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1.78 ! brynet 1: /* $OpenBSD: top.c,v 1.77 2012/04/20 16:36:11 pirofti 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);
! 156: } else if ((ps.uid = userid(optarg)) == (uid_t)-1)
1.61 otto 157: new_message(MT_delayed, "%s: unknown user",
158: optarg);
1.20 deraadt 159: break;
1.1 downsj 160:
1.35 otto 161: case 'p': { /* display only process id */
162: const char *errstr;
163:
1.55 otto 164: i = strtonum(optarg, 0, INT_MAX, &errstr);
1.61 otto 165: if (errstr != NULL || !find_pid(i))
166: new_message(MT_delayed, "%s: unknown pid",
167: optarg);
168: else {
169: ps.pid = (pid_t)i;
170: ps.system = Yes;
1.35 otto 171: }
172: break;
173: }
174:
1.20 deraadt 175: case 'S': /* show system processes */
1.67 jmc 176: ps.system = !ps.system;
177: old_system = !old_system;
1.20 deraadt 178: break;
179:
1.76 jsing 180: case 'H': /* show threads */
1.41 tedu 181: ps.threads = Yes;
182: old_threads = Yes;
183: break;
184:
1.20 deraadt 185: case 'I': /* show idle processes */
186: ps.idle = !ps.idle;
187: break;
188:
189: case 'i': /* go interactive regardless */
190: interactive = Yes;
191: break;
192:
193: case 'n': /* batch, or non-interactive */
194: case 'b':
195: interactive = No;
196: break;
197:
198: case 'd': /* number of displays to show */
199: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
200: displays = i;
1.66 sthen 201: if (displays == 1)
202: interactive = No;
1.20 deraadt 203: break;
1.32 deraadt 204: }
1.60 otto 205: new_message(MT_delayed,
206: "warning: display count should be positive "
1.22 deraadt 207: "-- option ignored");
1.20 deraadt 208: break;
209:
210: case 's':
211: delay = strtod(optarg, &endp);
212:
1.59 otto 213: if (delay >= 0 && delay <= 1000000 && *endp == '\0')
1.20 deraadt 214: break;
215:
1.60 otto 216: new_message(MT_delayed,
217: "warning: delay should be a non-negative number"
1.22 deraadt 218: " -- using default");
1.20 deraadt 219: delay = Default_DELAY;
220: break;
221:
222: case 'q': /* be quick about it */
223: /* only allow this if user is really root */
224: if (getuid() == 0) {
225: /* be very un-nice! */
226: (void) nice(-20);
227: break;
228: }
1.60 otto 229: new_message(MT_delayed,
230: "warning: `-q' option can only be used by root");
1.20 deraadt 231: break;
232:
233: case 'o': /* select sort order */
234: order_name = optarg;
235: break;
236:
1.45 otto 237: case 'g': /* grep command name */
1.74 lum 238: free(ps.command);
1.75 deraadt 239: if ((ps.command = strdup(optarg)) == NULL)
1.74 lum 240: err(1, NULL);
1.45 otto 241: break;
242:
1.20 deraadt 243: default:
244: usage();
245: exit(1);
1.1 downsj 246: }
1.20 deraadt 247: }
1.1 downsj 248:
1.20 deraadt 249: /* get count of top processes to display (if any) */
250: if (optind < ac) {
251: if ((topn = atoiwi(av[optind])) == Invalid) {
1.60 otto 252: new_message(MT_delayed,
253: "warning: process count should "
1.49 otto 254: "be a non-negative number -- using default");
1.46 otto 255: topn = Infinity;
1.1 downsj 256: }
1.20 deraadt 257: #if Default_TOPN == Infinity
1.1 downsj 258: else
1.20 deraadt 259: topn_specified = Yes;
260: #endif
261: }
262: }
1.1 downsj 263:
1.20 deraadt 264: struct system_info system_info;
265: struct statics statics;
1.1 downsj 266:
1.20 deraadt 267: int
268: main(int argc, char *argv[])
269: {
270: char *uname_field = "USERNAME", *header_text, *env_top;
1.77 pirofti 271: char *(*get_userid)(uid_t) = username;
