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 #include <sys/capsicum.h> 15 #include <sys/ioctl.h> 16 #include <sys/queue.h> 17 #include <sys/ttycom.h> 18 19 #include <assert.h> 20 #include <capsicum_helpers.h> 21 #include <ctype.h> 22 #include <err.h> 23 #include <errno.h> 24 #include <math.h> 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 #include <unistd.h> 29 30 #define NSTUDENT 100 31 #define NCONF 6 32 static double const studentpct[] = { 80, 90, 95, 98, 99, 99.5 }; 33 static double const student[NSTUDENT + 1][NCONF] = { 34 /* inf */ { 1.282, 1.645, 1.960, 2.326, 2.576, 3.090 }, 35 /* 1. */ { 3.078, 6.314, 12.706, 31.821, 63.657, 318.313 }, 36 /* 2. */ { 1.886, 2.920, 4.303, 6.965, 9.925, 22.327 }, 37 /* 3. */ { 1.638, 2.353, 3.182, 4.541, 5.841, 10.215 }, 38 /* 4. */ { 1.533, 2.132, 2.776, 3.747, 4.604, 7.173 }, 39 /* 5. */ { 1.476, 2.015, 2.571, 3.365, 4.032, 5.893 }, 40 /* 6. */ { 1.440, 1.943, 2.447, 3.143, 3.707, 5.208 }, 41 /* 7. */ { 1.415, 1.895, 2.365, 2.998, 3.499, 4.782 }, 42 /* 8. */ { 1.397, 1.860, 2.306, 2.896, 3.355, 4.499 }, 43 /* 9. */ { 1.383, 1.833, 2.262, 2.821, 3.250, 4.296 }, 44 /* 10. */ { 1.372, 1.812, 2.228, 2.764, 3.169, 4.143 }, 45 /* 11. */ { 1.363, 1.796, 2.201, 2.718, 3.106, 4.024 }, 46 /* 12. */ { 1.356, 1.782, 2.179, 2.681, 3.055, 3.929 }, 47 /* 13. */ { 1.350, 1.771, 2.160, 2.650, 3.012, 3.852 }, 48 /* 14. */ { 1.345, 1.761, 2.145, 2.624, 2.977, 3.787 }, 49 /* 15. */ { 1.341, 1.753, 2.131, 2.602, 2.947, 3.733 }, 50 /* 16. */ { 1.337, 1.746, 2.120, 2.583, 2.921, 3.686 }, 51 /* 17. */ { 1.333, 1.740, 2.110, 2.567, 2.898, 3.646 }, 52 /* 18. */ { 1.330, 1.734, 2.101, 2.552, 2.878, 3.610 }, 53 /* 19. */ { 1.328, 1.729, 2.093, 2.539, 2.861, 3.579 }, 54 /* 20. */ { 1.325, 1.725, 2.086, 2.528, 2.845, 3.552 }, 55 /* 21. */ { 1.323, 1.721, 2.080, 2.518, 2.831, 3.527 }, 56 /* 22. */ { 1.321, 1.717, 2.074, 2.508, 2.819, 3.505 }, 57 /* 23. */ { 1.319, 1.714, 2.069, 2.500, 2.807, 3.485 }, 58 /* 24. */ { 1.318, 1.711, 2.064, 2.492, 2.797, 3.467 }, 59 /* 25. */ { 1.316, 1.708, 2.060, 2.485, 2.787, 3.450 }, 60 /* 26. */ { 1.315, 1.706, 2.056, 2.479, 2.779, 3.435 }, 61 /* 27. */ { 1.314, 1.703, 2.052, 2.473, 2.771, 3.421 }, 62 /* 28. */ { 1.313, 1.701, 2.048, 2.467, 2.763, 3.408 }, 63 /* 29. */ { 1.311, 1.699, 2.045, 2.462, 2.756, 3.396 }, 64 /* 30. */ { 1.310, 1.697, 2.042, 2.457, 2.750, 3.385 }, 65 /* 31. */ { 1.309, 1.696, 2.040, 2.453, 2.744, 3.375 }, 66 /* 32. */ { 1.309, 1.694, 2.037, 2.449, 2.738, 3.365 }, 67 /* 33. */ { 1.308, 1.692, 2.035, 2.445, 2.733, 3.356 }, 68 /* 34. */ { 1.307, 1.691, 2.032, 2.441, 2.728, 3.348 }, 69 /* 35. */ { 1.306, 1.690, 2.030, 2.438, 2.724, 3.340 }, 70 /* 36. */ { 1.306, 1.688, 2.028, 2.434, 2.719, 3.333 }, 71 /* 37. */ { 1.305, 1.687, 2.026, 2.431, 2.715, 3.326 }, 72 /* 38. */ { 1.304, 1.686, 2.024, 2.429, 2.712, 3.319 }, 73 /* 39. */ { 1.304, 1.685, 2.023, 2.426, 2.708, 3.313 }, 74 /* 40. */ { 1.303, 1.684, 2.021, 2.423, 2.704, 3.307 }, 75 /* 41. */ { 1.303, 1.683, 2.020, 2.421, 2.701, 3.301 }, 76 /* 42. */ { 1.302, 1.682, 2.018, 2.418, 2.698, 3.296 }, 77 /* 43. */ { 1.302, 1.681, 2.017, 2.416, 2.695, 3.291 }, 78 /* 44. */ { 1.301, 1.680, 2.015, 2.414, 2.692, 3.286 }, 79 /* 45. */ { 1.301, 1.679, 2.014, 2.412, 2.690, 3.281 }, 80 /* 46. */ { 1.300, 1.679, 2.013, 2.410, 2.687, 3.277 }, 81 /* 47. */ { 1.300, 1.678, 2.012, 2.408, 2.685, 3.273 }, 82 /* 48. */ { 1.299, 1.677, 2.011, 2.407, 2.682, 3.269 }, 83 /* 49. */ { 1.299, 1.677, 2.010, 2.405, 2.680, 3.265 }, 84 /* 50. */ { 1.299, 1.676, 2.009, 2.403, 2.678, 3.261 }, 85 /* 51. */ { 1.298, 1.675, 2.008, 2.402, 2.676, 3.258 }, 86 /* 52. */ { 1.298, 1.675, 2.007, 2.400, 2.674, 3.255 }, 87 /* 53. */ { 1.298, 1.674, 2.006, 2.399, 2.672, 3.251 }, 88 /* 54. */ { 1.297, 1.674, 2.005, 2.397, 2.670, 3.248 }, 89 /* 55. */ { 1.297, 1.673, 2.004, 2.396, 2.668, 3.245 }, 90 /* 56. */ { 1.297, 1.673, 2.003, 2.395, 2.667, 3.242 }, 91 /* 57. */ { 1.297, 1.672, 2.002, 2.394, 2.665, 3.239 }, 92 /* 58. */ { 1.296, 1.672, 2.002, 2.392, 2.663, 3.237 }, 93 /* 59. */ { 1.296, 1.671, 2.001, 2.391, 2.662, 3.234 }, 94 /* 60. */ { 1.296, 1.671, 2.000, 2.390, 2.660, 3.232 }, 95 /* 61. */ { 1.296, 1.670, 2.000, 2.389, 2.659, 3.229 }, 96 /* 62. */ { 1.295, 1.670, 1.999, 2.388, 2.657, 3.227 }, 97 /* 63. */ { 1.295, 1.669, 1.998, 2.387, 2.656, 3.225 }, 98 /* 64. */ { 1.295, 1.669, 1.998, 2.386, 2.655, 3.223 }, 99 /* 65. */ { 1.295, 1.669, 1.997, 2.385, 2.654, 3.220 }, 100 /* 66. */ { 1.295, 1.668, 1.997, 2.384, 2.652, 3.218 }, 101 /* 67. */ { 1.294, 1.668, 1.996, 2.383, 2.651, 3.216 }, 102 /* 68. */ { 1.294, 1.668, 1.995, 2.382, 2.650, 3.214 }, 103 /* 69. */ { 1.294, 1.667, 1.995, 2.382, 2.649, 3.213 }, 104 /* 70. */ { 1.294, 1.667, 1.994, 2.381, 2.648, 3.211 }, 105 /* 71. */ { 1.294, 1.667, 1.994, 2.380, 2.647, 3.209 }, 106 /* 72. */ { 1.293, 1.666, 1.993, 2.379, 2.646, 3.207 }, 107 /* 73. */ { 1.293, 1.666, 1.993, 2.379, 2.645, 3.206 }, 108 /* 74. */ { 1.293, 1.666, 1.993, 2.378, 2.644, 3.204 }, 109 /* 75. */ { 1.293, 1.665, 1.992, 2.377, 2.643, 3.202 }, 110 /* 76. */ { 1.293, 1.665, 1.992, 2.376, 2.642, 3.201 }, 111 /* 77. */ { 1.293, 1.665, 1.991, 2.376, 2.641, 3.199 }, 112 /* 78. */ { 1.292, 1.665, 1.991, 2.375, 2.640, 3.198 }, 113 /* 79. */ { 1.292, 1.664, 1.990, 2.374, 2.640, 3.197 }, 114 /* 80. */ { 1.292, 1.664, 1.990, 2.374, 2.639, 3.195 }, 115 /* 81. */ { 1.292, 1.664, 1.990, 2.373, 2.638, 3.194 }, 116 /* 82. */ { 1.292, 1.664, 1.989, 2.373, 2.637, 3.193 }, 117 /* 83. */ { 1.292, 1.663, 1.989, 2.372, 2.636, 3.191 }, 118 /* 84. */ { 1.292, 1.663, 1.989, 2.372, 2.636, 3.190 }, 119 /* 85. */ { 1.292, 1.663, 1.988, 2.371, 2.635, 3.189 }, 120 /* 86. */ { 1.291, 1.663, 1.988, 2.370, 2.634, 3.188 }, 121 /* 87. */ { 1.291, 1.663, 1.988, 2.370, 2.634, 3.187 }, 122 /* 88. */ { 1.291, 1.662, 1.987, 2.369, 2.633, 3.185 }, 123 /* 89. */ { 1.291, 1.662, 1.987, 2.369, 2.632, 3.184 }, 124 /* 90. */ { 1.291, 1.662, 1.987, 2.368, 2.632, 3.183 }, 125 /* 91. */ { 1.291, 1.662, 1.986, 2.368, 2.631, 3.182 }, 126 /* 92. */ { 1.291, 1.662, 1.986, 2.368, 2.630, 3.181 }, 127 /* 93. */ { 1.291, 1.661, 1.986, 2.367, 2.630, 3.180 }, 128 /* 94. */ { 1.291, 1.661, 1.986, 2.367, 2.629, 3.179 }, 129 /* 95. */ { 1.291, 1.661, 1.985, 2.366, 2.629, 3.178 }, 130 /* 96. */ { 1.290, 1.661, 1.985, 2.366, 2.628, 3.177 }, 131 /* 97. */ { 1.290, 1.661, 1.985, 2.365, 2.627, 3.176 }, 132 /* 98. */ { 1.290, 1.661, 1.984, 2.365, 2.627, 3.175 }, 133 /* 99. */ { 1.290, 1.660, 1.984, 2.365, 2.626, 3.175 }, 134 /* 100. */ { 1.290, 1.660, 1.984, 2.364, 2.626, 3.174 } 135 }; 136 137 #define MAX_DS 8 138 static char symbol[MAX_DS] = { ' ', 'x', '+', '*', '%', '#', '@', 'O' }; 139 140 struct dataset { 141 char *name; 142 double *points; 143 size_t lpoints; 144 double sy, syy; 145 size_t n; 146 }; 147 148 static struct dataset * 149 NewSet(void) 150 { 151 struct dataset *ds; 152 153 ds = calloc(1, sizeof *ds); 154 assert(ds != NULL); 155 ds->lpoints = 100000; 156 ds->points = calloc(sizeof *ds->points, ds->lpoints); 157 assert(ds->points != NULL); 158 ds->syy = NAN; 159 return(ds); 160 } 161 162 static void 163 AddPoint(struct dataset *ds, double a) 164 { 165 double *dp; 166 167 if (ds->n >= ds->lpoints) { 168 dp = ds->points; 169 ds->lpoints *= 4; 170 ds->points = calloc(sizeof *ds->points, ds->lpoints); 171 assert(ds->points != NULL); 172 memcpy(ds->points, dp, sizeof *dp * ds->n); 173 free(dp); 174 } 175 ds->points[ds->n++] = a; 176 ds->sy += a; 177 } 178 179 static double 180 Min(const struct dataset *ds) 181 { 182 183 return (ds->points[0]); 184 } 185 186 static double 187 Max(const struct dataset *ds) 188 { 189 190 return (ds->points[ds->n -1]); 191 } 192 193 static double 194 Avg(const struct dataset *ds) 195 { 196 197 return(ds->sy / ds->n); 198 } 199 200 static double 201 Median(const struct dataset *ds) 202 { 203 const size_t m = ds->n / 2; 204 205 if ((ds->n % 2) == 0) 206 return ((ds->points[m] + (ds->points[m - 1])) / 2); 207 return (ds->points[m]); 208 } 209 210 static double 211 Var(struct dataset *ds) 212 { 213 size_t z; 214 const double a = Avg(ds); 215 216 if (isnan(ds->syy)) { 217 ds->syy = 0.0; 218 for (z = 0; z < ds->n; z++) 219 ds->syy += (ds->points[z] - a) * (ds->points[z] - a); 220 } 221 222 return (ds->syy / (ds->n - 1.0)); 223 } 224 225 static double 226 Stddev(struct dataset *ds) 227 { 228 229 return sqrt(Var(ds)); 230 } 231 232 static void 233 VitalsHead(void) 234 { 235 236 printf(" N Min Max Median Avg Stddev\n"); 237 } 238 239 static void 240 Vitals(struct dataset *ds, int flag) 241 { 242 243 printf("%c %3zu %13.8g %13.8g %13.8g %13.8g %13.8g", symbol[flag], 244 ds->n, Min(ds), Max(ds), Median(ds), Avg(ds), Stddev(ds)); 245 printf("\n"); 246 } 247 248 static void 249 Relative(struct dataset *ds, struct dataset *rs, int confidx) 250 { 251 double spool, s, d, e, t; 252 double re; 253 size_t z; 254 255 z = ds->n + rs->n - 2; 256 if (z > NSTUDENT) 257 t = student[0][confidx]; 258 else 259 t = student[z][confidx]; 260 spool = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs); 261 spool /= ds->n + rs->n - 2; 262 spool = sqrt(spool); 263 s = spool * sqrt(1.0 / ds->n + 1.0 / rs->n); 264 d = Avg(ds) - Avg(rs); 265 e = t * s; 266 267 re = (ds->n - 1) * Var(ds) + (rs->n - 1) * Var(rs) * 268 (Avg(ds) * Avg(ds)) / (Avg(rs) * Avg(rs)); 269 re *= (ds->n + rs->n) / (ds->n * rs->n * (ds->n + rs->n - 2.0)); 270 re = t * sqrt(re); 271 272 if (fabs(d) > e) { 273 printf("Difference at %.1f%% confidence\n", studentpct[confidx]); 274 printf(" %g +/- %g\n", d, e); 275 printf(" %g%% +/- %g%%\n", d * 100 / Avg(rs), re * 100 / Avg(rs)); 276 printf(" (Student's t, pooled s = %g)\n", spool); 277 } else { 278 printf("No difference proven at %.1f%% confidence\n", 279 studentpct[confidx]); 280 } 281 } 282 283 struct plot { 284 double min; 285 double max; 286 double span; 287 int width; 288 289 double x0, dx; 290 size_t height; 291 char *data; 292 char **bar; 293 int separate_bars; 294 int num_datasets; 295 }; 296 297 static struct plot plot; 298 299 static void 300 SetupPlot(int width, int separate, int num_datasets) 301 { 302 struct plot *pl; 303 304 pl = &plot; 305 pl->width = width; 306 pl->height = 0; 307 pl->data = NULL; 308 pl->bar = NULL; 309 pl->separate_bars = separate; 310 pl->num_datasets = num_datasets; 311 pl->min = 999e99; 312 pl->max = -999e99; 313 } 314 315 static void 316 AdjPlot(double a) 317 { 318 struct plot *pl; 319 320 pl = &plot; 321 if (a < pl->min) 322 pl->min = a; 323 if (a > pl->max) 324 pl->max = a; 325 pl->span = pl->max - pl->min; 326 pl->dx = pl->span / (pl->width - 1.0); 327 pl->x0 = pl->min - .5 * pl->dx; 328 } 329 330 static void 331 DimPlot(struct dataset *ds) 332 { 333 AdjPlot(Min(ds)); 334 AdjPlot(Max(ds)); 335 AdjPlot(Avg(ds) - Stddev(ds)); 336 AdjPlot(Avg(ds) + Stddev(ds)); 337 } 338 339 static void 340 PlotSet(struct dataset *ds, int val) 341 { 342 struct plot *pl; 343 int i, x; 344 size_t m, j, z; 345 size_t n; 346 int bar; 347 double av, sd; 348 349 pl = &plot; 350 if (pl->span == 0) 351 return; 352 353 if (pl->separate_bars) 354 bar = val-1; 355 else 356 bar = 0; 357 358 if (pl->bar == NULL) { 359 pl->bar = calloc(sizeof(char *), pl->num_datasets); 360 assert(pl->bar != NULL); 361 } 362 363 if (pl->bar[bar] == NULL) { 364 pl->bar[bar] = malloc(pl->width); 365 assert(pl->bar[bar] != NULL); 366 memset(pl->bar[bar], 0, pl->width); 367 } 368 369 m = 1; 370 i = -1; 371 j = 0; 372 /* Set m to max(j) + 1, to allocate required memory */ 373 for (n = 0; n < ds->n; n++) { 374 x = (ds->points[n] - pl->x0) / pl->dx; 375 if (x == i) { 376 j++; 377 if (j > m) 378 m = j; 379 } else { 380 j = 1; 381 i = x; 382 } 383 } 384 m += 1; 385 if (m > pl->height) { 386 pl->data = realloc(pl->data, pl->width * m); 387 assert(pl->data != NULL); 388 memset(pl->data + pl->height * pl->width, 0, 389 (m - pl->height) * pl->width); 390 } 391 pl->height = m; 392 i = -1; 393 for (n = 0; n < ds->n; n++) { 394 x = (ds->points[n] - pl->x0) / pl->dx; 395 if (x == i) { 396 j++; 397 } else { 398 j = 1; 399 i = x; 400 } 401 pl->data[j * pl->width + x] |= val; 402 } 403 av = Avg(ds); 404 sd = Stddev(ds); 405 if (!isnan(sd)) { 406 x = ((av - sd) - pl->x0) / pl->dx; 407 m = ((av + sd) - pl->x0) / pl->dx; 408 pl->bar[bar][m] = '|'; 409 pl->bar[bar][x] = '|'; 410 for (z = x + 1; z < m; z++) 411 if (pl->bar[bar][z] == 0) 412 pl->bar[bar][z] = '_'; 413 } 414 x = (Median(ds) - pl->x0) / pl->dx; 415 pl->bar[bar][x] = 'M'; 416 x = (av - pl->x0) / pl->dx; 417 pl->bar[bar][x] = 'A'; 418 } 419 420 static void 421 DumpPlot(void) 422 { 423 struct plot *pl; 424 int i, j, k; 425 size_t z; 426 427 pl = &plot; 428 if (pl->span == 0) { 429 printf("[no plot, span is zero width]\n"); 430 return; 431 } 432 433 putchar('+'); 434 for (i = 0; i < pl->width; i++) 435 putchar('-'); 436 putchar('+'); 437 putchar('\n'); 438 for (z = 1; z < pl->height; z++) { 439 putchar('|'); 440 for (j = 0; j < pl->width; j++) { 441 k = pl->data[(pl->height - z) * pl->width + j]; 442 if (k >= 0 && k < MAX_DS) 443 putchar(symbol[k]); 444 else 445 printf("[%02x]", k); 446 } 447 putchar('|'); 448 putchar('\n'); 449 } 450 for (i = 0; i < pl->num_datasets; i++) { 451 if (pl->bar[i] == NULL) 452 continue; 453 putchar('|'); 454 for (j = 0; j < pl->width; j++) { 455 k = pl->bar[i][j]; 456 if (k == 0) 457 k = ' '; 458 putchar(k); 459 } 460 putchar('|'); 461 putchar('\n'); 462 } 463 putchar('+'); 464 for (i = 0; i < pl->width; i++) 465 putchar('-'); 466 putchar('+'); 467 putchar('\n'); 468 } 469 470 static int 471 dbl_cmp(const void *a, const void *b) 472 { 473 const double *aa = a; 474 const double *bb = b; 475 476 if (*aa < *bb) 477 return (-1); 478 else if (*aa > *bb) 479 return (1); 480 else 481 return (0); 482 } 483 484 static struct dataset * 485 ReadSet(FILE *f, const char *n, int column, const char *delim) 486 { 487 char buf[BUFSIZ], *p, *t; 488 struct dataset *s; 489 double d; 490 int line; 491 int i; 492 493 s = NewSet(); 494 s->name = strdup(n); 495 assert(s->name != NULL); 496 line = 0; 497 while (fgets(buf, sizeof buf, f) != NULL) { 498 line++; 499 500 i = strlen(buf); 501 while (i > 0 && isspace(buf[i - 1])) 502 buf[--i] = '\0'; 503 for (i = 1, t = strtok(buf, delim); 504 t != NULL && *t != '#'; 505 i++, t = strtok(NULL, delim)) { 506 if (i == column) 507 break; 508 } 509 if (t == NULL || *t == '#') 510 continue; 511 512 d = strtod(t, &p); 513 if (p != NULL && *p != '\0') 514 errx(2, "Invalid data on line %d in %s", line, n); 515 if (*buf != '\0') 516 AddPoint(s, d); 517 } 518 if (s->n < 3) { 519 fprintf(stderr, 520 "Dataset %s must contain at least 3 data points\n", n); 521 exit (2); 522 } 523 qsort(s->points, s->n, sizeof *s->points, dbl_cmp); 524 return (s); 525 } 526 527 static void 528 usage(char const *whine) 529 { 530 int i; 531 532 fprintf(stderr, "%s\n", whine); 533 fprintf(stderr, 534 "Usage: ministat [-C column] [-c confidence] [-d delimiter(s)] [-Anqs] [-w width] [file [file ...]]\n"); 535 fprintf(stderr, "\tconfidence = {"); 536 for (i = 0; i < NCONF; i++) { 537 fprintf(stderr, "%s%g%%", 538 i ? ", " : "", 539 studentpct[i]); 540 } 541 fprintf(stderr, "}\n"); 542 fprintf(stderr, "\t-A : print statistics only. suppress the graph.\n"); 543 fprintf(stderr, "\t-C : column number to extract (starts and defaults to 1)\n"); 544 fprintf(stderr, "\t-d : delimiter(s) string, default to \" \\t\"\n"); 545 fprintf(stderr, "\t-n : print summary statistics only, no graph/test\n"); 546 fprintf(stderr, "\t-q : suppress printing summary-statistics headers and data-set names\n"); 547 fprintf(stderr, "\t-s : print avg/median/stddev bars on separate lines\n"); 548 fprintf(stderr, "\t-w : width of graph/test output (default 74 or terminal width)\n"); 549 exit (2); 550 } 551 552 int 553 main(int argc, char **argv) 554 { 555 const char *setfilenames[MAX_DS - 1]; 556 struct dataset *ds[MAX_DS - 1]; 557 FILE *setfiles[MAX_DS - 1]; 558 int nds; 559 double a; 560 const char *delim = " \t"; 561 char *p; 562 int c, i, ci; 563 int column = 1; 564 int flag_s = 0; 565 int flag_n = 0; 566 int flag_q = 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:snqw:")) != -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 'q': 612 flag_q = 1; 613 break; 614 case 's': 615 flag_s = 1; 616 break; 617 case 'w': 618 termwidth = strtol(optarg, &p, 10); 619 if (p != NULL && *p != '\0') 620 usage("Invalid width, not a number."); 621 if (termwidth < 0) 622 usage("Unable to move beyond left margin."); 623 break; 624 default: 625 usage("Unknown option"); 626 break; 627 } 628 if (ci == -1) 629 ci = 2; 630 argc -= optind; 631 argv += optind; 632 633 if (argc == 0) { 634 setfilenames[0] = "<stdin>"; 635 setfiles[0] = stdin; 636 nds = 1; 637 } else { 638 if (argc > (MAX_DS - 1)) 639 usage("Too many datasets."); 640 nds = argc; 641 for (i = 0; i < nds; i++) { 642 setfilenames[i] = argv[i]; 643 if (!strcmp(argv[i], "-")) 644 setfiles[0] = stdin; 645 else 646 setfiles[i] = fopen(argv[i], "r"); 647 if (setfiles[i] == NULL) 648 err(2, "Cannot open %s", argv[i]); 649 } 650 } 651 652 if (caph_limit_stdio() < 0) 653 err(2, "capsicum"); 654 655 for (i = 0; i < nds; i++) 656 if (caph_limit_stream(fileno(setfiles[i]), CAPH_READ) < 0) 657 err(2, "unable to limit rights for %s", 658 setfilenames[i]); 659 660 /* Enter Capsicum sandbox. */ 661 if (caph_enter() < 0) 662 err(2, "unable to enter capability mode"); 663 664 for (i = 0; i < nds; i++) { 665 ds[i] = ReadSet(setfiles[i], setfilenames[i], column, delim); 666 if (setfiles[i] != stdin) 667 fclose(setfiles[i]); 668 } 669 670 if (!flag_q) { 671 for (i = 0; i < nds; i++) 672 printf("%c %s\n", symbol[i+1], ds[i]->name); 673 } 674 675 if (!flag_n && !suppress_plot) { 676 SetupPlot(termwidth, flag_s, nds); 677 for (i = 0; i < nds; i++) 678 DimPlot(ds[i]); 679 for (i = 0; i < nds; i++) 680 PlotSet(ds[i], i + 1); 681 DumpPlot(); 682 } 683 if (!flag_q) 684 VitalsHead(); 685 Vitals(ds[0], 1); 686 for (i = 1; i < nds; i++) { 687 Vitals(ds[i], i + 1); 688 if (!flag_n) 689 Relative(ds[i], ds[0], ci); 690 } 691 exit(0); 692 } 693