define CMD_idletog 12
110: #define CMD_idletog2 13
1.1 downsj 111: #define CMD_user 14
1.12 fgsch 112: #define CMD_system 15
1.32 deraadt 113: #define CMD_order 16
1.35 otto 114: #define CMD_pid 17
1.40 markus 115: #define CMD_command 18
1.41 tedu 116: #define CMD_threads 19
1.45 otto 117: #define CMD_grep 20
1.47 otto 118: #define CMD_add 21
1.51 otto 119: #define CMD_hl 22
1.1 downsj 120:
1.27 deraadt 121: static void
1.20 deraadt 122: usage(void)
123: {
1.22 deraadt 124: extern char *__progname;
125:
1.20 deraadt 126: fprintf(stderr,
1.50 jmc 127: "usage: %s [-bCIinqSTu] [-d count] [-g string] [-o field] "
128: "[-p pid] [-s time]\n\t[-U user] [number]\n",
1.22 deraadt 129: __progname);
1.20 deraadt 130: }
131:
1.27 deraadt 132: static void
1.20 deraadt 133: parseargs(int ac, char **av)
134: {
135: char *endp;
136: int i;
137:
1.45 otto 138: while ((i = getopt(ac, av, "STICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 139: switch (i) {
1.44 otto 140: case 'C':
141: show_args = Yes;
142: break;
143:
1.20 deraadt 144: case 'u': /* toggle uid/username display */
145: do_unames = !do_unames;
146: break;
147:
148: case 'U': /* display only username's processes */
1.21 millert 149: if ((ps.uid = userid(optarg)) == (uid_t)-1) {
1.20 deraadt 150: fprintf(stderr, "%s: unknown user\n", optarg);
151: exit(1);
152: }
153: break;
1.1 downsj 154:
1.35 otto 155: case 'p': { /* display only process id */
156: const char *errstr;
157:
1.55 otto 158: i = strtonum(optarg, 0, INT_MAX, &errstr);
159: if (errstr != NULL || !find_pid(i)) {
1.35 otto 160: fprintf(stderr, "%s: unknown pid\n", optarg);
161: exit(1);
162: }
1.55 otto 163: ps.pid = (pid_t)i;
1.35 otto 164: ps.system = Yes;
165: break;
166: }
167:
1.20 deraadt 168: case 'S': /* show system processes */
1.35 otto 169: ps.system = Yes;
170: old_system = Yes;
1.20 deraadt 171: break;
172:
1.41 tedu 173: case 'T': /* show threads */
174: ps.threads = Yes;
175: old_threads = Yes;
176: break;
177:
1.20 deraadt 178: case 'I': /* show idle processes */
179: ps.idle = !ps.idle;
180: break;
181:
182: case 'i': /* go interactive regardless */
183: interactive = Yes;
184: break;
185:
186: case 'n': /* batch, or non-interactive */
187: case 'b':
188: interactive = No;
189: break;
190:
191: case 'd': /* number of displays to show */
192: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
193: displays = i;
194: break;
1.32 deraadt 195: }
1.22 deraadt 196: warnx("warning: display count should be positive "
197: "-- option ignored");
1.20 deraadt 198: warnings++;
199: break;
200:
201: case 's':
202: delay = strtod(optarg, &endp);
203:
204: if (delay > 0 && delay <= 1000000 && *endp == '\0')
205: break;
206:
1.22 deraadt 207: warnx("warning: delay should be a non-negative number"
208: " -- using default");
1.20 deraadt 209: delay = Default_DELAY;
210: warnings++;
211: break;
212:
213: case 'q': /* be quick about it */
214: /* only allow this if user is really root */
215: if (getuid() == 0) {
216: /* be very un-nice! */
217: (void) nice(-20);
218: break;
219: }
1.22 deraadt 220: warnx("warning: `-q' option can only be used by root");
1.20 deraadt 221: warnings++;
222: break;
223:
224: case 'o': /* select sort order */
225: order_name = optarg;
226: break;
227:
1.45 otto 228: case 'g': /* grep command name */
229: ps.command = strdup(optarg);
230: break;
231:
1.20 deraadt 232: default:
233: usage();
234: exit(1);
1.1 downsj 235: }
1.20 deraadt 236: }
1.1 downsj 237:
1.20 deraadt 238: /* get count of top processes to display (if any) */
239: if (optind < ac) {
