Commit | Line | Data |
---|---|---|
cb2c86fd JA |
1 | /* |
2 | * This file contains the ini and command liner parser main. | |
3 | */ | |
4 | #include <stdio.h> | |
5 | #include <stdlib.h> | |
6 | #include <unistd.h> | |
7 | #include <ctype.h> | |
8 | #include <string.h> | |
9 | #include <errno.h> | |
10 | #include <limits.h> | |
88b5a391 | 11 | #include <stdlib.h> |
cb2c86fd JA |
12 | |
13 | #include "parse.h" | |
a3d741fa | 14 | #include "debug.h" |
cb2c86fd | 15 | |
3b8b7135 JA |
16 | static struct fio_option *fio_options; |
17 | ||
f085737f JA |
18 | static int vp_cmp(const void *p1, const void *p2) |
19 | { | |
20 | const struct value_pair *vp1 = p1; | |
21 | const struct value_pair *vp2 = p2; | |
22 | ||
23 | return strlen(vp2->ival) - strlen(vp1->ival); | |
24 | } | |
25 | ||
26 | static void posval_sort(struct fio_option *o, struct value_pair *vpmap) | |
27 | { | |
28 | const struct value_pair *vp; | |
29 | int entries; | |
30 | ||
31 | memset(vpmap, 0, PARSE_MAX_VP * sizeof(struct value_pair)); | |
32 | ||
33 | for (entries = 0; entries < PARSE_MAX_VP; entries++) { | |
34 | vp = &o->posval[entries]; | |
35 | if (!vp->ival || vp->ival[0] == '\0') | |
36 | break; | |
37 | ||
38 | memcpy(&vpmap[entries], vp, sizeof(*vp)); | |
39 | } | |
40 | ||
41 | qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp); | |
42 | } | |
43 | ||
b1ec1da6 JA |
44 | static void show_option_range(struct fio_option *o) |
45 | { | |
46 | if (!o->minval && !o->maxval) | |
47 | return; | |
48 | ||
3980127d JA |
49 | printf("%20s: min=%d", "range", o->minval); |
50 | if (o->maxval) | |
51 | printf(", max=%d", o->maxval); | |
52 | printf("\n"); | |
b1ec1da6 JA |
53 | } |
54 | ||
55 | static void show_option_values(struct fio_option *o) | |
56 | { | |
b1ec1da6 JA |
57 | int i = 0; |
58 | ||
59 | do { | |
7837213b | 60 | const struct value_pair *vp = &o->posval[i]; |
b1ec1da6 | 61 | |
7837213b JA |
62 | if (!vp->ival) |
63 | break; | |
b1ec1da6 | 64 | |
7837213b JA |
65 | printf("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival); |
66 | if (vp->help) | |
67 | printf(" %s", vp->help); | |
68 | printf("\n"); | |
b1ec1da6 JA |
69 | i++; |
70 | } while (i < PARSE_MAX_VP); | |
71 | ||
72 | if (i) | |
73 | printf("\n"); | |
74 | } | |
75 | ||
cb2c86fd JA |
76 | static unsigned long get_mult_time(char c) |
77 | { | |
78 | switch (c) { | |
5ec10eaa JA |
79 | case 'm': |
80 | case 'M': | |
81 | return 60; | |
82 | case 'h': | |
83 | case 'H': | |
84 | return 60 * 60; | |
85 | case 'd': | |
86 | case 'D': | |
87 | return 24 * 60 * 60; | |
88 | default: | |
89 | return 1; | |
cb2c86fd JA |
90 | } |
91 | } | |
92 | ||
93 | static unsigned long get_mult_bytes(char c) | |
94 | { | |
95 | switch (c) { | |
5ec10eaa JA |
96 | case 'k': |
97 | case 'K': | |
98 | return 1024; | |
99 | case 'm': | |
100 | case 'M': | |
101 | return 1024 * 1024; | |
102 | case 'g': | |
103 | case 'G': | |
104 | return 1024 * 1024 * 1024; | |
105 | case 'e': | |
106 | case 'E': | |
107 | return 1024 * 1024 * 1024 * 1024UL; | |
108 | default: | |
109 | return 1; | |
cb2c86fd JA |
110 | } |
111 | } | |
112 | ||
113 | /* | |
e1f36503 | 114 | * convert string into decimal value, noting any size suffix |
cb2c86fd | 115 | */ |
564ca972 | 116 | int str_to_decimal(const char *str, long long *val, int kilo) |
cb2c86fd | 117 | { |
b347f9da | 118 | int len, base; |
cb2c86fd | 119 | |
cb2c86fd | 120 | len = strlen(str); |
f90eff5a JA |
121 | if (!len) |
122 | return 1; | |
cb2c86fd | 123 | |
b347f9da JA |
124 | if (strstr(str, "0x") || strstr(str, "0X")) |
125 | base = 16; | |
126 | else | |
127 | base = 10; | |
128 | ||
129 | *val = strtoll(str, NULL, base); | |
cda866ca | 130 | if (*val == LONG_MAX && errno == ERANGE) |
cb2c86fd JA |
131 | return 1; |
132 | ||
133 | if (kilo) | |
134 | *val *= get_mult_bytes(str[len - 1]); | |
135 | else | |
136 | *val *= get_mult_time(str[len - 1]); | |
787f7e95 | 137 | |
cb2c86fd JA |
138 | return 0; |
139 | } | |
140 | ||
63f29372 | 141 | static int check_str_bytes(const char *p, long long *val) |
cb2c86fd | 142 | { |
cb2c86fd JA |
143 | return str_to_decimal(p, val, 1); |
144 | } | |
145 | ||
63f29372 | 146 | static int check_str_time(const char *p, long long *val) |
cb2c86fd | 147 | { |
cb2c86fd JA |
148 | return str_to_decimal(p, val, 0); |
149 | } | |
150 | ||
151 | void strip_blank_front(char **p) | |
152 | { | |
153 | char *s = *p; | |
154 | ||
155 | while (isspace(*s)) | |
156 | s++; | |
4d651dad JA |
157 | |
158 | *p = s; | |
cb2c86fd JA |
159 | } |
160 | ||
161 | void strip_blank_end(char *p) | |
162 | { | |
853ee7fc | 163 | char *start = p, *s; |
523bfadb JA |
164 | |
165 | s = strchr(p, ';'); | |
166 | if (s) | |
167 | *s = '\0'; | |
168 | s = strchr(p, '#'); | |
169 | if (s) | |
170 | *s = '\0'; | |
171 | if (s) | |
172 | p = s; | |
173 | ||
7f7e6e59 | 174 | s = p + strlen(p); |
853ee7fc | 175 | while ((isspace(*s) || iscntrl(*s)) && (s > start)) |
cb2c86fd JA |
176 | s--; |
177 | ||
178 | *(s + 1) = '\0'; | |
179 | } | |
180 | ||
63f29372 | 181 | static int check_range_bytes(const char *str, long *val) |
cb2c86fd JA |
182 | { |
183 | char suffix; | |
184 | ||
787f7e95 JA |
185 | if (!strlen(str)) |
186 | return 1; | |
187 | ||
cb2c86fd JA |
188 | if (sscanf(str, "%lu%c", val, &suffix) == 2) { |
189 | *val *= get_mult_bytes(suffix); | |
190 | return 0; | |
191 | } | |
192 | ||
193 | if (sscanf(str, "%lu", val) == 1) | |
194 | return 0; | |
195 | ||
196 | return 1; | |
197 | } | |
198 | ||
63f29372 | 199 | static int check_int(const char *p, int *val) |
cb2c86fd | 200 | { |
787f7e95 JA |
201 | if (!strlen(p)) |
202 | return 1; | |
d78ee463 | 203 | if (strstr(p, "0x") || strstr(p, "0X")) { |
a61bdfd8 JA |
204 | if (sscanf(p, "%x", val) == 1) |
205 | return 0; | |
206 | } else { | |
207 | if (sscanf(p, "%u", val) == 1) | |
208 | return 0; | |
209 | } | |
cb2c86fd | 210 | |
e1f36503 JA |
211 | return 1; |
212 | } | |
cb2c86fd | 213 | |
e1f36503 JA |
214 | static struct fio_option *find_option(struct fio_option *options, |
215 | const char *opt) | |
216 | { | |
4945ba12 | 217 | struct fio_option *o; |
cb2c86fd | 218 | |
4945ba12 | 219 | for (o = &options[0]; o->name; o++) { |
e1f36503 JA |
220 | if (!strcmp(o->name, opt)) |
221 | return o; | |
03b74b3e JA |
222 | else if (o->alias && !strcmp(o->alias, opt)) |
223 | return o; | |
33963c6c | 224 | } |
cb2c86fd | 225 | |
e1f36503 | 226 | return NULL; |
cb2c86fd JA |
227 | } |
228 | ||
17abbe89 JA |
229 | #define val_store(ptr, val, off, data) \ |
230 | do { \ | |
231 | ptr = td_var((data), (off)); \ | |
232 | *ptr = (val); \ | |
233 | } while (0) | |
234 | ||
f90eff5a | 235 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
787f7e95 | 236 | int first, int more) |
cb2c86fd | 237 | { |
63f29372 JA |
238 | int il, *ilp; |
239 | long long ull, *ullp; | |
240 | long ul1, ul2; | |
b4692828 | 241 | char **cp; |
e1f36503 | 242 | int ret = 0, is_time = 0; |
cb2c86fd | 243 | |
a3d741fa JA |
244 | dprint(FD_PARSE, "__handle_option=%s, type=%d, ptr=%s\n", o->name, |
245 | o->type, ptr); | |
246 | ||
e3cedca7 | 247 | if (!ptr && o->type != FIO_OPT_STR_SET && o->type != FIO_OPT_STR) { |
08e26e35 JA |
248 | fprintf(stderr, "Option %s requires an argument\n", o->name); |
249 | return 1; | |
250 | } | |
251 | ||
e1f36503 JA |
252 | switch (o->type) { |
253 | case FIO_OPT_STR: { | |
254 | fio_opt_str_fn *fn = o->cb; | |
b1ec1da6 | 255 | const struct value_pair *vp; |
f085737f | 256 | struct value_pair posval[PARSE_MAX_VP]; |
b1ec1da6 JA |
257 | int i; |
258 | ||
f085737f JA |
259 | posval_sort(o, posval); |
260 | ||
b1ec1da6 | 261 | for (i = 0; i < PARSE_MAX_VP; i++) { |
f085737f | 262 | vp = &posval[i]; |
b1ec1da6 JA |
263 | if (!vp->ival || vp->ival[0] == '\0') |
264 | break; | |
6612a27b | 265 | ret = 1; |
b1ec1da6 JA |
266 | if (!strncmp(vp->ival, ptr, strlen(vp->ival))) { |
267 | ret = 0; | |
268 | if (!o->off1) | |
269 | break; | |
270 | val_store(ilp, vp->oval, o->off1, data); | |
271 | break; | |
272 | } | |
273 | } | |
cb2c86fd | 274 | |
b1ec1da6 JA |
275 | if (ret) |
276 | show_option_values(o); | |
277 | else if (fn) | |
278 | ret = fn(data, ptr); | |
e1f36503 JA |
279 | break; |
280 | } | |
281 | case FIO_OPT_STR_VAL_TIME: | |
282 | is_time = 1; | |
f7fa2653 | 283 | case FIO_OPT_INT: |
e01b22b8 | 284 | case FIO_OPT_STR_VAL: { |
e1f36503 JA |
285 | fio_opt_str_val_fn *fn = o->cb; |
286 | ||
287 | if (is_time) | |
288 | ret = check_str_time(ptr, &ull); | |
289 | else | |
290 | ret = check_str_bytes(ptr, &ull); | |
291 | ||
292 | if (ret) | |
293 | break; | |
294 | ||
db8e0165 | 295 | if (o->maxval && ull > o->maxval) { |
5ec10eaa JA |
296 | fprintf(stderr, "max value out of range: %lld" |
297 | " (%d max)\n", ull, o->maxval); | |
db8e0165 JA |
298 | return 1; |
299 | } | |
300 | if (o->minval && ull < o->minval) { | |
5ec10eaa JA |
301 | fprintf(stderr, "min value out of range: %lld" |
302 | " (%d min)\n", ull, o->minval); | |
db8e0165 JA |
303 | return 1; |
304 | } | |
e1f36503 JA |
305 | |
306 | if (fn) | |
307 | ret = fn(data, &ull); | |
308 | else { | |
e01b22b8 | 309 | if (o->type == FIO_OPT_INT) { |
17abbe89 JA |
310 | if (first) |
311 | val_store(ilp, ull, o->off1, data); | |
787f7e95 | 312 | if (!more && o->off2) |
17abbe89 | 313 | val_store(ilp, ull, o->off2, data); |
75e6f36f | 314 | } else { |
17abbe89 JA |
315 | if (first) |
316 | val_store(ullp, ull, o->off1, data); | |
787f7e95 | 317 | if (!more && o->off2) |
17abbe89 | 318 | val_store(ullp, ull, o->off2, data); |
75e6f36f | 319 | } |
e1f36503 JA |
320 | } |
321 | break; | |
322 | } | |
af52b345 JA |
323 | case FIO_OPT_STR_STORE: { |
324 | fio_opt_str_fn *fn = o->cb; | |
325 | ||
e1f36503 JA |
326 | cp = td_var(data, o->off1); |
327 | *cp = strdup(ptr); | |
af52b345 JA |
328 | if (fn) { |
329 | ret = fn(data, ptr); | |
330 | if (ret) { | |
331 | free(*cp); | |
332 | *cp = NULL; | |
333 | } | |
334 | } | |
e1f36503 | 335 | break; |
af52b345 | 336 | } |
e1f36503 | 337 | case FIO_OPT_RANGE: { |
b765a372 | 338 | char tmp[128]; |
e1f36503 JA |
339 | char *p1, *p2; |
340 | ||
0bbab0e7 | 341 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
b765a372 JA |
342 | |
343 | p1 = strchr(tmp, '-'); | |
e1f36503 | 344 | if (!p1) { |
0c9baf91 JA |
345 | p1 = strchr(tmp, ':'); |
346 | if (!p1) { | |
347 | ret = 1; | |
348 | break; | |
349 | } | |
e1f36503 JA |
350 | } |
351 | ||
352 | p2 = p1 + 1; | |
353 | *p1 = '\0'; | |
b765a372 | 354 | p1 = tmp; |
e1f36503 JA |
355 | |
356 | ret = 1; | |
5ec10eaa JA |
357 | if (!check_range_bytes(p1, &ul1) && |
358 | !check_range_bytes(p2, &ul2)) { | |
e1f36503 | 359 | ret = 0; |
e1f36503 | 360 | if (ul1 > ul2) { |
f90eff5a JA |
361 | unsigned long foo = ul1; |
362 | ||
363 | ul1 = ul2; | |
364 | ul2 = foo; | |
365 | } | |
366 | ||
367 | if (first) { | |
17abbe89 JA |
368 | val_store(ilp, ul1, o->off1, data); |
369 | val_store(ilp, ul2, o->off2, data); | |
370 | } | |
97e8cd44 | 371 | if (o->off3 && o->off4) { |
17abbe89 JA |
372 | val_store(ilp, ul1, o->off3, data); |
373 | val_store(ilp, ul2, o->off4, data); | |
e1f36503 | 374 | } |
17abbe89 JA |
375 | } |
376 | ||
e1f36503 JA |
377 | break; |
378 | } | |
13335ddb | 379 | case FIO_OPT_BOOL: { |
e1f36503 JA |
380 | fio_opt_int_fn *fn = o->cb; |
381 | ||
382 | ret = check_int(ptr, &il); | |
383 | if (ret) | |
384 | break; | |
385 | ||
db8e0165 | 386 | if (o->maxval && il > (int) o->maxval) { |
5ec10eaa JA |
387 | fprintf(stderr, "max value out of range: %d (%d max)\n", |
388 | il, o->maxval); | |
db8e0165 JA |
389 | return 1; |
390 | } | |
391 | if (o->minval && il < o->minval) { | |
5ec10eaa JA |
392 | fprintf(stderr, "min value out of range: %d (%d min)\n", |
393 | il, o->minval); | |
db8e0165 JA |
394 | return 1; |
395 | } | |
e1f36503 | 396 | |
76a43db4 JA |
397 | if (o->neg) |
398 | il = !il; | |
399 | ||
e1f36503 JA |
400 | if (fn) |
401 | ret = fn(data, &il); | |
402 | else { | |
17abbe89 JA |
403 | if (first) |
404 | val_store(ilp, il, o->off1, data); | |
787f7e95 | 405 | if (!more && o->off2) |
17abbe89 | 406 | val_store(ilp, il, o->off2, data); |
e1f36503 JA |
407 | } |
408 | break; | |
409 | } | |
410 | case FIO_OPT_STR_SET: { | |
411 | fio_opt_str_set_fn *fn = o->cb; | |
412 | ||
413 | if (fn) | |
414 | ret = fn(data); | |
415 | else { | |
17abbe89 JA |
416 | if (first) |
417 | val_store(ilp, 1, o->off1, data); | |
787f7e95 | 418 | if (!more && o->off2) |
17abbe89 | 419 | val_store(ilp, 1, o->off2, data); |
e1f36503 JA |
420 | } |
421 | break; | |
422 | } | |
15ca150e JA |
423 | case FIO_OPT_DEPRECATED: |
424 | fprintf(stdout, "Option %s is deprecated\n", o->name); | |
425 | break; | |
e1f36503 | 426 | default: |
1e97cce9 | 427 | fprintf(stderr, "Bad option type %u\n", o->type); |
e1f36503 JA |
428 | ret = 1; |
429 | } | |
cb2c86fd | 430 | |
70a4c0c8 JA |
431 | if (ret) |
432 | return ret; | |
433 | ||
434 | if (o->verify) | |
435 | ret = o->verify(o, data); | |
436 | ||
e1f36503 | 437 | return ret; |
cb2c86fd JA |
438 | } |
439 | ||
7c8f1a5c | 440 | static int handle_option(struct fio_option *o, const char *__ptr, void *data) |
f90eff5a | 441 | { |
7c8f1a5c | 442 | char *ptr, *ptr2 = NULL; |
787f7e95 | 443 | int r1, r2; |
f90eff5a | 444 | |
7c8f1a5c JA |
445 | dprint(FD_PARSE, "handle_option=%s, ptr=%s\n", o->name, __ptr); |
446 | ||
447 | ptr = NULL; | |
448 | if (__ptr) | |
449 | ptr = strdup(__ptr); | |
a3d741fa | 450 | |
f90eff5a | 451 | /* |
787f7e95 JA |
452 | * See if we have a second set of parameters, hidden after a comma. |
453 | * Do this before parsing the first round, to check if we should | |
454 | * copy set 1 options to set 2. | |
f90eff5a | 455 | */ |
ad231bc4 JB |
456 | if (ptr && |
457 | (o->type != FIO_OPT_STR_STORE) && | |
458 | (o->type != FIO_OPT_STR)) { | |
92b586f8 | 459 | ptr2 = strchr(ptr, ','); |
7c8f1a5c JA |
460 | if (ptr2 && *(ptr2 + 1) == '\0') |
461 | *ptr2 = '\0'; | |
0c9baf91 JA |
462 | if (!ptr2) |
463 | ptr2 = strchr(ptr, ':'); | |
b486f76a JA |
464 | if (!ptr2) |
465 | ptr2 = strchr(ptr, '-'); | |
0c9baf91 | 466 | } |
787f7e95 JA |
467 | |
468 | /* | |
469 | * Don't return early if parsing the first option fails - if | |
470 | * we are doing multiple arguments, we can allow the first one | |
471 | * being empty. | |
472 | */ | |
473 | r1 = __handle_option(o, ptr, data, 1, !!ptr2); | |
474 | ||
7c8f1a5c JA |
475 | if (!ptr2) { |
476 | if (ptr) | |
477 | free(ptr); | |
787f7e95 | 478 | return r1; |
7c8f1a5c | 479 | } |
f90eff5a JA |
480 | |
481 | ptr2++; | |
787f7e95 JA |
482 | r2 = __handle_option(o, ptr2, data, 0, 0); |
483 | ||
7c8f1a5c JA |
484 | if (ptr) |
485 | free(ptr); | |
787f7e95 | 486 | return r1 && r2; |
f90eff5a JA |
487 | } |
488 | ||
3b8b7135 JA |
489 | static struct fio_option *get_option(const char *opt, |
490 | struct fio_option *options, char **post) | |
491 | { | |
492 | struct fio_option *o; | |
493 | char *ret; | |
494 | ||
495 | ret = strchr(opt, '='); | |
496 | if (ret) { | |
497 | *post = ret; | |
498 | *ret = '\0'; | |
499 | ret = (char *) opt; | |
500 | (*post)++; | |
43c129b4 | 501 | strip_blank_end(ret); |
3b8b7135 JA |
502 | o = find_option(options, ret); |
503 | } else { | |
504 | o = find_option(options, opt); | |
505 | *post = NULL; | |
506 | } | |
507 | ||
508 | return o; | |
509 | } | |
510 | ||
511 | static int opt_cmp(const void *p1, const void *p2) | |
512 | { | |
513 | struct fio_option *o1, *o2; | |
514 | char *s1, *s2, *foo; | |
8cdabc1d | 515 | int prio1, prio2; |
3b8b7135 JA |
516 | |
517 | s1 = strdup(*((char **) p1)); | |
518 | s2 = strdup(*((char **) p2)); | |
519 | ||
520 | o1 = get_option(s1, fio_options, &foo); | |
521 | o2 = get_option(s2, fio_options, &foo); | |
8cdabc1d JA |
522 | |
523 | prio1 = prio2 = 0; | |
524 | if (o1) | |
525 | prio1 = o1->prio; | |
526 | if (o2) | |
527 | prio2 = o2->prio; | |
3b8b7135 JA |
528 | |
529 | free(s1); | |
530 | free(s2); | |
8cdabc1d | 531 | return prio2 - prio1; |
3b8b7135 JA |
532 | } |
533 | ||
534 | void sort_options(char **opts, struct fio_option *options, int num_opts) | |
535 | { | |
536 | fio_options = options; | |
537 | qsort(opts, num_opts, sizeof(char *), opt_cmp); | |
538 | fio_options = NULL; | |
539 | } | |
540 | ||
b4692828 JA |
541 | int parse_cmd_option(const char *opt, const char *val, |
542 | struct fio_option *options, void *data) | |
543 | { | |
544 | struct fio_option *o; | |
545 | ||
546 | o = find_option(options, opt); | |
547 | if (!o) { | |
43c129b4 | 548 | fprintf(stderr, "Bad option <%s>\n", opt); |
b4692828 JA |
549 | return 1; |
550 | } | |
551 | ||
b1508cf9 JA |
552 | if (!handle_option(o, val, data)) |
553 | return 0; | |
554 | ||
555 | fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val); | |
556 | return 1; | |
b4692828 JA |
557 | } |
558 | ||
88b5a391 AC |
559 | /* |
560 | * Return a copy of the input string with substrings of the form ${VARNAME} | |
561 | * substituted with the value of the environment variable VARNAME. The | |
562 | * substitution always occurs, even if VARNAME is empty or the corresponding | |
563 | * environment variable undefined. | |
564 | */ | |
565 | static char *option_dup_subs(const char *opt) | |
566 | { | |
567 | char out[OPT_LEN_MAX+1]; | |
568 | char in[OPT_LEN_MAX+1]; | |
569 | char *outptr = out; | |
570 | char *inptr = in; | |
571 | char *ch1, *ch2, *env; | |
572 | ssize_t nchr = OPT_LEN_MAX; | |
573 | size_t envlen; | |
574 | ||
575 | in[OPT_LEN_MAX] = '\0'; | |
576 | strncpy(in, opt, OPT_LEN_MAX); | |
577 | ||
578 | while (*inptr && nchr > 0) { | |
579 | if (inptr[0] == '$' && inptr[1] == '{') { | |
580 | ch2 = strchr(inptr, '}'); | |
581 | if (ch2 && inptr+1 < ch2) { | |
582 | ch1 = inptr+2; | |
583 | inptr = ch2+1; | |
584 | *ch2 = '\0'; | |
585 | ||
586 | env = getenv(ch1); | |
587 | if (env) { | |
588 | envlen = strlen(env); | |
589 | if (envlen <= nchr) { | |
590 | memcpy(outptr, env, envlen); | |
591 | outptr += envlen; | |
592 | nchr -= envlen; | |
593 | } | |
594 | } | |
595 | ||
596 | continue; | |
597 | } | |
598 | } | |
599 | ||
600 | *outptr++ = *inptr++; | |
601 | --nchr; | |
602 | } | |
603 | ||
604 | *outptr = '\0'; | |
605 | return strdup(out); | |
606 | } | |
607 | ||
e1f36503 | 608 | int parse_option(const char *opt, struct fio_option *options, void *data) |
cb2c86fd | 609 | { |
b4692828 | 610 | struct fio_option *o; |
3b8b7135 | 611 | char *post, *tmp; |
e1f36503 | 612 | |
88b5a391 | 613 | tmp = option_dup_subs(opt); |
e1f36503 | 614 | |
3b8b7135 | 615 | o = get_option(tmp, options, &post); |
e1f36503 | 616 | if (!o) { |
43c129b4 | 617 | fprintf(stderr, "Bad option <%s>\n", tmp); |
0401bca6 | 618 | free(tmp); |
e1f36503 JA |
619 | return 1; |
620 | } | |
621 | ||
0401bca6 JA |
622 | if (!handle_option(o, post, data)) { |
623 | free(tmp); | |
b1508cf9 | 624 | return 0; |
0401bca6 | 625 | } |
b1508cf9 JA |
626 | |
627 | fprintf(stderr, "fio: failed parsing %s\n", opt); | |
0401bca6 | 628 | free(tmp); |
b1508cf9 | 629 | return 1; |
e1f36503 | 630 | } |
fd28ca49 | 631 | |
0e9f7fac JA |
632 | /* |
633 | * Option match, levenshtein distance. Handy for not quite remembering what | |
634 | * the option name is. | |
635 | */ | |
636 | static int string_distance(const char *s1, const char *s2) | |
637 | { | |
638 | unsigned int s1_len = strlen(s1); | |
639 | unsigned int s2_len = strlen(s2); | |
640 | unsigned int *p, *q, *r; | |
641 | unsigned int i, j; | |
642 | ||
643 | p = malloc(sizeof(unsigned int) * (s2_len + 1)); | |
644 | q = malloc(sizeof(unsigned int) * (s2_len + 1)); | |
645 | ||
646 | p[0] = 0; | |
647 | for (i = 1; i <= s2_len; i++) | |
648 | p[i] = p[i - 1] + 1; | |
649 | ||
650 | for (i = 1; i <= s1_len; i++) { | |
651 | q[0] = p[0] + 1; | |
652 | for (j = 1; j <= s2_len; j++) { | |
653 | unsigned int sub = p[j - 1]; | |
654 | ||
655 | if (s1[i - 1] != s2[j - 1]) | |
656 | sub++; | |
657 | ||
658 | q[j] = min(p[j] + 1, min(q[j - 1] + 1, sub)); | |
659 | } | |
660 | r = p; | |
661 | p = q; | |
662 | q = r; | |
663 | } | |
664 | ||
665 | i = p[s2_len]; | |
666 | free(p); | |
667 | free(q); | |
668 | return i; | |
669 | } | |
670 | ||
671 | static void show_option_help(struct fio_option *o) | |
fd28ca49 | 672 | { |
fd28ca49 JA |
673 | const char *typehelp[] = { |
674 | "string (opt=bla)", | |
675 | "string with possible k/m/g postfix (opt=4k)", | |
fd28ca49 JA |
676 | "string with time postfix (opt=10s)", |
677 | "string (opt=bla)", | |
678 | "string with dual range (opt=1k-4k,4k-8k)", | |
679 | "integer value (opt=100)", | |
13335ddb | 680 | "boolean value (opt=1)", |
fd28ca49 JA |
681 | "no argument (opt)", |
682 | }; | |
0e9f7fac | 683 | |
d2bb7fea JA |
684 | if (o->alias) |
685 | printf("%20s: %s\n", "alias", o->alias); | |
686 | ||
0e9f7fac JA |
687 | printf("%20s: %s\n", "type", typehelp[o->type]); |
688 | printf("%20s: %s\n", "default", o->def ? o->def : "no default"); | |
689 | show_option_range(o); | |
690 | show_option_values(o); | |
691 | } | |
692 | ||
afdf9352 JA |
693 | static struct fio_option *find_child(struct fio_option *options, |
694 | struct fio_option *o) | |
695 | { | |
696 | struct fio_option *__o; | |
697 | ||
fdf28744 JA |
698 | for (__o = options + 1; __o->name; __o++) |
699 | if (__o->parent && !strcmp(__o->parent, o->name)) | |
afdf9352 JA |
700 | return __o; |
701 | ||
702 | return NULL; | |
703 | } | |
704 | ||
323d9113 JA |
705 | static void __print_option(struct fio_option *o, struct fio_option *org, |
706 | int level) | |
afdf9352 JA |
707 | { |
708 | char name[256], *p; | |
323d9113 | 709 | int depth; |
afdf9352 JA |
710 | |
711 | if (!o) | |
712 | return; | |
ef9aff52 JA |
713 | if (!org) |
714 | org = o; | |
5ec10eaa | 715 | |
afdf9352 | 716 | p = name; |
323d9113 JA |
717 | depth = level; |
718 | while (depth--) | |
719 | p += sprintf(p, "%s", " "); | |
afdf9352 JA |
720 | |
721 | sprintf(p, "%s", o->name); | |
722 | ||
723 | printf("%-24s: %s\n", name, o->help); | |
323d9113 JA |
724 | } |
725 | ||
726 | static void print_option(struct fio_option *o) | |
727 | { | |
728 | struct fio_option *parent; | |
729 | struct fio_option *__o; | |
730 | unsigned int printed; | |
731 | unsigned int level; | |
732 | ||
733 | __print_option(o, NULL, 0); | |
734 | parent = o; | |
735 | level = 0; | |
736 | do { | |
737 | level++; | |
738 | printed = 0; | |
739 | ||
740 | while ((__o = find_child(o, parent)) != NULL) { | |
741 | __print_option(__o, o, level); | |
742 | o = __o; | |
743 | printed++; | |
744 | } | |
745 | ||
746 | parent = o; | |
747 | } while (printed); | |
afdf9352 JA |
748 | } |
749 | ||
0e9f7fac JA |
750 | int show_cmd_help(struct fio_option *options, const char *name) |
751 | { | |
752 | struct fio_option *o, *closest; | |
753 | unsigned int best_dist; | |
29fc6afe | 754 | int found = 0; |
320beefe JA |
755 | int show_all = 0; |
756 | ||
757 | if (!name || !strcmp(name, "all")) | |
758 | show_all = 1; | |
fd28ca49 | 759 | |
0e9f7fac JA |
760 | closest = NULL; |
761 | best_dist = -1; | |
4945ba12 | 762 | for (o = &options[0]; o->name; o++) { |
320beefe JA |
763 | int match = 0; |
764 | ||
15ca150e JA |
765 | if (o->type == FIO_OPT_DEPRECATED) |
766 | continue; | |
767 | ||
0e9f7fac | 768 | if (name) { |
7f9348f8 JA |
769 | if (!strcmp(name, o->name) || |
770 | (o->alias && !strcmp(name, o->alias))) | |
0e9f7fac JA |
771 | match = 1; |
772 | else { | |
773 | unsigned int dist; | |
774 | ||
775 | dist = string_distance(name, o->name); | |
776 | if (dist < best_dist) { | |
777 | best_dist = dist; | |
778 | closest = o; | |
779 | } | |
780 | } | |
781 | } | |
fd28ca49 JA |
782 | |
783 | if (show_all || match) { | |
29fc6afe | 784 | found = 1; |
c167dedc | 785 | if (match) |
afdf9352 | 786 | printf("%24s: %s\n", o->name, o->help); |
c167dedc | 787 | if (show_all) { |
afdf9352 | 788 | if (!o->parent) |
323d9113 | 789 | print_option(o); |
4945ba12 | 790 | continue; |
c167dedc | 791 | } |
fd28ca49 JA |
792 | } |
793 | ||
70df2f19 JA |
794 | if (!match) |
795 | continue; | |
796 | ||
0e9f7fac | 797 | show_option_help(o); |
fd28ca49 JA |
798 | } |
799 | ||
29fc6afe JA |
800 | if (found) |
801 | return 0; | |
fd28ca49 | 802 | |
0e9f7fac JA |
803 | printf("No such command: %s", name); |
804 | if (closest) { | |
805 | printf(" - showing closest match\n"); | |
806 | printf("%20s: %s\n", closest->name, closest->help); | |
807 | show_option_help(closest); | |
808 | } else | |
809 | printf("\n"); | |
810 | ||
29fc6afe | 811 | return 1; |
fd28ca49 | 812 | } |
ee738499 | 813 | |
13335ddb JA |
814 | /* |
815 | * Handle parsing of default parameters. | |
816 | */ | |
ee738499 JA |
817 | void fill_default_options(void *data, struct fio_option *options) |
818 | { | |
4945ba12 | 819 | struct fio_option *o; |
ee738499 | 820 | |
a3d741fa JA |
821 | dprint(FD_PARSE, "filling default options\n"); |
822 | ||
4945ba12 | 823 | for (o = &options[0]; o->name; o++) |
ee738499 JA |
824 | if (o->def) |
825 | handle_option(o, o->def, data); | |
ee738499 | 826 | } |
13335ddb JA |
827 | |
828 | /* | |
829 | * Sanitize the options structure. For now it just sets min/max for bool | |
5b0a8880 | 830 | * values and whether both callback and offsets are given. |
13335ddb JA |
831 | */ |
832 | void options_init(struct fio_option *options) | |
833 | { | |
4945ba12 | 834 | struct fio_option *o; |
13335ddb | 835 | |
a3d741fa JA |
836 | dprint(FD_PARSE, "init options\n"); |
837 | ||
4945ba12 | 838 | for (o = &options[0]; o->name; o++) { |
15ca150e JA |
839 | if (o->type == FIO_OPT_DEPRECATED) |
840 | continue; | |
13335ddb JA |
841 | if (o->type == FIO_OPT_BOOL) { |
842 | o->minval = 0; | |
843 | o->maxval = 1; | |
844 | } | |
5ec10eaa JA |
845 | if (o->type == FIO_OPT_STR_SET && o->def) { |
846 | fprintf(stderr, "Option %s: string set option with" | |
847 | " default will always be true\n", | |
848 | o->name); | |
849 | } | |
850 | if (!o->cb && !o->off1) { | |
851 | fprintf(stderr, "Option %s: neither cb nor offset" | |
852 | " given\n", o->name); | |
853 | } | |
af52b345 | 854 | if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE) |
b1ec1da6 | 855 | continue; |
5ec10eaa JA |
856 | if (o->cb && (o->off1 || o->off2 || o->off3 || o->off4)) { |
857 | fprintf(stderr, "Option %s: both cb and offset given\n", | |
858 | o->name); | |
859 | } | |
13335ddb JA |
860 | } |
861 | } |