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1.54 ! otto 1: /* $OpenBSD: top.c,v 1.53 2007/09/10 10:48:01 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: unsigned long long num;
157: const char *errstr;
158:
159: num = strtonum(optarg, 0, INT_MAX, &errstr);
160: if (errstr != NULL || !find_pid(num)) {
161: fprintf(stderr, "%s: unknown pid\n", optarg);
162: exit(1);
163: }
164: ps.pid = (pid_t)num;
165: ps.system = Yes;
166: break;
167: }
168:
1.20 deraadt 169: case 'S': /* show system processes */
1.35 otto 170: ps.system = Yes;
171: old_system = Yes;
1.20 deraadt 172: break;
173:
1.41 tedu 174: case 'T': /* show threads */
175: ps.threads = Yes;
176: old_threads = Yes;
177: break;
178:
1.20 deraadt 179: case 'I': /* show idle processes */
180: ps.idle = !ps.idle;
181: break;
182:
183: case 'i': /* go interactive regardless */
184: interactive = Yes;
185: break;
186:
187: case 'n': /* batch, or non-interactive */
188: case 'b':
189: interactive = No;
190: break;
191:
192: case 'd': /* number of displays to show */
193: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
194: displays = i;
195: break;
1.32 deraadt 196: }
1.22 deraadt 197: warnx("warning: display count should be positive "
198: "-- option ignored");
1.20 deraadt 199: warnings++;
200: break;
201:
202: case 's':
203: delay = strtod(optarg, &endp);
204:
205: if (delay > 0 && delay <= 1000000 && *endp == '\0')
206: break;
207:
1.22 deraadt 208: warnx("warning: delay should be a non-negative number"
209: " -- using default");
1.20 deraadt 210: delay = Default_DELAY;
211: warnings++;
212: break;
213:
214: case 'q': /* be quick about it */
215: /* only allow this if user is really root */
216: if (getuid() == 0) {
217: /* be very un-nice! */
218: (void) nice(-20);
219: break;
220: }
1.22 deraadt 221: warnx("warning: `-q' option can only be used by root");
1.20 deraadt 222: warnings++;
223: break;
224:
225: case 'o': /* select sort order */
226: order_name = optarg;
227: break;
228:
1.45 otto 229: case 'g': /* grep command name */
230: ps.command = strdup(optarg);
231: break;
232:
1.20 deraadt 233: default:
234: usage();
235: exit(1);
1.1 downsj 236: }
1.20 deraadt 237: }
1.1 downsj 238:
1.20 deraadt 239: /* get count of top processes to display (if any) */
240: if (optind < ac) {
241: if ((topn = atoiwi(av[optind])) == Invalid) {
1.49 otto 242: warnx("warning: process count should "
243: "be a non-negative number -- using default");
1.20 deraadt 244: warnings++;
1.46 otto 245: topn = Infinity;
1.1 downsj 246: }
1.20 deraadt 247: #if Default_TOPN == Infinity
1.1 downsj 248: else
1.20 deraadt 249: topn_specified = Yes;
250: #endif
251: }
252: }
1.1 downsj 253:
1.20 deraadt 254: struct system_info system_info;
255: struct statics statics;
1.1 downsj 256:
1.20 deraadt 257: int
258: main(int argc, char *argv[])
259: {
260: char *uname_field = "USERNAME", *header_text, *env_top;
1.27 deraadt 261: char *(*get_userid)(uid_t) = username, **preset_argv, **av;
1.20 deraadt 262: int preset_argc = 0, ac, active_procs, i;
263: sigset_t mask, oldmask;
264: time_t curr_time;
265: caddr_t processes;
1.1 downsj 266:
1.20 deraadt 267: /* set the buffer for stdout */
268: #ifdef DEBUG
269: setbuffer(stdout, NULL, 0);
1.1 downsj 270: #else
1.20 deraadt 271: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 272: #endif
273:
1.20 deraadt 274: /* initialize some selection options */
275: ps.idle = Yes;
276: ps.system = No;
1.21 millert 277: ps.uid = (uid_t)-1;
1.35 otto 278: ps.pid = (pid_t)-1;
1.20 deraadt 279: ps.command = NULL;
280:
281: /* get preset options from the environment */
