1 /*- 2 * SPDX-License-Identifier: Beerware 3 * 4 * ---------------------------------------------------------------------------- 5 * "THE BEER-WARE LICENSE" (Revision 42): 6 * <phk@FreeBSD.ORG> wrote this file. As long as you retain this notice you 7 * can do whatever you want with this stuff. If we meet some day, and you think 8 * this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp 9 * ---------------------------------------------------------------------------- 10 * 11 */ 12 13 #include <sys/cdefs.h> 14 __FBSDID("$FreeBSD$"); 15 16 #include <sys/capsicum.h> 17 #include <sys/ioctl.h> 18 #include <sys/queue.h> 19 #include <sys/ttycom.h> 20 21 #include <assert.h> 22 #include <capsicum_helpers.h> 23 #include <ctype.h> 24 #include <err.h> 25 #include <errno.h> 26 #include <math.h> 27 #include <stdio.h> 28 #include <stdlib.h> 29 #include <string.h> 30 #include <unistd.h> 31 32 #define NSTUDENT 100 33 #define NCONF 6 34 static double const studentpct[] = { 80, 90, 95, 98, 99, 99.5 }; 35 static double const student[NSTUDENT + 1][NCONF] = { 36 /* inf */ { 1.282, 1.645, 1.960, 2.326, 2.576, 3.090 }, 37 /* 1. */ { 3.078, 6.314, 12.706, 31.821, 63.657, 318.313 }, 38 /* 2. */ { 1.886, 2.920, 4.303, 6.965, 9.925, 22.327 }, 39 /* 3. */ { 1.638, 2.353, 3.182, 4.541, 5.841, 10.215 }, 40 /* 4. */ { 1.533, 2.132, 2.776, 3.747, 4.604, 7.173 }, 41 /* 5. */ { 1.476, 2.015, 2.571, 3.365, 4.032, 5.893 }, 42 /* 6. */ { 1.440, 1.943, 2.447, 3.143, 3.707, 5.208 }, 43 /* 7. */ { 1.415, 1.895, 2.365, 2.998, 3.499, 4.782 }, 44 /* 8. */ { 1.397, 1.860, 2.306, 2.896, 3.355, 4.499 }, 45 /* 9. */ { 1.383, 1.833, 2.262, 2.821, 3.250, 4.296 }, 46 /* 10. */ { 1.372, 1.812, 2.228, 2.764, 3.169, 4.143 }, 47 /* 11. */ { 1.363, 1.796, 2.201, 2.718, 3.106, 4.024 }, 48 /* 12. */ { 1.356, 1.782, 2.179, 2.681, 3.055, 3.929 }, 49 /* 13. */ { 1.350, 1.771, 2.160, 2.650, 3.012, 3.852 }, 50 /* 14. */ { 1.345, 1.761, 2.145, 2.624, 2.977, 3.787 }, 51 /* 15. */ { 1.341, 1.753, 2.131, 2.602, 2.947, 3.733 }, 52 /* 16. */ { 1.337, 1.746, 2.120, 2.583, 2.921, 3.686 }, 53 /* 17. */ { 1.333, 1.740, 2.110, 2.567, 2.898, 3.646 }, 54 /* 18. */ { 1.330, 1.734, 2.101, 2.552, 2.878, 3.610 }, 55 /* 19. */ { 1.328, 1.729, 2.093, 2.539, 2.861, 3.579 }, 56 /* 20. */ { 1.325, 1.725, 2.086, 2.528, 2.845, 3.552 }, 57 /* 21. */ { 1.323, 1.721, 2.080, 2.518, 2.831, 3.527 }, 58 /* 22. */ { 1.321, 1.717, 2.074, 2.508, 2.819, 3.505 }, 59 /* 23. */ { 1.319, 1.714, 2.069, 2.500, 2.807, 3.485 }, 60 /* 24. */ { 1.318, 1.711, 2.064, 2.492, 2.797, 3.467 }, 61 /* 25. */ { 1.316, 1.708, 2.060, 2.485, 2.787, 3.450 }, 62 /* 26. */ { 1.315, 1.706, 2.056, 2.479, 2.779, 3.435 }, 63 /* 27. */ { 1.314, 1.703, 2.052, 2.473, 2.771, 3.421 }, 64 /* 28. */ { 1.313, 1.701, 2.048, 2.467, 2.763, 3.408 }, 65 /* 29. */ { 1.311, 1.699, 2.045, 2.462, 2.756, 3.396 }, 66 /* 30. */ { 1.310, 1.697, 2.042, 2.457, 2.750, 3.385 }, 67 /* 31. */ { 1.309, 1.696, 2.040, 2.453, 2.744, 3.375 }, 68 /* 32. */ { 1.309, 1.694, 2.037, 2.449, 2.738, 3.365 }, 69 /* 33. */ { 1.308, 1.692, 2.035, 2.445, 2.733, 3.356 }, 70 /* 34. */ { 1.307, 1.691, 2.032, 2.441, 2.728, 3.348 }, 71 /* 35. */ { 1.306, 1.690, 2.030, 2.438, 2.724, 3.340 }, 72 /* 36. */ { 1.306, 1.688, 2.028, 2.434, 2.719, 3.333 }, 73 /* 37. */ { 1.305, 1.687, 2.026, 2.431, 2.715, 3.326 }, 74 /* 38. */ { 1.304, 1.686, 2.024, 2.429, 2.712, 3.319 }, 75 /* 39. */ { 1.304, 1.685, 2.023, 2.426, 2.708, 3.313 }, 76 /* 40. */ { 1.303, 1.684, 2.021, 2.423, 2.704, 3.307 }, 77 /* 41. */ { 1.303, 1.683, 2.020, 2.421, 2.701, 3.301 }, 78 /* 42. */ { 1.302, 1.682, 2.018, 2.418, 2.698, 3.296 }, 79 /* 43. */ { 1.302, 1.681, 2.017, 2.416, 2.695, 3.291 }, 80 /* 44. */ { 1.301, 1.680, 2.015, 2.414, 2.692, 3.286 }, 81 /* 45. */ { 1.301, 1.679, 2.014, 2.412, 2.690, 3.281 }, 82 /* 46. */ { 1.300, 1.679, 2.013, 2.410, 2.687, 3.277 }, 83 /* 47. */ { 1.300, 1.678, 2.012, 2.408, 2.685, 3.273 }, 84 /* 48. */ { 1.299, 1.677, 2.011, 2.407, 2.682, 3.269 }, 85 /* 49. */ { 1.299, 1.677, 2.010, 2.405, 2.680, 3.265 }, 86 /* 50. */ { 1.299, 1.676, 2.009, 2.403, 2.678, 3.261 }, 87 /* 51. */ { 1.298, 1.675, 2.008, 2.402, 2.676, 3.258 }, 88 /* 52. */ { 1.298, 1.675, 2.007, 2.400, 2.674, 3.255 }, 89 /* 53. */ { 1.298, 1.674, 2.006, 2.399, 2.672, 3.251 }, 90 /* 54. */ { 1.297, 1.674, 2.005, 2.397, 2.670, 3.248 }, 91 /* 55. */ { 1.297, 1.673, 2.004, 2.396, 2.668, 3.245 }, 92 /* 56. */ { 1.297, 1.673, 2.003, 2.395, 2.667, 3.242 }, 93 /* 57. */ { 1.297, 1.672, 2.002, 2.394, 2.665, 3.239 }, 94 /* 58. */ { 1.296, 1.672, 2.002, 2.392, 2.663, 3.237 }, 95 /* 59. */ { 1.296, 1.671, 2.001, 2.391, 2.662, 3.234 }, 96 /* 60. */ { 1.296, 1.671, 2.000, 2.390, 2.660, 3.232 }, 97 /* 61. */ { 1.296, 1.670, 2.000, 2.389, 2.659, 3.229 }, 98 /* 62. */ { 1.295, 1.670, 1.999, 2.388, 2.657, 3.227 }, 99 /* 63. */ { 1.295, 1.669, 1.998, 2.387, 2.656, 3.225 }, 100 /* 64. */ { 1.295, 1.669, 1.998, 2.386, 2.655, 3.223 }, 101 /* 65. */ { 1.295, 1.669, 1.997, 2.385, 2.654, 3.220 }, 102 /* 66. */ { 1.295, 1.668, 1.997, 2.384, 2.652, 3.218 }, 103 /* 67. */ { 1.294, 1.668, 1.996, 2.383, 2.651, 3.216 }, 104 /* 68. */ { 1.294, 1.668, 1.995, 2.382, 2.650, 3.214 }, 105 /* 69. */ { 1.294, 1.667, 1.995, 2.382, 2.649, 3.213 }, 106 /* 70. */ { 1.294, 1.667, 1.994, 2.381, 2.648, 3.211 }, 107 /* 71. */ { 1.294, 1.667, 1.994, 2.380, 2.647, 3.209 }, 108 /* 72. */ { 1.293, 1.666, 1.993, 2.379, 2.646, 3.207 }, 109 /* 73. */ { 1.293, 1.666, 1.993, 2.379, 2.645, 3.206 }, 110 /* 74. */ { 1.293, 1.666, 1.993, 2.378, 2.644, 3.204 }, 111 /* 75. */ { 1.293, 1.665, 1.992, 2.377, 2.643, 3.202 }, 112 /* 76. */ { 1.293, 1.665, 1.992, 2.376, 2.642, 3.201 }, 113 /* 77. */ { 1.293, 1.665, 1.991, 2.376, 2.641, 3.199 }, 114 /* 78. */ { 1.292, 1.665, 1.991, 2.375, 2.640, 3.198 }, 115 /* 79. */ { 1.292, 1.664, 1.990, 2.374, 2.640, 3.197 }, 116 /* 80. */ { 1.292, 1.664, 1.990, 2.374, 2.639, 3.195 }, 117 /* 81. */ { 1.292, 1.664, 1.990, 2.373, 2.638, 3.194 }, 118 /* 82. */ { 1.292, 1.664, 1.989, 2.373, 2.637, 3.193 }, 119 /* 83. */ { 1.292, 1.663, 1.989, 2.372, 2.636, 3.191 }, 120 /* 84. */ { 1.292, 1.663, 1.989, 2.372, 2.636, 3.190 }, 121 /* 85. */ { 1.292, 1.663, 1.988, 2.371, 2.635, 3.189 }, 122 /* 86. */ { 1.291, 1.663, 1.988, 2.370, 2.634, 3.188 }, 123 /* 87. */ { 1.291, 1.663, 1.988, 2.370, 2.634, 3.187 }, 124 /* 88. */ { 1.291, 1.662, 1.987, 2.369, 2.633, 3.185 }, 125 /* 89. */ { 1.291, 1.662, 1.987, 2.369, 2.632, 3.184 }, 126 /* 90. */ { 1.291, 1.662, 1.987, 2.368, 2.632, 3.183 }, 127 /* 91. */ { 1.291, 1.662, 1.986, 2.368, 2.631, 3.182 }, 128 /* 92. */ { 1.291, 1.662, 1.986, 2.368, 2.630, 3.181 }, 129 /* 93. */ { 1.291, 1.661, 1.986, 2.367, 2.630, 3.180 }, 130 /* 94. */ { 1.291, 1.661, 1.986, 2.367, 2.629, 3.179 }, 131 /* 95. */ { 1.291, 1.661, 1.985, 2.366, 2.629, 3.178 }, 132 /* 96. */ { 1.290, 1.661, 1.985, 2.366, 2.628, 3.177 }, 133 /* 97. */ { 1.290, 1.661, 1.985, 2.365, 2.627, 3.176 }, 134 /* 98. */ { 1.290, 1.661, 1.984, 2.365, 2.627, 3.175 }, 135 /* 99. */ { 1.290, 1.660, 1.984, 2.365, 2.626, 3.175 }, 136 /* 100. */ { 1.290, 1.660, 1.984, 2.364, 2.626, 3.174 } 137 }; 138 139 #define MAX_DS 8 140 static char symbol[MAX_DS] = { ' ', 'x', '+', '*', '%', '#', '@', 'O' }; 141 142 struct dataset { 143 char *name; 144 double *points; 145 size_t lpoints; 146 double sy, syy; 147 size_t n; 148 }; 149 150 static struct dataset * 151 NewSet(void) 152 { 153 struct dataset *ds; 154 155 ds = calloc(1, sizeof *ds); 156 assert(ds != NULL); 157 ds->lpoints = 100000; 158 ds->points = calloc(sizeof *ds->points, ds->lpoints); 159 assert(ds->points != NULL); 160 ds->syy = NAN; 161 return(ds); 162 } 163 164 static void 165 AddPoint(struct dataset *ds, double a) 166 { 167 double *dp; 168 169 if (ds->n >= ds->lpoints) { 170 dp = ds->points; 171 ds->lpoints *= 4; 172 ds->points = calloc(sizeof *ds->points, ds->lpoints); 173 assert(ds->points != NULL); 174 memcpy(ds->points, dp, sizeof *dp * ds->n); 175 free(dp); 176 } 177 ds->points[ds->n++] = a; 178 ds->sy += a; 179 } 180 181 static double 182 Min(const struct dataset *ds) 183 { 184 185 return (ds->points[0]); 186 } 187 188 static double 189 Max(const struct dataset *ds) 190 { 191 192 return (ds->points[ds->n -1]); 193 } 194 195 static double 196 Avg(const struct dataset *ds) 197 { 198 199 return(ds->sy / ds->n); 200 } 201 202 static double 203 Median(const struct dataset *ds) 204 { 205 const size_t m = ds->n / 2; 206 207 if ((ds->n % 2) == 0) 208 return ((ds->points[m] + (ds->points[m - 1])) / 2); 209 return (ds->points[m]); 210 } 211 212 static double 213 Var(struct dataset *ds) 214 { 215 size_t z; 216 const double a = Avg(ds); 217 218 if (isnan(ds->syy)) { 219 ds->syy = 0.0; 220 for (z = 0; z < ds->n; z++) 221 ds->syy += (ds->points[z] - a) * (ds->points[z] - a); 222 } 223 224 return (ds->syy / (ds->n - 1.0)); 225 } 226 227 static double 228 Stddev(struct dataset *ds) 229 { 230 231 return sqrt(Var(ds)); 232 } 233 234 static void 235 VitalsHead(void) 236 { 237 238 printf(" N Min Max Median Avg Stddev\n"); 239 } 240 241 static void 242 Vitals(struct dataset *ds, int flag) 243 { 244 245 printf("%c %3zu %13.8g %13.8g %13.8g %13.8g %13.8g", symbol[flag], 246 ds->n, Min(ds), Max(ds), Median(ds), Avg(ds), Stddev(ds)); 247 printf("\n"); 248 } 249 250 static void 251 Relative(struct dataset *ds, struct dataset *rs, int confidx) 252 { 253 double spool, s, d, e, t; 254 double re; 255 size_t z; 256 257 z = ds->n + rs->n - 2; 258 if (z > NSTUDENT) 259 t = student[0][confidx]; 260 else 261 t = student[z][confidx]; 262 spool = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs); 263 spool /= ds->n + rs->n - 2; 264 spool = sqrt(spool); 265 s = spool * sqrt(1.0 / ds->n + 1.0 / rs->n); 266 d = Avg(ds) - Avg(rs); 267 e = t * s; 268 269 re = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs) * 270 (Avg(ds) * Avg(ds)) / (Avg(rs) * Avg(rs)); 271 re *= (ds->n + rs->n) / (ds->n * rs->n * (ds->n + rs->n - 2.0)); 272 re = t * sqrt(re); 273 274 if (fabs(d) > e) { 275 printf("Difference at %.1f%% confidence\n", studentpct[confidx]); 276 printf(" %g +/- %g\n", d, e); 277 printf(" %g%% +/- %g%%\n", d * 100 / Avg(rs), re * 100 / Avg(rs)); 278 printf(" (Student's t, pooled s = %g)\n", spool); 279 } else { 280 printf("No difference proven at %.1f%% confidence\n", 281 studentpct[confidx]); 282 } 283 } 284 285 struct plot { 286 double min; 287 double max; 288 double span; 289 int width; 290 291 double x0, dx; 292 size_t height; 293 char *data; 294 char **bar; 295 int separate_bars; 296 int num_datasets; 297 }; 298 299 static struct plot plot; 300 301 static void 302 SetupPlot(int width, int separate, int num_datasets) 303 { 304 struct plot *pl; 305 306 pl = &plot; 307 pl->width = width; 308 pl->height = 0; 309 pl->data = NULL; 310 pl->bar = NULL; 311 pl->separate_bars = separate; 312 pl->num_datasets = num_datasets; 313 pl->min = 999e99; 314 pl->max = -999e99; 315 } 316 317 static void 318 AdjPlot(double a) 319 { 320 struct plot *pl; 321 322 pl = &plot; 323 if (a < pl->min) 324 pl->min = a; 325 if (a > pl->max) 326 pl->max = a; 327 pl->span = pl->max - pl->min; 328 pl->dx = pl->span / (pl->width - 1.0); 329 pl->x0 = pl->min - .5 * pl->dx; 330 } 331 332 static void 333 DimPlot(struct dataset *ds) 334 { 335 AdjPlot(Min(ds)); 336 AdjPlot(Max(ds)); 337 AdjPlot(Avg(ds) - Stddev(ds)); 338 AdjPlot(Avg(ds) + Stddev(ds)); 339 } 340 341 static void 342 PlotSet(struct dataset *ds, int val) 343 { 344 struct plot *pl; 345 int i, x; 346 size_t m, j, z; 347 size_t n; 348 int bar; 349 double av, sd; 350 351 pl = &plot; 352 if (pl->span == 0) 353 return; 354 355 if (pl->separate_bars) 356 bar = val-1; 357 else 358 bar = 0; 359 360 if (pl->bar == NULL) { 361 pl->bar = calloc(sizeof(char *), pl->num_datasets); 362 assert(pl->bar != NULL); 363 } 364 365 if (pl->bar[bar] == NULL) { 366 pl->bar[bar] = malloc(pl->width); 367 assert(pl->bar[bar] != NULL); 368 memset(pl->bar[bar], 0, pl->width); 369 } 370 371 m = 1; 372 i = -1; 373 j = 0; 374 /* Set m to max(j) + 1, to allocate required memory */ 375 for (n = 0; n < ds->n; n++) { 376 x = (ds->points[n] - pl->x0) / pl->dx; 377 if (x == i) { 378 j++; 379 if (j > m) 380 m = j; 381 } else { 382 j = 1; 383 i = x; 384 } 385 } 386 m += 1; 387 if (m > pl->height) { 388 pl->data = realloc(pl->data, pl->width * m); 389 assert(pl->data != NULL); 390 memset(pl->data + pl->height * pl->width, 0, 391 (m - pl->height) * pl->width); 392 } 393 pl->height = m; 394 i = -1; 395 for (n = 0; n < ds->n; n++) { 396 x = (ds->points[n] - pl->x0) / pl->dx; 397 if (x == i) { 398 j++; 399 } else { 400 j = 1; 401 i = x; 402 } 403 pl->data[j * pl->width + x] |= val; 404 } 405 av = Avg(ds); 406 sd = Stddev(ds); 407 if (!isnan(sd)) { 408 x = ((av - sd) - pl->x0) / pl->dx; 409 m = ((av + sd) - pl->x0) / pl->dx; 410 pl->bar[bar][m] = '|'; 411 pl->bar[bar][x] = '|'; 412 for (z = x + 1; z < m; z++) 413 if (pl->bar[bar][z] == 0) 414 pl->bar[bar][z] = '_'; 415 } 416 x = (Median(ds) - pl->x0) / pl->dx; 417 pl->bar[bar][x] = 'M'; 418 x = (av - pl->x0) / pl->dx; 419 pl->bar[bar][x] = 'A'; 420 } 421 422 static void 423 DumpPlot(void) 424 { 425 struct plot *pl; 426 int i, j, k; 427 size_t z; 428 429 pl = &plot; 430 if (pl->span == 0) { 431 printf("[no plot, span is zero width]\n"); 432 return; 433 } 434 435 putchar('+'); 436 for (i = 0; i < pl->width; i++) 437 putchar('-'); 438 putchar('+'); 439 putchar('\n'); 440 for (z = 1; z < pl->height; z++) { 441 putchar('|'); 442 for (j = 0; j < pl->width; j++) { 443 k = pl->data[(pl->height - z) * pl->width + j]; 444 if (k >= 0 && k < MAX_DS) 445 putchar(symbol[k]); 446 else 447 printf("[%02x]", k); 448 } 449 putchar('|'); 450 putchar('\n'); 451 } 452 for (i = 0; i < pl->num_datasets; i++) { 453 if (pl->bar[i] == NULL) 454 continue; 455 putchar('|'); 456 for (j = 0; j < pl->width; j++) { 457 k = pl->bar[i][j]; 458 if (k == 0) 459 k = ' '; 460 putchar(k); 461 } 462 putchar('|'); 463 putchar('\n'); 464 } 465 putchar('+'); 466 for (i = 0; i < pl->width; i++) 467 putchar('-'); 468 putchar('+'); 469 putchar('\n'); 470 } 471 472 static int 473 dbl_cmp(const void *a, const void *b) 474 { 475 const double *aa = a; 476 const double *bb = b; 477 478 if (*aa < *bb) 479 return (-1); 480 else if (*aa > *bb) 481 return (1); 482 else 483 return (0); 484 } 485 486 static struct dataset * 487 ReadSet(FILE *f, const char *n, int column, const char *delim) 488 { 489 char buf[BUFSIZ], *p, *t; 490 struct dataset *s; 491 double d; 492 int line; 493 int i; 494 495 s = NewSet(); 496 s->name = strdup(n); 497 assert(s->name != NULL); 498 line = 0; 499 while (fgets(buf, sizeof buf, f) != NULL) { 500 line++; 501 502 i = strlen(buf); 503 while (i > 0 && isspace(buf[i - 1])) 504 buf[--i] = '\0'; 505 for (i = 1, t = strtok(buf, delim); 506 t != NULL && *t != '#'; 507 i++, t = strtok(NULL, delim)) { 508 if (i == column) 509 break; 510 } 511 if (t == NULL || *t == '#') 512 continue; 513 514 d = strtod(t, &p); 515 if (p != NULL && *p != '\0') 516 errx(2, "Invalid data on line %d in %s", line, n); 517 if (*buf != '\0') 518 AddPoint(s, d); 519 } 520 if (s->n < 3) { 521 fprintf(stderr, 522 "Dataset %s must contain at least 3 data points\n", n); 523 exit (2); 524 } 525 qsort(s->points, s->n, sizeof *s->points, dbl_cmp); 526 return (s); 527 } 528 529 static void 530 usage(char const *whine) 531 { 532 int i; 533 534 fprintf(stderr, "%s\n", whine); 535 fprintf(stderr, 536 "Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-Ans] [-w width] [file [file ...]]\n"); 537 fprintf(stderr, "\tconfidence = {"); 538 for (i = 0; i < NCONF; i++) { 539 fprintf(stderr, "%s%g%%", 540 i ? ", " : "", 541 studentpct[i]); 542 } 543 fprintf(stderr, "}\n"); 544 fprintf(stderr, "\t-A : print statistics only. suppress the graph.\n"); 545 fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n"); 546 fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n"); 547 fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n"); 548 fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n"); 549 fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n"); 550 exit (2); 551 } 552 553 int 554 main(int argc, char **argv) 555 { 556 const char *setfilenames[MAX_DS - 1]; 557 struct dataset *ds[MAX_DS - 1]; 558 FILE *setfiles[MAX_DS - 1]; 559 int nds; 560 double a; 561 const char *delim = " \t"; 562 char *p; 563 int c, i, ci; 564 int column = 1; 565 int flag_s = 0; 566 int flag_n = 0; 567 int termwidth = 74; 568 int suppress_plot = 0; 569 570 if (isatty(STDOUT_FILENO)) { 571 struct winsize wsz; 572 573 if ((p = getenv("COLUMNS")) != NULL && *p != '\0') 574 termwidth = atoi(p); 575 else if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &wsz) != -1 && 576 wsz.ws_col > 0) 577 termwidth = wsz.ws_col - 2; 578 } 579 580 ci = -1; 581 while ((c = getopt(argc, argv, "AC:c:d:snw:")) != -1) 582 switch (c) { 583 case 'A': 584 suppress_plot = 1; 585 break; 586 case 'C': 587 column = strtol(optarg, &p, 10); 588 if (p != NULL && *p != '\0') 589 usage("Invalid column number."); 590 if (column <= 0) 591 usage("Column number should be positive."); 592 break; 593 case 'c': 594 a = strtod(optarg, &p); 595 if (p != NULL && *p != '\0') 596 usage("Not a floating point number"); 597 for (i = 0; i < NCONF; i++) 598 if (a == studentpct[i]) 599 ci = i; 600 if (ci == -1) 601 usage("No support for confidence level"); 602 break; 603 case 'd': 604 if (*optarg == '\0') 605 usage("Can't use empty delimiter string"); 606 delim = optarg; 607 break; 608 case 'n': 609 flag_n = 1; 610 break; 611 case 's': 612 flag_s = 1; 613 break; 614 case 'w': 615 termwidth = strtol(optarg, &p, 10); 616 if (p != NULL && *p != '\0') 617 usage("Invalid width, not a number."); 618 if (termwidth < 0) 619 usage("Unable to move beyond left margin."); 620 break; 621 default: 622 usage("Unknown option"); 623 break; 624 } 625 if (ci == -1) 626 ci = 2; 627 argc -= optind; 628 argv += optind; 629 630 if (argc == 0) { 631 setfilenames[0] = "<stdin>"; 632 setfiles[0] = stdin; 633 nds = 1; 634 } else { 635 if (argc > (MAX_DS - 1)) 636 usage("Too many datasets."); 637 nds = argc; 638 for (i = 0; i < nds; i++) { 639 setfilenames[i] = argv[i]; 640 if (!strcmp(argv[i], "-")) 641 setfiles[0] = stdin; 642 else 643 setfiles[i] = fopen(argv[i], "r"); 644 if (setfiles[i] == NULL) 645 err(2, "Cannot open %s", argv[i]); 646 } 647 } 648 649 if (caph_limit_stdio() < 0) 650 err(2, "capsicum"); 651 652 for (i = 0; i < nds; i++) 653 if (caph_limit_stream(fileno(setfiles[i]), CAPH_READ) < 0) 654 err(2, "unable to limit rights for %s", 655 setfilenames[i]); 656 657 /* Enter Capsicum sandbox. */ 658 if (caph_enter() < 0) 659 err(2, "unable to enter capability mode"); 660 661 for (i = 0; i < nds; i++) { 662 ds[i] = ReadSet(setfiles[i], setfilenames[i], column, delim); 663 if (setfiles[i] != stdin) 664 fclose(setfiles[i]); 665 } 666 667 for (i = 0; i < nds; i++) 668 printf("%c %s\n", symbol[i+1], ds[i]->name); 669 670 if (!flag_n && !suppress_plot) { 671 SetupPlot(termwidth, flag_s, nds); 672 for (i = 0; i < nds; i++) 673 DimPlot(ds[i]); 674 for (i = 0; i < nds; i++) 675 PlotSet(ds[i], i + 1); 676 DumpPlot(); 677 } 678 VitalsHead(); 679 Vitals(ds[0], 1); 680 for (i = 1; i < nds; i++) { 681 Vitals(ds[i], i + 1); 682 if (!flag_n) 683 Relative(ds[i], ds[0], ci); 684 } 685 exit(0); 686 } 687