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1.83 ! mpi 1: /* $OpenBSD: top.c,v 1.82 2014/09/17 01:56:54 dlg Exp $ */
1.1 downsj 2:
3: /*
4: * Top users/processes display for Unix
5: * Version 3
6: *
1.18 deraadt 7: * Copyright (c) 1984, 1989, William LeFebvre, Rice University
8: * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
1.1 downsj 9: *
1.18 deraadt 10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: *
19: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22: * IN NO EVENT SHALL THE AUTHOR OR HIS EMPLOYER BE LIABLE FOR ANY DIRECT, INDIRECT,
23: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 downsj 29: */
30:
1.2 downsj 31: #include <sys/types.h>
1.51 otto 32: #include <curses.h>
1.23 millert 33: #include <err.h>
34: #include <errno.h>
1.2 downsj 35: #include <stdio.h>
1.1 downsj 36: #include <signal.h>
1.2 downsj 37: #include <string.h>
1.28 deraadt 38: #include <poll.h>
1.2 downsj 39: #include <stdlib.h>
1.35 otto 40: #include <limits.h>
1.2 downsj 41: #include <unistd.h>
1.1 downsj 42:
43: /* includes specific to top */
44: #include "display.h" /* interface to display package */
45: #include "screen.h" /* interface to screen package */
46: #include "top.h"
47: #include "top.local.h"
48: #include "boolean.h"
49: #include "machine.h"
50: #include "utils.h"
51:
52: /* Size of the stdio buffer given to stdout */
1.20 deraadt 53: #define BUFFERSIZE 2048
1.1 downsj 54:
55: /* The buffer that stdio will use */
1.32 deraadt 56: char stdoutbuf[BUFFERSIZE];
1.1 downsj 57:
58: /* signal handling routines */
1.32 deraadt 59: static void leave(int);
60: static void onalrm(int);
61: static void tstop(int);
1.51 otto 62: static void sigwinch(int);
1.1 downsj 63:
1.25 deraadt 64: volatile sig_atomic_t leaveflag, tstopflag, winchflag;
1.7 deraadt 65:
1.32 deraadt 66: static void reset_display(void);
1.20 deraadt 67: int rundisplay(void);
1.1 downsj 68:
1.32 deraadt 69: static int max_topn; /* maximum displayable processes */
1.1 downsj 70:
1.32 deraadt 71: extern int (*proc_compares[])(const void *, const void *);
1.20 deraadt 72: int order_index;
1.1 downsj 73:
1.20 deraadt 74: int displays = 0; /* indicates unspecified */
75: char do_unames = Yes;
76: struct process_select ps;
77: char interactive = Maybe;
78: double delay = Default_DELAY;
79: char *order_name = NULL;
80: int topn = Default_TOPN;
1.24 deraadt 81: int no_command = Yes;
1.35 otto 82: int old_system = No;
1.41 tedu 83: int old_threads = No;
1.40 markus 84: int show_args = No;
1.51 otto 85: pid_t hlpid = -1;
1.68 tedu 86: int combine_cpus = 0;
1.1 downsj 87:
88: #if Default_TOPN == Infinity
1.20 deraadt 89: char topn_specified = No;
1.1 downsj 90: #endif
91:
1.20 deraadt 92: /*
93: * these defines enumerate the "strchr"s of the commands in
94: * command_chars
95: */
1.1 downsj 96: #define CMD_redraw 0
97: #define CMD_update 1
98: #define CMD_quit 2
99: #define CMD_help1 3
100: #define CMD_help2 4
1.20 deraadt 101: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
102: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 103: #define CMD_number1 6
104: #define CMD_number2 7
105: #define CMD_delay 8
106: #define CMD_displays 9
107: #define CMD_kill 10
108: #define CMD_renice 11
1.32 deraadt 109: #define CMD_idletog 12
110: #define CMD_idletog2 13
1.1 downsj 111: #define CMD_user 14
1.12 fgsch 112: #define CMD_system 15
1.32 deraadt 113: #define CMD_order 16
1.35 otto 114: #define CMD_pid 17
1.40 markus 115: #define CMD_command 18
1.41 tedu 116: #define CMD_threads 19
1.45 otto 117: #define CMD_grep 20
1.47 otto 118: #define CMD_add 21
1.51 otto 119: #define CMD_hl 22
1.68 tedu 120: #define CMD_cpus 23
1.1 downsj 121:
1.27 deraadt 122: static void