240: if ((topn = atoiwi(av[optind])) == Invalid) {
1.49 otto 241: warnx("warning: process count should "
242: "be a non-negative number -- using default");
1.20 deraadt 243: warnings++;
1.46 otto 244: topn = Infinity;
1.1 downsj 245: }
1.20 deraadt 246: #if Default_TOPN == Infinity
1.1 downsj 247: else
1.20 deraadt 248: topn_specified = Yes;
249: #endif
250: }
251: }
1.1 downsj 252:
1.20 deraadt 253: struct system_info system_info;
254: struct statics statics;
1.1 downsj 255:
1.20 deraadt 256: int
257: main(int argc, char *argv[])
258: {
259: char *uname_field = "USERNAME", *header_text, *env_top;
1.27 deraadt 260: char *(*get_userid)(uid_t) = username, **preset_argv, **av;
1.20 deraadt 261: int preset_argc = 0, ac, active_procs, i;
262: sigset_t mask, oldmask;
263: time_t curr_time;
264: caddr_t processes;
1.1 downsj 265:
1.20 deraadt 266: /* set the buffer for stdout */
267: #ifdef DEBUG
268: setbuffer(stdout, NULL, 0);
1.1 downsj 269: #else
1.20 deraadt 270: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 271: #endif
272:
1.20 deraadt 273: /* initialize some selection options */
274: ps.idle = Yes;
275: ps.system = No;
1.21 millert 276: ps.uid = (uid_t)-1;
1.35 otto 277: ps.pid = (pid_t)-1;
1.20 deraadt 278: ps.command = NULL;
279:
280: /* get preset options from the environment */
281: if ((env_top = getenv("TOP")) != NULL) {
282: av = preset_argv = argparse(env_top, &preset_argc);
283: ac = preset_argc;
284:
285: /*
286: * set the dummy argument to an explanatory message, in case
287: * getopt encounters a bad argument
288: */
289: preset_argv[0] = "while processing environment";
290: }
291: /* process options */
292: do {
293: /*
294: * if we're done doing the presets, then process the real
295: * arguments
296: */
297: if (preset_argc == 0) {
298: ac = argc;
299: av = argv;
300: optind = 1;
301: }
302: parseargs(ac, av);
303: i = preset_argc;
304: preset_argc = 0;
305: } while (i != 0);
306:
307: /* set constants for username/uid display correctly */
308: if (!do_unames) {
309: uname_field = " UID ";
1.26 millert 310: get_userid = format_uid;
1.20 deraadt 311: }
312: /* initialize the kernel memory interface */
313: if (machine_init(&statics) == -1)
1.1 downsj 314: exit(1);
1.20 deraadt 315:
316: /* determine sorting order index, if necessary */
317: if (order_name != NULL) {
318: if ((order_index = string_index(order_name,
319: statics.order_names)) == -1) {
320: char **pp;
321:
1.22 deraadt 322: warnx("'%s' is not a recognized sorting order",
323: order_name);
1.20 deraadt 324: fprintf(stderr, "\tTry one of these:");
325: pp = statics.order_names;
326: while (*pp != NULL)
327: fprintf(stderr, " %s", *pp++);
328: fputc('\n', stderr);
329: exit(1);
330: }
1.1 downsj 331: }
332:
1.20 deraadt 333: /* initialize termcap */
334: init_termcap(interactive);
335:
336: /* get the string to use for the process area header */
337: header_text = format_header(uname_field);
338:
339: /* initialize display interface */
340: if ((max_topn = display_init(&statics)) == -1) {
1.22 deraadt 341: warnx("can't allocate sufficient memory");
1.20 deraadt 342: exit(4);
343: }
344: /* print warning if user requested more processes than we can display */
345: if (topn > max_topn) {
1.22 deraadt 346: warnx("warning: this terminal can only display %d processes",
347: max_topn);
1.1 downsj 348: warnings++;
1.20 deraadt 349: }
350: /* adjust for topn == Infinity */
351: if (topn == Infinity) {
352: /*
353: * For smart terminals, infinity really means everything that can
354: * be displayed, or Largest.