282: if ((env_top = getenv("TOP")) != NULL) {
283: av = preset_argv = argparse(env_top, &preset_argc);
284: ac = preset_argc;
285:
286: /*
287: * set the dummy argument to an explanatory message, in case
288: * getopt encounters a bad argument
289: */
290: preset_argv[0] = "while processing environment";
291: }
292: /* process options */
293: do {
294: /*
295: * if we're done doing the presets, then process the real
296: * arguments
297: */
298: if (preset_argc == 0) {
299: ac = argc;
300: av = argv;
301: optind = 1;
302: }
303: parseargs(ac, av);
304: i = preset_argc;
305: preset_argc = 0;
306: } while (i != 0);
307:
308: /* set constants for username/uid display correctly */
309: if (!do_unames) {
310: uname_field = " UID ";
1.26 millert 311: get_userid = format_uid;
1.20 deraadt 312: }
313: /* initialize the kernel memory interface */
314: if (machine_init(&statics) == -1)
1.1 downsj 315: exit(1);
1.20 deraadt 316:
317: /* determine sorting order index, if necessary */
318: if (order_name != NULL) {
319: if ((order_index = string_index(order_name,
320: statics.order_names)) == -1) {
321: char **pp;
322:
1.22 deraadt 323: warnx("'%s' is not a recognized sorting order",
324: order_name);
1.20 deraadt 325: fprintf(stderr, "\tTry one of these:");
326: pp = statics.order_names;
327: while (*pp != NULL)
328: fprintf(stderr, " %s", *pp++);
329: fputc('\n', stderr);
330: exit(1);
331: }
1.1 downsj 332: }
333:
1.20 deraadt 334: /* initialize termcap */
335: init_termcap(interactive);
336:
337: /* get the string to use for the process area header */
338: header_text = format_header(uname_field);
339:
340: /* initialize display interface */
341: if ((max_topn = display_init(&statics)) == -1) {
1.22 deraadt 342: warnx("can't allocate sufficient memory");
1.20 deraadt 343: exit(4);
344: }
345: /* print warning if user requested more processes than we can display */
346: if (topn > max_topn) {
1.22 deraadt 347: warnx("warning: this terminal can only display %d processes",
348: max_topn);
1.1 downsj 349: warnings++;
1.20 deraadt 350: }
351: /* adjust for topn == Infinity */
352: if (topn == Infinity) {
353: /*
354: * For smart terminals, infinity really means everything that can
355: * be displayed, or Largest.
356: * On dumb terminals, infinity means every process in the system!
357: * We only really want to do that if it was explicitly specified.
358: * This is always the case when "Default_TOPN != Infinity". But if
359: * topn wasn't explicitly specified and we are on a dumb terminal
360: * and the default is Infinity, then (and only then) we use
361: * "Nominal_TOPN" instead.
362: */
1.1 downsj 363: #if Default_TOPN == Infinity
1.20 deraadt 364: topn = smart_terminal ? Largest :
365: (topn_specified ? Largest : Nominal_TOPN);
366: #else
367: topn = Largest;
1.1 downsj 368: #endif
369: }
1.20 deraadt 370: /* set header display accordingly */
371: display_header(topn > 0);
1.1 downsj 372:
1.20 deraadt 373: /* determine interactive state */
374: if (interactive == Maybe)
375: interactive = smart_terminal;
1.1 downsj 376:
1.20 deraadt 377: /* if # of displays not specified, fill it in */
378: if (displays == 0)
379: displays = smart_terminal ? Infinity : 1;
1.1 downsj 380:
381: /*
1.20 deraadt 382: * block interrupt signals while setting up the screen and the
383: * handlers
1.1 downsj 384: */
1.20 deraadt 385: sigemptyset(&mask);
386: sigaddset(&mask, SIGINT);
387: sigaddset(&mask, SIGQUIT);
388: sigaddset(&mask, SIGTSTP);
389: sigprocmask(SIG_BLOCK, &mask, &oldmask);
390: init_screen();
391: (void) signal(SIGINT, leave);
