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 | 16 | static struct fio_option *fio_options; |
d6978a32 | 17 | extern unsigned int fio_get_kb_base(void *); |
3b8b7135 | 18 | |
f085737f JA |
19 | static int vp_cmp(const void *p1, const void *p2) |
20 | { | |
21 | const struct value_pair *vp1 = p1; | |
22 | const struct value_pair *vp2 = p2; | |
23 | ||
24 | return strlen(vp2->ival) - strlen(vp1->ival); | |
25 | } | |
26 | ||
27 | static void posval_sort(struct fio_option *o, struct value_pair *vpmap) | |
28 | { | |
29 | const struct value_pair *vp; | |
30 | int entries; | |
31 | ||
32 | memset(vpmap, 0, PARSE_MAX_VP * sizeof(struct value_pair)); | |
33 | ||
34 | for (entries = 0; entries < PARSE_MAX_VP; entries++) { | |
35 | vp = &o->posval[entries]; | |
36 | if (!vp->ival || vp->ival[0] == '\0') | |
37 | break; | |
38 | ||
39 | memcpy(&vpmap[entries], vp, sizeof(*vp)); | |
40 | } | |
41 | ||
42 | qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp); | |
43 | } | |
44 | ||
d447a8c2 | 45 | static void show_option_range(struct fio_option *o, FILE *out) |
b1ec1da6 JA |
46 | { |
47 | if (!o->minval && !o->maxval) | |
48 | return; | |
49 | ||
d447a8c2 | 50 | fprintf(out, "%20s: min=%d", "range", o->minval); |
3980127d | 51 | if (o->maxval) |
d447a8c2 JA |
52 | fprintf(out, ", max=%d", o->maxval); |
53 | fprintf(out, "\n"); | |
b1ec1da6 JA |
54 | } |
55 | ||
56 | static void show_option_values(struct fio_option *o) | |
57 | { | |
b1ec1da6 JA |
58 | int i = 0; |
59 | ||
60 | do { | |
7837213b | 61 | const struct value_pair *vp = &o->posval[i]; |
b1ec1da6 | 62 | |
7837213b JA |
63 | if (!vp->ival) |
64 | break; | |
b1ec1da6 | 65 | |
7837213b JA |
66 | printf("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival); |
67 | if (vp->help) | |
68 | printf(" %s", vp->help); | |
69 | printf("\n"); | |
b1ec1da6 JA |
70 | i++; |
71 | } while (i < PARSE_MAX_VP); | |
72 | ||
73 | if (i) | |
74 | printf("\n"); | |
75 | } | |
76 | ||
d447a8c2 JA |
77 | static void show_option_help(struct fio_option *o, FILE *out) |
78 | { | |
79 | const char *typehelp[] = { | |
80 | "string (opt=bla)", | |
81 | "string with possible k/m/g postfix (opt=4k)", | |
82 | "string with time postfix (opt=10s)", | |
83 | "string (opt=bla)", | |
84 | "string with dual range (opt=1k-4k,4k-8k)", | |
85 | "integer value (opt=100)", | |
86 | "boolean value (opt=1)", | |
87 | "no argument (opt)", | |
88 | }; | |
89 | ||
90 | if (o->alias) | |
91 | fprintf(out, "%20s: %s\n", "alias", o->alias); | |
92 | ||
93 | fprintf(out, "%20s: %s\n", "type", typehelp[o->type]); | |
94 | fprintf(out, "%20s: %s\n", "default", o->def ? o->def : "no default"); | |
95 | show_option_range(o, stdout); | |
96 | show_option_values(o); | |
97 | } | |
98 | ||
cb2c86fd JA |
99 | static unsigned long get_mult_time(char c) |
100 | { | |
101 | switch (c) { | |
5ec10eaa JA |
102 | case 'm': |
103 | case 'M': | |
104 | return 60; | |
105 | case 'h': | |
106 | case 'H': | |
107 | return 60 * 60; | |
108 | case 'd': | |
109 | case 'D': | |
110 | return 24 * 60 * 60; | |
111 | default: | |
112 | return 1; | |
cb2c86fd JA |
113 | } |
114 | } | |
115 | ||
d6978a32 | 116 | static unsigned long long get_mult_bytes(char c, void *data) |
cb2c86fd | 117 | { |
d6978a32 | 118 | unsigned int kb_base = fio_get_kb_base(data); |
a639f0bb JA |
119 | unsigned long long ret = 1; |
