1 /* $NetBSD: envstat.c,v 1.17 2004/02/02 10:36:19 soren Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Bill Squier. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #include <sys/cdefs.h> 40 #ifndef lint 41 __RCSID("$NetBSD: envstat.c,v 1.17 2004/02/02 10:36:19 soren Exp $"); 42 #endif 43 44 #include <fcntl.h> 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <string.h> 48 #include <unistd.h> 49 #include <err.h> 50 #include <paths.h> 51 52 #define ENVSYSUNITNAMES 53 #include <sys/envsys.h> 54 #include <sys/ioctl.h> 55 56 int main(int, char **); 57 void listsensors(envsys_basic_info_t *, size_t); 58 size_t numsensors(int); 59 void fillsensors(int, envsys_tre_data_t *, envsys_basic_info_t *, size_t); 60 size_t longestname(envsys_basic_info_t *, size_t); 61 int marksensors(envsys_basic_info_t *, int *, char *, size_t); 62 int strtosnum(envsys_basic_info_t *, const char *, size_t); 63 void header(size_t, int, envsys_basic_info_t *, const int * const, size_t); 64 void values(size_t, int, envsys_tre_data_t *, const int * const, size_t); 65 void usage(void); 66 67 int rflag = 0; 68 69 int 70 main(int argc, char **argv) 71 { 72 int c, fd, ls, celsius; 73 size_t ns; 74 size_t interval, width, headrep, headcnt; 75 envsys_tre_data_t *etds; 76 envsys_basic_info_t *ebis; 77 int *cetds; 78 char *sensors; 79 const char *dev; 80 81 fd = -1; 82 ls = 0; 83 celsius = 1; 84 interval = 0; 85 width = 0; 86 sensors = NULL; 87 headrep = 22; 88 89 while ((c = getopt(argc, argv, "cfi:ln:rs:w:r")) != -1) { 90 switch(c) { 91 case 'r': 92 rflag= 1; 93 break; 94 case 'i': /* wait time between displays */ 95 interval = atoi(optarg); 96 break; 97 case 'w': /* minimum column width */ 98 width = atoi(optarg); 99 break; 100 case 'l': /* list sensor names */ 101 ls = 1; 102 break; 103 case 'n': /* repeat header every headrep lines */ 104 headrep = atoi(optarg); 105 break; 106 case 's': /* restrict display to named sensors */ 107 sensors = (char *)malloc(strlen(optarg) + 1); 108 if (sensors == NULL) 109 exit(1); 110 strcpy(sensors, optarg); 111 break; 112 case 'f': /* display temp in degF */ 113 celsius = 0; 114 break; 115 case '?': 116 default: 117 usage(); 118 /* NOTREACHED */ 119 } 120 } 121 122 if (optind < argc) 123 dev = argv[optind]; 124 else 125 dev = _PATH_SYSMON; 126 127 if ((fd = open(dev, O_RDONLY)) == -1) 128 err(1, "unable to open %s", dev); 129 130 /* 131 * Determine number of sensors, allocate and fill arrays with 132 * initial information. Determine column width 133 */ 134 if ((ns = numsensors(fd)) == 0) 135 errx(1, "No sensors found"); 136 137 cetds = (int *)malloc(ns * sizeof(int)); 138 etds = (envsys_tre_data_t *)malloc(ns * sizeof(envsys_tre_data_t)); 139 ebis = (envsys_basic_info_t *)malloc(ns * sizeof(envsys_basic_info_t)); 140 141 if ((cetds == NULL) || (etds == NULL) || (ebis == NULL)) 142 err(1, "Out of memory"); 143 144 fillsensors(fd, etds, ebis, ns); 145 146 if (ls) { 147 listsensors(ebis, ns); 148 exit(0); 149 } 150 151 152 #define MAX(x, y) (((x) > (y)) ? (x) : (y)) 153 if (!width) { 154 width = longestname(ebis, ns); 155 width = MAX(((79 - ns) / ns), width); 156 } 157 158 /* Mark which sensor numbers are to be displayed */ 159 if (marksensors(ebis, cetds, sensors, ns) == -1) 160 exit(1); 161 162 if (rflag) { 163 int i; 164 165 for (i = 0 ; i < ns ; i++) { 166 if ((etds[i].validflags & ENVSYS_FCURVALID) == 0) 167 continue; 168 169 if (ebis[i].units == ENVSYS_INDICATOR && 170 etds[i].cur.data_s == 0) 171 continue; 172 173 printf("%*.*s", (int)width, (int)width, ebis[i].desc); 174 /* different units need some magic */ 175 switch (ebis[i].units) 176 { 177 case ENVSYS_INDICATOR: 178 break; 179 case ENVSYS_INTEGER: 180 printf(": %10d", etds[i].cur.data_s); 181 break; 182 case ENVSYS_STEMP: { 183 double temp = (etds[i].cur.data_s / 1000000.0) 184 - 273.15; 185 if (celsius) 186 printf(": %10.3f degC", temp); 187 else { 188 temp = (9.0 / 5.0) * temp + 32.0; 189 printf(": %10.3f degF", temp); 190 } 191 break; 192 } 193 case ENVSYS_SFANRPM: 194 printf(": %10u RPM", etds[i].cur.data_us); 195 break; 196 default: 197 printf(": %10.3f %s", 198 etds[i].cur.data_s / 1000000.0, 199 envsysunitnames[ebis[i].units]); 200 break; 201 } 202 203 if (etds[i].validflags & ENVSYS_FFRACVALID) { 204 printf(" (%5.2f%%)", 205 (etds[i].cur.data_s * 100.0) / 206 etds[i].max.data_s); 207 } 208 209 printf("\n"); 210 } 211 exit(0); 212 } 213 214 215 216 /* If we didn't specify an interval value, print the sensors once */ 217 if (!interval) { 218 if (headrep) 219 header(width, celsius, ebis, cetds, ns); 220 values(width, celsius, etds, cetds, ns); 221 222 exit (0); 223 } 224 225 headcnt = 0; 226 if (headrep) 227 header(width, celsius, ebis, cetds, ns); 228 229 for (;;) { 230 values(width, celsius, etds, cetds, ns); 231 if (headrep && (++headcnt == headrep)) { 232 headcnt = 0; 233 header(width, celsius, ebis, cetds, ns); 234 } 235 236 sleep(interval); 237 238 fillsensors(fd, etds, ebis, ns); 239 } 240 241 /* NOTREACHED */ 242 return (0); 243 } 244 245 246 /* 247 * pre: cetds[i] != 0 iff sensor i should appear in the output 248 * post: a column header line is displayed on stdout 249 */ 250 void 251 header(size_t width, int celsius, envsys_basic_info_t *ebis, 252 const int * const cetds, size_t ns) 253 { 254 int i; 255 const char *s; 256 257 /* sensor names */ 258 for (i = 0; i < ns; ++i) 259 if (cetds[i]) 260 printf(" %*.*s", (int)width, (int)width, ebis[i].desc); 261 262 printf("\n"); 263 264 /* units */ 265 for (i = 0; i < ns; ++i) 266 if (cetds[i]) { 267 if ((ebis[i].units == ENVSYS_STEMP) && 268 !celsius) 269 s = "degF"; 270 else if (ebis[i].units >= ENVSYS_NSENSORS) 271 s = envsysunitnames[ENVSYS_NSENSORS]; 272 else 273 s = envsysunitnames[ebis[i].units]; 274 275 printf(" %*.*s", (int)width, (int)width, s); 276 } 277 printf("\n"); 278 } 279 280 void 281 values(size_t width, int celsius, envsys_tre_data_t *etds, 282 const int * const cetds, size_t ns) 283 { 284 int i; 285 double temp; 286 287 for (i = 0; i < ns; ++i) 288 if (cetds[i]) { 289 290 /* * sensors without valid data */ 291 if ((etds[i].validflags & ENVSYS_FCURVALID) == 0) { 292 printf(" %*.*s", (int)width, (int)width, "*"); 293 continue; 294 } 295 296 switch(etds[i].units) { 297 case ENVSYS_INDICATOR: 298 printf(" %*.*s", (int)width, (int)width, 299 etds[i].cur.data_us ? "ON" : "OFF"); 300 break; 301 case ENVSYS_STEMP: 302 temp = (etds[i].cur.data_us / 1000000.0) - 303 273.15; 304 if (!celsius) 305 temp = (9.0 / 5.0) * temp + 32.0; 306 printf(" %*.2f", (int)width, temp); 307 break; 308 case ENVSYS_SFANRPM: 309 printf(" %*u", (int)width, etds[i].cur.data_us); 310 break; 311 default: 312 printf(" %*.2f", (int)width, etds[i].cur.data_s / 313 1000000.0); 314 break; 315 } 316 } 317 printf("\n"); 318 } 319 320 321 /* 322 * post: displays usage on stderr 323 */ 324 void 325 usage(void) 326 { 327 328 (void)fprintf(stderr, "usage: %s [-cr] [-s s1,s2,...]", getprogname()); 329 (void)fprintf(stderr, " [-i interval] [-n headrep] [-w width]"); 330 (void)fprintf(stderr, " [device]\n"); 331 (void)fprintf(stderr, " %s -l [device]\n", getprogname()); 332 exit(1); 333 } 334 335 336 /* 337 * post: a list of sensor names supported by the device is displayed on stdout 338 */ 339 void 340 listsensors(envsys_basic_info_t *ebis, size_t ns) 341 { 342 int i; 343 344 for (i = 0; i < ns; ++i) 345 if (ebis[i].validflags & ENVSYS_FVALID) 346 printf("%s\n", ebis[i].desc); 347 } 348 349 350 /* 351 * pre: fd contains a valid file descriptor of an envsys(4) supporting device 352 * post: returns the number of valid sensors provided by the device 353 * or -1 on error 354 */ 355 size_t 356 numsensors(int fd) 357 { 358 int count = 0, valid = 1; 359 envsys_tre_data_t etd; 360 etd.sensor = 0; 361 362 while (valid) { 363 if (ioctl(fd, ENVSYS_GTREDATA, &etd) == -1) 364 err(1, "Can't get sensor data"); 365 366 valid = etd.validflags & ENVSYS_FVALID; 367 if (valid) 368 ++count; 369 370 ++etd.sensor; 371 } 372 373 return count; 374 } 375 376 /* 377 * pre: fd contains a valid file descriptor of an envsys(4) supporting device 378 * && ns is the number of sensors 379 * && etds and ebis are arrays of sufficient size 380 * post: returns 0 and etds and ebis arrays are filled with sensor info 381 * or returns -1 on failure 382 */ 383 void 384 fillsensors(int fd, envsys_tre_data_t *etds, envsys_basic_info_t *ebis, 385 size_t ns) 386 { 387 int i; 388 389 for (i = 0; i < ns; ++i) { 390 ebis[i].sensor = i; 391 if (ioctl(fd, ENVSYS_GTREINFO, &ebis[i]) == -1) 392 err(1, "Can't get sensor info for sensor %d", i); 393 394 etds[i].sensor = i; 395 if (ioctl(fd, ENVSYS_GTREDATA, &etds[i]) == -1) 396 err(1, "Can't get sensor data for sensor %d", i); 397 } 398 } 399 400 401 /* 402 * post: returns the strlen() of the longest sensor name 403 */ 404 size_t 405 longestname(envsys_basic_info_t *ebis, size_t ns) 406 { 407 size_t i, maxlen, cur; 408 409 maxlen = 0; 410 411 for (i = 0; i < ns; ++i) { 412 cur = strlen(ebis[i].desc); 413 if (cur > maxlen) 414 maxlen = cur; 415 } 416 417 return maxlen; 418 } 419 420 /* 421 * post: returns 0 and cetds[i] != 0 iff sensor i should appear in the output 422 * or returns -1 423 */ 424 int 425 marksensors(envsys_basic_info_t *ebis, int *cetds, char *sensors, size_t ns) 426 { 427 size_t i; 428 char *s; 429 430 if (sensors == NULL) { 431 /* No sensors specified, include them all */ 432 for (i = 0; i < ns; ++i) 433 cetds[i] = 1; 434 435 return 0; 436 } 437 438 /* Assume no sensors in display */ 439 memset(cetds, 0, ns * sizeof(int)); 440 441 s = strtok(sensors, ","); 442 while (s != NULL) { 443 int snum; 444 if ((snum = strtosnum(ebis, s, ns)) != -1) 445 cetds[snum] = 1; 446 else { 447 warnx("Unknown sensor %s", s); 448 return (-1); 449 } 450 451 s = strtok(NULL, ","); 452 } 453 454 /* Check if we have at least one sensor selected for output */ 455 for (i = 0; i < ns; ++i) 456 if (cetds[i] == 1) 457 return (0); 458 459 warnx("No sensors selected for display"); 460 return (-1); 461 } 462 463 464 /* 465 * returns -1 if s is not a valid sensor name for the device 466 * or the sensor number of a sensor which has that name 467 */ 468 int 469 strtosnum(envsys_basic_info_t *ebis, const char *s, size_t ns) 470 { 471 size_t i; 472 473 for (i = 0; i < ns; ++i) { 474 if((ebis[i].validflags & ENVSYS_FVALID) && 475 !strcmp(s, ebis[i].desc)) 476 return ebis[i].sensor; 477 } 478 479 return -1; 480 } 481