Annotation of src/usr.bin/systat/main.c, Revision 1.66
1.66 ! otto 1: /* $Id: main.c,v 1.65 2016/10/13 05:46:20 tedu 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>
1.21 deraadt 34: #include <sys/sysctl.h>
1.1 deraadt 35:
1.38 canacar 36:
37: #include <ctype.h>
38: #include <curses.h>
1.1 deraadt 39: #include <err.h>
1.38 canacar 40: #include <errno.h>
41: #include <fcntl.h>
42: #include <limits.h>
43: #include <netdb.h>
1.1 deraadt 44: #include <signal.h>
45: #include <stdio.h>
1.38 canacar 46: #include <stdlib.h>
1.1 deraadt 47: #include <string.h>
1.38 canacar 48: #include <stdarg.h>
1.3 deraadt 49: #include <unistd.h>
1.35 deraadt 50: #include <utmp.h>
1.1 deraadt 51:
1.38 canacar 52: #include "engine.h"
1.1 deraadt 53: #include "systat.h"
54:
1.66 ! otto 55: #define TIMEPOS (80 - 8 - 20 - 1)
1.58 lum 56:
1.21 deraadt 57: double dellave;
1.1 deraadt 58:
1.21 deraadt 59: kvm_t *kd;
60: char *nlistf = NULL;
1.20 pvalchev 61: char *memf = NULL;
1.21 deraadt 62: double avenrun[3];
1.36 tedu 63: double naptime = 5.0;
1.21 deraadt 64: int verbose = 1; /* to report kvm read errs */
1.38 canacar 65: int nflag = 1;
1.35 deraadt 66: int ut, hz, stathz;
1.61 deraadt 67: char hostname[HOST_NAME_MAX+1];
1.1 deraadt 68: WINDOW *wnd;
1.32 deraadt 69: int CMDLINE;
1.58 lum 70: char timebuf[26];
71: char uloadbuf[TIMEPOS];
1.1 deraadt 72:
1.38 canacar 73:
1.50 canacar 74: int ucount(void);
75: void usage(void);
76:
1.38 canacar 77: /* command prompt */
78:
1.46 canacar 79: void cmd_delay(const char *);
80: void cmd_count(const char *);
81: void cmd_compat(const char *);
1.38 canacar 82:
83: struct command cm_compat = {"Command", cmd_compat};
84: struct command cm_delay = {"Seconds to delay", cmd_delay};
85: struct command cm_count = {"Number of lines to display", cmd_count};
1.1 deraadt 86:
1.38 canacar 87:
88: /* display functions */
1.3 deraadt 89:
1.2 deraadt 90: int
1.38 canacar 91: print_header(void)
1.1 deraadt 92: {
1.50 canacar 93: time_t now;
1.40 deraadt 94: int start = dispstart + 1, end = dispstart + maxprint;
1.58 lum 95: char tmpbuf[TIMEPOS];
96: char header[MAX_LINE_BUF];
1.38 canacar 97:
98: if (end > num_disp)
99: end = num_disp;
100:
101: tb_start();
1.35 deraadt 102:
1.58 lum 103: if (!paused) {
1.65 tedu 104: char *ctim;
105:
1.58 lum 106: getloadavg(avenrun, sizeof(avenrun) / sizeof(avenrun[0]));
1.38 canacar 107:
1.58 lum 108: snprintf(uloadbuf, sizeof(uloadbuf),
1.66 ! otto 109: "%4d users Load %.2f %.2f %.2f",
1.58 lum 110: ucount(), avenrun[0], avenrun[1], avenrun[2]);
1.25 deraadt 111:
1.58 lum 112: time(&now);
1.65 tedu 113: ctim = ctime(&now);
114: ctim[11+8] = '\0';
115: strlcpy(timebuf, ctim + 11, sizeof(timebuf));
1.58 lum 116: }
1.25 deraadt 117:
1.58 lum 118: if (num_disp && (start > 1 || end != num_disp))
119: snprintf(tmpbuf, sizeof(tmpbuf),
120: "%s (%u-%u of %u) %s", uloadbuf, start, end, num_disp,
121: paused ? "PAUSED" : "");
122: else
123: snprintf(tmpbuf, sizeof(tmpbuf),
124: "%s %s", uloadbuf,
125: paused ? "PAUSED" : "");
126:
1.66 ! otto 127: snprintf(header, sizeof(header), "%-*s %19.19s %s", TIMEPOS - 1,
! 128: tmpbuf, hostname, timebuf);
1.58 lum 129:
130: if (rawmode)
131: printf("\n\n%s\n", header);
132: else
133: mvprintw(0, 0, "%s", header);
1.24 deraadt 134:
1.38 canacar 135: return (1);
1.1 deraadt 136: }
1.3 deraadt 137:
1.38 canacar 138: /* compatibility functions, rearrange later */
1.21 deraadt 139: void
1.38 canacar 140: error(const char *fmt, ...)
1.21 deraadt 141: {
1.38 canacar 142: va_list ap;
143: char buf[MAX_LINE_BUF];
144:
145: va_start(ap, fmt);
146: vsnprintf(buf, sizeof buf, fmt, ap);
147: va_end(ap);
1.21 deraadt 148:
1.38 canacar 149: message_set(buf);
1.21 deraadt 150: }
151:
1.38 canacar 152: void
153: nlisterr(struct nlist namelist[])
1.3 deraadt 154: {
1.38 canacar 155: int i, n;
156:
157: n = 0;
158: clear();
159: mvprintw(2, 10, "systat: nlist: can't find following symbols:");
160: for (i = 0;
161: namelist[i].n_name != NULL && *namelist[i].n_name != '\0'; i++)
162: if (namelist[i].n_value == 0)
163: mvprintw(2 + ++n, 10, "%s", namelist[i].n_name);
164: move(CMDLINE, 0);
165: clrtoeol();
166: refresh();
167: endwin();
1.3 deraadt 168: exit(1);
169: }
170:
1.1 deraadt 171: void
1.38 canacar 172: die(void)
1.1 deraadt 173: {
1.38 canacar 174: if (!rawmode)
175: endwin();
176: exit(0);
1.1 deraadt 177: }
178:
1.38 canacar 179:
180: int
181: prefix(char *s1, char *s2)
1.1 deraadt 182: {
1.38 canacar 183:
184: while (*s1 == *s2) {
185: if (*s1 == '\0')
186: return (1);
187: s1++, s2++;
188: }
189: return (*s1 == '\0');
1.21 deraadt 190: }
191:
1.38 canacar 192: /* calculate number of users on the system */
193: int
194: ucount(void)
1.21 deraadt 195: {
1.38 canacar 196: int nusers = 0;
197: struct utmp utmp;
1.35 deraadt 198:
1.38 canacar 199: if (ut < 0)
200: return (0);
201: lseek(ut, (off_t)0, SEEK_SET);
202: while (read(ut, &utmp, sizeof(utmp)))
203: if (utmp.ut_name[0] != '\0')
204: nusers++;
1.35 deraadt 205:
1.38 canacar 206: return (nusers);
1.1 deraadt 207: }
208:
1.38 canacar 209: /* main program functions */
210:
1.1 deraadt 211: void
1.50 canacar 212: usage(void)
1.1 deraadt 213: {
1.38 canacar 214: extern char *__progname;
1.60 reyk 215: fprintf(stderr, "usage: %s [-aBbiNn] [-d count] "
1.43 matthieu 216: "[-s delay] [-w width] [view] [delay]\n", __progname);
1.38 canacar 217: exit(1);
1.1 deraadt 218: }
219:
1.45 canacar 220: void
221: show_view(void)
222: {
223: if (rawmode)
224: return;
225:
226: tb_start();
227: tbprintf("%s %g", curr_view->name, naptime);
228: tb_end();
229: message_set(tmp_buf);
230: }
1.21 deraadt 231:
1.1 deraadt 232: void
1.38 canacar 233: add_view_tb(field_view *v)
1.1 deraadt 234: {
1.38 canacar 235: if (curr_view == v)
236: tbprintf("[%s] ", v->name);
237: else
238: tbprintf("%s ", v->name);
1.29 deraadt 239: }
240:
241: void
1.38 canacar 242: show_help(void)
1.29 deraadt 243: {
1.38 canacar 244: if (rawmode)
245: return;
246:
247: tb_start();
248: foreach_view(add_view_tb);
249: tb_end();
250: message_set(tmp_buf);
1.21 deraadt 251: }
252:
253: void
1.46 canacar 254: cmd_compat(const char *buf)
1.21 deraadt 255: {
1.46 canacar 256: const char *s;
1.38 canacar 257:
1.46 canacar 258: if (strcasecmp(buf, "help") == 0) {
1.38 canacar 259: show_help();
260: need_update = 1;
261: return;
262: }
1.46 canacar 263: if (strcasecmp(buf, "quit") == 0 || strcasecmp(buf, "q") == 0) {
1.38 canacar 264: gotsig_close = 1;
265: return;
266: }
1.46 canacar 267: if (strcasecmp(buf, "stop") == 0) {
268: paused = 1;
269: gotsig_alarm = 1;
270: return;
271: }
272: if (strncasecmp(buf, "start", 5) == 0) {
273: paused = 0;
274: gotsig_alarm = 1;
1.47 canacar 275: cmd_delay(buf + 5);
1.46 canacar 276: return;
277: }
1.38 canacar 278:
1.46 canacar 279: for (s = buf; *s && strchr("0123456789+-.eE", *s) != NULL; s++)
1.38 canacar 280: ;
281: if (*s) {
1.46 canacar 282: if (set_view(buf))
1.49 espie 283: error("Invalid/ambiguous view: %s", buf);
1.38 canacar 284: } else
1.46 canacar 285: cmd_delay(buf);
1.38 canacar 286: }
287:
288: void
1.46 canacar 289: cmd_delay(const char *buf)
1.38 canacar 290: {
291: double del;
1.46 canacar 292: del = atof(buf);
1.39 canacar 293:
1.38 canacar 294: if (del > 0) {
295: udelay = (useconds_t)(del * 1000000);
296: gotsig_alarm = 1;
1.39 canacar 297: naptime = del;
1.13 deraadt 298: }
1.1 deraadt 299: }
1.14 kstailey 300:
301: void
1.46 canacar 302: cmd_count(const char *buf)
1.14 kstailey 303: {
1.63 deraadt 304: const char *errstr;
1.38 canacar 305:
1.63 deraadt 306: maxprint = strtonum(buf, 1, lines - HEADER_LINES, &errstr);
307: if (errstr)
1.38 canacar 308: maxprint = lines - HEADER_LINES;
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);
1.59 mpf 331: break;
332: case ',':
333: separate_thousands = !separate_thousands;
334: gotsig_alarm = 1;
1.38 canacar 335: break;
336: case ':':
337: command_set(&cm_compat, NULL);
338: break;
339: default:
340: return 0;
341: };
342:
343: return 1;
344: }
1.23 millert 345:
1.38 canacar 346: void
347: initialize(void)
348: {
349: engine_initialize();
350:
351: initvmstat();
352: initpigs();
353: initifstat();
354: initiostat();
355: initsensors();
356: initmembufs();
357: initnetstat();
358: initswap();
359: initpftop();
360: initpf();
1.48 canacar 361: initpool();
1.51 canacar 362: initmalloc();
1.52 jasper 363: initnfs();
1.60 reyk 364: initcpu();
1.1 deraadt 365: }
366:
367: void
1.38 canacar 368: gethz(void)
1.1 deraadt 369: {
1.38 canacar 370: struct clockinfo cinf;
371: size_t size = sizeof(cinf);
372: int mib[2];
1.1 deraadt 373:
1.38 canacar 374: mib[0] = CTL_KERN;
375: mib[1] = KERN_CLOCKRATE;
376: if (sysctl(mib, 2, &cinf, &size, NULL, 0) == -1)
377: return;
378: stathz = cinf.stathz;
379: hz = cinf.hz;
1.35 deraadt 380: }
381:
382: int
1.38 canacar 383: main(int argc, char *argv[])
1.35 deraadt 384: {
1.38 canacar 385: char errbuf[_POSIX2_LINE_MAX];
1.63 deraadt 386: const char *errstr;
1.38 canacar 387: extern char *optarg;
388: extern int optind;
389: double delay = 5;
390:
391: char *viewstr = NULL;
392:
393: gid_t gid;
394: int countmax = 0;
395: int maxlines = 0;
396:
397: int ch;
398:
399: ut = open(_PATH_UTMP, O_RDONLY);
400: if (ut < 0) {
401: warn("No utmp");
402: }
403:
1.62 claudio 404: kd = kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf);
1.38 canacar 405:
406: gid = getgid();
407: if (setresgid(gid, gid, gid) == -1)
408: err(1, "setresgid");
409:
1.60 reyk 410: while ((ch = getopt(argc, argv, "BNabd:ins:w:")) != -1) {
1.38 canacar 411: switch (ch) {
412: case 'a':
413: maxlines = -1;
414: break;
1.60 reyk 415: case 'B':
416: averageonly = 1;
417: if (countmax < 2)
418: countmax = 2;
419: /* FALLTHROUGH */
1.38 canacar 420: case 'b':
421: rawmode = 1;
422: interactive = 0;
423: break;
424: case 'd':
1.63 deraadt 425: countmax = strtonum(optarg, 1, INT_MAX, &errstr);
426: if (errstr)
427: errx(1, "-d %s: %s", optarg, errstr);
1.38 canacar 428: break;
429: case 'i':
430: interactive = 1;
431: break;
1.55 sthen 432: case 'N':
433: nflag = 0;
434: break;
1.38 canacar 435: case 'n':
1.55 sthen 436: /* this is a noop, -n is the default */
1.38 canacar 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 'w':
1.63 deraadt 445: rawwidth = strtonum(optarg, 1, MAX_LINE_BUF-1, &errstr);
446: if (errstr)
447: errx(1, "-w %s: %s", optarg, errstr);
1.38 canacar 448: break;
449: default:
450: usage();
451: /* NOTREACHED */
452: }
453: }
1.43 matthieu 454:
455: if (kd == NULL)
456: warnx("kvm_openfiles: %s", errbuf);
1.38 canacar 457:
458: argc -= optind;
459: argv += optind;
460:
461: if (argc == 1) {
462: double del = atof(argv[0]);
463: if (del == 0)
464: viewstr = argv[0];
465: else
466: delay = del;
467: } else if (argc == 2) {
468: viewstr = argv[0];
469: delay = atof(argv[1]);
1.42 canacar 470: if (delay <= 0)
471: delay = 5;
1.38 canacar 472: }
473:
474: udelay = (useconds_t)(delay * 1000000.0);
475: if (udelay < 1)
476: udelay = 1;
1.39 canacar 477:
478: naptime = (double)udelay / 1000000.0;
1.38 canacar 479:
480: gethostname(hostname, sizeof (hostname));
481: gethz();
482:
483: initialize();
484:
485: set_order(NULL);
486: if (viewstr && set_view(viewstr)) {
1.49 espie 487: fprintf(stderr, "Unknown/ambiguous view name: %s\n", viewstr);
1.38 canacar 488: return 1;
489: }
490:
1.57 lum 491: if (check_termcap()) {
1.38 canacar 492: rawmode = 1;
493: interactive = 0;
494: }
495:
496: setup_term(maxlines);
497:
498: if (rawmode && countmax == 0)
499: countmax = 1;
500:
501: gotsig_alarm = 1;
1.35 deraadt 502:
1.38 canacar 503: engine_loop(countmax);
1.35 deraadt 504:
1.38 canacar 505: return 0;
1.1 deraadt 506: }
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