272: char **preset_argv = NULL, **av = argv;
273: int preset_argc = 0, ac = argc, active_procs, i;
1.20 deraadt 274: sigset_t mask, oldmask;
275: time_t curr_time;
276: caddr_t processes;
1.1 downsj 277:
1.20 deraadt 278: /* set the buffer for stdout */
279: #ifdef DEBUG
280: setbuffer(stdout, NULL, 0);
1.1 downsj 281: #else
1.20 deraadt 282: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 283: #endif
284:
1.20 deraadt 285: /* initialize some selection options */
286: ps.idle = Yes;
287: ps.system = No;
1.21 millert 288: ps.uid = (uid_t)-1;
1.78 ! brynet 289: ps.huid = (uid_t)-1;
1.35 otto 290: ps.pid = (pid_t)-1;
1.20 deraadt 291: ps.command = NULL;
292:
293: /* get preset options from the environment */
294: if ((env_top = getenv("TOP")) != NULL) {
295: av = preset_argv = argparse(env_top, &preset_argc);
296: ac = preset_argc;
297:
298: /*
299: * set the dummy argument to an explanatory message, in case
300: * getopt encounters a bad argument
301: */
302: preset_argv[0] = "while processing environment";
303: }
304: /* process options */
305: do {
306: /*
307: * if we're done doing the presets, then process the real
308: * arguments
309: */
310: if (preset_argc == 0) {
311: ac = argc;
312: av = argv;
313: optind = 1;
314: }
315: parseargs(ac, av);
316: i = preset_argc;
317: preset_argc = 0;
318: } while (i != 0);
319:
320: /* set constants for username/uid display correctly */
321: if (!do_unames) {
322: uname_field = " UID ";
1.26 millert 323: get_userid = format_uid;
1.20 deraadt 324: }
325: /* initialize the kernel memory interface */
326: if (machine_init(&statics) == -1)
1.1 downsj 327: exit(1);
1.20 deraadt 328:
329: /* determine sorting order index, if necessary */
330: if (order_name != NULL) {
331: if ((order_index = string_index(order_name,
332: statics.order_names)) == -1) {
1.69 tedu 333: char **pp, msg[512];
1.20 deraadt 334:
1.60 otto 335: snprintf(msg, sizeof(msg),
336: "'%s' is not a recognized sorting order",
1.22 deraadt 337: order_name);
1.60 otto 338: strlcat(msg, ". Valid are:", sizeof(msg));
1.20 deraadt 339: pp = statics.order_names;
1.60 otto 340: while (*pp != NULL) {
341: strlcat(msg, " ", sizeof(msg));
342: strlcat(msg, *pp++, sizeof(msg));
343: }
344: new_message(MT_delayed, msg);
1.62 otto 345: order_index = 0;
1.20 deraadt 346: }
1.1 downsj 347: }
348:
1.20 deraadt 349: /* initialize termcap */
350: init_termcap(interactive);
351:
352: /* get the string to use for the process area header */
353: header_text = format_header(uname_field);
354:
355: /* initialize display interface */
1.58 otto 356: max_topn = display_init(&statics);
357:
1.20 deraadt 358: /* print warning if user requested more processes than we can display */
1.60 otto 359: if (topn > max_topn)
360: new_message(MT_delayed,
361: "warning: this terminal can only display %d processes",
1.22 deraadt 362: max_topn);
1.20 deraadt 363: /* adjust for topn == Infinity */
364: if (topn == Infinity) {
365: /*
366: * For smart terminals, infinity really means everything that can
367: * be displayed, or Largest.
368: * On dumb terminals, infinity means every process in the system!
369: * We only really want to do that if it was explicitly specified.
370: * This is always the case when "Default_TOPN != Infinity". But if
371: * topn wasn't explicitly specified and we are on a dumb terminal
372: * and the default is Infinity, then (and only then) we use
373: * "Nominal_TOPN" instead.