120 | ||
cb2c86fd | 121 | switch (c) { |
a639f0bb JA |
122 | default: |
123 | break; | |
b09da8fa JA |
124 | case 'p': |
125 | case 'P': | |
d6978a32 | 126 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
127 | case 't': |
128 | case 'T': | |
d6978a32 | 129 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
130 | case 'g': |
131 | case 'G': | |
d6978a32 | 132 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
133 | case 'm': |
134 | case 'M': | |
d6978a32 | 135 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
136 | case 'k': |
137 | case 'K': | |
d6978a32 | 138 | ret *= (unsigned long long) kb_base; |
a639f0bb | 139 | break; |
cb2c86fd | 140 | } |
a639f0bb JA |
141 | |
142 | return ret; | |
cb2c86fd JA |
143 | } |
144 | ||
145 | /* | |
e1f36503 | 146 | * convert string into decimal value, noting any size suffix |
cb2c86fd | 147 | */ |
d6978a32 | 148 | int str_to_decimal(const char *str, long long *val, int kilo, void *data) |
cb2c86fd | 149 | { |
b347f9da | 150 | int len, base; |
cb2c86fd | 151 | |
cb2c86fd | 152 | len = strlen(str); |
f90eff5a JA |
153 | if (!len) |
154 | return 1; | |
cb2c86fd | 155 | |
b347f9da JA |
156 | if (strstr(str, "0x") || strstr(str, "0X")) |
157 | base = 16; | |
158 | else | |
159 | base = 10; | |
160 | ||
161 | *val = strtoll(str, NULL, base); | |
cda866ca | 162 | if (*val == LONG_MAX && errno == ERANGE) |
cb2c86fd JA |
163 | return 1; |
164 | ||
165 | if (kilo) | |
d6978a32 | 166 | *val *= get_mult_bytes(str[len - 1], data); |
cb2c86fd JA |
167 | else |
168 | *val *= get_mult_time(str[len - 1]); | |
787f7e95 | 169 | |
cb2c86fd JA |
170 | return 0; |
171 | } | |
172 | ||
d6978a32 | 173 | static int check_str_bytes(const char *p, long long *val, void *data) |
cb2c86fd | 174 | { |
d6978a32 | 175 | return str_to_decimal(p, val, 1, data); |
cb2c86fd JA |
176 | } |
177 | ||
63f29372 | 178 | static int check_str_time(const char *p, long long *val) |
cb2c86fd | 179 | { |
d6978a32 | 180 | return str_to_decimal(p, val, 0, NULL); |
cb2c86fd JA |
181 | } |
182 | ||
183 | void strip_blank_front(char **p) | |
184 | { | |
185 | char *s = *p; | |
186 | ||
187 | while (isspace(*s)) | |
188 | s++; | |
4d651dad JA |
189 | |
190 | *p = s; | |
cb2c86fd JA |
191 | } |
192 | ||
193 | void strip_blank_end(char *p) | |
194 | { | |
853ee7fc | 195 | char *start = p, *s; |
523bfadb JA |
196 | |
197 | s = strchr(p, ';'); | |
198 | if (s) | |
199 | *s = '\0'; | |
200 | s = strchr(p, '#'); | |
201 | if (s) | |
202 | *s = '\0'; | |
203 | if (s) | |
204 | p = s; | |
205 | ||
7f7e6e59 | 206 | s = p + strlen(p); |
853ee7fc | 207 | while ((isspace(*s) || iscntrl(*s)) && (s > start)) |
cb2c86fd JA |
208 | s--; |
209 | ||
210 | *(s + 1) = '\0'; | |
211 | } | |
212 | ||
d6978a32 | 213 | static int check_range_bytes(const char *str, long *val, void *data) |
cb2c86fd JA |
214 | { |
215 | char suffix; | |
216 | ||
787f7e95 JA |
217 | if (!strlen(str)) |
218 | return 1; | |
219 | ||
cb2c86fd | 220 | if (sscanf(str, "%lu%c", val, &suffix) == 2) { |
d6978a32 | 221 | *val *= get_mult_bytes(suffix, data); |
cb2c86fd JA |
222 | return 0; |
223 | } | |
224 | ||
225 | if (sscanf(str, "%lu", val) == 1) | |
226 | return 0; | |
227 | ||
228 | return 1; | |
229 | } | |
230 | ||
63f29372 | 231 | static int check_int(const char *p, int *val) |
cb2c86fd | 232 | { |
787f7e95 JA |
