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1.22 ! deraadt 1: /* $OpenBSD: top.c,v 1.21 2003/06/15 16:24:44 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>
34: #include <stdio.h>
35: #include <ctype.h>
1.1 downsj 36: #include <signal.h>
37: #include <setjmp.h>
1.2 downsj 38: #include <string.h>
39: #include <stdlib.h>
40: #include <unistd.h>
1.5 deraadt 41: #include <errno.h>
1.1 downsj 42: #include <sys/time.h>
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:
76: /* values which need to be accessed by signal handlers */
1.20 deraadt 77: static int max_topn; /* maximum displayable processes */
1.1 downsj 78:
79: /* miscellaneous things */
1.20 deraadt 80: jmp_buf jmp_int;
1.1 downsj 81:
1.20 deraadt 82: extern int (*proc_compares[])(const void *, const void *);
83: int order_index;
1.1 downsj 84:
85: /* pointers to display routines */
1.20 deraadt 86: void (*d_loadave) () = i_loadave;
87: void (*d_procstates) () = i_procstates;
88: void (*d_cpustates) () = i_cpustates;
89: void (*d_memory) () = i_memory;
90: void (*d_message) () = i_message;
91: void (*d_header) () = i_header;
92: void (*d_process) () = i_process;
93:
94: int displays = 0; /* indicates unspecified */
95: char do_unames = Yes;
96: struct process_select ps;
97: char dostates = No;
98: char interactive = Maybe;
99: char warnings = 0;
100: double delay = Default_DELAY;
101: char *order_name = NULL;
102: int topn = Default_TOPN;
103: int no_command = 1;
1.1 downsj 104:
105: #if Default_TOPN == Infinity
1.20 deraadt 106: char topn_specified = No;
1.1 downsj 107: #endif
108:
1.20 deraadt 109: /*
110: * these defines enumerate the "strchr"s of the commands in
111: * command_chars
112: */
1.1 downsj 113: #define CMD_redraw 0
114: #define CMD_update 1
115: #define CMD_quit 2
116: #define CMD_help1 3
117: #define CMD_help2 4
1.20 deraadt 118: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
119: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 120: #define CMD_number1 6
121: #define CMD_number2 7
122: #define CMD_delay 8
123: #define CMD_displays 9
124: #define CMD_kill 10
125: #define CMD_renice 11
126: #define CMD_idletog 12
127: #define CMD_idletog2 13
128: #define CMD_user 14
1.12 fgsch 129: #define CMD_system 15
130: #define CMD_order 16
1.1 downsj 131:
1.20 deraadt 132: void
133: usage(void)
134: {
1.22 ! deraadt 135: extern char *__progname;
! 136:
1.20 deraadt 137: fprintf(stderr,
1.22 ! deraadt 138: "usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
! 139: __progname);
1.20 deraadt 140: }
141:
142: void
143: parseargs(int ac, char **av)
144: {
145: char *endp;
146: int i;
147:
148: while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != -1) {
149: switch (i) {
150: case 'u': /* toggle uid/username display */
151: do_unames = !do_unames;
152: break;
153:
154: case 'U': /* display only username's processes */
1.21 millert 155: if ((ps.uid = userid(optarg)) == (uid_t)-1) {
1.20 deraadt 156: fprintf(stderr, "%s: unknown user\n", optarg);
157: exit(1);
158: }
159: break;
1.1 downsj 160:
1.20 deraadt 161: case 'S': /* show system processes */
162: ps.system = !ps.system;
163: break;
164:
165: case 'I': /* show idle processes */
166: ps.idle = !ps.idle;
167: break;
168:
169: case 'i': /* go interactive regardless */
170: interactive = Yes;
171: break;
172:
173: case 'n': /* batch, or non-interactive */
174: case 'b':
175: interactive = No;
176: break;
177:
178: case 'd': /* number of displays to show */
179: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
180: displays = i;
181: break;
182: }
1.22 ! deraadt 183: warnx("warning: display count should be positive "
! 184: "-- option ignored");
1.20 deraadt 185: warnings++;
186: break;
187:
188: case 's':
189: delay = strtod(optarg, &endp);
190:
191: if (delay > 0 && delay <= 1000000 && *endp == '\0')
192: break;
193:
1.22 ! deraadt 194: warnx("warning: delay should be a non-negative number"
! 195: " -- using default");
1.20 deraadt 196: delay = Default_DELAY;
197: warnings++;
198: break;
199:
200: case 'q': /* be quick about it */
201: /* only allow this if user is really root */
202: if (getuid() == 0) {
203: /* be very un-nice! */
204: (void) nice(-20);
205: break;
206: }
1.22 ! deraadt 207: warnx("warning: `-q' option can only be used by root");
1.20 deraadt 208: warnings++;
209: break;
210:
211: case 'o': /* select sort order */
212: order_name = optarg;
213: break;
214:
215: default:
216: usage();
217: exit(1);
1.1 downsj 218: }
1.20 deraadt 219: }
1.1 downsj 220:
1.20 deraadt 221: /* get count of top processes to display (if any) */
222: if (optind < ac) {
223: if ((topn = atoiwi(av[optind])) == Invalid) {
1.22 ! deraadt 224: warnx("warning: process display count should "
! 225: "be non-negative -- using default");
1.20 deraadt 226: warnings++;
1.1 downsj 227: }
1.20 deraadt 228: #if Default_TOPN == Infinity
1.1 downsj 229: else
1.20 deraadt 230: topn_specified = Yes;
231: #endif
232: }
233: }
1.1 downsj 234:
1.20 deraadt 235: struct system_info system_info;
236: struct statics statics;
1.1 downsj 237:
1.20 deraadt 238: int
239: main(int argc, char *argv[])
240: {
241: char *uname_field = "USERNAME", *header_text, *env_top;
242: char *(*get_userid)() = username, **preset_argv, **av;
243: int preset_argc = 0, ac, active_procs, i;
244: sigset_t mask, oldmask;
245: time_t curr_time;
246: caddr_t processes;
1.1 downsj 247:
1.20 deraadt 248: /* set the buffer for stdout */
249: #ifdef DEBUG
250: setbuffer(stdout, NULL, 0);
1.1 downsj 251: #else
1.20 deraadt 252: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 253: #endif
254:
1.20 deraadt 255: /* initialize some selection options */
256: ps.idle = Yes;
257: ps.system = No;
1.21 millert 258: ps.uid = (uid_t)-1;
1.20 deraadt 259: ps.command = NULL;
260:
261: /* get preset options from the environment */
262: if ((env_top = getenv("TOP")) != NULL) {
263: av = preset_argv = argparse(env_top, &preset_argc);
264: ac = preset_argc;
265:
266: /*
267: * set the dummy argument to an explanatory message, in case
268: * getopt encounters a bad argument
269: */
270: preset_argv[0] = "while processing environment";
271: }
272: /* process options */
273: do {
274: /*
275: * if we're done doing the presets, then process the real
276: * arguments
277: */
278: if (preset_argc == 0) {
279: ac = argc;
280: av = argv;
281: optind = 1;
282: }
283: parseargs(ac, av);
284: i = preset_argc;
285: preset_argc = 0;
286: } while (i != 0);
287:
288: /* set constants for username/uid display correctly */
289: if (!do_unames) {
290: uname_field = " UID ";
291: get_userid = itoa7;
292: }
293: /* initialize the kernel memory interface */
294: if (machine_init(&statics) == -1)
1.1 downsj 295: exit(1);
1.20 deraadt 296:
297: /* determine sorting order index, if necessary */
298: if (order_name != NULL) {
299: if ((order_index = string_index(order_name,
300: statics.order_names)) == -1) {
301: char **pp;
302:
1.22 ! deraadt 303: warnx("'%s' is not a recognized sorting order",
! 304: order_name);
1.20 deraadt 305: fprintf(stderr, "\tTry one of these:");
306: pp = statics.order_names;
307: while (*pp != NULL)
308: fprintf(stderr, " %s", *pp++);
309: fputc('\n', stderr);
310: exit(1);
311: }
1.1 downsj 312: }
313:
1.20 deraadt 314: /* initialize termcap */
315: init_termcap(interactive);
316:
317: /* get the string to use for the process area header */
318: header_text = format_header(uname_field);
319:
320: /* initialize display interface */
321: if ((max_topn = display_init(&statics)) == -1) {
1.22 ! deraadt 322: warnx("can't allocate sufficient memory");
1.20 deraadt 323: exit(4);
324: }
325: /* print warning if user requested more processes than we can display */
326: if (topn > max_topn) {
1.22 ! deraadt 327: warnx("warning: this terminal can only display %d processes",
! 328: max_topn);
1.1 downsj 329: warnings++;
1.20 deraadt 330: }
331: /* adjust for topn == Infinity */
332: if (topn == Infinity) {
333: /*
334: * For smart terminals, infinity really means everything that can
335: * be displayed, or Largest.