1.20 deraadt 123: usage(void)
124: {
1.22 deraadt 125: extern char *__progname;
126:
1.20 deraadt 127: fprintf(stderr,
1.76 jsing 128: "usage: %s [-1bCHIinqSu] [-d count] [-g string] [-o field] "
1.78 brynet 129: "[-p pid] [-s time]\n\t[-U [-]user] [number]\n",
1.22 deraadt 130: __progname);
1.20 deraadt 131: }
132:
1.27 deraadt 133: static void
1.20 deraadt 134: parseargs(int ac, char **av)
135: {
136: char *endp;
137: int i;
138:
1.76 jsing 139: while ((i = getopt(ac, av, "1SHICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 140: switch (i) {
1.68 tedu 141: case '1':
142: combine_cpus = 1;
143: break;
1.44 otto 144: case 'C':
145: show_args = Yes;
146: break;
1.20 deraadt 147: case 'u': /* toggle uid/username display */
148: do_unames = !do_unames;
149: break;
150:
151: case 'U': /* display only username's processes */
1.78 brynet 152: if (optarg[0] == '-') {
153: if ((ps.huid = userid(optarg+1)) == (uid_t)-1)
154: new_message(MT_delayed, "%s: unknown user",
155: optarg);
1.79 lum 156: else
157: ps.uid = (uid_t)-1;
1.78 brynet 158: } else if ((ps.uid = userid(optarg)) == (uid_t)-1)
1.61 otto 159: new_message(MT_delayed, "%s: unknown user",
160: optarg);
1.79 lum 161: else
162: ps.huid = (uid_t)-1;
1.20 deraadt 163: break;
1.1 downsj 164:
1.35 otto 165: case 'p': { /* display only process id */
166: const char *errstr;
167:
1.55 otto 168: i = strtonum(optarg, 0, INT_MAX, &errstr);
1.61 otto 169: if (errstr != NULL || !find_pid(i))
170: new_message(MT_delayed, "%s: unknown pid",
171: optarg);
172: else {
173: ps.pid = (pid_t)i;
174: ps.system = Yes;
1.35 otto 175: }
176: break;
177: }
178:
1.20 deraadt 179: case 'S': /* show system processes */
1.67 jmc 180: ps.system = !ps.system;
181: old_system = !old_system;
1.20 deraadt 182: break;
183:
1.76 jsing 184: case 'H': /* show threads */
1.41 tedu 185: ps.threads = Yes;
186: old_threads = Yes;
187: break;
188:
1.20 deraadt 189: case 'I': /* show idle processes */
190: ps.idle = !ps.idle;
191: break;
192:
193: case 'i': /* go interactive regardless */
194: interactive = Yes;
195: break;
196:
197: case 'n': /* batch, or non-interactive */
198: case 'b':
199: interactive = No;
200: break;
201:
202: case 'd': /* number of displays to show */
203: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
204: displays = i;
1.66 sthen 205: if (displays == 1)
206: interactive = No;
1.20 deraadt 207: break;
1.32 deraadt 208: }
1.60 otto 209: new_message(MT_delayed,
210: "warning: display count should be positive "
1.22 deraadt 211: "-- option ignored");
1.20 deraadt 212: break;
213:
214: case 's':
215: delay = strtod(optarg, &endp);
216:
1.59 otto 217: if (delay >= 0 && delay <= 1000000 && *endp == '\0')
1.20 deraadt 218: break;
219:
1.60 otto 220: new_message(MT_delayed,
221: "warning: delay should be a non-negative number"
1.22 deraadt 222: " -- using default");
1.20 deraadt 223: delay = Default_DELAY;
224: break;
225:
226: case 'q': /* be quick about it */
227: /* only allow this if user is really root */
228: if (getuid() == 0) {
229: /* be very un-nice! */
230: (void) nice(-20);
231: break;
232: }
1.60 otto 233: new_message(MT_delayed,
234: "warning: `-q' option can only be used by root");
1.20 deraadt 235: break;
236:
237: case 'o': /* select sort order */
238: order_name = optarg;
239: break;
240:
1.45 otto 241: case 'g': /* grep command name */
1.74 lum 242: free(ps.command);
1.75 deraadt 243: if ((ps.command = strdup(optarg)) == NULL)
1.74 lum 244: err(1, NULL);
1.45 otto 245: break;
246:
1.20 deraadt 247: default:
248: usage();
249: exit(1);
1.1 downsj 250: }
1.20 deraadt 251: }
1.82 dlg 252:
253: i = getncpu();
254: if (i == -1)
255: err(1, NULL);
256:
257: if (i > 8)
258: combine_cpus = 1;
