| 1 |
/* |
| 2 |
* i-scream central monitoring system |
| 3 |
* http://www.i-scream.org |
| 4 |
* Copyright (C) 2000-2004 i-scream |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or |
| 7 |
* modify it under the terms of the GNU General Public License |
| 8 |
* as published by the Free Software Foundation; either version 2 |
| 9 |
* of the License, or (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 19 |
* |
| 20 |
* $Id: statgrab.c,v 1.17 2004/01/19 16:49:23 tdb Exp $ |
| 21 |
*/ |
| 22 |
|
| 23 |
#ifdef HAVE_CONFIG_H |
| 24 |
#include "config.h" |
| 25 |
#endif |
| 26 |
|
| 27 |
#include <statgrab.h> |
| 28 |
#include <string.h> |
| 29 |
#include <stdio.h> |
| 30 |
#include <stdarg.h> |
| 31 |
#include <stdlib.h> |
| 32 |
#include <unistd.h> |
| 33 |
|
| 34 |
typedef enum { |
| 35 |
LONG_LONG = 0, |
| 36 |
TIME_T, |
| 37 |
FLOAT, |
| 38 |
DOUBLE, |
| 39 |
STRING, |
| 40 |
INT, |
| 41 |
DUPLEX |
| 42 |
} stat_type; |
| 43 |
|
| 44 |
typedef enum { |
| 45 |
DISPLAY_LINUX = 0, |
| 46 |
DISPLAY_BSD, |
| 47 |
DISPLAY_MRTG, |
| 48 |
DISPLAY_PLAIN |
| 49 |
} display_mode_type; |
| 50 |
|
| 51 |
typedef enum { |
| 52 |
REPEAT_NONE = 0, |
| 53 |
REPEAT_ONCE, |
| 54 |
REPEAT_FOREVER |
| 55 |
} repeat_mode_type; |
| 56 |
|
| 57 |
typedef struct { |
| 58 |
char *name; |
| 59 |
stat_type type; |
| 60 |
void *stat; |
| 61 |
} stat; |
| 62 |
|
| 63 |
stat *stats = NULL; |
| 64 |
int num_stats = 0; |
| 65 |
int alloc_stats = 0; |
| 66 |
#define INCREMENT_STATS 64 |
| 67 |
|
| 68 |
display_mode_type display_mode = DISPLAY_LINUX; |
| 69 |
repeat_mode_type repeat_mode = REPEAT_NONE; |
| 70 |
int repeat_time = 1; |
| 71 |
int use_cpu_percent = 0; |
| 72 |
int use_diffs = 0; |
| 73 |
|
| 74 |
/* Exit with an error message. */ |
| 75 |
void die(const char *s) { |
| 76 |
fprintf(stderr, "fatal: %s\n", s); |
| 77 |
exit(1); |
| 78 |
} |
| 79 |
|
| 80 |
/* Remove all the recorded stats. */ |
| 81 |
void clear_stats() { |
| 82 |
int i; |
| 83 |
|
| 84 |
for (i = 0; i < num_stats; i++) |
| 85 |
free(stats[i].name); |
| 86 |
num_stats = 0; |
| 87 |
} |
| 88 |
|
| 89 |
/* Add a stat. The varargs make up the name, joined with dots; the name is |
| 90 |
terminated with a NULL. */ |
| 91 |
void add_stat(stat_type type, void *stat, ...) { |
| 92 |
va_list ap; |
| 93 |
int len = 0; |
| 94 |
char *name, *p; |
| 95 |
|
| 96 |
/* Figure out how long the name will be, including dots and trailing |
| 97 |
\0. */ |
| 98 |
va_start(ap, stat); |
| 99 |
while (1) { |
| 100 |
const char *part = va_arg(ap, const char *); |
| 101 |
if (part == NULL) |
| 102 |
break; |
| 103 |
len += 1 + strlen(part); |
| 104 |
} |
| 105 |
va_end(ap); |
| 106 |
|
| 107 |
/* Paste the name together. */ |
| 108 |
name = malloc(len); |
| 109 |
if (name == NULL) |
| 110 |
die("out of memory"); |
| 111 |
p = name; |
| 112 |
va_start(ap, stat); |
| 113 |
while (1) { |
| 114 |
const char *part = va_arg(ap, const char *); |
| 115 |