233 | if (!strlen(p)) |
234 | return 1; | |
d78ee463 | 235 | if (strstr(p, "0x") || strstr(p, "0X")) { |
a61bdfd8 JA |
236 | if (sscanf(p, "%x", val) == 1) |
237 | return 0; | |
238 | } else { | |
239 | if (sscanf(p, "%u", val) == 1) | |
240 | return 0; | |
241 | } | |
cb2c86fd | 242 | |
e1f36503 JA |
243 | return 1; |
244 | } | |
cb2c86fd | 245 | |
e1f36503 JA |
246 | static struct fio_option *find_option(struct fio_option *options, |
247 | const char *opt) | |
248 | { | |
4945ba12 | 249 | struct fio_option *o; |
cb2c86fd | 250 | |
4945ba12 | 251 | for (o = &options[0]; o->name; o++) { |
e1f36503 JA |
252 | if (!strcmp(o->name, opt)) |
253 | return o; | |
03b74b3e JA |
254 | else if (o->alias && !strcmp(o->alias, opt)) |
255 | return o; | |
33963c6c | 256 | } |
cb2c86fd | 257 | |
e1f36503 | 258 | return NULL; |
cb2c86fd JA |
259 | } |
260 | ||
17abbe89 JA |
261 | #define val_store(ptr, val, off, data) \ |
262 | do { \ | |
263 | ptr = td_var((data), (off)); \ | |
264 | *ptr = (val); \ | |
265 | } while (0) | |
266 | ||
f90eff5a | 267 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
787f7e95 | 268 | int first, int more) |
cb2c86fd | 269 | { |
63f29372 JA |
270 | int il, *ilp; |
271 | long long ull, *ullp; | |
272 | long ul1, ul2; | |
b4692828 | 273 | char **cp; |
e1f36503 | 274 | int ret = 0, is_time = 0; |
cb2c86fd | 275 | |
a3d741fa JA |
276 | dprint(FD_PARSE, "__handle_option=%s, type=%d, ptr=%s\n", o->name, |
277 | o->type, ptr); | |
278 | ||
e3cedca7 | 279 | if (!ptr && o->type != FIO_OPT_STR_SET && o->type != FIO_OPT_STR) { |
08e26e35 JA |
280 | fprintf(stderr, "Option %s requires an argument\n", o->name); |
281 | return 1; | |
282 | } | |
283 | ||
e1f36503 JA |
284 | switch (o->type) { |
285 | case FIO_OPT_STR: { | |
286 | fio_opt_str_fn *fn = o->cb; | |
b1ec1da6 | 287 | const struct value_pair *vp; |
f085737f | 288 | struct value_pair posval[PARSE_MAX_VP]; |
b1ec1da6 JA |
289 | int i; |
290 | ||
f085737f JA |
291 | posval_sort(o, posval); |
292 | ||
b1ec1da6 | 293 | for (i = 0; i < PARSE_MAX_VP; i++) { |
f085737f | 294 | vp = &posval[i]; |
b1ec1da6 JA |
295 | if (!vp->ival || vp->ival[0] == '\0') |
296 | break; | |
6612a27b | 297 | ret = 1; |
b1ec1da6 JA |
298 | if (!strncmp(vp->ival, ptr, strlen(vp->ival))) { |
299 | ret = 0; | |
300 | if (!o->off1) | |
301 | break; | |
302 | val_store(ilp, vp->oval, o->off1, data); | |
303 | break; | |
304 | } | |
305 | } | |
cb2c86fd | 306 | |
b1ec1da6 JA |
307 | if (ret) |
308 | show_option_values(o); | |
309 | else if (fn) | |
310 | ret = fn(data, ptr); | |
e1f36503 JA |
311 | break; |
312 | } | |
313 | case FIO_OPT_STR_VAL_TIME: | |
314 | is_time = 1; | |
f7fa2653 | 315 | case FIO_OPT_INT: |
e01b22b8 | 316 | case FIO_OPT_STR_VAL: { |
e1f36503 JA |
317 | fio_opt_str_val_fn *fn = o->cb; |
318 | ||
319 | if (is_time) | |
320 | ret = check_str_time(ptr, &ull); | |
321 | else | |
d6978a32 | 322 | ret = check_str_bytes(ptr, &ull, data); |
e1f36503 JA |
323 | |
324 | if (ret) | |
325 | break; | |
326 | ||
db8e0165 | 327 | if (o->maxval && ull > o->maxval) { |
5ec10eaa JA |
328 | fprintf(stderr, "max value out of range: %lld" |
329 | " (%d max)\n", ull, o->maxval); | |
db8e0165 JA |
330 | return 1; |
331 | } | |
332 | if (o->minval && ull < o->minval) { | |
5ec10eaa JA |
333 | fprintf(stderr, "min value out of range: %lld" |
334 | " (%d min)\n", ull, o->minval); | |
db8e0165 JA |
335 | return 1; |
336 | } | |
e1f36503 JA |
337 | |
338 | if (fn) | |
339 | ret = fn(data, &ull); | |
340 | else { | |
e01b22b8 | 341 | if (o->type == FIO_OPT_INT) { |
17abbe89 JA |
342 | if (first) |
343 | val_store(ilp, ull, o->off1, data); | |
787f7e95 | 344 | if (!more && o->off2) |
17abbe89 | 345 | val_store(ilp, ull, o->off2, data); |
75e6f36f | 346 | } else { |
17abbe89 JA |
347 | if (first) |
348 | val_store(ullp, ull, o->off1, data); | |
787f7e95 | 349 | if (!more && o->off2) |
17abbe89 | 350 | val_store(ullp, ull, o->off2, data); |
75e6f36f | 351 | } |
e1f36503 JA |
352 | } |
353 | break; | |
354 | } | |
af52b345 JA |
355 | case FIO_OPT_STR_STORE: { |
356 | fio_opt_str_fn *fn = o->cb; | |
357 | ||
e1f36503 JA |
358 | cp = td_var(data, o->off1); |
359 | *cp = strdup(ptr); | |
af52b345 JA |
360 | if (fn) { |
361 | ret = fn(data, ptr); | |
362 | if (ret) { | |
363 | free(*cp); | |
364 | *cp = NULL; | |
365 | } | |
366 | } | |
e1f36503 | 367 | break; |
af52b345 | 368 | } |
e1f36503 | 369 | case FIO_OPT_RANGE: { |
b765a372 | 370 | char tmp[128]; |
e1f36503 JA |
371 | char *p1, *p2; |
372 | ||
0bbab0e7 | 373 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
b765a372 JA |
374 | |
375 | p1 = strchr(tmp, '-'); | |
e1f36503 | 376 | if (!p1) { |
0c9baf91 JA |
377 | p1 = strchr(tmp, ':'); |
378 | if (!p1) { | |
379 | ret = 1; | |
380 | break; | |
381 | } | |
e1f36503 JA |
382 | } |
383 | ||
384 | p2 = p1 + 1; | |
385 | *p1 = '\0'; | |
b765a372 | 386 | p1 = tmp; |
e1f36503 JA |
387 | |
388 | ret = 1; | |
d6978a32 JA |
389 | if (!check_range_bytes(p1, &ul1, data) && |
390 | !check_range_bytes(p2, &ul2, data)) { | |
e1f36503 | 391 | ret = 0; |
e1f36503 | 392 | if (ul1 > ul2) { |
f90eff5a JA |
393 | unsigned long foo = ul1; |
394 | ||
395 | ul1 = ul2; | |
396 | ul2 = foo; | |
397 | } | |
398 | ||
399 | if (first) { | |
17abbe89 JA |
400 | val_store(ilp, ul1, o->off1, data); |
401 | val_store(ilp, ul2, o->off2, data); | |
402 | } | |
97e8cd44 | 403 | if (o->off3 && o->off4) { |
17abbe89 JA |
404 | val_store(ilp, ul1, o->off3, data); |
405 | val_store(ilp, ul2, o->off4, data); | |
e1f36503 | 406 | } |
17abbe89 JA |
407 | } |
408 | ||
e1f36503 JA |
409 | break; |
410 | } | |
13335ddb | 411 | case FIO_OPT_BOOL: { |
e1f36503 JA |
412 | fio_opt_int_fn *fn = o->cb; |
413 | ||
414 | ret = check_int(ptr, &il); | |
415 | if (ret) | |
416 | break; | |
417 | ||
db8e0165 | 418 | if (o->maxval && il > (int) o->maxval) { |
5ec10eaa JA |
419 | fprintf(stderr, "max value out of range: %d (%d max)\n", |
420 | il, o->maxval); | |
db8e0165 JA |
421 | return 1; |
422 | } | |
423 | if (o->minval && il < o->minval) { | |
5ec10eaa JA |
424 | fprintf(stderr, "min value out of range: %d (%d min)\n", |
425 | il, o->minval); | |
db8e0165 JA |
426 | return 1; |
427 | } | |
e1f36503 | 428 | |
76a43db4 JA |
429 | if (o->neg) |
430 | il = !il; | |
431 | ||
e1f36503 JA |
432 | if (fn) |
433 | ret = fn(data, &il); | |
434 | else { | |
17abbe89 JA |
435 | if (first) |
436 | val_store(ilp, il, o->off1, data); | |
787f7e95 | 437 | if (!more && o->off2) |
17abbe89 | 438 | val_store(ilp, il, o->off2, data); |
e1f36503 JA |
439 | } |
440 | break; | |
441 | } | |
442 | case FIO_OPT_STR_SET: { | |
443 | fio_opt_str_set_fn *fn = o->cb; | |
444 | ||
445 | if (fn) | |
446 | ret = fn(data); | |