1.30 deraadt 392: siginterrupt(SIGINT, 1);
1.20 deraadt 393: (void) signal(SIGQUIT, leave);
394: (void) signal(SIGTSTP, tstop);
1.51 otto 395: if (smart_terminal)
396: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 397: sigprocmask(SIG_SETMASK, &oldmask, NULL);
398: if (warnings) {
399: fputs("....", stderr);
400: fflush(stderr); /* why must I do this? */
1.32 deraadt 401: sleep((unsigned)(3 * warnings));
1.20 deraadt 402: fputc('\n', stderr);
403: }
1.7 deraadt 404: restart:
1.1 downsj 405:
1.20 deraadt 406: /*
407: * main loop -- repeat while display count is positive or while it
408: * indicates infinity (by being -1)
409: */
410: while ((displays == -1) || (displays-- > 0)) {
411: /* get the current stats */
412: get_system_info(&system_info);
413:
414: /* get the current set of processes */
415: processes = get_process_info(&system_info, &ps,
416: proc_compares[order_index]);
417:
418: /* display the load averages */
1.51 otto 419: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 420:
421: /* display the current time */
422: /* this method of getting the time SHOULD be fairly portable */
423: time(&curr_time);
424: i_timeofday(&curr_time);
425:
426: /* display process state breakdown */
1.51 otto 427: i_procstates(system_info.p_total, system_info.procstates);
1.20 deraadt 428:
429: /* display the cpu state percentage breakdown */
1.51 otto 430: i_cpustates(system_info.cpustates);
1.1 downsj 431:
1.20 deraadt 432: /* display memory stats */
1.51 otto 433: i_memory(system_info.memory);
1.1 downsj 434:
1.20 deraadt 435: /* handle message area */
1.51 otto 436: i_message();
1.1 downsj 437:
1.20 deraadt 438: /* update the header area */
1.51 otto 439: i_header(header_text);
1.20 deraadt 440:
441: if (topn > 0) {
442: /* determine number of processes to actually display */
443: /*
444: * this number will be the smallest of: active
445: * processes, number user requested, number current
446: * screen accommodates
447: */
448: active_procs = system_info.p_active;
449: if (active_procs > topn)
450: active_procs = topn;
451: if (active_procs > max_topn)
452: active_procs = max_topn;
453: /* now show the top "n" processes. */
1.51 otto 454: for (i = 0; i < active_procs; i++) {
455: pid_t pid;
456: char * s;
457:
458: s = format_next_process(processes, get_userid,
459: &pid);
460: i_process(i, s, pid == hlpid);
461: }
1.54 ! otto 462: }
1.20 deraadt 463:
464: /* do end-screen processing */
1.52 deraadt 465: u_endscreen();
1.20 deraadt 466:
467: /* now, flush the output buffer */
468: fflush(stdout);
469:
1.51 otto 470: if (smart_terminal)
471: refresh();
472:
1.20 deraadt 473: /* only do the rest if we have more displays to show */
474: if (displays) {
475: /* switch out for new display on smart terminals */
476: no_command = Yes;
477: if (!interactive) {
478: /* set up alarm */
479: (void) signal(SIGALRM, onalrm);
480: (void) alarm((unsigned) delay);
481:
482: /* wait for the rest of it .... */
483: pause();
1.42 otto 484: if (leaveflag)
485: exit(0);
486: if (tstopflag) {
487: (void) signal(SIGTSTP, SIG_DFL);
488: (void) kill(0, SIGTSTP);
489: /* reset the signal handler */
490: (void) signal(SIGTSTP, tstop);
491: tstopflag = 0;
492: }
1.20 deraadt 493: } else {
494: while (no_command)
495: if (rundisplay())
496: goto restart;
497: }
498: }
499: }
1.1 downsj 500:
1.20 deraadt 501: quit(0);
502: /* NOTREACHED */
503: return (0);
504: }
1.7 deraadt 505:
1.20 deraadt 506: int
507: rundisplay(void)
508: {
509: static char tempbuf1[50], tempbuf2[50];
510: sigset_t mask;
511: char ch, *iptr;
512: int change, i;
1.28 deraadt 513: struct pollfd pfd[1];
