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1.93 cheloha 1: /* $OpenBSD: top.c,v 1.92 2018/09/22 16:50:35 millert 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>
1.92 millert 39: #include <pwd.h>
1.2 downsj 40: #include <stdlib.h>
1.35 otto 41: #include <limits.h>
1.2 downsj 42: #include <unistd.h>
1.1 downsj 43:
44: /* includes specific to top */
45: #include "display.h" /* interface to display package */
46: #include "screen.h" /* interface to screen package */
47: #include "top.h"
48: #include "top.local.h"
49: #include "boolean.h"
50: #include "machine.h"
51: #include "utils.h"
52:
53: /* Size of the stdio buffer given to stdout */
1.20 deraadt 54: #define BUFFERSIZE 2048
1.1 downsj 55:
56: /* The buffer that stdio will use */
1.32 deraadt 57: char stdoutbuf[BUFFERSIZE];
1.1 downsj 58:
59: /* signal handling routines */
1.32 deraadt 60: static void leave(int);
61: static void onalrm(int);
62: static void tstop(int);
1.51 otto 63: static void sigwinch(int);
1.1 downsj 64:
1.25 deraadt 65: volatile sig_atomic_t leaveflag, tstopflag, winchflag;
1.7 deraadt 66:
1.32 deraadt 67: static void reset_display(void);
1.20 deraadt 68: int rundisplay(void);
1.1 downsj 69:
1.32 deraadt 70: static int max_topn; /* maximum displayable processes */
1.1 downsj 71:
1.32 deraadt 72: extern int (*proc_compares[])(const void *, const void *);
1.20 deraadt 73: int order_index;
1.1 downsj 74:
1.20 deraadt 75: int displays = 0; /* indicates unspecified */
76: char do_unames = Yes;
77: struct process_select ps;
78: char interactive = Maybe;
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;
1.68 tedu 87: int combine_cpus = 0;
1.1 downsj 88:
89: #if Default_TOPN == Infinity
1.20 deraadt 90: char topn_specified = No;
1.1 downsj 91: #endif
92:
1.20 deraadt 93: /*
94: * these defines enumerate the "strchr"s of the commands in
95: * command_chars
96: */
1.1 downsj 97: #define CMD_redraw 0
98: #define CMD_update 1
99: #define CMD_quit 2
100: #define CMD_help1 3
101: #define CMD_help2 4
1.20 deraadt 102: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
103: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 104: #define CMD_number1 6
105: #define CMD_number2 7
106: #define CMD_delay 8
107: #define CMD_displays 9
108: #define CMD_kill 10
109: #define CMD_renice 11
1.32 deraadt 110: #define CMD_idletog 12
111: #define CMD_idletog2 13
1.1 downsj 112: #define CMD_user 14
1.12 fgsch 113: #define CMD_system 15
1.32 deraadt 114: #define CMD_order 16
1.35 otto 115: #define CMD_pid 17
1.40 markus 116: #define CMD_command 18
1.41 tedu 117: #define CMD_threads 19
1.45 otto 118: #define CMD_grep 20
1.47 otto 119: #define CMD_add 21
1.51 otto 120: #define CMD_hl 22
1.68 tedu 121: #define CMD_cpus 23
1.1 downsj 122:
1.27 deraadt 123: static void
1.20 deraadt 124: usage(void)
125: {
1.22 deraadt 126: extern char *__progname;
127:
1.20 deraadt 128: fprintf(stderr,
1.76 jsing 129: "usage: %s [-1bCHIinqSu] [-d count] [-g string] [-o field] "
1.78 brynet 130: "[-p pid] [-s time]\n\t[-U [-]user] [number]\n",
1.22 deraadt 131: __progname);
1.20 deraadt 132: }
133:
1.27 deraadt 134: static void
1.20 deraadt 135: parseargs(int ac, char **av)
136: {
137: char *endp;
138: int i;
139:
1.76 jsing 140: while ((i = getopt(ac, av, "1SHICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 141: switch (i) {
1.68 tedu 142: case '1':
143: combine_cpus = 1;
144: break;
1.44 otto 145: case 'C':
146: show_args = Yes;
147: break;
1.20 deraadt 148: case 'u': /* toggle uid/username display */
149: do_unames = !do_unames;
150: break;
151:
152: case 'U': /* display only username's processes */
1.78 brynet 153: if (optarg[0] == '-') {
1.92 millert 154: if (uid_from_user(optarg+1, &ps.huid) == -1)
155: new_message(MT_delayed,
156: "%s: unknown user", optarg);
1.79 lum 157: else
158: ps.uid = (uid_t)-1;
1.92 millert 159: } else if (uid_from_user(optarg, &ps.uid) == -1)
1.61 otto 160: new_message(MT_delayed, "%s: unknown user",
161: optarg);
1.79 lum 162: else
163: ps.huid = (uid_t)-1;
1.20 deraadt 164: break;
1.1 downsj 165:
1.35 otto 166: case 'p': { /* display only process id */
167: const char *errstr;
168:
1.55 otto 169: i = strtonum(optarg, 0, INT_MAX, &errstr);
1.61 otto 170: if (errstr != NULL || !find_pid(i))
171: new_message(MT_delayed, "%s: unknown pid",
172: optarg);
173: else {
174: ps.pid = (pid_t)i;
175: ps.system = Yes;
1.35 otto 176: }
177: break;
178: }
179:
1.20 deraadt 180: case 'S': /* show system processes */
1.67 jmc 181: ps.system = !ps.system;
182: old_system = !old_system;
1.20 deraadt 183: break;
184:
1.76 jsing 185: case 'H': /* show threads */
1.41 tedu 186: ps.threads = Yes;
187: old_threads = Yes;
188: break;
189:
1.20 deraadt 190: case 'I': /* show idle processes */
191: ps.idle = !ps.idle;
192: break;
193:
194: case 'i': /* go interactive regardless */
195: interactive = Yes;
196: break;
197:
198: case 'n': /* batch, or non-interactive */
199: case 'b':
200: interactive = No;
201: break;
202:
203: case 'd': /* number of displays to show */
204: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
205: displays = i;
1.66 sthen 206: if (displays == 1)
207: interactive = No;
1.20 deraadt 208: break;
1.32 deraadt 209: }
1.60 otto 210: new_message(MT_delayed,
211: "warning: display count should be positive "
1.22 deraadt 212: "-- option ignored");
1.20 deraadt 213: break;
214:
215: case 's':
216: delay = strtod(optarg, &endp);
217:
1.59 otto 218: if (delay >= 0 && delay <= 1000000 && *endp == '\0')
1.20 deraadt 219: break;
220:
1.60 otto 221: new_message(MT_delayed,
222: "warning: delay should be a non-negative number"
1.22 deraadt 223: " -- using default");
1.20 deraadt 224: delay = Default_DELAY;
225: break;
226:
227: case 'q': /* be quick about it */
228: /* only allow this if user is really root */
229: if (getuid() == 0) {
230: /* be very un-nice! */
231: (void) nice(-20);
232: break;
233: }
1.60 otto 234: new_message(MT_delayed,
235: "warning: `-q' option can only be used by root");
1.20 deraadt 236: break;
237:
238: case 'o': /* select sort order */
239: order_name = optarg;
240: break;
241:
1.45 otto 242: case 'g': /* grep command name */
1.74 lum 243: free(ps.command);
1.75 deraadt 244: if ((ps.command = strdup(optarg)) == NULL)
1.74 lum 245: err(1, NULL);
1.45 otto 246: break;
247:
1.20 deraadt 248: default:
249: usage();
250: exit(1);
1.1 downsj 251: }
1.20 deraadt 252: }
1.82 dlg 253:
1.94 ! cheloha 254: i = getncpu();
1.82 dlg 255: if (i == -1)
256: err(1, NULL);
257:
258: if (i > 8)
259: combine_cpus = 1;
1.1 downsj 260:
1.20 deraadt 261: /* get count of top processes to display (if any) */
262: if (optind < ac) {
263: if ((topn = atoiwi(av[optind])) == Invalid) {
1.60 otto 264: new_message(MT_delayed,
265: "warning: process count should "
1.49 otto 266: "be a non-negative number -- using default");
1.46 otto 267: topn = Infinity;
1.1 downsj 268: }
1.20 deraadt 269: #if Default_TOPN == Infinity
1.1 downsj 270: else
1.20 deraadt 271: topn_specified = Yes;
272: #endif
273: }
274: }
1.1 downsj 275:
1.20 deraadt 276: struct system_info system_info;
277: struct statics statics;
1.1 downsj 278:
1.20 deraadt 279: int
280: main(int argc, char *argv[])
281: {
282: char *uname_field = "USERNAME", *header_text, *env_top;
1.92 millert 283: const char *(*get_userid)(uid_t, int) = user_from_uid;
1.77 pirofti 284: char **preset_argv = NULL, **av = argv;
285: int preset_argc = 0, ac = argc, active_procs, i;
1.20 deraadt 286: sigset_t mask, oldmask;
287: time_t curr_time;
288: caddr_t processes;
1.1 downsj 289:
1.20 deraadt 290: /* set the buffer for stdout */
291: #ifdef DEBUG
1.87 tedu 292: setvbuf(stdout, NULL, _IONBUF, 0);
1.1 downsj 293: #else
1.87 tedu 294: setvbuf(stdout, stdoutbuf, _IOFBF, sizeof stdoutbuf);
1.1 downsj 295: #endif
296:
1.20 deraadt 297: /* initialize some selection options */
298: ps.idle = Yes;
299: ps.system = No;
1.21 millert 300: ps.uid = (uid_t)-1;
1.78 brynet 301: ps.huid = (uid_t)-1;
1.35 otto 302: ps.pid = (pid_t)-1;
1.20 deraadt 303: ps.command = NULL;
304:
305: /* get preset options from the environment */
306: if ((env_top = getenv("TOP")) != NULL) {
307: av = preset_argv = argparse(env_top, &preset_argc);
308: ac = preset_argc;
309:
310: /*
311: * set the dummy argument to an explanatory message, in case
312: * getopt encounters a bad argument
313: */
314: preset_argv[0] = "while processing environment";
315: }
316: /* process options */
317: do {
318: /*
319: * if we're done doing the presets, then process the real
320: * arguments
321: */
322: if (preset_argc == 0) {
323: ac = argc;
324: av = argv;
325: optind = 1;
326: }
327: parseargs(ac, av);
328: i = preset_argc;
329: preset_argc = 0;
330: } while (i != 0);
1.84 deraadt 331:
1.88 espie 332: if (pledge("stdio rpath getpw tty proc ps vminfo", NULL) == -1)
1.84 deraadt 333: err(1, "pledge");
1.20 deraadt 334:
335: /* set constants for username/uid display correctly */
336: if (!do_unames) {
337: uname_field = " UID ";
1.26 millert 338: get_userid = format_uid;
1.20 deraadt 339: }
340: /* initialize the kernel memory interface */
341: if (machine_init(&statics) == -1)
1.1 downsj 342: exit(1);
1.20 deraadt 343:
344: /* determine sorting order index, if necessary */
345: if (order_name != NULL) {
346: if ((order_index = string_index(order_name,
347: statics.order_names)) == -1) {
1.69 tedu 348: char **pp, msg[512];
1.20 deraadt 349:
1.60 otto 350: snprintf(msg, sizeof(msg),
351: "'%s' is not a recognized sorting order",
1.22 deraadt 352: order_name);
1.60 otto 353: strlcat(msg, ". Valid are:", sizeof(msg));
1.20 deraadt 354: pp = statics.order_names;
1.60 otto 355: while (*pp != NULL) {
356: strlcat(msg, " ", sizeof(msg));
357: strlcat(msg, *pp++, sizeof(msg));
358: }
359: new_message(MT_delayed, msg);
1.62 otto 360: order_index = 0;
1.20 deraadt 361: }
1.1 downsj 362: }
363:
1.20 deraadt 364: /* initialize termcap */
365: init_termcap(interactive);
366:
367: /* initialize display interface */
1.58 otto 368: max_topn = display_init(&statics);
369:
1.20 deraadt 370: /* print warning if user requested more processes than we can display */
1.60 otto 371: if (topn > max_topn)
372: new_message(MT_delayed,
373: "warning: this terminal can only display %d processes",
1.22 deraadt 374: max_topn);
1.20 deraadt 375: /* adjust for topn == Infinity */
376: if (topn == Infinity) {
377: /*
378: * For smart terminals, infinity really means everything that can
379: * be displayed, or Largest.
380: * On dumb terminals, infinity means every process in the system!
381: * We only really want to do that if it was explicitly specified.
382: * This is always the case when "Default_TOPN != Infinity". But if
383: * topn wasn't explicitly specified and we are on a dumb terminal
384: * and the default is Infinity, then (and only then) we use
385: * "Nominal_TOPN" instead.
386: */
1.1 downsj 387: #if Default_TOPN == Infinity
1.20 deraadt 388: topn = smart_terminal ? Largest :
389: (topn_specified ? Largest : Nominal_TOPN);
390: #else
391: topn = Largest;
1.1 downsj 392: #endif
393: }
1.20 deraadt 394: /* set header display accordingly */
395: display_header(topn > 0);
1.1 downsj 396:
1.20 deraadt 397: /* determine interactive state */
398: if (interactive == Maybe)
399: interactive = smart_terminal;
1.1 downsj 400:
1.20 deraadt 401: /* if # of displays not specified, fill it in */
402: if (displays == 0)
403: displays = smart_terminal ? Infinity : 1;
1.1 downsj 404:
405: /*
1.20 deraadt 406: * block interrupt signals while setting up the screen and the
407: * handlers
1.1 downsj 408: */
1.20 deraadt 409: sigemptyset(&mask);
410: sigaddset(&mask, SIGINT);
411: sigaddset(&mask, SIGQUIT);
412: sigaddset(&mask, SIGTSTP);
413: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.57 otto 414: if (interactive)
415: init_screen();
1.90 deraadt 416: if (pledge("stdio getpw tty proc ps vminfo", NULL) == -1)
417: err(1, "pledge");
1.20 deraadt 418: (void) signal(SIGINT, leave);
1.30 deraadt 419: siginterrupt(SIGINT, 1);
1.20 deraadt 420: (void) signal(SIGQUIT, leave);
421: (void) signal(SIGTSTP, tstop);
1.51 otto 422: if (smart_terminal)
423: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 424: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.7 deraadt 425: restart:
1.1 downsj 426:
1.20 deraadt 427: /*
428: * main loop -- repeat while display count is positive or while it
429: * indicates infinity (by being -1)
430: */
431: while ((displays == -1) || (displays-- > 0)) {
1.70 otto 432: if (winchflag) {
433: /*
434: * reascertain the screen
435: * dimensions
436: */
437: get_screensize();
438: resizeterm(screen_length, screen_width + 1);
439:
440: /* tell display to resize */
441: max_topn = display_resize();
442:
443: /* reset the signal handler */
444: (void) signal(SIGWINCH, sigwinch);
445:
446: reset_display();
447: winchflag = 0;
448: }
449:
1.20 deraadt 450: /* get the current stats */
451: get_system_info(&system_info);
452:
453: /* get the current set of processes */
454: processes = get_process_info(&system_info, &ps,
455: proc_compares[order_index]);
456:
457: /* display the load averages */
1.51 otto 458: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 459:
460: /* display the current time */
461: /* this method of getting the time SHOULD be fairly portable */
462: time(&curr_time);
463: i_timeofday(&curr_time);
464:
1.80 guenther 465: /* display process/threads state breakdown */
466: i_procstates(system_info.p_total, system_info.procstates,
467: ps.threads);
1.20 deraadt 468:
469: /* display the cpu state percentage breakdown */
1.94 ! cheloha 470: i_cpustates(system_info.cpustates);
1.1 downsj 471:
1.20 deraadt 472: /* display memory stats */
1.51 otto 473: i_memory(system_info.memory);
1.1 downsj 474:
1.20 deraadt 475: /* handle message area */
1.51 otto 476: i_message();
1.1 downsj 477:
1.83 mpi 478: /* get the string to use for the process area header */
479: header_text = format_header(uname_field, ps.threads);
480:
1.20 deraadt 481: /* update the header area */
1.51 otto 482: i_header(header_text);
1.20 deraadt 483:
1.63 otto 484: if (topn == Infinity) {
485: #if Default_TOPN == Infinity
486: topn = smart_terminal ? Largest :
487: (topn_specified ? Largest : Nominal_TOPN);
488: #else
489: topn = Largest;
490: #endif
491: }
492:
1.20 deraadt 493: if (topn > 0) {
494: /* determine number of processes to actually display */
495: /*
496: * this number will be the smallest of: active
497: * processes, number user requested, number current
498: * screen accommodates
499: */
500: active_procs = system_info.p_active;
501: if (active_procs > topn)
502: active_procs = topn;
503: if (active_procs > max_topn)
504: active_procs = max_topn;
505: /* now show the top "n" processes. */
1.51 otto 506: for (i = 0; i < active_procs; i++) {
507: pid_t pid;
508: char * s;
509:
510: s = format_next_process(processes, get_userid,
1.83 mpi 511: &pid, ps.threads);
1.51 otto 512: i_process(i, s, pid == hlpid);
513: }
1.54 otto 514: }
1.20 deraadt 515:
516: /* do end-screen processing */
1.52 deraadt 517: u_endscreen();
1.20 deraadt 518:
519: /* now, flush the output buffer */
520: fflush(stdout);
521:
1.51 otto 522: if (smart_terminal)
523: refresh();
524:
1.20 deraadt 525: /* only do the rest if we have more displays to show */
526: if (displays) {
527: /* switch out for new display on smart terminals */
528: no_command = Yes;
529: if (!interactive) {
530: /* set up alarm */
531: (void) signal(SIGALRM, onalrm);
532: (void) alarm((unsigned) delay);
533:
534: /* wait for the rest of it .... */
535: pause();
1.42 otto 536: if (leaveflag)
537: exit(0);
538: if (tstopflag) {
539: (void) signal(SIGTSTP, SIG_DFL);
540: (void) kill(0, SIGTSTP);
541: /* reset the signal handler */
542: (void) signal(SIGTSTP, tstop);
543: tstopflag = 0;
544: }
1.20 deraadt 545: } else {
546: while (no_command)
547: if (rundisplay())
548: goto restart;
549: }
550: }
551: }
1.1 downsj 552:
1.20 deraadt 553: quit(0);
554: /* NOTREACHED */
555: return (0);
556: }
1.7 deraadt 557:
1.20 deraadt 558: int
559: rundisplay(void)
560: {
1.72 lum 561: static char tempbuf[TEMPBUFSIZE];
1.20 deraadt 562: sigset_t mask;
563: char ch, *iptr;
564: int change, i;
1.28 deraadt 565: struct pollfd pfd[1];
1.76 jsing 566: static char command_chars[] = "\f qh?en#sdkriIuSopCHg+P1";
1.7 deraadt 567:
1.20 deraadt 568: /*
569: * assume valid command unless told
570: * otherwise
571: */
572: no_command = No;
1.7 deraadt 573:
1.20 deraadt 574: /*
575: * set up arguments for select with
576: * timeout
577: */
1.28 deraadt 578: pfd[0].fd = STDIN_FILENO;
579: pfd[0].events = POLLIN;
1.20 deraadt 580:
1.42 otto 581: if (leaveflag)
582: quit(0);
1.20 deraadt 583: if (tstopflag) {
584: /* move to the lower left */
585: end_screen();
586: fflush(stdout);
587:
588: /*
589: * default the signal handler
590: * action
591: */
592: (void) signal(SIGTSTP, SIG_DFL);
593:
594: /*
595: * unblock the signal and
596: * send ourselves one
597: */
598: sigemptyset(&mask);
599: sigaddset(&mask, SIGTSTP);
600: sigprocmask(SIG_UNBLOCK, &mask, NULL);
601: (void) kill(0, SIGTSTP);
602:
603: /* reset the signal handler */
604: (void) signal(SIGTSTP, tstop);
605:
606: /* reinit screen */
607: reinit_screen();
608: reset_display();
609: tstopflag = 0;
610: return 1;
611: }
612: /*
613: * wait for either input or the end
614: * of the delay period
615: */
1.81 millert 616: if (poll(pfd, 1, (int)(delay * 1000)) > 0) {
1.20 deraadt 617: char *errmsg;
1.30 deraadt 618: ssize_t len;
1.81 millert 619:
620: if ((pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL)))
621: exit(1);
1.20 deraadt 622:
623: clear_message();
624:
625: /*
626: * now read it and convert to
627: * command strchr
628: */
1.30 deraadt 629: while (1) {
1.36 deraadt 630: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 631: if (len == -1 && errno == EINTR)
632: continue;
633: if (len == 0)
634: exit(1);
635: break;
636: }
1.20 deraadt 637: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 638: /* illegal command */
639: new_message(MT_standout, " Command not understood");
1.51 otto 640: putr();
1.1 downsj 641: no_command = Yes;
1.20 deraadt 642: fflush(stdout);
643: return (0);
644: }
645:
646: change = iptr - command_chars;
647:
648: switch (change) {
649: case CMD_redraw: /* redraw screen */
650: reset_display();
651: break;
652:
653: case CMD_update: /* merely update display */
654: /*
655: * is the load average high?
656: */
657: if (system_info.load_avg[0] > LoadMax) {
658: /* yes, go home for visual feedback */
659: go_home();
660: fflush(stdout);
1.1 downsj 661: }
1.20 deraadt 662: break;
663:
664: case CMD_quit: /* quit */
665: quit(0);
666: break;
667:
668: case CMD_help1: /* help */
669: case CMD_help2:
670: clear();
671: show_help();
1.51 otto 672: anykey();
673: clear();
1.20 deraadt 674: break;
675:
676: case CMD_errors: /* show errors */
677: if (error_count() == 0) {
678: new_message(MT_standout,
679: " Currently no errors to report.");
1.51 otto 680: putr();
1.20 deraadt 681: no_command = Yes;
682: } else {
1.1 downsj 683: clear();
1.20 deraadt 684: show_errors();
1.51 otto 685: anykey();
686: clear();
1.20 deraadt 687: }
688: break;
689:
690: case CMD_number1: /* new number */
691: case CMD_number2:
692: new_message(MT_standout,
693: "Number of processes to show: ");
1.63 otto 694:
695: if (readline(tempbuf, 8) > 0) {
1.73 lum 696: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 697: if (i > max_topn) {
1.65 otto 698: new_message(MT_standout |
699: MT_delayed,
1.63 otto 700: " This terminal can only "
701: "display %d processes.",
702: max_topn);
703: putr();
1.65 otto 704: }
705: if ((i > topn || i == Infinity)
1.64 otto 706: && topn == 0) {
1.63 otto 707: /* redraw the header */
708: display_header(Yes);
1.65 otto 709: } else if (i == 0)
710: display_header(No);
1.63 otto 711: topn = i;
712: } else {
713: new_message(MT_standout,
1.65 otto 714: "Processes should be a "
715: "non-negative number");
1.89 deraadt 716: putr();
1.63 otto 717: no_command = Yes;
1.20 deraadt 718: }
1.63 otto 719: } else
720: clear_message();
1.20 deraadt 721: break;
722:
723: case CMD_delay: /* new seconds delay */
724: new_message(MT_standout, "Seconds to delay: ");
1.63 otto 725: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.20 deraadt 726: char *endp;
1.56 otto 727: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 728:
1.71 lum 729: if (newdelay >= 0 && newdelay <= 1000000 &&
1.48 otto 730: *endp == '\0') {
1.16 hugh 731: delay = newdelay;
1.48 otto 732: } else {
733: new_message(MT_standout,
734: "Delay should be a non-negative number");
1.51 otto 735: putr();
1.48 otto 736: no_command = Yes;
737: }
738:
739: } else
740: clear_message();
1.20 deraadt 741: break;
742:
743: case CMD_displays: /* change display count */
744: new_message(MT_standout,
745: "Displays to show (currently %s): ",
746: displays == -1 ? "infinite" :
747: itoa(displays));
748:
1.63 otto 749: if (readline(tempbuf, 10) > 0) {
1.73 lum 750: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 751: if (i == 0)
752: quit(0);
753: displays = i;
754: } else {
755: new_message(MT_standout,
756: "Displays should be a non-negative number");
757: putr();
758: no_command = Yes;
759: }
760: } else
761: clear_message();
1.20 deraadt 762: break;
763:
764: case CMD_kill: /* kill program */
765: new_message(0, "kill ");
1.63 otto 766: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 767: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 768: new_message(MT_standout, "%s", errmsg);
1.51 otto 769: putr();
1.1 downsj 770: no_command = Yes;
771: }
1.20 deraadt 772: } else
773: clear_message();
774: break;
775:
776: case CMD_renice: /* renice program */
777: new_message(0, "renice ");
1.63 otto 778: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 779: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 780: new_message(MT_standout, "%s", errmsg);
1.51 otto 781: putr();
1.1 downsj 782: no_command = Yes;
783: }
1.20 deraadt 784: } else
785: clear_message();
786: break;
1.1 downsj 787:
1.20 deraadt 788: case CMD_idletog:
789: case CMD_idletog2:
790: ps.idle = !ps.idle;
791: new_message(MT_standout | MT_delayed,
792: " %sisplaying idle processes.",
793: ps.idle ? "D" : "Not d");
1.51 otto 794: putr();
1.20 deraadt 795: break;
1.1 downsj 796:
1.20 deraadt 797: case CMD_user:
798: new_message(MT_standout,
799: "Username to show: ");
1.63 otto 800: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.78 brynet 801: if ((tempbuf[0] == '+' || tempbuf[0] == '-') &&
1.56 otto 802: tempbuf[1] == '\0') {
1.21 millert 803: ps.uid = (uid_t)-1;
1.78 brynet 804: ps.huid = (uid_t)-1;
805: } else if (tempbuf[0] == '-') {
1.92 millert 806: if (uid_from_user(tempbuf+1, &ps.huid) == -1) {
1.78 brynet 807: new_message(MT_standout,
808: " %s: unknown user", tempbuf+1);
809: no_command = Yes;
810: } else {
811: ps.uid = (uid_t)-1;
812: }
1.92 millert 813: } else if (uid_from_user(tempbuf, &ps.uid) == -1) {
1.78 brynet 814: new_message(MT_standout,
1.89 deraadt 815: " %s: unknown user", tempbuf);
1.78 brynet 816: no_command = Yes;
817: } else {
818: ps.huid = (uid_t)-1;
819: }
1.51 otto 820: putr();
1.20 deraadt 821: } else
822: clear_message();
823: break;
1.12 fgsch 824:
1.20 deraadt 825: case CMD_system:
826: ps.system = !ps.system;
1.35 otto 827: old_system = ps.system;
1.20 deraadt 828: new_message(MT_standout | MT_delayed,
829: " %sisplaying system processes.",
830: ps.system ? "D" : "Not d");
831: break;
832:
833: case CMD_order:
834: new_message(MT_standout,
835: "Order to sort: ");
1.63 otto 836: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 837: if ((i = string_index(tempbuf,
1.20 deraadt 838: statics.order_names)) == -1) {
839: new_message(MT_standout,
840: " %s: unrecognized sorting order",
1.56 otto 841: tempbuf);
1.20 deraadt 842: no_command = Yes;
843: } else
1.1 downsj 844: order_index = i;
1.51 otto 845: putr();
1.35 otto 846: } else
847: clear_message();
848: break;
849:
850: case CMD_pid:
1.37 jaredy 851: new_message(MT_standout, "Process ID to show: ");
1.63 otto 852: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 853: if (tempbuf[0] == '+' &&
854: tempbuf[1] == '\0') {
1.35 otto 855: ps.pid = (pid_t)-1;
856: ps.system = old_system;
857: } else {
858: unsigned long long num;
859: const char *errstr;
860:
1.56 otto 861: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 862: &errstr);
863: if (errstr != NULL || !find_pid(num)) {
864: new_message(MT_standout,
865: " %s: unknown pid",
1.56 otto 866: tempbuf);
1.35 otto 867: no_command = Yes;
868: } else {
869: if (ps.system == No)
870: old_system = No;
871: ps.pid = (pid_t)num;
872: ps.system = Yes;
873: }
874: }
1.51 otto 875: putr();
1.20 deraadt 876: } else
877: clear_message();
1.40 markus 878: break;
879:
880: case CMD_command:
881: show_args = (show_args == No) ? Yes : No;
1.41 tedu 882: break;
1.89 deraadt 883:
1.41 tedu 884: case CMD_threads:
885: ps.threads = !ps.threads;
886: old_threads = ps.threads;
887: new_message(MT_standout | MT_delayed,
888: " %sisplaying threads.",
889: ps.threads ? "D" : "Not d");
1.45 otto 890: break;
891:
892: case CMD_grep:
893: new_message(MT_standout,
894: "Grep command name: ");
1.63 otto 895: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.45 otto 896: free(ps.command);
1.56 otto 897: if (tempbuf[0] == '+' &&
898: tempbuf[1] == '\0')
1.45 otto 899: ps.command = NULL;
900: else
1.75 deraadt 901: if ((ps.command = strdup(tempbuf)) ==
902: NULL)
1.74 lum 903: err(1, NULL);
1.51 otto 904: putr();
905: } else
906: clear_message();
907: break;
908:
909: case CMD_hl:
1.53 otto 910: new_message(MT_standout, "Process ID to highlight: ");
1.63 otto 911: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 912: if (tempbuf[0] == '+' &&
913: tempbuf[1] == '\0') {
1.51 otto 914: hlpid = -1;
915: } else {
916: unsigned long long num;
917: const char *errstr;
918:
1.56 otto 919: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 920: &errstr);
921: if (errstr != NULL || !find_pid(num)) {
922: new_message(MT_standout,
923: " %s: unknown pid",
1.56 otto 924: tempbuf);
1.51 otto 925: no_command = Yes;
926: } else
927: hlpid = (pid_t)num;
928: }
929: putr();
1.45 otto 930: } else
931: clear_message();
1.20 deraadt 932: break;
1.1 downsj 933:
1.47 otto 934: case CMD_add:
935: ps.uid = (uid_t)-1; /* uid */
1.78 brynet 936: ps.huid = (uid_t)-1;
1.89 deraadt 937: ps.pid = (pid_t)-1; /* pid */
1.47 otto 938: ps.system = old_system;
939: ps.command = NULL; /* grep */
1.51 otto 940: hlpid = -1;
1.47 otto 941: break;
1.68 tedu 942: case CMD_cpus:
943: combine_cpus = !combine_cpus;
944: max_topn = display_resize();
945: reset_display();
946: break;
1.20 deraadt 947: default:
948: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 949: putr();
1.1 downsj 950: }
951: }
952:
1.20 deraadt 953: /* flush out stuff that may have been written */
954: fflush(stdout);
955: return 0;
1.1 downsj 956: }
957:
1.20 deraadt 958:
1.1 downsj 959: /*
960: * reset_display() - reset all the display routine pointers so that entire
961: * screen will get redrawn.
962: */
1.19 pvalchev 963: static void
964: reset_display(void)
1.1 downsj 965: {
1.51 otto 966: if (smart_terminal) {
967: clear();
968: refresh();
969: }
1.1 downsj 970: }
971:
1.34 deraadt 972: /* ARGSUSED */
1.19 pvalchev 973: void
1.20 deraadt 974: leave(int signo)
1.1 downsj 975: {
1.20 deraadt 976: leaveflag = 1;
1.1 downsj 977: }
978:
1.34 deraadt 979: /* ARGSUSED */
1.19 pvalchev 980: void
1.20 deraadt 981: tstop(int signo)
1.1 downsj 982: {
1.20 deraadt 983: tstopflag = 1;
1.1 downsj 984: }
985:
1.34 deraadt 986: /* ARGSUSED */
1.19 pvalchev 987: void
1.51 otto 988: sigwinch(int signo)
1.1 downsj 989: {
1.20 deraadt 990: winchflag = 1;
1.1 downsj 991: }
992:
1.34 deraadt 993: /* ARGSUSED */
1.19 pvalchev 994: void
1.20 deraadt 995: onalrm(int signo)
1.1 downsj 996: {
997: }
998:
1.19 pvalchev 999: void
1.20 deraadt 1000: quit(int ret)
1.1 downsj 1001: {
1.20 deraadt 1002: end_screen();
1003: exit(ret);
1.1 downsj 1004: }