374: */
1.1 downsj 375: #if Default_TOPN == Infinity
1.20 deraadt 376: topn = smart_terminal ? Largest :
377: (topn_specified ? Largest : Nominal_TOPN);
378: #else
379: topn = Largest;
1.1 downsj 380: #endif
381: }
1.20 deraadt 382: /* set header display accordingly */
383: display_header(topn > 0);
1.1 downsj 384:
1.20 deraadt 385: /* determine interactive state */
386: if (interactive == Maybe)
387: interactive = smart_terminal;
1.1 downsj 388:
1.20 deraadt 389: /* if # of displays not specified, fill it in */
390: if (displays == 0)
391: displays = smart_terminal ? Infinity : 1;
1.1 downsj 392:
393: /*
1.20 deraadt 394: * block interrupt signals while setting up the screen and the
395: * handlers
1.1 downsj 396: */
1.20 deraadt 397: sigemptyset(&mask);
398: sigaddset(&mask, SIGINT);
399: sigaddset(&mask, SIGQUIT);
400: sigaddset(&mask, SIGTSTP);
401: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.57 otto 402: if (interactive)
403: init_screen();
1.20 deraadt 404: (void) signal(SIGINT, leave);
1.30 deraadt 405: siginterrupt(SIGINT, 1);
1.20 deraadt 406: (void) signal(SIGQUIT, leave);
407: (void) signal(SIGTSTP, tstop);
1.51 otto 408: if (smart_terminal)
409: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 410: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.7 deraadt 411: restart:
1.1 downsj 412:
1.20 deraadt 413: /*
414: * main loop -- repeat while display count is positive or while it
415: * indicates infinity (by being -1)
416: */
417: while ((displays == -1) || (displays-- > 0)) {
1.70 otto 418: if (winchflag) {
419: /*
420: * reascertain the screen
421: * dimensions
422: */
423: get_screensize();
424: resizeterm(screen_length, screen_width + 1);
425:
426: /* tell display to resize */
427: max_topn = display_resize();
428:
429: /* reset the signal handler */
430: (void) signal(SIGWINCH, sigwinch);
431:
432: reset_display();
433: winchflag = 0;
434: }
435:
1.20 deraadt 436: /* get the current stats */
437: get_system_info(&system_info);
438:
439: /* get the current set of processes */
440: processes = get_process_info(&system_info, &ps,
441: proc_compares[order_index]);
442:
443: /* display the load averages */
1.51 otto 444: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 445:
446: /* display the current time */
447: /* this method of getting the time SHOULD be fairly portable */
448: time(&curr_time);
449: i_timeofday(&curr_time);
450:
451: /* display process state breakdown */
1.51 otto 452: i_procstates(system_info.p_total, system_info.procstates);
1.20 deraadt 453:
454: /* display the cpu state percentage breakdown */
1.51 otto 455: i_cpustates(system_info.cpustates);
1.1 downsj 456:
1.20 deraadt 457: /* display memory stats */
1.51 otto 458: i_memory(system_info.memory);
1.1 downsj 459:
1.20 deraadt 460: /* handle message area */
1.51 otto 461: i_message();
1.1 downsj 462:
1.20 deraadt 463: /* update the header area */
1.51 otto 464: i_header(header_text);
1.20 deraadt 465:
1.63 otto 466: if (topn == Infinity) {
467: #if Default_TOPN == Infinity
468: topn = smart_terminal ? Largest :
469: (topn_specified ? Largest : Nominal_TOPN);
470: #else
471: topn = Largest;
472: #endif
473: }
474:
1.20 deraadt 475: if (topn > 0) {
476: /* determine number of processes to actually display */
477: /*
478: * this number will be the smallest of: active
479: * processes, number user requested, number current
480: * screen accommodates
481: */
482: active_procs = system_info.p_active;
483: if (active_procs > topn)
484: active_procs = topn;
485: if (active_procs > max_topn)
486: active_procs = max_topn;
487: /* now show the top "n" processes. */
1.51 otto 488: for (i = 0; i < active_procs; i++) {
489: pid_t pid;
490: char * s;
491:
492: s = format_next_process(processes, get_userid,
493: &pid);
494: i_process(i, s, pid == hlpid);
495: }
1.54 otto 496: }
1.20 deraadt 497:
498: /* do end-screen processing */
1.52 deraadt 499: u_endscreen();
1.20 deraadt 500:
501: /* now, flush the output buffer */
502: fflush(stdout);
503:
1.51 otto 504: if (smart_terminal)
505: refresh();
506:
1.20 deraadt 507: /* only do the rest if we have more displays to show */
508: if (displays) {
509: /* switch out for new display on smart terminals */
510: no_command = Yes;
511: if (!interactive) {
512: /* set up alarm */
513: (void) signal(SIGALRM, onalrm);
514: (void) alarm((unsigned) delay);
515:
516: /* wait for the rest of it .... */
517: pause();
1.42 otto 518: if (leaveflag)
519: exit(0);
520: if (tstopflag) {
521: (void) signal(SIGTSTP, SIG_DFL);
522: (void) kill(0, SIGTSTP);
523: /* reset the signal handler */
524: (void) signal(SIGTSTP, tstop);
525: tstopflag = 0;
526: }
1.20 deraadt 527: } else {
528: while (no_command)
529: if (rundisplay())
530: goto restart;
531: }
532: }
533: }
1.1 downsj 534:
1.20 deraadt 535: quit(0);
536: /* NOTREACHED */
537: return (0);
538: }
1.7 deraadt 539:
1.20 deraadt 540: int
541: rundisplay(void)
542: {
1.72 lum 543: static char tempbuf[TEMPBUFSIZE];
1.20 deraadt 544: sigset_t mask;
545: char ch, *iptr;
546: int change, i;
1.28 deraadt 547: struct pollfd pfd[1];
1.78 ! brynet 548: uid_t uid, huid;
1.76 jsing 549: static char command_chars[] = "\f qh?en#sdkriIuSopCHg+P1";
1.7 deraadt 550:
1.20 deraadt 551: /*
552: * assume valid command unless told
553: * otherwise
554: */
555: no_command = No;
1.7 deraadt 556:
1.20 deraadt 557: /*
558: * set up arguments for select with
559: * timeout
560: */
1.28 deraadt 561: pfd[0].fd = STDIN_FILENO;
562: pfd[0].events = POLLIN;
1.20 deraadt 563:
1.42 otto 564: if (leaveflag)
565: quit(0);
1.20 deraadt 566: if (tstopflag) {
567: /* move to the lower left */
568: end_screen();
569: fflush(stdout);
570:
571: /*
572: * default the signal handler
573: * action
574: */
575: (void) signal(SIGTSTP, SIG_DFL);
576:
577: /*
578: * unblock the signal and
579: * send ourselves one
580: */
581: sigemptyset(&mask);
582: sigaddset(&mask, SIGTSTP);
583: sigprocmask(SIG_UNBLOCK, &mask, NULL);
584: (void) kill(0, SIGTSTP);
585:
586: /* reset the signal handler */
587: (void) signal(SIGTSTP, tstop);
588:
589: /* reinit screen */
590: reinit_screen();
591: reset_display();
592: tstopflag = 0;
593: return 1;
594: }
595: /*
596: * wait for either input or the end
597: * of the delay period
598: */
1.33 deraadt 599: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 600: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 601: char *errmsg;
1.30 deraadt 602: ssize_t len;
1.20 deraadt 603:
604: clear_message();
605:
606: /*
607: * now read it and convert to
608: * command strchr
609: */
1.30 deraadt 610: while (1) {
1.36 deraadt 611: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 612: if (len == -1 && errno == EINTR)
613: continue;
614: if (len == 0)
615: exit(1);
616: break;
617: }
1.20 deraadt 618: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 619: /* illegal command */
620: new_message(MT_standout, " Command not understood");
1.51 otto 621: putr();
1.1 downsj 622: no_command = Yes;
1.20 deraadt 623: fflush(stdout);
624: return (0);
625: }
626:
627: change = iptr - command_chars;
628:
629: switch (change) {
630: case CMD_redraw: /* redraw screen */
631: reset_display();
632: break;
633:
634: case CMD_update: /* merely update display */
635: /*
636: * is the load average high?