1.1 downsj 259:
1.20 deraadt 260: /* get count of top processes to display (if any) */
261: if (optind < ac) {
262: if ((topn = atoiwi(av[optind])) == Invalid) {
1.60 otto 263: new_message(MT_delayed,
264: "warning: process count should "
1.49 otto 265: "be a non-negative number -- using default");
1.46 otto 266: topn = Infinity;
1.1 downsj 267: }
1.20 deraadt 268: #if Default_TOPN == Infinity
1.1 downsj 269: else
1.20 deraadt 270: topn_specified = Yes;
271: #endif
272: }
273: }
1.1 downsj 274:
1.20 deraadt 275: struct system_info system_info;
276: struct statics statics;
1.1 downsj 277:
1.20 deraadt 278: int
279: main(int argc, char *argv[])
280: {
281: char *uname_field = "USERNAME", *header_text, *env_top;
1.77 pirofti 282: char *(*get_userid)(uid_t) = username;
283: char **preset_argv = NULL, **av = argv;
284: int preset_argc = 0, ac = argc, active_procs, i;
1.20 deraadt 285: sigset_t mask, oldmask;
286: time_t curr_time;
287: caddr_t processes;
1.1 downsj 288:
1.20 deraadt 289: /* set the buffer for stdout */
290: #ifdef DEBUG
291: setbuffer(stdout, NULL, 0);
1.1 downsj 292: #else
1.20 deraadt 293: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 294: #endif
295:
1.20 deraadt 296: /* initialize some selection options */
297: ps.idle = Yes;
298: ps.system = No;
1.21 millert 299: ps.uid = (uid_t)-1;
1.78 brynet 300: ps.huid = (uid_t)-1;
1.35 otto 301: ps.pid = (pid_t)-1;
1.20 deraadt 302: ps.command = NULL;
303:
304: /* get preset options from the environment */
305: if ((env_top = getenv("TOP")) != NULL) {
306: av = preset_argv = argparse(env_top, &preset_argc);
307: ac = preset_argc;
308:
309: /*
310: * set the dummy argument to an explanatory message, in case
311: * getopt encounters a bad argument
312: */
313: preset_argv[0] = "while processing environment";
314: }
315: /* process options */
316: do {
317: /*
318: * if we're done doing the presets, then process the real
319: * arguments
320: */
321: if (preset_argc == 0) {
322: ac = argc;
323: av = argv;
324: optind = 1;
325: }
326: parseargs(ac, av);
327: i = preset_argc;
328: preset_argc = 0;
329: } while (i != 0);
330:
331: /* set constants for username/uid display correctly */
332: if (!do_unames) {
333: uname_field = " UID ";
1.26 millert 334: get_userid = format_uid;
1.20 deraadt 335: }
336: /* initialize the kernel memory interface */
337: if (machine_init(&statics) == -1)
1.1 downsj 338: exit(1);
1.20 deraadt 339:
340: /* determine sorting order index, if necessary */
341: if (order_name != NULL) {
342: if ((order_index = string_index(order_name,
343: statics.order_names)) == -1) {
1.69 tedu 344: char **pp, msg[512];
1.20 deraadt 345:
1.60 otto 346: snprintf(msg, sizeof(msg),
347: "'%s' is not a recognized sorting order",
1.22 deraadt 348: order_name);
1.60 otto 349: strlcat(msg, ". Valid are:", sizeof(msg));
1.20 deraadt 350: pp = statics.order_names;
1.60 otto 351: while (*pp != NULL) {
352: strlcat(msg, " ", sizeof(msg));
353: strlcat(msg, *pp++, sizeof(msg));
354: }
355: new_message(MT_delayed, msg);
1.62 otto 356: order_index = 0;
1.20 deraadt 357: }
1.1 downsj 358: }
359:
1.20 deraadt 360: /* initialize termcap */
361: init_termcap(interactive);
362:
363: /* initialize display interface */
1.58 otto 364: max_topn = display_init(&statics);
365:
1.20 deraadt 366: /* print warning if user requested more processes than we can display */
1.60 otto 367: if (topn > max_topn)
368: new_message(MT_delayed,
369: "warning: this terminal can only display %d processes",
1.22 deraadt 370: max_topn);
1.20 deraadt 371: /* adjust for topn == Infinity */
372: if (topn == Infinity) {
373: /*
374: * For smart terminals, infinity really means everything that can
375: * be displayed, or Largest.
