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1.19 ! pvalchev 1: /* $OpenBSD: top.c,v 1.18 2002/07/15 17:20:36 deraadt Exp $ */
1.1 downsj 2:
1.2 downsj 3: const char copyright[] = "Copyright (c) 1984 through 1996, William LeFebvre";
1.1 downsj 4:
5: /*
6: * Top users/processes display for Unix
7: * Version 3
8: *
1.18 deraadt 9: * Copyright (c) 1984, 1989, William LeFebvre, Rice University
10: * Copyright (c) 1989, 1990, 1992, William LeFebvre, Northwestern University
1.1 downsj 11: *
1.18 deraadt 12: * Redistribution and use in source and binary forms, with or without
13: * modification, are permitted provided that the following conditions
14: * are met:
15: * 1. Redistributions of source code must retain the above copyright
16: * notice, this list of conditions and the following disclaimer.
17: * 2. Redistributions in binary form must reproduce the above copyright
18: * notice, this list of conditions and the following disclaimer in the
19: * documentation and/or other materials provided with the distribution.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24: * IN NO EVENT SHALL THE AUTHOR OR HIS EMPLOYER BE LIABLE FOR ANY DIRECT, INDIRECT,
25: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1 downsj 31: */
32:
33: /*
34: * See the file "Changes" for information on version-to-version changes.
35: */
36:
37: /*
38: * This file contains "main" and other high-level routines.
39: */
40:
41: /*
42: * The following preprocessor variables, when defined, are used to
43: * distinguish between different Unix implementations:
44: *
45: * FD_SET - macros FD_SET and FD_ZERO are used when defined
46: */
47:
1.2 downsj 48: #include <sys/types.h>
49: #include <stdio.h>
50: #include <ctype.h>
1.1 downsj 51: #include <signal.h>
52: #include <setjmp.h>
1.2 downsj 53: #include <string.h>
54: #include <stdlib.h>
55: #include <unistd.h>
1.5 deraadt 56: #include <errno.h>
1.1 downsj 57: #include <sys/time.h>
58:
59: /* includes specific to top */
60: #include "display.h" /* interface to display package */
61: #include "screen.h" /* interface to screen package */
62: #include "top.h"
63: #include "top.local.h"
64: #include "boolean.h"
65: #include "machine.h"
66: #include "utils.h"
67:
68: /* Size of the stdio buffer given to stdout */
69: #define Buffersize 2048
70:
71: /* The buffer that stdio will use */
72: char stdoutbuf[Buffersize];
73:
74: /* imported from screen.c */
75: extern int overstrike;
76:
77: /* signal handling routines */
1.15 millert 78: static void leave(int);
79: static void onalrm(int);
80: static void tstop(int);
1.1 downsj 81: #ifdef SIGWINCH
1.15 millert 82: static void winch(int);
1.1 downsj 83: #endif
84:
1.13 deraadt 85: volatile sig_atomic_t leaveflag;
86: volatile sig_atomic_t tstopflag;
87: volatile sig_atomic_t winchflag;
1.7 deraadt 88:
1.15 millert 89: static void reset_display(void);
1.1 downsj 90:
91: /* values which need to be accessed by signal handlers */
92: static int max_topn; /* maximum displayable processes */
93:
94: /* miscellaneous things */
95: char *myname = "top";
96: jmp_buf jmp_int;
97:
98: /* routines that don't return int */
99:
100: #ifdef ORDER
101: extern int (*proc_compares[])();
102: #else
103: extern int proc_compare();
104: #endif
105: time_t time();
106:
107: caddr_t get_process_info();
108:
109: /* pointers to display routines */
1.2 downsj 110: void (*d_loadave)() = i_loadave;
111: void (*d_procstates)() = i_procstates;
112: void (*d_cpustates)() = i_cpustates;
113: void (*d_memory)() = i_memory;
114: void (*d_message)() = i_message;
115: void (*d_header)() = i_header;
116: void (*d_process)() = i_process;
1.1 downsj 117:
118:
1.19 ! pvalchev 119: int
! 120: main(int argc, char *argv[])
1.1 downsj 121: {
1.14 mpech 122: int i;
123: int active_procs;
124: int change;
1.1 downsj 125:
126: struct system_info system_info;
127: struct statics statics;