637: */
638: if (system_info.load_avg[0] > LoadMax) {
639: /* yes, go home for visual feedback */
640: go_home();
641: fflush(stdout);
1.1 downsj 642: }
1.20 deraadt 643: break;
644:
645: case CMD_quit: /* quit */
646: quit(0);
647: break;
648:
649: case CMD_help1: /* help */
650: case CMD_help2:
651: clear();
652: show_help();
1.51 otto 653: anykey();
654: clear();
1.20 deraadt 655: break;
656:
657: case CMD_errors: /* show errors */
658: if (error_count() == 0) {
659: new_message(MT_standout,
660: " Currently no errors to report.");
1.51 otto 661: putr();
1.20 deraadt 662: no_command = Yes;
663: } else {
1.1 downsj 664: clear();
1.20 deraadt 665: show_errors();
1.51 otto 666: anykey();
667: clear();
1.20 deraadt 668: }
669: break;
670:
671: case CMD_number1: /* new number */
672: case CMD_number2:
673: new_message(MT_standout,
674: "Number of processes to show: ");
1.63 otto 675:
676: if (readline(tempbuf, 8) > 0) {
1.73 lum 677: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 678: if (i > max_topn) {
1.65 otto 679: new_message(MT_standout |
680: MT_delayed,
1.63 otto 681: " This terminal can only "
682: "display %d processes.",
683: max_topn);
684: putr();
1.65 otto 685: }
686: if ((i > topn || i == Infinity)
1.64 otto 687: && topn == 0) {
1.63 otto 688: /* redraw the header */
689: display_header(Yes);
1.65 otto 690: } else if (i == 0)
691: display_header(No);
1.63 otto 692: topn = i;
693: } else {
694: new_message(MT_standout,
1.65 otto 695: "Processes should be a "
696: "non-negative number");
1.63 otto 697: putr();
698: no_command = Yes;
1.20 deraadt 699: }
1.63 otto 700: } else
701: clear_message();
1.20 deraadt 702: break;
703:
704: case CMD_delay: /* new seconds delay */
705: new_message(MT_standout, "Seconds to delay: ");
1.63 otto 706: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.20 deraadt 707: char *endp;
1.56 otto 708: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 709:
1.71 lum 710: if (newdelay >= 0 && newdelay <= 1000000 &&
1.48 otto 711: *endp == '\0') {
1.16 hugh 712: delay = newdelay;
1.48 otto 713: } else {
714: new_message(MT_standout,
715: "Delay should be a non-negative number");
1.51 otto 716: putr();
1.48 otto 717: no_command = Yes;
718: }
719:
720: } else
721: clear_message();
1.20 deraadt 722: break;
723:
724: case CMD_displays: /* change display count */
725: new_message(MT_standout,
726: "Displays to show (currently %s): ",
727: displays == -1 ? "infinite" :
728: itoa(displays));
729:
1.63 otto 730: if (readline(tempbuf, 10) > 0) {
1.73 lum 731: if ((i = atoiwi(tempbuf)) != Invalid) {
1.63 otto 732: if (i == 0)
733: quit(0);
734: displays = i;
735: } else {
736: new_message(MT_standout,
737: "Displays should be a non-negative number");
738: putr();
739: no_command = Yes;
740: }
741: } else
742: clear_message();
1.20 deraadt 743: break;
744:
745: case CMD_kill: /* kill program */
746: new_message(0, "kill ");
1.63 otto 747: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 748: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 749: new_message(MT_standout, "%s", errmsg);
1.51 otto 750: putr();
1.1 downsj 751: no_command = Yes;
752: }
1.20 deraadt 753: } else
754: clear_message();