355: * On dumb terminals, infinity means every process in the system!
356: * We only really want to do that if it was explicitly specified.
357: * This is always the case when "Default_TOPN != Infinity". But if
358: * topn wasn't explicitly specified and we are on a dumb terminal
359: * and the default is Infinity, then (and only then) we use
360: * "Nominal_TOPN" instead.
361: */
1.1 downsj 362: #if Default_TOPN == Infinity
1.20 deraadt 363: topn = smart_terminal ? Largest :
364: (topn_specified ? Largest : Nominal_TOPN);
365: #else
366: topn = Largest;
1.1 downsj 367: #endif
368: }
1.20 deraadt 369: /* set header display accordingly */
370: display_header(topn > 0);
1.1 downsj 371:
1.20 deraadt 372: /* determine interactive state */
373: if (interactive == Maybe)
374: interactive = smart_terminal;
1.1 downsj 375:
1.20 deraadt 376: /* if # of displays not specified, fill it in */
377: if (displays == 0)
378: displays = smart_terminal ? Infinity : 1;
1.1 downsj 379:
380: /*
1.20 deraadt 381: * block interrupt signals while setting up the screen and the
382: * handlers
1.1 downsj 383: */
1.20 deraadt 384: sigemptyset(&mask);
385: sigaddset(&mask, SIGINT);
386: sigaddset(&mask, SIGQUIT);
387: sigaddset(&mask, SIGTSTP);
388: sigprocmask(SIG_BLOCK, &mask, &oldmask);
389: init_screen();
390: (void) signal(SIGINT, leave);
1.30 deraadt 391: siginterrupt(SIGINT, 1);
1.20 deraadt 392: (void) signal(SIGQUIT, leave);
393: (void) signal(SIGTSTP, tstop);
1.51 otto 394: if (smart_terminal)
395: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 396: sigprocmask(SIG_SETMASK, &oldmask, NULL);
397: if (warnings) {
398: fputs("....", stderr);
399: fflush(stderr); /* why must I do this? */
1.32 deraadt 400: sleep((unsigned)(3 * warnings));
1.20 deraadt 401: fputc('\n', stderr);
402: }
1.7 deraadt 403: restart:
1.1 downsj 404:
1.20 deraadt 405: /*
406: * main loop -- repeat while display count is positive or while it
407: * indicates infinity (by being -1)
408: */
409: while ((displays == -1) || (displays-- > 0)) {
410: /* get the current stats */
411: get_system_info(&system_info);
412:
413: /* get the current set of processes */
414: processes = get_process_info(&system_info, &ps,
415: proc_compares[order_index]);
416:
417: /* display the load averages */
1.51 otto 418: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 419:
420: /* display the current time */
421: /* this method of getting the time SHOULD be fairly portable */
422: time(&curr_time);
423: i_timeofday(&curr_time);
424:
425: /* display process state breakdown */
1.51 otto 426: i_procstates(system_info.p_total, system_info.procstates);
1.20 deraadt 427:
428: /* display the cpu state percentage breakdown */
1.51 otto 429: i_cpustates(system_info.cpustates);
1.1 downsj 430:
1.20 deraadt 431: /* display memory stats */
1.51 otto 432: i_memory(system_info.memory);
1.1 downsj 433:
1.20 deraadt 434: /* handle message area */
1.51 otto 435: i_message();
1.1 downsj 436:
1.20 deraadt 437: /* update the header area */
1.51 otto 438: i_header(header_text);
1.20 deraadt 439:
440: if (topn > 0) {
441: /* determine number of processes to actually display */
442: /*
443: * this number will be the smallest of: active
444: * processes, number user requested, number current
445: * screen accommodates
446: */
447: active_procs = system_info.p_active;
448: if (active_procs > topn)
449: active_procs = topn;
450: if (active_procs > max_topn)
451: active_procs = max_topn;
452: /* now show the top "n" processes. */
1.51 otto 453: for (i = 0; i < active_procs; i++) {
454: pid_t pid;
455: char * s;
456:
457: s = format_next_process(processes, get_userid,
458: &pid);
459: i_process(i, s, pid == hlpid);
460: }
1.54 otto 461: }
1.20 deraadt 462:
463: /* do end-screen processing */
1.52 deraadt 464: u_endscreen();
1.20 deraadt 465:
466: /* now, flush the output buffer */
467: fflush(stdout);
468:
1.51 otto 469: if (smart_terminal)
470: refresh();
471:
1.20 deraadt 472: /* only do the rest if we have more displays to show */
473: if (displays) {
474: /* switch out for new display on smart terminals */
475: no_command = Yes;
476: if (!interactive) {
477: /* set up alarm */
478: (void) signal(SIGALRM, onalrm);
479: (void) alarm((unsigned) delay);
480:
481: /* wait for the rest of it .... */
482: pause();
1.42 otto 483: if (leaveflag)
484: exit(0);
485: if (tstopflag) {
486: (void) signal(SIGTSTP, SIG_DFL);
487: (void) kill(0, SIGTSTP);
488: /* reset the signal handler */
489: (void) signal(SIGTSTP, tstop);
490: tstopflag = 0;
491: }
1.20 deraadt 492: } else {
493: while (no_command)
494: if (rundisplay())
495: goto restart;
496: }
497: }
498: }
1.1 downsj 499:
1.20 deraadt 500: quit(0);
501: /* NOTREACHED */
502: return (0);
503: }
1.7 deraadt 504:
1.20 deraadt 505: int
506: rundisplay(void)
507: {
1.56 ! otto 508: static char tempbuf[50];
1.20 deraadt 509: sigset_t mask;
510: char ch, *iptr;
511: int change, i;
1.28 deraadt 512: struct pollfd pfd[1];
1.21 millert 513: uid_t uid;
1.51 otto 514: static char command_chars[] = "\f qh?en#sdkriIuSopCTg+P";
1.7 deraadt 515:
1.20 deraadt 516: /*
517: * assume valid command unless told
518: * otherwise
519: */
520: no_command = No;
1.7 deraadt 521:
1.20 deraadt 522: /*
523: * set up arguments for select with
524: * timeout
525: */
1.28 deraadt 526: pfd[0].fd = STDIN_FILENO;
527: pfd[0].events = POLLIN;
1.20 deraadt 528:
1.42 otto 529: if (leaveflag)
530: quit(0);
1.20 deraadt 531: if (tstopflag) {
532: /* move to the lower left */
533: end_screen();
534: fflush(stdout);
535:
536: /*
537: * default the signal handler
538: * action
539: */
540: (void) signal(SIGTSTP, SIG_DFL);
541:
542: /*
543: * unblock the signal and
544: * send ourselves one
545: */
546: sigemptyset(&mask);
547: sigaddset(&mask, SIGTSTP);
548: sigprocmask(SIG_UNBLOCK, &mask, NULL);
549: (void) kill(0, SIGTSTP);
550:
551: /* reset the signal handler */
552: (void) signal(SIGTSTP, tstop);
553:
554: /* reinit screen */
555: reinit_screen();
556: reset_display();
557: tstopflag = 0;
558: return 1;
559: }
560: if (winchflag) {
561: /*
562: * reascertain the screen
563: * dimensions
564: */
565: get_screensize();
1.51 otto 566: resizeterm(screen_length, screen_width + 1);
1.20 deraadt 567:
568: /* tell display to resize */
569: max_topn = display_resize();
570:
571: /* reset the signal handler */
1.51 otto 572: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 573:
574: reset_display();
575: winchflag = 0;
576: return 1;
577: }
578: /*
579: * wait for either input or the end
580: * of the delay period
581: */
1.33 deraadt 582: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 583: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 584: char *errmsg;
1.30 deraadt 585: ssize_t len;
1.20 deraadt 586: int newval;
587:
588: clear_message();
589:
590: /*
591: * now read it and convert to
592: * command strchr
593: */
1.30 deraadt 594: while (1) {
1.36 deraadt 595: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 596: if (len == -1 && errno == EINTR)
597: continue;
598: if (len == 0)
599: exit(1);
600: break;
601: }
1.20 deraadt 602: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 603: /* illegal command */
604: new_message(MT_standout, " Command not understood");
1.51 otto 605: putr();
1.1 downsj 606: no_command = Yes;
1.20 deraadt 607: fflush(stdout);
608: return (0);
609: }
610:
611: change = iptr - command_chars;
612:
613: switch (change) {
614: case CMD_redraw: /* redraw screen */
615: reset_display();
616: break;
617:
618: case CMD_update: /* merely update display */
619: /*
620: * is the load average high?
621: */
622: if (system_info.load_avg[0] > LoadMax) {
623: /* yes, go home for visual feedback */
624: go_home();
625: fflush(stdout);
1.1 downsj 626: }
1.20 deraadt 627: break;
628:
629: case CMD_quit: /* quit */
630: quit(0);
631: break;
632:
633: case CMD_help1: /* help */
634: case CMD_help2:
635: clear();
636: show_help();
1.51 otto 637: anykey();
638: clear();
1.20 deraadt 639: break;
640:
641: case CMD_errors: /* show errors */
642: if (error_count() == 0) {
643: new_message(MT_standout,
644: " Currently no errors to report.");
1.51 otto 645: putr();
1.20 deraadt 646: no_command = Yes;
647: } else {
1.1 downsj 648: clear();
1.20 deraadt 649: show_errors();
1.51 otto 650: anykey();
651: clear();
1.20 deraadt 652: }
653: break;
654:
655: case CMD_number1: /* new number */
656: case CMD_number2:
657: new_message(MT_standout,
658: "Number of processes to show: ");
1.56 ! otto 659: newval = readline(tempbuf, 8, Yes);
1.20 deraadt 660: if (newval > -1) {
661: if (newval > max_topn) {
1.1 downsj 662: new_message(MT_standout | MT_delayed,
1.20 deraadt 663: " This terminal can only "
664: "display %d processes.",
665: max_topn);
1.51 otto 666: putr();
1.20 deraadt 667: }
668: if (newval == 0)
1.1 downsj 669: display_header(No);
1.20 deraadt 670: else if (newval > topn && topn == 0) {
1.1 downsj 671: /* redraw the header */
672: display_header(Yes);
673: }
1.20 deraadt 674: topn = newval;
675: }
676: break;
677:
678: case CMD_delay: /* new seconds delay */
679: new_message(MT_standout, "Seconds to delay: ");
1.56 ! otto 680: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
1.20 deraadt 681: char *endp;
1.56 ! otto 682: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 683:
684: if (newdelay >= 0 && newdelay < 1000000 &&
1.48 otto 685: *endp == '\0') {
1.16 hugh 686: delay = newdelay;
1.48 otto 687: } else {
688: new_message(MT_standout,
689: "Delay should be a non-negative number");
1.51 otto 690: putr();
1.48 otto 691: no_command = Yes;
692: }
693:
694: } else
695: clear_message();
1.20 deraadt 696: break;
697:
698: case CMD_displays: /* change display count */
699: new_message(MT_standout,
