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