755: break;
756:
757: case CMD_renice: /* renice program */
758: new_message(0, "renice ");
1.63 otto 759: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 760: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 761: new_message(MT_standout, "%s", errmsg);
1.51 otto 762: putr();
1.1 downsj 763: no_command = Yes;
764: }
1.20 deraadt 765: } else
766: clear_message();
767: break;
1.1 downsj 768:
1.20 deraadt 769: case CMD_idletog:
770: case CMD_idletog2:
771: ps.idle = !ps.idle;
772: new_message(MT_standout | MT_delayed,
773: " %sisplaying idle processes.",
774: ps.idle ? "D" : "Not d");
1.51 otto 775: putr();
1.20 deraadt 776: break;
1.1 downsj 777:
1.20 deraadt 778: case CMD_user:
779: new_message(MT_standout,
780: "Username to show: ");
1.63 otto 781: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.78 ! brynet 782: if ((tempbuf[0] == '+' || tempbuf[0] == '-') &&
1.56 otto 783: tempbuf[1] == '\0') {
1.21 millert 784: ps.uid = (uid_t)-1;
1.78 ! brynet 785: ps.huid = (uid_t)-1;
! 786: } else if (tempbuf[0] == '-') {
! 787: if ((huid = userid(tempbuf+1)) == (uid_t)-1) {
! 788: new_message(MT_standout,
! 789: " %s: unknown user", tempbuf+1);
! 790: no_command = Yes;
! 791: } else {
! 792: ps.huid = huid;
! 793: ps.uid = (uid_t)-1;
! 794: }
1.56 otto 795: } else if ((uid = userid(tempbuf)) == (uid_t)-1) {
1.78 ! brynet 796: new_message(MT_standout,
! 797: " %s: unknown user", tempbuf);
! 798: no_command = Yes;
! 799: } else {
1.21 millert 800: ps.uid = uid;
1.78 ! brynet 801: ps.huid = (uid_t)-1;
! 802: }
1.51 otto 803: putr();
1.20 deraadt 804: } else
805: clear_message();
806: break;
1.12 fgsch 807:
1.20 deraadt 808: case CMD_system:
809: ps.system = !ps.system;
1.35 otto 810: old_system = ps.system;
1.20 deraadt 811: new_message(MT_standout | MT_delayed,
812: " %sisplaying system processes.",
813: ps.system ? "D" : "Not d");
814: break;
815:
816: case CMD_order:
817: new_message(MT_standout,
818: "Order to sort: ");
1.63 otto 819: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 820: if ((i = string_index(tempbuf,
1.20 deraadt 821: statics.order_names)) == -1) {
822: new_message(MT_standout,
823: " %s: unrecognized sorting order",
1.56 otto 824: tempbuf);
1.20 deraadt 825: no_command = Yes;
826: } else
1.1 downsj 827: order_index = i;
1.51 otto 828: putr();
1.35 otto 829: } else
830: clear_message();
831: break;
832:
833: case CMD_pid:
1.37 jaredy 834: new_message(MT_standout, "Process ID to show: ");
1.63 otto 835: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 836: if (tempbuf[0] == '+' &&
837: tempbuf[1] == '\0') {
1.35 otto 838: ps.pid = (pid_t)-1;
839: ps.system = old_system;
840: } else {
841: unsigned long long num;
842: const char *errstr;
843:
1.56 otto 844: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 845: &errstr);
846: if (errstr != NULL || !find_pid(num)) {
847: new_message(MT_standout,
848: " %s: unknown pid",
1.56 otto 849: tempbuf);
1.35 otto 850: no_command = Yes;
851: } else {
852: if (ps.system == No)
853: old_system = No;
854: ps.pid = (pid_t)num;
855: ps.system = Yes;
856: }
857: }
1.51 otto 858: putr();
1.20 deraadt 859: } else
860: clear_message();
1.40 markus 861: break;
862:
863: case CMD_command:
864: show_args = (show_args == No) ? Yes : No;
1.41 tedu 865: break;
866:
867: case CMD_threads:
868: ps.threads = !ps.threads;
869: old_threads = ps.threads;
870: new_message(MT_standout | MT_delayed,
871: " %sisplaying threads.",
872: ps.threads ? "D" : "Not d");
1.45 otto 873: break;
874:
875: case CMD_grep:
876: new_message(MT_standout,
877: "Grep command name: ");
1.63 otto 878: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.45 otto 879: free(ps.command);
1.56 otto 880: if (tempbuf[0] == '+' &&
881: tempbuf[1] == '\0')
1.45 otto 882: ps.command = NULL;
883: else
1.75 deraadt 884: if ((ps.command = strdup(tempbuf)) ==
885: NULL)
1.74 lum 886: err(1, NULL);
1.51 otto 887: putr();
888: } else
889: clear_message();
890: break;
891:
892: case CMD_hl:
1.53 otto 893: new_message(MT_standout, "Process ID to highlight: ");
1.63 otto 894: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 895: if (tempbuf[0] == '+' &&
896: tempbuf[1] == '\0') {
1.51 otto 897: hlpid = -1;
898: } else {
899: unsigned long long num;
900: const char *errstr;
901:
1.56 otto 902: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 903: &errstr);
904: if (errstr != NULL || !find_pid(num)) {
905: new_message(MT_standout,
906: " %s: unknown pid",
1.56 otto 907: tempbuf);
1.51 otto 908: no_command = Yes;
909: } else
910: hlpid = (pid_t)num;
911: }
912: putr();
1.45 otto 913: } else
914: clear_message();
1.20 deraadt 915: break;
1.1 downsj 916:
1.47 otto 917: case CMD_add:
918: ps.uid = (uid_t)-1; /* uid */
1.78 ! brynet 919: ps.huid = (uid_t)-1;
1.47 otto 920: ps.pid = (pid_t)-1; /* pid */
921: ps.system = old_system;
922: ps.command = NULL; /* grep */
1.51 otto 923: hlpid = -1;
1.47 otto 924: break;
1.68 tedu 925: case CMD_cpus:
926: combine_cpus = !combine_cpus;
927: max_topn = display_resize();
928: reset_display();
929: break;
1.20 deraadt 930: default:
931: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 932: putr();
1.1 downsj 933: }
934: }
935:
1.20 deraadt 936: /* flush out stuff that may have been written */
937: fflush(stdout);
938: return 0;
1.1 downsj 939: }
940:
1.20 deraadt 941:
1.1 downsj 942: /*
943: * reset_display() - reset all the display routine pointers so that entire
944: * screen will get redrawn.
945: */
1.19 pvalchev 946: static void
947: reset_display(void)
1.1 downsj 948: {
1.51 otto 949: if (smart_terminal) {
950: clear();
951: refresh();
952: }
1.1 downsj 953: }
954:
1.34 deraadt 955: /* ARGSUSED */
1.19 pvalchev 956: void
1.20 deraadt 957: leave(int signo)
1.1 downsj 958: {
1.20 deraadt 959: leaveflag = 1;
1.1 downsj 960: }
961:
1.34 deraadt 962: /* ARGSUSED */
1.19 pvalchev 963: void
1.20 deraadt 964: tstop(int signo)
1.1 downsj 965: {
1.20 deraadt 966: tstopflag = 1;
1.1 downsj 967: }
968:
1.34 deraadt 969: /* ARGSUSED */
1.19 pvalchev 970: void
1.51 otto 971: sigwinch(int signo)
1.1 downsj 972: {
1.20 deraadt 973: winchflag = 1;
1.1 downsj 974: }
975:
1.34 deraadt 976: /* ARGSUSED */
1.19 pvalchev 977: void
1.20 deraadt 978: onalrm(int signo)
1.1 downsj 979: {
980: }
981:
1.19 pvalchev 982: void
1.20 deraadt 983: quit(int ret)
1.1 downsj 984: {
1.20 deraadt 985: end_screen();
986: exit(ret);
1.1 downsj 987: }