336: * On dumb terminals, infinity means every process in the system!
337: * We only really want to do that if it was explicitly specified.
338: * This is always the case when "Default_TOPN != Infinity". But if
339: * topn wasn't explicitly specified and we are on a dumb terminal
340: * and the default is Infinity, then (and only then) we use
341: * "Nominal_TOPN" instead.
342: */
1.1 downsj 343: #if Default_TOPN == Infinity
1.20 deraadt 344: topn = smart_terminal ? Largest :
345: (topn_specified ? Largest : Nominal_TOPN);
346: #else
347: topn = Largest;
1.1 downsj 348: #endif
349: }
1.20 deraadt 350: /* set header display accordingly */
351: display_header(topn > 0);
1.1 downsj 352:
1.20 deraadt 353: /* determine interactive state */
354: if (interactive == Maybe)
355: interactive = smart_terminal;
1.1 downsj 356:
1.20 deraadt 357: /* if # of displays not specified, fill it in */
358: if (displays == 0)
359: displays = smart_terminal ? Infinity : 1;
1.1 downsj 360:
361: /*
1.20 deraadt 362: * block interrupt signals while setting up the screen and the
363: * handlers
1.1 downsj 364: */
1.20 deraadt 365: sigemptyset(&mask);
366: sigaddset(&mask, SIGINT);
367: sigaddset(&mask, SIGQUIT);
368: sigaddset(&mask, SIGTSTP);
369: sigprocmask(SIG_BLOCK, &mask, &oldmask);
370: init_screen();
371: (void) signal(SIGINT, leave);
372: (void) signal(SIGQUIT, leave);
373: (void) signal(SIGTSTP, tstop);
1.1 downsj 374: #ifdef SIGWINCH
1.20 deraadt 375: (void) signal(SIGWINCH, winch);
1.1 downsj 376: #endif
1.20 deraadt 377: sigprocmask(SIG_SETMASK, &oldmask, NULL);
378: if (warnings) {
379: fputs("....", stderr);
380: fflush(stderr); /* why must I do this? */
381: sleep((unsigned) (3 * warnings));
382: fputc('\n', stderr);
383: }
1.7 deraadt 384: restart:
1.1 downsj 385:
1.20 deraadt 386: /*
387: * main loop -- repeat while display count is positive or while it
388: * indicates infinity (by being -1)
389: */
390: while ((displays == -1) || (displays-- > 0)) {
391: /* get the current stats */
392: get_system_info(&system_info);
393:
394: /* get the current set of processes */
395: processes = get_process_info(&system_info, &ps,
396: proc_compares[order_index]);
397:
398: /* display the load averages */
399: (*d_loadave)(system_info.last_pid, system_info.load_avg);
400:
401: /* display the current time */
402: /* this method of getting the time SHOULD be fairly portable */
403: time(&curr_time);
404: i_timeofday(&curr_time);
405:
406: /* display process state breakdown */
407: (*d_procstates)(system_info.p_total, system_info.procstates);
408:
409: /* display the cpu state percentage breakdown */
410: if (dostates) { /* but not the first time */
411: (*d_cpustates) (system_info.cpustates);
412: } else {
413: /* we'll do it next time */
414: if (smart_terminal)
415: z_cpustates();
416: else {
417: if (putchar('\n') == EOF)
418: exit(1);
419: }
420: dostates = Yes;
421: }
1.1 downsj 422:
1.20 deraadt 423: /* display memory stats */
424: (*d_memory) (system_info.memory);
1.1 downsj 425:
1.20 deraadt 426: /* handle message area */
427: (*d_message) ();
1.1 downsj 428:
1.20 deraadt 429: /* update the header area */
430: (*d_header) (header_text);
431:
432: if (topn > 0) {
433: /* determine number of processes to actually display */
434: /*
435: * this number will be the smallest of: active
436: * processes, number user requested, number current
437: * screen accommodates
438: */
439: active_procs = system_info.p_active;
440: if (active_procs > topn)
441: active_procs = topn;
442: if (active_procs > max_topn)
443: active_procs = max_topn;
444: /* now show the top "n" processes. */
445: for (i = 0; i < active_procs; i++)
446: (*d_process)(i, format_next_process(processes,
447: get_userid));
448: } else
449: i = 0;
450:
451: /* do end-screen processing */
452: u_endscreen(i);
