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1.52 ! deraadt 1: /* $OpenBSD: top.c,v 1.51 2007/05/29 00:56:56 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: }
1.20 deraadt 462: } else
463: i = 0;
464:
465: /* do end-screen processing */
1.52 ! deraadt 466: u_endscreen();
1.20 deraadt 467:
468: /* now, flush the output buffer */
469: fflush(stdout);
470:
1.51 otto 471: if (smart_terminal)
472: refresh();
473:
1.20 deraadt 474: /* only do the rest if we have more displays to show */
475: if (displays) {
476: /* switch out for new display on smart terminals */
477: no_command = Yes;
478: if (!interactive) {
479: /* set up alarm */
480: (void) signal(SIGALRM, onalrm);
481: (void) alarm((unsigned) delay);
482:
483: /* wait for the rest of it .... */
484: pause();
1.42 otto 485: if (leaveflag)
486: exit(0);
487: if (tstopflag) {
488: (void) signal(SIGTSTP, SIG_DFL);
489: (void) kill(0, SIGTSTP);
490: /* reset the signal handler */
491: (void) signal(SIGTSTP, tstop);
492: tstopflag = 0;
493: }
1.20 deraadt 494: } else {
495: while (no_command)
496: if (rundisplay())
497: goto restart;
498: }
499: }
500: }
1.1 downsj 501:
1.20 deraadt 502: quit(0);
503: /* NOTREACHED */
504: return (0);
505: }
1.7 deraadt 506:
1.20 deraadt 507: int
508: rundisplay(void)
509: {
510: static char tempbuf1[50], tempbuf2[50];
511: sigset_t mask;
512: char ch, *iptr;
513: int change, i;
1.28 deraadt 514: struct pollfd pfd[1];
1.21 millert 515: uid_t uid;
1.51 otto 516: static char command_chars[] = "\f qh?en#sdkriIuSopCTg+P";
1.7 deraadt 517:
1.20 deraadt 518: /*
519: * assume valid command unless told
520: * otherwise
521: */
522: no_command = No;
1.7 deraadt 523:
1.20 deraadt 524: /*
525: * set up arguments for select with
526: * timeout
527: */
1.28 deraadt 528: pfd[0].fd = STDIN_FILENO;
529: pfd[0].events = POLLIN;
1.20 deraadt 530:
1.42 otto 531: if (leaveflag)
532: quit(0);
1.20 deraadt 533: if (tstopflag) {
534: /* move to the lower left */
535: end_screen();
536: fflush(stdout);
537:
538: /*
539: * default the signal handler
540: * action
541: */
542: (void) signal(SIGTSTP, SIG_DFL);
543:
544: /*
545: * unblock the signal and
546: * send ourselves one
547: */
548: sigemptyset(&mask);
549: sigaddset(&mask, SIGTSTP);
550: sigprocmask(SIG_UNBLOCK, &mask, NULL);
551: (void) kill(0, SIGTSTP);
552:
553: /* reset the signal handler */
554: (void) signal(SIGTSTP, tstop);
555:
556: /* reinit screen */
557: reinit_screen();
558: reset_display();
559: tstopflag = 0;
560: return 1;
561: }
562: if (winchflag) {
563: /*
564: * reascertain the screen
565: * dimensions
566: */
567: get_screensize();
1.51 otto 568: resizeterm(screen_length, screen_width + 1);
1.20 deraadt 569:
570: /* tell display to resize */
571: max_topn = display_resize();
572:
573: /* reset the signal handler */
1.51 otto 574: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 575:
576: reset_display();
577: winchflag = 0;
578: return 1;
579: }
580: /*
581: * wait for either input or the end
582: * of the delay period
583: */
1.33 deraadt 584: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 585: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 586: char *errmsg;
1.30 deraadt 587: ssize_t len;
1.20 deraadt 588: int newval;
589:
590: clear_message();
591:
592: /*
593: * now read it and convert to
594: * command strchr
595: */
1.30 deraadt 596: while (1) {
1.36 deraadt 597: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 598: if (len == -1 && errno == EINTR)
599: continue;
600: if (len == 0)
601: exit(1);
602: break;
603: }
1.20 deraadt 604: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 605: /* illegal command */
606: new_message(MT_standout, " Command not understood");
1.51 otto 607: putr();
1.1 downsj 608: no_command = Yes;
1.20 deraadt 609: fflush(stdout);
610: return (0);
611: }
612:
613: change = iptr - command_chars;
614:
615: switch (change) {
616: case CMD_redraw: /* redraw screen */
617: reset_display();
618: break;
619:
620: case CMD_update: /* merely update display */
621: /*
622: * is the load average high?
623: */
624: if (system_info.load_avg[0] > LoadMax) {
625: /* yes, go home for visual feedback */
626: go_home();
627: fflush(stdout);
1.1 downsj 628: }
1.20 deraadt 629: break;
630:
631: case CMD_quit: /* quit */
632: quit(0);
633: break;
634:
635: case CMD_help1: /* help */
636: case CMD_help2:
637: clear();
638: show_help();
1.51 otto 639: anykey();
640: clear();
1.20 deraadt 641: break;
642:
643: case CMD_errors: /* show errors */
644: if (error_count() == 0) {
645: new_message(MT_standout,
646: " Currently no errors to report.");
1.51 otto 647: putr();
1.20 deraadt 648: no_command = Yes;
649: } else {
1.1 downsj 650: clear();
1.20 deraadt 651: show_errors();
1.51 otto 652: anykey();
653: clear();
1.20 deraadt 654: }
655: break;
656:
657: case CMD_number1: /* new number */
658: case CMD_number2:
659: new_message(MT_standout,
660: "Number of processes to show: ");
661: newval = readline(tempbuf1, 8, Yes);
662: if (newval > -1) {
663: if (newval > max_topn) {
1.1 downsj 664: new_message(MT_standout | MT_delayed,
1.20 deraadt 665: " This terminal can only "
666: "display %d processes.",
667: max_topn);
1.51 otto 668: putr();
1.20 deraadt 669: }
670: if (newval == 0)
1.1 downsj 671: display_header(No);
1.20 deraadt 672: else if (newval > topn && topn == 0) {
1.1 downsj 673: /* redraw the header */
674: display_header(Yes);
675: }
1.20 deraadt 676: topn = newval;
677: }
678: break;
679:
680: case CMD_delay: /* new seconds delay */
681: new_message(MT_standout, "Seconds to delay: ");
682: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
683: char *endp;
684: double newdelay = strtod(tempbuf2, &endp);
685:
686: if (newdelay >= 0 && newdelay < 1000000 &&
1.48 otto 687: *endp == '\0') {
1.16 hugh 688: delay = newdelay;
1.48 otto 689: } else {
690: new_message(MT_standout,
691: "Delay should be a non-negative number");
1.51 otto 692: putr();
1.48 otto 693: no_command = Yes;
694: }
695:
696: } else
697: clear_message();
1.20 deraadt 698: break;
699:
700: case CMD_displays: /* change display count */
701: new_message(MT_standout,
702: "Displays to show (currently %s): ",
703: displays == -1 ? "infinite" :
704: itoa(displays));
705: if ((i = readline(tempbuf1, 10, Yes)) > 0)
706: displays = i;
707: else if (i == 0)
708: quit(0);
709:
710: clear_message();
711: break;
712:
713: case CMD_kill: /* kill program */
714: new_message(0, "kill ");
715: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
716: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 717: new_message(MT_standout, "%s", errmsg);
1.51 otto 718: putr();
1.1 downsj 719: no_command = Yes;
720: }
1.20 deraadt 721: } else
722: clear_message();
723: break;
724:
725: case CMD_renice: /* renice program */
726: new_message(0, "renice ");
727: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
728: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 729: new_message(MT_standout, "%s", errmsg);
1.51 otto 730: putr();
1.1 downsj 731: no_command = Yes;
732: }
1.20 deraadt 733: } else
734: clear_message();
735: break;
1.1 downsj 736:
1.20 deraadt 737: case CMD_idletog:
738: case CMD_idletog2:
739: ps.idle = !ps.idle;
740: new_message(MT_standout | MT_delayed,
741: " %sisplaying idle processes.",
742: ps.idle ? "D" : "Not d");
1.51 otto 743: putr();
1.20 deraadt 744: break;
1.1 downsj 745:
1.20 deraadt 746: case CMD_user:
747: new_message(MT_standout,
748: "Username to show: ");
749: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
750: if (tempbuf2[0] == '+' &&
751: tempbuf2[1] == '\0') {
1.21 millert 752: ps.uid = (uid_t)-1;
753: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 754: new_message(MT_standout,
755: " %s: unknown user", tempbuf2);
756: no_command = Yes;
1.20 deraadt 757: } else
1.21 millert 758: ps.uid = uid;
1.51 otto 759: putr();
1.20 deraadt 760: } else
761: clear_message();
762: break;
1.12 fgsch 763:
1.20 deraadt 764: case CMD_system:
765: ps.system = !ps.system;
1.35 otto 766: old_system = ps.system;
1.20 deraadt 767: new_message(MT_standout | MT_delayed,
768: " %sisplaying system processes.",
769: ps.system ? "D" : "Not d");
770: break;
771:
772: case CMD_order:
773: new_message(MT_standout,
774: "Order to sort: ");
775: if (readline(tempbuf2,
776: sizeof(tempbuf2), No) > 0) {
777: if ((i = string_index(tempbuf2,
778: statics.order_names)) == -1) {
779: new_message(MT_standout,
780: " %s: unrecognized sorting order",
781: tempbuf2);
782: no_command = Yes;
783: } else
1.1 downsj 784: order_index = i;
1.51 otto 785: putr();
1.35 otto 786: } else
787: clear_message();
788: break;
789:
790: case CMD_pid:
1.37 jaredy 791: new_message(MT_standout, "Process ID to show: ");
1.35 otto 792: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
793: if (tempbuf2[0] == '+' &&
794: tempbuf2[1] == '\0') {
795: ps.pid = (pid_t)-1;
796: ps.system = old_system;
797: } else {
798: unsigned long long num;
799: const char *errstr;
800:
801: num = strtonum(tempbuf2, 0, INT_MAX,
802: &errstr);
803: if (errstr != NULL || !find_pid(num)) {
804: new_message(MT_standout,
805: " %s: unknown pid",
806: tempbuf2);
807: no_command = Yes;
808: } else {
809: if (ps.system == No)
810: old_system = No;
811: ps.pid = (pid_t)num;
812: ps.system = Yes;
813: }
814: }
1.51 otto 815: putr();
1.20 deraadt 816: } else
817: clear_message();
1.40 markus 818: break;
819:
820: case CMD_command:
821: show_args = (show_args == No) ? Yes : No;
1.41 tedu 822: break;
823:
824: case CMD_threads:
825: ps.threads = !ps.threads;
826: old_threads = ps.threads;
827: new_message(MT_standout | MT_delayed,
828: " %sisplaying threads.",
829: ps.threads ? "D" : "Not d");
1.45 otto 830: break;
831:
832: case CMD_grep:
833: new_message(MT_standout,
834: "Grep command name: ");
835: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
836: free(ps.command);
837: if (tempbuf2[0] == '+' &&
838: tempbuf2[1] == '\0')
839: ps.command = NULL;
840: else
841: ps.command = strdup(tempbuf2);
1.51 otto 842: putr();
843: } else
844: clear_message();
845: break;
846:
847: case CMD_hl:
848: new_message(MT_standout, "Process ID to higlight: ");
849: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
850: if (tempbuf2[0] == '+' &&
851: tempbuf2[1] == '\0') {
852: hlpid = -1;
853: } else {
854: unsigned long long num;
855: const char *errstr;
856:
857: num = strtonum(tempbuf2, 0, INT_MAX,
858: &errstr);
859: if (errstr != NULL || !find_pid(num)) {
860: new_message(MT_standout,
861: " %s: unknown pid",
862: tempbuf2);
863: no_command = Yes;
864: } else
865: hlpid = (pid_t)num;
866: }
867: putr();
1.45 otto 868: } else
869: clear_message();
1.20 deraadt 870: break;
1.1 downsj 871:
1.47 otto 872: case CMD_add:
873: ps.uid = (uid_t)-1; /* uid */
874: ps.pid = (pid_t)-1; /* pid */
875: ps.system = old_system;
876: ps.command = NULL; /* grep */
1.51 otto 877: hlpid = -1;
1.47 otto 878: break;
879:
1.20 deraadt 880: default:
881: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 882: putr();
1.1 downsj 883: }
884: }
885:
1.20 deraadt 886: /* flush out stuff that may have been written */
887: fflush(stdout);
888: return 0;
1.1 downsj 889: }
890:
1.20 deraadt 891:
1.1 downsj 892: /*
893: * reset_display() - reset all the display routine pointers so that entire
894: * screen will get redrawn.
895: */
1.19 pvalchev 896: static void
897: reset_display(void)
1.1 downsj 898: {
1.51 otto 899: if (smart_terminal) {
900: clear();
901: refresh();
902: }
1.1 downsj 903: }
904:
1.34 deraadt 905: /* ARGSUSED */
1.19 pvalchev 906: void
1.20 deraadt 907: leave(int signo)
1.1 downsj 908: {
1.20 deraadt 909: leaveflag = 1;
1.1 downsj 910: }
911:
1.34 deraadt 912: /* ARGSUSED */
1.19 pvalchev 913: void
1.20 deraadt 914: tstop(int signo)
1.1 downsj 915: {
1.20 deraadt 916: tstopflag = 1;
1.1 downsj 917: }
918:
1.34 deraadt 919: /* ARGSUSED */
1.19 pvalchev 920: void
1.51 otto 921: sigwinch(int signo)
1.1 downsj 922: {
1.20 deraadt 923: winchflag = 1;
1.1 downsj 924: }
925:
1.34 deraadt 926: /* ARGSUSED */
1.19 pvalchev 927: void
1.20 deraadt 928: onalrm(int signo)
1.1 downsj 929: {
930: }
931:
1.19 pvalchev 932: void
1.20 deraadt 933: quit(int ret)
1.1 downsj 934: {
1.20 deraadt 935: end_screen();
936: exit(ret);
1.1 downsj 937: }