128: caddr_t processes;
129:
130: static char tempbuf1[50];
131: static char tempbuf2[50];
1.10 millert 132: sigset_t mask, oldmask;
1.1 downsj 133: int topn = Default_TOPN;
1.16 hugh 134: double delay = Default_DELAY;
1.1 downsj 135: int displays = 0; /* indicates unspecified */
136: time_t curr_time;
137: char *(*get_userid)() = username;
138: char *uname_field = "USERNAME";
139: char *header_text;
140: char *env_top;
141: char **preset_argv;
142: int preset_argc = 0;
143: char **av;
144: int ac;
145: char dostates = No;
146: char do_unames = Yes;
147: char interactive = Maybe;
148: char warnings = 0;
149: #if Default_TOPN == Infinity
150: char topn_specified = No;
151: #endif
152: char ch;
153: char *iptr;
154: char no_command = 1;
155: struct timeval timeout;
156: struct process_select ps;
157: #ifdef ORDER
158: char *order_name = NULL;
159: int order_index = 0;
160: #endif
161: #ifndef FD_SET
162: /* FD_SET and friends are not present: fake it */
163: typedef int fd_set;
164: #define FD_ZERO(x) (*(x) = 0)
165: #define FD_SET(f, x) (*(x) = f)
166: #endif
167: fd_set readfds;
168:
169: #ifdef ORDER
1.12 fgsch 170: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.1 downsj 171: #else
1.12 fgsch 172: static char command_chars[] = "\f qh?en#sdkriIuS";
1.1 downsj 173: #endif
174: /* these defines enumerate the "strchr"s of the commands in command_chars */
175: #define CMD_redraw 0
176: #define CMD_update 1
177: #define CMD_quit 2
178: #define CMD_help1 3
179: #define CMD_help2 4
180: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
181: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
182: #define CMD_number1 6
183: #define CMD_number2 7
184: #define CMD_delay 8
185: #define CMD_displays 9
186: #define CMD_kill 10
187: #define CMD_renice 11
188: #define CMD_idletog 12
189: #define CMD_idletog2 13
190: #define CMD_user 14
1.12 fgsch 191: #define CMD_system 15
1.1 downsj 192: #ifdef ORDER
1.12 fgsch 193: #define CMD_order 16
1.1 downsj 194: #endif
195:
196: /* set the buffer for stdout */
197: #ifdef DEBUG
198: setbuffer(stdout, NULL, 0);
199: #else
200: setbuffer(stdout, stdoutbuf, Buffersize);
201: #endif
202:
203: /* get our name */
204: if (argc > 0)
205: {
206: if ((myname = strrchr(argv[0], '/')) == 0)
207: {
208: myname = argv[0];
209: }
210: else
211: {
212: myname++;
213: }
214: }
215:
216: /* initialize some selection options */
217: ps.idle = Yes;
218: ps.system = No;
219: ps.uid = -1;
220: ps.command = NULL;
221:
222: /* get preset options from the environment */
223: if ((env_top = getenv("TOP")) != NULL)
224: {
225: av = preset_argv = argparse(env_top, &preset_argc);
226: ac = preset_argc;
227:
228: /* set the dummy argument to an explanatory message, in case
229: getopt encounters a bad argument */
230: preset_argv[0] = "while processing environment";
231: }
232:
233: /* process options */
234: do {
235: /* if we're done doing the presets, then process the real arguments */
236: if (preset_argc == 0)
237: {
238: ac = argc;
239: av = argv;
240:
241: /* this should keep getopt happy... */
242: optind = 1;
243: }
244:
1.3 aaron 245: while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != -1)
1.1 downsj 246: {
247: switch(i)
248: {
249: case 'u': /* toggle uid/username display */
250: do_unames = !do_unames;
251: break;
252:
253: case 'U': /* display only username's processes */
254: if ((ps.uid = userid(optarg)) == -1)
255: {
256: fprintf(stderr, "%s: unknown user\n", optarg);
257: exit(1);
258: }
259: break;
260:
261: case 'S': /* show system processes */
262: ps.system = !ps.system;
263: break;
264:
265: case 'I': /* show idle processes */
266: ps.idle = !ps.idle;
267: break;
268:
269: case 'i': /* go interactive regardless */
270: interactive = Yes;
271: break;
272:
273: case 'n': /* batch, or non-interactive */
274: case 'b':
275: interactive = No;
276: break;