376: * On dumb terminals, infinity means every process in the system!
377: * We only really want to do that if it was explicitly specified.
378: * This is always the case when "Default_TOPN != Infinity". But if
379: * topn wasn't explicitly specified and we are on a dumb terminal
380: * and the default is Infinity, then (and only then) we use
381: * "Nominal_TOPN" instead.
382: */
1.1 downsj 383: #if Default_TOPN == Infinity
1.20 deraadt 384: topn = smart_terminal ? Largest :
385: (topn_specified ? Largest : Nominal_TOPN);
386: #else
387: topn = Largest;
1.1 downsj 388: #endif
389: }
1.20 deraadt 390: /* set header display accordingly */
391: display_header(topn > 0);
1.1 downsj 392:
1.20 deraadt 393: /* determine interactive state */
394: if (interactive == Maybe)
395: interactive = smart_terminal;
1.1 downsj 396:
1.20 deraadt 397: /* if # of displays not specified, fill it in */
398: if (displays == 0)
399: displays = smart_terminal ? Infinity : 1;
1.1 downsj 400:
401: /*
1.20 deraadt 402: * block interrupt signals while setting up the screen and the
403: * handlers
1.1 downsj 404: */
1.20 deraadt 405: sigemptyset(&mask);
406: sigaddset(&mask, SIGINT);
407: sigaddset(&mask, SIGQUIT);
408: sigaddset(&mask, SIGTSTP);
409: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.57 otto 410: if (interactive)
411: init_screen();
1.20 deraadt 412: (void) signal(SIGINT, leave);
1.30 deraadt 413: siginterrupt(SIGINT, 1);
1.20 deraadt 414: (void) signal(SIGQUIT, leave);
415: (void) signal(SIGTSTP, tstop);
1.51 otto 416: if (smart_terminal)
417: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 418: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.7 deraadt 419: restart:
1.1 downsj 420:
1.20 deraadt 421: /*
422: * main loop -- repeat while display count is positive or while it
423: * indicates infinity (by being -1)
424: */
425: while ((displays == -1) || (displays-- > 0)) {
1.70 otto 426: if (winchflag) {
427: /*
428: * reascertain the screen
429: * dimensions
430: */
431: get_screensize();
432: resizeterm(screen_length, screen_width + 1);
433:
434: /* tell display to resize */
435: max_topn = display_resize();
436:
437: /* reset the signal handler */
438: (void) signal(SIGWINCH, sigwinch);
439:
440: reset_display();
441: winchflag = 0;
442: }
443:
1.20 deraadt 444: /* get the current stats */
445: get_system_info(&system_info);
446:
447: /* get the current set of processes */
448: processes = get_process_info(&system_info, &ps,
449: proc_compares[order_index]);
450:
451: /* display the load averages */
1.51 otto 452: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 453:
454: /* display the current time */
455: /* this method of getting the time SHOULD be fairly portable */
456: time(&curr_time);
457: i_timeofday(&curr_time);
458:
1.80 guenther 459: /* display process/threads state breakdown */
460: i_procstates(system_info.p_total, system_info.procstates,
461: ps.threads);
1.20 deraadt 462:
463: /* display the cpu state percentage breakdown */
1.51 otto 464: i_cpustates(system_info.cpustates);
1.1 downsj 465:
1.20 deraadt 466: /* display memory stats */
1.51 otto 467: i_memory(system_info.memory);
1.1 downsj 468:
1.20 deraadt 469: /* handle message area */
1.51 otto 470: i_message();
1.1 downsj 471:
1.83 ! mpi 472: /* get the string to use for the process area header */
! 473: header_text = format_header(uname_field, ps.threads);
! 474:
1.20 deraadt 475: /* update the header area */
1.51 otto 476: i_header(header_text);
1.20 deraadt 477:
1.63 otto 478: if (topn == Infinity) {
479: #if Default_TOPN == Infinity
480: topn = smart_terminal ? Largest :
481: (topn_specified ? Largest : Nominal_TOPN);
482: #else
483: topn = Largest;
484: #endif
485: }
486:
1.20 deraadt 487: if (topn > 0) {
488: /* determine number of processes to actually display */
489: /*
490: * this number will be the smallest of: active
491: * processes, number user requested, number current
492: * screen accommodates
