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1.75 deraadt 1: /* $OpenBSD: top.c,v 1.74 2010/04/21 11:29:59 lum 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: double delay = Default_DELAY;
79: char *order_name = NULL;
80: int topn = Default_TOPN;
1.24 deraadt 81: int no_command = Yes;
1.35 otto 82: int old_system = No;
1.41 tedu 83: int old_threads = No;
1.40 markus 84: int show_args = No;
1.51 otto 85: pid_t hlpid = -1;
1.68 tedu 86: int combine_cpus = 0;
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
1.68 tedu 120: #define CMD_cpus 23
1.1 downsj 121:
1.27 deraadt 122: static void
1.20 deraadt 123: usage(void)
124: {
1.22 deraadt 125: extern char *__progname;
126:
1.20 deraadt 127: fprintf(stderr,
1.76 ! jsing 128: "usage: %s [-1bCHIinqSu] [-d count] [-g string] [-o field] "
1.50 jmc 129: "[-p pid] [-s time]\n\t[-U user] [number]\n",
1.22 deraadt 130: __progname);
1.20 deraadt 131: }
132:
1.27 deraadt 133: static void
1.20 deraadt 134: parseargs(int ac, char **av)
135: {
136: char *endp;
137: int i;
138:
1.76 ! jsing 139: while ((i = getopt(ac, av, "1SHICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 140: switch (i) {
1.68 tedu 141: case '1':
142: combine_cpus = 1;
143: break;
1.44 otto 144: case 'C':
145: show_args = Yes;
146: break;
1.20 deraadt 147: case 'u': /* toggle uid/username display */
148: do_unames = !do_unames;
149: break;
150:
151: case 'U': /* display only username's processes */
1.61 otto 152: if ((ps.uid = userid(optarg)) == (uid_t)-1)
153: new_message(MT_delayed, "%s: unknown user",
154: optarg);
1.20 deraadt 155: break;
1.1 downsj 156:
1.35 otto 157: case 'p': { /* display only process id */
158: const char *errstr;
159:
1.55 otto 160: i = strtonum(optarg, 0, INT_MAX, &errstr);
1.61 otto 161: if (errstr != NULL || !find_pid(i))
162: new_message(MT_delayed, "%s: unknown pid",
163: optarg);
164: else {
165: ps.pid = (pid_t)i;
166: ps.system = Yes;
1.35 otto 167: }
168: break;
169: }
170:
1.20 deraadt 171: case 'S': /* show system processes */
1.67 jmc 172: ps.system = !ps.system;
173: old_system = !old_system;
1.20 deraadt 174: break;
175:
1.76 ! jsing 176: case 'H': /* show threads */
1.41 tedu 177: ps.threads = Yes;
178: old_threads = Yes;
179: break;
180:
1.20 deraadt 181: case 'I': /* show idle processes */
182: ps.idle = !ps.idle;
183: break;
184:
185: case 'i': /* go interactive regardless */
186: interactive = Yes;
187: break;
188:
189: case 'n': /* batch, or non-interactive */
190: case 'b':
191: interactive = No;
192: break;
193:
194: case 'd': /* number of displays to show */
195: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
196: displays = i;
1.66 sthen 197: if (displays == 1)
198: interactive = No;
1.20 deraadt 199: break;
1.32 deraadt 200: }
1.60 otto 201: new_message(MT_delayed,
202: "warning: display count should be positive "
1.22 deraadt 203: "-- option ignored");
1.20 deraadt 204: break;
205:
206: case 's':
207: delay = strtod(optarg, &endp);
208:
1.59 otto 209: if (delay >= 0 && delay <= 1000000 && *endp == '\0')
1.20 deraadt 210: break;
211:
1.60 otto 212: new_message(MT_delayed,
213: "warning: delay should be a non-negative number"
1.22 deraadt 214: " -- using default");
1.20 deraadt 215: delay = Default_DELAY;
216: break;
217:
218: case 'q': /* be quick about it */
219: /* only allow this if user is really root */
220: if (getuid() == 0) {
221: /* be very un-nice! */
222: (void) nice(-20);
223: break;
224: }
1.60 otto 225: new_message(MT_delayed,
226: "warning: `-q' option can only be used by root");
1.20 deraadt 227: break;
228:
229: case 'o': /* select sort order */
230: order_name = optarg;
231: break;
232:
1.45 otto 233: case 'g': /* grep command name */
1.74 lum 234: free(ps.command);
1.75 deraadt 235: if ((ps.command = strdup(optarg)) == NULL)
1.74 lum 236: err(1, NULL);
1.45 otto 237: break;
238:
