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1.66 ! sthen 1: /* $OpenBSD: top.c,v 1.65 2007/11/29 10:06:30 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: 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;
1.1 downsj 86:
87: #if Default_TOPN == Infinity
1.20 deraadt 88: char topn_specified = No;
1.1 downsj 89: #endif
90:
1.20 deraadt 91: /*
92: * these defines enumerate the "strchr"s of the commands in
93: * command_chars
94: */
1.1 downsj 95: #define CMD_redraw 0
96: #define CMD_update 1
97: #define CMD_quit 2
98: #define CMD_help1 3
99: #define CMD_help2 4
1.20 deraadt 100: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
101: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 102: #define CMD_number1 6
103: #define CMD_number2 7
104: #define CMD_delay 8
105: #define CMD_displays 9
106: #define CMD_kill 10
107: #define CMD_renice 11
1.32 deraadt 108: #define CMD_idletog 12
109: #define CMD_idletog2 13
1.1 downsj 110: #define CMD_user 14
1.12 fgsch 111: #define CMD_system 15
1.32 deraadt 112: #define CMD_order 16
1.35 otto 113: #define CMD_pid 17
1.40 markus 114: #define CMD_command 18
1.41 tedu 115: #define CMD_threads 19
1.45 otto 116: #define CMD_grep 20
1.47 otto 117: #define CMD_add 21
1.51 otto 118: #define CMD_hl 22
1.1 downsj 119:
1.27 deraadt 120: static void
1.20 deraadt 121: usage(void)
122: {
1.22 deraadt 123: extern char *__progname;
124:
1.20 deraadt 125: fprintf(stderr,
1.50 jmc 126: "usage: %s [-bCIinqSTu] [-d count] [-g string] [-o field] "
127: "[-p pid] [-s time]\n\t[-U user] [number]\n",
1.22 deraadt 128: __progname);
1.20 deraadt 129: }
130:
1.27 deraadt 131: static void
1.20 deraadt 132: parseargs(int ac, char **av)
133: {
134: char *endp;
135: int i;
136:
1.45 otto 137: while ((i = getopt(ac, av, "STICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 138: switch (i) {
1.44 otto 139: case 'C':
140: show_args = Yes;
141: break;
142:
1.20 deraadt 143: case 'u': /* toggle uid/username display */
144: do_unames = !do_unames;
145: break;
146:
147: case 'U': /* display only username's processes */
1.61 otto 148: if ((ps.uid = userid(optarg)) == (uid_t)-1)
149: new_message(MT_delayed, "%s: unknown user",
150: optarg);
1.20 deraadt 151: break;
1.1 downsj 152:
1.35 otto 153: case 'p': { /* display only process id */
154: const char *errstr;
155:
1.55 otto 156: i = strtonum(optarg, 0, INT_MAX, &errstr);
1.61 otto 157: if (errstr != NULL || !find_pid(i))
158: new_message(MT_delayed, "%s: unknown pid",
159: optarg);
160: else {
161: ps.pid = (pid_t)i;
162: ps.system = Yes;
1.35 otto 163: }
164: break;
165: }
166:
1.20 deraadt 167: case 'S': /* show system processes */
1.35 otto 168: ps.system = Yes;
169: old_system = Yes;
1.20 deraadt 170: break;
171:
1.41 tedu 172: case 'T': /* show threads */
173: ps.threads = Yes;
174: old_threads = Yes;
175: break;
176:
1.20 deraadt 177: case 'I': /* show idle processes */
178: ps.idle = !ps.idle;
179: break;
180:
181: case 'i': /* go interactive regardless */
182: interactive = Yes;
183: break;
184:
185: case 'n': /* batch, or non-interactive */
186: case 'b':
187: interactive = No;
188: break;
189:
190: case 'd': /* number of displays to show */
191: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
192: displays = i;
1.66 ! sthen 193: if (displays == 1)
! 194: interactive = No;
1.20 deraadt 195: break;
1.32 deraadt 196: }
1.60 otto 197: new_message(MT_delayed,
198: "warning: display count should be positive "
1.22 deraadt 199: "-- option ignored");
1.20 deraadt 200: break;
201:
202: case 's':
203: delay = strtod(optarg, &endp);
204:
1.59 otto 205: if (delay >= 0 && delay <= 1000000 && *endp == '\0')
1.20 deraadt 206: break;
207:
1.60 otto 208: new_message(MT_delayed,
209: "warning: delay should be a non-negative number"
1.22 deraadt 210: " -- using default");
1.20 deraadt 211: delay = Default_DELAY;
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: }