1.21 millert 514: uid_t uid;
1.51 otto 515: static char command_chars[] = "\f qh?en#sdkriIuSopCTg+P";
1.7 deraadt 516:
1.20 deraadt 517: /*
518: * assume valid command unless told
519: * otherwise
520: */
521: no_command = No;
1.7 deraadt 522:
1.20 deraadt 523: /*
524: * set up arguments for select with
525: * timeout
526: */
1.28 deraadt 527: pfd[0].fd = STDIN_FILENO;
528: pfd[0].events = POLLIN;
1.20 deraadt 529:
1.42 otto 530: if (leaveflag)
531: quit(0);
1.20 deraadt 532: if (tstopflag) {
533: /* move to the lower left */
534: end_screen();
535: fflush(stdout);
536:
537: /*
538: * default the signal handler
539: * action
540: */
541: (void) signal(SIGTSTP, SIG_DFL);
542:
543: /*
544: * unblock the signal and
545: * send ourselves one
546: */
547: sigemptyset(&mask);
548: sigaddset(&mask, SIGTSTP);
549: sigprocmask(SIG_UNBLOCK, &mask, NULL);
550: (void) kill(0, SIGTSTP);
551:
552: /* reset the signal handler */
553: (void) signal(SIGTSTP, tstop);
554:
555: /* reinit screen */
556: reinit_screen();
557: reset_display();
558: tstopflag = 0;
559: return 1;
560: }
561: if (winchflag) {
562: /*
563: * reascertain the screen
564: * dimensions
565: */
566: get_screensize();
1.51 otto 567: resizeterm(screen_length, screen_width + 1);
1.20 deraadt 568:
569: /* tell display to resize */
570: max_topn = display_resize();
571:
572: /* reset the signal handler */
1.51 otto 573: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 574:
575: reset_display();
576: winchflag = 0;
577: return 1;
578: }
579: /*
580: * wait for either input or the end
581: * of the delay period
582: */
1.33 deraadt 583: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 584: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 585: char *errmsg;
1.30 deraadt 586: ssize_t len;
1.20 deraadt 587: int newval;
588:
589: clear_message();
590:
591: /*
592: * now read it and convert to
593: * command strchr
594: */
1.30 deraadt 595: while (1) {
1.36 deraadt 596: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 597: if (len == -1 && errno == EINTR)
598: continue;
599: if (len == 0)
600: exit(1);
601: break;
602: }
1.20 deraadt 603: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 604: /* illegal command */
605: new_message(MT_standout, " Command not understood");
1.51 otto 606: putr();
1.1 downsj 607: no_command = Yes;
1.20 deraadt 608: fflush(stdout);
609: return (0);
610: }
611:
612: change = iptr - command_chars;
613:
614: switch (change) {
615: case CMD_redraw: /* redraw screen */
616: reset_display();
617: break;
618:
619: case CMD_update: /* merely update display */
620: /*
621: * is the load average high?
622: */
623: if (system_info.load_avg[0] > LoadMax) {
624: /* yes, go home for visual feedback */
625: go_home();
626: fflush(stdout);
1.1 downsj 627: }
1.20 deraadt 628: break;
629:
630: case CMD_quit: /* quit */
631: quit(0);
632: break;
633:
634: case CMD_help1: /* help */
635: case CMD_help2:
636: clear();
637: show_help();
1.51 otto 638: anykey();
639: clear();
1.20 deraadt 640: break;
641:
642: case CMD_errors: /* show errors */
643: if (error_count() == 0) {
644: new_message(MT_standout,
645: " Currently no errors to report.");
1.51 otto 646: putr();
1.20 deraadt 647: no_command = Yes;
648: } else {
1.1 downsj 649: clear();
1.20 deraadt 650: show_errors();
1.51 otto 651: anykey();
652: clear();
1.20 deraadt 653: }
654: break;
655:
656: case CMD_number1: /* new number */
657: case CMD_number2:
658: new_message(MT_standout,
659: "Number of processes to show: ");
660: newval = readline(tempbuf1, 8, Yes);
661: if (newval > -1) {
662: if (newval > max_topn) {