277:
278: case 'd': /* number of displays to show */
279: if ((i = atoiwi(optarg)) == Invalid || i == 0)
280: {
281: fprintf(stderr,
282: "%s: warning: display count should be positive -- option ignored\n",
283: myname);
284: warnings++;
285: }
286: else
287: {
288: displays = i;
289: }
290: break;
291:
292: case 's':
293: {
1.6 deraadt 294: char *endp;
295:
1.16 hugh 296: delay = strtod(optarg, &endp);
297:
298: if (delay < 0 || delay >= 1000000 || *endp != '\0')
1.6 deraadt 299: {
1.1 downsj 300: fprintf(stderr,
1.16 hugh 301: "%s: warning: delay should be a non-negative number -- using default\n",
1.1 downsj 302: myname);
303: delay = Default_DELAY;
304: warnings++;
1.6 deraadt 305: }
1.1 downsj 306: }
307: break;
308:
309: case 'q': /* be quick about it */
310: /* only allow this if user is really root */
311: if (getuid() == 0)
312: {
313: /* be very un-nice! */
314: (void) nice(-20);
315: }
316: else
317: {
318: fprintf(stderr,
319: "%s: warning: `-q' option can only be used by root\n",
320: myname);
321: warnings++;
322: }
323: break;
324:
325: case 'o': /* select sort order */
326: #ifdef ORDER
327: order_name = optarg;
328: #else
329: fprintf(stderr,
330: "%s: this platform does not support arbitrary ordering. Sorry.\n",
331: myname);
332: warnings++;
333: #endif
334: break;
335:
336: default:
337: fprintf(stderr, "\
338: Top version %s\n\
339: Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
340: version_string(), myname);
341: exit(1);
342: }
343: }
344:
345: /* get count of top processes to display (if any) */
346: if (optind < ac)
347: {
348: if ((topn = atoiwi(av[optind])) == Invalid)
349: {
350: fprintf(stderr,
351: "%s: warning: process display count should be non-negative -- using default\n",
352: myname);
353: warnings++;
354: }
355: #if Default_TOPN == Infinity
356: else
357: {
358: topn_specified = Yes;
359: }
360: #endif
361: }
362:
363: /* tricky: remember old value of preset_argc & set preset_argc = 0 */
364: i = preset_argc;
365: preset_argc = 0;
366:
367: /* repeat only if we really did the preset arguments */
368: } while (i != 0);
369:
370: /* set constants for username/uid display correctly */
371: if (!do_unames)
372: {
373: uname_field = " UID ";
374: get_userid = itoa7;
375: }
376:
377: /* initialize the kernel memory interface */
378: if (machine_init(&statics) == -1)
379: {
380: exit(1);
381: }
382:
383: #ifdef ORDER
384: /* determine sorting order index, if necessary */
385: if (order_name != NULL)
386: {
387: if ((order_index = string_index(order_name, statics.order_names)) == -1)
388: {
389: char **pp;
390:
391: fprintf(stderr, "%s: '%s' is not a recognized sorting order.\n",
392: myname, order_name);
393: fprintf(stderr, "\tTry one of these:");
394: pp = statics.order_names;
395: while (*pp != NULL)
396: {
397: fprintf(stderr, " %s", *pp++);
398: }
399: fputc('\n', stderr);
400: exit(1);
401: }
402: }
403: #endif
404:
405: #ifdef no_initialization_needed
406: /* initialize the hashing stuff */
407: if (do_unames)
408: {
409: init_hash();
410: }
411: #endif
412:
413: /* initialize termcap */
414: init_termcap(interactive);
415:
416: /* get the string to use for the process area header */
417: header_text = format_header(uname_field);
418:
419: /* initialize display interface */
420: if ((max_topn = display_init(&statics)) == -1)
421: {
422: fprintf(stderr, "%s: can't allocate sufficient memory\n", myname);
423: exit(4);
424: }
425:
426: /* print warning if user requested more processes than we can display */
427: if (topn > max_topn)
428: {
429: fprintf(stderr,
430: "%s: warning: this terminal can only display %d processes.\n",
431: myname, max_topn);
432: warnings++;
433: }
434:
435: /* adjust for topn == Infinity */
436: if (topn == Infinity)
437: {
438: /*
439: * For smart terminals, infinity really means everything that can
440: * be displayed, or Largest.
