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1.21 ! millert 1: /* $OpenBSD: top.c,v 1.20 2003/06/13 21:52:25 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>
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:
82: /* routines that don't return int */
83:
1.20 deraadt 84: extern char *__progname;
1.1 downsj 85:
1.20 deraadt 86: extern int (*proc_compares[])(const void *, const void *);
87: int order_index;
1.1 downsj 88:
89: /* pointers to display routines */
1.20 deraadt 90: void (*d_loadave) () = i_loadave;
91: void (*d_procstates) () = i_procstates;
92: void (*d_cpustates) () = i_cpustates;
93: void (*d_memory) () = i_memory;
94: void (*d_message) () = i_message;
95: void (*d_header) () = i_header;
96: void (*d_process) () = i_process;
97:
98: int displays = 0; /* indicates unspecified */
99: char do_unames = Yes;
100: struct process_select ps;
101: char dostates = No;
102: char interactive = Maybe;
103: char warnings = 0;
104: double delay = Default_DELAY;
105: char *order_name = NULL;
106: int topn = Default_TOPN;
107: int no_command = 1;
1.1 downsj 108:
109: #if Default_TOPN == Infinity
1.20 deraadt 110: char topn_specified = No;
1.1 downsj 111: #endif
112:
1.20 deraadt 113: /*
114: * these defines enumerate the "strchr"s of the commands in
115: * command_chars
116: */
1.1 downsj 117: #define CMD_redraw 0
118: #define CMD_update 1
119: #define CMD_quit 2
120: #define CMD_help1 3
121: #define CMD_help2 4
1.20 deraadt 122: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
123: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 124: #define CMD_number1 6
125: #define CMD_number2 7
126: #define CMD_delay 8
127: #define CMD_displays 9
128: #define CMD_kill 10
129: #define CMD_renice 11
130: #define CMD_idletog 12
131: #define CMD_idletog2 13
132: #define CMD_user 14
1.12 fgsch 133: #define CMD_system 15
134: #define CMD_order 16
1.1 downsj 135:
1.20 deraadt 136: void
137: usage(void)
138: {
139: fprintf(stderr,
140: "Top version %s\n"
141: "Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
142: version_string(), __progname);
143: }
144:
145: void
146: parseargs(int ac, char **av)
147: {
148: char *endp;
149: int i;
150:
151: while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != -1) {
152: switch (i) {
153: case 'u': /* toggle uid/username display */
154: do_unames = !do_unames;
155: break;
156:
157: case 'U': /* display only username's processes */
1.21 ! millert 158: if ((ps.uid = userid(optarg)) == (uid_t)-1) {
1.20 deraadt 159: fprintf(stderr, "%s: unknown user\n", optarg);
160: exit(1);
161: }
162: break;
1.1 downsj 163:
1.20 deraadt 164: case 'S': /* show system processes */
165: ps.system = !ps.system;
166: break;
167:
168: case 'I': /* show idle processes */
169: ps.idle = !ps.idle;
170: break;
171:
172: case 'i': /* go interactive regardless */
173: interactive = Yes;
174: break;
175:
176: case 'n': /* batch, or non-interactive */
177: case 'b':
178: interactive = No;
179: break;
180:
181: case 'd': /* number of displays to show */
182: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
183: displays = i;
184: break;
185: }
186: fprintf(stderr,
187: "%s: warning: display count should be positive "
188: "-- option ignored\n",
189: __progname);
190: warnings++;
191: break;
192:
193: case 's':
194: delay = strtod(optarg, &endp);
195:
196: if (delay > 0 && delay <= 1000000 && *endp == '\0')
197: break;
198:
199: fprintf(stderr,
200: "%s: warning: delay should be a non-negative number"
201: " -- using default\n",
202: __progname);
203: delay = Default_DELAY;
204: warnings++;
205: break;
206:
207: case 'q': /* be quick about it */
208: /* only allow this if user is really root */
209: if (getuid() == 0) {
210: /* be very un-nice! */
211: (void) nice(-20);
212: break;
213: }
214: fprintf(stderr,
215: "%s: warning: `-q' option can only be used by root\n",
216: __progname);
217: warnings++;
218: break;
219:
220: case 'o': /* select sort order */
221: order_name = optarg;
222: break;
223:
224: default:
225: usage();
226: exit(1);
1.1 downsj 227: }
1.20 deraadt 228: }
1.1 downsj 229:
1.20 deraadt 230: /* get count of top processes to display (if any) */
231: if (optind < ac) {
232: if ((topn = atoiwi(av[optind])) == Invalid) {
233: fprintf(stderr,
234: "%s: warning: process display count should "
235: "be non-negative -- using default\n",
236: __progname);
237: warnings++;
1.1 downsj 238: }
1.20 deraadt 239: #if Default_TOPN == Infinity
1.1 downsj 240: else
1.20 deraadt 241: topn_specified = Yes;
242: #endif
243: }
244: }
1.1 downsj 245:
1.20 deraadt 246: struct system_info system_info;
247: struct statics statics;
1.1 downsj 248:
1.20 deraadt 249: int
250: main(int argc, char *argv[])
251: {
252: char *uname_field = "USERNAME", *header_text, *env_top;
253: char *(*get_userid)() = username, **preset_argv, **av;
254: int preset_argc = 0, ac, active_procs, i;
255: sigset_t mask, oldmask;
256: time_t curr_time;
257: caddr_t processes;
1.1 downsj 258:
1.20 deraadt 259: /* set the buffer for stdout */
260: #ifdef DEBUG
261: setbuffer(stdout, NULL, 0);
1.1 downsj 262: #else
1.20 deraadt 263: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 264: #endif
265:
1.20 deraadt 266: /* initialize some selection options */
267: ps.idle = Yes;
268: ps.system = No;
1.21 ! millert 269: ps.uid = (uid_t)-1;
1.20 deraadt 270: ps.command = NULL;
271:
272: /* get preset options from the environment */
273: if ((env_top = getenv("TOP")) != NULL) {
274: av = preset_argv = argparse(env_top, &preset_argc);
275: ac = preset_argc;
276:
277: /*
278: * set the dummy argument to an explanatory message, in case
279: * getopt encounters a bad argument
280: */
281: preset_argv[0] = "while processing environment";
282: }
283: /* process options */
284: do {
285: /*
286: * if we're done doing the presets, then process the real
287: * arguments
288: */
289: if (preset_argc == 0) {
290: ac = argc;
291: av = argv;
292: optind = 1;
293: }
294: parseargs(ac, av);
295: i = preset_argc;
296: preset_argc = 0;
297: } while (i != 0);
298:
299: /* set constants for username/uid display correctly */
300: if (!do_unames) {
301: uname_field = " UID ";
302: get_userid = itoa7;
303: }
304: /* initialize the kernel memory interface */
305: if (machine_init(&statics) == -1)
1.1 downsj 306: exit(1);
1.20 deraadt 307:
308: /* determine sorting order index, if necessary */
309: if (order_name != NULL) {
310: if ((order_index = string_index(order_name,
311: statics.order_names)) == -1) {
312: char **pp;
313:
314: fprintf(stderr, "%s: '%s' is not a recognized sorting order.\n",
315: __progname, order_name);
316: fprintf(stderr, "\tTry one of these:");
317: pp = statics.order_names;
318: while (*pp != NULL)
319: fprintf(stderr, " %s", *pp++);
320: fputc('\n', stderr);
321: exit(1);
322: }
1.1 downsj 323: }
324:
1.20 deraadt 325: /* initialize termcap */
326: init_termcap(interactive);
327:
328: /* get the string to use for the process area header */
329: header_text = format_header(uname_field);
330:
331: /* initialize display interface */
332: if ((max_topn = display_init(&statics)) == -1) {
333: fprintf(stderr, "%s: can't allocate sufficient memory\n", __progname);
334: exit(4);
335: }
336: /* print warning if user requested more processes than we can display */
337: if (topn > max_topn) {
1.1 downsj 338: fprintf(stderr,
1.20 deraadt 339: "%s: warning: this terminal can only display %d processes.\n",
340: __progname, max_topn);
1.1 downsj 341: warnings++;
1.20 deraadt 342: }
343: /* adjust for topn == Infinity */
344: if (topn == Infinity) {
345: /*
346: * For smart terminals, infinity really means everything that can
347: * be displayed, or Largest.
348: * On dumb terminals, infinity means every process in the system!
349: * We only really want to do that if it was explicitly specified.
350: * This is always the case when "Default_TOPN != Infinity". But if
351: * topn wasn't explicitly specified and we are on a dumb terminal
352: * and the default is Infinity, then (and only then) we use
353: * "Nominal_TOPN" instead.
354: */
1.1 downsj 355: #if Default_TOPN == Infinity
1.20 deraadt 356: topn = smart_terminal ? Largest :
357: (topn_specified ? Largest : Nominal_TOPN);
358: #else
359: topn = Largest;
1.1 downsj 360: #endif
361: }
1.20 deraadt 362: /* set header display accordingly */
363: display_header(topn > 0);
1.1 downsj 364:
1.20 deraadt 365: /* determine interactive state */
366: if (interactive == Maybe)
367: interactive = smart_terminal;
1.1 downsj 368:
1.20 deraadt 369: /* if # of displays not specified, fill it in */
370: if (displays == 0)
371: displays = smart_terminal ? Infinity : 1;
1.1 downsj 372:
373: /*
1.20 deraadt 374: * block interrupt signals while setting up the screen and the
375: * handlers
1.1 downsj 376: */
1.20 deraadt 377: sigemptyset(&mask);
378: sigaddset(&mask, SIGINT);
379: sigaddset(&mask, SIGQUIT);
380: sigaddset(&mask, SIGTSTP);
381: sigprocmask(SIG_BLOCK, &mask, &oldmask);
382: init_screen();
383: (void) signal(SIGINT, leave);
384: (void) signal(SIGQUIT, leave);
385: (void) signal(SIGTSTP, tstop);
1.1 downsj 386: #ifdef SIGWINCH
1.20 deraadt 387: (void) signal(SIGWINCH, winch);
1.1 downsj 388: #endif
1.20 deraadt 389: sigprocmask(SIG_SETMASK, &oldmask, NULL);
390: if (warnings) {
391: fputs("....", stderr);
392: fflush(stderr); /* why must I do this? */
393: sleep((unsigned) (3 * warnings));
394: fputc('\n', stderr);
395: }
1.7 deraadt 396: restart:
1.1 downsj 397:
1.20 deraadt 398: /*
399: * main loop -- repeat while display count is positive or while it
400: * indicates infinity (by being -1)
401: */
402: while ((displays == -1) || (displays-- > 0)) {
403: /* get the current stats */
404: get_system_info(&system_info);
405:
406: /* get the current set of processes */
407: processes = get_process_info(&system_info, &ps,
408: proc_compares[order_index]);
409:
410: /* display the load averages */
411: (*d_loadave)(system_info.last_pid, system_info.load_avg);
412:
413: /* display the current time */
414: /* this method of getting the time SHOULD be fairly portable */
415: time(&curr_time);
416: i_timeofday(&curr_time);
417:
418: /* display process state breakdown */
419: (*d_procstates)(system_info.p_total, system_info.procstates);
420:
421: /* display the cpu state percentage breakdown */
422: if (dostates) { /* but not the first time */
423: (*d_cpustates) (system_info.cpustates);
424: } else {
425: /* we'll do it next time */
426: if (smart_terminal)
427: z_cpustates();
428: else {
429: if (putchar('\n') == EOF)
430: exit(1);
431: }
432: dostates = Yes;
433: }
1.1 downsj 434:
1.20 deraadt 435: /* display memory stats */
436: (*d_memory) (system_info.memory);
1.1 downsj 437:
1.20 deraadt 438: /* handle message area */
439: (*d_message) ();
1.1 downsj 440:
1.20 deraadt 441: /* update the header area */
442: (*d_header) (header_text);
443:
444: if (topn > 0) {
445: /* determine number of processes to actually display */
446: /*
447: * this number will be the smallest of: active
448: * processes, number user requested, number current
449: * screen accommodates
450: */
451: active_procs = system_info.p_active;
452: if (active_procs > topn)
453: active_procs = topn;
454: if (active_procs > max_topn)
455: active_procs = max_topn;
456: /* now show the top "n" processes. */
457: for (i = 0; i < active_procs; i++)
458: (*d_process)(i, format_next_process(processes,
459: get_userid));
460: } else
461: i = 0;
462:
463: /* do end-screen processing */
464: u_endscreen(i);
465:
466: /* now, flush the output buffer */
467: fflush(stdout);
468:
469: /* only do the rest if we have more displays to show */
470: if (displays) {
471: /* switch out for new display on smart terminals */
472: if (smart_terminal) {
473: if (overstrike) {
474: reset_display();
475: } else {
476: d_loadave = u_loadave;
477: d_procstates = u_procstates;
478: d_cpustates = u_cpustates;
479: d_memory = u_memory;
480: d_message = u_message;
481: d_header = u_header;
482: d_process = u_process;
483: }
484: }
485: no_command = Yes;
486: if (!interactive) {
487: /* set up alarm */
488: (void) signal(SIGALRM, onalrm);
489: (void) alarm((unsigned) delay);
490:
491: /* wait for the rest of it .... */
492: pause();
493: } else {
494: while (no_command)
495: if (rundisplay())
496: goto restart;
497: }
498: }
499: }
1.1 downsj 500:
1.20 deraadt 501: quit(0);
502: /* NOTREACHED */
503: return (0);
504: }
1.7 deraadt 505:
1.20 deraadt 506: int
507: rundisplay(void)
508: {
509: static char tempbuf1[50], tempbuf2[50];
510: struct timeval timeout;
511: fd_set readfds;
512: sigset_t mask;
513: char ch, *iptr;
514: int change, i;
1.21 ! millert 515: uid_t uid;
1.20 deraadt 516: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.7 deraadt 517:
1.20 deraadt 518: /*
519: * assume valid command unless told
520: * otherwise
521: */
522: no_command = No;
1.7 deraadt 523:
1.20 deraadt 524: /*
525: * set up arguments for select with
526: * timeout
527: */
528: FD_ZERO(&readfds);
529: FD_SET(STDIN_FILENO, &readfds);
530: timeout.tv_sec = (long) delay;
531: timeout.tv_usec = (long) ((delay - timeout.tv_sec) * 1000000);
532:
533: if (leaveflag) {
534: end_screen();
535: exit(0);
536: }
537: if (tstopflag) {
538: /* move to the lower left */
539: end_screen();
540: fflush(stdout);
541:
542: /*
543: * default the signal handler
544: * action
545: */
546: (void) signal(SIGTSTP, SIG_DFL);
547:
548: /*
549: * unblock the signal and
550: * send ourselves one
551: */
552: sigemptyset(&mask);
553: sigaddset(&mask, SIGTSTP);
554: sigprocmask(SIG_UNBLOCK, &mask, NULL);
555: (void) kill(0, SIGTSTP);
556:
557: /* reset the signal handler */
558: (void) signal(SIGTSTP, tstop);
559:
560: /* reinit screen */
561: reinit_screen();
562: reset_display();
563: tstopflag = 0;
564: return 1;
565: }
566: if (winchflag) {
567: /*
568: * reascertain the screen
569: * dimensions
570: */
571: get_screensize();
572:
573: /* tell display to resize */
574: max_topn = display_resize();
575:
576: /* reset the signal handler */
577: (void) signal(SIGWINCH, winch);
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: */
587: if (select(STDIN_FILENO + 1, &readfds, (fd_set *) NULL,
588: (fd_set *) NULL, &timeout) > 0) {
589: char *errmsg;
590: int newval;
591:
592: clear_message();
593:
594: /*
595: * now read it and convert to
596: * command strchr
597: */
598: (void) read(0, &ch, 1);
599: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 600: /* illegal command */
601: new_message(MT_standout, " Command not understood");
1.9 deraadt 602: if (putchar('\r') == EOF)
1.20 deraadt 603: exit(1);
1.1 downsj 604: no_command = Yes;
1.20 deraadt 605: fflush(stdout);
606: return (0);
607: }
608:
609: change = iptr - command_chars;
610: if (overstrike && change > CMD_OSLIMIT) {
611: /* error */
612: new_message(MT_standout,
1.1 downsj 613: " Command cannot be handled by this terminal");
1.20 deraadt 614: if (putchar('\r') == EOF)
615: exit(1);
616: no_command = Yes;
617: fflush(stdout);
618: return (0);
619: }
620:
621: switch (change) {
622: case CMD_redraw: /* redraw screen */
623: reset_display();
624: break;
625:
626: case CMD_update: /* merely update display */
627: /*
628: * is the load average high?
629: */
630: if (system_info.load_avg[0] > LoadMax) {
631: /* yes, go home for visual feedback */
632: go_home();
633: fflush(stdout);
1.1 downsj 634: }
1.20 deraadt 635: break;
636:
637: case CMD_quit: /* quit */
638: quit(0);
639: break;
640:
641: case CMD_help1: /* help */
642: case CMD_help2:
643: reset_display();
644: clear();
645: show_help();
646: standout("Hit any key to continue: ");
647: fflush(stdout);
648: (void) read(0, &ch, 1);
649: break;
650:
651: case CMD_errors: /* show errors */
652: if (error_count() == 0) {
653: new_message(MT_standout,
654: " Currently no errors to report.");
655: if (putchar('\r') == EOF)
656: exit(1);
657: no_command = Yes;
658: } else {
1.1 downsj 659: reset_display();
660: clear();
1.20 deraadt 661: show_errors();
1.1 downsj 662: standout("Hit any key to continue: ");
663: fflush(stdout);
664: (void) read(0, &ch, 1);
1.20 deraadt 665: }
666: break;
667:
668: case CMD_number1: /* new number */
669: case CMD_number2:
670: new_message(MT_standout,
671: "Number of processes to show: ");
672: newval = readline(tempbuf1, 8, Yes);
673: if (newval > -1) {
674: if (newval > max_topn) {
1.1 downsj 675: new_message(MT_standout | MT_delayed,
1.20 deraadt 676: " This terminal can only "
677: "display %d processes.",
678: max_topn);
1.9 deraadt 679: if (putchar('\r') == EOF)
1.20 deraadt 680: exit(1);
681: }
682: if (newval == 0)
1.1 downsj 683: display_header(No);
1.20 deraadt 684: else if (newval > topn && topn == 0) {
1.1 downsj 685: /* redraw the header */
686: display_header(Yes);
687: d_header = i_header;
688: }
1.20 deraadt 689: topn = newval;
690: }
691: break;
692:
693: case CMD_delay: /* new seconds delay */
694: new_message(MT_standout, "Seconds to delay: ");
695: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
696: char *endp;
697: double newdelay = strtod(tempbuf2, &endp);
698:
699: if (newdelay >= 0 && newdelay < 1000000 &&
700: *endp == '\0')
1.16 hugh 701: delay = newdelay;
1.20 deraadt 702: }
703: clear_message();
704: break;
705:
706: case CMD_displays: /* change display count */
707: new_message(MT_standout,
708: "Displays to show (currently %s): ",
709: displays == -1 ? "infinite" :
710: itoa(displays));
711: if ((i = readline(tempbuf1, 10, Yes)) > 0)
712: displays = i;
713: else if (i == 0)
714: quit(0);
715:
716: clear_message();
717: break;
718:
719: case CMD_kill: /* kill program */
720: new_message(0, "kill ");
721: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
722: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 723: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 724: if (putchar('\r') == EOF)
1.20 deraadt 725: exit(1);
1.1 downsj 726: no_command = Yes;
727: }
1.20 deraadt 728: } else
729: clear_message();
730: break;
731:
732: case CMD_renice: /* renice program */
733: new_message(0, "renice ");
734: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
735: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 736: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 737: if (putchar('\r') == EOF)
1.20 deraadt 738: exit(1);
1.1 downsj 739: no_command = Yes;
740: }
1.20 deraadt 741: } else
742: clear_message();
743: break;
1.1 downsj 744:
1.20 deraadt 745: case CMD_idletog:
746: case CMD_idletog2:
747: ps.idle = !ps.idle;
748: new_message(MT_standout | MT_delayed,
749: " %sisplaying idle processes.",
750: ps.idle ? "D" : "Not d");
751: if (putchar('\r') == EOF)
752: exit(1);
753: break;
1.1 downsj 754:
1.20 deraadt 755: case CMD_user:
756: new_message(MT_standout,
757: "Username to show: ");
758: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
759: if (tempbuf2[0] == '+' &&
760: tempbuf2[1] == '\0') {
1.21 ! millert 761: ps.uid = (uid_t)-1;
! 762: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 763: new_message(MT_standout,
764: " %s: unknown user", tempbuf2);
765: no_command = Yes;
1.20 deraadt 766: } else
1.21 ! millert 767: ps.uid = uid;
1.20 deraadt 768: if (putchar('\r') == EOF)
769: exit(1);
770: } else
771: clear_message();
772: break;
1.12 fgsch 773:
1.20 deraadt 774: case CMD_system:
775: ps.system = !ps.system;
776: new_message(MT_standout | MT_delayed,
777: " %sisplaying system processes.",
778: ps.system ? "D" : "Not d");
779: break;
780:
781: case CMD_order:
782: new_message(MT_standout,
783: "Order to sort: ");
784: if (readline(tempbuf2,
785: sizeof(tempbuf2), No) > 0) {
786: if ((i = string_index(tempbuf2,
787: statics.order_names)) == -1) {
788: new_message(MT_standout,
789: " %s: unrecognized sorting order",
790: tempbuf2);
791: no_command = Yes;
792: } else
1.1 downsj 793: order_index = i;
1.9 deraadt 794: if (putchar('\r') == EOF)
1.20 deraadt 795: exit(1);
796: } else
797: clear_message();
798: break;
1.1 downsj 799:
1.20 deraadt 800: default:
801: new_message(MT_standout, " BAD CASE IN SWITCH!");
802: if (putchar('\r') == EOF)
803: exit(1);
1.1 downsj 804: }
805: }
806:
1.20 deraadt 807: /* flush out stuff that may have been written */
808: fflush(stdout);
809: return 0;
1.1 downsj 810: }
811:
1.20 deraadt 812:
1.1 downsj 813: /*
814: * reset_display() - reset all the display routine pointers so that entire
815: * screen will get redrawn.
816: */
1.19 pvalchev 817: static void
818: reset_display(void)
1.1 downsj 819: {
1.20 deraadt 820: d_loadave = i_loadave;
821: d_procstates = i_procstates;
822: d_cpustates = i_cpustates;
823: d_memory = i_memory;
824: d_message = i_message;
825: d_header = i_header;
826: d_process = i_process;
1.1 downsj 827: }
828:
1.19 pvalchev 829: void
1.20 deraadt 830: leave(int signo)
1.1 downsj 831: {
1.20 deraadt 832: leaveflag = 1;
1.1 downsj 833: }
834:
1.19 pvalchev 835: void
1.20 deraadt 836: tstop(int signo)
1.1 downsj 837: {
1.20 deraadt 838: tstopflag = 1;
1.1 downsj 839: }
840:
841: #ifdef SIGWINCH
1.19 pvalchev 842: void
1.20 deraadt 843: winch(int signo)
1.1 downsj 844: {
1.20 deraadt 845: winchflag = 1;
1.1 downsj 846: }
847: #endif
848:
1.19 pvalchev 849: void
1.20 deraadt 850: onalrm(int signo)
1.1 downsj 851: {
852: }
853:
1.19 pvalchev 854: void
1.20 deraadt 855: quit(int ret)
1.1 downsj 856: {
1.20 deraadt 857: end_screen();
858: exit(ret);
1.1 downsj 859: }