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1.23 ! millert 1: /* $OpenBSD: top.c,v 1.22 2003/06/16 01:09:02 deraadt 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>
40: #include <setjmp.h>
1.2 downsj 41: #include <string.h>
42: #include <stdlib.h>
43: #include <unistd.h>
1.1 downsj 44:
45: /* includes specific to top */
46: #include "display.h" /* interface to display package */
47: #include "screen.h" /* interface to screen package */
48: #include "top.h"
49: #include "top.local.h"
50: #include "boolean.h"
51: #include "machine.h"
52: #include "utils.h"
53:
54: /* Size of the stdio buffer given to stdout */
1.20 deraadt 55: #define BUFFERSIZE 2048
1.1 downsj 56:
57: /* The buffer that stdio will use */
1.20 deraadt 58: char stdoutbuf[BUFFERSIZE];
1.1 downsj 59:
1.20 deraadt 60: extern int overstrike;
1.1 downsj 61:
62: /* signal handling routines */
1.20 deraadt 63: static void leave(int);
64: static void onalrm(int);
65: static void tstop(int);
1.1 downsj 66: #ifdef SIGWINCH
1.20 deraadt 67: static void winch(int);
1.1 downsj 68: #endif
69:
1.13 deraadt 70: volatile sig_atomic_t leaveflag;
71: volatile sig_atomic_t tstopflag;
72: volatile sig_atomic_t winchflag;
1.7 deraadt 73:
1.20 deraadt 74: static void reset_display(void);
75: int rundisplay(void);
1.1 downsj 76:
77: /* values which need to be accessed by signal handlers */
1.20 deraadt 78: static int max_topn; /* maximum displayable processes */
1.1 downsj 79:
80: /* miscellaneous things */
1.20 deraadt 81: jmp_buf jmp_int;
1.1 downsj 82:
1.20 deraadt 83: extern int (*proc_compares[])(const void *, const void *);
84: int order_index;
1.1 downsj 85:
86: /* pointers to display routines */
1.20 deraadt 87: void (*d_loadave) () = i_loadave;
88: void (*d_procstates) () = i_procstates;
89: void (*d_cpustates) () = i_cpustates;
90: void (*d_memory) () = i_memory;
91: void (*d_message) () = i_message;
92: void (*d_header) () = i_header;
93: void (*d_process) () = i_process;
94:
95: int displays = 0; /* indicates unspecified */
96: char do_unames = Yes;
97: struct process_select ps;
98: char dostates = No;
99: char interactive = Maybe;
100: char warnings = 0;
101: double delay = Default_DELAY;
102: char *order_name = NULL;
103: int topn = Default_TOPN;
104: int no_command = 1;
1.1 downsj 105:
106: #if Default_TOPN == Infinity
1.20 deraadt 107: char topn_specified = No;
1.1 downsj 108: #endif
109:
1.20 deraadt 110: /*
111: * these defines enumerate the "strchr"s of the commands in
112: * command_chars
113: */
1.1 downsj 114: #define CMD_redraw 0
115: #define CMD_update 1
116: #define CMD_quit 2
117: #define CMD_help1 3
118: #define CMD_help2 4
1.20 deraadt 119: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
120: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 121: #define CMD_number1 6
122: #define CMD_number2 7
123: #define CMD_delay 8
124: #define CMD_displays 9
125: #define CMD_kill 10
126: #define CMD_renice 11
127: #define CMD_idletog 12
128: #define CMD_idletog2 13
129: #define CMD_user 14
1.12 fgsch 130: #define CMD_system 15
131: #define CMD_order 16
1.1 downsj 132:
1.20 deraadt 133: void
134: usage(void)
135: {
1.22 deraadt 136: extern char *__progname;
137:
1.20 deraadt 138: fprintf(stderr,
1.22 deraadt 139: "usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
140: __progname);
1.20 deraadt 141: }
142:
143: void
144: parseargs(int ac, char **av)
145: {
146: char *endp;
147: int i;
148:
149: while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != -1) {
150: switch (i) {
151: case 'u': /* toggle uid/username display */
152: do_unames = !do_unames;
153: break;
154:
155: case 'U': /* display only username's processes */
1.21 millert 156: if ((ps.uid = userid(optarg)) == (uid_t)-1) {