441: * On dumb terminals, infinity means every process in the system!
442: * We only really want to do that if it was explicitly specified.
443: * This is always the case when "Default_TOPN != Infinity". But if
444: * topn wasn't explicitly specified and we are on a dumb terminal
445: * and the default is Infinity, then (and only then) we use
446: * "Nominal_TOPN" instead.
447: */
448: #if Default_TOPN == Infinity
449: topn = smart_terminal ? Largest :
450: (topn_specified ? Largest : Nominal_TOPN);
451: #else
452: topn = Largest;
453: #endif
454: }
455:
456: /* set header display accordingly */
457: display_header(topn > 0);
458:
459: /* determine interactive state */
460: if (interactive == Maybe)
461: {
462: interactive = smart_terminal;
463: }
464:
465: /* if # of displays not specified, fill it in */
466: if (displays == 0)
467: {
468: displays = smart_terminal ? Infinity : 1;
469: }
470:
1.10 millert 471: /* block interrupt signals while setting up the screen and the handlers */
472: sigemptyset(&mask);
473: sigaddset(&mask, SIGINT);
474: sigaddset(&mask, SIGQUIT);
475: sigaddset(&mask, SIGTSTP);
476: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.1 downsj 477: init_screen();
478: (void) signal(SIGINT, leave);
479: (void) signal(SIGQUIT, leave);
480: (void) signal(SIGTSTP, tstop);
481: #ifdef SIGWINCH
482: (void) signal(SIGWINCH, winch);
483: #endif
1.10 millert 484: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.1 downsj 485: if (warnings)
486: {
487: fputs("....", stderr);
488: fflush(stderr); /* why must I do this? */
489: sleep((unsigned)(3 * warnings));
490: fputc('\n', stderr);
491: }
492:
1.7 deraadt 493: restart:
1.1 downsj 494:
495: /*
496: * main loop -- repeat while display count is positive or while it
497: * indicates infinity (by being -1)
498: */
499:
500: while ((displays == -1) || (displays-- > 0))
501: {
502: /* get the current stats */
503: get_system_info(&system_info);
504:
505: /* get the current set of processes */
506: processes =
507: get_process_info(&system_info,
508: &ps,
509: #ifdef ORDER
510: proc_compares[order_index]);
511: #else
512: proc_compare);
513: #endif
514:
515: /* display the load averages */
516: (*d_loadave)(system_info.last_pid,
517: system_info.load_avg);
518:
519: /* display the current time */
520: /* this method of getting the time SHOULD be fairly portable */
521: time(&curr_time);
522: i_timeofday(&curr_time);
523:
524: /* display process state breakdown */
525: (*d_procstates)(system_info.p_total,
526: system_info.procstates);
527:
528: /* display the cpu state percentage breakdown */
529: if (dostates) /* but not the first time */
530: {
531: (*d_cpustates)(system_info.cpustates);
532: }
533: else
534: {
535: /* we'll do it next time */
536: if (smart_terminal)
537: {
538: z_cpustates();
539: }
540: else
541: {
1.9 deraadt 542: if (putchar('\n') == EOF)
543: exit(1);
1.1 downsj 544: }
545: dostates = Yes;
546: }
547:
548: /* display memory stats */
549: (*d_memory)(system_info.memory);
550:
551: /* handle message area */
552: (*d_message)();
553:
554: /* update the header area */
555: (*d_header)(header_text);
556:
557: if (topn > 0)
558: {
559: /* determine number of processes to actually display */
560: /* this number will be the smallest of: active processes,
1.17 todd 561: number user requested, number current screen accommodates */
1.1 downsj 562: active_procs = system_info.p_active;
