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1.18 ! deraadt 1: /* $OpenBSD: top.c,v 1.17 2002/06/14 21:35:00 todd 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:
1.2 downsj 119: int main(argc, argv)
1.1 downsj 120:
121: int argc;
122: char *argv[];
123:
124: {
1.14 mpech 125: int i;
126: int active_procs;
127: int change;
1.1 downsj 128:
129: struct system_info system_info;
130: struct statics statics;
131: caddr_t processes;
132:
133: static char tempbuf1[50];
134: static char tempbuf2[50];
1.10 millert 135: sigset_t mask, oldmask;
1.1 downsj 136: int topn = Default_TOPN;
1.16 hugh 137: double delay = Default_DELAY;
1.1 downsj 138: int displays = 0; /* indicates unspecified */
139: time_t curr_time;
140: char *(*get_userid)() = username;
141: char *uname_field = "USERNAME";
142: char *header_text;
143: char *env_top;
144: char **preset_argv;
145: int preset_argc = 0;
146: char **av;
147: int ac;
148: char dostates = No;
149: char do_unames = Yes;
150: char interactive = Maybe;
151: char warnings = 0;
152: #if Default_TOPN == Infinity
153: char topn_specified = No;
154: #endif
155: char ch;
156: char *iptr;
157: char no_command = 1;
158: struct timeval timeout;
159: struct process_select ps;
160: #ifdef ORDER
161: char *order_name = NULL;
162: int order_index = 0;
163: #endif
164: #ifndef FD_SET
165: /* FD_SET and friends are not present: fake it */
166: typedef int fd_set;
167: #define FD_ZERO(x) (*(x) = 0)
168: #define FD_SET(f, x) (*(x) = f)
169: #endif
170: fd_set readfds;
171:
172: #ifdef ORDER
1.12 fgsch 173: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.1 downsj 174: #else
1.12 fgsch 175: static char command_chars[] = "\f qh?en#sdkriIuS";
1.1 downsj 176: #endif
177: /* these defines enumerate the "strchr"s of the commands in command_chars */
178: #define CMD_redraw 0
179: #define CMD_update 1
180: #define CMD_quit 2
181: #define CMD_help1 3
182: #define CMD_help2 4
183: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
184: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
185: #define CMD_number1 6
186: #define CMD_number2 7
187: #define CMD_delay 8
188: #define CMD_displays 9
189: #define CMD_kill 10
190: #define CMD_renice 11
191: #define CMD_idletog 12
192: #define CMD_idletog2 13
193: #define CMD_user 14
1.12 fgsch 194: #define CMD_system 15
1.1 downsj 195: #ifdef ORDER
1.12 fgsch 196: #define CMD_order 16
1.1 downsj 197: #endif
198:
199: /* set the buffer for stdout */
200: #ifdef DEBUG
201: setbuffer(stdout, NULL, 0);
202: #else
203: setbuffer(stdout, stdoutbuf, Buffersize);
204: #endif
205:
206: /* get our name */
207: if (argc > 0)
208: {
209: if ((myname = strrchr(argv[0], '/')) == 0)
210: {
211: myname = argv[0];
212: }
213: else
214: {
215: myname++;
216: }
217: }
218:
219: /* initialize some selection options */
220: ps.idle = Yes;
221: ps.system = No;
222: ps.uid = -1;
223: ps.command = NULL;
224:
225: /* get preset options from the environment */
226: if ((env_top = getenv("TOP")) != NULL)
227: {
228: av = preset_argv = argparse(env_top, &preset_argc);
229: ac = preset_argc;
230:
231: /* set the dummy argument to an explanatory message, in case
232: getopt encounters a bad argument */
233: preset_argv[0] = "while processing environment";
234: }
235:
236: /* process options */
237: do {
238: /* if we're done doing the presets, then process the real arguments */
239: if (preset_argc == 0)
240: {
241: ac = argc;
242: av = argv;
243:
244: /* this should keep getopt happy... */
245: optind = 1;
246: }
247:
1.3 aaron 248: while ((i = getopt(ac, av, "SIbinqus:d:U:o:")) != -1)
1.1 downsj 249: {
250: switch(i)
251: {
252: case 'u': /* toggle uid/username display */
253: do_unames = !do_unames;
254: break;
255:
256: case 'U': /* display only username's processes */
257: if ((ps.uid = userid(optarg)) == -1)
258: {
259: fprintf(stderr, "%s: unknown user\n", optarg);
260: exit(1);
261: }
262: break;
263:
264: case 'S': /* show system processes */
265: ps.system = !ps.system;
266: break;
267:
268: case 'I': /* show idle processes */
269: ps.idle = !ps.idle;
270: break;