1.20 deraadt 157: fprintf(stderr, "%s: unknown user\n", optarg);
158: exit(1);
159: }
160: break;
1.1 downsj 161:
1.20 deraadt 162: case 'S': /* show system processes */
163: ps.system = !ps.system;
164: break;
165:
166: case 'I': /* show idle processes */
167: ps.idle = !ps.idle;
168: break;
169:
170: case 'i': /* go interactive regardless */
171: interactive = Yes;
172: break;
173:
174: case 'n': /* batch, or non-interactive */
175: case 'b':
176: interactive = No;
177: break;
178:
179: case 'd': /* number of displays to show */
180: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
181: displays = i;
182: break;
183: }
1.22 deraadt 184: warnx("warning: display count should be positive "
185: "-- option ignored");
1.20 deraadt 186: warnings++;
187: break;
188:
189: case 's':
190: delay = strtod(optarg, &endp);
191:
192: if (delay > 0 && delay <= 1000000 && *endp == '\0')
193: break;
194:
1.22 deraadt 195: warnx("warning: delay should be a non-negative number"
196: " -- using default");
1.20 deraadt 197: delay = Default_DELAY;
198: warnings++;
199: break;
200:
201: case 'q': /* be quick about it */
202: /* only allow this if user is really root */
203: if (getuid() == 0) {
204: /* be very un-nice! */
205: (void) nice(-20);
206: break;
207: }
1.22 deraadt 208: warnx("warning: `-q' option can only be used by root");
1.20 deraadt 209: warnings++;
210: break;
211:
212: case 'o': /* select sort order */
213: order_name = optarg;
214: break;
215:
216: default:
217: usage();
218: exit(1);
1.1 downsj 219: }
1.20 deraadt 220: }
1.1 downsj 221:
1.20 deraadt 222: /* get count of top processes to display (if any) */
223: if (optind < ac) {
224: if ((topn = atoiwi(av[optind])) == Invalid) {
1.22 deraadt 225: warnx("warning: process display count should "
226: "be non-negative -- using default");
1.20 deraadt 227: warnings++;
1.1 downsj 228: }
1.20 deraadt 229: #if Default_TOPN == Infinity
1.1 downsj 230: else
1.20 deraadt 231: topn_specified = Yes;
232: #endif
233: }
234: }
1.1 downsj 235:
1.20 deraadt 236: struct system_info system_info;
237: struct statics statics;
1.1 downsj 238:
1.20 deraadt 239: int
240: main(int argc, char *argv[])
241: {
242: char *uname_field = "USERNAME", *header_text, *env_top;
243: char *(*get_userid)() = username, **preset_argv, **av;
244: int preset_argc = 0, ac, active_procs, i;
245: sigset_t mask, oldmask;
246: time_t curr_time;
247: caddr_t processes;
1.1 downsj 248:
1.20 deraadt 249: /* set the buffer for stdout */
250: #ifdef DEBUG
251: setbuffer(stdout, NULL, 0);
1.1 downsj 252: #else
1.20 deraadt 253: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 254: #endif
255:
1.20 deraadt 256: /* initialize some selection options */
257: ps.idle = Yes;
258: ps.system = No;
1.21 millert 259: ps.uid = (uid_t)-1;
1.20 deraadt 260: ps.command = NULL;
261:
262: /* get preset options from the environment */
263: if ((env_top = getenv("TOP")) != NULL) {
264: av = preset_argv = argparse(env_top, &preset_argc);
265: ac = preset_argc;
266:
267: /*
268: * set the dummy argument to an explanatory message, in case
269: * getopt encounters a bad argument
270: */
271: preset_argv[0] = "while processing environment";
272: }
273: /* process options */
274: do {
275: /*
276: * if we're done doing the presets, then process the real
277: * arguments
278: */
279: if (preset_argc == 0) {
280: ac = argc;
281: av = argv;
282: optind = 1;
283: }
284: parseargs(ac, av);
285: i = preset_argc;
286: preset_argc = 0;
287: } while (i != 0);
288:
289: /* set constants for username/uid display correctly */
290: if (!do_unames) {
291: uname_field = " UID ";
292: get_userid = itoa7;
293: }
294: /* initialize the kernel memory interface */
295: if (machine_init(&statics) == -1)
1.1 downsj 296: exit(1);
1.20 deraadt 297:
298: /* determine sorting order index, if necessary */
299: if (order_name != NULL) {
300: if ((order_index = string_index(order_name,
301: statics.order_names)) == -1) {
302: char **pp;
303:
1.22 deraadt 304: warnx("'%s' is not a recognized sorting order",
305: order_name);
1.20 deraadt 306: fprintf(stderr, "\tTry one of these:");
307: pp = statics.order_names;
308: while (*pp != NULL)
309: fprintf(stderr, " %s", *pp++);
310: fputc('\n', stderr);
311: exit(1);
312: }
1.1 downsj 313: }
314:
1.20 deraadt 315: /* initialize termcap */
316: init_termcap(interactive);
317:
318: /* get the string to use for the process area header */
319: header_text = format_header(uname_field);
320:
321: /* initialize display interface */
322: if ((max_topn = display_init(&statics)) == -1) {
1.22 deraadt 323: warnx("can't allocate sufficient memory");
1.20 deraadt 324: exit(4);
325: }
326: /* print warning if user requested more processes than we can display */
327: if (topn > max_topn) {
1.22 deraadt 328: warnx("warning: this terminal can only display %d processes",
329: max_topn);
1.1 downsj 330: warnings++;
1.20 deraadt 331: }
332: /* adjust for topn == Infinity */
333: if (topn == Infinity) {
334: /*
335: * For smart terminals, infinity really means everything that can
336: * be displayed, or Largest.
337: * On dumb terminals, infinity means every process in the system!
338: * We only really want to do that if it was explicitly specified.
339: * This is always the case when "Default_TOPN != Infinity". But if
340: * topn wasn't explicitly specified and we are on a dumb terminal
341: * and the default is Infinity, then (and only then) we use
342: * "Nominal_TOPN" instead.
343: */
1.1 downsj 344: #if Default_TOPN == Infinity
1.20 deraadt 345: topn = smart_terminal ? Largest :
346: (topn_specified ? Largest : Nominal_TOPN);
347: #else
348: topn = Largest;
1.1 downsj 349: #endif
350: }
1.20 deraadt 351: /* set header display accordingly */
352: display_header(topn > 0);
1.1 downsj 353:
1.20 deraadt 354: /* determine interactive state */
355: if (interactive == Maybe)
356: interactive = smart_terminal;
1.1 downsj 357:
1.20 deraadt 358: /* if # of displays not specified, fill it in */
359: if (displays == 0)
360: displays = smart_terminal ? Infinity : 1;
1.1 downsj 361:
362: /*
1.20 deraadt 363: * block interrupt signals while setting up the screen and the
364: * handlers
1.1 downsj 365: */
1.20 deraadt 366: sigemptyset(&mask);
367: sigaddset(&mask, SIGINT);
368: sigaddset(&mask, SIGQUIT);
369: sigaddset(&mask, SIGTSTP);
370: sigprocmask(SIG_BLOCK, &mask, &oldmask);
371: init_screen();
372: (void) signal(SIGINT, leave);
373: (void) signal(SIGQUIT, leave);
374: (void) signal(SIGTSTP, tstop);
1.1 downsj 375: #ifdef SIGWINCH
1.20 deraadt 376: (void) signal(SIGWINCH, winch);
1.1 downsj 377: #endif
1.20 deraadt 378: sigprocmask(SIG_SETMASK, &oldmask, NULL);
379: if (warnings) {
380: fputs("....", stderr);
381: fflush(stderr); /* why must I do this? */
382: sleep((unsigned) (3 * warnings));
383: fputc('\n', stderr);
384: }
1.7 deraadt 385: restart:
1.1 downsj 386:
1.20 deraadt 387: /*
388: * main loop -- repeat while display count is positive or while it
389: * indicates infinity (by being -1)
390: */
391: while ((displays == -1) || (displays-- > 0)) {
392: /* get the current stats */
393: get_system_info(&system_info);
394:
395: /* get the current set of processes */
396: processes = get_process_info(&system_info, &ps,
397: proc_compares[order_index]);
398:
399: /* display the load averages */
400: (*d_loadave)(system_info.last_pid, system_info.load_avg);
401:
402: /* display the current time */
403: /* this method of getting the time SHOULD be fairly portable */
404: time(&curr_time);
405: i_timeofday(&curr_time);
406:
407: /* display process state breakdown */
408: (*d_procstates)(system_info.p_total, system_info.procstates);
409:
410: /* display the cpu state percentage breakdown */
411: if (dostates) { /* but not the first time */
412: (*d_cpustates) (system_info.cpustates);
413: } else {
414: /* we'll do it next time */
415: if (smart_terminal)
416: z_cpustates();
417: else {
418: if (putchar('\n') == EOF)
419: exit(1);
420: }
421: dostates = Yes;
422: }
1.1 downsj 423:
1.20 deraadt 424: /* display memory stats */
425: (*d_memory) (system_info.memory);
1.1 downsj 426:
1.20 deraadt 427: /* handle message area */
428: (*d_message) ();
1.1 downsj 429:
1.20 deraadt 430: /* update the header area */
431: (*d_header) (header_text);
432:
433: if (topn > 0) {
434: /* determine number of processes to actually display */
435: /*
436: * this number will be the smallest of: active
437: * processes, number user requested, number current
438: * screen accommodates
439: */
440: active_procs = system_info.p_active;
441: if (active_procs > topn)
442: active_procs = topn;
443: if (active_procs > max_topn)
444: active_procs = max_topn;
445: /* now show the top "n" processes. */
446: for (i = 0; i < active_procs; i++)
447: (*d_process)(i, format_next_process(processes,
448: get_userid));
449: } else
450: i = 0;
451:
452: /* do end-screen processing */
453: u_endscreen(i);
454:
455: /* now, flush the output buffer */
456: fflush(stdout);
457:
458: /* only do the rest if we have more displays to show */
459: if (displays) {
460: /* switch out for new display on smart terminals */
461: if (smart_terminal) {
462: if (overstrike) {
463: reset_display();
464: } else {
465: d_loadave = u_loadave;
466: d_procstates = u_procstates;
467: d_cpustates = u_cpustates;
468: d_memory = u_memory;
469: d_message = u_message;
470: d_header = u_header;
471: d_process = u_process;
472: }
473: }
474: no_command = Yes;
475: if (!interactive) {
476: /* set up alarm */
477: (void) signal(SIGALRM, onalrm);
478: (void) alarm((unsigned) delay);
479:
480: /* wait for the rest of it .... */
481: pause();
482: } else {
483: while (no_command)
484: if (rundisplay())
485: goto restart;
486: }
487: }
488: }
1.1 downsj 489:
1.20 deraadt 490: quit(0);
491: /* NOTREACHED */
492: return (0);
493: }
1.7 deraadt 494:
1.20 deraadt 495: int
496: rundisplay(void)
497: {
498: static char tempbuf1[50], tempbuf2[50];
499: struct timeval timeout;
500: fd_set readfds;
501: sigset_t mask;
502: char ch, *iptr;
503: int change, i;
1.21 millert 504: uid_t uid;
1.20 deraadt 505: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.7 deraadt 506:
1.20 deraadt 507: /*
508: * assume valid command unless told
509: * otherwise
510: */
511: no_command = No;
1.7 deraadt 512:
1.20 deraadt 513: /*
514: * set up arguments for select with
515: * timeout
516: */
517: FD_ZERO(&readfds);
518: FD_SET(STDIN_FILENO, &readfds);
519: timeout.tv_sec = (long) delay;
520: timeout.tv_usec = (long) ((delay - timeout.tv_sec) * 1000000);
521:
522: if (leaveflag) {
523: end_screen();
524: exit(0);
525: }
526: if (tstopflag) {
527: /* move to the lower left */
528: end_screen();
529: fflush(stdout);
530:
531: /*
532: * default the signal handler
533: * action
534: */
535: (void) signal(SIGTSTP, SIG_DFL);
536:
537: /*
538: * unblock the signal and
539: * send ourselves one
540: */
541: sigemptyset(&mask);
542: sigaddset(&mask, SIGTSTP);
543: sigprocmask(SIG_UNBLOCK, &mask, NULL);
544: (void) kill(0, SIGTSTP);
545:
546: /* reset the signal handler */
547: (void) signal(SIGTSTP, tstop);
548:
549: /* reinit screen */
550: reinit_screen();
551: reset_display();
552: tstopflag = 0;
553: return 1;
554: }
555: if (winchflag) {
556: /*
557: * reascertain the screen
558: * dimensions
559: */
560: get_screensize();
561:
562: /* tell display to resize */
563: max_topn = display_resize();
564:
565: /* reset the signal handler */
566: (void) signal(SIGWINCH, winch);
567:
568: reset_display();
569: winchflag = 0;
570: return 1;
571: }
572: /*
573: * wait for either input or the end
574: * of the delay period
575: */
576: if (select(STDIN_FILENO + 1, &readfds, (fd_set *) NULL,
577: (fd_set *) NULL, &timeout) > 0) {
578: char *errmsg;
579: int newval;
580:
581: clear_message();
582:
583: /*
584: * now read it and convert to
585: * command strchr
586: */
587: (void) read(0, &ch, 1);
588: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 589: /* illegal command */
590: new_message(MT_standout, " Command not understood");
1.9 deraadt 591: if (putchar('\r') == EOF)
1.20 deraadt 592: exit(1);
1.1 downsj 593: no_command = Yes;
1.20 deraadt 594: fflush(stdout);
595: return (0);
596: }
597:
598: change = iptr - command_chars;
599: if (overstrike && change > CMD_OSLIMIT) {
600: /* error */
601: new_message(MT_standout,
1.1 downsj 602: " Command cannot be handled by this terminal");
1.20 deraadt 603: if (putchar('\r') == EOF)
604: exit(1);
605: no_command = Yes;
606: fflush(stdout);
607: return (0);
608: }
609:
610: switch (change) {
611: case CMD_redraw: /* redraw screen */
612: reset_display();
613: break;
614:
615: case CMD_update: /* merely update display */
616: /*
617: * is the load average high?
618: */
619: if (system_info.load_avg[0] > LoadMax) {
620: /* yes, go home for visual feedback */
621: go_home();
622: fflush(stdout);
1.1 downsj 623: }
1.20 deraadt 624: break;
625:
626: case CMD_quit: /* quit */
627: quit(0);
628: break;
629:
630: case CMD_help1: /* help */
631: case CMD_help2:
632: reset_display();
633: clear();
634: show_help();
635: standout("Hit any key to continue: ");
636: fflush(stdout);
637: (void) read(0, &ch, 1);
638: break;
639:
640: case CMD_errors: /* show errors */
641: if (error_count() == 0) {
642: new_message(MT_standout,
643: " Currently no errors to report.");
644: if (putchar('\r') == EOF)
645: exit(1);
646: no_command = Yes;
647: } else {
1.1 downsj 648: reset_display();
649: clear();
1.20 deraadt 650: show_errors();
1.1 downsj 651: standout("Hit any key to continue: ");
652: fflush(stdout);
653: (void) read(0, &ch, 1);
1.20 deraadt 654: }
655: break;
656:
657: case CMD_number1: /* new number */
658: case CMD_number2:
659: new_message(MT_standout,
660: "Number of processes to show: ");
661: newval = readline(tempbuf1, 8, Yes);
662: if (newval > -1) {
663: if (newval > max_topn) {
1.1 downsj 664: new_message(MT_standout | MT_delayed,
1.20 deraadt 665: " This terminal can only "
666: "display %d processes.",
667: max_topn);
1.9 deraadt 668: if (putchar('\r') == EOF)
1.20 deraadt 669: exit(1);
670: }
671: if (newval == 0)
1.1 downsj 672: display_header(No);
1.20 deraadt 673: else if (newval > topn && topn == 0) {
1.1 downsj 674: /* redraw the header */
675: display_header(Yes);
676: d_header = i_header;
677: }
1.20 deraadt 678: topn = newval;
679: }
680: break;
681:
682: case CMD_delay: /* new seconds delay */
683: new_message(MT_standout, "Seconds to delay: ");
684: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
685: char *endp;
686: double newdelay = strtod(tempbuf2, &endp);
687:
688: if (newdelay >= 0 && newdelay < 1000000 &&
689: *endp == '\0')
1.16 hugh 690: delay = newdelay;
1.20 deraadt 691: }
692: clear_message();
693: break;
694:
695: case CMD_displays: /* change display count */
696: new_message(MT_standout,
697: "Displays to show (currently %s): ",
698: displays == -1 ? "infinite" :
699: itoa(displays));
700: if ((i = readline(tempbuf1, 10, Yes)) > 0)
701: displays = i;
702: else if (i == 0)
703: quit(0);
704:
705: clear_message();
706: break;
707:
708: case CMD_kill: /* kill program */
709: new_message(0, "kill ");
710: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
711: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 712: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 713: if (putchar('\r') == EOF)
1.20 deraadt 714: exit(1);
1.1 downsj 715: no_command = Yes;
716: }
1.20 deraadt 717: } else
718: clear_message();
719: break;
720:
721: case CMD_renice: /* renice program */
722: new_message(0, "renice ");
723: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
724: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 725: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 726: if (putchar('\r') == EOF)
1.20 deraadt 727: exit(1);
1.1 downsj 728: no_command = Yes;
729: }
1.20 deraadt 730: } else
731: clear_message();
732: break;
1.1 downsj 733:
1.20 deraadt 734: case CMD_idletog:
735: case CMD_idletog2:
736: ps.idle = !ps.idle;
737: new_message(MT_standout | MT_delayed,
738: " %sisplaying idle processes.",
739: ps.idle ? "D" : "Not d");
740: if (putchar('\r') == EOF)
741: exit(1);
742: break;
1.1 downsj 743:
1.20 deraadt 744: case CMD_user:
745: new_message(MT_standout,
746: "Username to show: ");
747: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
748: if (tempbuf2[0] == '+' &&
749: tempbuf2[1] == '\0') {
1.21 millert 750: ps.uid = (uid_t)-1;
751: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 752: new_message(MT_standout,
753: " %s: unknown user", tempbuf2);
754: no_command = Yes;
1.20 deraadt 755: } else
1.21 millert 756: ps.uid = uid;
1.20 deraadt 757: if (putchar('\r') == EOF)
758: exit(1);
759: } else
760: clear_message();
761: break;
1.12 fgsch 762:
1.20 deraadt 763: case CMD_system:
764: ps.system = !ps.system;
765: new_message(MT_standout | MT_delayed,
766: " %sisplaying system processes.",
767: ps.system ? "D" : "Not d");
768: break;
769:
770: case CMD_order:
771: new_message(MT_standout,
772: "Order to sort: ");
773: if (readline(tempbuf2,
774: sizeof(tempbuf2), No) > 0) {
775: if ((i = string_index(tempbuf2,
776: statics.order_names)) == -1) {
777: new_message(MT_standout,
778: " %s: unrecognized sorting order",
779: tempbuf2);
780: no_command = Yes;
781: } else
1.1 downsj 782: order_index = i;
1.9 deraadt 783: if (putchar('\r') == EOF)
1.20 deraadt 784: exit(1);
785: } else
786: clear_message();
787: break;
1.1 downsj 788:
1.20 deraadt 789: default:
790: new_message(MT_standout, " BAD CASE IN SWITCH!");
791: if (putchar('\r') == EOF)
792: exit(1);
1.1 downsj 793: }
794: }
795:
1.20 deraadt 796: /* flush out stuff that may have been written */
797: fflush(stdout);
798: return 0;
1.1 downsj 799: }
800:
1.20 deraadt 801:
1.1 downsj 802: /*
803: * reset_display() - reset all the display routine pointers so that entire
804: * screen will get redrawn.
805: */
1.19 pvalchev 806: static void
807: reset_display(void)
1.1 downsj 808: {
1.20 deraadt 809: d_loadave = i_loadave;
810: d_procstates = i_procstates;
811: d_cpustates = i_cpustates;
812: d_memory = i_memory;
813: d_message = i_message;
814: d_header = i_header;
815: d_process = i_process;
1.1 downsj 816: }
817:
1.19 pvalchev 818: void
1.20 deraadt 819: leave(int signo)
1.1 downsj 820: {
1.20 deraadt 821: leaveflag = 1;
1.1 downsj 822: }
823:
1.19 pvalchev 824: void
1.20 deraadt 825: tstop(int signo)
1.1 downsj 826: {
1.20 deraadt 827: tstopflag = 1;
1.1 downsj 828: }
829:
830: #ifdef SIGWINCH
1.19 pvalchev 831: void
1.20 deraadt 832: winch(int signo)
1.1 downsj 833: {
1.20 deraadt 834: winchflag = 1;
1.1 downsj 835: }
836: #endif
837:
1.19 pvalchev 838: void
1.20 deraadt 839: onalrm(int signo)
1.1 downsj 840: {
841: }
842:
1.19 pvalchev 843: void
1.20 deraadt 844: quit(int ret)
1.1 downsj 845: {
1.20 deraadt 846: end_screen();
847: exit(ret);
1.1 downsj 848: }