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1.58 ! otto 1: /* $OpenBSD: top.c,v 1.57 2007/10/04 07:47:53 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 */
1.58 ! otto 340: max_topn = display_init(&statics);
! 341:
1.20 deraadt 342: /* print warning if user requested more processes than we can display */
343: if (topn > max_topn) {
1.22 deraadt 344: warnx("warning: this terminal can only display %d processes",
345: max_topn);
1.1 downsj 346: warnings++;
1.20 deraadt 347: }
348: /* adjust for topn == Infinity */
349: if (topn == Infinity) {
350: /*
351: * For smart terminals, infinity really means everything that can
352: * be displayed, or Largest.
353: * On dumb terminals, infinity means every process in the system!
354: * We only really want to do that if it was explicitly specified.
355: * This is always the case when "Default_TOPN != Infinity". But if
356: * topn wasn't explicitly specified and we are on a dumb terminal
357: * and the default is Infinity, then (and only then) we use
358: * "Nominal_TOPN" instead.
359: */
1.1 downsj 360: #if Default_TOPN == Infinity
1.20 deraadt 361: topn = smart_terminal ? Largest :
362: (topn_specified ? Largest : Nominal_TOPN);
363: #else
364: topn = Largest;
1.1 downsj 365: #endif
366: }
1.20 deraadt 367: /* set header display accordingly */
368: display_header(topn > 0);
1.1 downsj 369:
1.20 deraadt 370: /* determine interactive state */
371: if (interactive == Maybe)
372: interactive = smart_terminal;
1.1 downsj 373:
1.20 deraadt 374: /* if # of displays not specified, fill it in */
375: if (displays == 0)
376: displays = smart_terminal ? Infinity : 1;
1.1 downsj 377:
378: /*
1.20 deraadt 379: * block interrupt signals while setting up the screen and the
380: * handlers
1.1 downsj 381: */
1.20 deraadt 382: sigemptyset(&mask);
383: sigaddset(&mask, SIGINT);
384: sigaddset(&mask, SIGQUIT);
385: sigaddset(&mask, SIGTSTP);
386: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.57 otto 387: if (interactive)
388: init_screen();
1.20 deraadt 389: (void) signal(SIGINT, leave);
1.30 deraadt 390: siginterrupt(SIGINT, 1);
1.20 deraadt 391: (void) signal(SIGQUIT, leave);
392: (void) signal(SIGTSTP, tstop);
1.51 otto 393: if (smart_terminal)
394: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 395: sigprocmask(SIG_SETMASK, &oldmask, NULL);
396: if (warnings) {
397: fputs("....", stderr);
398: fflush(stderr); /* why must I do this? */
1.32 deraadt 399: sleep((unsigned)(3 * warnings));
1.20 deraadt 400: fputc('\n', stderr);
401: }
1.7 deraadt 402: restart:
1.1 downsj 403:
1.20 deraadt 404: /*
405: * main loop -- repeat while display count is positive or while it
406: * indicates infinity (by being -1)
407: */
408: while ((displays == -1) || (displays-- > 0)) {
409: /* get the current stats */
410: get_system_info(&system_info);
411:
412: /* get the current set of processes */
413: processes = get_process_info(&system_info, &ps,
414: proc_compares[order_index]);
415:
416: /* display the load averages */
1.51 otto 417: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 418:
419: /* display the current time */
420: /* this method of getting the time SHOULD be fairly portable */
421: time(&curr_time);
422: i_timeofday(&curr_time);
423:
424: /* display process state breakdown */
1.51 otto 425: i_procstates(system_info.p_total, system_info.procstates);