453:
454: /* now, flush the output buffer */
455: fflush(stdout);
456:
457: /* only do the rest if we have more displays to show */
458: if (displays) {
459: /* switch out for new display on smart terminals */
460: if (smart_terminal) {
461: if (overstrike) {
462: reset_display();
463: } else {
464: d_loadave = u_loadave;
465: d_procstates = u_procstates;
466: d_cpustates = u_cpustates;
467: d_memory = u_memory;
468: d_message = u_message;
469: d_header = u_header;
470: d_process = u_process;
471: }
472: }
473: no_command = Yes;
474: if (!interactive) {
475: /* set up alarm */
476: (void) signal(SIGALRM, onalrm);
477: (void) alarm((unsigned) delay);
478:
479: /* wait for the rest of it .... */
480: pause();
481: } else {
482: while (no_command)
483: if (rundisplay())
484: goto restart;
485: }
486: }
487: }
1.1 downsj 488:
1.20 deraadt 489: quit(0);
490: /* NOTREACHED */
491: return (0);
492: }
1.7 deraadt 493:
1.20 deraadt 494: int
495: rundisplay(void)
496: {
497: static char tempbuf1[50], tempbuf2[50];
498: struct timeval timeout;
499: fd_set readfds;
500: sigset_t mask;
501: char ch, *iptr;
502: int change, i;
1.21 millert 503: uid_t uid;
1.20 deraadt 504: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.7 deraadt 505:
1.20 deraadt 506: /*
507: * assume valid command unless told
508: * otherwise
509: */
510: no_command = No;
1.7 deraadt 511:
1.20 deraadt 512: /*
513: * set up arguments for select with
514: * timeout
515: */
516: FD_ZERO(&readfds);
517: FD_SET(STDIN_FILENO, &readfds);
518: timeout.tv_sec = (long) delay;
519: timeout.tv_usec = (long) ((delay - timeout.tv_sec) * 1000000);
520:
521: if (leaveflag) {
522: end_screen();
523: exit(0);
524: }
525: if (tstopflag) {
526: /* move to the lower left */
527: end_screen();
528: fflush(stdout);
529:
530: /*
531: * default the signal handler
532: * action
533: */
534: (void) signal(SIGTSTP, SIG_DFL);
535:
536: /*
537: * unblock the signal and
538: * send ourselves one
539: */
540: sigemptyset(&mask);
541: sigaddset(&mask, SIGTSTP);
542: sigprocmask(SIG_UNBLOCK, &mask, NULL);
543: (void) kill(0, SIGTSTP);
544:
545: /* reset the signal handler */
546: (void) signal(SIGTSTP, tstop);
547:
548: /* reinit screen */
549: reinit_screen();
550: reset_display();
551: tstopflag = 0;
552: return 1;
553: }
554: if (winchflag) {
555: /*
556: * reascertain the screen
557: * dimensions
558: */
559: get_screensize();
560:
561: /* tell display to resize */
562: max_topn = display_resize();
563:
564: /* reset the signal handler */
565: (void) signal(SIGWINCH, winch);
566:
567: reset_display();
568: winchflag = 0;
569: return 1;
570: }
571: /*
572: * wait for either input or the end
573: * of the delay period
574: */
575: if (select(STDIN_FILENO + 1, &readfds, (fd_set *) NULL,
576: (fd_set *) NULL, &timeout) > 0) {
577: char *errmsg;
578: int newval;
579:
580: clear_message();
581:
582: /*
583: * now read it and convert to
584: * command strchr
585: */
586: (void) read(0, &ch, 1);
587: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 588: /* illegal command */
589: new_message(MT_standout, " Command not understood");
1.9 deraadt 590: if (putchar('\r') == EOF)
1.20 deraadt 591: exit(1);
1.1 downsj 592: no_command = Yes;
1.20 deraadt 593: fflush(stdout);
594: return (0);
595: }
596:
597: change = iptr - command_chars;
598: if (overstrike && change > CMD_OSLIMIT) {
599: /* error */
600: new_message(MT_standout,
1.1 downsj 601: " Command cannot be handled by this terminal");
1.20 deraadt 602: if (putchar('\r') == EOF)
603: exit(1);
604: no_command = Yes;
605: fflush(stdout);
606: return (0);
607: }
608:
609: switch (change) {
610: case CMD_redraw: /* redraw screen */
611: reset_display();
612: break;
613:
614: case CMD_update: /* merely update display */
615: /*
616: * is the load average high?