1.60 otto 221: new_message(MT_delayed,
222: "warning: `-q' option can only be used by root");
1.20 deraadt 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) {
1.60 otto 242: new_message(MT_delayed,
243: "warning: process count should "
1.49 otto 244: "be a non-negative number -- using default");
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) {
1.60 otto 321: char **pp, msg[80];
1.20 deraadt 322:
1.60 otto 323: snprintf(msg, sizeof(msg),
324: "'%s' is not a recognized sorting order",
1.22 deraadt 325: order_name);
1.60 otto 326: strlcat(msg, ". Valid are:", sizeof(msg));
1.20 deraadt 327: pp = statics.order_names;
1.60 otto 328: while (*pp != NULL) {
329: strlcat(msg, " ", sizeof(msg));
330: strlcat(msg, *pp++, sizeof(msg));
331: }
332: new_message(MT_delayed, msg);
1.62 otto 333: order_index = 0;
1.20 deraadt 334: }
1.1 downsj 335: }
336:
1.20 deraadt 337: /* initialize termcap */
338: init_termcap(interactive);
339:
340: /* get the string to use for the process area header */
341: header_text = format_header(uname_field);
342:
343: /* initialize display interface */
1.58 otto 344: max_topn = display_init(&statics);
345:
1.20 deraadt 346: /* print warning if user requested more processes than we can display */
1.60 otto 347: if (topn > max_topn)
348: new_message(MT_delayed,
349: "warning: this terminal can only display %d processes",
1.22 deraadt 350: max_topn);
1.20 deraadt 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);
1.57 otto 390: if (interactive)
391: init_screen();
1.20 deraadt 392: (void) signal(SIGINT, leave);
1.30 deraadt 393: siginterrupt(SIGINT, 1);
1.20 deraadt 394: (void) signal(SIGQUIT, leave);
395: (void) signal(SIGTSTP, tstop);
1.51 otto 396: if (smart_terminal)
397: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 398: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.7 deraadt 399: restart:
1.1 downsj 400:
1.20 deraadt 401: /*
402: * main loop -- repeat while display count is positive or while it
403: * indicates infinity (by being -1)
404: */
405: while ((displays == -1) || (displays-- > 0)) {
406: /* get the current stats */
407: get_system_info(&system_info);
408:
409: /* get the current set of processes */
410: processes = get_process_info(&system_info, &ps,
411: proc_compares[order_index]);
412:
413: /* display the load averages */
1.51 otto 414: i_loadave(system_info.last_pid, system_info.load_avg);
1.20 deraadt 415:
416: /* display the current time */
417: /* this method of getting the time SHOULD be fairly portable */
418: time(&curr_time);
419: i_timeofday(&curr_time);
420:
421: /* display process state breakdown */
1.51 otto 422: i_procstates(system_info.p_total, system_info.procstates);
1.20 deraadt 423:
424: /* display the cpu state percentage breakdown */
1.51 otto 425: i_cpustates(system_info.cpustates);
1.1 downsj 426:
1.20 deraadt 427: /* display memory stats */
1.51 otto 428: i_memory(system_info.memory);
1.1 downsj 429:
1.20 deraadt 430: /* handle message area */
1.51 otto 431: i_message();
1.1 downsj 432:
1.20 deraadt 433: /* update the header area */
1.51 otto 434: i_header(header_text);
1.20 deraadt 435:
1.63 otto 436: if (topn == Infinity) {
437: #if Default_TOPN == Infinity
438: topn = smart_terminal ? Largest :
439: (topn_specified ? Largest : Nominal_TOPN);
440: #else
441: topn = Largest;
442: #endif
443: }
444:
1.20 deraadt 445: if (topn > 0) {
446: /* determine number of processes to actually display */
447: /*
448: * this number will be the smallest of: active
449: * processes, number user requested, number current
450: * screen accommodates
451: */
452: active_procs = system_info.p_active;
453: if (active_procs > topn)
454: active_procs = topn;
455: if (active_procs > max_topn)
456: active_procs = max_topn;
457: /* now show the top "n" processes. */
1.51 otto 458: for (i = 0; i < active_procs; i++) {
459: pid_t pid;
460: char * s;
461:
462: s = format_next_process(processes, get_userid,
