Annotation of src/usr.bin/systat/main.c, Revision 1.42
1.42 ! canacar 1: /* $Id: main.c,v 1.41 2008/07/12 06:20:47 canacar 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;
211: fprintf(stderr, "usage: %s [-abhir] [-c cache] [-d cnt]", __progname);
212: fprintf(stderr, " [-o field] [-s time] [-w width] [view] [num]\n");
213: exit(1);
1.1 deraadt 214: }
215:
1.21 deraadt 216:
1.1 deraadt 217: void
1.38 canacar 218: add_view_tb(field_view *v)
1.1 deraadt 219: {
1.38 canacar 220: if (curr_view == v)
221: tbprintf("[%s] ", v->name);
222: else
223: tbprintf("%s ", v->name);
1.29 deraadt 224: }
225:
226: void
1.38 canacar 227: show_help(void)
1.29 deraadt 228: {
1.38 canacar 229: int line = 0;
230:
231: if (rawmode)
232: return;
233:
234: tb_start();
235: foreach_view(add_view_tb);
236: tb_end();
237: message_set(tmp_buf);
238:
239: #if 0
240: erase();
241: mvprintw(line, 2, "Systat Help");
242: line += 2;
243: mvprintw(line, 5, " h - Help (this page)");
244: mvprintw(line++, 40, " l - set number of Lines");
245: mvprintw(line, 5, " p - Pause display");
246: mvprintw(line++, 40, " s - Set update interval");
247: mvprintw(line, 5, " v - next View");
248: mvprintw(line++, 40, " q - Quit");
249: line++;
250: mvprintw(line++, 5, "0-7 - select view directly");
251: mvprintw(line++, 5, "SPC - update immediately");
252: mvprintw(line++, 5, "^L - refresh display");
253: line++;
254: mvprintw(line++, 5, "cursor keys - scroll display");
255: line++;
256: mvprintw(line++, 3, "Netstat specific keys::");
257: mvprintw(line, 5, " t - toggle TCP display");
258: mvprintw(line++, 40, " u - toggle UDP display");
259: mvprintw(line++, 5, " n - toggle Name resolution");
260: line++;
261: mvprintw(line++, 3, "Ifstat specific keys::");
262: mvprintw(line, 5, " r - initialize RUN mode");
263: mvprintw(line++, 40, " b - set BOOT mode");
264: mvprintw(line, 5, " t - set TIME mode (default)");
265: line++;
266: line++;
267: mvprintw(line++, 3, "VMstat specific keys::");
268: mvprintw(line, 5, " r - initialize RUN mode");
269: mvprintw(line++, 40, " b - set BOOT mode");
270: mvprintw(line, 5, " t - set TIME mode (default)");
271: mvprintw(line++, 40, " z - zero in RUN mode");
272: line++;
273: mvprintw(line++, 6, "press any key to continue ...");
274:
275: while (getch() == ERR) {
276: if (gotsig_close)
277: break;
278: }
279: #endif
1.21 deraadt 280: }
281:
282: void
1.38 canacar 283: cmd_compat(void)
1.21 deraadt 284: {
1.38 canacar 285: char *s;
286:
287: if (strcasecmp(cmdbuf, "help") == 0) {
288: show_help();
289: need_update = 1;
290: return;
291: }
1.41 canacar 292: if (strcasecmp(cmdbuf, "quit") == 0 || strcasecmp(cmdbuf, "q") == 0) {
1.38 canacar 293: gotsig_close = 1;
294: return;
295: }
296:
297: for (s = cmdbuf; *s && strchr("0123456789+-.eE", *s) != NULL; s++)
298: ;
299: if (*s) {
300: if (set_view(cmdbuf))
301: error("Invalid/ambigious view: %s", cmdbuf);
302: } else
303: cmd_delay();
304: }
305:
306: void
307: cmd_delay(void)
308: {
309: double del;
310: del = atof(cmdbuf);
1.39 canacar 311:
1.38 canacar 312: if (del > 0) {
313: udelay = (useconds_t)(del * 1000000);
314: gotsig_alarm = 1;
1.39 canacar 315: naptime = del;
1.13 deraadt 316: }
1.1 deraadt 317: }
1.14 kstailey 318:
319: void
1.38 canacar 320: cmd_count(void)
1.14 kstailey 321: {
1.38 canacar 322: int ms;
323: ms = atoi(cmdbuf);
324:
325: if (ms <= 0 || ms > lines - HEADER_LINES)
326: maxprint = lines - HEADER_LINES;
327: else
328: maxprint = ms;
1.14 kstailey 329: }
330:
1.38 canacar 331:
332: int
333: keyboard_callback(int ch)
1.1 deraadt 334: {
1.38 canacar 335: switch (ch) {
336: case '?':
337: /* FALLTHROUGH */
338: case 'h':
339: show_help();
340: need_update = 1;
341: break;
342: case 'l':
343: command_set(&cm_count, NULL);
344: break;
345: case 's':
346: command_set(&cm_delay, NULL);
347: break;
348: case ':':
349: command_set(&cm_compat, NULL);
350: break;
351: default:
352: return 0;
353: };
354:
355: return 1;
356: }
1.23 millert 357:
1.38 canacar 358: void
359: initialize(void)
360: {
361: engine_initialize();
362:
363: initvmstat();
364: initpigs();
365: initifstat();
366: initiostat();
367: initsensors();
368: initmembufs();
369: initnetstat();
370: initswap();
371: initpftop();
372: initpf();
1.1 deraadt 373: }
374:
375: void
1.38 canacar 376: gethz(void)
1.1 deraadt 377: {
1.38 canacar 378: struct clockinfo cinf;
379: size_t size = sizeof(cinf);
380: int mib[2];
1.1 deraadt 381:
1.38 canacar 382: mib[0] = CTL_KERN;
383: mib[1] = KERN_CLOCKRATE;
384: if (sysctl(mib, 2, &cinf, &size, NULL, 0) == -1)
385: return;
386: stathz = cinf.stathz;
387: hz = cinf.hz;
1.35 deraadt 388: }
389:
390: int
1.38 canacar 391: main(int argc, char *argv[])
1.35 deraadt 392: {
1.38 canacar 393: char errbuf[_POSIX2_LINE_MAX];
394: extern char *optarg;
395: extern int optind;
396: double delay = 5;
397:
398: char *viewstr = NULL;
399:
400: gid_t gid;
401: int countmax = 0;
402: int maxlines = 0;
403:
404: int ch;
405:
406: ut = open(_PATH_UTMP, O_RDONLY);
407: if (ut < 0) {
408: warn("No utmp");
409: }
410:
411: kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf);
412: if (kd == NULL)
413: warnx("kvm_openfiles: %s", errbuf);
414:
415: gid = getgid();
416: if (setresgid(gid, gid, gid) == -1)
417: err(1, "setresgid");
418:
419: while ((ch = getopt(argc, argv, "abd:hins:S:w:")) != -1) {
420: switch (ch) {
421: case 'a':
422: maxlines = -1;
423: break;
424: case 'b':
425: rawmode = 1;
426: interactive = 0;
427: break;
428: case 'd':
429: countmax = atoi(optarg);
430: if (countmax < 0)
431: countmax = 0;
432: break;
433: case 'i':
434: interactive = 1;
435: break;
436: case 'n':
437: nflag = 1;
438: break;
439: case 's':
440: delay = atof(optarg);
1.39 canacar 441: if (delay <= 0)
1.38 canacar 442: delay = 5;
443: break;
444: case 'S':
445: dispstart = atoi(optarg);
446: if (dispstart < 0)
447: dispstart = 0;
448: break;
449: case 'w':
450: rawwidth = atoi(optarg);
451: if (rawwidth < 1)
452: rawwidth = DEFAULT_WIDTH;
453: if (rawwidth >= MAX_LINE_BUF)
454: rawwidth = MAX_LINE_BUF - 1;
455: break;
456: case 'h':
457: /* FALLTHROUGH */
458: default:
459: usage();
460: /* NOTREACHED */
461: }
462: }
463:
464: argc -= optind;
465: argv += optind;
466:
467: if (argc == 1) {
468: double del = atof(argv[0]);
469: if (del == 0)
470: viewstr = argv[0];
471: else
472: delay = del;
473: } else if (argc == 2) {
474: viewstr = argv[0];
475: delay = atof(argv[1]);
1.42 ! canacar 476: if (delay <= 0)
! 477: delay = 5;
1.38 canacar 478: }
479:
480: udelay = (useconds_t)(delay * 1000000.0);
481: if (udelay < 1)
482: udelay = 1;
1.39 canacar 483:
484: naptime = (double)udelay / 1000000.0;
1.38 canacar 485:
486: gethostname(hostname, sizeof (hostname));
487: gethz();
488:
489: initialize();
490:
491: set_order(NULL);
492: if (viewstr && set_view(viewstr)) {
493: fprintf(stderr, "Unknown/ambigious view name: %s\n", viewstr);
494: return 1;
495: }
496:
497: if (!isatty(STDOUT_FILENO)) {
498: rawmode = 1;
499: interactive = 0;
500: }
501:
502: setup_term(maxlines);
503:
504: if (rawmode && countmax == 0)
505: countmax = 1;
506:
507: gotsig_alarm = 1;
1.35 deraadt 508:
1.38 canacar 509: engine_loop(countmax);
1.35 deraadt 510:
1.38 canacar 511: return 0;
1.1 deraadt 512: }
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