271:
272: case 'i': /* go interactive regardless */
273: interactive = Yes;
274: break;
275:
276: case 'n': /* batch, or non-interactive */
277: case 'b':
278: interactive = No;
279: break;
280:
281: case 'd': /* number of displays to show */
282: if ((i = atoiwi(optarg)) == Invalid || i == 0)
283: {
284: fprintf(stderr,
285: "%s: warning: display count should be positive -- option ignored\n",
286: myname);
287: warnings++;
288: }
289: else
290: {
291: displays = i;
292: }
293: break;
294:
295: case 's':
296: {
1.6 deraadt 297: char *endp;
298:
1.16 hugh 299: delay = strtod(optarg, &endp);
300:
301: if (delay < 0 || delay >= 1000000 || *endp != '\0')
1.6 deraadt 302: {
1.1 downsj 303: fprintf(stderr,
1.16 hugh 304: "%s: warning: delay should be a non-negative number -- using default\n",
1.1 downsj 305: myname);
306: delay = Default_DELAY;
307: warnings++;
1.6 deraadt 308: }
1.1 downsj 309: }
310: break;
311:
312: case 'q': /* be quick about it */
313: /* only allow this if user is really root */
314: if (getuid() == 0)
315: {
316: /* be very un-nice! */
317: (void) nice(-20);
318: }
319: else
320: {
321: fprintf(stderr,
322: "%s: warning: `-q' option can only be used by root\n",
323: myname);
324: warnings++;
325: }
326: break;
327:
328: case 'o': /* select sort order */
329: #ifdef ORDER
330: order_name = optarg;
331: #else
332: fprintf(stderr,
333: "%s: this platform does not support arbitrary ordering. Sorry.\n",
334: myname);
335: warnings++;
336: #endif
337: break;
338:
339: default:
340: fprintf(stderr, "\
341: Top version %s\n\
342: Usage: %s [-ISbinqu] [-d x] [-s x] [-o field] [-U username] [number]\n",
343: version_string(), myname);
344: exit(1);
345: }
346: }
347:
348: /* get count of top processes to display (if any) */
349: if (optind < ac)
350: {
351: if ((topn = atoiwi(av[optind])) == Invalid)
352: {
353: fprintf(stderr,
354: "%s: warning: process display count should be non-negative -- using default\n",
355: myname);
356: warnings++;
357: }
358: #if Default_TOPN == Infinity
359: else
360: {
361: topn_specified = Yes;
362: }
363: #endif
364: }
365:
366: /* tricky: remember old value of preset_argc & set preset_argc = 0 */
367: i = preset_argc;
368: preset_argc = 0;
369:
370: /* repeat only if we really did the preset arguments */
371: } while (i != 0);
372:
373: /* set constants for username/uid display correctly */
374: if (!do_unames)
375: {
376: uname_field = " UID ";
377: get_userid = itoa7;
378: }
379:
380: /* initialize the kernel memory interface */
381: if (machine_init(&statics) == -1)
382: {
383: exit(1);
384: }
385:
386: #ifdef ORDER
387: /* determine sorting order index, if necessary */
388: if (order_name != NULL)
389: {
390: if ((order_index = string_index(order_name, statics.order_names)) == -1)
391: {
392: char **pp;
393:
394: fprintf(stderr, "%s: '%s' is not a recognized sorting order.\n",
395: myname, order_name);
396: fprintf(stderr, "\tTry one of these:");
397: pp = statics.order_names;
398: while (*pp != NULL)
399: {
400: fprintf(stderr, " %s", *pp++);
401: }
402: fputc('\n', stderr);
403: exit(1);
404: }
405: }
406: #endif
407:
408: #ifdef no_initialization_needed
409: /* initialize the hashing stuff */
410: if (do_unames)
411: {
412: init_hash();
413: }
414: #endif
415:
416: /* initialize termcap */
417: init_termcap(interactive);
418:
419: /* get the string to use for the process area header */
420: header_text = format_header(uname_field);
421:
422: /* initialize display interface */
423: if ((max_topn = display_init(&statics)) == -1)
424: {
425: fprintf(stderr, "%s: can't allocate sufficient memory\n", myname);
426: exit(4);
427: }
428:
429: /* print warning if user requested more processes than we can display */
430: if (topn > max_topn)
431: {
432: fprintf(stderr,
433: "%s: warning: this terminal can only display %d processes.\n",
434: myname, max_topn);
435: warnings++;
436: }
437:
438: /* adjust for topn == Infinity */
439: if (topn == Infinity)
440: {
441: /*
442: * For smart terminals, infinity really means everything that can
443: * be displayed, or Largest.
