Annotation of src/usr.bin/systat/main.c, Revision 1.45
1.45 ! canacar 1: /* $Id: main.c,v 1.44 2008/08/13 06:20:48 jmc Exp $ */
1.38 canacar 2: /*
3: * Copyright (c) 2001, 2007 Can Erkin Acar
4: * Copyright (c) 2001 Daniel Hartmeier
5: * All rights reserved.
1.1 deraadt 6: *
7: * Redistribution and use in source and binary forms, with or without
8: * modification, are permitted provided that the following conditions
9: * are met:
10: *
1.38 canacar 11: * - Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * - Redistributions in binary form must reproduce the above
14: * copyright notice, this list of conditions and the following
15: * disclaimer in the documentation and/or other materials provided
16: * with the distribution.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21: * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22: * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24: * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25: * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26: * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28: * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29: * POSSIBILITY OF SUCH DAMAGE.
30: *
1.1 deraadt 31: */
32:
1.38 canacar 33: #include <sys/types.h>
1.1 deraadt 34: #include <sys/param.h>
1.21 deraadt 35: #include <sys/sysctl.h>
1.1 deraadt 36:
1.38 canacar 37:
38: #include <ctype.h>
39: #include <curses.h>
1.1 deraadt 40: #include <err.h>
1.38 canacar 41: #include <errno.h>
42: #include <fcntl.h>
43: #include <limits.h>
44: #include <netdb.h>
1.1 deraadt 45: #include <signal.h>
46: #include <stdio.h>
1.38 canacar 47: #include <stdlib.h>
1.1 deraadt 48: #include <string.h>
1.38 canacar 49: #include <stdarg.h>
1.3 deraadt 50: #include <unistd.h>
1.35 deraadt 51: #include <utmp.h>
1.1 deraadt 52:
1.38 canacar 53: #include "engine.h"
1.1 deraadt 54: #include "systat.h"
55:
1.21 deraadt 56: double dellave;
1.1 deraadt 57:
1.21 deraadt 58: kvm_t *kd;
59: char *nlistf = NULL;
1.20 pvalchev 60: char *memf = NULL;
1.21 deraadt 61: double avenrun[3];
1.36 tedu 62: double naptime = 5.0;
1.21 deraadt 63: int verbose = 1; /* to report kvm read errs */
1.38 canacar 64: int nflag = 1;
1.35 deraadt 65: int ut, hz, stathz;
1.1 deraadt 66: char hostname[MAXHOSTNAMELEN];
67: WINDOW *wnd;
1.32 deraadt 68: int CMDLINE;
1.1 deraadt 69:
1.38 canacar 70: #define TIMEPOS 55
71:
72: /* command prompt */
73:
74: void cmd_delay(void);
75: void cmd_count(void);
76: void cmd_compat(void);
77:
78: struct command cm_compat = {"Command", cmd_compat};
79: struct command cm_delay = {"Seconds to delay", cmd_delay};
80: struct command cm_count = {"Number of lines to display", cmd_count};
1.1 deraadt 81:
1.38 canacar 82:
83: /* display functions */
1.3 deraadt 84:
1.2 deraadt 85: int
1.38 canacar 86: print_header(void)
1.1 deraadt 87: {
1.38 canacar 88: struct tm *tp;
1.40 deraadt 89: time_t t, now;
1.38 canacar 90: order_type *ordering;
1.40 deraadt 91: int start = dispstart + 1, end = dispstart + maxprint;
92: extern int ucount();
93: char tbuf[26];
1.38 canacar 94:
95: if (end > num_disp)
96: end = num_disp;
97:
98: tb_start();
1.35 deraadt 99:
1.38 canacar 100: #if 0
101: if (curr_mgr && curr_mgr->sort_fn != NULL) {
102: ordering = curr_mgr->order_curr;
103: if (ordering != NULL) {
104: tbprintf(", Order: %s", ordering->name);
105: if (sortdir < 0 && ordering->func != NULL)
106: tbprintf(" (rev)");
107: }
1.35 deraadt 108: }
1.38 canacar 109: #endif
1.1 deraadt 110:
1.38 canacar 111: getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0]));
112:
113: time(&now);
114: strlcpy(tbuf, ctime(&now), sizeof tbuf);
115: tbprintf(" %d users", ucount());
116: tbprintf(" Load %.2f %.2f %.2f", avenrun[0], avenrun[1], avenrun[2]);
117: if (num_disp && (start > 1 || end != num_disp))
118: tbprintf(" (%u-%u of %u)", start, end, num_disp);
1.25 deraadt 119:
1.38 canacar 120: if (paused)
121: tbprintf(" PAUSED");
1.25 deraadt 122:
1.38 canacar 123: if (rawmode)
124: printf("\n\n%s\n", tmp_buf);
125: else
126: mvprintw(0, 0, "%s", tmp_buf);
1.36 tedu 127:
1.38 canacar 128: mvprintw(0, TIMEPOS, "%s", tbuf);
1.3 deraadt 129:
1.24 deraadt 130:
1.38 canacar 131: return (1);
1.1 deraadt 132: }
1.3 deraadt 133:
1.38 canacar 134: /* compatibility functions, rearrange later */
1.21 deraadt 135: void
1.38 canacar 136: error(const char *fmt, ...)
1.21 deraadt 137: {
1.38 canacar 138: va_list ap;
139: char buf[MAX_LINE_BUF];
140:
141: va_start(ap, fmt);
142: vsnprintf(buf, sizeof buf, fmt, ap);
143: va_end(ap);
1.21 deraadt 144:
1.38 canacar 145: message_set(buf);
1.21 deraadt 146: }
147:
1.38 canacar 148: void
149: nlisterr(struct nlist namelist[])
1.3 deraadt 150: {
1.38 canacar 151: int i, n;
152:
153: n = 0;
154: clear();
155: mvprintw(2, 10, "systat: nlist: can't find following symbols:");
156: for (i = 0;
157: namelist[i].n_name != NULL && *namelist[i].n_name != '\0'; i++)
158: if (namelist[i].n_value == 0)
159: mvprintw(2 + ++n, 10, "%s", namelist[i].n_name);
160: move(CMDLINE, 0);
161: clrtoeol();
162: refresh();
163: endwin();
1.3 deraadt 164: exit(1);
165: }
166:
1.1 deraadt 167: void
1.38 canacar 168: die(void)
1.1 deraadt 169: {
1.38 canacar 170: if (!rawmode)
171: endwin();
172: exit(0);
1.1 deraadt 173: }
174:
1.38 canacar 175:
176: int
177: prefix(char *s1, char *s2)
1.1 deraadt 178: {
1.38 canacar 179:
180: while (*s1 == *s2) {
181: if (*s1 == '\0')
182: return (1);
183: s1++, s2++;
184: }
185: return (*s1 == '\0');
1.21 deraadt 186: }
187:
1.38 canacar 188: /* calculate number of users on the system */
189: int
190: ucount(void)
1.21 deraadt 191: {
1.38 canacar 192: int nusers = 0;
193: struct utmp utmp;
1.35 deraadt 194:
1.38 canacar 195: if (ut < 0)
196: return (0);
197: lseek(ut, (off_t)0, SEEK_SET);
198: while (read(ut, &utmp, sizeof(utmp)))
199: if (utmp.ut_name[0] != '\0')
200: nusers++;
1.35 deraadt 201:
1.38 canacar 202: return (nusers);
1.1 deraadt 203: }
204:
1.38 canacar 205: /* main program functions */
206:
1.1 deraadt 207: void
1.38 canacar 208: usage()
1.1 deraadt 209: {
1.38 canacar 210: extern char *__progname;
1.44 jmc 211: fprintf(stderr, "usage: %s [-abin] [-d count] "
1.43 matthieu 212: "[-s delay] [-w width] [view] [delay]\n", __progname);
1.38 canacar 213: exit(1);
1.1 deraadt 214: }
215:
1.45 ! canacar 216: void
! 217: show_view(void)
! 218: {
! 219: if (rawmode)
! 220: return;
! 221:
! 222: tb_start();
! 223: tbprintf("%s %g", curr_view->name, naptime);
! 224: tb_end();
! 225: message_set(tmp_buf);
! 226: }
1.21 deraadt 227:
1.1 deraadt 228: void
1.38 canacar 229: add_view_tb(field_view *v)
1.1 deraadt 230: {
1.38 canacar 231: if (curr_view == v)
232: tbprintf("[%s] ", v->name);
233: else
234: tbprintf("%s ", v->name);
1.29 deraadt 235: }
236:
237: void
1.38 canacar 238: show_help(void)
1.29 deraadt 239: {
1.38 canacar 240: int line = 0;
241:
242: if (rawmode)
243: return;
244:
245: tb_start();
246: foreach_view(add_view_tb);
247: tb_end();
248: message_set(tmp_buf);
249:
250: #if 0
251: erase();
252: mvprintw(line, 2, "Systat Help");
253: line += 2;
254: mvprintw(line, 5, " h - Help (this page)");
255: mvprintw(line++, 40, " l - set number of Lines");
256: mvprintw(line, 5, " p - Pause display");
257: mvprintw(line++, 40, " s - Set update interval");
258: mvprintw(line, 5, " v - next View");
259: mvprintw(line++, 40, " q - Quit");
260: line++;
261: mvprintw(line++, 5, "0-7 - select view directly");
262: mvprintw(line++, 5, "SPC - update immediately");
263: mvprintw(line++, 5, "^L - refresh display");
264: line++;
265: mvprintw(line++, 5, "cursor keys - scroll display");
266: line++;
267: mvprintw(line++, 3, "Netstat specific keys::");
268: mvprintw(line, 5, " t - toggle TCP display");
269: mvprintw(line++, 40, " u - toggle UDP display");
270: mvprintw(line++, 5, " n - toggle Name resolution");
271: line++;
272: mvprintw(line++, 3, "Ifstat specific keys::");
273: mvprintw(line, 5, " r - initialize RUN mode");
274: mvprintw(line++, 40, " b - set BOOT mode");
275: mvprintw(line, 5, " t - set TIME mode (default)");
276: line++;
277: line++;
278: mvprintw(line++, 3, "VMstat specific keys::");
279: mvprintw(line, 5, " r - initialize RUN mode");
280: mvprintw(line++, 40, " b - set BOOT mode");
281: mvprintw(line, 5, " t - set TIME mode (default)");
282: mvprintw(line++, 40, " z - zero in RUN mode");
283: line++;
284: mvprintw(line++, 6, "press any key to continue ...");
285:
286: while (getch() == ERR) {
287: if (gotsig_close)
288: break;
289: }
290: #endif
1.21 deraadt 291: }
292:
293: void
1.38 canacar 294: cmd_compat(void)
1.21 deraadt 295: {
1.38 canacar 296: char *s;
297:
298: if (strcasecmp(cmdbuf, "help") == 0) {
299: show_help();
300: need_update = 1;
301: return;
302: }
1.41 canacar 303: if (strcasecmp(cmdbuf, "quit") == 0 || strcasecmp(cmdbuf, "q") == 0) {
1.38 canacar 304: gotsig_close = 1;
305: return;
306: }
307:
308: for (s = cmdbuf; *s && strchr("0123456789+-.eE", *s) != NULL; s++)
309: ;
310: if (*s) {
311: if (set_view(cmdbuf))
312: error("Invalid/ambigious view: %s", cmdbuf);
313: } else
314: cmd_delay();
315: }
316:
317: void
318: cmd_delay(void)
319: {
320: double del;
321: del = atof(cmdbuf);
1.39 canacar 322:
1.38 canacar 323: if (del > 0) {
324: udelay = (useconds_t)(del * 1000000);
325: gotsig_alarm = 1;
1.39 canacar 326: naptime = del;
1.13 deraadt 327: }
1.1 deraadt 328: }
1.14 kstailey 329:
330: void
1.38 canacar 331: cmd_count(void)
1.14 kstailey 332: {
1.38 canacar 333: int ms;
334: ms = atoi(cmdbuf);
335:
336: if (ms <= 0 || ms > lines - HEADER_LINES)
337: maxprint = lines - HEADER_LINES;
338: else
339: maxprint = ms;
1.14 kstailey 340: }
341:
1.38 canacar 342:
343: int
344: keyboard_callback(int ch)
1.1 deraadt 345: {
1.38 canacar 346: switch (ch) {
347: case '?':
348: /* FALLTHROUGH */
349: case 'h':
350: show_help();
1.45 ! canacar 351: need_update = 1;
! 352: break;
! 353: case CTRL_G:
! 354: show_view();
1.38 canacar 355: need_update = 1;
356: break;
357: case 'l':
358: command_set(&cm_count, NULL);
359: break;
360: case 's':
361: command_set(&cm_delay, NULL);
362: break;
363: case ':':
364: command_set(&cm_compat, NULL);
365: break;
366: default:
367: return 0;
368: };
369:
370: return 1;
371: }
1.23 millert 372:
1.38 canacar 373: void
374: initialize(void)
375: {
376: engine_initialize();
377:
378: initvmstat();
379: initpigs();
380: initifstat();
381: initiostat();
382: initsensors();
383: initmembufs();
384: initnetstat();
385: initswap();
386: initpftop();
387: initpf();
1.1 deraadt 388: }
389:
390: void
1.38 canacar 391: gethz(void)
1.1 deraadt 392: {
1.38 canacar 393: struct clockinfo cinf;
394: size_t size = sizeof(cinf);
395: int mib[2];
1.1 deraadt 396:
1.38 canacar 397: mib[0] = CTL_KERN;
398: mib[1] = KERN_CLOCKRATE;
399: if (sysctl(mib, 2, &cinf, &size, NULL, 0) == -1)
400: return;
401: stathz = cinf.stathz;
402: hz = cinf.hz;
1.35 deraadt 403: }
404:
405: int
1.38 canacar 406: main(int argc, char *argv[])
1.35 deraadt 407: {
1.38 canacar 408: char errbuf[_POSIX2_LINE_MAX];
409: extern char *optarg;
410: extern int optind;
411: double delay = 5;
412:
413: char *viewstr = NULL;
414:
415: gid_t gid;
416: int countmax = 0;
417: int maxlines = 0;
418:
419: int ch;
420:
421: ut = open(_PATH_UTMP, O_RDONLY);
422: if (ut < 0) {
423: warn("No utmp");
424: }
425:
426: kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf);
427:
428: gid = getgid();
429: if (setresgid(gid, gid, gid) == -1)
430: err(1, "setresgid");
431:
1.43 matthieu 432: while ((ch = getopt(argc, argv, "abd:ins:S:w:")) != -1) {
1.38 canacar 433: switch (ch) {
434: case 'a':
435: maxlines = -1;
436: break;
437: case 'b':
438: rawmode = 1;
439: interactive = 0;
440: break;
441: case 'd':
442: countmax = atoi(optarg);
443: if (countmax < 0)
444: countmax = 0;
445: break;
446: case 'i':
447: interactive = 1;
448: break;
449: case 'n':
450: nflag = 1;
451: break;
452: case 's':
453: delay = atof(optarg);
1.39 canacar 454: if (delay <= 0)
1.38 canacar 455: delay = 5;
456: break;
457: case 'S':
458: dispstart = atoi(optarg);
459: if (dispstart < 0)
460: dispstart = 0;
461: break;
462: case 'w':
463: rawwidth = atoi(optarg);
464: if (rawwidth < 1)
465: rawwidth = DEFAULT_WIDTH;
466: if (rawwidth >= MAX_LINE_BUF)
467: rawwidth = MAX_LINE_BUF - 1;
468: break;
469: default:
470: usage();
471: /* NOTREACHED */
472: }
473: }
1.43 matthieu 474:
475: if (kd == NULL)
476: warnx("kvm_openfiles: %s", errbuf);
1.38 canacar 477:
478: argc -= optind;
479: argv += optind;
480:
481: if (argc == 1) {
482: double del = atof(argv[0]);
483: if (del == 0)
484: viewstr = argv[0];
485: else
486: delay = del;
487: } else if (argc == 2) {
488: viewstr = argv[0];
489: delay = atof(argv[1]);
1.42 canacar 490: if (delay <= 0)
491: delay = 5;
1.38 canacar 492: }
493:
494: udelay = (useconds_t)(delay * 1000000.0);
495: if (udelay < 1)
496: udelay = 1;
1.39 canacar 497:
498: naptime = (double)udelay / 1000000.0;
1.38 canacar 499:
500: gethostname(hostname, sizeof (hostname));
501: gethz();
502:
503: initialize();
504:
505: set_order(NULL);
506: if (viewstr && set_view(viewstr)) {
507: fprintf(stderr, "Unknown/ambigious view name: %s\n", viewstr);
508: return 1;
509: }
510:
511: if (!isatty(STDOUT_FILENO)) {
512: rawmode = 1;
513: interactive = 0;
514: }
515:
516: setup_term(maxlines);
517:
518: if (rawmode && countmax == 0)
519: countmax = 1;
520:
521: gotsig_alarm = 1;
1.35 deraadt 522:
1.38 canacar 523: engine_loop(countmax);
1.35 deraadt 524:
1.38 canacar 525: return 0;
1.1 deraadt 526: }
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