1.20 deraadt 426:
427: /* display the cpu state percentage breakdown */
1.51 otto 428: i_cpustates(system_info.cpustates);
1.1 downsj 429:
1.20 deraadt 430: /* display memory stats */
1.51 otto 431: i_memory(system_info.memory);
1.1 downsj 432:
1.20 deraadt 433: /* handle message area */
1.51 otto 434: i_message();
1.1 downsj 435:
1.20 deraadt 436: /* update the header area */
1.51 otto 437: i_header(header_text);
1.20 deraadt 438:
439: if (topn > 0) {
440: /* determine number of processes to actually display */
441: /*
442: * this number will be the smallest of: active
443: * processes, number user requested, number current
444: * screen accommodates
445: */
446: active_procs = system_info.p_active;
447: if (active_procs > topn)
448: active_procs = topn;
449: if (active_procs > max_topn)
450: active_procs = max_topn;
451: /* now show the top "n" processes. */
1.51 otto 452: for (i = 0; i < active_procs; i++) {
453: pid_t pid;
454: char * s;
455:
456: s = format_next_process(processes, get_userid,
457: &pid);
458: i_process(i, s, pid == hlpid);
459: }
1.54 otto 460: }
1.20 deraadt 461:
462: /* do end-screen processing */
1.52 deraadt 463: u_endscreen();
1.20 deraadt 464:
465: /* now, flush the output buffer */
466: fflush(stdout);
467:
1.51 otto 468: if (smart_terminal)
469: refresh();
470:
1.20 deraadt 471: /* only do the rest if we have more displays to show */
472: if (displays) {
473: /* switch out for new display on smart terminals */
474: no_command = Yes;
475: if (!interactive) {
476: /* set up alarm */
477: (void) signal(SIGALRM, onalrm);
478: (void) alarm((unsigned) delay);
479:
480: /* wait for the rest of it .... */
481: pause();
1.42 otto 482: if (leaveflag)
483: exit(0);
484: if (tstopflag) {
485: (void) signal(SIGTSTP, SIG_DFL);
486: (void) kill(0, SIGTSTP);
487: /* reset the signal handler */
488: (void) signal(SIGTSTP, tstop);
489: tstopflag = 0;
490: }
1.20 deraadt 491: } else {
492: while (no_command)
493: if (rundisplay())
494: goto restart;
495: }
496: }
497: }
1.1 downsj 498:
1.20 deraadt 499: quit(0);
500: /* NOTREACHED */
501: return (0);
502: }
1.7 deraadt 503:
1.20 deraadt 504: int
505: rundisplay(void)
506: {
1.56 otto 507: static char tempbuf[50];
1.20 deraadt 508: sigset_t mask;
509: char ch, *iptr;
510: int change, i;
1.28 deraadt 511: struct pollfd pfd[1];
1.21 millert 512: uid_t uid;
1.51 otto 513: static char command_chars[] = "\f qh?en#sdkriIuSopCTg+P";
1.7 deraadt 514:
1.20 deraadt 515: /*
516: * assume valid command unless told
517: * otherwise
518: */
519: no_command = No;
1.7 deraadt 520:
1.20 deraadt 521: /*
522: * set up arguments for select with
523: * timeout
524: */
1.28 deraadt 525: pfd[0].fd = STDIN_FILENO;
526: pfd[0].events = POLLIN;
1.20 deraadt 527:
1.42 otto 528: if (leaveflag)
529: quit(0);
1.20 deraadt 530: if (tstopflag) {
531: /* move to the lower left */
532: end_screen();
533: fflush(stdout);
534:
535: /*
536: * default the signal handler
537: * action
538: */
539: (void) signal(SIGTSTP, SIG_DFL);
540:
541: /*
542: * unblock the signal and
543: * send ourselves one
544: */
545: sigemptyset(&mask);
546: sigaddset(&mask, SIGTSTP);
547: sigprocmask(SIG_UNBLOCK, &mask, NULL);
548: (void) kill(0, SIGTSTP);
549:
550: /* reset the signal handler */
551: (void) signal(SIGTSTP, tstop);
552:
553: /* reinit screen */
554: reinit_screen();
555: reset_display();
556: tstopflag = 0;