444: * On dumb terminals, infinity means every process in the system!
445: * We only really want to do that if it was explicitly specified.
446: * This is always the case when "Default_TOPN != Infinity". But if
447: * topn wasn't explicitly specified and we are on a dumb terminal
448: * and the default is Infinity, then (and only then) we use
449: * "Nominal_TOPN" instead.
450: */
451: #if Default_TOPN == Infinity
452: topn = smart_terminal ? Largest :
453: (topn_specified ? Largest : Nominal_TOPN);
454: #else
455: topn = Largest;
456: #endif
457: }
458:
459: /* set header display accordingly */
460: display_header(topn > 0);
461:
462: /* determine interactive state */
463: if (interactive == Maybe)
464: {
465: interactive = smart_terminal;
466: }
467:
468: /* if # of displays not specified, fill it in */
469: if (displays == 0)
470: {
471: displays = smart_terminal ? Infinity : 1;
472: }
473:
1.10 millert 474: /* block interrupt signals while setting up the screen and the handlers */
475: sigemptyset(&mask);
476: sigaddset(&mask, SIGINT);
477: sigaddset(&mask, SIGQUIT);
478: sigaddset(&mask, SIGTSTP);
479: sigprocmask(SIG_BLOCK, &mask, &oldmask);
1.1 downsj 480: init_screen();
481: (void) signal(SIGINT, leave);
482: (void) signal(SIGQUIT, leave);
483: (void) signal(SIGTSTP, tstop);
484: #ifdef SIGWINCH
485: (void) signal(SIGWINCH, winch);
486: #endif
1.10 millert 487: sigprocmask(SIG_SETMASK, &oldmask, NULL);
1.1 downsj 488: if (warnings)
489: {
490: fputs("....", stderr);
491: fflush(stderr); /* why must I do this? */
492: sleep((unsigned)(3 * warnings));
493: fputc('\n', stderr);
494: }
495:
1.7 deraadt 496: restart:
1.1 downsj 497:
498: /*
499: * main loop -- repeat while display count is positive or while it
500: * indicates infinity (by being -1)
501: */
502:
503: while ((displays == -1) || (displays-- > 0))
504: {
505: /* get the current stats */
506: get_system_info(&system_info);
507:
508: /* get the current set of processes */
509: processes =
510: get_process_info(&system_info,
511: &ps,
512: #ifdef ORDER
513: proc_compares[order_index]);
514: #else
515: proc_compare);
516: #endif
517:
518: /* display the load averages */
519: (*d_loadave)(system_info.last_pid,
520: system_info.load_avg);
521:
522: /* display the current time */
523: /* this method of getting the time SHOULD be fairly portable */
524: time(&curr_time);
525: i_timeofday(&curr_time);
526:
527: /* display process state breakdown */
528: (*d_procstates)(system_info.p_total,
529: system_info.procstates);
530:
531: /* display the cpu state percentage breakdown */
532: if (dostates) /* but not the first time */
533: {
534: (*d_cpustates)(system_info.cpustates);
535: }
536: else
537: {
538: /* we'll do it next time */
539: if (smart_terminal)
540: {
541: z_cpustates();
542: }
543: else
544: {
1.9 deraadt 545: if (putchar('\n') == EOF)
546: exit(1);
1.1 downsj 547: }
548: dostates = Yes;
549: }
550:
551: /* display memory stats */
552: (*d_memory)(system_info.memory);
553:
554: /* handle message area */
555: (*d_message)();
556:
557: /* update the header area */
558: (*d_header)(header_text);
559:
560: if (topn > 0)
561: {
562: /* determine number of processes to actually display */
563: /* this number will be the smallest of: active processes,
1.17 todd 564: number user requested, number current screen accommodates */
1.1 downsj 565: active_procs = system_info.p_active;