463: &pid);
464: i_process(i, s, pid == hlpid);
465: }
1.54 otto 466: }
1.20 deraadt 467:
468: /* do end-screen processing */
1.52 deraadt 469: u_endscreen();
1.20 deraadt 470:
471: /* now, flush the output buffer */
472: fflush(stdout);
473:
1.51 otto 474: if (smart_terminal)
475: refresh();
476:
1.20 deraadt 477: /* only do the rest if we have more displays to show */
478: if (displays) {
479: /* switch out for new display on smart terminals */
480: no_command = Yes;
481: if (!interactive) {
482: /* set up alarm */
483: (void) signal(SIGALRM, onalrm);
484: (void) alarm((unsigned) delay);
485:
486: /* wait for the rest of it .... */
487: pause();
1.42 otto 488: if (leaveflag)
489: exit(0);
490: if (tstopflag) {
491: (void) signal(SIGTSTP, SIG_DFL);
492: (void) kill(0, SIGTSTP);
493: /* reset the signal handler */
494: (void) signal(SIGTSTP, tstop);
495: tstopflag = 0;
496: }
1.20 deraadt 497: } else {
498: while (no_command)
499: if (rundisplay())
500: goto restart;
501: }
502: }
503: }
1.1 downsj 504:
1.20 deraadt 505: quit(0);
506: /* NOTREACHED */
507: return (0);
508: }
1.7 deraadt 509:
1.20 deraadt 510: int
511: rundisplay(void)
512: {
1.56 otto 513: static char tempbuf[50];
1.20 deraadt 514: sigset_t mask;
515: char ch, *iptr;
516: int change, i;
1.28 deraadt 517: struct pollfd pfd[1];
1.21 millert 518: uid_t uid;
1.51 otto 519: static char command_chars[] = "\f qh?en#sdkriIuSopCTg+P";
1.7 deraadt 520:
1.20 deraadt 521: /*
522: * assume valid command unless told
523: * otherwise
524: */
525: no_command = No;
1.7 deraadt 526:
1.20 deraadt 527: /*
528: * set up arguments for select with
529: * timeout
530: */
1.28 deraadt 531: pfd[0].fd = STDIN_FILENO;
532: pfd[0].events = POLLIN;
1.20 deraadt 533:
1.42 otto 534: if (leaveflag)
535: quit(0);
1.20 deraadt 536: if (tstopflag) {
537: /* move to the lower left */
538: end_screen();
539: fflush(stdout);
540:
541: /*
542: * default the signal handler
543: * action
544: */
545: (void) signal(SIGTSTP, SIG_DFL);
546:
547: /*
548: * unblock the signal and
549: * send ourselves one
550: */
551: sigemptyset(&mask);
552: sigaddset(&mask, SIGTSTP);
553: sigprocmask(SIG_UNBLOCK, &mask, NULL);
554: (void) kill(0, SIGTSTP);
555:
556: /* reset the signal handler */
557: (void) signal(SIGTSTP, tstop);
558:
559: /* reinit screen */
560: reinit_screen();
561: reset_display();
562: tstopflag = 0;
563: return 1;
564: }
565: if (winchflag) {
566: /*
567: * reascertain the screen
568: * dimensions
569: */
570: get_screensize();
1.51 otto 571: resizeterm(screen_length, screen_width + 1);
1.20 deraadt 572:
573: /* tell display to resize */
574: max_topn = display_resize();
575:
576: /* reset the signal handler */
1.51 otto 577: (void) signal(SIGWINCH, sigwinch);
1.20 deraadt 578:
579: reset_display();
580: winchflag = 0;
581: return 1;
582: }
583: /*
584: * wait for either input or the end
585: * of the delay period
586: */
1.33 deraadt 587: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 588: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 589: char *errmsg;
1.30 deraadt 590: ssize_t len;
1.20 deraadt 591:
592: clear_message();
593:
594: /*
595: * now read it and convert to
596: * command strchr
597: */
1.30 deraadt 598: while (1) {
1.36 deraadt 599: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 600: if (len == -1 && errno == EINTR)
601: continue;
602: if (len == 0)
603: exit(1);
604: break;
605: }
1.20 deraadt 606: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 607: /* illegal command */
608: new_message(MT_standout, " Command not understood");
1.51 otto 609: putr();
1.1 downsj 610: no_command = Yes;
1.20 deraadt 611: fflush(stdout);
612: return (0);
613: }
614:
615: change = iptr - command_chars;
616:
617: switch (change) {
618: case CMD_redraw: /* redraw screen */
619: reset_display();
620: break;
621:
622: case CMD_update: /* merely update display */
623: /*
624: * is the load average high?
625: */
626: if (system_info.load_avg[0] > LoadMax) {
627: /* yes, go home for visual feedback */
628: go_home();
629: fflush(stdout);
1.1 downsj 630: }
1.20 deraadt 631: break;
632:
633: case CMD_quit: /* quit */
634: quit(0);
635: break;
636:
637: case CMD_help1: /* help */
638: case CMD_help2:
639: clear();
640: show_help();
1.51 otto 641: anykey();
642: clear();
1.20 deraadt 643: break;
644:
645: case CMD_errors: /* show errors */
646: if (error_count() == 0) {
647: new_message(MT_standout,
648: " Currently no errors to report.");
1.51 otto 649: putr();
1.20 deraadt 650: no_command = Yes;
651: } else {
1.1 downsj 652: clear();
1.20 deraadt 653: show_errors();
1.51 otto 654: anykey();
655: clear();
1.20 deraadt 656: }
657: break;
658:
659: case CMD_number1: /* new number */
660: case CMD_number2:
661: new_message(MT_standout,
662: "Number of processes to show: ");
1.63 otto 663:
664: if (readline(tempbuf, 8) > 0) {
665: char *ptr;
666: ptr = tempbuf;
667: if ((i = atoiwi(ptr)) != Invalid) {
668: if (i > max_topn) {
1.65 otto 669: new_message(MT_standout |
670: MT_delayed,
1.63 otto 671: " This terminal can only "
672: "display %d processes.",
673: max_topn);
674: putr();
1.65 otto 675: }
676: if ((i > topn || i == Infinity)
1.64 otto 677: && topn == 0) {
1.63 otto 678: /* redraw the header */
679: display_header(Yes);
1.65 otto 680: } else if (i == 0)
681: display_header(No);
1.63 otto 682: topn = i;
683: } else {
684: new_message(MT_standout,
1.65 otto 685: "Processes should be a "
686: "non-negative number");
1.63 otto 687: putr();
688: no_command = Yes;
1.20 deraadt 689: }
1.63 otto 690: } else
691: clear_message();
1.20 deraadt 692: break;
693:
694: case CMD_delay: /* new seconds delay */
695: new_message(MT_standout, "Seconds to delay: ");
1.63 otto 696: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.20 deraadt 697: char *endp;
1.56 otto 698: double newdelay = strtod(tempbuf, &endp);
1.20 deraadt 699:
700: if (newdelay >= 0 && newdelay < 1000000 &&
1.48 otto 701: *endp == '\0') {
1.16 hugh 702: delay = newdelay;
1.48 otto 703: } else {
704: new_message(MT_standout,
705: "Delay should be a non-negative number");
1.51 otto 706: putr();
1.48 otto 707: no_command = Yes;
708: }
709:
710: } else
711: clear_message();
1.20 deraadt 712: break;
713:
714: case CMD_displays: /* change display count */
715: new_message(MT_standout,
716: "Displays to show (currently %s): ",
717: displays == -1 ? "infinite" :
718: itoa(displays));
719:
1.63 otto 720: if (readline(tempbuf, 10) > 0) {
721: char *ptr;
722: ptr = tempbuf;
723: if ((i = atoiwi(ptr)) != Invalid) {
724: if (i == 0)
725: quit(0);
726: displays = i;
727: } else {
728: new_message(MT_standout,
729: "Displays should be a non-negative number");
730: putr();
731: no_command = Yes;
732: }
733: } else
734: clear_message();
1.20 deraadt 735: break;
736:
737: case CMD_kill: /* kill program */
738: new_message(0, "kill ");
1.63 otto 739: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 740: if ((errmsg = kill_procs(tempbuf)) != NULL) {
1.4 millert 741: new_message(MT_standout, "%s", errmsg);
1.51 otto 742: putr();
1.1 downsj 743: no_command = Yes;
744: }
1.20 deraadt 745: } else
746: clear_message();
747: break;
748:
749: case CMD_renice: /* renice program */
750: new_message(0, "renice ");
1.63 otto 751: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 752: if ((errmsg = renice_procs(tempbuf)) != NULL) {
1.4 millert 753: new_message(MT_standout, "%s", errmsg);
1.51 otto 754: putr();
1.1 downsj 755: no_command = Yes;
756: }
1.20 deraadt 757: } else
758: clear_message();
759: break;
1.1 downsj 760:
1.20 deraadt 761: case CMD_idletog:
762: case CMD_idletog2:
763: ps.idle = !ps.idle;
764: new_message(MT_standout | MT_delayed,
765: " %sisplaying idle processes.",
766: ps.idle ? "D" : "Not d");
1.51 otto 767: putr();
1.20 deraadt 768: break;
1.1 downsj 769:
1.20 deraadt 770: case CMD_user:
771: new_message(MT_standout,
772: "Username to show: ");
1.63 otto 773: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 774: if (tempbuf[0] == '+' &&
775: tempbuf[1] == '\0') {
1.21 millert 776: ps.uid = (uid_t)-1;
1.56 otto 777: } else if ((uid = userid(tempbuf)) == (uid_t)-1) {
1.1 downsj 778: new_message(MT_standout,
1.56 otto 779: " %s: unknown user", tempbuf);
1.1 downsj 780: no_command = Yes;
1.20 deraadt 781: } else
1.21 millert 782: ps.uid = uid;
1.51 otto 783: putr();
1.20 deraadt 784: } else
785: clear_message();
786: break;
1.12 fgsch 787:
1.20 deraadt 788: case CMD_system:
789: ps.system = !ps.system;
1.35 otto 790: old_system = ps.system;
1.20 deraadt 791: new_message(MT_standout | MT_delayed,
792: " %sisplaying system processes.",
793: ps.system ? "D" : "Not d");
794: break;
795:
796: case CMD_order:
797: new_message(MT_standout,
798: "Order to sort: ");
1.63 otto 799: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 800: if ((i = string_index(tempbuf,
1.20 deraadt 801: statics.order_names)) == -1) {
802: new_message(MT_standout,
803: " %s: unrecognized sorting order",
1.56 otto 804: tempbuf);
1.20 deraadt 805: no_command = Yes;
806: } else
1.1 downsj 807: order_index = i;
1.51 otto 808: putr();
1.35 otto 809: } else
810: clear_message();
811: break;
812:
813: case CMD_pid:
1.37 jaredy 814: new_message(MT_standout, "Process ID to show: ");
1.63 otto 815: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 816: if (tempbuf[0] == '+' &&
817: tempbuf[1] == '\0') {
1.35 otto 818: ps.pid = (pid_t)-1;
819: ps.system = old_system;
820: } else {
821: unsigned long long num;
822: const char *errstr;
823:
1.56 otto 824: num = strtonum(tempbuf, 0, INT_MAX,
1.35 otto 825: &errstr);
826: if (errstr != NULL || !find_pid(num)) {
827: new_message(MT_standout,
828: " %s: unknown pid",
1.56 otto 829: tempbuf);
1.35 otto 830: no_command = Yes;
831: } else {
832: if (ps.system == No)
833: old_system = No;
834: ps.pid = (pid_t)num;
835: ps.system = Yes;
836: }
837: }
1.51 otto 838: putr();
1.20 deraadt 839: } else
840: clear_message();
1.40 markus 841: break;
842:
843: case CMD_command:
844: show_args = (show_args == No) ? Yes : No;
1.41 tedu 845: break;
846:
847: case CMD_threads:
848: ps.threads = !ps.threads;
849: old_threads = ps.threads;
850: new_message(MT_standout | MT_delayed,
851: " %sisplaying threads.",
852: ps.threads ? "D" : "Not d");
1.45 otto 853: break;
854:
855: case CMD_grep:
856: new_message(MT_standout,
857: "Grep command name: ");
1.63 otto 858: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.45 otto 859: free(ps.command);
1.56 otto 860: if (tempbuf[0] == '+' &&
861: tempbuf[1] == '\0')
1.45 otto 862: ps.command = NULL;
863: else
1.56 otto 864: ps.command = strdup(tempbuf);
1.51 otto 865: putr();
866: } else
867: clear_message();
868: break;
869:
870: case CMD_hl:
1.53 otto 871: new_message(MT_standout, "Process ID to highlight: ");
1.63 otto 872: if (readline(tempbuf, sizeof(tempbuf)) > 0) {
1.56 otto 873: if (tempbuf[0] == '+' &&
874: tempbuf[1] == '\0') {
1.51 otto 875: hlpid = -1;
876: } else {
877: unsigned long long num;
878: const char *errstr;
879:
1.56 otto 880: num = strtonum(tempbuf, 0, INT_MAX,
1.51 otto 881: &errstr);
882: if (errstr != NULL || !find_pid(num)) {
883: new_message(MT_standout,
884: " %s: unknown pid",
1.56 otto 885: tempbuf);
1.51 otto 886: no_command = Yes;
887: } else
888: hlpid = (pid_t)num;
889: }
890: putr();
1.45 otto 891: } else
892: clear_message();
1.20 deraadt 893: break;
1.1 downsj 894:
1.47 otto 895: case CMD_add:
896: ps.uid = (uid_t)-1; /* uid */
897: ps.pid = (pid_t)-1; /* pid */
898: ps.system = old_system;
899: ps.command = NULL; /* grep */
1.51 otto 900: hlpid = -1;
1.47 otto 901: break;
902:
1.20 deraadt 903: default:
904: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.51 otto 905: putr();
1.1 downsj 906: }
907: }
908:
1.20 deraadt 909: /* flush out stuff that may have been written */
910: fflush(stdout);
911: return 0;
1.1 downsj 912: }
913:
1.20 deraadt 914:
1.1 downsj 915: /*
916: * reset_display() - reset all the display routine pointers so that entire
917: * screen will get redrawn.
918: */
1.19 pvalchev 919: static void
920: reset_display(void)
1.1 downsj 921: {
1.51 otto 922: if (smart_terminal) {
923: clear();
924: refresh();
925: }
1.1 downsj 926: }
927:
1.34 deraadt 928: /* ARGSUSED */
1.19 pvalchev 929: void
1.20 deraadt 930: leave(int signo)
1.1 downsj 931: {
1.20 deraadt 932: leaveflag = 1;
1.1 downsj 933: }
934:
1.34 deraadt 935: /* ARGSUSED */
1.19 pvalchev 936: void
1.20 deraadt 937: tstop(int signo)
1.1 downsj 938: {
1.20 deraadt 939: tstopflag = 1;
1.1 downsj 940: }
941:
1.34 deraadt 942: /* ARGSUSED */
1.19 pvalchev 943: void
1.51 otto 944: sigwinch(int signo)
1.1 downsj 945: {
1.20 deraadt 946: winchflag = 1;
1.1 downsj 947: }
948:
1.34 deraadt 949: /* ARGSUSED */
1.19 pvalchev 950: void
1.20 deraadt 951: onalrm(int signo)
1.1 downsj 952: {
953: }
954:
1.19 pvalchev 955: void
1.20 deraadt 956: quit(int ret)
1.1 downsj 957: {
1.20 deraadt 958: end_screen();
959: exit(ret);
1.1 downsj 960: }