447 | else { | |
17abbe89 JA |
448 | if (first) |
449 | val_store(ilp, 1, o->off1, data); | |
787f7e95 | 450 | if (!more && o->off2) |
17abbe89 | 451 | val_store(ilp, 1, o->off2, data); |
e1f36503 JA |
452 | } |
453 | break; | |
454 | } | |
15ca150e JA |
455 | case FIO_OPT_DEPRECATED: |
456 | fprintf(stdout, "Option %s is deprecated\n", o->name); | |
457 | break; | |
e1f36503 | 458 | default: |
1e97cce9 | 459 | fprintf(stderr, "Bad option type %u\n", o->type); |
e1f36503 JA |
460 | ret = 1; |
461 | } | |
cb2c86fd | 462 | |
70a4c0c8 JA |
463 | if (ret) |
464 | return ret; | |
465 | ||
d447a8c2 | 466 | if (o->verify) { |
70a4c0c8 | 467 | ret = o->verify(o, data); |
d447a8c2 JA |
468 | if (ret) { |
469 | fprintf(stderr,"Correct format for offending option\n"); | |
470 | fprintf(stderr, "%20s: %s\n", o->name, o->help); | |
471 | show_option_help(o, stderr); | |
472 | } | |
473 | } | |
70a4c0c8 | 474 | |
e1f36503 | 475 | return ret; |
cb2c86fd JA |
476 | } |
477 | ||
7c8f1a5c | 478 | static int handle_option(struct fio_option *o, const char *__ptr, void *data) |
f90eff5a | 479 | { |
7c8f1a5c | 480 | char *ptr, *ptr2 = NULL; |
787f7e95 | 481 | int r1, r2; |
f90eff5a | 482 | |
7c8f1a5c JA |
483 | dprint(FD_PARSE, "handle_option=%s, ptr=%s\n", o->name, __ptr); |
484 | ||
485 | ptr = NULL; | |
486 | if (__ptr) | |
487 | ptr = strdup(__ptr); | |
a3d741fa | 488 | |
f90eff5a | 489 | /* |
787f7e95 JA |
490 | * See if we have a second set of parameters, hidden after a comma. |
491 | * Do this before parsing the first round, to check if we should | |
492 | * copy set 1 options to set 2. | |
f90eff5a | 493 | */ |
ad231bc4 JB |
494 | if (ptr && |
495 | (o->type != FIO_OPT_STR_STORE) && | |
496 | (o->type != FIO_OPT_STR)) { | |
92b586f8 | 497 | ptr2 = strchr(ptr, ','); |
7c8f1a5c JA |
498 | if (ptr2 && *(ptr2 + 1) == '\0') |
499 | *ptr2 = '\0'; | |
0c9baf91 JA |
500 | if (!ptr2) |
501 | ptr2 = strchr(ptr, ':'); | |
b486f76a JA |
502 | if (!ptr2) |
503 | ptr2 = strchr(ptr, '-'); | |
0c9baf91 | 504 | } |
787f7e95 JA |
505 | |
506 | /* | |
507 | * Don't return early if parsing the first option fails - if | |
508 | * we are doing multiple arguments, we can allow the first one | |
509 | * being empty. | |
510 | */ | |
511 | r1 = __handle_option(o, ptr, data, 1, !!ptr2); | |
512 | ||
7c8f1a5c JA |
513 | if (!ptr2) { |
514 | if (ptr) | |
515 | free(ptr); | |
787f7e95 | 516 | return r1; |
7c8f1a5c | 517 | } |
f90eff5a JA |
518 | |
519 | ptr2++; | |
787f7e95 JA |
520 | r2 = __handle_option(o, ptr2, data, 0, 0); |
521 | ||
7c8f1a5c JA |
522 | if (ptr) |
523 | free(ptr); | |
787f7e95 | 524 | return r1 && r2; |
f90eff5a JA |
525 | } |
526 | ||
3b8b7135 JA |
527 | static struct fio_option *get_option(const char *opt, |
528 | struct fio_option *options, char **post) | |
529 | { | |
530 | struct fio_option *o; | |
531 | char *ret; | |
532 | ||
533 | ret = strchr(opt, '='); | |
534 | if (ret) { | |
535 | *post = ret; | |
536 | *ret = '\0'; | |
537 | ret = (char *) opt; | |
538 | (*post)++; | |
43c129b4 | 539 | strip_blank_end(ret); |
3b8b7135 JA |
540 | o = find_option(options, ret); |
541 | } else { | |
542 | o = find_option(options, opt); | |
543 | *post = NULL; | |
544 | } | |
545 | ||
546 | return o; | |
547 | } | |
548 | ||
549 | static int opt_cmp(const void *p1, const void *p2) | |
550 | { | |
551 | struct fio_option *o1, *o2; | |
552 | char *s1, *s2, *foo; | |
8cdabc1d | 553 | int prio1, prio2; |
3b8b7135 JA |
554 | |
555 | s1 = strdup(*((char **) p1)); | |
556 | s2 = strdup(*((char **) p2)); | |
557 | ||
558 | o1 = get_option(s1, fio_options, &foo); | |
559 | o2 = get_option(s2, fio_options, &foo); | |
0b9d69ec | 560 | |
8cdabc1d JA |
561 | prio1 = prio2 = 0; |
562 | if (o1) | |
563 | prio1 = o1->prio; | |
564 | if (o2) | |
565 | prio2 = o2->prio; | |
3b8b7135 JA |
566 | |
567 | free(s1); | |
568 | free(s2); | |
8cdabc1d | 569 | return prio2 - prio1; |
3b8b7135 JA |
570 | } |
571 | ||
572 | void sort_options(char **opts, struct fio_option *options, int num_opts) | |
573 | { | |
574 | fio_options = options; | |
575 | qsort(opts, num_opts, sizeof(char *), opt_cmp); | |
576 | fio_options = NULL; | |
577 | } | |
578 | ||
b4692828 JA |
579 | int parse_cmd_option(const char *opt, const char *val, |
580 | struct fio_option *options, void *data) | |
581 | { | |
582 | struct fio_option *o; | |
583 | ||
584 | o = find_option(options, opt); | |
585 | if (!o) { | |
43c129b4 | 586 | fprintf(stderr, "Bad option <%s>\n", opt); |
b4692828 JA |
587 | return 1; |
588 | } | |
589 | ||
b1508cf9 JA |
590 | if (!handle_option(o, val, data)) |
591 | return 0; | |
592 | ||
593 | fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val); | |
594 | return 1; | |
b4692828 JA |
595 | } |
596 | ||
88b5a391 AC |
597 | /* |
598 | * Return a copy of the input string with substrings of the form ${VARNAME} | |
599 | * substituted with the value of the environment variable VARNAME. The | |
600 | * substitution always occurs, even if VARNAME is empty or the corresponding | |
601 | * environment variable undefined. | |
602 | */ | |
603 | static char *option_dup_subs(const char *opt) | |
604 | { | |
605 | char out[OPT_LEN_MAX+1]; | |
606 | char in[OPT_LEN_MAX+1]; | |
607 | char *outptr = out; | |
608 | char *inptr = in; | |
609 | char *ch1, *ch2, *env; | |
610 | ssize_t nchr = OPT_LEN_MAX; | |
611 | size_t envlen; | |
612 | ||
613 | in[OPT_LEN_MAX] = '\0'; | |
614 | strncpy(in, opt, OPT_LEN_MAX); | |
615 | ||
616 | while (*inptr && nchr > 0) { | |
617 | if (inptr[0] == '$' && inptr[1] == '{') { | |
618 | ch2 = strchr(inptr, '}'); | |
619 | if (ch2 && inptr+1 < ch2) { | |
620 | ch1 = inptr+2; | |
621 | inptr = ch2+1; | |
622 | *ch2 = '\0'; | |
623 | ||
624 | env = getenv(ch1); | |
625 | if (env) { | |
626 | envlen = strlen(env); | |
627 | if (envlen <= nchr) { | |
628 | memcpy(outptr, env, envlen); | |
629 | outptr += envlen; | |
630 | nchr -= envlen; | |
631 | } | |
632 | } | |
633 | ||
634 | continue; | |
635 | } | |
636 | } | |
637 | ||
638 | *outptr++ = *inptr++; | |
639 | --nchr; | |
640 | } | |
641 | ||
642 | *outptr = '\0'; | |
643 | return strdup(out); | |
644 | } | |
645 | ||
e1f36503 | 646 | int parse_option(const char *opt, struct fio_option *options, void *data) |
cb2c86fd | 647 | { |
b4692828 | 648 | struct fio_option *o; |
3b8b7135 | 649 | char *post, *tmp; |
e1f36503 | 650 | |
88b5a391 | 651 | tmp = option_dup_subs(opt); |
e1f36503 | 652 | |
3b8b7135 | 653 | o = get_option(tmp, options, &post); |
e1f36503 | 654 | if (!o) { |
43c129b4 | 655 | fprintf(stderr, "Bad option <%s>\n", tmp); |
0401bca6 | 656 | free(tmp); |
e1f36503 JA |
657 | return 1; |
658 | } | |
659 | ||
0401bca6 JA |
660 | if (!handle_option(o, post, data)) { |