566: if (active_procs > topn)
567: {
568: active_procs = topn;
569: }
570: if (active_procs > max_topn)
571: {
572: active_procs = max_topn;
573: }
574:
575: /* now show the top "n" processes. */
576: for (i = 0; i < active_procs; i++)
577: {
578: (*d_process)(i, format_next_process(processes, get_userid));
579: }
580: }
581: else
582: {
583: i = 0;
584: }
585:
586: /* do end-screen processing */
587: u_endscreen(i);
588:
589: /* now, flush the output buffer */
590: fflush(stdout);
591:
592: /* only do the rest if we have more displays to show */
593: if (displays)
594: {
595: /* switch out for new display on smart terminals */
596: if (smart_terminal)
597: {
598: if (overstrike)
599: {
600: reset_display();
601: }
602: else
603: {
604: d_loadave = u_loadave;
605: d_procstates = u_procstates;
606: d_cpustates = u_cpustates;
607: d_memory = u_memory;
608: d_message = u_message;
609: d_header = u_header;
610: d_process = u_process;
611: }
612: }
613:
614: no_command = Yes;
615: if (!interactive)
616: {
617: /* set up alarm */
618: (void) signal(SIGALRM, onalrm);
619: (void) alarm((unsigned)delay);
620:
621: /* wait for the rest of it .... */
622: pause();
623: }
624: else while (no_command)
625: {
626: /* assume valid command unless told otherwise */
627: no_command = No;
628:
629: /* set up arguments for select with timeout */
630: FD_ZERO(&readfds);
1.11 deraadt 631: FD_SET(STDIN_FILENO, &readfds); /* for standard input */
1.16 hugh 632: timeout.tv_sec = (long)delay;
633: timeout.tv_usec = (long)((delay - timeout.tv_sec) * 1000000);
1.1 downsj 634:
1.7 deraadt 635: if (leaveflag) {
636: end_screen();
637: exit(0);
638: }
639:
640: if (tstopflag) {
641: /* move to the lower left */
642: end_screen();
643: fflush(stdout);
644:
645: /* default the signal handler action */
646: (void) signal(SIGTSTP, SIG_DFL);
647:
648: /* unblock the signal and send ourselves one */
1.10 millert 649: sigemptyset(&mask);
650: sigaddset(&mask, SIGTSTP);
651: sigprocmask(SIG_UNBLOCK, &mask, NULL);
1.7 deraadt 652: (void) kill(0, SIGTSTP);
653:
654: /* reset the signal handler */
655: (void) signal(SIGTSTP, tstop);
656:
657: /* reinit screen */
658: reinit_screen();
659: reset_display();
660: tstopflag = 0;
661: goto restart;
662: }
663:
664: if (winchflag) {
665: /* reascertain the screen dimensions */
666: get_screensize();
667:
668: /* tell display to resize */
669: max_topn = display_resize();
670:
671: /* reset the signal handler */
672: (void) signal(SIGWINCH, winch);
673:
674: reset_display();
675: winchflag = 0;
676: goto restart;
677: }
678:
1.1 downsj 679: /* wait for either input or the end of the delay period */
1.11 deraadt 680: if (select(STDIN_FILENO + 1, &readfds, (fd_set *)NULL,
681: (fd_set *)NULL, &timeout) > 0)
1.1 downsj 682: {
683: int newval;
684: char *errmsg;
685:
686: /* something to read -- clear the message area first */
687: clear_message();
688:
689: /* now read it and convert to command strchr */
690: /* (use "change" as a temporary to hold strchr) */
691: (void) read(0, &ch, 1);
692: if ((iptr = strchr(command_chars, ch)) == NULL)
693: {
694: /* illegal command */
695: new_message(MT_standout, " Command not understood");
1.9 deraadt 696: if (putchar('\r') == EOF)
697: exit(1);
1.1 downsj 698: no_command = Yes;
699: }
700: else
701: {
702: change = iptr - command_chars;
703: if (overstrike && change > CMD_OSLIMIT)
704: {
705: /* error */
706: new_message(MT_standout,
707: " Command cannot be handled by this terminal");
1.9 deraadt 708: if (putchar('\r') == EOF)
709: exit(1);
1.1 downsj 710: no_command = Yes;
711: }
712: else switch(change)
713: {
714: case CMD_redraw: /* redraw screen */
715: reset_display();
716: break;
717:
718: case CMD_update: /* merely update display */
719: /* is the load average high? */
720: if (system_info.load_avg[0] > LoadMax)
721: {
722: /* yes, go home for visual feedback */
723: go_home();
724: fflush(stdout);
725: }
726: break;
727:
728: case CMD_quit: /* quit */
729: quit(0);
730: /*NOTREACHED*/
731: break;
732:
733: case CMD_help1: /* help */
734: case CMD_help2:
735: reset_display();
736: clear();
737: show_help();
738: standout("Hit any key to continue: ");
739: fflush(stdout);
740: (void) read(0, &ch, 1);
741: break;
742:
743: case CMD_errors: /* show errors */
744: if (error_count() == 0)
745: {
746: new_message(MT_standout,
747: " Currently no errors to report.");
1.9 deraadt 748: if (putchar('\r') == EOF)
749: exit(1);
1.1 downsj 750: no_command = Yes;
751: }
752: else
753: {
754: reset_display();
755: clear();
756: show_errors();
757: standout("Hit any key to continue: ");
758: fflush(stdout);
759: (void) read(0, &ch, 1);
760: }
761: break;
762:
763: case CMD_number1: /* new number */
764: case CMD_number2:
765: new_message(MT_standout,
766: "Number of processes to show: ");
767: newval = readline(tempbuf1, 8, Yes);
768: if (newval > -1)
769: {
770: if (newval > max_topn)
771: {
772: new_message(MT_standout | MT_delayed,
773: " This terminal can only display %d processes.",
774: max_topn);
1.9 deraadt 775: if (putchar('\r') == EOF)
776: exit(1);
1.1 downsj 777: }
778:
779: if (newval == 0)
780: {
781: /* inhibit the header */
782: display_header(No);
783: }
784: else if (newval > topn && topn == 0)
785: {
786: /* redraw the header */
787: display_header(Yes);
788: d_header = i_header;
789: }
790: topn = newval;
791: }
792: break;
793:
794: case CMD_delay: /* new seconds delay */
795: new_message(MT_standout, "Seconds to delay: ");
1.16 hugh 796: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
1.1 downsj 797: {
1.16 hugh 798: char *endp;
799: double newdelay = strtod(tempbuf2, &endp);
800: if (newdelay >= 0 && newdelay < 1000000 && *endp == '\0')
801: {
802: delay = newdelay;
803: }
1.1 downsj 804: }
805: clear_message();
806: break;
807:
808: case CMD_displays: /* change display count */
809: new_message(MT_standout,
810: "Displays to show (currently %s): ",
811: displays == -1 ? "infinite" :
812: itoa(displays));
813: if ((i = readline(tempbuf1, 10, Yes)) > 0)
814: {
815: displays = i;
816: }
817: else if (i == 0)
818: {
819: quit(0);
820: }
821: clear_message();
822: break;
823:
824: case CMD_kill: /* kill program */
825: new_message(0, "kill ");
826: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
827: {
828: if ((errmsg = kill_procs(tempbuf2)) != NULL)
829: {
1.4 millert 830: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 831: if (putchar('\r') == EOF)
832: exit(1);
1.1 downsj 833: no_command = Yes;
834: }
835: }
836: else
837: {
838: clear_message();
839: }
840: break;
841:
842: case CMD_renice: /* renice program */
843: new_message(0, "renice ");
844: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
845: {
846: if ((errmsg = renice_procs(tempbuf2)) != NULL)
847: {
1.4 millert 848: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 849: if (putchar('\r') == EOF)