1.20 deraadt 239: default:
240: usage();
241: exit(1);
1.1 downsj 242: }
1.20 deraadt 243: }
1.1 downsj 244:
1.20 deraadt 245: /* get count of top processes to display (if any) */
246: if (optind < ac) {
247: if ((topn = atoiwi(av[optind])) == Invalid) {
1.60 otto 248: new_message(MT_delayed,
249: "warning: process count should "
1.49 otto 250: "be a non-negative number -- using default");
1.46 otto 251: topn = Infinity;
1.1 downsj 252: }
1.20 deraadt 253: #if Default_TOPN == Infinity
1.1 downsj 254: else
1.20 deraadt 255: topn_specified = Yes;
256: #endif
257: }
258: }
1.1 downsj 259:
1.20 deraadt 260: struct system_info system_info;
261: struct statics statics;
1.1 downsj 262:
1.20 deraadt 263: int
264: main(int argc, char *argv[])
265: {
266: char *uname_field = "USERNAME", *header_text, *env_top;
1.27 deraadt 267: char *(*get_userid)(uid_t) = username, **preset_argv, **av;
1.20 deraadt 268: int preset_argc = 0, ac, active_procs, i;
269: sigset_t mask, oldmask;
270: time_t curr_time;
271: caddr_t processes;
1.1 downsj 272:
1.20 deraadt 273: /* set the buffer for stdout */
274: #ifdef DEBUG
275: setbuffer(stdout, NULL, 0);
1.1 downsj 276: #else
1.20 deraadt 277: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 278: #endif
279:
1.20 deraadt 280: /* initialize some selection options */
281: ps.idle = Yes;
282: ps.system = No;
1.21 millert 283: ps.uid = (uid_t)-1;
1.35 otto 284: ps.pid = (pid_t)-1;
1.20 deraadt 285: ps.command = NULL;
286:
287: /* get preset options from the environment */
288: if ((env_top = getenv("TOP")) != NULL) {
289: av = preset_argv = argparse(env_top, &preset_argc);
290: ac = preset_argc;
291:
292: /*
293: * set the dummy argument to an explanatory message, in case
294: * getopt encounters a bad argument
295: */
296: preset_argv[0] = "while processing environment";
297: }
298: /* process options */
299: do {
300: /*
301: * if we're done doing the presets, then process the real
302: * arguments
303: */
304: if (preset_argc == 0) {
305: ac = argc;
306: av = argv;
307: optind = 1;
308: }
309: parseargs(ac, av);
310: i = preset_argc;
311: preset_argc = 0;
312: } while (i != 0);
313:
314: /* set constants for username/uid display correctly */
315: if (!do_unames) {
316: uname_field = " UID ";
1.26 millert 317: get_userid = format_uid;
1.20 deraadt 318: }
319: /* initialize the kernel memory interface */
320: if (machine_init(&statics) == -1)
1.1 downsj 321: exit(1);
1.20 deraadt 322:
323: /* determine sorting order index, if necessary */
324: if (order_name != NULL) {
325: if ((order_index = string_index(order_name,
326: statics.order_names)) == -1) {
1.69 tedu 327: char **pp, msg[512];
1.20 deraadt 328:
1.60 otto 329: snprintf(msg, sizeof(msg),
330: "'%s' is not a recognized sorting order",
1.22 deraadt 331: order_name);
1.60 otto 332: strlcat(msg, ". Valid are:", sizeof(msg));
1.20 deraadt 333: pp = statics.order_names;
1.60 otto 334: while (*pp != NULL) {
335: strlcat(msg, " ", sizeof(msg));
336: strlcat(msg, *pp++, sizeof(msg));
337: }
338: new_message(MT_delayed, msg);
1.62 otto 339: order_index = 0;
1.20 deraadt 340: }
1.1 downsj 341: }
342:
1.20 deraadt 343: /* initialize termcap */
344: init_termcap(interactive);
345:
346: /* get the string to use for the process area header */
347: header_text = format_header(uname_field);
348:
349: /* initialize display interface */
1.58 otto 350: max_topn = display_init(&statics);
351:
1.20 deraadt 352: /* print warning if user requested more processes than we can display */
1.60 otto 353: if (topn > max_topn)
354: new_message(MT_delayed,
355: "warning: this terminal can only display %d processes",
1.22 deraadt 356: max_topn);
1.20 deraadt 357: /* adjust for topn == Infinity */
358: if (topn == Infinity) {
359: /*
360: * For smart terminals, infinity really means everything that can
361: * be displayed, or Largest.
362: * On dumb terminals, infinity means every process in the system!
363: * We only really want to do that if it was explicitly specified.
364: * This is always the case when "Default_TOPN != Infinity". But if
365: * topn wasn't explicitly specified and we are on a dumb terminal
366: * and the default is Infinity, then (and only then) we use
367: * "Nominal_TOPN" instead.
368: */
1.1 downsj 369: #if Default_TOPN == Infinity
1.20 deraadt 370: topn = smart_terminal ? Largest :
371: (topn_specified ? Largest : Nominal_TOPN);
372: #else
373: topn = Largest;
1.1 downsj 374: #endif
375: }
1.20 deraadt 376: /* set header display accordingly */
377: display_header(topn > 0);
1.1 downsj 378:
1.20 deraadt 379: /* determine interactive state */
380: if (interactive == Maybe)
381: interactive = smart_terminal;
1.1 downsj 382:
1.20 deraadt 383: /* if # of displays not specified, fill it in */
384: if (displays == 0)
385: displays = smart_terminal ? Infinity : 1;
1.1 downsj 386:
387: /*
1.20 deraadt 388: * block interrupt signals while setting up the screen and the
389: * handlers
1.1 downsj 390: */
1.20 deraadt 391: sigemptyset(&mask);
392: sigaddset(&mask, SIGINT);
393: sigaddset(&mask, SIGQUIT);
394: sigaddset(&mask, SIGTSTP);
395: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.57 otto 396: if (interactive)
397: init_screen();
1.20 deraadt 398: (void) signal(SIGINT, leave);
1.30 deraadt 399: siginterrupt(SIGINT, 1);
1.20 deraadt 400: (void) signal(SIGQUIT, leave);
401: (void) signal(SIGTSTP, tstop);
1.51 otto 402: if (smart_terminal)
403: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 404: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.7 deraadt 405: restart:
1.1 downsj 406:
1.20 deraadt 407: /*
408: * main loop -- repeat while display count is positive or while it
409: * indicates infinity (by being -1)
410: */
411: while ((displays == -1) || (displays-- > 0)) {
1.70 otto 412: if (winchflag) {
413: /*
414: * reascertain the screen
415: * dimensions
416: */
417: get_screensize();
418: resizeterm(screen_length, screen_width + 1);
419:
420: /* tell display to resize */
421: max_topn = display_resize();
422:
423: /* reset the signal handler */
424: (void) signal(SIGWINCH, sigwinch);
425:
426: reset_display();
427: winchflag = 0;
428: }
429:
1.20 deraadt 430: /* get the current stats */
431: get_system_info(&system_info);
432:
433: /* get the current set of processes */
434: processes = get_process_info(&system_info, &ps,
435: proc_compares[order_index]);
436:
437: /* display the load averages */
1.51 otto 438: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 439:
440: /* display the current time */
441: /* this method of getting the time SHOULD be fairly portable */
442: time(&curr_time);
443: i_timeofday(&curr_time);
444:
445: /* display process state breakdown */
1.51 otto 446: i_procstates(system_info.p_total, system_info.procstates);
1.20 deraadt 447:
448: /* display the cpu state percentage breakdown */
1.51 otto 449: i_cpustates(system_info.cpustates);
1.1 downsj 450:
1.20 deraadt 451: /* display memory stats */
1.51 otto 452: i_memory(system_info.memory);
1.1 downsj 453:
1.20 deraadt 454: /* handle message area */
1.51 otto 455: i_message();
1.1 downsj 456:
1.20 deraadt 457: /* update the header area */
1.51 otto 458: i_header(header_text);
1.20 deraadt 459:
1.63 otto 460: if (topn == Infinity) {
461: #if Default_TOPN == Infinity
462: topn = smart_terminal ? Largest :
463: (topn_specified ? Largest : Nominal_TOPN);
464: #else
465: topn = Largest;
466: #endif
467: }
468:
1.20 deraadt 469: if (topn > 0) {
470: /* determine number of processes to actually display */
471: /*
472: * this number will be the smallest of: active
473: * processes, number user requested, number current
474: * screen accommodates
475: */
476: active_procs = system_info.p_active;
477: if (active_procs > topn)
478: active_procs = topn;
479: if (active_procs > max_topn)
480: active_procs = max_topn;
481: /* now show the top "n" processes. */
1.51 otto 482: for (i = 0; i < active_procs; i++) {
483: pid_t pid;
484: char * s;
485:
486: s = format_next_process(processes, get_userid,
487: &pid);
488: i_process(i, s, pid == hlpid);
489: }
1.54 otto 490: }
1.20 deraadt 491:
492: /* do end-screen processing */
1.52 deraadt 493: u_endscreen();
1.20 deraadt 494:
495: /* now, flush the output buffer */
496: fflush(stdout);
497:
1.51 otto 498: if (smart_terminal)
499: refresh();
500:
1.20 deraadt 501: /* only do the rest if we have more displays to show */
502: if (displays) {
503: /* switch out for new display on smart terminals */
504: no_command = Yes;
505: if (!interactive) {
506: /* set up alarm */
507: (void) signal(SIGALRM, onalrm);
508: (void) alarm((unsigned) delay);
509:
510: /* wait for the rest of it .... */
511: pause();
1.42 otto 512: if (leaveflag)
513: exit(0);
514: if (tstopflag) {
515: (void) signal(SIGTSTP, SIG_DFL);
516: (void) kill(0, SIGTSTP);
517: /* reset the signal handler */
518: (void) signal(SIGTSTP, tstop);
519: tstopflag = 0;
520: }
1.20 deraadt 521: } else {
522: while (no_command)
523: if (rundisplay())
524: goto restart;
525: }
526: }
527: }
1.1 downsj 528:
1.20 deraadt 529: quit(0);
530: /* NOTREACHED */
531: return (0);
532: }
1.7 deraadt 533:
1.20 deraadt 534: int
535: rundisplay(void)
536: {
1.72 lum 537: static char tempbuf[TEMPBUFSIZE];
1.20 deraadt 538: sigset_t mask;
539: char ch, *iptr;
540: int change, i;
1.28 deraadt 541: struct pollfd pfd[1];
1.21 millert 542: uid_t uid;
1.76 ! jsing 543: static char command_chars[] = "\f qh?en#sdkriIuSopCHg+P1";
1.7 deraadt 544:
1.20 deraadt 545: /*
546: * assume valid command unless told
547: * otherwise
548: */
549: no_command = No;
1.7 deraadt 550:
1.20 deraadt 551: /*
552: * set up arguments for select with
553: * timeout
554: */
1.28 deraadt 555: pfd[0].fd = STDIN_FILENO;
556: pfd[0].events = POLLIN;
1.20 deraadt 557:
1.42 otto 558: if (leaveflag)
559: quit(0);
1.20 deraadt 560: if (tstopflag) {
561: /* move to the lower left */
562: end_screen();
563: fflush(stdout);
564:
565: /*
566: * default the signal handler
567: * action
568: */
569: (void) signal(SIGTSTP, SIG_DFL);
570:
571: /*
572: * unblock the signal and
573: * send ourselves one
574: */
575: sigemptyset(&mask);
576: sigaddset(&mask, SIGTSTP);
577: sigprocmask(SIG_UNBLOCK, &mask, NULL);
578: (void) kill(0, SIGTSTP);
579:
580: /* reset the signal handler */
581: (void) signal(SIGTSTP, tstop);
582:
583: /* reinit screen */
584: reinit_screen();
585: reset_display();
586: tstopflag = 0;
587: return 1;
588: }
589: /*
590: * wait for either input or the end
591: * of the delay period
592: */
1.33 deraadt 593: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 594: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 595: char *errmsg;