493: */
494: active_procs = system_info.p_active;
495: if (active_procs > topn)
496: active_procs = topn;
497: if (active_procs > max_topn)
498: active_procs = max_topn;
499: /* now show the top "n" processes. */
1.51 otto 500: for (i = 0; i < active_procs; i++) {
501: pid_t pid;
502: char * s;
503:
504: s = format_next_process(processes, get_userid,
1.83 ! mpi 505: &pid, ps.threads);
1.51 otto 506: i_process(i, s, pid == hlpid);
507: }
1.54 otto 508: }
1.20 deraadt 509:
510: /* do end-screen processing */
1.52 deraadt 511: u_endscreen();
1.20 deraadt 512:
513: /* now, flush the output buffer */
514: fflush(stdout);
515:
1.51 otto 516: if (smart_terminal)
517: refresh();
518:
1.20 deraadt 519: /* only do the rest if we have more displays to show */
520: if (displays) {
521: /* switch out for new display on smart terminals */
522: no_command = Yes;
523: if (!interactive) {
524: /* set up alarm */
525: (void) signal(SIGALRM, onalrm);
526: (void) alarm((unsigned) delay);
527:
528: /* wait for the rest of it .... */
529: pause();
1.42 otto 530: if (leaveflag)
531: exit(0);
532: if (tstopflag) {
533: (void) signal(SIGTSTP, SIG_DFL);
534: (void) kill(0, SIGTSTP);
535: /* reset the signal handler */
536: (void) signal(SIGTSTP, tstop);
537: tstopflag = 0;
538: }
1.20 deraadt 539: } else {
540: while (no_command)
541: if (rundisplay())
542: goto restart;
543: }
544: }
545: }
1.1 downsj 546:
1.20 deraadt 547: quit(0);
548: /* NOTREACHED */
549: return (0);
550: }
1.7 deraadt 551:
1.20 deraadt 552: int
553: rundisplay(void)
554: {
1.72 lum 555: static char tempbuf[TEMPBUFSIZE];
1.20 deraadt 556: sigset_t mask;
557: char ch, *iptr;
558: int change, i;
1.28 deraadt 559: struct pollfd pfd[1];
1.78 brynet 560: uid_t uid, huid;
1.76 jsing 561: static char command_chars[] = "\f qh?en#sdkriIuSopCHg+P1";
1.7 deraadt 562:
1.20 deraadt 563: /*
564: * assume valid command unless told
565: * otherwise
566: */
567: no_command = No;
1.7 deraadt 568:
1.20 deraadt 569: /*
570: * set up arguments for select with
571: * timeout
572: */
1.28 deraadt 573: pfd[0].fd = STDIN_FILENO;
574: pfd[0].events = POLLIN;
1.20 deraadt 575:
1.42 otto 576: if (leaveflag)
577: quit(0);
1.20 deraadt 578: if (tstopflag) {
579: /* move to the lower left */
580: end_screen();
581: fflush(stdout);
582:
583: /*
584: * default the signal handler
585: * action
586: */
587: (void) signal(SIGTSTP, SIG_DFL);
588:
589: /*
590: * unblock the signal and
591: * send ourselves one
592: */
593: sigemptyset(&mask);
594: sigaddset(&mask, SIGTSTP);
595: sigprocmask(SIG_UNBLOCK, &mask, NULL);
596: (void) kill(0, SIGTSTP);
597:
598: /* reset the signal handler */
599: (void) signal(SIGTSTP, tstop);
600:
601: /* reinit screen */
602: reinit_screen();
603: reset_display();
604: tstopflag = 0;
605: return 1;
606: }
607: /*
608: * wait for either input or the end
609: * of the delay period
610: */
1.81 millert 611: if (poll(pfd, 1, (int)(delay * 1000)) > 0) {
1.20 deraadt 612: char *errmsg;
1.30 deraadt 613: ssize_t len;
1.81 millert 614:
615: if ((pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL)))
616: exit(1);
1.20 deraadt 617:
618: clear_message();
619:
620: /*
621: * now read it and convert to
622: * command strchr
623: */
1.30 deraadt 624: while (1) {
1.36 deraadt 625: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 626: if (len == -1 && errno == EINTR)
627: continue;
628: if (len == 0)
629: exit(1);
630: break;
631: }
1.20 deraadt 632: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 633: /* illegal command */
634: new_message(MT_standout, " Command not understood");
1.51 otto 635: putr();
1.1 downsj 636: no_command = Yes;
1.20 deraadt 637: fflush(stdout);
638: return (0);
639: }
640:
641: change = iptr - command_chars;
642:
643: switch (change) {
644: case CMD_redraw: /* redraw screen */
645: reset_display();
646: break;
647:
648: case CMD_update: /* merely update display */
649: /*
650: * is the load average high?
651: */
652: if (system_info.load_avg[0] > LoadMax) {
653: /* yes, go home for visual feedback */
654: go_home();
655: fflush(stdout);
1.1 downsj 656: }
1.20 deraadt 657: break;
658:
659: case CMD_quit: /* quit */
660: quit(0);
661: break;
662:
663: case CMD_help1: /* help */
664: case CMD_help2:
665: clear();
666: show_help();
1.51 otto 667: anykey();
668: clear();
1.20 deraadt 669: break;
670:
671: case CMD_errors: /* show errors */
672: if (error_count() == 0) {
673: new_message(MT_standout,
674: " Currently no errors to report.");
1.51 otto 675: putr();
1.20 deraadt 676: no_command = Yes;
677: } else {
1.1 downsj 678: clear();
1.20 deraadt 679: show_errors();
1.51 otto 680: anykey();
681: clear();
1.20 deraadt 682: }
683: break;
684:
685: case CMD_number1: /* new number */
686: case CMD_number2:
687: new_message(MT_standout,
688: "Number of processes to show: ");
1.63 otto 689:
690: if (readline(tempbuf, 8) > 0) {
1.73 lum 691: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 692: if (i > max_topn) {
1.65 otto 693: new_message(MT_standout |
694: MT_delayed,
1.63 otto 695: " This terminal can only "
696: "display %d processes.",
697: max_topn);
698: putr();
1.65 otto 699: }
700: if ((i > topn || i == Infinity)
1.64 otto 701: && topn == 0) {
1.63 otto 702: /* redraw the header */
703: display_header(Yes);
1.65 otto 704: } else if (i == 0)
705: display_header(No);
1.63 otto 706: topn = i;
707: } else {
708: new_message(MT_standout,
1.65 otto 709: "Processes should be a "
710: "non-negative number");
1.63 otto 711: putr();
712: no_command = Yes;
1.20 deraadt 713: }
1.63 otto 714: } else
715: clear_message();
1.20 deraadt 716: break;
717:
718: case CMD_delay: /* new seconds delay */
719: new_message(MT_standout, "Seconds to delay: ");
1.63 otto 720: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.20 deraadt 721: char *endp;
1.56 otto 722: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 723:
1.71 lum 724: if (newdelay >= 0 && newdelay <= 1000000 &&
1.48 otto 725: *endp == '\0') {
1.16 hugh 726: delay = newdelay;
1.48 otto 727: } else {
728: new_message(MT_standout,
729: "Delay should be a non-negative number");
1.51 otto 730: putr();
1.48 otto 731: no_command = Yes;
732: }
733:
734: } else
735: clear_message();
1.20 deraadt 736: break;
737:
738: case CMD_displays: /* change display count */
739: new_message(MT_standout,
740: "Displays to show (currently %s): ",
741: displays == -1 ? "infinite" :
742: itoa(displays));
743:
1.63 otto 744: if (readline(tempbuf, 10) > 0) {
1.73 lum 745: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 746: if (i == 0)
747: quit(0);
748: displays = i;
749: } else {
750: new_message(MT_standout,
751: "Displays should be a non-negative number");
752: putr();
753: no_command = Yes;
754: }
755: } else
756: clear_message();
1.20 deraadt 757: break;
758:
759: case CMD_kill: /* kill program */
760: new_message(0, "kill ");
1.63 otto 761: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 762: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 763: new_message(MT_standout, "%s", errmsg);
1.51 otto 764: putr();
1.1 downsj 765: no_command = Yes;
766: }
1.20 deraadt 767: } else
768: clear_message();
769: break;
770:
771: case CMD_renice: /* renice program */
772: new_message(0, "renice ");
1.63 otto 773: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 774: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 775: new_message(MT_standout, "%s", errmsg);
1.51 otto 776: putr();
1.1 downsj 777: no_command = Yes;
778: }
1.20 deraadt 779: } else
780: clear_message();
781: break;
1.1 downsj 782:
1.20 deraadt 783: case CMD_idletog:
784: case CMD_idletog2:
785: ps.idle = !ps.idle;
786: new_message(MT_standout | MT_delayed,
787: " %sisplaying idle processes.",
788: ps.idle ? "D" : "Not d");
1.51 otto 789: putr();
1.20 deraadt 790: break;
1.1 downsj 791:
1.20 deraadt 792: case CMD_user:
793: new_message(MT_standout,
794: "Username to show: ");
1.63 otto 795: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.78 brynet 796: if ((tempbuf[0] == '+' || tempbuf[0] == '-') &&
1.56 otto 797: tempbuf[1] == '\0') {
1.21 millert 798: ps.uid = (uid_t)-1;
1.78 brynet 799: ps.huid = (uid_t)-1;
800: } else if (tempbuf[0] == '-') {
801: if ((huid = userid(tempbuf+1)) == (uid_t)-1) {
802: new_message(MT_standout,
803: " %s: unknown user", tempbuf+1);
804: no_command = Yes;
805: } else {
806: ps.huid = huid;
807: ps.uid = (uid_t)-1;
808: }
1.56 otto 809: } else if ((uid = userid(tempbuf)) == (uid_t)-1) {
1.78 brynet 810: new_message(MT_standout,
811: " %s: unknown user", tempbuf);
812: no_command = Yes;
813: } else {
1.21 millert 814: ps.uid = uid;
1.78 brynet 815: ps.huid = (uid_t)-1;
816: }
1.51 otto 817: putr();
1.20 deraadt 818: } else
819: clear_message();
820: break;
1.12 fgsch 821:
1.20 deraadt 822: case CMD_system:
823: ps.system = !ps.system;
1.35 otto 824: old_system = ps.system;
1.20 deraadt 825: new_message(MT_standout | MT_delayed,
826: " %sisplaying system processes.",
827: ps.system ? "D" : "Not d");
828: break;
829:
830: case CMD_order:
831: new_message(MT_standout,
832: "Order to sort: ");
1.63 otto 833: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 834: if ((i = string_index(tempbuf,
1.20 deraadt 835: statics.order_names)) == -1) {
836: new_message(MT_standout,
837: " %s: unrecognized sorting order",
1.56 otto 838: tempbuf);
1.20 deraadt 839: no_command = Yes;
840: } else
1.1 downsj 841: order_index = i;
1.51 otto 842: putr();
1.35 otto 843: } else
844: clear_message();
845: break;
846:
847: case CMD_pid:
1.37 jaredy 848: new_message(MT_standout, "Process ID to show: ");
1.63 otto 849: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 850: if (tempbuf[0] == '+' &&
851: tempbuf[1] == '\0') {
1.35 otto 852: ps.pid = (pid_t)-1;
853: ps.system = old_system;
854: } else {
855: unsigned long long num;
856: const char *errstr;
857:
1.56 otto 858: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 859: &errstr);
860: if (errstr != NULL || !find_pid(num)) {
861: new_message(MT_standout,
862: " %s: unknown pid",
1.56 otto 863: tempbuf);
1.35 otto 864: no_command = Yes;
865: } else {
866: if (ps.system == No)
867: old_system = No;
868: ps.pid = (pid_t)num;
869: ps.system = Yes;
870: }
871: }
1.51 otto 872: putr();
1.20 deraadt 873: } else
874: clear_message();
1.40 markus 875: break;
876:
877: case CMD_command:
878: show_args = (show_args == No) ? Yes : No;
1.41 tedu 879: break;
880:
881: case CMD_threads:
882: ps.threads = !ps.threads;
883: old_threads = ps.threads;
884: new_message(MT_standout | MT_delayed,
885: " %sisplaying threads.",
886: ps.threads ? "D" : "Not d");
1.45 otto 887: break;
888:
889: case CMD_grep:
890: new_message(MT_standout,
891: "Grep command name: ");
1.63 otto 892: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.45 otto 893: free(ps.command);
1.56 otto 894: if (tempbuf[0] == '+' &&
895: tempbuf[1] == '\0')
1.45 otto 896: ps.command = NULL;
897: else
1.75 deraadt 898: if ((ps.command = strdup(tempbuf)) ==
899: NULL)
1.74 lum 900: err(1, NULL);
1.51 otto 901: putr();
902: } else
903: clear_message();
904: break;
905:
906: case CMD_hl:
1.53 otto 907: new_message(MT_standout, "Process ID to highlight: ");
1.63 otto 908: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 909: if (tempbuf[0] == '+' &&
910: tempbuf[1] == '\0') {
1.51 otto 911: hlpid = -1;
912: } else {
913: unsigned long long num;
914: const char *errstr;
915:
1.56 otto 916: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 917: &errstr);
918: if (errstr != NULL || !find_pid(num)) {
919: new_message(MT_standout,
920: " %s: unknown pid",
1.56 otto 921: tempbuf);
1.51 otto 922: no_command = Yes;
923: } else
924: hlpid = (pid_t)num;
925: }
926: putr();
1.45 otto 927: } else
928: clear_message();
1.20 deraadt 929: break;
1.1 downsj 930:
1.47 otto 931: case CMD_add:
932: ps.uid = (uid_t)-1; /* uid */
1.78 brynet 933: ps.huid = (uid_t)-1;
1.47 otto 934: ps.pid = (pid_t)-1; /* pid */
935: ps.system = old_system;
936: ps.command = NULL; /* grep */
1.51 otto 937: hlpid = -1;
1.47 otto 938: break;
1.68 tedu 939: case CMD_cpus:
940: combine_cpus = !combine_cpus;
941: max_topn = display_resize();
942: reset_display();
943: break;
1.20 deraadt 944: default:
945: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 946: putr();
1.1 downsj 947: }
948: }
949:
1.20 deraadt 950: /* flush out stuff that may have been written */
951: fflush(stdout);
952: return 0;
1.1 downsj 953: }
954:
1.20 deraadt 955:
1.1 downsj 956: /*
957: * reset_display() - reset all the display routine pointers so that entire
958: * screen will get redrawn.
959: */
1.19 pvalchev 960: static void
961: reset_display(void)
1.1 downsj 962: {
1.51 otto 963: if (smart_terminal) {
964: clear();
965: refresh();
966: }
1.1 downsj 967: }
968:
1.34 deraadt 969: /* ARGSUSED */
1.19 pvalchev 970: void
1.20 deraadt 971: leave(int signo)
1.1 downsj 972: {
1.20 deraadt 973: leaveflag = 1;
1.1 downsj 974: }
975:
1.34 deraadt 976: /* ARGSUSED */
1.19 pvalchev 977: void
1.20 deraadt 978: tstop(int signo)
1.1 downsj 979: {
1.20 deraadt 980: tstopflag = 1;
1.1 downsj 981: }
982:
1.34 deraadt 983: /* ARGSUSED */
1.19 pvalchev 984: void
1.51 otto 985: sigwinch(int signo)
1.1 downsj 986: {
1.20 deraadt 987: winchflag = 1;
1.1 downsj 988: }
989:
1.34 deraadt 990: /* ARGSUSED */
1.19 pvalchev 991: void
1.20 deraadt 992: onalrm(int signo)
1.1 downsj 993: {
994: }
995:
1.19 pvalchev 996: void
1.20 deraadt 997: quit(int ret)
1.1 downsj 998: {
1.20 deraadt 999: end_screen();
1000: exit(ret);
1.1 downsj 1001: }