1.1 downsj 663: new_message(MT_standout | MT_delayed,
1.20 deraadt 664: " This terminal can only "
665: "display %d processes.",
666: max_topn);
1.51 otto 667: putr();
1.20 deraadt 668: }
669: if (newval == 0)
1.1 downsj 670: display_header(No);
1.20 deraadt 671: else if (newval > topn && topn == 0) {
1.1 downsj 672: /* redraw the header */
673: display_header(Yes);
674: }
1.20 deraadt 675: topn = newval;
676: }
677: break;
678:
679: case CMD_delay: /* new seconds delay */
680: new_message(MT_standout, "Seconds to delay: ");
681: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
682: char *endp;
683: double newdelay = strtod(tempbuf2, &endp);
684:
685: if (newdelay >= 0 && newdelay < 1000000 &&
1.48 otto 686: *endp == '\0') {
1.16 hugh 687: delay = newdelay;
1.48 otto 688: } else {
689: new_message(MT_standout,
690: "Delay should be a non-negative number");
1.51 otto 691: putr();
1.48 otto 692: no_command = Yes;
693: }
694:
695: } else
696: clear_message();
1.20 deraadt 697: break;
698:
699: case CMD_displays: /* change display count */
700: new_message(MT_standout,
701: "Displays to show (currently %s): ",
702: displays == -1 ? "infinite" :
703: itoa(displays));
704: if ((i = readline(tempbuf1, 10, Yes)) > 0)
705: displays = i;
706: else if (i == 0)
707: quit(0);
708:
709: clear_message();
710: break;
711:
712: case CMD_kill: /* kill program */
713: new_message(0, "kill ");
714: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
715: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 716: new_message(MT_standout, "%s", errmsg);
1.51 otto 717: putr();
1.1 downsj 718: no_command = Yes;
719: }
1.20 deraadt 720: } else
721: clear_message();
722: break;
723:
724: case CMD_renice: /* renice program */
725: new_message(0, "renice ");
726: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
727: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 728: new_message(MT_standout, "%s", errmsg);
1.51 otto 729: putr();
1.1 downsj 730: no_command = Yes;
731: }
1.20 deraadt 732: } else
733: clear_message();
734: break;
1.1 downsj 735:
1.20 deraadt 736: case CMD_idletog:
737: case CMD_idletog2:
738: ps.idle = !ps.idle;
739: new_message(MT_standout | MT_delayed,
740: " %sisplaying idle processes.",
741: ps.idle ? "D" : "Not d");
1.51 otto 742: putr();
1.20 deraadt 743: break;
1.1 downsj 744:
1.20 deraadt 745: case CMD_user:
746: new_message(MT_standout,
747: "Username to show: ");
748: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
749: if (tempbuf2[0] == '+' &&
750: tempbuf2[1] == '\0') {
1.21 millert 751: ps.uid = (uid_t)-1;
752: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 753: new_message(MT_standout,
754: " %s: unknown user", tempbuf2);
755: no_command = Yes;
1.20 deraadt 756: } else
1.21 millert 757: ps.uid = uid;
1.51 otto 758: putr();
1.20 deraadt 759: } else
760: clear_message();
761: break;
1.12 fgsch 762:
1.20 deraadt 763: case CMD_system:
764: ps.system = !ps.system;
1.35 otto 765: old_system = ps.system;
1.20 deraadt 766: new_message(MT_standout | MT_delayed,
767: " %sisplaying system processes.",
768: ps.system ? "D" : "Not d");
769: break;
770:
771: case CMD_order:
772: new_message(MT_standout,
773: "Order to sort: ");
774: if (readline(tempbuf2,
775: sizeof(tempbuf2), No) > 0) {
776: if ((i = string_index(tempbuf2,
777: statics.order_names)) == -1) {
778: new_message(MT_standout,
779: " %s: unrecognized sorting order",
780: tempbuf2);
781: no_command = Yes;
782: } else
1.1 downsj 783: order_index = i;
1.51 otto 784: putr();
1.35 otto 785: } else
786: clear_message();
787: break;
788:
789: case CMD_pid:
1.37 jaredy 790: new_message(MT_standout, "Process ID to show: ");
1.35 otto 791: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
792: if (tempbuf2[0] == '+' &&
793: tempbuf2[1] == '\0') {
794: ps.pid = (pid_t)-1;
795: ps.system = old_system;
796: } else {
797: unsigned long long num;
798: const char *errstr;
799:
800: num = strtonum(tempbuf2, 0, INT_MAX,
801: &errstr);
802: if (errstr != NULL || !find_pid(num)) {
803: new_message(MT_standout,
804: " %s: unknown pid",
805: tempbuf2);
806: no_command = Yes;
807: } else {
808: if (ps.system == No)
809: old_system = No;
810: ps.pid = (pid_t)num;
811: ps.system = Yes;
812: }
813: }
1.51 otto 814: putr();
1.20 deraadt 815: } else
816: clear_message();
1.40 markus 817: break;
818:
819: case CMD_command:
820: show_args = (show_args == No) ? Yes : No;
1.41 tedu 821: break;
822:
823: case CMD_threads:
824: ps.threads = !ps.threads;
825: old_threads = ps.threads;
826: new_message(MT_standout | MT_delayed,
827: " %sisplaying threads.",
828: ps.threads ? "D" : "Not d");
1.45 otto 829: break;
830:
831: case CMD_grep:
832: new_message(MT_standout,
833: "Grep command name: ");
834: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
835: free(ps.command);
836: if (tempbuf2[0] == '+' &&
837: tempbuf2[1] == '\0')
838: ps.command = NULL;
839: else
840: ps.command = strdup(tempbuf2);
1.51 otto 841: putr();
842: } else
843: clear_message();
844: break;
845:
846: case CMD_hl:
1.53 otto 847: new_message(MT_standout, "Process ID to highlight: ");
1.51 otto 848: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
849: if (tempbuf2[0] == '+' &&
850: tempbuf2[1] == '\0') {
851: hlpid = -1;
852: } else {
853: unsigned long long num;
854: const char *errstr;
855:
856: num = strtonum(tempbuf2, 0, INT_MAX,
857: &errstr);
858: if (errstr != NULL || !find_pid(num)) {
859: new_message(MT_standout,
860: " %s: unknown pid",
861: tempbuf2);
862: no_command = Yes;
863: } else
864: hlpid = (pid_t)num;
865: }
866: putr();
1.45 otto 867: } else
868: clear_message();
1.20 deraadt 869: break;
1.1 downsj 870:
1.47 otto 871: case CMD_add:
872: ps.uid = (uid_t)-1; /* uid */
873: ps.pid = (pid_t)-1; /* pid */
874: ps.system = old_system;
875: ps.command = NULL; /* grep */
1.51 otto 876: hlpid = -1;
1.47 otto 877: break;
878:
1.20 deraadt 879: default:
880: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 881: putr();
1.1 downsj 882: }
883: }
884:
1.20 deraadt 885: /* flush out stuff that may have been written */
886: fflush(stdout);
887: return 0;
1.1 downsj 888: }
889:
1.20 deraadt 890:
1.1 downsj 891: /*
892: * reset_display() - reset all the display routine pointers so that entire
893: * screen will get redrawn.
894: */
1.19 pvalchev 895: static void
896: reset_display(void)
1.1 downsj 897: {
1.51 otto 898: if (smart_terminal) {
899: clear();
900: refresh();
901: }
1.1 downsj 902: }
903:
1.34 deraadt 904: /* ARGSUSED */
1.19 pvalchev 905: void
1.20 deraadt 906: leave(int signo)
1.1 downsj 907: {
1.20 deraadt 908: leaveflag = 1;
1.1 downsj 909: }
910:
1.34 deraadt 911: /* ARGSUSED */
1.19 pvalchev 912: void
1.20 deraadt 913: tstop(int signo)
1.1 downsj 914: {
1.20 deraadt 915: tstopflag = 1;
1.1 downsj 916: }
917:
1.34 deraadt 918: /* ARGSUSED */
1.19 pvalchev 919: void
1.51 otto 920: sigwinch(int signo)
1.1 downsj 921: {
1.20 deraadt 922: winchflag = 1;
1.1 downsj 923: }
924:
1.34 deraadt 925: /* ARGSUSED */
1.19 pvalchev 926: void
1.20 deraadt 927: onalrm(int signo)
1.1 downsj 928: {
929: }
930:
1.19 pvalchev 931: void
1.20 deraadt 932: quit(int ret)
1.1 downsj 933: {
1.20 deraadt 934: end_screen();
935: exit(ret);
1.1 downsj 936: }