661 | free(tmp); | |
b1508cf9 | 662 | return 0; |
0401bca6 | 663 | } |
b1508cf9 JA |
664 | |
665 | fprintf(stderr, "fio: failed parsing %s\n", opt); | |
0401bca6 | 666 | free(tmp); |
b1508cf9 | 667 | return 1; |
e1f36503 | 668 | } |
fd28ca49 | 669 | |
0e9f7fac JA |
670 | /* |
671 | * Option match, levenshtein distance. Handy for not quite remembering what | |
672 | * the option name is. | |
673 | */ | |
674 | static int string_distance(const char *s1, const char *s2) | |
675 | { | |
676 | unsigned int s1_len = strlen(s1); | |
677 | unsigned int s2_len = strlen(s2); | |
678 | unsigned int *p, *q, *r; | |
679 | unsigned int i, j; | |
680 | ||
681 | p = malloc(sizeof(unsigned int) * (s2_len + 1)); | |
682 | q = malloc(sizeof(unsigned int) * (s2_len + 1)); | |
683 | ||
684 | p[0] = 0; | |
685 | for (i = 1; i <= s2_len; i++) | |
686 | p[i] = p[i - 1] + 1; | |
687 | ||
688 | for (i = 1; i <= s1_len; i++) { | |
689 | q[0] = p[0] + 1; | |
690 | for (j = 1; j <= s2_len; j++) { | |
691 | unsigned int sub = p[j - 1]; | |
692 | ||
693 | if (s1[i - 1] != s2[j - 1]) | |
694 | sub++; | |
695 | ||
696 | q[j] = min(p[j] + 1, min(q[j - 1] + 1, sub)); | |
697 | } | |
698 | r = p; | |
699 | p = q; | |
700 | q = r; | |
701 | } | |
702 | ||
703 | i = p[s2_len]; | |
704 | free(p); | |
705 | free(q); | |
706 | return i; | |
707 | } | |
708 | ||
afdf9352 JA |
709 | static struct fio_option *find_child(struct fio_option *options, |
710 | struct fio_option *o) | |
711 | { | |
712 | struct fio_option *__o; | |
713 | ||
fdf28744 JA |
714 | for (__o = options + 1; __o->name; __o++) |
715 | if (__o->parent && !strcmp(__o->parent, o->name)) | |
afdf9352 JA |
716 | return __o; |
717 | ||
718 | return NULL; | |
719 | } | |
720 | ||
323d9113 JA |
721 | static void __print_option(struct fio_option *o, struct fio_option *org, |
722 | int level) | |
afdf9352 JA |
723 | { |
724 | char name[256], *p; | |
323d9113 | 725 | int depth; |
afdf9352 JA |
726 | |
727 | if (!o) | |
728 | return; | |
ef9aff52 JA |
729 | if (!org) |
730 | org = o; | |
5ec10eaa | 731 | |
afdf9352 | 732 | p = name; |
323d9113 JA |
733 | depth = level; |
734 | while (depth--) | |
735 | p += sprintf(p, "%s", " "); | |
afdf9352 JA |
736 | |
737 | sprintf(p, "%s", o->name); | |
738 | ||
739 | printf("%-24s: %s\n", name, o->help); | |
323d9113 JA |
740 | } |
741 | ||
742 | static void print_option(struct fio_option *o) | |
743 | { | |
744 | struct fio_option *parent; | |
745 | struct fio_option *__o; | |
746 | unsigned int printed; | |
747 | unsigned int level; | |
748 | ||
749 | __print_option(o, NULL, 0); | |
750 | parent = o; | |
751 | level = 0; | |
752 | do { | |
753 | level++; | |
754 | printed = 0; | |
755 | ||
756 | while ((__o = find_child(o, parent)) != NULL) { | |
757 | __print_option(__o, o, level); | |
758 | o = __o; | |
759 | printed++; | |
760 | } | |
761 | ||
762 | parent = o; | |
763 | } while (printed); | |
afdf9352 JA |
764 | } |
765 | ||
0e9f7fac JA |
766 | int show_cmd_help(struct fio_option *options, const char *name) |
767 | { | |
768 | struct fio_option *o, *closest; | |
769 | unsigned int best_dist; | |
29fc6afe | 770 | int found = 0; |
320beefe JA |
771 | int show_all = 0; |
772 | ||
773 | if (!name || !strcmp(name, "all")) | |
774 | show_all = 1; | |
fd28ca49 | 775 | |
0e9f7fac JA |
776 | closest = NULL; |
777 | best_dist = -1; | |