700: "Displays to show (currently %s): ",
701: displays == -1 ? "infinite" :
702: itoa(displays));
1.56 ! otto 703: if ((i = readline(tempbuf, 10, Yes)) > 0)
1.20 deraadt 704: displays = i;
705: else if (i == 0)
706: quit(0);
707:
708: clear_message();
709: break;
710:
711: case CMD_kill: /* kill program */
712: new_message(0, "kill ");
1.56 ! otto 713: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
! 714: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 715: new_message(MT_standout, "%s", errmsg);
1.51 otto 716: putr();
1.1 downsj 717: no_command = Yes;
718: }
1.20 deraadt 719: } else
720: clear_message();
721: break;
722:
723: case CMD_renice: /* renice program */
724: new_message(0, "renice ");
1.56 ! otto 725: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
! 726: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 727: new_message(MT_standout, "%s", errmsg);
1.51 otto 728: putr();
1.1 downsj 729: no_command = Yes;
730: }
1.20 deraadt 731: } else
732: clear_message();
733: break;
1.1 downsj 734:
1.20 deraadt 735: case CMD_idletog:
736: case CMD_idletog2:
737: ps.idle = !ps.idle;
738: new_message(MT_standout | MT_delayed,
739: " %sisplaying idle processes.",
740: ps.idle ? "D" : "Not d");
1.51 otto 741: putr();
1.20 deraadt 742: break;
1.1 downsj 743:
1.20 deraadt 744: case CMD_user:
745: new_message(MT_standout,
746: "Username to show: ");
1.56 ! otto 747: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
! 748: if (tempbuf[0] == '+' &&
! 749: tempbuf[1] == '\0') {
1.21 millert 750: ps.uid = (uid_t)-1;
1.56 ! otto 751: } else if ((uid = userid(tempbuf)) == (uid_t)-1) {
1.1 downsj 752: new_message(MT_standout,
1.56 ! otto 753: " %s: unknown user", tempbuf);
1.1 downsj 754: no_command = Yes;
1.20 deraadt 755: } else
1.21 millert 756: ps.uid = uid;
1.51 otto 757: putr();
1.20 deraadt 758: } else
759: clear_message();
760: break;
1.12 fgsch 761:
1.20 deraadt 762: case CMD_system:
763: ps.system = !ps.system;
1.35 otto 764: old_system = ps.system;
1.20 deraadt 765: new_message(MT_standout | MT_delayed,
766: " %sisplaying system processes.",
767: ps.system ? "D" : "Not d");
768: break;
769:
770: case CMD_order:
771: new_message(MT_standout,
772: "Order to sort: ");
1.56 ! otto 773: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
! 774: if ((i = string_index(tempbuf,
1.20 deraadt 775: statics.order_names)) == -1) {
776: new_message(MT_standout,
777: " %s: unrecognized sorting order",
1.56 ! otto 778: tempbuf);
1.20 deraadt 779: no_command = Yes;
780: } else
1.1 downsj 781: order_index = i;
1.51 otto 782: putr();
1.35 otto 783: } else
784: clear_message();
785: break;
786:
787: case CMD_pid:
1.37 jaredy 788: new_message(MT_standout, "Process ID to show: ");
1.56 ! otto 789: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
! 790: if (tempbuf[0] == '+' &&
! 791: tempbuf[1] == '\0') {
1.35 otto 792: ps.pid = (pid_t)-1;
793: ps.system = old_system;
794: } else {
795: unsigned long long num;
796: const char *errstr;
797:
1.56 ! otto 798: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 799: &errstr);
800: if (errstr != NULL || !find_pid(num)) {
801: new_message(MT_standout,
802: " %s: unknown pid",
1.56 ! otto 803: tempbuf);
