![[BACK]](/icons/back.gif){kind=icon}
Return to top.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [local] / src / usr.bin / top|
Return to top.c CVS log | Up to [local] / src / usr.bin / top |
1.48 ! otto 1: /* $OpenBSD: top.c,v 1.47 2007/02/04 19:17:14 otto 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:
1.32 deraadt 31: const char copyright[] = "Copyright (c) 1984 through 1996, William LeFebvre";
1.1 downsj 32:
1.2 downsj 33: #include <sys/types.h>
1.23 millert 34: #include <sys/time.h>
35: #include <err.h>
36: #include <errno.h>
1.2 downsj 37: #include <stdio.h>
38: #include <ctype.h>
1.1 downsj 39: #include <signal.h>
1.2 downsj 40: #include <string.h>
1.28 deraadt 41: #include <poll.h>
1.2 downsj 42: #include <stdlib.h>
1.35 otto 43: #include <limits.h>
1.2 downsj 44: #include <unistd.h>
1.39 millert 45: #include <sys/stat.h>
1.1 downsj 46:
47: /* includes specific to top */
48: #include "display.h" /* interface to display package */
49: #include "screen.h" /* interface to screen package */
50: #include "top.h"
51: #include "top.local.h"
52: #include "boolean.h"
53: #include "machine.h"
54: #include "utils.h"
55:
56: /* Size of the stdio buffer given to stdout */
1.20 deraadt 57: #define BUFFERSIZE 2048
1.1 downsj 58:
59: /* The buffer that stdio will use */
1.32 deraadt 60: char stdoutbuf[BUFFERSIZE];
1.1 downsj 61:
1.32 deraadt 62: extern int overstrike;
1.1 downsj 63:
64: /* signal handling routines */
1.32 deraadt 65: static void leave(int);
66: static void onalrm(int);
67: static void tstop(int);
68: static void winch(int);
1.1 downsj 69:
1.25 deraadt 70: volatile sig_atomic_t leaveflag, tstopflag, winchflag;
1.7 deraadt 71:
1.32 deraadt 72: static void reset_display(void);
1.20 deraadt 73: int rundisplay(void);
1.1 downsj 74:
1.32 deraadt 75: static int max_topn; /* maximum displayable processes */
1.1 downsj 76:
1.32 deraadt 77: extern int (*proc_compares[])(const void *, const void *);
1.20 deraadt 78: int order_index;
1.1 downsj 79:
80: /* pointers to display routines */
1.32 deraadt 81: void (*d_loadave)(int, double *) = i_loadave;
82: void (*d_procstates)(int, int *) = i_procstates;
1.39 millert 83: void (*d_cpustates)(int64_t *) = i_cpustates;
1.32 deraadt 84: void (*d_memory)(int *) = i_memory;
85: void (*d_message)(void) = i_message;
86: void (*d_header)(char *) = i_header;
87: void (*d_process)(int, char *) = i_process;
1.20 deraadt 88:
89: int displays = 0; /* indicates unspecified */
90: char do_unames = Yes;
91: struct process_select ps;
92: char interactive = Maybe;
93: char warnings = 0;
94: double delay = Default_DELAY;
95: char *order_name = NULL;
96: int topn = Default_TOPN;
1.24 deraadt 97: int no_command = Yes;
1.35 otto 98: int old_system = No;
1.41 tedu 99: int old_threads = No;
1.40 markus 100: int show_args = No;
1.1 downsj 101:
102: #if Default_TOPN == Infinity
1.20 deraadt 103: char topn_specified = No;
1.1 downsj 104: #endif
105:
1.20 deraadt 106: /*
107: * these defines enumerate the "strchr"s of the commands in
108: * command_chars
109: */
1.1 downsj 110: #define CMD_redraw 0
111: #define CMD_update 1
112: #define CMD_quit 2
113: #define CMD_help1 3
114: #define CMD_help2 4
1.20 deraadt 115: #define CMD_OSLIMIT 4 /* terminals with OS can only handle commands */
116: #define CMD_errors 5 /* less than or equal to CMD_OSLIMIT */
1.1 downsj 117: #define CMD_number1 6
118: #define CMD_number2 7
119: #define CMD_delay 8
120: #define CMD_displays 9
121: #define CMD_kill 10
122: #define CMD_renice 11
1.32 deraadt 123: #define CMD_idletog 12
124: #define CMD_idletog2 13
1.1 downsj 125: #define CMD_user 14
1.12 fgsch 126: #define CMD_system 15
1.32 deraadt 127: #define CMD_order 16
1.35 otto 128: #define CMD_pid 17
1.40 markus 129: #define CMD_command 18
1.41 tedu 130: #define CMD_threads 19
1.45 otto 131: #define CMD_grep 20
1.47 otto 132: #define CMD_add 21
1.1 downsj 133:
1.27 deraadt 134: static void
1.20 deraadt 135: usage(void)
136: {
1.22 deraadt 137: extern char *__progname;
138:
1.20 deraadt 139: fprintf(stderr,
1.45 otto 140: "usage: %s [-bCIinqSTu] [-d count] [-g command] [-o field] [-p pid] [-s time]\n\t[-U username] [number]\n",
1.22 deraadt 141: __progname);
1.20 deraadt 142: }
143:
1.27 deraadt 144: static void
1.20 deraadt 145: parseargs(int ac, char **av)
146: {
147: char *endp;
148: int i;
149:
1.45 otto 150: while ((i = getopt(ac, av, "STICbinqus:d:p:U:o:g:")) != -1) {
1.20 deraadt 151: switch (i) {
1.44 otto 152: case 'C':
153: show_args = Yes;
154: break;
155:
1.20 deraadt 156: case 'u': /* toggle uid/username display */
157: do_unames = !do_unames;
158: break;
159:
160: case 'U': /* display only username's processes */
1.21 millert 161: if ((ps.uid = userid(optarg)) == (uid_t)-1) {
1.20 deraadt 162: fprintf(stderr, "%s: unknown user\n", optarg);
163: exit(1);
164: }
165: break;
1.1 downsj 166:
1.35 otto 167: case 'p': { /* display only process id */
168: unsigned long long num;
169: const char *errstr;
170:
171: num = strtonum(optarg, 0, INT_MAX, &errstr);
172: if (errstr != NULL || !find_pid(num)) {
173: fprintf(stderr, "%s: unknown pid\n", optarg);
174: exit(1);
175: }
176: ps.pid = (pid_t)num;
177: ps.system = Yes;
178: break;
179: }
180:
1.20 deraadt 181: case 'S': /* show system processes */
1.35 otto 182: ps.system = Yes;
183: old_system = Yes;
1.20 deraadt 184: break;
185:
1.41 tedu 186: case 'T': /* show threads */
187: ps.threads = Yes;
188: old_threads = Yes;
189: break;
190:
1.20 deraadt 191: case 'I': /* show idle processes */
192: ps.idle = !ps.idle;
193: break;
194:
195: case 'i': /* go interactive regardless */
196: interactive = Yes;
197: break;
198:
199: case 'n': /* batch, or non-interactive */
200: case 'b':
201: interactive = No;
202: break;
203:
204: case 'd': /* number of displays to show */
205: if ((i = atoiwi(optarg)) != Invalid && i != 0) {
206: displays = i;
207: break;
1.32 deraadt 208: }
1.22 deraadt 209: warnx("warning: display count should be positive "
210: "-- option ignored");
1.20 deraadt 211: warnings++;
212: break;
213:
214: case 's':
215: delay = strtod(optarg, &endp);
216:
217: if (delay > 0 && delay <= 1000000 && *endp == '\0')
218: break;
219:
1.22 deraadt 220: warnx("warning: delay should be a non-negative number"
221: " -- using default");
1.20 deraadt 222: delay = Default_DELAY;
223: warnings++;
224: break;
225:
226: case 'q': /* be quick about it */
227: /* only allow this if user is really root */
228: if (getuid() == 0) {
229: /* be very un-nice! */
230: (void) nice(-20);
231: break;
232: }
1.22 deraadt 233: warnx("warning: `-q' option can only be used by root");
1.20 deraadt 234: warnings++;
235: break;
236:
237: case 'o': /* select sort order */
238: order_name = optarg;
239: break;
240:
1.45 otto 241: case 'g': /* grep command name */
242: ps.command = strdup(optarg);
243: break;
244:
1.20 deraadt 245: default:
246: usage();
247: exit(1);
1.1 downsj 248: }
1.20 deraadt 249: }
1.1 downsj 250:
1.20 deraadt 251: /* get count of top processes to display (if any) */
252: if (optind < ac) {
253: if ((topn = atoiwi(av[optind])) == Invalid) {
1.22 deraadt 254: warnx("warning: process display count should "
255: "be non-negative -- using default");
1.20 deraadt 256: warnings++;
1.46 otto 257: topn = Infinity;
1.1 downsj 258: }
1.20 deraadt 259: #if Default_TOPN == Infinity
1.1 downsj 260: else
1.20 deraadt 261: topn_specified = Yes;
262: #endif
263: }
264: }
1.1 downsj 265:
1.20 deraadt 266: struct system_info system_info;
267: struct statics statics;
1.1 downsj 268:
1.20 deraadt 269: int
270: main(int argc, char *argv[])
271: {
272: char *uname_field = "USERNAME", *header_text, *env_top;
1.27 deraadt 273: char *(*get_userid)(uid_t) = username, **preset_argv, **av;
1.20 deraadt 274: int preset_argc = 0, ac, active_procs, i;
275: sigset_t mask, oldmask;
276: time_t curr_time;
277: caddr_t processes;
1.1 downsj 278:
1.20 deraadt 279: /* set the buffer for stdout */
280: #ifdef DEBUG
281: setbuffer(stdout, NULL, 0);
1.1 downsj 282: #else
1.20 deraadt 283: setbuffer(stdout, stdoutbuf, sizeof stdoutbuf);
1.1 downsj 284: #endif
285:
1.20 deraadt 286: /* initialize some selection options */
287: ps.idle = Yes;
288: ps.system = No;
1.21 millert 289: ps.uid = (uid_t)-1;
1.35 otto 290: ps.pid = (pid_t)-1;
1.20 deraadt 291: ps.command = NULL;
292:
293: /* get preset options from the environment */
294: if ((env_top = getenv("TOP")) != NULL) {
295: av = preset_argv = argparse(env_top, &preset_argc);
296: ac = preset_argc;
297:
298: /*
299: * set the dummy argument to an explanatory message, in case
300: * getopt encounters a bad argument
301: */
302: preset_argv[0] = "while processing environment";
303: }
304: /* process options */
305: do {
306: /*
307: * if we're done doing the presets, then process the real
308: * arguments
309: */
310: if (preset_argc == 0) {
311: ac = argc;
312: av = argv;
313: optind = 1;
314: }
315: parseargs(ac, av);
316: i = preset_argc;
317: preset_argc = 0;
318: } while (i != 0);
319:
320: /* set constants for username/uid display correctly */
321: if (!do_unames) {
322: uname_field = " UID ";
1.26 millert 323: get_userid = format_uid;
1.20 deraadt 324: }
325: /* initialize the kernel memory interface */
326: if (machine_init(&statics) == -1)
1.1 downsj 327: exit(1);
1.20 deraadt 328:
329: /* determine sorting order index, if necessary */
330: if (order_name != NULL) {
331: if ((order_index = string_index(order_name,
332: statics.order_names)) == -1) {
333: char **pp;
334:
1.22 deraadt 335: warnx("'%s' is not a recognized sorting order",
336: order_name);
1.20 deraadt 337: fprintf(stderr, "\tTry one of these:");
338: pp = statics.order_names;
339: while (*pp != NULL)
340: fprintf(stderr, " %s", *pp++);
341: fputc('\n', stderr);
342: exit(1);
343: }
1.1 downsj 344: }
345:
1.20 deraadt 346: /* initialize termcap */
347: init_termcap(interactive);
348:
349: /* get the string to use for the process area header */
350: header_text = format_header(uname_field);
351:
352: /* initialize display interface */
353: if ((max_topn = display_init(&statics)) == -1) {
1.22 deraadt 354: warnx("can't allocate sufficient memory");
1.20 deraadt 355: exit(4);
356: }
357: /* print warning if user requested more processes than we can display */
358: if (topn > max_topn) {
1.22 deraadt 359: warnx("warning: this terminal can only display %d processes",
360: max_topn);
1.1 downsj 361: warnings++;
1.20 deraadt 362: }
363: /* adjust for topn == Infinity */
364: if (topn == Infinity) {
365: /*
366: * For smart terminals, infinity really means everything that can
367: * be displayed, or Largest.
368: * On dumb terminals, infinity means every process in the system!
369: * We only really want to do that if it was explicitly specified.
370: * This is always the case when "Default_TOPN != Infinity". But if
371: * topn wasn't explicitly specified and we are on a dumb terminal
372: * and the default is Infinity, then (and only then) we use
373: * "Nominal_TOPN" instead.
374: */
1.1 downsj 375: #if Default_TOPN == Infinity
1.20 deraadt 376: topn = smart_terminal ? Largest :
377: (topn_specified ? Largest : Nominal_TOPN);
378: #else
379: topn = Largest;
1.1 downsj 380: #endif
381: }
1.20 deraadt 382: /* set header display accordingly */
383: display_header(topn > 0);
1.1 downsj 384:
1.20 deraadt 385: /* determine interactive state */
386: if (interactive == Maybe)
387: interactive = smart_terminal;
1.1 downsj 388:
1.20 deraadt 389: /* if # of displays not specified, fill it in */
390: if (displays == 0)
391: displays = smart_terminal ? Infinity : 1;
1.1 downsj 392:
393: /*
1.20 deraadt 394: * block interrupt signals while setting up the screen and the
395: * handlers
1.1 downsj 396: */
1.20 deraadt 397: sigemptyset(&mask);
398: sigaddset(&mask, SIGINT);
399: sigaddset(&mask, SIGQUIT);
400: sigaddset(&mask, SIGTSTP);
401: sigprocmask(SIG_BLOCK, &mask, &oldmask);
402: init_screen();
403: (void) signal(SIGINT, leave);
1.30 deraadt 404: siginterrupt(SIGINT, 1);
1.20 deraadt 405: (void) signal(SIGQUIT, leave);
406: (void) signal(SIGTSTP, tstop);
407: (void) signal(SIGWINCH, winch);
408: sigprocmask(SIG_SETMASK, &oldmask, NULL);
409: if (warnings) {
410: fputs("....", stderr);
411: fflush(stderr); /* why must I do this? */
1.32 deraadt 412: sleep((unsigned)(3 * warnings));
1.20 deraadt 413: fputc('\n', stderr);
414: }
1.7 deraadt 415: restart:
1.1 downsj 416:
1.20 deraadt 417: /*
418: * main loop -- repeat while display count is positive or while it
419: * indicates infinity (by being -1)
420: */
421: while ((displays == -1) || (displays-- > 0)) {
422: /* get the current stats */
423: get_system_info(&system_info);
424:
425: /* get the current set of processes */
426: processes = get_process_info(&system_info, &ps,
427: proc_compares[order_index]);
428:
429: /* display the load averages */
430: (*d_loadave)(system_info.last_pid, system_info.load_avg);
431:
432: /* display the current time */
433: /* this method of getting the time SHOULD be fairly portable */
434: time(&curr_time);
435: i_timeofday(&curr_time);
436:
437: /* display process state breakdown */
438: (*d_procstates)(system_info.p_total, system_info.procstates);
439:
440: /* display the cpu state percentage breakdown */
1.43 otto 441: (*d_cpustates)(system_info.cpustates);
1.1 downsj 442:
1.20 deraadt 443: /* display memory stats */
1.32 deraadt 444: (*d_memory)(system_info.memory);
1.1 downsj 445:
1.20 deraadt 446: /* handle message area */
1.32 deraadt 447: (*d_message)();
1.1 downsj 448:
1.20 deraadt 449: /* update the header area */
1.32 deraadt 450: (*d_header)(header_text);
1.20 deraadt 451:
452: if (topn > 0) {
453: /* determine number of processes to actually display */
454: /*
455: * this number will be the smallest of: active
456: * processes, number user requested, number current
457: * screen accommodates
458: */
459: active_procs = system_info.p_active;
460: if (active_procs > topn)
461: active_procs = topn;
462: if (active_procs > max_topn)
463: active_procs = max_topn;
464: /* now show the top "n" processes. */
465: for (i = 0; i < active_procs; i++)
466: (*d_process)(i, format_next_process(processes,
467: get_userid));
468: } else
469: i = 0;
470:
471: /* do end-screen processing */
472: u_endscreen(i);
473:
474: /* now, flush the output buffer */
475: fflush(stdout);
476:
477: /* only do the rest if we have more displays to show */
478: if (displays) {
479: /* switch out for new display on smart terminals */
480: if (smart_terminal) {
481: if (overstrike) {
482: reset_display();
483: } else {
484: d_loadave = u_loadave;
485: d_procstates = u_procstates;
486: d_cpustates = u_cpustates;
487: d_memory = u_memory;
488: d_message = u_message;
489: d_header = u_header;
490: d_process = u_process;
491: }
492: }
493: no_command = Yes;
494: if (!interactive) {
495: /* set up alarm */
496: (void) signal(SIGALRM, onalrm);
497: (void) alarm((unsigned) delay);
498:
499: /* wait for the rest of it .... */
500: pause();
1.42 otto 501: if (leaveflag)
502: exit(0);
503: if (tstopflag) {
504: (void) signal(SIGTSTP, SIG_DFL);
505: (void) kill(0, SIGTSTP);
506: /* reset the signal handler */
507: (void) signal(SIGTSTP, tstop);
508: tstopflag = 0;
509: }
1.20 deraadt 510: } else {
511: while (no_command)
512: if (rundisplay())
513: goto restart;
514: }
515: }
516: }
1.1 downsj 517:
1.20 deraadt 518: quit(0);
519: /* NOTREACHED */
520: return (0);
521: }
1.7 deraadt 522:
1.20 deraadt 523: int
524: rundisplay(void)
525: {
526: static char tempbuf1[50], tempbuf2[50];
527: sigset_t mask;
528: char ch, *iptr;
529: int change, i;
1.28 deraadt 530: struct pollfd pfd[1];
1.21 millert 531: uid_t uid;
1.47 otto 532: static char command_chars[] = "\f qh?en#sdkriIuSopCTg+";
1.7 deraadt 533:
1.20 deraadt 534: /*
535: * assume valid command unless told
536: * otherwise
537: */
538: no_command = No;
1.7 deraadt 539:
1.20 deraadt 540: /*
541: * set up arguments for select with
542: * timeout
543: */
1.28 deraadt 544: pfd[0].fd = STDIN_FILENO;
545: pfd[0].events = POLLIN;
1.20 deraadt 546:
1.42 otto 547: if (leaveflag)
548: quit(0);
1.20 deraadt 549: if (tstopflag) {
550: /* move to the lower left */
551: end_screen();
552: fflush(stdout);
553:
554: /*
555: * default the signal handler
556: * action
557: */
558: (void) signal(SIGTSTP, SIG_DFL);
559:
560: /*
561: * unblock the signal and
562: * send ourselves one
563: */
564: sigemptyset(&mask);
565: sigaddset(&mask, SIGTSTP);
566: sigprocmask(SIG_UNBLOCK, &mask, NULL);
567: (void) kill(0, SIGTSTP);
568:
569: /* reset the signal handler */
570: (void) signal(SIGTSTP, tstop);
571:
572: /* reinit screen */
573: reinit_screen();
574: reset_display();
575: tstopflag = 0;
576: return 1;
577: }
578: if (winchflag) {
579: /*
580: * reascertain the screen
581: * dimensions
582: */
583: get_screensize();
584:
585: /* tell display to resize */
586: max_topn = display_resize();
587:
588: /* reset the signal handler */
589: (void) signal(SIGWINCH, winch);
590:
591: reset_display();
592: winchflag = 0;
593: return 1;
594: }
595: /*
596: * wait for either input or the end
597: * of the delay period
598: */
1.33 deraadt 599: if (poll(pfd, 1, (int)(delay * 1000)) > 0 &&
1.31 millert 600: !(pfd[0].revents & (POLLERR|POLLHUP|POLLNVAL))) {
1.20 deraadt 601: char *errmsg;
1.30 deraadt 602: ssize_t len;
1.20 deraadt 603: int newval;
604:
605: clear_message();
606:
607: /*
608: * now read it and convert to
609: * command strchr
610: */
1.30 deraadt 611: while (1) {
1.36 deraadt 612: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 613: if (len == -1 && errno == EINTR)
614: continue;
615: if (len == 0)
616: exit(1);
617: break;
618: }
1.20 deraadt 619: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 620: /* illegal command */
621: new_message(MT_standout, " Command not understood");
1.9 deraadt 622: if (putchar('\r') == EOF)
1.20 deraadt 623: exit(1);
1.1 downsj 624: no_command = Yes;
1.20 deraadt 625: fflush(stdout);
626: return (0);
627: }
628:
629: change = iptr - command_chars;
630: if (overstrike && change > CMD_OSLIMIT) {
631: /* error */
632: new_message(MT_standout,
1.1 downsj 633: " Command cannot be handled by this terminal");
1.20 deraadt 634: if (putchar('\r') == EOF)
635: exit(1);
636: no_command = Yes;
637: fflush(stdout);
638: return (0);
639: }
640:
641: switch (change) {
642: case CMD_redraw: /* redraw screen */
643: reset_display();
644: break;
645:
646: case CMD_update: /* merely update display */
647: /*
648: * is the load average high?
649: */
650: if (system_info.load_avg[0] > LoadMax) {
651: /* yes, go home for visual feedback */
652: go_home();
653: fflush(stdout);
1.1 downsj 654: }
1.20 deraadt 655: break;
656:
657: case CMD_quit: /* quit */
658: quit(0);
659: break;
660:
661: case CMD_help1: /* help */
662: case CMD_help2:
663: reset_display();
664: clear();
665: show_help();
666: standout("Hit any key to continue: ");
667: fflush(stdout);
1.30 deraadt 668: while (1) {
1.36 deraadt 669: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 670: if (len == -1 && errno == EINTR)
671: continue;
672: if (len == 0)
673: exit(1);
674: break;
675: }
1.20 deraadt 676: break;
677:
678: case CMD_errors: /* show errors */
679: if (error_count() == 0) {
680: new_message(MT_standout,
681: " Currently no errors to report.");
682: if (putchar('\r') == EOF)
683: exit(1);
684: no_command = Yes;
685: } else {
1.1 downsj 686: reset_display();
687: clear();
1.20 deraadt 688: show_errors();
1.1 downsj 689: standout("Hit any key to continue: ");
690: fflush(stdout);
1.30 deraadt 691: while (1) {
1.36 deraadt 692: len = read(STDIN_FILENO, &ch, 1);
1.30 deraadt 693: if (len == -1 && errno == EINTR)
694: continue;
695: if (len == 0)
696: exit(1);
697: break;
698: }
1.20 deraadt 699: }
700: break;
701:
702: case CMD_number1: /* new number */
703: case CMD_number2:
704: new_message(MT_standout,
705: "Number of processes to show: ");
706: newval = readline(tempbuf1, 8, Yes);
707: if (newval > -1) {
708: if (newval > max_topn) {
1.1 downsj 709: new_message(MT_standout | MT_delayed,
1.20 deraadt 710: " This terminal can only "
711: "display %d processes.",
712: max_topn);
1.9 deraadt 713: if (putchar('\r') == EOF)
1.20 deraadt 714: exit(1);
715: }
716: if (newval == 0)
1.1 downsj 717: display_header(No);
1.20 deraadt 718: else if (newval > topn && topn == 0) {
1.1 downsj 719: /* redraw the header */
720: display_header(Yes);
721: d_header = i_header;
722: }
1.20 deraadt 723: topn = newval;
724: }
725: break;
726:
727: case CMD_delay: /* new seconds delay */
728: new_message(MT_standout, "Seconds to delay: ");
729: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
730: char *endp;
731: double newdelay = strtod(tempbuf2, &endp);
732:
733: if (newdelay >= 0 && newdelay < 1000000 &&
1.48 ! otto 734: *endp == '\0') {
1.16 hugh 735: delay = newdelay;
1.48 ! otto 736: } else {
! 737: new_message(MT_standout,
! 738: "Delay should be a non-negative number");
! 739: if (putchar('\r') == EOF)
! 740: exit(1);
! 741: no_command = Yes;
! 742: }
! 743:
! 744: } else
! 745: clear_message();
1.20 deraadt 746: break;
747:
748: case CMD_displays: /* change display count */
749: new_message(MT_standout,
750: "Displays to show (currently %s): ",
751: displays == -1 ? "infinite" :
752: itoa(displays));
753: if ((i = readline(tempbuf1, 10, Yes)) > 0)
754: displays = i;
755: else if (i == 0)
756: quit(0);
757:
758: clear_message();
759: break;
760:
761: case CMD_kill: /* kill program */
762: new_message(0, "kill ");
763: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
764: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 765: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 766: if (putchar('\r') == EOF)
1.20 deraadt 767: exit(1);
1.1 downsj 768: no_command = Yes;
769: }
1.20 deraadt 770: } else
771: clear_message();
772: break;
773:
774: case CMD_renice: /* renice program */
775: new_message(0, "renice ");
776: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
777: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 778: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 779: if (putchar('\r') == EOF)
1.20 deraadt 780: exit(1);
1.1 downsj 781: no_command = Yes;
782: }
1.20 deraadt 783: } else
784: clear_message();
785: break;
1.1 downsj 786:
1.20 deraadt 787: case CMD_idletog:
788: case CMD_idletog2:
789: ps.idle = !ps.idle;
790: new_message(MT_standout | MT_delayed,
791: " %sisplaying idle processes.",
792: ps.idle ? "D" : "Not d");
793: if (putchar('\r') == EOF)
794: exit(1);
795: break;
1.1 downsj 796:
1.20 deraadt 797: case CMD_user:
798: new_message(MT_standout,
799: "Username to show: ");
800: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
801: if (tempbuf2[0] == '+' &&
802: tempbuf2[1] == '\0') {
1.21 millert 803: ps.uid = (uid_t)-1;
804: } else if ((uid = userid(tempbuf2)) == (uid_t)-1) {
1.1 downsj 805: new_message(MT_standout,
806: " %s: unknown user", tempbuf2);
807: no_command = Yes;
1.20 deraadt 808: } else
1.21 millert 809: ps.uid = uid;
1.20 deraadt 810: if (putchar('\r') == EOF)
811: exit(1);
812: } else
813: clear_message();
814: break;
1.12 fgsch 815:
1.20 deraadt 816: case CMD_system:
817: ps.system = !ps.system;
1.35 otto 818: old_system = ps.system;
1.20 deraadt 819: new_message(MT_standout | MT_delayed,
820: " %sisplaying system processes.",
821: ps.system ? "D" : "Not d");
822: break;
823:
824: case CMD_order:
825: new_message(MT_standout,
826: "Order to sort: ");
827: if (readline(tempbuf2,
828: sizeof(tempbuf2), No) > 0) {
829: if ((i = string_index(tempbuf2,
830: statics.order_names)) == -1) {
831: new_message(MT_standout,
832: " %s: unrecognized sorting order",
833: tempbuf2);
834: no_command = Yes;
835: } else
1.1 downsj 836: order_index = i;
1.35 otto 837: if (putchar('\r') == EOF)
838: exit(1);
839: } else
840: clear_message();
841: break;
842:
843: case CMD_pid:
1.37 jaredy 844: new_message(MT_standout, "Process ID to show: ");
1.35 otto 845: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
846: if (tempbuf2[0] == '+' &&
847: tempbuf2[1] == '\0') {
848: ps.pid = (pid_t)-1;
849: ps.system = old_system;
850: } else {
851: unsigned long long num;
852: const char *errstr;
853:
854: num = strtonum(tempbuf2, 0, INT_MAX,
855: &errstr);
856: if (errstr != NULL || !find_pid(num)) {
857: new_message(MT_standout,
858: " %s: unknown pid",
859: tempbuf2);
860: no_command = Yes;
861: } else {
862: if (ps.system == No)
863: old_system = No;
864: ps.pid = (pid_t)num;
865: ps.system = Yes;
866: }
867: }
1.9 deraadt 868: if (putchar('\r') == EOF)
1.20 deraadt 869: exit(1);
870: } else
871: clear_message();
1.40 markus 872: break;
873:
874: case CMD_command:
875: show_args = (show_args == No) ? Yes : No;
1.41 tedu 876: break;
877:
878: case CMD_threads:
879: ps.threads = !ps.threads;
880: old_threads = ps.threads;
881: new_message(MT_standout | MT_delayed,
882: " %sisplaying threads.",
883: ps.threads ? "D" : "Not d");
1.45 otto 884: break;
885:
886: case CMD_grep:
887: new_message(MT_standout,
888: "Grep command name: ");
889: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
890: free(ps.command);
891: if (tempbuf2[0] == '+' &&
892: tempbuf2[1] == '\0')
893: ps.command = NULL;
894: else
895: ps.command = strdup(tempbuf2);
896: if (putchar('\r') == EOF)
897: exit(1);
898: } else
899: clear_message();
1.20 deraadt 900: break;
1.1 downsj 901:
1.47 otto 902: case CMD_add:
903: ps.uid = (uid_t)-1; /* uid */
904: ps.pid = (pid_t)-1; /* pid */
905: ps.system = old_system;
906: ps.command = NULL; /* grep */
907: break;
908:
1.20 deraadt 909: default:
910: new_message(MT_standout, " BAD CASE IN SWITCH!");
911: if (putchar('\r') == EOF)
912: exit(1);
1.1 downsj 913: }
914: }
915:
1.20 deraadt 916: /* flush out stuff that may have been written */
917: fflush(stdout);
918: return 0;
1.1 downsj 919: }
920:
1.20 deraadt 921:
1.1 downsj 922: /*
923: * reset_display() - reset all the display routine pointers so that entire
924: * screen will get redrawn.
925: */
1.19 pvalchev 926: static void
927: reset_display(void)
1.1 downsj 928: {
1.20 deraadt 929: d_loadave = i_loadave;
930: d_procstates = i_procstates;
931: d_cpustates = i_cpustates;
932: d_memory = i_memory;
933: d_message = i_message;
934: d_header = i_header;
935: d_process = i_process;
1.1 downsj 936: }
937:
1.34 deraadt 938: /* ARGSUSED */
1.19 pvalchev 939: void
1.20 deraadt 940: leave(int signo)
1.1 downsj 941: {
1.20 deraadt 942: leaveflag = 1;
1.1 downsj 943: }
944:
1.34 deraadt 945: /* ARGSUSED */
1.19 pvalchev 946: void
1.20 deraadt 947: tstop(int signo)
1.1 downsj 948: {
1.20 deraadt 949: tstopflag = 1;
1.1 downsj 950: }
951:
1.34 deraadt 952: /* ARGSUSED */
1.19 pvalchev 953: void
1.20 deraadt 954: winch(int signo)
1.1 downsj 955: {
1.20 deraadt 956: winchflag = 1;
1.1 downsj 957: }
958:
1.34 deraadt 959: /* ARGSUSED */
1.19 pvalchev 960: void
1.20 deraadt 961: onalrm(int signo)
1.1 downsj 962: {
963: }
964:
1.19 pvalchev 965: void
1.20 deraadt 966: quit(int ret)
1.1 downsj 967: {
1.20 deraadt 968: end_screen();
969: exit(ret);
1.1 downsj 970: }