int partlen; |
| 116 |
if (part == NULL) |
| 117 |
break; |
| 118 |
partlen = strlen(part); |
| 119 |
memcpy(p, part, partlen); |
| 120 |
p += partlen; |
| 121 |
*p++ = '.'; |
| 122 |
} |
| 123 |
va_end(ap); |
| 124 |
*--p = '\0'; |
| 125 |
|
| 126 |
/* Replace spaces with underscores. */ |
| 127 |
for (p = name; *p != '\0'; p++) { |
| 128 |
if (*p == ' ') |
| 129 |
*p = '_'; |
| 130 |
} |
| 131 |
|
| 132 |
/* Stretch the stats array if necessary. */ |
| 133 |
if (num_stats >= alloc_stats) { |
| 134 |
alloc_stats += INCREMENT_STATS; |
| 135 |
stats = realloc(stats, alloc_stats * sizeof *stats); |
| 136 |
if (stats == NULL) |
| 137 |
die("out of memory"); |
| 138 |
} |
| 139 |
|
| 140 |
stats[num_stats].name = name; |
| 141 |
stats[num_stats].type = type; |
| 142 |
stats[num_stats].stat = stat; |
| 143 |
++num_stats; |
| 144 |
} |
| 145 |
|
| 146 |
/* Compare two stats by name for qsort and bsearch. */ |
| 147 |
int stats_compare(const void *a, const void *b) { |
| 148 |
return strcmp(((stat *)a)->name, ((stat *)b)->name); |
| 149 |
} |
| 150 |
|
| 151 |
/* Compare up to the length of the key for bsearch. */ |
| 152 |
int stats_compare_prefix(const void *key, const void *item) { |
| 153 |
const char *kn = ((stat *)key)->name; |
| 154 |
const char *in = ((stat *)item)->name; |
| 155 |
|
| 156 |
return strncmp(kn, in, strlen(kn)); |
| 157 |
} |
| 158 |
|
| 159 |
void populate_const() { |
| 160 |
static int zero = 0; |
| 161 |
|
| 162 |
/* Constants, for use with MRTG mode. */ |
| 163 |
add_stat(INT, &zero, "const", "0", NULL); |
| 164 |
} |
| 165 |
|
| 166 |
void populate_cpu() { |
| 167 |
if (use_cpu_percent) { |
| 168 |
cpu_percent_t *cpu_p = cpu_percent_usage(); |
| 169 |
|
| 170 |
if (cpu_p != NULL) { |
| 171 |
add_stat(FLOAT, &cpu_p->user, |
| 172 |
"cpu", "user", NULL); |
| 173 |
add_stat(FLOAT, &cpu_p->kernel, |
| 174 |
"cpu", "kernel", NULL); |
| 175 |
add_stat(FLOAT, &cpu_p->idle, |
| 176 |
"cpu", "idle", NULL); |
| 177 |
add_stat(FLOAT, &cpu_p->iowait, |
| 178 |
"cpu", "iowait", NULL); |
| 179 |
add_stat(FLOAT, &cpu_p->swap, |
| 180 |
"cpu", "swap", NULL); |
| 181 |
add_stat(FLOAT, &cpu_p->nice, |
| 182 |
"cpu", "nice", NULL); |
| 183 |
add_stat(TIME_T, &cpu_p->time_taken, |
| 184 |
"cpu", "time_taken", NULL); |
| 185 |
} |
| 186 |
} else { |
| 187 |
cpu_states_t *cpu_s; |
| 188 |
|
| 189 |
cpu_s = use_diffs ? get_cpu_diff() : get_cpu_totals(); |
| 190 |
if (cpu_s != NULL) { |
| 191 |
add_stat(LONG_LONG, &cpu_s->user, |
| 192 |
"cpu", "user", NULL); |
| 193 |
add_stat(LONG_LONG, &cpu_s->kernel, |
| 194 |
"cpu", "kernel", NULL); |
| 195 |
add_stat(LONG_LONG, &cpu_s->idle, |
| 196 |
"cpu", "idle", NULL); |
| 197 |
add_stat(LONG_LONG, &cpu_s->iowait, |
| 198 |
"cpu", "iowait", NULL); |
| 199 |
add_stat(LONG_LONG, &cpu_s->swap, |
| 200 |
"cpu", "swap", NULL); |
| 201 |
add_stat(LONG_LONG, &cpu_s->nice, |
| 202 |
"cpu", "nice", NULL); |
| 203 |
add_stat(LONG_LONG, &cpu_s->total, |
| 204 |
"cpu", "total", NULL); |
| 205 |
add_stat(TIME_T, &cpu_s->systime, |
| 206 |
"cpu", "systime", NULL); |
| 207 |
} |
| 208 |
} |
| 209 |
} |
| 210 |
|
| 211 |
void populate_mem() { |
| 212 |
mem_stat_t *mem = get_memory_stats(); |
| 213 |
|
| 214 |
if (mem != NULL) { |
| 215 |
add_stat(LONG_LONG, &mem->total, "mem", "total", NULL); |
| 216 |
add_stat(LONG_LONG, &mem->free, "mem", "free", NULL); |
| 217 |
add_stat(LONG_LONG, &mem->used, "mem", "used", NULL); |
| 218 |
add_stat(LONG_LONG, &mem->cache, "mem", "cache", NULL); |
| 219 |
} |
| 220 |
} |
| 221 |
|
| 222 |
void populate_load() { |
| 223 |
load_stat_t *load = get_load_stats(); |
| 224 |
|
| 225 |
if (load != NULL) { |
| 226 |
add_stat(DOUBLE, &load->min1, "load", "min1", NULL); |
| 227 |
add_stat(DOUBLE, &load->min5, "load", "min5", NULL); |
| 228 |
add_stat(DOUBLE, &load->min15, "load", "min15", NULL); |
| 229 |
} |
| 230 |
} |
| 231 |
|
| 232 |
void populate_user() { |
| 233 |
user_stat_t *user = get_user_stats(); |
| 234 |
|
| 235 |
if (user != NULL) { |
| 236 |
add_stat(INT, &user->num_entries, "user", "num", NULL); |
| 237 |
add_stat(STRING, &user->name_list, "user", "names", NULL); |
| 238 |
} |
| 239 |
} |
| 240 |
|
| 241 |
void populate_swap() { |
| 242 |
swap_stat_t *swap = get_swap_stats(); |
| 243 |
|
| 244 |
if (swap != NULL) { |
| 245 |
add_stat(LONG_LONG, &swap->total, "swap", "total", NULL); |
| 246 |
add_stat(LONG_LONG, &swap->used, "swap", "used", NULL); |
| 247 |
add_stat(LONG_LONG, &swap->free, "swap", "free", NULL); |
| 248 |
} |
| 249 |
} |
| 250 |
|
| 251 |
void populate_general() { |
| 252 |
general_stat_t *gen = get_general_stats(); |
| 253 |
|
| 254 |
if (gen != NULL) { |
| 255 |
add_stat(STRING, &gen->os_name, |
| 256 |
"general", "os_name", NULL); |
| 257 |
add_stat(STRING, &gen->os_release, |
| 258 |
"general", "os_release", NULL); |
| 259 |
add_stat(STRING, &gen->os_version, |
| 260 |
"general", "os_version", NULL); |
| 261 |
add_stat(STRING, &gen->platform, "general", "platform", NULL); |
| 262 |
add_stat(STRING, &gen->hostname, "general", "hostname", NULL); |
| 263 |
add_stat(TIME_T, &gen->uptime, "general", "uptime", NULL); |
| 264 |
} |
| 265 |
} |
| 266 |
|
| 267 |
void populate_fs() { |
| 268 |
int n, i; |
| 269 |
disk_stat_t *disk = get_disk_stats(&n); |
| 270 |
|
| 271 |
if (disk != NULL) { |
| 272 |
for (i = 0; i < n; i++) { |
| 273 |
/* FIXME it'd be nicer if libstatgrab did this */ |
| 274 |
char *buf, *name, *p; |
| 275 |
const char *device = disk[i].device_name; |
| 276 |
|
| 277 |
if (strcmp(device, "/") == 0) |
| 278 |
device = "root"; |
| 279 |
|
| 280 |
buf = strdup(device); |
| 281 |
if (buf == NULL) |
| 282 |
die("out of memory"); |
| 283 |
|
| 284 |
name = buf; |
| 285 |
if (strlen(name) == 2 && name[1] == ':') |
| 286 |
name[1] = '\0'; |
| 287 |
if (strncmp(name, "/dev/", 5) == 0) |
| 288 |
name += 5; |
| 289 |
while ((p = strchr(name, '/')) != NULL) |
| 290 |
*p = '_'; |
| 291 |
|
| 292 |
add_stat(STRING, &disk[i].device_name, |
| 293 |
"fs", name, "device_name", NULL); |
| 294 |
add_stat(STRING, &disk[i].fs_type, |
| 295 |
"fs", name, "fs_type", NULL); |
| 296 |
add_stat(STRING, &disk[i].mnt_point, |
| 297 |
"fs", name, "mnt_point", NULL); |
| 298 |
add_stat(LONG_LONG, &disk[i].size, |
| 299 |
"fs", name, "size", NULL); |
| 300 |
add_stat(LONG_LONG, &disk[i].used, |
| 301 |
"fs", name, "used", NULL); |
| 302 |
add_stat(LONG_LONG, &disk[i].avail, |
| 303 |
"fs", name, "avail", NULL); |
| 304 |
add_stat(LONG_LONG, &disk[i].total_inodes, |
| 305 |
"fs", name, "total_inodes", NULL); |
| 306 |
add_stat(LONG_LONG, &disk[i].used_inodes, |
| 307 |
"fs", name, "used_inodes", NULL); |
| 308 |
add_stat(LONG_LONG, &disk[i].free_inodes, |
| 309 |
"fs", name, "free_inodes", NULL); |
| 310 |
|
| 311 |
free(buf); |
| 312 |
} |
| 313 |
} |
| 314 |
} |
| 315 |
|
| 316 |
void populate_disk() { |
| 317 |
int n, i; |
| 318 |
diskio_stat_t *diskio; |
| 319 |
|
| 320 |
diskio = use_diffs ? get_diskio_stats_diff(&n) : get_diskio_stats(&n); |
| 321 |
if (diskio != NULL) { |
| 322 |
for (i = 0; i < n; i++) { |
| 323 |
const char *name = diskio[i].disk_name; |
| 324 |
|
| 325 |
add_stat(STRING, &diskio[i].disk_name, |
| 326 |
"disk", name, "disk_name", NULL); |
| 327 |
add_stat(LONG_LONG, &diskio[i].read_bytes, |
| 328 |
"disk", name, "read_bytes", NULL); |
| 329 |
add_stat(LONG_LONG, &diskio[i].write_bytes, |
| 330 |
"disk", name, "write_bytes", NULL); |
| 331 |
add_stat(TIME_T, &diskio[i].systime, |
| 332 |
"disk", name, "systime", NULL); |
| 333 |
} |
| 334 |
} |
| 335 |
} |
| 336 |
|
| 337 |
void populate_proc() { |
| 338 |
process_stat_t *proc = get_process_stats(); |
| 339 |
|
| 340 |
if (proc != NULL) { |
| 341 |
add_stat(INT, &proc->total, "proc", "total", NULL); |
| 342 |
add_stat(INT, &proc->running, "proc", "running", NULL); |
| 343 |
add_stat(INT, &proc->sleeping, "proc", "sleeping", NULL); |
| 344 |
add_stat(INT, &proc->stopped, "proc", "stopped", NULL); |
| 345 |
add_stat(INT, &proc->zombie, "proc", "zombie", NULL); |
| 346 |
} |
| 347 |
} |
| 348 |
|
| 349 |
void populate_net() { |
| 350 |
int n, i; |
| 351 |
network_stat_t *net; |
| 352 |
network_iface_stat_t *iface; |
| 353 |
|
| 354 |
net = use_diffs ? get_network_stats_diff(&n) : get_network_stats(&n); |
| 355 |
if (net != NULL) { |
| 356 |
for (i = 0; i < n; i++) { |
| 357 |
const char *name = net[i].interface_name; |
| 358 |
|
| 359 |
add_stat(STRING, &net[i].interface_name, |
| 360 |
"net", name, "interface_name", NULL); |
| 361 |
add_stat(LONG_LONG, &net[i].tx, |
| 362 |
"net", name, "tx", NULL); |
| 363 |
add_stat(LONG_LONG, &net[i].rx, |
| 364 |
"net", name, "rx", NULL); |
| 365 |
add_stat(TIME_T, &net[i].systime, |
| 366 |
"net", name, "systime", NULL); |
| 367 |
} |
| 368 |
} |
| 369 |
|
| 370 |
iface = get_network_iface_stats(&n); |
| 371 |
if (iface != NULL) { |
| 372 |
for (i = 0; i < n; i++) { |
| 373 |
const char *name = iface[i].interface_name; |
| 374 |
|
| 375 |
add_stat(INT, &iface[i].speed, |
| 376 |
"net", name, "speed", NULL); |
| 377 |
add_stat(DUPLEX, &iface[i].dup, |
| 378 |
"net", name, "duplex", NULL); |
| 379 |
} |
| 380 |
} |
| 381 |
} |
| 382 |
|
| 383 |
void populate_page() { |
| 384 |
page_stat_t *page; |
| 385 |
|
| 386 |
page = use_diffs ? get_page_stats_diff() : get_page_stats(); |
| 387 |
if (page != NULL) { |
| 388 |
add_stat(LONG_LONG, &page->pages_pagein, "page", "in", NULL); |
| 389 |
add_stat(LONG_LONG, &page->pages_pageout, "page", "out", NULL); |
| 390 |
add_stat(TIME_T, &page->systime, "page", "systime", NULL); |
| 391 |
} |
| 392 |
} |
| 393 |
|
| 394 |
typedef struct { |
| 395 |
const char *name; |
| 396 |
void (*populate)(); |
| 397 |
int interesting; |
| 398 |
} toplevel; |
| 399 |
toplevel toplevels[] = { |
| 400 |
{"const.", populate_const, 0}, |
| 401 |
{"cpu.", populate_cpu, 0}, |
| 402 |
{"mem.", populate_mem, 0}, |
| 403 |
{"load.", populate_load, 0}, |
| 404 |
{"user.", populate_user, 0}, |
| 405 |
{"swap.", populate_swap, 0}, |
| 406 |
{"general.", populate_general, 0}, |
| 407 |
{"fs.", populate_fs, 0}, |
| 408 |
{"disk.", populate_disk, 0}, |
| 409 |
{"proc.", populate_proc, 0}, |
| 410 |
{"net.", populate_net, 0}, |
| 411 |
{"page.", populate_page, 0}, |
| 412 |
{NULL, NULL, 0} |
| 413 |
}; |
| 414 |
|
| 415 |
/* Set the "interesting" flag on the sections that we actually need to |
| 416 |
fetch. */ |
| 417 |
void select_interesting(int argc, char **argv) { |
| 418 |
toplevel *t; |
| 419 |
|
| 420 |
if (argc == 0) { |
| 421 |
for (t = &toplevels[0]; t->name != NULL; t++) |
| 422 |
t->interesting = 1; |
| 423 |
} else { |
| 424 |
int i; |
| 425 |
|
| 426 |
for (i = 0; i < argc; i++) { |
| 427 |
for (t = &toplevels[0]; t->name != NULL; t++) { |
| 428 |
if (strncmp(argv[i], t->name, |
| 429 |
strlen(t->name)) == 0) { |
| 430 |
t->interesting = 1; |
| 431 |
break; |
| 432 |
} |
| 433 |
} |
| 434 |
} |
| 435 |
} |
| 436 |
} |
| 437 |
|
| 438 |
/* Clear and rebuild the stats array. */ |
| 439 |
void get_stats() { |
| 440 |
toplevel *t; |
| 441 |
|
| 442 |
clear_stats(); |
| 443 |
|
| 444 |
for (t = &toplevels[0]; t->name != NULL; t++) { |
| 445 |
if (t->interesting) |
| 446 |
t->populate(); |
| 447 |
} |
| 448 |
|
| 449 |
qsort(stats, num_stats, sizeof *stats, stats_compare); |
| 450 |
} |
| 451 |
|
| 452 |
/* Print the value of a stat. */ |
| 453 |
void print_stat_value(const stat *s) { |
| 454 |
void *v = s->stat; |
| 455 |
|
| 456 |
switch (s->type) { |
| 457 |
case LONG_LONG: |
| 458 |
printf("%lld", *(long long *)v); |
| 459 |
break; |
| 460 |
case TIME_T: |
| 461 |
/* FIXME option for formatted time? */ |
| 462 |
printf("%ld", *(time_t *)v); |
| 463 |
break; |
| 464 |
case FLOAT: |
| 465 |
printf("%f", *(float *)v); |
| 466 |
break; |
| 467 |
case DOUBLE: |
| 468 |
printf("%f", *(double *)v); |
| 469 |
break; |
| 470 |
case STRING: |
| 471 |
/* FIXME escaping? */ |
| 472 |
printf("%s", *(char **)v); |
| 473 |
break; |
| 474 |
case INT: |
| 475 |
printf("%d", *(int *)v); |
| 476 |
break; |
| 477 |
case DUPLEX: |
| 478 |
switch (*(duplex *) v) { |
| 479 |
case FULL_DUPLEX: |
| 480 |
printf("full"); |
| 481 |
break; |
| 482 |
case HALF_DUPLEX: |
| 483 |
printf("half"); |
| 484 |
break; |
| 485 |
default: |
| 486 |
printf("unknown"); |
| 487 |
break; |
| 488 |
} |
| 489 |
break; |
| 490 |
} |
| 491 |
} |
| 492 |
|
| 493 |
/* Print the name and value of a stat. */ |
| 494 |
void print_stat(const stat *s) { |
| 495 |
switch (display_mode) { |
| 496 |
case DISPLAY_LINUX: |
| 497 |
printf("%s = ", s->name); |
| 498 |
break; |
| 499 |
case DISPLAY_BSD: |
| 500 |
printf("%s: ", s->name); |
| 501 |
break; |
| 502 |
case DISPLAY_MRTG: |
| 503 |
case DISPLAY_PLAIN: |
| 504 |
break; |
| 505 |
} |
| 506 |
print_stat_value(s); |
| 507 |
printf("\n"); |
| 508 |
} |
| 509 |
|
| 510 |
/* Print stats as specified on the provided command line. */ |
| 511 |
void print_stats(int argc, char **argv) { |
| 512 |
int i; |
| 513 |
|
| 514 |
if (argc == optind) { |
| 515 |
/* Print all stats. */ |
| 516 |
for (i = 0; i < num_stats; i++) |
| 517 |
print_stat(&stats[i]); |
| 518 |
} else { |
| 519 |
/* Print selected stats. */ |
| 520 |
for (i = optind; i < argc; i++) { |
| 521 |
char *name = argv[i]; |
| 522 |
stat key; |
| 523 |
const stat *s, *end; |
| 524 |
int (*compare)(const void *, const void *); |
| 525 |
|
| 526 |
key.name = name; |
| 527 |
if (name[strlen(name) - 1] == '.') |
| 528 |
compare = stats_compare_prefix; |
| 529 |
else |
| 530 |
compare = stats_compare; |
| 531 |
|
| 532 |
s = (const stat *)bsearch(&key, stats, num_stats, |
| 533 |
sizeof *stats, compare); |
| 534 |
if (s == NULL) { |
| 535 |
printf("Unknown stat %s\n", name); |
| 536 |
continue; |
| 537 |
} |
| 538 |
|
| 539 |
/* Find the range of stats the user wanted. */ |
| 540 |
for (; s >= stats; s--) { |
| 541 |
if (compare(&key, s) != 0) |
| 542 |
break; |
| 543 |
} |
| 544 |
s++; |
| 545 |
for (end = s; end < &stats[num_stats]; end++) { |
| 546 |
if (compare(&key, end) != 0) |
| 547 |
break; |
| 548 |
} |
| 549 |
|
| 550 |
/* And print them. */ |
| 551 |
for (; s < end; s++) { |
| 552 |
print_stat(s); |
| 553 |
} |
| 554 |
} |
| 555 |
} |
| 556 |
} |
| 557 |
|
| 558 |
void usage() { |
| 559 |
printf("Usage: statgrab [OPTION]... [STAT]...\n" |
| 560 |
"Display system statistics.\n" |
| 561 |
"\n" |
| 562 |
"If no STATs are given, all will be displayed. Specify 'STAT.' to display all\n" |
| 563 |
"statistics starting with that prefix.\n" |
| 564 |
"\n"); |
| 565 |
printf(" -l Linux sysctl-style output (default)\n" |
| 566 |
" -b BSD sysctl-style output\n" |
| 567 |
" -m MRTG-compatible output\n" |
| 568 |
" -u Plain output (only show values)\n" |
| 569 |
" -n Display cumulative stats once (default)\n" |
| 570 |
" -s Display stat differences repeatedly\n" |
| 571 |
" -o Display stat differences once\n" |
| 572 |
" -t DELAY When repeating, wait DELAY seconds between updates (default 1)\n" |
| 573 |
" -p Display CPU usage differences as percentages rather than\n" |
| 574 |
" absolute values\n" |
| 575 |
"\n"); |
| 576 |
printf("Version %s - report bugs to <%s>.\n", |
| 577 |
PACKAGE_VERSION, PACKAGE_BUGREPORT); |
| 578 |
exit(1); |
| 579 |
} |
| 580 |
|
| 581 |
int main(int argc, char **argv) { |
| 582 |
opterr = 0; |
| 583 |
while (1) { |
| 584 |
int c = getopt(argc, argv, "lbmunsot:p"); |
| 585 |
if (c == -1) |
| 586 |
break; |
| 587 |
switch (c) { |
| 588 |
case 'l': |
| 589 |
display_mode = DISPLAY_LINUX; |
| 590 |
break; |
| 591 |
case 'b': |
| 592 |
display_mode = DISPLAY_BSD; |
| 593 |
break; |
| 594 |
case 'm': |
| 595 |
display_mode = DISPLAY_MRTG; |
| 596 |
break; |
| 597 |
case 'u': |
| 598 |
display_mode = DISPLAY_PLAIN; |
| 599 |
break; |
| 600 |
case 'n': |
| 601 |
repeat_mode = REPEAT_NONE; |
| 602 |
break; |
| 603 |
case 's': |
| 604 |
repeat_mode = REPEAT_FOREVER; |
| 605 |
break; |
| 606 |
case 'o': |
| 607 |
repeat_mode = REPEAT_ONCE; |
| 608 |
break; |
| 609 |
case 't': |
| 610 |
repeat_time = atoi(optarg); |
| 611 |
break; |
| 612 |
case 'p': |
| 613 |
use_cpu_percent = 1; |
| 614 |
break; |
| 615 |
default: |
| 616 |
usage(); |
| 617 |
} |
| 618 |
} |
| 619 |
|
| 620 |
if (display_mode == DISPLAY_MRTG) { |
| 621 |
if ((argc - optind) != 2) |
| 622 |
die("mrtg mode: must specify exactly two stats"); |
| 623 |
if (repeat_mode == REPEAT_FOREVER) |
| 624 |
die("mrtg mode: cannot repeat display"); |
| 625 |
} |
| 626 |
|
| 627 |
if (use_cpu_percent && repeat_mode == REPEAT_NONE) |
| 628 |
die("CPU percentage usage display requires stat differences"); |
| 629 |
|
| 630 |
if (repeat_mode == REPEAT_NONE) |
| 631 |
use_diffs = 0; |
| 632 |
else |
| 633 |
use_diffs = 1; |
| 634 |
|
| 635 |
select_interesting(argc - optind, &argv[optind]); |
| 636 |
|
| 637 |
/* We don't care if statgrab_init fails, because we can just display |
| 638 |
the statistics that can be read as non-root. */ |
| 639 |
statgrab_init(); |
| 640 |
if (statgrab_drop_privileges() != 0) |
| 641 |
die("Failed to drop setuid/setgid privileges"); |
| 642 |
|
| 643 |
switch (repeat_mode) { |
| 644 |
case REPEAT_NONE: |
| 645 |
get_stats(); |
| 646 |
print_stats(argc, argv); |
| 647 |
break; |
| 648 |
case REPEAT_ONCE: |
| 649 |
get_stats(); |
| 650 |
sleep(repeat_time); |
| 651 |
get_stats(); |
| 652 |
print_stats(argc, argv); |
| 653 |
break; |
| 654 |
case REPEAT_FOREVER: |
| 655 |
while (1) { |
| 656 |
get_stats(); |
| 657 |
print_stats(argc, argv); |
| 658 |
printf("\n"); |
| 659 |
sleep(repeat_time); |
| 660 |
} |
| 661 |
} |
| 662 |
|
| 663 |
if (display_mode == DISPLAY_MRTG) { |
| 664 |
printf("\n"); |
| 665 |
printf("statgrab\n"); |
| 666 |
} |
| 667 |
|
| 668 |
return 0; |
| 669 |
} |
| 670 |
|