1.35 otto 804: no_command = Yes;
805: } else {
806: if (ps.system == No)
807: old_system = No;
808: ps.pid = (pid_t)num;
809: ps.system = Yes;
810: }
811: }
1.51 otto 812: putr();
1.20 deraadt 813: } else
814: clear_message();
1.40 markus 815: break;
816:
817: case CMD_command:
818: show_args = (show_args == No) ? Yes : No;
1.41 tedu 819: break;
820:
821: case CMD_threads:
822: ps.threads = !ps.threads;
823: old_threads = ps.threads;
824: new_message(MT_standout | MT_delayed,
825: " %sisplaying threads.",
826: ps.threads ? "D" : "Not d");
1.45 otto 827: break;
828:
829: case CMD_grep:
830: new_message(MT_standout,
831: "Grep command name: ");
1.56 ! otto 832: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
1.45 otto 833: free(ps.command);
1.56 ! otto 834: if (tempbuf[0] == '+' &&
! 835: tempbuf[1] == '\0')
1.45 otto 836: ps.command = NULL;
837: else
1.56 ! otto 838: ps.command = strdup(tempbuf);
1.51 otto 839: putr();
840: } else
841: clear_message();
842: break;
843:
844: case CMD_hl:
1.53 otto 845: new_message(MT_standout, "Process ID to highlight: ");
1.56 ! otto 846: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
! 847: if (tempbuf[0] == '+' &&
! 848: tempbuf[1] == '\0') {
1.51 otto 849: hlpid = -1;
850: } else {
851: unsigned long long num;
852: const char *errstr;
853:
1.56 ! otto 854: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 855: &errstr);
856: if (errstr != NULL || !find_pid(num)) {
857: new_message(MT_standout,
858: " %s: unknown pid",
1.56 ! otto 859: tempbuf);
1.51 otto 860: no_command = Yes;
861: } else
862: hlpid = (pid_t)num;
863: }
864: putr();
1.45 otto 865: } else
866: clear_message();
1.20 deraadt 867: break;
1.1 downsj 868:
1.47 otto 869: case CMD_add:
870: ps.uid = (uid_t)-1; /* uid */
871: ps.pid = (pid_t)-1; /* pid */
872: ps.system = old_system;
873: ps.command = NULL; /* grep */
1.51 otto 874: hlpid = -1;
1.47 otto 875: break;
876:
1.20 deraadt 877: default:
878: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 879: putr();
1.1 downsj 880: }
881: }
882:
1.20 deraadt 883: /* flush out stuff that may have been written */
884: fflush(stdout);
885: return 0;
1.1 downsj 886: }
887:
1.20 deraadt 888:
1.1 downsj 889: /*
890: * reset_display() - reset all the display routine pointers so that entire
891: * screen will get redrawn.
892: */
1.19 pvalchev 893: static void
894: reset_display(void)
1.1 downsj 895: {
1.51 otto 896: if (smart_terminal) {
897: clear();
898: refresh();
899: }
1.1 downsj 900: }
901:
1.34 deraadt 902: /* ARGSUSED */
1.19 pvalchev 903: void
1.20 deraadt 904: leave(int signo)
1.1 downsj 905: {
1.20 deraadt 906: leaveflag = 1;
1.1 downsj 907: }
908:
1.34 deraadt 909: /* ARGSUSED */
1.19 pvalchev 910: void
1.20 deraadt 911: tstop(int signo)
1.1 downsj 912: {
1.20 deraadt 913: tstopflag = 1;
1.1 downsj 914: }
915:
1.34 deraadt 916: /* ARGSUSED */
1.19 pvalchev 917: void
1.51 otto 918: sigwinch(int signo)
1.1 downsj 919: {
1.20 deraadt 920: winchflag = 1;
1.1 downsj 921: }
922:
1.34 deraadt 923: /* ARGSUSED */
1.19 pvalchev 924: void
1.20 deraadt 925: onalrm(int signo)
1.1 downsj 926: {
927: }
928:
1.19 pvalchev 929: void
1.20 deraadt 930: quit(int ret)
1.1 downsj 931: {
1.20 deraadt 932: end_screen();
933: exit(ret);
1.1 downsj 934: }