4945ba12 | 778 | for (o = &options[0]; o->name; o++) { |
320beefe JA |
779 | int match = 0; |
780 | ||
15ca150e JA |
781 | if (o->type == FIO_OPT_DEPRECATED) |
782 | continue; | |
783 | ||
0e9f7fac | 784 | if (name) { |
7f9348f8 JA |
785 | if (!strcmp(name, o->name) || |
786 | (o->alias && !strcmp(name, o->alias))) | |
0e9f7fac JA |
787 | match = 1; |
788 | else { | |
789 | unsigned int dist; | |
790 | ||
791 | dist = string_distance(name, o->name); | |
792 | if (dist < best_dist) { | |
793 | best_dist = dist; | |
794 | closest = o; | |
795 | } | |
796 | } | |
797 | } | |
fd28ca49 JA |
798 | |
799 | if (show_all || match) { | |
29fc6afe | 800 | found = 1; |
c167dedc | 801 | if (match) |
afdf9352 | 802 | printf("%24s: %s\n", o->name, o->help); |
c167dedc | 803 | if (show_all) { |
afdf9352 | 804 | if (!o->parent) |
323d9113 | 805 | print_option(o); |
4945ba12 | 806 | continue; |
c167dedc | 807 | } |
fd28ca49 JA |
808 | } |
809 | ||
70df2f19 JA |
810 | if (!match) |
811 | continue; | |
812 | ||
d447a8c2 | 813 | show_option_help(o, stdout); |
fd28ca49 JA |
814 | } |
815 | ||
29fc6afe JA |
816 | if (found) |
817 | return 0; | |
fd28ca49 | 818 | |
0e9f7fac JA |
819 | printf("No such command: %s", name); |
820 | if (closest) { | |
821 | printf(" - showing closest match\n"); | |
822 | printf("%20s: %s\n", closest->name, closest->help); | |
d447a8c2 | 823 | show_option_help(closest, stdout); |
0e9f7fac JA |
824 | } else |
825 | printf("\n"); | |
826 | ||
29fc6afe | 827 | return 1; |
fd28ca49 | 828 | } |
ee738499 | 829 | |
13335ddb JA |
830 | /* |
831 | * Handle parsing of default parameters. | |
832 | */ | |
ee738499 JA |
833 | void fill_default_options(void *data, struct fio_option *options) |
834 | { | |
4945ba12 | 835 | struct fio_option *o; |
ee738499 | 836 | |
a3d741fa JA |
837 | dprint(FD_PARSE, "filling default options\n"); |
838 | ||
4945ba12 | 839 | for (o = &options[0]; o->name; o++) |
ee738499 JA |
840 | if (o->def) |
841 | handle_option(o, o->def, data); | |
ee738499 | 842 | } |
13335ddb JA |
843 | |
844 | /* | |
845 | * Sanitize the options structure. For now it just sets min/max for bool | |
5b0a8880 | 846 | * values and whether both callback and offsets are given. |
13335ddb JA |
847 | */ |
848 | void options_init(struct fio_option *options) | |
849 | { | |
4945ba12 | 850 | struct fio_option *o; |
13335ddb | 851 | |
a3d741fa JA |
852 | dprint(FD_PARSE, "init options\n"); |
853 | ||
4945ba12 | 854 | for (o = &options[0]; o->name; o++) { |
15ca150e JA |
855 | if (o->type == FIO_OPT_DEPRECATED) |
856 | continue; | |
13335ddb JA |
857 | if (o->type == FIO_OPT_BOOL) { |
858 | o->minval = 0; | |
859 | o->maxval = 1; | |
860 | } | |
5ec10eaa JA |
861 | if (o->type == FIO_OPT_STR_SET && o->def) { |
862 | fprintf(stderr, "Option %s: string set option with" | |
863 | " default will always be true\n", | |
864 | o->name); | |
865 | } | |
866 | if (!o->cb && !o->off1) { | |
867 | fprintf(stderr, "Option %s: neither cb nor offset" | |
868 | " given\n", o->name); | |
869 | } | |
af52b345 | 870 | if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE) |
b1ec1da6 | 871 | continue; |
5ec10eaa JA |
872 | if (o->cb && (o->off1 || o->off2 || o->off3 || o->off4)) { |
873 | fprintf(stderr, "Option %s: both cb and offset given\n", | |
874 | o->name); | |
875 | } | |
13335ddb JA |
876 | } |
877 | } |