1.30 deraadt 596: ssize_t len;
1.20 deraadt 597:
598: clear_message();
599:
600: /*
601: * now read it and convert to
602: * command strchr
603: */
1.30 deraadt 604: while (1) {
1.36 deraadt 605: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 606: if (len == -1 && errno == EINTR)
607: continue;
608: if (len == 0)
609: exit(1);
610: break;
611: }
1.20 deraadt 612: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 613: /* illegal command */
614: new_message(MT_standout, " Command not understood");
1.51 otto 615: putr();
1.1 downsj 616: no_command = Yes;
1.20 deraadt 617: fflush(stdout);
618: return (0);
619: }
620:
621: change = iptr - command_chars;
622:
623: switch (change) {
624: case CMD_redraw: /* redraw screen */
625: reset_display();
626: break;
627:
628: case CMD_update: /* merely update display */
629: /*
630: * is the load average high?
631: */
632: if (system_info.load_avg[0] > LoadMax) {
633: /* yes, go home for visual feedback */
634: go_home();
635: fflush(stdout);
1.1 downsj 636: }
1.20 deraadt 637: break;
638:
639: case CMD_quit: /* quit */
640: quit(0);
641: break;
642:
643: case CMD_help1: /* help */
644: case CMD_help2:
645: clear();
646: show_help();
1.51 otto 647: anykey();
648: clear();
1.20 deraadt 649: break;
650:
651: case CMD_errors: /* show errors */
652: if (error_count() == 0) {
653: new_message(MT_standout,
654: " Currently no errors to report.");
1.51 otto 655: putr();
1.20 deraadt 656: no_command = Yes;
657: } else {
1.1 downsj 658: clear();
1.20 deraadt 659: show_errors();
1.51 otto 660: anykey();
661: clear();
1.20 deraadt 662: }
663: break;
664:
665: case CMD_number1: /* new number */
666: case CMD_number2:
667: new_message(MT_standout,
668: "Number of processes to show: ");
1.63 otto 669:
670: if (readline(tempbuf, 8) > 0) {
1.73 lum 671: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 672: if (i > max_topn) {
1.65 otto 673: new_message(MT_standout |
674: MT_delayed,
1.63 otto 675: " This terminal can only "
676: "display %d processes.",
677: max_topn);
678: putr();
1.65 otto 679: }
680: if ((i > topn || i == Infinity)
1.64 otto 681: && topn == 0) {
1.63 otto 682: /* redraw the header */
683: display_header(Yes);
1.65 otto 684: } else if (i == 0)
685: display_header(No);
1.63 otto 686: topn = i;
687: } else {
688: new_message(MT_standout,
1.65 otto 689: "Processes should be a "
690: "non-negative number");
1.63 otto 691: putr();
692: no_command = Yes;
1.20 deraadt 693: }
1.63 otto 694: } else
695: clear_message();
1.20 deraadt 696: break;
697:
698: case CMD_delay: /* new seconds delay */
699: new_message(MT_standout, "Seconds to delay: ");
1.63 otto 700: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.20 deraadt 701: char *endp;
1.56 otto 702: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 703:
1.71 lum 704: if (newdelay >= 0 && newdelay <= 1000000 &&
1.48 otto 705: *endp == '\0') {
1.16 hugh 706: delay = newdelay;
1.48 otto 707: } else {
708: new_message(MT_standout,
709: "Delay should be a non-negative number");
1.51 otto 710: putr();
1.48 otto 711: no_command = Yes;
712: }
713:
714: } else
715: clear_message();
1.20 deraadt 716: break;
717:
718: case CMD_displays: /* change display count */
719: new_message(MT_standout,
720: "Displays to show (currently %s): ",
721: displays == -1 ? "infinite" :