563: if (active_procs > topn)
564: {
565: active_procs = topn;
566: }
567: if (active_procs > max_topn)
568: {
569: active_procs = max_topn;
570: }
571:
572: /* now show the top "n" processes. */
573: for (i = 0; i < active_procs; i++)
574: {
575: (*d_process)(i, format_next_process(processes, get_userid));
576: }
577: }
578: else
579: {
580: i = 0;
581: }
582:
583: /* do end-screen processing */
584: u_endscreen(i);
585:
586: /* now, flush the output buffer */
587: fflush(stdout);
588:
589: /* only do the rest if we have more displays to show */
590: if (displays)
591: {
592: /* switch out for new display on smart terminals */
593: if (smart_terminal)
594: {
595: if (overstrike)
596: {
597: reset_display();
598: }
599: else
600: {
601: d_loadave = u_loadave;
602: d_procstates = u_procstates;
603: d_cpustates = u_cpustates;
604: d_memory = u_memory;
605: d_message = u_message;
606: d_header = u_header;
607: d_process = u_process;
608: }
609: }
610:
611: no_command = Yes;
612: if (!interactive)
613: {
614: /* set up alarm */
615: (void) signal(SIGALRM, onalrm);
616: (void) alarm((unsigned)delay);
617:
618: /* wait for the rest of it .... */
619: pause();
620: }
621: else while (no_command)
622: {
623: /* assume valid command unless told otherwise */
624: no_command = No;
625:
626: /* set up arguments for select with timeout */
627: FD_ZERO(&readfds);
1.11 deraadt 628: FD_SET(STDIN_FILENO, &readfds); /* for standard input */
1.16 hugh 629: timeout.tv_sec = (long)delay;
630: timeout.tv_usec = (long)((delay - timeout.tv_sec) * 1000000);
1.1 downsj 631:
1.7 deraadt 632: if (leaveflag) {
633: end_screen();
634: exit(0);
635: }
636:
637: if (tstopflag) {
638: /* move to the lower left */
639: end_screen();
640: fflush(stdout);
641:
642: /* default the signal handler action */
643: (void) signal(SIGTSTP, SIG_DFL);
644:
645: /* unblock the signal and send ourselves one */
1.10 millert 646: sigemptyset(&mask);
647: sigaddset(&mask, SIGTSTP);
648: sigprocmask(SIG_UNBLOCK, &mask, NULL);
1.7 deraadt 649: (void) kill(0, SIGTSTP);
650:
651: /* reset the signal handler */
652: (void) signal(SIGTSTP, tstop);
653:
654: /* reinit screen */
655: reinit_screen();
656: reset_display();
657: tstopflag = 0;
658: goto restart;
659: }
660:
661: if (winchflag) {
662: /* reascertain the screen dimensions */
663: get_screensize();
664:
665: /* tell display to resize */
666: max_topn = display_resize();
667:
668: /* reset the signal handler */
669: (void) signal(SIGWINCH, winch);
670:
671: reset_display();
672: winchflag = 0;
673: goto restart;
674: }
675:
1.1 downsj 676: /* wait for either input or the end of the delay period */
1.11 deraadt 677: if (select(STDIN_FILENO + 1, &readfds, (fd_set *)NULL,
678: (fd_set *)NULL, &timeout) > 0)
1.1 downsj 679: {
680: int newval;
681: char *errmsg;
682:
683: /* something to read -- clear the message area first */
684: clear_message();
685:
686: /* now read it and convert to command strchr */
687: /* (use "change" as a temporary to hold strchr) */
688: (void) read(0, &ch, 1);
689: if ((iptr = strchr(command_chars, ch)) == NULL)
690: {
691: /* illegal command */
692: new_message(MT_standout, " Command not understood");
1.9 deraadt 693: if (putchar('\r') == EOF)
694: exit(1);
1.1 downsj 695: no_command = Yes;
696: }
697: else
698: {
699: change = iptr - command_chars;
700: if (overstrike && change > CMD_OSLIMIT)
701: {
702: /* error */