617: */
618: if (system_info.load_avg[0] > LoadMax) {
619: /* yes, go home for visual feedback */
620: go_home();
621: fflush(stdout);
1.1 downsj 622: }
1.20 deraadt 623: break;
624:
625: case CMD_quit: /* quit */
626: quit(0);
627: break;
628:
629: case CMD_help1: /* help */
630: case CMD_help2:
631: reset_display();
632: clear();
633: show_help();
634: standout("Hit any key to continue: ");
635: fflush(stdout);
636: (void) read(0, &ch, 1);
637: break;
638:
639: case CMD_errors: /* show errors */
640: if (error_count() == 0) {
641: new_message(MT_standout,
642: " Currently no errors to report.");
643: if (putchar('\r') == EOF)
644: exit(1);
645: no_command = Yes;
646: } else {
1.1 downsj 647: reset_display();
648: clear();
1.20 deraadt 649: show_errors();
1.1 downsj 650: standout("Hit any key to continue: ");
651: fflush(stdout);
652: (void) read(0, &ch, 1);
1.20 deraadt 653: }
654: break;
655:
656: case CMD_number1: /* new number */
657: case CMD_number2:
658: new_message(MT_standout,
659: "Number of processes to show: ");
660: newval = readline(tempbuf1, 8, Yes);
661: if (newval > -1) {
662: if (newval > max_topn) {
1.1 downsj 663: new_message(MT_standout | MT_delayed,
1.20 deraadt 664: " This terminal can only "
665: "display %d processes.",
666: max_topn);
1.9 deraadt 667: if (putchar('\r') == EOF)
1.20 deraadt 668: exit(1);
669: }
670: if (newval == 0)
1.1 downsj 671: display_header(No);
1.20 deraadt 672: else if (newval > topn && topn == 0) {
1.1 downsj 673: /* redraw the header */
674: display_header(Yes);
675: d_header = i_header;
676: }
1.20 deraadt 677: topn = newval;
678: }
679: break;
680:
681: case CMD_delay: /* new seconds delay */
682: new_message(MT_standout, "Seconds to delay: ");
683: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
684: char *endp;
685: double newdelay = strtod(tempbuf2, &endp);
686:
687: if (newdelay >= 0 && newdelay < 1000000 &&
688: *endp == '\0')
1.16 hugh 689: delay = newdelay;
1.20 deraadt 690: }
691: clear_message();
692: break;
693:
694: case CMD_displays: /* change display count */
695: new_message(MT_standout,
696: "Displays to show (currently %s): ",
697: displays == -1 ? "infinite" :
698: itoa(displays));
699: if ((i = readline(tempbuf1, 10, Yes)) > 0)
700: displays = i;
701: else if (i == 0)
702: quit(0);
703:
704: clear_message();
705: break;
706:
707: case CMD_kill: /* kill program */
708: new_message(0, "kill ");
709: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
710: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 711: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 712: if (putchar('\r') == EOF)
1.20 deraadt 713: exit(1);
1.1 downsj 714: no_command = Yes;
715: }
1.20 deraadt 716: } else
717: clear_message();
718: break;
719:
720: case CMD_renice: /* renice program */
721: new_message(0, "renice ");
722: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
723: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 724: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 725: if (putchar('\r') == EOF)
1.20 deraadt 726: exit(1);
1.1 downsj 727: no_command = Yes;
728: }
1.20 deraadt 729: } else
730: clear_message();
731: break;
1.1 downsj 732:
1.20 deraadt 733: case CMD_idletog:
734: case CMD_idletog2:
735: ps.idle = !ps.idle;
736: new_message(MT_standout | MT_delayed,
737: " %sisplaying idle processes.",
738: ps.idle ? "D" : "Not d");
739: if (putchar('\r') == EOF)
740: exit(1);
741: break;
1.1 downsj 742:
1.20 deraadt 743: case CMD_user:
744: new_message(MT_standout,
745: "Username to show: ");
746: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
747: if (tempbuf2[0] == '+' &&
748: tempbuf2[1] == '\0') {
1.21 millert 749: ps.uid = (uid_t)-1;
750: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 751: new_message(MT_standout,
752: " %s: unknown user", tempbuf2);
753: no_command = Yes;
1.20 deraadt 754: } else
1.21 millert 755: ps.uid = uid;
1.20 deraadt 756: if (putchar('\r') == EOF)
757: exit(1);
758: } else
759: clear_message();
760: break;
1.12 fgsch 761:
1.20 deraadt 762: case CMD_system:
763: ps.system = !ps.system;
764: new_message(MT_standout | MT_delayed,
765: " %sisplaying system processes.",
766: ps.system ? "D" : "Not d");
767: break;
768:
769: case CMD_order:
770: new_message(MT_standout,
771: "Order to sort: ");
772: if (readline(tempbuf2,
773: sizeof(tempbuf2), No) > 0) {
774: if ((i = string_index(tempbuf2,
775: statics.order_names)) == -1) {
776: new_message(MT_standout,
777: " %s: unrecognized sorting order",
778: tempbuf2);
779: no_command = Yes;
780: } else
1.1 downsj 781: order_index = i;
1.9 deraadt 782: if (putchar('\r') == EOF)
1.20 deraadt 783: exit(1);
784: } else
785: clear_message();
786: break;
1.1 downsj 787:
1.20 deraadt 788: default:
789: new_message(MT_standout, " BAD CASE IN SWITCH!");
790: if (putchar('\r') == EOF)
791: exit(1);
1.1 downsj 792: }
793: }
794:
1.20 deraadt 795: /* flush out stuff that may have been written */
796: fflush(stdout);
797: return 0;
1.1 downsj 798: }
799:
1.20 deraadt 800:
1.1 downsj 801: /*
802: * reset_display() - reset all the display routine pointers so that entire
803: * screen will get redrawn.
804: */
1.19 pvalchev 805: static void
806: reset_display(void)
1.1 downsj 807: {
1.20 deraadt 808: d_loadave = i_loadave;
809: d_procstates = i_procstates;
810: d_cpustates = i_cpustates;
811: d_memory = i_memory;
812: d_message = i_message;
813: d_header = i_header;
814: d_process = i_process;
1.1 downsj 815: }
816:
1.19 pvalchev 817: void
1.20 deraadt 818: leave(int signo)
1.1 downsj 819: {
1.20 deraadt 820: leaveflag = 1;
1.1 downsj 821: }
822:
1.19 pvalchev 823: void
1.20 deraadt 824: tstop(int signo)
1.1 downsj 825: {
1.20 deraadt 826: tstopflag = 1;
1.1 downsj 827: }
828:
829: #ifdef SIGWINCH
1.19 pvalchev 830: void
1.20 deraadt 831: winch(int signo)
1.1 downsj 832: {
1.20 deraadt 833: winchflag = 1;
1.1 downsj 834: }
835: #endif
836:
1.19 pvalchev 837: void
1.20 deraadt 838: onalrm(int signo)
1.1 downsj 839: {
840: }
841:
1.19 pvalchev 842: void
1.20 deraadt 843: quit(int ret)
1.1 downsj 844: {
1.20 deraadt 845: end_screen();
846: exit(ret);
1.1 downsj 847: }