722: itoa(displays));
723:
1.63 otto 724: if (readline(tempbuf, 10) > 0) {
1.73 lum 725: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 726: if (i == 0)
727: quit(0);
728: displays = i;
729: } else {
730: new_message(MT_standout,
731: "Displays should be a non-negative number");
732: putr();
733: no_command = Yes;
734: }
735: } else
736: clear_message();
1.20 deraadt 737: break;
738:
739: case CMD_kill: /* kill program */
740: new_message(0, "kill ");
1.63 otto 741: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 742: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 743: new_message(MT_standout, "%s", errmsg);
1.51 otto 744: putr();
1.1 downsj 745: no_command = Yes;
746: }
1.20 deraadt 747: } else
748: clear_message();
749: break;
750:
751: case CMD_renice: /* renice program */
752: new_message(0, "renice ");
1.63 otto 753: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 754: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 755: new_message(MT_standout, "%s", errmsg);
1.51 otto 756: putr();
1.1 downsj 757: no_command = Yes;
758: }
1.20 deraadt 759: } else
760: clear_message();
761: break;
1.1 downsj 762:
1.20 deraadt 763: case CMD_idletog:
764: case CMD_idletog2:
765: ps.idle = !ps.idle;
766: new_message(MT_standout | MT_delayed,
767: " %sisplaying idle processes.",
768: ps.idle ? "D" : "Not d");
1.51 otto 769: putr();
1.20 deraadt 770: break;
1.1 downsj 771:
1.20 deraadt 772: case CMD_user:
773: new_message(MT_standout,
774: "Username to show: ");
1.63 otto 775: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 776: if (tempbuf[0] == '+' &&
777: tempbuf[1] == '\0') {
1.21 millert 778: ps.uid = (uid_t)-1;
1.56 otto 779: } else if ((uid = userid(tempbuf)) == (uid_t)-1) {
1.1 downsj 780: new_message(MT_standout,
1.56 otto 781: " %s: unknown user", tempbuf);
1.1 downsj 782: no_command = Yes;
1.20 deraadt 783: } else
1.21 millert 784: ps.uid = uid;
1.51 otto 785: putr();
1.20 deraadt 786: } else
787: clear_message();
788: break;
1.12 fgsch 789:
1.20 deraadt 790: case CMD_system:
791: ps.system = !ps.system;
1.35 otto 792: old_system = ps.system;
1.20 deraadt 793: new_message(MT_standout | MT_delayed,
794: " %sisplaying system processes.",
795: ps.system ? "D" : "Not d");
796: break;
797:
798: case CMD_order:
799: new_message(MT_standout,
800: "Order to sort: ");
1.63 otto 801: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 802: if ((i = string_index(tempbuf,
1.20 deraadt 803: statics.order_names)) == -1) {
804: new_message(MT_standout,
805: " %s: unrecognized sorting order",
1.56 otto 806: tempbuf);
1.20 deraadt 807: no_command = Yes;
808: } else
1.1 downsj 809: order_index = i;
1.51 otto 810: putr();
1.35 otto 811: } else
812: clear_message();
813: break;
814:
815: case CMD_pid:
1.37 jaredy 816: new_message(MT_standout, "Process ID to show: ");
1.63 otto 817: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 818: if (tempbuf[0] == '+' &&
819: tempbuf[1] == '\0') {
1.35 otto 820: ps.pid = (pid_t)-1;
821: ps.system = old_system;
822: } else {
823: unsigned long long num;
824: const char *errstr;
825:
1.56 otto 826: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 827: &errstr);
828: if (errstr != NULL || !find_pid(num)) {
829: new_message(MT_standout,
830: " %s: unknown pid",
1.56 otto 831: tempbuf);
1.35 otto 832: no_command = Yes;
833: } else {
834: if (ps.system == No)
835: old_system = No;
836: ps.pid = (pid_t)num;
837: ps.system = Yes;
838: }
839: }
1.51 otto 840: putr();
1.20 deraadt 841: } else
842: clear_message();
1.40 markus 843: break;
844:
845: case CMD_command:
846: show_args = (show_args == No) ? Yes : No;
1.41 tedu 847: break;
848:
849: case CMD_threads:
850: ps.threads = !ps.threads;
851: old_threads = ps.threads;
852: new_message(MT_standout | MT_delayed,
853: " %sisplaying threads.",
854: ps.threads ? "D" : "Not d");
1.45 otto 855: break;
856:
857: case CMD_grep:
858: new_message(MT_standout,
859: "Grep command name: ");
1.63 otto 860: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.45 otto 861: free(ps.command);
1.56 otto 862: if (tempbuf[0] == '+' &&
863: tempbuf[1] == '\0')
1.45 otto 864: ps.command = NULL;
865: else
1.75 deraadt 866: if ((ps.command = strdup(tempbuf)) ==
867: NULL)
1.74 lum 868: err(1, NULL);
1.51 otto 869: putr();
870: } else
871: clear_message();
872: break;
873:
874: case CMD_hl:
1.53 otto 875: new_message(MT_standout, "Process ID to highlight: ");
1.63 otto 876: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 877: if (tempbuf[0] == '+' &&
878: tempbuf[1] == '\0') {
1.51 otto 879: hlpid = -1;
880: } else {
881: unsigned long long num;
882: const char *errstr;
883:
1.56 otto 884: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 885: &errstr);
886: if (errstr != NULL || !find_pid(num)) {
887: new_message(MT_standout,
888: " %s: unknown pid",
1.56 otto 889: tempbuf);
1.51 otto 890: no_command = Yes;
891: } else
892: hlpid = (pid_t)num;
893: }
894: putr();
1.45 otto 895: } else
896: clear_message();
1.20 deraadt 897: break;
1.1 downsj 898:
1.47 otto 899: case CMD_add:
900: ps.uid = (uid_t)-1; /* uid */
901: ps.pid = (pid_t)-1; /* pid */
902: ps.system = old_system;
903: ps.command = NULL; /* grep */
1.51 otto 904: hlpid = -1;
1.47 otto 905: break;
1.68 tedu 906: case CMD_cpus:
907: combine_cpus = !combine_cpus;
908: max_topn = display_resize();
909: reset_display();
910: break;
1.20 deraadt 911: default:
912: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 913: putr();
1.1 downsj 914: }
915: }
916:
1.20 deraadt 917: /* flush out stuff that may have been written */
918: fflush(stdout);
919: return 0;
1.1 downsj 920: }
921:
1.20 deraadt 922:
1.1 downsj 923: /*
924: * reset_display() - reset all the display routine pointers so that entire
925: * screen will get redrawn.
926: */
1.19 pvalchev 927: static void
928: reset_display(void)
1.1 downsj 929: {
1.51 otto 930: if (smart_terminal) {
931: clear();
932: refresh();
933: }
1.1 downsj 934: }
935:
1.34 deraadt 936: /* ARGSUSED */
1.19 pvalchev 937: void
1.20 deraadt 938: leave(int signo)
1.1 downsj 939: {
1.20 deraadt 940: leaveflag = 1;
1.1 downsj 941: }
942:
1.34 deraadt 943: /* ARGSUSED */
1.19 pvalchev 944: void
1.20 deraadt 945: tstop(int signo)
1.1 downsj 946: {
1.20 deraadt 947: tstopflag = 1;
1.1 downsj 948: }
949:
1.34 deraadt 950: /* ARGSUSED */
1.19 pvalchev 951: void
1.51 otto 952: sigwinch(int signo)
1.1 downsj 953: {
1.20 deraadt 954: winchflag = 1;
1.1 downsj 955: }
956:
1.34 deraadt 957: /* ARGSUSED */
1.19 pvalchev 958: void
1.20 deraadt 959: onalrm(int signo)
1.1 downsj 960: {
961: }
962:
1.19 pvalchev 963: void
1.20 deraadt 964: quit(int ret)
1.1 downsj 965: {
1.20 deraadt 966: end_screen();
967: exit(ret);
1.1 downsj 968: }