Annotation of src/usr.bin/systat/main.c, Revision 1.48
1.48 ! canacar 1: /* $Id: main.c,v 1.47 2008/11/01 00:41:11 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:
1.46 canacar 74: void cmd_delay(const char *);
75: void cmd_count(const char *);
76: void cmd_compat(const char *);
1.38 canacar 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);
1.21 deraadt 249: }
250:
251: void
1.46 canacar 252: cmd_compat(const char *buf)
1.21 deraadt 253: {
1.46 canacar 254: const char *s;
1.38 canacar 255:
1.46 canacar 256: if (strcasecmp(buf, "help") == 0) {
1.38 canacar 257: show_help();
258: need_update = 1;
259: return;
260: }
1.46 canacar 261: if (strcasecmp(buf, "quit") == 0 || strcasecmp(buf, "q") == 0) {
1.38 canacar 262: gotsig_close = 1;
263: return;
264: }
1.46 canacar 265: if (strcasecmp(buf, "stop") == 0) {
266: paused = 1;
267: gotsig_alarm = 1;
268: return;
269: }
270: if (strncasecmp(buf, "start", 5) == 0) {
271: paused = 0;
272: gotsig_alarm = 1;
1.47 canacar 273: cmd_delay(buf + 5);
1.46 canacar 274: return;
275: }
1.38 canacar 276:
1.46 canacar 277: for (s = buf; *s && strchr("0123456789+-.eE", *s) != NULL; s++)
1.38 canacar 278: ;
279: if (*s) {
1.46 canacar 280: if (set_view(buf))
281: error("Invalid/ambigious view: %s", buf);
1.38 canacar 282: } else
1.46 canacar 283: cmd_delay(buf);
1.38 canacar 284: }
285:
286: void
1.46 canacar 287: cmd_delay(const char *buf)
1.38 canacar 288: {
289: double del;
1.46 canacar 290: del = atof(buf);
1.39 canacar 291:
1.38 canacar 292: if (del > 0) {
293: udelay = (useconds_t)(del * 1000000);
294: gotsig_alarm = 1;
1.39 canacar 295: naptime = del;
1.13 deraadt 296: }
1.1 deraadt 297: }
1.14 kstailey 298:
299: void
1.46 canacar 300: cmd_count(const char *buf)
1.14 kstailey 301: {
1.38 canacar 302: int ms;
1.46 canacar 303: ms = atoi(buf);
1.38 canacar 304:
305: if (ms <= 0 || ms > lines - HEADER_LINES)
306: maxprint = lines - HEADER_LINES;
307: else
308: maxprint = ms;
1.14 kstailey 309: }
310:
1.38 canacar 311:
312: int
313: keyboard_callback(int ch)
1.1 deraadt 314: {
1.38 canacar 315: switch (ch) {
316: case '?':
317: /* FALLTHROUGH */
318: case 'h':
319: show_help();
1.45 canacar 320: need_update = 1;
321: break;
322: case CTRL_G:
323: show_view();
1.38 canacar 324: need_update = 1;
325: break;
326: case 'l':
327: command_set(&cm_count, NULL);
328: break;
329: case 's':
330: command_set(&cm_delay, NULL);
331: break;
332: case ':':
333: command_set(&cm_compat, NULL);
334: break;
335: default:
336: return 0;
337: };
338:
339: return 1;
340: }
1.23 millert 341:
1.38 canacar 342: void
343: initialize(void)
344: {
345: engine_initialize();
346:
347: initvmstat();
348: initpigs();
349: initifstat();
350: initiostat();
351: initsensors();
352: initmembufs();
353: initnetstat();
354: initswap();
355: initpftop();
356: initpf();
1.48 ! canacar 357: initpool();
1.1 deraadt 358: }
359:
360: void
1.38 canacar 361: gethz(void)
1.1 deraadt 362: {
1.38 canacar 363: struct clockinfo cinf;
364: size_t size = sizeof(cinf);
365: int mib[2];
1.1 deraadt 366:
1.38 canacar 367: mib[0] = CTL_KERN;
368: mib[1] = KERN_CLOCKRATE;
369: if (sysctl(mib, 2, &cinf, &size, NULL, 0) == -1)
370: return;
371: stathz = cinf.stathz;
372: hz = cinf.hz;
1.35 deraadt 373: }
374:
375: int
1.38 canacar 376: main(int argc, char *argv[])
1.35 deraadt 377: {
1.38 canacar 378: char errbuf[_POSIX2_LINE_MAX];
379: extern char *optarg;
380: extern int optind;
381: double delay = 5;
382:
383: char *viewstr = NULL;
384:
385: gid_t gid;
386: int countmax = 0;
387: int maxlines = 0;
388:
389: int ch;
390:
391: ut = open(_PATH_UTMP, O_RDONLY);
392: if (ut < 0) {
393: warn("No utmp");
394: }
395:
396: kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf);
397:
398: gid = getgid();
399: if (setresgid(gid, gid, gid) == -1)
400: err(1, "setresgid");
401:
1.47 canacar 402: while ((ch = getopt(argc, argv, "abd:ins:w:")) != -1) {
1.38 canacar 403: switch (ch) {
404: case 'a':
405: maxlines = -1;
406: break;
407: case 'b':
408: rawmode = 1;
409: interactive = 0;
410: break;
411: case 'd':
412: countmax = atoi(optarg);
413: if (countmax < 0)
414: countmax = 0;
415: break;
416: case 'i':
417: interactive = 1;
418: break;
419: case 'n':
420: nflag = 1;
421: break;
422: case 's':
423: delay = atof(optarg);
1.39 canacar 424: if (delay <= 0)
1.38 canacar 425: delay = 5;
426: break;
427: case 'w':
428: rawwidth = atoi(optarg);
429: if (rawwidth < 1)
430: rawwidth = DEFAULT_WIDTH;
431: if (rawwidth >= MAX_LINE_BUF)
432: rawwidth = MAX_LINE_BUF - 1;
433: break;
434: default:
435: usage();
436: /* NOTREACHED */
437: }
438: }
1.43 matthieu 439:
440: if (kd == NULL)
441: warnx("kvm_openfiles: %s", errbuf);
1.38 canacar 442:
443: argc -= optind;
444: argv += optind;
445:
446: if (argc == 1) {
447: double del = atof(argv[0]);
448: if (del == 0)
449: viewstr = argv[0];
450: else
451: delay = del;
452: } else if (argc == 2) {
453: viewstr = argv[0];
454: delay = atof(argv[1]);
1.42 canacar 455: if (delay <= 0)
456: delay = 5;
1.38 canacar 457: }
458:
459: udelay = (useconds_t)(delay * 1000000.0);
460: if (udelay < 1)
461: udelay = 1;
1.39 canacar 462:
463: naptime = (double)udelay / 1000000.0;
1.38 canacar 464:
465: gethostname(hostname, sizeof (hostname));
466: gethz();
467:
468: initialize();
469:
470: set_order(NULL);
471: if (viewstr && set_view(viewstr)) {
472: fprintf(stderr, "Unknown/ambigious view name: %s\n", viewstr);
473: return 1;
474: }
475:
476: if (!isatty(STDOUT_FILENO)) {
477: rawmode = 1;
478: interactive = 0;
479: }
480:
481: setup_term(maxlines);
482:
483: if (rawmode && countmax == 0)
484: countmax = 1;
485:
486: gotsig_alarm = 1;
1.35 deraadt 487:
1.38 canacar 488: engine_loop(countmax);
1.35 deraadt 489:
1.38 canacar 490: return 0;
1.1 deraadt 491: }
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