703: new_message(MT_standout,
704: " Command cannot be handled by this terminal");
1.9 deraadt 705: if (putchar('\r') == EOF)
706: exit(1);
1.1 downsj 707: no_command = Yes;
708: }
709: else switch(change)
710: {
711: case CMD_redraw: /* redraw screen */
712: reset_display();
713: break;
714:
715: case CMD_update: /* merely update display */
716: /* is the load average high? */
717: if (system_info.load_avg[0] > LoadMax)
718: {
719: /* yes, go home for visual feedback */
720: go_home();
721: fflush(stdout);
722: }
723: break;
724:
725: case CMD_quit: /* quit */
726: quit(0);
727: /*NOTREACHED*/
728: break;
729:
730: case CMD_help1: /* help */
731: case CMD_help2:
732: reset_display();
733: clear();
734: show_help();
735: standout("Hit any key to continue: ");
736: fflush(stdout);
737: (void) read(0, &ch, 1);
738: break;
739:
740: case CMD_errors: /* show errors */
741: if (error_count() == 0)
742: {
743: new_message(MT_standout,
744: " Currently no errors to report.");
1.9 deraadt 745: if (putchar('\r') == EOF)
746: exit(1);
1.1 downsj 747: no_command = Yes;
748: }
749: else
750: {
751: reset_display();
752: clear();
753: show_errors();
754: standout("Hit any key to continue: ");
755: fflush(stdout);
756: (void) read(0, &ch, 1);
757: }
758: break;
759:
760: case CMD_number1: /* new number */
761: case CMD_number2:
762: new_message(MT_standout,
763: "Number of processes to show: ");
764: newval = readline(tempbuf1, 8, Yes);
765: if (newval > -1)
766: {
767: if (newval > max_topn)
768: {
769: new_message(MT_standout | MT_delayed,
770: " This terminal can only display %d processes.",
771: max_topn);
1.9 deraadt 772: if (putchar('\r') == EOF)
773: exit(1);
1.1 downsj 774: }
775:
776: if (newval == 0)
777: {
778: /* inhibit the header */
779: display_header(No);
780: }
781: else if (newval > topn && topn == 0)
782: {
783: /* redraw the header */
784: display_header(Yes);
785: d_header = i_header;
786: }
787: topn = newval;
788: }
789: break;
790:
791: case CMD_delay: /* new seconds delay */
792: new_message(MT_standout, "Seconds to delay: ");
1.16 hugh 793: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
1.1 downsj 794: {
1.16 hugh 795: char *endp;
796: double newdelay = strtod(tempbuf2, &endp);
797: if (newdelay >= 0 && newdelay < 1000000 && *endp == '\0')
798: {
799: delay = newdelay;
800: }
1.1 downsj 801: }
802: clear_message();
803: break;
804:
805: case CMD_displays: /* change display count */
806: new_message(MT_standout,
807: "Displays to show (currently %s): ",
808: displays == -1 ? "infinite" :
809: itoa(displays));
810: if ((i = readline(tempbuf1, 10, Yes)) > 0)
811: {
812: displays = i;
813: }
814: else if (i == 0)
815: {
816: quit(0);
817: }
818: clear_message();
819: break;
820:
821: case CMD_kill: /* kill program */
822: new_message(0, "kill ");
823: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
824: {
825: if ((errmsg = kill_procs(tempbuf2)) != NULL)
826: {
1.4 millert 827: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 828: if (putchar('\r') == EOF)
829: exit(1);
1.1 downsj 830: no_command = Yes;
831: }
832: }
833: else
834: {
835: clear_message();
836: }
837: break;
838:
839: case CMD_renice: /* renice program */
840: new_message(0, "renice ");
841: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
842: {
843: if ((errmsg = renice_procs(tempbuf2)) != NULL)
844: {
1.4 millert 845: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 846: if (putchar('\r') == EOF)
847: exit(1);
1.1 downsj 848: no_command = Yes;
849: }
850: }
851: else
852: {
853: clear_message();
854: }
855: break;
856:
857: case CMD_idletog:
858: case CMD_idletog2:
859: ps.idle = !ps.idle;
860: new_message(MT_standout | MT_delayed,
861: " %sisplaying idle processes.",
862: ps.idle ? "D" : "Not d");
1.9 deraadt 863: if (putchar('\r') == EOF)
864: exit(1);
1.1 downsj 865: break;
866:
867: case CMD_user:
868: new_message(MT_standout,
869: "Username to show: ");
870: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
871: {
872: if (tempbuf2[0] == '+' &&
873: tempbuf2[1] == '\0')
874: {
875: ps.uid = -1;
876: }
877: else if ((i = userid(tempbuf2)) == -1)
878: {
879: new_message(MT_standout,
880: " %s: unknown user", tempbuf2);
881: no_command = Yes;
882: }
883: else
884: {
885: ps.uid = i;
886: }
1.9 deraadt 887: if (putchar('\r') == EOF)
888: exit(1);
1.1 downsj 889: }
890: else
891: {
892: clear_message();
893: }
894: break;
1.12 fgsch 895:
896: case CMD_system:
897: ps.system = !ps.system;
898: new_message(MT_standout | MT_delayed,
899: " %sisplaying system processes.",
900: ps.system ? "D" : "Not d");
901: break;
902:
1.1 downsj 903: #ifdef ORDER
904: case CMD_order:
905: new_message(MT_standout,
906: "Order to sort: ");
907: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
908: {
909: if ((i = string_index(tempbuf2, statics.order_names)) == -1)
910: {
911: new_message(MT_standout,
912: " %s: unrecognized sorting order", tempbuf2);
913: no_command = Yes;
914: }
915: else
916: {
917: order_index = i;
918: }
1.9 deraadt 919: if (putchar('\r') == EOF)
920: exit(1);
1.1 downsj 921: }
922: else
923: {
924: clear_message();
925: }
926: break;
927: #endif
928:
929: default:
930: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.9 deraadt 931: if (putchar('\r') == EOF)
932: exit(1);
1.1 downsj 933: }
934: }
935:
936: /* flush out stuff that may have been written */
937: fflush(stdout);
938: }
939: }
940: }
941: }
942:
943: quit(0);
944: /*NOTREACHED*/
1.8 pvalchev 945: return(0);
1.1 downsj 946: }
947:
948: /*
949: * reset_display() - reset all the display routine pointers so that entire
950: * screen will get redrawn.
951: */
952:
1.19 ! pvalchev 953: static void
! 954: reset_display(void)
1.1 downsj 955: {
956: d_loadave = i_loadave;
957: d_procstates = i_procstates;
958: d_cpustates = i_cpustates;
959: d_memory = i_memory;
960: d_message = i_message;
961: d_header = i_header;
962: d_process = i_process;
963: }
964:
965: /*
966: * signal handlers
967: */
968:
1.19 ! pvalchev 969: void
! 970: leave(int unused) /* exit under normal conditions -- INT handler */
1.1 downsj 971: {
1.7 deraadt 972: leaveflag = 1;
1.1 downsj 973: }
974:
1.19 ! pvalchev 975: void
! 976: tstop(int i) /* SIGTSTP handler */
1.1 downsj 977: {
1.7 deraadt 978: tstopflag = 1;
1.1 downsj 979: }
980:
981: #ifdef SIGWINCH
1.19 ! pvalchev 982: void
! 983: winch(int i) /* SIGWINCH handler */
1.1 downsj 984: {
1.7 deraadt 985: winchflag = 1;
1.1 downsj 986: }
987: #endif
988:
1.19 ! pvalchev 989: void
! 990: quit(int status) /* exit under duress */
1.1 downsj 991: {
992: end_screen();
993: exit(status);
994: /*NOTREACHED*/
995: }
996:
1.19 ! pvalchev 997: void
! 998: onalrm(int unused) /* SIGALRM handler */
1.1 downsj 999: {
1000: /* this is only used in batch mode to break out of the pause() */
1001: /* return; */
1002: }
1003: