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1.24 ! deraadt 1: /* $OpenBSD: top.c,v 1.23 2003/06/16 17:24:44 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:
1.20 deraadt 31: const char copyright[] = "Copyright (c) 1984 through 1996, William LeFebvre";
1.1 downsj 32:
1.2 downsj 33: #include <sys/types.h>
1.23 millert 34: #include <sys/time.h>
35: #include <err.h>
36: #include <errno.h>
1.2 downsj 37: #include <stdio.h>
38: #include <ctype.h>
1.1 downsj 39: #include <signal.h>
1.2 downsj 40: #include <string.h>
41: #include <stdlib.h>
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 */
1.20 deraadt 57: char stdoutbuf[BUFFERSIZE];
1.1 downsj 58:
1.20 deraadt 59: extern int overstrike;
1.1 downsj 60:
61: /* signal handling routines */
1.20 deraadt 62: static void leave(int);
63: static void onalrm(int);
64: static void tstop(int);
1.1 downsj 65: #ifdef SIGWINCH
1.20 deraadt 66: static void winch(int);
1.1 downsj 67: #endif
68:
1.13 deraadt 69: volatile sig_atomic_t leaveflag;
70: volatile sig_atomic_t tstopflag;
71: volatile sig_atomic_t winchflag;
1.7 deraadt 72:
1.20 deraadt 73: static void reset_display(void);
74: int rundisplay(void);
1.1 downsj 75:
1.20 deraadt 76: static int max_topn; /* maximum displayable processes */
1.1 downsj 77:
1.20 deraadt 78: extern int (*proc_compares[])(const void *, const void *);
79: int order_index;
1.1 downsj 80:
81: /* pointers to display routines */
1.20 deraadt 82: void (*d_loadave) () = i_loadave;
83: void (*d_procstates) () = i_procstates;
84: void (*d_cpustates) () = i_cpustates;
85: void (*d_memory) () = i_memory;
86: void (*d_message) () = i_message;
87: void (*d_header) () = i_header;
88: void (*d_process) () = i_process;
89:
90: int displays = 0; /* indicates unspecified */
91: char do_unames = Yes;
92: struct process_select ps;
93: char dostates = No;
94: char interactive = Maybe;
95: char warnings = 0;
96: double delay = Default_DELAY;
97: char *order_name = NULL;
98: int topn = Default_TOPN;
1.24 ! deraadt 99: int no_command = Yes;
1.1 downsj 100:
101: #if Default_TOPN == Infinity
1.20 deraadt 102: char topn_specified = No;
1.1 downsj 103: #endif
104:
1.20 deraadt 105: /*
106: * these defines enumerate the "strchr"s of the commands in
107: * command_chars
108: */
1.1 downsj 109: #define CMD_redraw 0
110: #define CMD_update 1
111: #define CMD_quit 2
112: #define CMD_help1 3
113: #define CMD_help2 4
1.20 deraadt 114: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
115: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 116: #define CMD_number1 6
117: #define CMD_number2 7
118: #define CMD_delay 8
119: #define CMD_displays 9
120: #define CMD_kill 10
121: #define CMD_renice 11
122: #define CMD_idletog 12
123: #define CMD_idletog2 13
124: #define CMD_user 14
1.12 fgsch 125: #define CMD_system 15
126: #define CMD_order 16
1.1 downsj 127:
1.20 deraadt 128: void
129: usage(void)
130: {
1.22 deraadt 131: extern char *__progname;
132:
1.20 deraadt 133: fprintf(stderr,
1.22 deraadt 134: "usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
135: __progname);
1.20 deraadt 136: }
137:
138: void
139: parseargs(int ac, char **av)
140: {
141: char *endp;
142: int i;
143:
144: while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != -1) {
145: switch (i) {
146: case 'u': /* toggle uid/username display */
147: do_unames = !do_unames;
148: break;
149:
150: case 'U': /* display only username's processes */
1.21 millert 151: if ((ps.uid = userid(optarg)) == (uid_t)-1) {
1.20 deraadt 152: fprintf(stderr, "%s: unknown user\n", optarg);
153: exit(1);
154: }
155: break;
1.1 downsj 156:
1.20 deraadt 157: case 'S': /* show system processes */
158: ps.system = !ps.system;
159: break;
160:
161: case 'I': /* show idle processes */
162: ps.idle = !ps.idle;
163: break;
164:
165: case 'i': /* go interactive regardless */
166: interactive = Yes;
167: break;
168:
169: case 'n': /* batch, or non-interactive */
170: case 'b':
171: interactive = No;
172: break;
173:
174: case 'd': /* number of displays to show */
175: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
176: displays = i;
177: break;
178: }
1.22 deraadt 179: warnx("warning: display count should be positive "
180: "-- option ignored");
1.20 deraadt 181: warnings++;
182: break;
183:
184: case 's':
185: delay = strtod(optarg, &endp);
186:
187: if (delay > 0 && delay <= 1000000 && *endp == '\0')
188: break;
189:
1.22 deraadt 190: warnx("warning: delay should be a non-negative number"
191: " -- using default");
1.20 deraadt 192: delay = Default_DELAY;
193: warnings++;
194: break;
195:
196: case 'q': /* be quick about it */
197: /* only allow this if user is really root */
198: if (getuid() == 0) {
199: /* be very un-nice! */
200: (void) nice(-20);
201: break;
202: }
1.22 deraadt 203: warnx("warning: `-q' option can only be used by root");
1.20 deraadt 204: warnings++;
205: break;
206:
207: case 'o': /* select sort order */
208: order_name = optarg;
209: break;
210:
211: default:
212: usage();
213: exit(1);
1.1 downsj 214: }
1.20 deraadt 215: }
1.1 downsj 216:
1.20 deraadt 217: /* get count of top processes to display (if any) */
218: if (optind < ac) {
219: if ((topn = atoiwi(av[optind])) == Invalid) {
1.22 deraadt 220: warnx("warning: process display count should "
221: "be non-negative -- using default");
1.20 deraadt 222: warnings++;
1.1 downsj 223: }
1.20 deraadt 224: #if Default_TOPN == Infinity
1.1 downsj 225: else
1.20 deraadt 226: topn_specified = Yes;
227: #endif
228: }
229: }
1.1 downsj 230:
1.20 deraadt 231: struct system_info system_info;
232: struct statics statics;
1.1 downsj 233:
1.20 deraadt 234: int
235: main(int argc, char *argv[])
236: {
237: char *uname_field = "USERNAME", *header_text, *env_top;
238: char *(*get_userid)() = username, **preset_argv, **av;
239: int preset_argc = 0, ac, active_procs, i;
240: sigset_t mask, oldmask;
241: time_t curr_time;
242: caddr_t processes;
1.1 downsj 243:
1.20 deraadt 244: /* set the buffer for stdout */
245: #ifdef DEBUG
246: setbuffer(stdout, NULL, 0);
1.1 downsj 247: #else
1.20 deraadt 248: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 249: #endif
250:
1.20 deraadt 251: /* initialize some selection options */
252: ps.idle = Yes;
253: ps.system = No;
1.21 millert 254: ps.uid = (uid_t)-1;
1.20 deraadt 255: ps.command = NULL;
256:
257: /* get preset options from the environment */
258: if ((env_top = getenv("TOP")) != NULL) {
259: av = preset_argv = argparse(env_top, &preset_argc);
260: ac = preset_argc;
261:
262: /*
263: * set the dummy argument to an explanatory message, in case
264: * getopt encounters a bad argument
265: */
266: preset_argv[0] = "while processing environment";
267: }
268: /* process options */
269: do {
270: /*
271: * if we're done doing the presets, then process the real
272: * arguments
273: */
274: if (preset_argc == 0) {
275: ac = argc;
276: av = argv;
277: optind = 1;
278: }
279: parseargs(ac, av);
280: i = preset_argc;
281: preset_argc = 0;
282: } while (i != 0);
283:
284: /* set constants for username/uid display correctly */
285: if (!do_unames) {
286: uname_field = " UID ";
287: get_userid = itoa7;
288: }
289: /* initialize the kernel memory interface */
290: if (machine_init(&statics) == -1)
1.1 downsj 291: exit(1);
1.20 deraadt 292:
293: /* determine sorting order index, if necessary */
294: if (order_name != NULL) {
295: if ((order_index = string_index(order_name,
296: statics.order_names)) == -1) {
297: char **pp;
298:
1.22 deraadt 299: warnx("'%s' is not a recognized sorting order",
300: order_name);
1.20 deraadt 301: fprintf(stderr, "\tTry one of these:");
302: pp = statics.order_names;
303: while (*pp != NULL)
304: fprintf(stderr, " %s", *pp++);
305: fputc('\n', stderr);
306: exit(1);
307: }
1.1 downsj 308: }
309:
1.20 deraadt 310: /* initialize termcap */
311: init_termcap(interactive);
312:
313: /* get the string to use for the process area header */
314: header_text = format_header(uname_field);
315:
316: /* initialize display interface */
317: if ((max_topn = display_init(&statics)) == -1) {
1.22 deraadt 318: warnx("can't allocate sufficient memory");
1.20 deraadt 319: exit(4);
320: }
321: /* print warning if user requested more processes than we can display */
322: if (topn > max_topn) {
1.22 deraadt 323: warnx("warning: this terminal can only display %d processes",
324: max_topn);
1.1 downsj 325: warnings++;
1.20 deraadt 326: }
327: /* adjust for topn == Infinity */
328: if (topn == Infinity) {
329: /*
330: * For smart terminals, infinity really means everything that can
331: * be displayed, or Largest.
332: * On dumb terminals, infinity means every process in the system!
333: * We only really want to do that if it was explicitly specified.
334: * This is always the case when "Default_TOPN != Infinity". But if
335: * topn wasn't explicitly specified and we are on a dumb terminal
336: * and the default is Infinity, then (and only then) we use
337: * "Nominal_TOPN" instead.
338: */
1.1 downsj 339: #if Default_TOPN == Infinity
1.20 deraadt 340: topn = smart_terminal ? Largest :
341: (topn_specified ? Largest : Nominal_TOPN);
342: #else
343: topn = Largest;
1.1 downsj 344: #endif
345: }
1.20 deraadt 346: /* set header display accordingly */
347: display_header(topn > 0);
1.1 downsj 348:
1.20 deraadt 349: /* determine interactive state */
350: if (interactive == Maybe)
351: interactive = smart_terminal;
1.1 downsj 352:
1.20 deraadt 353: /* if # of displays not specified, fill it in */
354: if (displays == 0)
355: displays = smart_terminal ? Infinity : 1;
1.1 downsj 356:
357: /*
1.20 deraadt 358: * block interrupt signals while setting up the screen and the
359: * handlers
1.1 downsj 360: */
1.20 deraadt 361: sigemptyset(&mask);
362: sigaddset(&mask, SIGINT);
363: sigaddset(&mask, SIGQUIT);
364: sigaddset(&mask, SIGTSTP);
365: sigprocmask(SIG_BLOCK, &mask, &oldmask);
366: init_screen();
367: (void) signal(SIGINT, leave);
368: (void) signal(SIGQUIT, leave);
369: (void) signal(SIGTSTP, tstop);
1.1 downsj 370: #ifdef SIGWINCH
1.20 deraadt 371: (void) signal(SIGWINCH, winch);
1.1 downsj 372: #endif
1.20 deraadt 373: sigprocmask(SIG_SETMASK, &oldmask, NULL);
374: if (warnings) {
375: fputs("....", stderr);
376: fflush(stderr); /* why must I do this? */
377: sleep((unsigned) (3 * warnings));
378: fputc('\n', stderr);
379: }
1.7 deraadt 380: restart:
1.1 downsj 381:
1.20 deraadt 382: /*
383: * main loop -- repeat while display count is positive or while it
384: * indicates infinity (by being -1)
385: */
386: while ((displays == -1) || (displays-- > 0)) {
387: /* get the current stats */
388: get_system_info(&system_info);
389:
390: /* get the current set of processes */
391: processes = get_process_info(&system_info, &ps,
392: proc_compares[order_index]);
393:
394: /* display the load averages */
395: (*d_loadave)(system_info.last_pid, system_info.load_avg);
396:
397: /* display the current time */
398: /* this method of getting the time SHOULD be fairly portable */
399: time(&curr_time);
400: i_timeofday(&curr_time);
401:
402: /* display process state breakdown */
403: (*d_procstates)(system_info.p_total, system_info.procstates);
404:
405: /* display the cpu state percentage breakdown */
406: if (dostates) { /* but not the first time */
407: (*d_cpustates) (system_info.cpustates);
408: } else {
409: /* we'll do it next time */
410: if (smart_terminal)
411: z_cpustates();
412: else {
413: if (putchar('\n') == EOF)
414: exit(1);
415: }
416: dostates = Yes;
417: }
1.1 downsj 418:
1.20 deraadt 419: /* display memory stats */
420: (*d_memory) (system_info.memory);
1.1 downsj 421:
1.20 deraadt 422: /* handle message area */
423: (*d_message) ();
1.1 downsj 424:
1.20 deraadt 425: /* update the header area */
426: (*d_header) (header_text);
427:
428: if (topn > 0) {
429: /* determine number of processes to actually display */
430: /*
431: * this number will be the smallest of: active
432: * processes, number user requested, number current
433: * screen accommodates
434: */
435: active_procs = system_info.p_active;
436: if (active_procs > topn)
437: active_procs = topn;
438: if (active_procs > max_topn)
439: active_procs = max_topn;
440: /* now show the top "n" processes. */
441: for (i = 0; i < active_procs; i++)
442: (*d_process)(i, format_next_process(processes,
443: get_userid));
444: } else
445: i = 0;
446:
447: /* do end-screen processing */
448: u_endscreen(i);
449:
450: /* now, flush the output buffer */
451: fflush(stdout);
452:
453: /* only do the rest if we have more displays to show */
454: if (displays) {
455: /* switch out for new display on smart terminals */
456: if (smart_terminal) {
457: if (overstrike) {
458: reset_display();
459: } else {
460: d_loadave = u_loadave;
461: d_procstates = u_procstates;
462: d_cpustates = u_cpustates;
463: d_memory = u_memory;
464: d_message = u_message;
465: d_header = u_header;
466: d_process = u_process;
467: }
468: }
469: no_command = Yes;
470: if (!interactive) {
471: /* set up alarm */
472: (void) signal(SIGALRM, onalrm);
473: (void) alarm((unsigned) delay);
474:
475: /* wait for the rest of it .... */
476: pause();
477: } else {
478: while (no_command)
479: if (rundisplay())
480: goto restart;
481: }
482: }
483: }
1.1 downsj 484:
1.20 deraadt 485: quit(0);
486: /* NOTREACHED */
487: return (0);
488: }
1.7 deraadt 489:
1.20 deraadt 490: int
491: rundisplay(void)
492: {
493: static char tempbuf1[50], tempbuf2[50];
494: struct timeval timeout;
495: fd_set readfds;
496: sigset_t mask;
497: char ch, *iptr;
498: int change, i;
1.21 millert 499: uid_t uid;
1.20 deraadt 500: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.7 deraadt 501:
1.20 deraadt 502: /*
503: * assume valid command unless told
504: * otherwise
505: */
506: no_command = No;
1.7 deraadt 507:
1.20 deraadt 508: /*
509: * set up arguments for select with
510: * timeout
511: */
512: FD_ZERO(&readfds);
513: FD_SET(STDIN_FILENO, &readfds);
514: timeout.tv_sec = (long) delay;
515: timeout.tv_usec = (long) ((delay - timeout.tv_sec) * 1000000);
516:
517: if (leaveflag) {
518: end_screen();
519: exit(0);
520: }
521: if (tstopflag) {
522: /* move to the lower left */
523: end_screen();
524: fflush(stdout);
525:
526: /*
527: * default the signal handler
528: * action
529: */
530: (void) signal(SIGTSTP, SIG_DFL);
531:
532: /*
533: * unblock the signal and
534: * send ourselves one
535: */
536: sigemptyset(&mask);
537: sigaddset(&mask, SIGTSTP);
538: sigprocmask(SIG_UNBLOCK, &mask, NULL);
539: (void) kill(0, SIGTSTP);
540:
541: /* reset the signal handler */
542: (void) signal(SIGTSTP, tstop);
543:
544: /* reinit screen */
545: reinit_screen();
546: reset_display();
547: tstopflag = 0;
548: return 1;
549: }
550: if (winchflag) {
551: /*
552: * reascertain the screen
553: * dimensions
554: */
555: get_screensize();
556:
557: /* tell display to resize */
558: max_topn = display_resize();
559:
560: /* reset the signal handler */
561: (void) signal(SIGWINCH, winch);
562:
563: reset_display();
564: winchflag = 0;
565: return 1;
566: }
567: /*
568: * wait for either input or the end
569: * of the delay period
570: */
571: if (select(STDIN_FILENO + 1, &readfds, (fd_set *) NULL,
572: (fd_set *) NULL, &timeout) > 0) {
573: char *errmsg;
574: int newval;
575:
576: clear_message();
577:
578: /*
579: * now read it and convert to
580: * command strchr
581: */
582: (void) read(0, &ch, 1);
583: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 584: /* illegal command */
585: new_message(MT_standout, " Command not understood");
1.9 deraadt 586: if (putchar('\r') == EOF)
1.20 deraadt 587: exit(1);
1.1 downsj 588: no_command = Yes;
1.20 deraadt 589: fflush(stdout);
590: return (0);
591: }
592:
593: change = iptr - command_chars;
594: if (overstrike && change > CMD_OSLIMIT) {
595: /* error */
596: new_message(MT_standout,
1.1 downsj 597: " Command cannot be handled by this terminal");
1.20 deraadt 598: if (putchar('\r') == EOF)
599: exit(1);
600: no_command = Yes;
601: fflush(stdout);
602: return (0);
603: }
604:
605: switch (change) {
606: case CMD_redraw: /* redraw screen */
607: reset_display();
608: break;
609:
610: case CMD_update: /* merely update display */
611: /*
612: * is the load average high?
613: */
614: if (system_info.load_avg[0] > LoadMax) {
615: /* yes, go home for visual feedback */
616: go_home();
617: fflush(stdout);
1.1 downsj 618: }
1.20 deraadt 619: break;
620:
621: case CMD_quit: /* quit */
622: quit(0);
623: break;
624:
625: case CMD_help1: /* help */
626: case CMD_help2:
627: reset_display();
628: clear();
629: show_help();
630: standout("Hit any key to continue: ");
631: fflush(stdout);
632: (void) read(0, &ch, 1);
633: break;
634:
635: case CMD_errors: /* show errors */
636: if (error_count() == 0) {
637: new_message(MT_standout,
638: " Currently no errors to report.");
639: if (putchar('\r') == EOF)
640: exit(1);
641: no_command = Yes;
642: } else {
1.1 downsj 643: reset_display();
644: clear();
1.20 deraadt 645: show_errors();
1.1 downsj 646: standout("Hit any key to continue: ");
647: fflush(stdout);
648: (void) read(0, &ch, 1);
1.20 deraadt 649: }
650: break;
651:
652: case CMD_number1: /* new number */
653: case CMD_number2:
654: new_message(MT_standout,
655: "Number of processes to show: ");
656: newval = readline(tempbuf1, 8, Yes);
657: if (newval > -1) {
658: if (newval > max_topn) {
1.1 downsj 659: new_message(MT_standout | MT_delayed,
1.20 deraadt 660: " This terminal can only "
661: "display %d processes.",
662: max_topn);
1.9 deraadt 663: if (putchar('\r') == EOF)
1.20 deraadt 664: exit(1);
665: }
666: if (newval == 0)
1.1 downsj 667: display_header(No);
1.20 deraadt 668: else if (newval > topn && topn == 0) {
1.1 downsj 669: /* redraw the header */
670: display_header(Yes);
671: d_header = i_header;
672: }
1.20 deraadt 673: topn = newval;
674: }
675: break;
676:
677: case CMD_delay: /* new seconds delay */
678: new_message(MT_standout, "Seconds to delay: ");
679: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
680: char *endp;
681: double newdelay = strtod(tempbuf2, &endp);
682:
683: if (newdelay >= 0 && newdelay < 1000000 &&
684: *endp == '\0')
1.16 hugh 685: delay = newdelay;
1.20 deraadt 686: }
687: clear_message();
688: break;
689:
690: case CMD_displays: /* change display count */
691: new_message(MT_standout,
692: "Displays to show (currently %s): ",
693: displays == -1 ? "infinite" :
694: itoa(displays));
695: if ((i = readline(tempbuf1, 10, Yes)) > 0)
696: displays = i;
697: else if (i == 0)
698: quit(0);
699:
700: clear_message();
701: break;
702:
703: case CMD_kill: /* kill program */
704: new_message(0, "kill ");
705: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
706: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 707: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 708: if (putchar('\r') == EOF)
1.20 deraadt 709: exit(1);
1.1 downsj 710: no_command = Yes;
711: }
1.20 deraadt 712: } else
713: clear_message();
714: break;
715:
716: case CMD_renice: /* renice program */
717: new_message(0, "renice ");
718: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
719: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 720: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 721: if (putchar('\r') == EOF)
1.20 deraadt 722: exit(1);
1.1 downsj 723: no_command = Yes;
724: }
1.20 deraadt 725: } else
726: clear_message();
727: break;
1.1 downsj 728:
1.20 deraadt 729: case CMD_idletog:
730: case CMD_idletog2:
731: ps.idle = !ps.idle;
732: new_message(MT_standout | MT_delayed,
733: " %sisplaying idle processes.",
734: ps.idle ? "D" : "Not d");
735: if (putchar('\r') == EOF)
736: exit(1);
737: break;
1.1 downsj 738:
1.20 deraadt 739: case CMD_user:
740: new_message(MT_standout,
741: "Username to show: ");
742: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
743: if (tempbuf2[0] == '+' &&
744: tempbuf2[1] == '\0') {
1.21 millert 745: ps.uid = (uid_t)-1;
746: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 747: new_message(MT_standout,
748: " %s: unknown user", tempbuf2);
749: no_command = Yes;
1.20 deraadt 750: } else
1.21 millert 751: ps.uid = uid;
1.20 deraadt 752: if (putchar('\r') == EOF)
753: exit(1);
754: } else
755: clear_message();
756: break;
1.12 fgsch 757:
1.20 deraadt 758: case CMD_system:
759: ps.system = !ps.system;
760: new_message(MT_standout | MT_delayed,
761: " %sisplaying system processes.",
762: ps.system ? "D" : "Not d");
763: break;
764:
765: case CMD_order:
766: new_message(MT_standout,
767: "Order to sort: ");
768: if (readline(tempbuf2,
769: sizeof(tempbuf2), No) > 0) {
770: if ((i = string_index(tempbuf2,
771: statics.order_names)) == -1) {
772: new_message(MT_standout,
773: " %s: unrecognized sorting order",
774: tempbuf2);
775: no_command = Yes;
776: } else
1.1 downsj 777: order_index = i;
1.9 deraadt 778: if (putchar('\r') == EOF)
1.20 deraadt 779: exit(1);
780: } else
781: clear_message();
782: break;
1.1 downsj 783:
1.20 deraadt 784: default:
785: new_message(MT_standout, " BAD CASE IN SWITCH!");
786: if (putchar('\r') == EOF)
787: exit(1);
1.1 downsj 788: }
789: }
790:
1.20 deraadt 791: /* flush out stuff that may have been written */
792: fflush(stdout);
793: return 0;
1.1 downsj 794: }
795:
1.20 deraadt 796:
1.1 downsj 797: /*
798: * reset_display() - reset all the display routine pointers so that entire
799: * screen will get redrawn.
800: */
1.19 pvalchev 801: static void
802: reset_display(void)
1.1 downsj 803: {
1.20 deraadt 804: d_loadave = i_loadave;
805: d_procstates = i_procstates;
806: d_cpustates = i_cpustates;
807: d_memory = i_memory;
808: d_message = i_message;
809: d_header = i_header;
810: d_process = i_process;
1.1 downsj 811: }
812:
1.19 pvalchev 813: void
1.20 deraadt 814: leave(int signo)
1.1 downsj 815: {
1.20 deraadt 816: leaveflag = 1;
1.1 downsj 817: }
818:
1.19 pvalchev 819: void
1.20 deraadt 820: tstop(int signo)
1.1 downsj 821: {
1.20 deraadt 822: tstopflag = 1;
1.1 downsj 823: }
824:
825: #ifdef SIGWINCH
1.19 pvalchev 826: void
1.20 deraadt 827: winch(int signo)
1.1 downsj 828: {
1.20 deraadt 829: winchflag = 1;
1.1 downsj 830: }
831: #endif
832:
1.19 pvalchev 833: void
1.20 deraadt 834: onalrm(int signo)
1.1 downsj 835: {
836: }
837:
1.19 pvalchev 838: void
1.20 deraadt 839: quit(int ret)
1.1 downsj 840: {
1.20 deraadt 841: end_screen();
842: exit(ret);
1.1 downsj 843: }