850: exit(1);
1.1 downsj 851: no_command = Yes;
852: }
853: }
854: else
855: {
856: clear_message();
857: }
858: break;
859:
860: case CMD_idletog:
861: case CMD_idletog2:
862: ps.idle = !ps.idle;
863: new_message(MT_standout | MT_delayed,
864: " %sisplaying idle processes.",
865: ps.idle ? "D" : "Not d");
1.9 deraadt 866: if (putchar('\r') == EOF)
867: exit(1);
1.1 downsj 868: break;
869:
870: case CMD_user:
871: new_message(MT_standout,
872: "Username to show: ");
873: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
874: {
875: if (tempbuf2[0] == '+' &&
876: tempbuf2[1] == '\0')
877: {
878: ps.uid = -1;
879: }
880: else if ((i = userid(tempbuf2)) == -1)
881: {
882: new_message(MT_standout,
883: " %s: unknown user", tempbuf2);
884: no_command = Yes;
885: }
886: else
887: {
888: ps.uid = i;
889: }
1.9 deraadt 890: if (putchar('\r') == EOF)
891: exit(1);
1.1 downsj 892: }
893: else
894: {
895: clear_message();
896: }
897: break;
1.12 fgsch 898:
899: case CMD_system:
900: ps.system = !ps.system;
901: new_message(MT_standout | MT_delayed,
902: " %sisplaying system processes.",
903: ps.system ? "D" : "Not d");
904: break;
905:
1.1 downsj 906: #ifdef ORDER
907: case CMD_order:
908: new_message(MT_standout,
909: "Order to sort: ");
910: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0)
911: {
912: if ((i = string_index(tempbuf2, statics.order_names)) == -1)
913: {
914: new_message(MT_standout,
915: " %s: unrecognized sorting order", tempbuf2);
916: no_command = Yes;
917: }
918: else
919: {
920: order_index = i;
921: }
1.9 deraadt 922: if (putchar('\r') == EOF)
923: exit(1);
1.1 downsj 924: }
925: else
926: {
927: clear_message();
928: }
929: break;
930: #endif
931:
932: default:
933: new_message(MT_standout, " BAD CASE IN SWITCH!");
1.9 deraadt 934: if (putchar('\r') == EOF)
935: exit(1);
1.1 downsj 936: }
937: }
938:
939: /* flush out stuff that may have been written */
940: fflush(stdout);
941: }
942: }
943: }
944: }
945:
946: quit(0);
947: /*NOTREACHED*/
1.8 pvalchev 948: return(0);
1.1 downsj 949: }
950:
951: /*
952: * reset_display() - reset all the display routine pointers so that entire
953: * screen will get redrawn.
954: */
955:
1.2 downsj 956: static void reset_display()
1.1 downsj 957:
958: {
959: d_loadave = i_loadave;
960: d_procstates = i_procstates;
961: d_cpustates = i_cpustates;
962: d_memory = i_memory;
963: d_message = i_message;
964: d_header = i_header;
965: d_process = i_process;
966: }
967:
968: /*
969: * signal handlers
970: */
971:
1.2 downsj 972: void leave(unused) /* exit under normal conditions -- INT handler */
973:
974: int unused;
1.1 downsj 975:
976: {
1.7 deraadt 977: leaveflag = 1;
1.1 downsj 978: }
979:
1.2 downsj 980: void tstop(i) /* SIGTSTP handler */
1.1 downsj 981:
982: int i;
983:
984: {
1.7 deraadt 985: tstopflag = 1;
1.1 downsj 986: }
987:
988: #ifdef SIGWINCH
1.2 downsj 989: void winch(i) /* SIGWINCH handler */
1.1 downsj 990:
991: int i;
992:
993: {
1.7 deraadt 994: winchflag = 1;
1.1 downsj 995: }
996: #endif
997:
998: void quit(status) /* exit under duress */
999:
1000: int status;
1001:
1002: {
1003: end_screen();
1004: exit(status);
1005: /*NOTREACHED*/
1006: }
1007:
1.2 downsj 1008: void onalrm(unused) /* SIGALRM handler */
1009:
1010: int unused;
1.1 downsj 1011:
1012: {
1013: /* this is only used in batch mode to break out of the pause() */
1014: /* return; */
1015: }
1016: