Annotation of src/usr.bin/top/top.c, Revision 1.20
1.20 ! deraadt 1: /* $OpenBSD: top.c,v 1.19 2003/06/12 22:30:23 pvalchev 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 */
! 158: if ((ps.uid = userid(optarg)) == -1) {
! 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;
! 269: ps.uid = -1;
! 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;
! 515: static char command_chars[] = "\f qh?en#sdkriIuSo";
1.7 deraadt 516:
1.20 ! deraadt 517: /*
! 518: * assume valid command unless told
! 519: * otherwise
! 520: */
! 521: no_command = No;
1.7 deraadt 522:
1.20 ! deraadt 523: /*
! 524: * set up arguments for select with
! 525: * timeout
! 526: */
! 527: FD_ZERO(&readfds);
! 528: FD_SET(STDIN_FILENO, &readfds);
! 529: timeout.tv_sec = (long) delay;
! 530: timeout.tv_usec = (long) ((delay - timeout.tv_sec) * 1000000);
! 531:
! 532: if (leaveflag) {
! 533: end_screen();
! 534: exit(0);
! 535: }
! 536: if (tstopflag) {
! 537: /* move to the lower left */
! 538: end_screen();
! 539: fflush(stdout);
! 540:
! 541: /*
! 542: * default the signal handler
! 543: * action
! 544: */
! 545: (void) signal(SIGTSTP, SIG_DFL);
! 546:
! 547: /*
! 548: * unblock the signal and
! 549: * send ourselves one
! 550: */
! 551: sigemptyset(&mask);
! 552: sigaddset(&mask, SIGTSTP);
! 553: sigprocmask(SIG_UNBLOCK, &mask, NULL);
! 554: (void) kill(0, SIGTSTP);
! 555:
! 556: /* reset the signal handler */
! 557: (void) signal(SIGTSTP, tstop);
! 558:
! 559: /* reinit screen */
! 560: reinit_screen();
! 561: reset_display();
! 562: tstopflag = 0;
! 563: return 1;
! 564: }
! 565: if (winchflag) {
! 566: /*
! 567: * reascertain the screen
! 568: * dimensions
! 569: */
! 570: get_screensize();
! 571:
! 572: /* tell display to resize */
! 573: max_topn = display_resize();
! 574:
! 575: /* reset the signal handler */
! 576: (void) signal(SIGWINCH, winch);
! 577:
! 578: reset_display();
! 579: winchflag = 0;
! 580: return 1;
! 581: }
! 582: /*
! 583: * wait for either input or the end
! 584: * of the delay period
! 585: */
! 586: if (select(STDIN_FILENO + 1, &readfds, (fd_set *) NULL,
! 587: (fd_set *) NULL, &timeout) > 0) {
! 588: char *errmsg;
! 589: int newval;
! 590:
! 591: clear_message();
! 592:
! 593: /*
! 594: * now read it and convert to
! 595: * command strchr
! 596: */
! 597: (void) read(0, &ch, 1);
! 598: if ((iptr = strchr(command_chars, ch)) == NULL) {
1.1 downsj 599: /* illegal command */
600: new_message(MT_standout, " Command not understood");
1.9 deraadt 601: if (putchar('\r') == EOF)
1.20 ! deraadt 602: exit(1);
1.1 downsj 603: no_command = Yes;
1.20 ! deraadt 604: fflush(stdout);
! 605: return (0);
! 606: }
! 607:
! 608: change = iptr - command_chars;
! 609: if (overstrike && change > CMD_OSLIMIT) {
! 610: /* error */
! 611: new_message(MT_standout,
1.1 downsj 612: " Command cannot be handled by this terminal");
1.20 ! deraadt 613: if (putchar('\r') == EOF)
! 614: exit(1);
! 615: no_command = Yes;
! 616: fflush(stdout);
! 617: return (0);
! 618: }
! 619:
! 620: switch (change) {
! 621: case CMD_redraw: /* redraw screen */
! 622: reset_display();
! 623: break;
! 624:
! 625: case CMD_update: /* merely update display */
! 626: /*
! 627: * is the load average high?
! 628: */
! 629: if (system_info.load_avg[0] > LoadMax) {
! 630: /* yes, go home for visual feedback */
! 631: go_home();
! 632: fflush(stdout);
1.1 downsj 633: }
1.20 ! deraadt 634: break;
! 635:
! 636: case CMD_quit: /* quit */
! 637: quit(0);
! 638: break;
! 639:
! 640: case CMD_help1: /* help */
! 641: case CMD_help2:
! 642: reset_display();
! 643: clear();
! 644: show_help();
! 645: standout("Hit any key to continue: ");
! 646: fflush(stdout);
! 647: (void) read(0, &ch, 1);
! 648: break;
! 649:
! 650: case CMD_errors: /* show errors */
! 651: if (error_count() == 0) {
! 652: new_message(MT_standout,
! 653: " Currently no errors to report.");
! 654: if (putchar('\r') == EOF)
! 655: exit(1);
! 656: no_command = Yes;
! 657: } else {
1.1 downsj 658: reset_display();
659: clear();
1.20 ! deraadt 660: show_errors();
1.1 downsj 661: standout("Hit any key to continue: ");
662: fflush(stdout);
663: (void) read(0, &ch, 1);
1.20 ! deraadt 664: }
! 665: break;
! 666:
! 667: case CMD_number1: /* new number */
! 668: case CMD_number2:
! 669: new_message(MT_standout,
! 670: "Number of processes to show: ");
! 671: newval = readline(tempbuf1, 8, Yes);
! 672: if (newval > -1) {
! 673: if (newval > max_topn) {
1.1 downsj 674: new_message(MT_standout | MT_delayed,
1.20 ! deraadt 675: " This terminal can only "
! 676: "display %d processes.",
! 677: max_topn);
1.9 deraadt 678: if (putchar('\r') == EOF)
1.20 ! deraadt 679: exit(1);
! 680: }
! 681: if (newval == 0)
1.1 downsj 682: display_header(No);
1.20 ! deraadt 683: else if (newval > topn && topn == 0) {
1.1 downsj 684: /* redraw the header */
685: display_header(Yes);
686: d_header = i_header;
687: }
1.20 ! deraadt 688: topn = newval;
! 689: }
! 690: break;
! 691:
! 692: case CMD_delay: /* new seconds delay */
! 693: new_message(MT_standout, "Seconds to delay: ");
! 694: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
! 695: char *endp;
! 696: double newdelay = strtod(tempbuf2, &endp);
! 697:
! 698: if (newdelay >= 0 && newdelay < 1000000 &&
! 699: *endp == '\0')
1.16 hugh 700: delay = newdelay;
1.20 ! deraadt 701: }
! 702: clear_message();
! 703: break;
! 704:
! 705: case CMD_displays: /* change display count */
! 706: new_message(MT_standout,
! 707: "Displays to show (currently %s): ",
! 708: displays == -1 ? "infinite" :
! 709: itoa(displays));
! 710: if ((i = readline(tempbuf1, 10, Yes)) > 0)
! 711: displays = i;
! 712: else if (i == 0)
! 713: quit(0);
! 714:
! 715: clear_message();
! 716: break;
! 717:
! 718: case CMD_kill: /* kill program */
! 719: new_message(0, "kill ");
! 720: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
! 721: if ((errmsg = kill_procs(tempbuf2)) != NULL) {
1.4 millert 722: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 723: if (putchar('\r') == EOF)
1.20 ! deraadt 724: exit(1);
1.1 downsj 725: no_command = Yes;
726: }
1.20 ! deraadt 727: } else
! 728: clear_message();
! 729: break;
! 730:
! 731: case CMD_renice: /* renice program */
! 732: new_message(0, "renice ");
! 733: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
! 734: if ((errmsg = renice_procs(tempbuf2)) != NULL) {
1.4 millert 735: new_message(MT_standout, "%s", errmsg);
1.9 deraadt 736: if (putchar('\r') == EOF)
1.20 ! deraadt 737: exit(1);
1.1 downsj 738: no_command = Yes;
739: }
1.20 ! deraadt 740: } else
! 741: clear_message();
! 742: break;
1.1 downsj 743:
1.20 ! deraadt 744: case CMD_idletog:
! 745: case CMD_idletog2:
! 746: ps.idle = !ps.idle;
! 747: new_message(MT_standout | MT_delayed,
! 748: " %sisplaying idle processes.",
! 749: ps.idle ? "D" : "Not d");
! 750: if (putchar('\r') == EOF)
! 751: exit(1);
! 752: break;
1.1 downsj 753:
1.20 ! deraadt 754: case CMD_user:
! 755: new_message(MT_standout,
! 756: "Username to show: ");
! 757: if (readline(tempbuf2, sizeof(tempbuf2), No) > 0) {
! 758: if (tempbuf2[0] == '+' &&
! 759: tempbuf2[1] == '\0') {
1.1 downsj 760: ps.uid = -1;
1.20 ! deraadt 761: } else if ((i = userid(tempbuf2)) == -1) {
1.1 downsj 762: new_message(MT_standout,
763: " %s: unknown user", tempbuf2);
764: no_command = Yes;
1.20 ! deraadt 765: } else
1.1 downsj 766: ps.uid = i;
1.20 ! deraadt 767: if (putchar('\r') == EOF)
! 768: exit(1);
! 769: } else
! 770: clear_message();
! 771: break;
1.12 fgsch 772:
1.20 ! deraadt 773: case CMD_system:
! 774: ps.system = !ps.system;
! 775: new_message(MT_standout | MT_delayed,
! 776: " %sisplaying system processes.",
! 777: ps.system ? "D" : "Not d");
! 778: break;
! 779:
! 780: case CMD_order:
! 781: new_message(MT_standout,
! 782: "Order to sort: ");
! 783: if (readline(tempbuf2,
! 784: sizeof(tempbuf2), No) > 0) {
! 785: if ((i = string_index(tempbuf2,
! 786: statics.order_names)) == -1) {
! 787: new_message(MT_standout,
! 788: " %s: unrecognized sorting order",
! 789: tempbuf2);
! 790: no_command = Yes;
! 791: } else
1.1 downsj 792: order_index = i;
1.9 deraadt 793: if (putchar('\r') == EOF)
1.20 ! deraadt 794: exit(1);
! 795: } else
! 796: clear_message();
! 797: break;
1.1 downsj 798:
1.20 ! deraadt 799: default:
! 800: new_message(MT_standout, " BAD CASE IN SWITCH!");
! 801: if (putchar('\r') == EOF)
! 802: exit(1);
1.1 downsj 803: }
804: }
805:
1.20 ! deraadt 806: /* flush out stuff that may have been written */
! 807: fflush(stdout);
! 808: return 0;
1.1 downsj 809: }
810:
1.20 ! deraadt 811:
1.1 downsj 812: /*
813: * reset_display() - reset all the display routine pointers so that entire
814: * screen will get redrawn.
815: */
1.19 pvalchev 816: static void
817: reset_display(void)
1.1 downsj 818: {
1.20 ! deraadt 819: d_loadave = i_loadave;
! 820: d_procstates = i_procstates;
! 821: d_cpustates = i_cpustates;
! 822: d_memory = i_memory;
! 823: d_message = i_message;
! 824: d_header = i_header;
! 825: d_process = i_process;
1.1 downsj 826: }
827:
1.19 pvalchev 828: void
1.20 ! deraadt 829: leave(int signo)
1.1 downsj 830: {
1.20 ! deraadt 831: leaveflag = 1;
1.1 downsj 832: }
833:
1.19 pvalchev 834: void
1.20 ! deraadt 835: tstop(int signo)
1.1 downsj 836: {
1.20 ! deraadt 837: tstopflag = 1;
1.1 downsj 838: }
839:
840: #ifdef SIGWINCH
1.19 pvalchev 841: void
1.20 ! deraadt 842: winch(int signo)
1.1 downsj 843: {
1.20 ! deraadt 844: winchflag = 1;
1.1 downsj 845: }
846: #endif
847:
1.19 pvalchev 848: void
1.20 ! deraadt 849: onalrm(int signo)
1.1 downsj 850: {
851: }
852:
1.19 pvalchev 853: void
1.20 ! deraadt 854: quit(int ret)
1.1 downsj 855: {
1.20 ! deraadt 856: end_screen();
! 857: exit(ret);
1.1 downsj 858: }
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