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" |
9f988e2e | 15 | #include "options.h" |
cb2c86fd | 16 | |
3b8b7135 | 17 | static struct fio_option *fio_options; |
d6978a32 | 18 | extern unsigned int fio_get_kb_base(void *); |
3b8b7135 | 19 | |
f085737f JA |
20 | static int vp_cmp(const void *p1, const void *p2) |
21 | { | |
22 | const struct value_pair *vp1 = p1; | |
23 | const struct value_pair *vp2 = p2; | |
24 | ||
25 | return strlen(vp2->ival) - strlen(vp1->ival); | |
26 | } | |
27 | ||
28 | static void posval_sort(struct fio_option *o, struct value_pair *vpmap) | |
29 | { | |
30 | const struct value_pair *vp; | |
31 | int entries; | |
32 | ||
33 | memset(vpmap, 0, PARSE_MAX_VP * sizeof(struct value_pair)); | |
34 | ||
35 | for (entries = 0; entries < PARSE_MAX_VP; entries++) { | |
36 | vp = &o->posval[entries]; | |
37 | if (!vp->ival || vp->ival[0] == '\0') | |
38 | break; | |
39 | ||
40 | memcpy(&vpmap[entries], vp, sizeof(*vp)); | |
41 | } | |
42 | ||
43 | qsort(vpmap, entries, sizeof(struct value_pair), vp_cmp); | |
44 | } | |
45 | ||
d447a8c2 | 46 | static void show_option_range(struct fio_option *o, FILE *out) |
b1ec1da6 JA |
47 | { |
48 | if (!o->minval && !o->maxval) | |
49 | return; | |
50 | ||
d447a8c2 | 51 | fprintf(out, "%20s: min=%d", "range", o->minval); |
3980127d | 52 | if (o->maxval) |
d447a8c2 JA |
53 | fprintf(out, ", max=%d", o->maxval); |
54 | fprintf(out, "\n"); | |
b1ec1da6 JA |
55 | } |
56 | ||
57 | static void show_option_values(struct fio_option *o) | |
58 | { | |
b1ec1da6 JA |
59 | int i = 0; |
60 | ||
61 | do { | |
7837213b | 62 | const struct value_pair *vp = &o->posval[i]; |
b1ec1da6 | 63 | |
7837213b JA |
64 | if (!vp->ival) |
65 | break; | |
b1ec1da6 | 66 | |
7837213b JA |
67 | printf("%20s: %-10s", i == 0 ? "valid values" : "", vp->ival); |
68 | if (vp->help) | |
69 | printf(" %s", vp->help); | |
70 | printf("\n"); | |
b1ec1da6 JA |
71 | i++; |
72 | } while (i < PARSE_MAX_VP); | |
73 | ||
74 | if (i) | |
75 | printf("\n"); | |
76 | } | |
77 | ||
d447a8c2 JA |
78 | static void show_option_help(struct fio_option *o, FILE *out) |
79 | { | |
80 | const char *typehelp[] = { | |
07b3232d | 81 | "invalid", |
d447a8c2 JA |
82 | "string (opt=bla)", |
83 | "string with possible k/m/g postfix (opt=4k)", | |
84 | "string with time postfix (opt=10s)", | |
85 | "string (opt=bla)", | |
86 | "string with dual range (opt=1k-4k,4k-8k)", | |
87 | "integer value (opt=100)", | |
88 | "boolean value (opt=1)", | |
89 | "no argument (opt)", | |
07b3232d | 90 | "deprecated", |
d447a8c2 JA |
91 | }; |
92 | ||
93 | if (o->alias) | |
94 | fprintf(out, "%20s: %s\n", "alias", o->alias); | |
95 | ||
96 | fprintf(out, "%20s: %s\n", "type", typehelp[o->type]); | |
97 | fprintf(out, "%20s: %s\n", "default", o->def ? o->def : "no default"); | |
07b3232d JA |
98 | if (o->prof_name) |
99 | fprintf(out, "%20s: only for profile '%s'\n", "valid", o->prof_name); | |
d447a8c2 JA |
100 | show_option_range(o, stdout); |
101 | show_option_values(o); | |
102 | } | |
103 | ||
cb2c86fd JA |
104 | static unsigned long get_mult_time(char c) |
105 | { | |
106 | switch (c) { | |
5ec10eaa JA |
107 | case 'm': |
108 | case 'M': | |
109 | return 60; | |
110 | case 'h': | |
111 | case 'H': | |
112 | return 60 * 60; | |
113 | case 'd': | |
114 | case 'D': | |
115 | return 24 * 60 * 60; | |
116 | default: | |
117 | return 1; | |
cb2c86fd JA |
118 | } |
119 | } | |
120 | ||
d6978a32 | 121 | static unsigned long long get_mult_bytes(char c, void *data) |
cb2c86fd | 122 | { |
d6978a32 | 123 | unsigned int kb_base = fio_get_kb_base(data); |
a639f0bb JA |
124 | unsigned long long ret = 1; |
125 | ||
cb2c86fd | 126 | switch (c) { |
a639f0bb JA |
127 | default: |
128 | break; | |
b09da8fa JA |
129 | case 'p': |
130 | case 'P': | |
d6978a32 | 131 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
132 | case 't': |
133 | case 'T': | |
d6978a32 | 134 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
135 | case 'g': |
136 | case 'G': | |
d6978a32 | 137 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
138 | case 'm': |
139 | case 'M': | |
d6978a32 | 140 | ret *= (unsigned long long) kb_base; |
a639f0bb JA |
141 | case 'k': |
142 | case 'K': | |
d6978a32 | 143 | ret *= (unsigned long long) kb_base; |
a639f0bb | 144 | break; |
cb2c86fd | 145 | } |
a639f0bb JA |
146 | |
147 | return ret; | |
cb2c86fd JA |
148 | } |
149 | ||
150 | /* | |
e1f36503 | 151 | * convert string into decimal value, noting any size suffix |
cb2c86fd | 152 | */ |
d6978a32 | 153 | int str_to_decimal(const char *str, long long *val, int kilo, void *data) |
cb2c86fd | 154 | { |
b347f9da | 155 | int len, base; |
cb2c86fd | 156 | |
cb2c86fd | 157 | len = strlen(str); |
f90eff5a JA |
158 | if (!len) |
159 | return 1; | |
cb2c86fd | 160 | |
b347f9da JA |
161 | if (strstr(str, "0x") || strstr(str, "0X")) |
162 | base = 16; | |
163 | else | |
164 | base = 10; | |
165 | ||
166 | *val = strtoll(str, NULL, base); | |
cda866ca | 167 | if (*val == LONG_MAX && errno == ERANGE) |
cb2c86fd JA |
168 | return 1; |
169 | ||
975462a6 JA |
170 | if (kilo) { |
171 | const char *p; | |
172 | /* | |
173 | * if the last char is 'b' or 'B', the user likely used | |
174 | * "1gb" instead of just "1g". If the second to last is also | |
175 | * a letter, adjust. | |
176 | */ | |
177 | p = str + len - 1; | |
178 | if ((*p == 'b' || *p == 'B') && isalpha(*(p - 1))) | |
179 | --p; | |
180 | ||
181 | *val *= get_mult_bytes(*p, data); | |
182 | } else | |
cb2c86fd | 183 | *val *= get_mult_time(str[len - 1]); |
787f7e95 | 184 | |
cb2c86fd JA |
185 | return 0; |
186 | } | |
187 | ||
d6978a32 | 188 | static int check_str_bytes(const char *p, long long *val, void *data) |
cb2c86fd | 189 | { |
d6978a32 | 190 | return str_to_decimal(p, val, 1, data); |
cb2c86fd JA |
191 | } |
192 | ||
63f29372 | 193 | static int check_str_time(const char *p, long long *val) |
cb2c86fd | 194 | { |
d6978a32 | 195 | return str_to_decimal(p, val, 0, NULL); |
cb2c86fd JA |
196 | } |
197 | ||
198 | void strip_blank_front(char **p) | |
199 | { | |
200 | char *s = *p; | |
201 | ||
202 | while (isspace(*s)) | |
203 | s++; | |
4d651dad JA |
204 | |
205 | *p = s; | |
cb2c86fd JA |
206 | } |
207 | ||
208 | void strip_blank_end(char *p) | |
209 | { | |
853ee7fc | 210 | char *start = p, *s; |
523bfadb JA |
211 | |
212 | s = strchr(p, ';'); | |
213 | if (s) | |
214 | *s = '\0'; | |
215 | s = strchr(p, '#'); | |
216 | if (s) | |
217 | *s = '\0'; | |
218 | if (s) | |
219 | p = s; | |
220 | ||
7f7e6e59 | 221 | s = p + strlen(p); |
853ee7fc | 222 | while ((isspace(*s) || iscntrl(*s)) && (s > start)) |
cb2c86fd JA |
223 | s--; |
224 | ||
225 | *(s + 1) = '\0'; | |
226 | } | |
227 | ||
d6978a32 | 228 | static int check_range_bytes(const char *str, long *val, void *data) |
cb2c86fd JA |
229 | { |
230 | char suffix; | |
231 | ||
787f7e95 JA |
232 | if (!strlen(str)) |
233 | return 1; | |
234 | ||
cb2c86fd | 235 | if (sscanf(str, "%lu%c", val, &suffix) == 2) { |
d6978a32 | 236 | *val *= get_mult_bytes(suffix, data); |
cb2c86fd JA |
237 | return 0; |
238 | } | |
239 | ||
240 | if (sscanf(str, "%lu", val) == 1) | |
241 | return 0; | |
242 | ||
243 | return 1; | |
244 | } | |
245 | ||
63f29372 | 246 | static int check_int(const char *p, int *val) |
cb2c86fd | 247 | { |
787f7e95 JA |
248 | if (!strlen(p)) |
249 | return 1; | |
d78ee463 | 250 | if (strstr(p, "0x") || strstr(p, "0X")) { |
a61bdfd8 JA |
251 | if (sscanf(p, "%x", val) == 1) |
252 | return 0; | |
253 | } else { | |
254 | if (sscanf(p, "%u", val) == 1) | |
255 | return 0; | |
256 | } | |
cb2c86fd | 257 | |
e1f36503 JA |
258 | return 1; |
259 | } | |
cb2c86fd | 260 | |
9f988e2e JA |
261 | static inline int o_match(struct fio_option *o, const char *opt) |
262 | { | |
263 | if (!strcmp(o->name, opt)) | |
264 | return 1; | |
265 | else if (o->alias && !strcmp(o->alias, opt)) | |
266 | return 1; | |
267 | ||
268 | return 0; | |
269 | } | |
270 | ||
e1f36503 | 271 | static struct fio_option *find_option(struct fio_option *options, |
07b3232d | 272 | const char *opt) |
e1f36503 | 273 | { |
4945ba12 | 274 | struct fio_option *o; |
cb2c86fd | 275 | |
9f988e2e JA |
276 | for (o = &options[0]; o->name; o++) |
277 | if (o_match(o, opt)) | |
03b74b3e | 278 | return o; |
9f988e2e | 279 | |
e1f36503 | 280 | return NULL; |
cb2c86fd JA |
281 | } |
282 | ||
17abbe89 JA |
283 | #define val_store(ptr, val, off, data) \ |
284 | do { \ | |
285 | ptr = td_var((data), (off)); \ | |
286 | *ptr = (val); \ | |
287 | } while (0) | |
288 | ||
f90eff5a | 289 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
787f7e95 | 290 | int first, int more) |
cb2c86fd | 291 | { |
63f29372 JA |
292 | int il, *ilp; |
293 | long long ull, *ullp; | |
294 | long ul1, ul2; | |
b4692828 | 295 | char **cp; |
e1f36503 | 296 | int ret = 0, is_time = 0; |
cb2c86fd | 297 | |
a3d741fa JA |
298 | dprint(FD_PARSE, "__handle_option=%s, type=%d, ptr=%s\n", o->name, |
299 | o->type, ptr); | |
300 | ||
e3cedca7 | 301 | if (!ptr && o->type != FIO_OPT_STR_SET && o->type != FIO_OPT_STR) { |
08e26e35 JA |
302 | fprintf(stderr, "Option %s requires an argument\n", o->name); |
303 | return 1; | |
304 | } | |
305 | ||
e1f36503 JA |
306 | switch (o->type) { |
307 | case FIO_OPT_STR: { | |
308 | fio_opt_str_fn *fn = o->cb; | |
b1ec1da6 | 309 | const struct value_pair *vp; |
f085737f | 310 | struct value_pair posval[PARSE_MAX_VP]; |
b1ec1da6 JA |
311 | int i; |
312 | ||
f085737f JA |
313 | posval_sort(o, posval); |
314 | ||
b1ec1da6 | 315 | for (i = 0; i < PARSE_MAX_VP; i++) { |
f085737f | 316 | vp = &posval[i]; |
b1ec1da6 JA |
317 | if (!vp->ival || vp->ival[0] == '\0') |
318 | break; | |
6612a27b | 319 | ret = 1; |
b1ec1da6 JA |
320 | if (!strncmp(vp->ival, ptr, strlen(vp->ival))) { |
321 | ret = 0; | |
02c6aad5 JA |
322 | if (o->roff1) |
323 | *(unsigned int *) o->roff1 = vp->oval; | |
324 | else { | |
325 | if (!o->off1) | |
326 | break; | |
327 | val_store(ilp, vp->oval, o->off1, data); | |
328 | } | |
b1ec1da6 JA |
329 | break; |
330 | } | |
331 | } | |
cb2c86fd | 332 | |
b1ec1da6 JA |
333 | if (ret) |
334 | show_option_values(o); | |
335 | else if (fn) | |
336 | ret = fn(data, ptr); | |
e1f36503 JA |
337 | break; |
338 | } | |
339 | case FIO_OPT_STR_VAL_TIME: | |
340 | is_time = 1; | |
f7fa2653 | 341 | case FIO_OPT_INT: |
e01b22b8 | 342 | case FIO_OPT_STR_VAL: { |
e1f36503 JA |
343 | fio_opt_str_val_fn *fn = o->cb; |
344 | ||
345 | if (is_time) | |
346 | ret = check_str_time(ptr, &ull); | |
347 | else | |
d6978a32 | 348 | ret = check_str_bytes(ptr, &ull, data); |
e1f36503 JA |
349 | |
350 | if (ret) | |
351 | break; | |
352 | ||
db8e0165 | 353 | if (o->maxval && ull > o->maxval) { |
5ec10eaa JA |
354 | fprintf(stderr, "max value out of range: %lld" |
355 | " (%d max)\n", ull, o->maxval); | |
db8e0165 JA |
356 | return 1; |
357 | } | |
358 | if (o->minval && ull < o->minval) { | |
5ec10eaa JA |
359 | fprintf(stderr, "min value out of range: %lld" |
360 | " (%d min)\n", ull, o->minval); | |
db8e0165 JA |
361 | return 1; |
362 | } | |
e1f36503 JA |
363 | |
364 | if (fn) | |
365 | ret = fn(data, &ull); | |
366 | else { | |
e01b22b8 | 367 | if (o->type == FIO_OPT_INT) { |
02c6aad5 JA |
368 | if (first) { |
369 | if (o->roff1) | |
370 | *(unsigned long long *) o->roff1 = ull; | |
371 | else | |
372 | val_store(ilp, ull, o->off1, data); | |
373 | } | |
374 | if (!more) { | |
375 | if (o->roff2) | |
376 | *(unsigned long long *) o->roff2 = ull; | |
377 | else if (o->off2) | |
378 | val_store(ilp, ull, o->off2, data); | |
379 | } | |
75e6f36f | 380 | } else { |
02c6aad5 JA |
381 | if (first) { |
382 | if (o->roff1) | |
383 | *(unsigned long long *) o->roff1 = ull; | |
384 | else | |
385 | val_store(ullp, ull, o->off1, data); | |
386 | } | |
387 | if (!more) { | |
388 | if (o->roff2) | |
389 | *(unsigned long long *) o->roff2 = ull; | |
390 | else if (o->off2) | |
391 | val_store(ullp, ull, o->off2, data); | |
392 | } | |
75e6f36f | 393 | } |
e1f36503 JA |
394 | } |
395 | break; | |
396 | } | |
af52b345 JA |
397 | case FIO_OPT_STR_STORE: { |
398 | fio_opt_str_fn *fn = o->cb; | |
399 | ||
02c6aad5 JA |
400 | if (o->roff1) |
401 | cp = (char **) o->roff1; | |
402 | else | |
403 | cp = td_var(data, o->off1); | |
404 | ||
e1f36503 | 405 | *cp = strdup(ptr); |
af52b345 JA |
406 | if (fn) { |
407 | ret = fn(data, ptr); | |
408 | if (ret) { | |
409 | free(*cp); | |
410 | *cp = NULL; | |
411 | } | |
412 | } | |
e1f36503 | 413 | break; |
af52b345 | 414 | } |
e1f36503 | 415 | case FIO_OPT_RANGE: { |
b765a372 | 416 | char tmp[128]; |
e1f36503 JA |
417 | char *p1, *p2; |
418 | ||
0bbab0e7 | 419 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
b765a372 JA |
420 | |
421 | p1 = strchr(tmp, '-'); | |
e1f36503 | 422 | if (!p1) { |
0c9baf91 JA |
423 | p1 = strchr(tmp, ':'); |
424 | if (!p1) { | |
425 | ret = 1; | |
426 | break; | |
427 | } | |
e1f36503 JA |
428 | } |
429 | ||
430 | p2 = p1 + 1; | |
431 | *p1 = '\0'; | |
b765a372 | 432 | p1 = tmp; |
e1f36503 JA |
433 | |
434 | ret = 1; | |
d6978a32 JA |
435 | if (!check_range_bytes(p1, &ul1, data) && |
436 | !check_range_bytes(p2, &ul2, data)) { | |
e1f36503 | 437 | ret = 0; |
e1f36503 | 438 | if (ul1 > ul2) { |
f90eff5a JA |
439 | unsigned long foo = ul1; |
440 | ||
441 | ul1 = ul2; | |
442 | ul2 = foo; | |
443 | } | |
444 | ||
445 | if (first) { | |
02c6aad5 JA |
446 | if (o->roff1) |
447 | *(unsigned long *) o->roff1 = ul1; | |
448 | else | |
449 | val_store(ilp, ul1, o->off1, data); | |
450 | if (o->roff2) | |
451 | *(unsigned long *) o->roff2 = ul2; | |
452 | else | |
453 | val_store(ilp, ul2, o->off2, data); | |
17abbe89 | 454 | } |
02c6aad5 JA |
455 | if (o->roff3 && o->roff4) { |
456 | *(unsigned long *) o->roff3 = ul1; | |
457 | *(unsigned long *) o->roff4 = ul2; | |
458 | } else if (o->off3 && o->off4) { | |
17abbe89 JA |
459 | val_store(ilp, ul1, o->off3, data); |
460 | val_store(ilp, ul2, o->off4, data); | |
e1f36503 | 461 | } |
17abbe89 JA |
462 | } |
463 | ||
e1f36503 JA |
464 | break; |
465 | } | |
13335ddb | 466 | case FIO_OPT_BOOL: { |
e1f36503 JA |
467 | fio_opt_int_fn *fn = o->cb; |
468 | ||
469 | ret = check_int(ptr, &il); | |
470 | if (ret) | |
471 | break; | |
472 | ||
db8e0165 | 473 | if (o->maxval && il > (int) o->maxval) { |
5ec10eaa JA |
474 | fprintf(stderr, "max value out of range: %d (%d max)\n", |
475 | il, o->maxval); | |
db8e0165 JA |
476 | return 1; |
477 | } | |
478 | if (o->minval && il < o->minval) { | |
5ec10eaa JA |
479 | fprintf(stderr, "min value out of range: %d (%d min)\n", |
480 | il, o->minval); | |
db8e0165 JA |
481 | return 1; |
482 | } | |
e1f36503 | 483 | |
76a43db4 JA |
484 | if (o->neg) |
485 | il = !il; | |
486 | ||
e1f36503 JA |
487 | if (fn) |
488 | ret = fn(data, &il); | |
489 | else { | |
02c6aad5 JA |
490 | if (first) { |
491 | if (o->roff1) | |
492 | *(unsigned int *)o->roff1 = il; | |
493 | else | |
494 | val_store(ilp, il, o->off1, data); | |
495 | } | |
496 | if (!more) { | |
497 | if (o->roff2) | |
498 | *(unsigned int *) o->roff2 = il; | |
499 | else if (o->off2) | |
500 | val_store(ilp, il, o->off2, data); | |
501 | } | |
e1f36503 JA |
502 | } |
503 | break; | |
504 | } | |
505 | case FIO_OPT_STR_SET: { | |
506 | fio_opt_str_set_fn *fn = o->cb; | |
507 | ||
508 | if (fn) | |
509 | ret = fn(data); | |
510 | else { | |
02c6aad5 JA |
511 | if (first) { |
512 | if (o->roff1) | |
513 | *(unsigned int *) o->roff1 = 1; | |
514 | else | |
515 | val_store(ilp, 1, o->off1, data); | |
516 | } | |
517 | if (!more) { | |
518 | if (o->roff2) | |
519 | *(unsigned int *) o->roff2 = 1; | |
520 | else if (o->off2) | |
521 | val_store(ilp, 1, o->off2, data); | |
522 | } | |
e1f36503 JA |
523 | } |
524 | break; | |
525 | } | |
15ca150e JA |
526 | case FIO_OPT_DEPRECATED: |
527 | fprintf(stdout, "Option %s is deprecated\n", o->name); | |
528 | break; | |
e1f36503 | 529 | default: |
1e97cce9 | 530 | fprintf(stderr, "Bad option type %u\n", o->type); |
e1f36503 JA |
531 | ret = 1; |
532 | } | |
cb2c86fd | 533 | |
70a4c0c8 JA |
534 | if (ret) |
535 | return ret; | |
536 | ||
d447a8c2 | 537 | if (o->verify) { |
70a4c0c8 | 538 | ret = o->verify(o, data); |
d447a8c2 JA |
539 | if (ret) { |
540 | fprintf(stderr,"Correct format for offending option\n"); | |
541 | fprintf(stderr, "%20s: %s\n", o->name, o->help); | |
542 | show_option_help(o, stderr); | |
543 | } | |
544 | } | |
70a4c0c8 | 545 | |
e1f36503 | 546 | return ret; |
cb2c86fd JA |
547 | } |
548 | ||
7c8f1a5c | 549 | static int handle_option(struct fio_option *o, const char *__ptr, void *data) |
f90eff5a | 550 | { |
7c8f1a5c | 551 | char *ptr, *ptr2 = NULL; |
787f7e95 | 552 | int r1, r2; |
f90eff5a | 553 | |
7c8f1a5c JA |
554 | dprint(FD_PARSE, "handle_option=%s, ptr=%s\n", o->name, __ptr); |
555 | ||
556 | ptr = NULL; | |
557 | if (__ptr) | |
558 | ptr = strdup(__ptr); | |
a3d741fa | 559 | |
f90eff5a | 560 | /* |
787f7e95 JA |
561 | * See if we have a second set of parameters, hidden after a comma. |
562 | * Do this before parsing the first round, to check if we should | |
563 | * copy set 1 options to set 2. | |
f90eff5a | 564 | */ |
ad231bc4 JB |
565 | if (ptr && |
566 | (o->type != FIO_OPT_STR_STORE) && | |
567 | (o->type != FIO_OPT_STR)) { | |
92b586f8 | 568 | ptr2 = strchr(ptr, ','); |
7c8f1a5c JA |
569 | if (ptr2 && *(ptr2 + 1) == '\0') |
570 | *ptr2 = '\0'; | |
0c9baf91 JA |
571 | if (!ptr2) |
572 | ptr2 = strchr(ptr, ':'); | |
b486f76a JA |
573 | if (!ptr2) |
574 | ptr2 = strchr(ptr, '-'); | |
0c9baf91 | 575 | } |
787f7e95 JA |
576 | |
577 | /* | |
578 | * Don't return early if parsing the first option fails - if | |
579 | * we are doing multiple arguments, we can allow the first one | |
580 | * being empty. | |
581 | */ | |
582 | r1 = __handle_option(o, ptr, data, 1, !!ptr2); | |
583 | ||
7c8f1a5c JA |
584 | if (!ptr2) { |
585 | if (ptr) | |
586 | free(ptr); | |
787f7e95 | 587 | return r1; |
7c8f1a5c | 588 | } |
f90eff5a JA |
589 | |
590 | ptr2++; | |
787f7e95 JA |
591 | r2 = __handle_option(o, ptr2, data, 0, 0); |
592 | ||
7c8f1a5c JA |
593 | if (ptr) |
594 | free(ptr); | |
787f7e95 | 595 | return r1 && r2; |
f90eff5a JA |
596 | } |
597 | ||
3b8b7135 | 598 | static struct fio_option *get_option(const char *opt, |
07b3232d | 599 | struct fio_option *options, char **post) |
3b8b7135 JA |
600 | { |
601 | struct fio_option *o; | |
602 | char *ret; | |
603 | ||
604 | ret = strchr(opt, '='); | |
605 | if (ret) { | |
606 | *post = ret; | |
607 | *ret = '\0'; | |
608 | ret = (char *) opt; | |
609 | (*post)++; | |
43c129b4 | 610 | strip_blank_end(ret); |
07b3232d | 611 | o = find_option(options, ret); |
3b8b7135 | 612 | } else { |
07b3232d | 613 | o = find_option(options, opt); |
3b8b7135 JA |
614 | *post = NULL; |
615 | } | |
616 | ||
617 | return o; | |
618 | } | |
619 | ||
620 | static int opt_cmp(const void *p1, const void *p2) | |
621 | { | |
622 | struct fio_option *o1, *o2; | |
623 | char *s1, *s2, *foo; | |
8cdabc1d | 624 | int prio1, prio2; |
3b8b7135 JA |
625 | |
626 | s1 = strdup(*((char **) p1)); | |
627 | s2 = strdup(*((char **) p2)); | |
628 | ||
07b3232d JA |
629 | o1 = get_option(s1, fio_options, &foo); |
630 | o2 = get_option(s2, fio_options, &foo); | |
0b9d69ec | 631 | |
8cdabc1d JA |
632 | prio1 = prio2 = 0; |
633 | if (o1) | |
634 | prio1 = o1->prio; | |
635 | if (o2) | |
636 | prio2 = o2->prio; | |
3b8b7135 JA |
637 | |
638 | free(s1); | |
639 | free(s2); | |
8cdabc1d | 640 | return prio2 - prio1; |
3b8b7135 JA |
641 | } |
642 | ||
643 | void sort_options(char **opts, struct fio_option *options, int num_opts) | |
644 | { | |
645 | fio_options = options; | |
646 | qsort(opts, num_opts, sizeof(char *), opt_cmp); | |
647 | fio_options = NULL; | |
648 | } | |
649 | ||
b4692828 | 650 | int parse_cmd_option(const char *opt, const char *val, |
07b3232d | 651 | struct fio_option *options, void *data) |
b4692828 JA |
652 | { |
653 | struct fio_option *o; | |
654 | ||
07b3232d | 655 | o = find_option(options, opt); |
b4692828 | 656 | if (!o) { |
43c129b4 | 657 | fprintf(stderr, "Bad option <%s>\n", opt); |
b4692828 JA |
658 | return 1; |
659 | } | |
660 | ||
b1508cf9 JA |
661 | if (!handle_option(o, val, data)) |
662 | return 0; | |
663 | ||
664 | fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val); | |
665 | return 1; | |
b4692828 JA |
666 | } |
667 | ||
88b5a391 AC |
668 | /* |
669 | * Return a copy of the input string with substrings of the form ${VARNAME} | |
670 | * substituted with the value of the environment variable VARNAME. The | |
671 | * substitution always occurs, even if VARNAME is empty or the corresponding | |
672 | * environment variable undefined. | |
673 | */ | |
674 | static char *option_dup_subs(const char *opt) | |
675 | { | |
676 | char out[OPT_LEN_MAX+1]; | |
677 | char in[OPT_LEN_MAX+1]; | |
678 | char *outptr = out; | |
679 | char *inptr = in; | |
680 | char *ch1, *ch2, *env; | |
681 | ssize_t nchr = OPT_LEN_MAX; | |
682 | size_t envlen; | |
683 | ||
38789b58 JA |
684 | if (strlen(in) + 1 > OPT_LEN_MAX) { |
685 | fprintf(stderr, "OPT_LEN_MAX (%d) is too small\n", OPT_LEN_MAX); | |
686 | return NULL; | |
687 | } | |
688 | ||
88b5a391 AC |
689 | in[OPT_LEN_MAX] = '\0'; |
690 | strncpy(in, opt, OPT_LEN_MAX); | |
691 | ||
692 | while (*inptr && nchr > 0) { | |
693 | if (inptr[0] == '$' && inptr[1] == '{') { | |
694 | ch2 = strchr(inptr, '}'); | |
695 | if (ch2 && inptr+1 < ch2) { | |
696 | ch1 = inptr+2; | |
697 | inptr = ch2+1; | |
698 | *ch2 = '\0'; | |
699 | ||
700 | env = getenv(ch1); | |
701 | if (env) { | |
702 | envlen = strlen(env); | |
703 | if (envlen <= nchr) { | |
704 | memcpy(outptr, env, envlen); | |
705 | outptr += envlen; | |
706 | nchr -= envlen; | |
707 | } | |
708 | } | |
709 | ||
710 | continue; | |
711 | } | |
712 | } | |
713 | ||
714 | *outptr++ = *inptr++; | |
715 | --nchr; | |
716 | } | |
717 | ||
718 | *outptr = '\0'; | |
719 | return strdup(out); | |
720 | } | |
721 | ||
07b3232d | 722 | int parse_option(const char *opt, struct fio_option *options, void *data) |
cb2c86fd | 723 | { |
b4692828 | 724 | struct fio_option *o; |
3b8b7135 | 725 | char *post, *tmp; |
e1f36503 | 726 | |
88b5a391 | 727 | tmp = option_dup_subs(opt); |
38789b58 JA |
728 | if (!tmp) |
729 | return 1; | |
e1f36503 | 730 | |
07b3232d | 731 | o = get_option(tmp, options, &post); |
e1f36503 | 732 | if (!o) { |
43c129b4 | 733 | fprintf(stderr, "Bad option <%s>\n", tmp); |
0401bca6 | 734 | free(tmp); |
e1f36503 JA |
735 | return 1; |
736 | } | |
737 | ||
0401bca6 JA |
738 | if (!handle_option(o, post, data)) { |
739 | free(tmp); | |
b1508cf9 | 740 | return 0; |
0401bca6 | 741 | } |
b1508cf9 JA |
742 | |
743 | fprintf(stderr, "fio: failed parsing %s\n", opt); | |
0401bca6 | 744 | free(tmp); |
b1508cf9 | 745 | return 1; |
e1f36503 | 746 | } |
fd28ca49 | 747 | |
0e9f7fac JA |
748 | /* |
749 | * Option match, levenshtein distance. Handy for not quite remembering what | |
750 | * the option name is. | |
751 | */ | |
752 | static int string_distance(const char *s1, const char *s2) | |
753 | { | |
754 | unsigned int s1_len = strlen(s1); | |
755 | unsigned int s2_len = strlen(s2); | |
756 | unsigned int *p, *q, *r; | |
757 | unsigned int i, j; | |
758 | ||
759 | p = malloc(sizeof(unsigned int) * (s2_len + 1)); | |
760 | q = malloc(sizeof(unsigned int) * (s2_len + 1)); | |
761 | ||
762 | p[0] = 0; | |
763 | for (i = 1; i <= s2_len; i++) | |
764 | p[i] = p[i - 1] + 1; | |
765 | ||
766 | for (i = 1; i <= s1_len; i++) { | |
767 | q[0] = p[0] + 1; | |
768 | for (j = 1; j <= s2_len; j++) { | |
769 | unsigned int sub = p[j - 1]; | |
770 | ||
771 | if (s1[i - 1] != s2[j - 1]) | |
772 | sub++; | |
773 | ||
774 | q[j] = min(p[j] + 1, min(q[j - 1] + 1, sub)); | |
775 | } | |
776 | r = p; | |
777 | p = q; | |
778 | q = r; | |
779 | } | |
780 | ||
781 | i = p[s2_len]; | |
782 | free(p); | |
783 | free(q); | |
784 | return i; | |
785 | } | |
786 | ||
afdf9352 JA |
787 | static struct fio_option *find_child(struct fio_option *options, |
788 | struct fio_option *o) | |
789 | { | |
790 | struct fio_option *__o; | |
791 | ||
fdf28744 JA |
792 | for (__o = options + 1; __o->name; __o++) |
793 | if (__o->parent && !strcmp(__o->parent, o->name)) | |
afdf9352 JA |
794 | return __o; |
795 | ||
796 | return NULL; | |
797 | } | |
798 | ||
323d9113 JA |
799 | static void __print_option(struct fio_option *o, struct fio_option *org, |
800 | int level) | |
afdf9352 JA |
801 | { |
802 | char name[256], *p; | |
323d9113 | 803 | int depth; |
afdf9352 JA |
804 | |
805 | if (!o) | |
806 | return; | |
ef9aff52 JA |
807 | if (!org) |
808 | org = o; | |
5ec10eaa | 809 | |
afdf9352 | 810 | p = name; |
323d9113 JA |
811 | depth = level; |
812 | while (depth--) | |
813 | p += sprintf(p, "%s", " "); | |
afdf9352 JA |
814 | |
815 | sprintf(p, "%s", o->name); | |
816 | ||
817 | printf("%-24s: %s\n", name, o->help); | |
323d9113 JA |
818 | } |
819 | ||
820 | static void print_option(struct fio_option *o) | |
821 | { | |
822 | struct fio_option *parent; | |
823 | struct fio_option *__o; | |
824 | unsigned int printed; | |
825 | unsigned int level; | |
826 | ||
827 | __print_option(o, NULL, 0); | |
828 | parent = o; | |
829 | level = 0; | |
830 | do { | |
831 | level++; | |
832 | printed = 0; | |
833 | ||
834 | while ((__o = find_child(o, parent)) != NULL) { | |
835 | __print_option(__o, o, level); | |
836 | o = __o; | |
837 | printed++; | |
838 | } | |
839 | ||
840 | parent = o; | |
841 | } while (printed); | |
afdf9352 JA |
842 | } |
843 | ||
07b3232d | 844 | int show_cmd_help(struct fio_option *options, const char *name) |
0e9f7fac JA |
845 | { |
846 | struct fio_option *o, *closest; | |
847 | unsigned int best_dist; | |
29fc6afe | 848 | int found = 0; |
320beefe JA |
849 | int show_all = 0; |
850 | ||
851 | if (!name || !strcmp(name, "all")) | |
852 | show_all = 1; | |
fd28ca49 | 853 | |
0e9f7fac JA |
854 | closest = NULL; |
855 | best_dist = -1; | |
4945ba12 | 856 | for (o = &options[0]; o->name; o++) { |
320beefe JA |
857 | int match = 0; |
858 | ||
15ca150e JA |
859 | if (o->type == FIO_OPT_DEPRECATED) |
860 | continue; | |
07b3232d JA |
861 | if (!exec_profile && o->prof_name) |
862 | continue; | |
15ca150e | 863 | |
0e9f7fac | 864 | if (name) { |
7f9348f8 JA |
865 | if (!strcmp(name, o->name) || |
866 | (o->alias && !strcmp(name, o->alias))) | |
0e9f7fac JA |
867 | match = 1; |
868 | else { | |
869 | unsigned int dist; | |
870 | ||
871 | dist = string_distance(name, o->name); | |
872 | if (dist < best_dist) { | |
873 | best_dist = dist; | |
874 | closest = o; | |
875 | } | |
876 | } | |
877 | } | |
fd28ca49 JA |
878 | |
879 | if (show_all || match) { | |
29fc6afe | 880 | found = 1; |
c167dedc | 881 | if (match) |
07b3232d | 882 | printf("%20s: %s\n", o->name, o->help); |
c167dedc | 883 | if (show_all) { |
afdf9352 | 884 | if (!o->parent) |
323d9113 | 885 | print_option(o); |
4945ba12 | 886 | continue; |
c167dedc | 887 | } |
fd28ca49 JA |
888 | } |
889 | ||
70df2f19 JA |
890 | if (!match) |
891 | continue; | |
892 | ||
d447a8c2 | 893 | show_option_help(o, stdout); |
fd28ca49 JA |
894 | } |
895 | ||
29fc6afe JA |
896 | if (found) |
897 | return 0; | |
fd28ca49 | 898 | |
0e9f7fac JA |
899 | printf("No such command: %s", name); |
900 | if (closest) { | |
901 | printf(" - showing closest match\n"); | |
902 | printf("%20s: %s\n", closest->name, closest->help); | |
d447a8c2 | 903 | show_option_help(closest, stdout); |
0e9f7fac JA |
904 | } else |
905 | printf("\n"); | |
906 | ||
29fc6afe | 907 | return 1; |
fd28ca49 | 908 | } |
ee738499 | 909 | |
13335ddb JA |
910 | /* |
911 | * Handle parsing of default parameters. | |
912 | */ | |
ee738499 JA |
913 | void fill_default_options(void *data, struct fio_option *options) |
914 | { | |
4945ba12 | 915 | struct fio_option *o; |
ee738499 | 916 | |
a3d741fa JA |
917 | dprint(FD_PARSE, "filling default options\n"); |
918 | ||
4945ba12 | 919 | for (o = &options[0]; o->name; o++) |
ee738499 JA |
920 | if (o->def) |
921 | handle_option(o, o->def, data); | |
ee738499 | 922 | } |
13335ddb | 923 | |
9f988e2e JA |
924 | void option_init(struct fio_option *o) |
925 | { | |
926 | if (o->type == FIO_OPT_DEPRECATED) | |
927 | return; | |
928 | if (o->type == FIO_OPT_BOOL) { | |
929 | o->minval = 0; | |
930 | o->maxval = 1; | |
931 | } | |
932 | if (o->type == FIO_OPT_STR_SET && o->def) { | |
933 | fprintf(stderr, "Option %s: string set option with" | |
934 | " default will always be true\n", o->name); | |
935 | } | |
e2de69da | 936 | if (!o->cb && (!o->off1 && !o->roff1)) { |
9f988e2e JA |
937 | fprintf(stderr, "Option %s: neither cb nor offset given\n", |
938 | o->name); | |
939 | } | |
940 | if (o->type == FIO_OPT_STR || o->type == FIO_OPT_STR_STORE) | |
941 | return; | |
e2de69da JA |
942 | if (o->cb && ((o->off1 || o->off2 || o->off3 || o->off4) || |
943 | (o->roff1 || o->roff2 || o->roff3 || o->roff4))) { | |
9f988e2e JA |
944 | fprintf(stderr, "Option %s: both cb and offset given\n", |
945 | o->name); | |
946 | } | |
947 | } | |
948 | ||
13335ddb JA |
949 | /* |
950 | * Sanitize the options structure. For now it just sets min/max for bool | |
5b0a8880 | 951 | * values and whether both callback and offsets are given. |
13335ddb JA |
952 | */ |
953 | void options_init(struct fio_option *options) | |
954 | { | |
4945ba12 | 955 | struct fio_option *o; |
13335ddb | 956 | |
a3d741fa JA |
957 | dprint(FD_PARSE, "init options\n"); |
958 | ||
9f988e2e JA |
959 | for (o = &options[0]; o->name; o++) |
960 | option_init(o); | |
13335ddb | 961 | } |