557: return 1;
558: }
559: if (winchflag) {
560: /*
561: * reascertain the screen
562: * dimensions
563: */
564: get_screensize();
1.51 otto 565: resizeterm(screen_length, screen_width + 1);
1.20 deraadt 566:
567: /* tell display to resize */
568: max_topn = display_resize();
569:
570: /* reset the signal handler */
1.51 otto 571: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 572:
573: reset_display();
574: winchflag = 0;
575: return 1;
576: }
577: /*
578: * wait for either input or the end
579: * of the delay period
580: */
1.33 deraadt 581: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 582: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 583: char *errmsg;
1.30 deraadt 584: ssize_t len;
1.20 deraadt 585: int newval;
586:
587: clear_message();
588:
589: /*
590: * now read it and convert to
591: * command strchr
592: */
1.30 deraadt 593: while (1) {
1.36 deraadt 594: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 595: if (len == -1 && errno == EINTR)
596: continue;
597: if (len == 0)
598: exit(1);
599: break;
600: }
1.20 deraadt 601: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 602: /* illegal command */
603: new_message(MT_standout, " Command not understood");
1.51 otto 604: putr();
1.1 downsj 605: no_command = Yes;
1.20 deraadt 606: fflush(stdout);
607: return (0);
608: }
609:
610: change = iptr - command_chars;
611:
612: switch (change) {
613: case CMD_redraw: /* redraw screen */
614: reset_display();
615: break;
616:
617: case CMD_update: /* merely update display */
618: /*
619: * is the load average high?
620: */
621: if (system_info.load_avg[0] > LoadMax) {
622: /* yes, go home for visual feedback */
623: go_home();
624: fflush(stdout);
1.1 downsj 625: }
1.20 deraadt 626: break;
627:
628: case CMD_quit: /* quit */
629: quit(0);
630: break;
631:
632: case CMD_help1: /* help */
633: case CMD_help2:
634: clear();
635: show_help();
1.51 otto 636: anykey();
637: clear();
1.20 deraadt 638: break;
639:
640: case CMD_errors: /* show errors */
641: if (error_count() == 0) {
642: new_message(MT_standout,
643: " Currently no errors to report.");
1.51 otto 644: putr();
1.20 deraadt 645: no_command = Yes;
646: } else {
1.1 downsj 647: clear();
1.20 deraadt 648: show_errors();
1.51 otto 649: anykey();
650: clear();
1.20 deraadt 651: }
652: break;
653:
654: case CMD_number1: /* new number */
655: case CMD_number2:
656: new_message(MT_standout,
657: "Number of processes to show: ");
1.56 otto 658: newval = readline(tempbuf, 8, Yes);
1.20 deraadt 659: if (newval > -1) {
660: if (newval > max_topn) {
1.1 downsj 661: new_message(MT_standout | MT_delayed,
1.20 deraadt 662: " This terminal can only "
663: "display %d processes.",
664: max_topn);
1.51 otto 665: putr();
1.20 deraadt 666: }
667: if (newval == 0)
1.1 downsj 668: display_header(No);
1.20 deraadt 669: else if (newval > topn && topn == 0) {
1.1 downsj 670: /* redraw the header */
671: display_header(Yes);
672: }
1.20 deraadt 673: topn = newval;
674: }
675: break;
676:
677: case CMD_delay: /* new seconds delay */
678: new_message(MT_standout, "Seconds to delay: ");
1.56 otto 679: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
1.20 deraadt 680: char *endp;
1.56 otto 681: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 682:
683: if (newdelay >= 0 && newdelay < 1000000 &&
1.48 otto 684: *endp == '\0') {
1.16 hugh 685: delay = newdelay;
1.48 otto 686: } else {
687: new_message(MT_standout,
688: "Delay should be a non-negative number");
1.51 otto 689: putr();
1.48 otto 690: no_command = Yes;
691: }
692:
693: } else
694: clear_message();
1.20 deraadt 695: break;
696:
697: case CMD_displays: /* change display count */
698: new_message(MT_standout,
699: "Displays to show (currently %s): ",
700: displays == -1 ? "infinite" :
701: itoa(displays));
1.56 otto 702: if ((i = readline(tempbuf, 10, Yes)) > 0)
1.20 deraadt 703: displays = i;
704: else if (i == 0)
705: quit(0);
706:
707: clear_message();
708: break;
709:
710: case CMD_kill: /* kill program */
711: new_message(0, "kill ");
1.56 otto 712: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
713: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 714: new_message(MT_standout, "%s", errmsg);
1.51 otto 715: putr();
1.1 downsj 716: no_command = Yes;
717: }
1.20 deraadt 718: } else
719: clear_message();
720: break;
721:
722: case CMD_renice: /* renice program */
723: new_message(0, "renice ");
1.56 otto 724: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
725: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 726: new_message(MT_standout, "%s", errmsg);
1.51 otto 727: putr();
1.1 downsj 728: no_command = Yes;
729: }
1.20 deraadt 730: } else
731: clear_message();
732: break;
1.1 downsj 733:
1.20 deraadt 734: case CMD_idletog:
735: case CMD_idletog2:
736: ps.idle = !ps.idle;
737: new_message(MT_standout | MT_delayed,
738: " %sisplaying idle processes.",
739: ps.idle ? "D" : "Not d");
1.51 otto 740: putr();
1.20 deraadt 741: break;
1.1 downsj 742:
1.20 deraadt 743: case CMD_user:
744: new_message(MT_standout,
745: "Username to show: ");
1.56 otto 746: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
747: if (tempbuf[0] == '+' &&
748: tempbuf[1] == '\0') {
1.21 millert 749: ps.uid = (uid_t)-1;
1.56 otto 750: } else if ((uid = userid(tempbuf)) == (uid_t)-1) {
1.1 downsj 751: new_message(MT_standout,
1.56 otto 752: " %s: unknown user", tempbuf);
1.1 downsj 753: no_command = Yes;
1.20 deraadt 754: } else
1.21 millert 755: ps.uid = uid;
1.51 otto 756: putr();
1.20 deraadt 757: } else
758: clear_message();
759: break;
1.12 fgsch 760:
1.20 deraadt 761: case CMD_system:
762: ps.system = !ps.system;
1.35 otto 763: old_system = ps.system;
1.20 deraadt 764: new_message(MT_standout | MT_delayed,
765: " %sisplaying system processes.",
766: ps.system ? "D" : "Not d");
767: break;
768:
769: case CMD_order:
770: new_message(MT_standout,
771: "Order to sort: ");
1.56 otto 772: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
773: if ((i = string_index(tempbuf,
1.20 deraadt 774: statics.order_names)) == -1) {
775: new_message(MT_standout,
776: " %s: unrecognized sorting order",
1.56 otto 777: tempbuf);
1.20 deraadt 778: no_command = Yes;
779: } else
1.1 downsj 780: order_index = i;
1.51 otto 781: putr();
1.35 otto 782: } else
783: clear_message();
784: break;
785:
786: case CMD_pid:
1.37 jaredy 787: new_message(MT_standout, "Process ID to show: ");
1.56 otto 788: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
789: if (tempbuf[0] == '+' &&
790: tempbuf[1] == '\0') {
1.35 otto 791: ps.pid = (pid_t)-1;
792: ps.system = old_system;
793: } else {
794: unsigned long long num;
795: const char *errstr;
796:
1.56 otto 797: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 798: &errstr);
799: if (errstr != NULL || !find_pid(num)) {
800: new_message(MT_standout,
801: " %s: unknown pid",
1.56 otto 802: tempbuf);
1.35 otto 803: no_command = Yes;
804: } else {
805: if (ps.system == No)
806: old_system = No;
807: ps.pid = (pid_t)num;
808: ps.system = Yes;
809: }
810: }
1.51 otto 811: putr();
1.20 deraadt 812: } else
813: clear_message();
1.40 markus 814: break;
815:
816: case CMD_command:
817: show_args = (show_args == No) ? Yes : No;
1.41 tedu 818: break;
819:
820: case CMD_threads:
821: ps.threads = !ps.threads;
822: old_threads = ps.threads;
823: new_message(MT_standout | MT_delayed,
824: " %sisplaying threads.",
825: ps.threads ? "D" : "Not d");
1.45 otto 826: break;
827:
828: case CMD_grep:
829: new_message(MT_standout,
830: "Grep command name: ");
1.56 otto 831: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
1.45 otto 832: free(ps.command);
1.56 otto 833: if (tempbuf[0] == '+' &&
834: tempbuf[1] == '\0')
1.45 otto 835: ps.command = NULL;
836: else
1.56 otto 837: ps.command = strdup(tempbuf);
1.51 otto 838: putr();
839: } else
840: clear_message();
841: break;
842:
843: case CMD_hl:
1.53 otto 844: new_message(MT_standout, "Process ID to highlight: ");
1.56 otto 845: if (readline(tempbuf, sizeof(tempbuf), No) > 0) {
846: if (tempbuf[0] == '+' &&
847: tempbuf[1] == '\0') {
1.51 otto 848: hlpid = -1;
849: } else {
850: unsigned long long num;
851: const char *errstr;
852:
1.56 otto 853: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 854: &errstr);
855: if (errstr != NULL || !find_pid(num)) {
856: new_message(MT_standout,
857: " %s: unknown pid",
1.56 otto 858: tempbuf);
1.51 otto 859: no_command = Yes;
860: } else
861: hlpid = (pid_t)num;
862: }
863: putr();
1.45 otto 864: } else
865: clear_message();
1.20 deraadt 866: break;
1.1 downsj 867:
1.47 otto 868: case CMD_add:
869: ps.uid = (uid_t)-1; /* uid */
870: ps.pid = (pid_t)-1; /* pid */
871: ps.system = old_system;
872: ps.command = NULL; /* grep */
1.51 otto 873: hlpid = -1;
1.47 otto 874: break;
875:
1.20 deraadt 876: default:
877: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 878: putr();
1.1 downsj 879: }
880: }
881:
1.20 deraadt 882: /* flush out stuff that may have been written */
883: fflush(stdout);
884: return 0;
1.1 downsj 885: }
886:
1.20 deraadt 887:
1.1 downsj 888: /*
889: * reset_display() - reset all the display routine pointers so that entire
890: * screen will get redrawn.
891: */
1.19 pvalchev 892: static void
893: reset_display(void)
1.1 downsj 894: {
1.51 otto 895: if (smart_terminal) {
896: clear();
897: refresh();
898: }
1.1 downsj 899: }
900:
1.34 deraadt 901: /* ARGSUSED */
1.19 pvalchev 902: void
1.20 deraadt 903: leave(int signo)
1.1 downsj 904: {
1.20 deraadt 905: leaveflag = 1;
1.1 downsj 906: }
907:
1.34 deraadt 908: /* ARGSUSED */
1.19 pvalchev 909: void
1.20 deraadt 910: tstop(int signo)
1.1 downsj 911: {
1.20 deraadt 912: tstopflag = 1;
1.1 downsj 913: }
914:
1.34 deraadt 915: /* ARGSUSED */
1.19 pvalchev 916: void
1.51 otto 917: sigwinch(int signo)
1.1 downsj 918: {
1.20 deraadt 919: winchflag = 1;
1.1 downsj 920: }
921:
1.34 deraadt 922: /* ARGSUSED */
1.19 pvalchev 923: void
1.20 deraadt 924: onalrm(int signo)
1.1 downsj 925: {
926: }
927:
1.19 pvalchev 928: void
1.20 deraadt 929: quit(int ret)
1.1 downsj 930: {
1.20 deraadt 931: end_screen();
932: exit(ret);
1.1 downsj 933: }