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> | |
11 | ||
12 | #include "parse.h" | |
13 | ||
14 | static unsigned long get_mult_time(char c) | |
15 | { | |
16 | switch (c) { | |
17 | case 'm': | |
18 | case 'M': | |
19 | return 60; | |
20 | case 'h': | |
21 | case 'H': | |
22 | return 60 * 60; | |
23 | case 'd': | |
24 | case 'D': | |
25 | return 24 * 60 * 60; | |
26 | default: | |
27 | return 1; | |
28 | } | |
29 | } | |
30 | ||
31 | static unsigned long get_mult_bytes(char c) | |
32 | { | |
33 | switch (c) { | |
34 | case 'k': | |
35 | case 'K': | |
36 | return 1024; | |
37 | case 'm': | |
38 | case 'M': | |
39 | return 1024 * 1024; | |
40 | case 'g': | |
41 | case 'G': | |
42 | return 1024 * 1024 * 1024; | |
43 | default: | |
44 | return 1; | |
45 | } | |
46 | } | |
47 | ||
48 | /* | |
e1f36503 | 49 | * convert string into decimal value, noting any size suffix |
cb2c86fd | 50 | */ |
63f29372 | 51 | static int str_to_decimal(const char *str, long long *val, int kilo) |
cb2c86fd | 52 | { |
cb2c86fd JA |
53 | int len; |
54 | ||
cb2c86fd | 55 | len = strlen(str); |
f90eff5a JA |
56 | if (!len) |
57 | return 1; | |
cb2c86fd | 58 | |
675de85a | 59 | *val = strtoll(str, NULL, 10); |
cda866ca | 60 | if (*val == LONG_MAX && errno == ERANGE) |
cb2c86fd JA |
61 | return 1; |
62 | ||
63 | if (kilo) | |
64 | *val *= get_mult_bytes(str[len - 1]); | |
65 | else | |
66 | *val *= get_mult_time(str[len - 1]); | |
787f7e95 | 67 | |
cb2c86fd JA |
68 | return 0; |
69 | } | |
70 | ||
63f29372 | 71 | static int check_str_bytes(const char *p, long long *val) |
cb2c86fd | 72 | { |
cb2c86fd JA |
73 | return str_to_decimal(p, val, 1); |
74 | } | |
75 | ||
63f29372 | 76 | static int check_str_time(const char *p, long long *val) |
cb2c86fd | 77 | { |
cb2c86fd JA |
78 | return str_to_decimal(p, val, 0); |
79 | } | |
80 | ||
81 | void strip_blank_front(char **p) | |
82 | { | |
83 | char *s = *p; | |
84 | ||
85 | while (isspace(*s)) | |
86 | s++; | |
87 | } | |
88 | ||
89 | void strip_blank_end(char *p) | |
90 | { | |
91 | char *s = p + strlen(p) - 1; | |
92 | ||
93 | while (isspace(*s) || iscntrl(*s)) | |
94 | s--; | |
95 | ||
96 | *(s + 1) = '\0'; | |
97 | } | |
98 | ||
63f29372 | 99 | static int check_range_bytes(const char *str, long *val) |
cb2c86fd JA |
100 | { |
101 | char suffix; | |
102 | ||
787f7e95 JA |
103 | if (!strlen(str)) |
104 | return 1; | |
105 | ||
cb2c86fd JA |
106 | if (sscanf(str, "%lu%c", val, &suffix) == 2) { |
107 | *val *= get_mult_bytes(suffix); | |
108 | return 0; | |
109 | } | |
110 | ||
111 | if (sscanf(str, "%lu", val) == 1) | |
112 | return 0; | |
113 | ||
114 | return 1; | |
115 | } | |
116 | ||
63f29372 | 117 | static int check_int(const char *p, int *val) |
cb2c86fd | 118 | { |
787f7e95 JA |
119 | if (!strlen(p)) |
120 | return 1; | |
e1f36503 JA |
121 | if (sscanf(p, "%u", val) == 1) |
122 | return 0; | |
cb2c86fd | 123 | |
e1f36503 JA |
124 | return 1; |
125 | } | |
cb2c86fd | 126 | |
e1f36503 JA |
127 | static struct fio_option *find_option(struct fio_option *options, |
128 | const char *opt) | |
129 | { | |
4945ba12 | 130 | struct fio_option *o; |
cb2c86fd | 131 | |
4945ba12 | 132 | for (o = &options[0]; o->name; o++) { |
e1f36503 JA |
133 | if (!strcmp(o->name, opt)) |
134 | return o; | |
03b74b3e JA |
135 | else if (o->alias && !strcmp(o->alias, opt)) |
136 | return o; | |
33963c6c | 137 | } |
cb2c86fd | 138 | |
e1f36503 | 139 | return NULL; |
cb2c86fd JA |
140 | } |
141 | ||
17abbe89 JA |
142 | #define val_store(ptr, val, off, data) \ |
143 | do { \ | |
144 | ptr = td_var((data), (off)); \ | |
145 | *ptr = (val); \ | |
146 | } while (0) | |
147 | ||
f90eff5a | 148 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
787f7e95 | 149 | int first, int more) |
cb2c86fd | 150 | { |
63f29372 JA |
151 | int il, *ilp; |
152 | long long ull, *ullp; | |
153 | long ul1, ul2; | |
b4692828 | 154 | char **cp; |
e1f36503 | 155 | int ret = 0, is_time = 0; |
cb2c86fd | 156 | |
08e26e35 JA |
157 | if (!ptr && o->type != FIO_OPT_STR_SET) { |
158 | fprintf(stderr, "Option %s requires an argument\n", o->name); | |
159 | return 1; | |
160 | } | |
161 | ||
e1f36503 JA |
162 | switch (o->type) { |
163 | case FIO_OPT_STR: { | |
164 | fio_opt_str_fn *fn = o->cb; | |
cb2c86fd | 165 | |
e1f36503 JA |
166 | ret = fn(data, ptr); |
167 | break; | |
168 | } | |
169 | case FIO_OPT_STR_VAL_TIME: | |
170 | is_time = 1; | |
75e6f36f JA |
171 | case FIO_OPT_STR_VAL: |
172 | case FIO_OPT_STR_VAL_INT: { | |
e1f36503 JA |
173 | fio_opt_str_val_fn *fn = o->cb; |
174 | ||
175 | if (is_time) | |
176 | ret = check_str_time(ptr, &ull); | |
177 | else | |
178 | ret = check_str_bytes(ptr, &ull); | |
179 | ||
180 | if (ret) | |
181 | break; | |
182 | ||
db8e0165 JA |
183 | if (o->maxval && ull > o->maxval) { |
184 | fprintf(stderr, "max value out of range: %lld (%d max)\n", ull, o->maxval); | |
185 | return 1; | |
186 | } | |
187 | if (o->minval && ull < o->minval) { | |
188 | fprintf(stderr, "min value out of range: %lld (%d min)\n", ull, o->minval); | |
189 | return 1; | |
190 | } | |
e1f36503 JA |
191 | |
192 | if (fn) | |
193 | ret = fn(data, &ull); | |
194 | else { | |
75e6f36f | 195 | if (o->type == FIO_OPT_STR_VAL_INT) { |
17abbe89 JA |
196 | if (first) |
197 | val_store(ilp, ull, o->off1, data); | |
787f7e95 | 198 | if (!more && o->off2) |
17abbe89 | 199 | val_store(ilp, ull, o->off2, data); |
75e6f36f | 200 | } else { |
17abbe89 JA |
201 | if (first) |
202 | val_store(ullp, ull, o->off1, data); | |
787f7e95 | 203 | if (!more && o->off2) |
17abbe89 | 204 | val_store(ullp, ull, o->off2, data); |
75e6f36f | 205 | } |
e1f36503 JA |
206 | } |
207 | break; | |
208 | } | |
209 | case FIO_OPT_STR_STORE: | |
210 | cp = td_var(data, o->off1); | |
211 | *cp = strdup(ptr); | |
212 | break; | |
213 | case FIO_OPT_RANGE: { | |
b765a372 | 214 | char tmp[128]; |
e1f36503 JA |
215 | char *p1, *p2; |
216 | ||
0bbab0e7 | 217 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
b765a372 JA |
218 | |
219 | p1 = strchr(tmp, '-'); | |
e1f36503 | 220 | if (!p1) { |
0c9baf91 JA |
221 | p1 = strchr(tmp, ':'); |
222 | if (!p1) { | |
223 | ret = 1; | |
224 | break; | |
225 | } | |
e1f36503 JA |
226 | } |
227 | ||
228 | p2 = p1 + 1; | |
229 | *p1 = '\0'; | |
b765a372 | 230 | p1 = tmp; |
e1f36503 JA |
231 | |
232 | ret = 1; | |
233 | if (!check_range_bytes(p1, &ul1) && !check_range_bytes(p2, &ul2)) { | |
234 | ret = 0; | |
e1f36503 | 235 | if (ul1 > ul2) { |
f90eff5a JA |
236 | unsigned long foo = ul1; |
237 | ||
238 | ul1 = ul2; | |
239 | ul2 = foo; | |
240 | } | |
241 | ||
242 | if (first) { | |
17abbe89 JA |
243 | val_store(ilp, ul1, o->off1, data); |
244 | val_store(ilp, ul2, o->off2, data); | |
245 | } | |
787f7e95 | 246 | if (!more && o->off3 && o->off4) { |
17abbe89 JA |
247 | val_store(ilp, ul1, o->off3, data); |
248 | val_store(ilp, ul2, o->off4, data); | |
e1f36503 | 249 | } |
17abbe89 JA |
250 | } |
251 | ||
e1f36503 JA |
252 | break; |
253 | } | |
13335ddb JA |
254 | case FIO_OPT_INT: |
255 | case FIO_OPT_BOOL: { | |
e1f36503 JA |
256 | fio_opt_int_fn *fn = o->cb; |
257 | ||
258 | ret = check_int(ptr, &il); | |
259 | if (ret) | |
260 | break; | |
261 | ||
db8e0165 JA |
262 | if (o->maxval && il > (int) o->maxval) { |
263 | fprintf(stderr, "max value out of range: %d (%d max)\n", il, o->maxval); | |
264 | return 1; | |
265 | } | |
266 | if (o->minval && il < o->minval) { | |
267 | fprintf(stderr, "min value out of range: %d (%d min)\n", il, o->minval); | |
268 | return 1; | |
269 | } | |
e1f36503 | 270 | |
76a43db4 JA |
271 | if (o->neg) |
272 | il = !il; | |
273 | ||
e1f36503 JA |
274 | if (fn) |
275 | ret = fn(data, &il); | |
276 | else { | |
17abbe89 JA |
277 | if (first) |
278 | val_store(ilp, il, o->off1, data); | |
787f7e95 | 279 | if (!more && o->off2) |
17abbe89 | 280 | val_store(ilp, il, o->off2, data); |
e1f36503 JA |
281 | } |
282 | break; | |
283 | } | |
284 | case FIO_OPT_STR_SET: { | |
285 | fio_opt_str_set_fn *fn = o->cb; | |
286 | ||
287 | if (fn) | |
288 | ret = fn(data); | |
289 | else { | |
17abbe89 JA |
290 | if (first) |
291 | val_store(ilp, 1, o->off1, data); | |
787f7e95 | 292 | if (!more && o->off2) |
17abbe89 | 293 | val_store(ilp, 1, o->off2, data); |
e1f36503 JA |
294 | } |
295 | break; | |
296 | } | |
297 | default: | |
1e97cce9 | 298 | fprintf(stderr, "Bad option type %u\n", o->type); |
e1f36503 JA |
299 | ret = 1; |
300 | } | |
cb2c86fd | 301 | |
e1f36503 | 302 | return ret; |
cb2c86fd JA |
303 | } |
304 | ||
f90eff5a JA |
305 | static int handle_option(struct fio_option *o, const char *ptr, void *data) |
306 | { | |
92b586f8 | 307 | const char *ptr2 = NULL; |
787f7e95 | 308 | int r1, r2; |
f90eff5a JA |
309 | |
310 | /* | |
787f7e95 JA |
311 | * See if we have a second set of parameters, hidden after a comma. |
312 | * Do this before parsing the first round, to check if we should | |
313 | * copy set 1 options to set 2. | |
f90eff5a | 314 | */ |
ed92ac0c | 315 | if (ptr && (o->type != FIO_OPT_STR_STORE)) { |
92b586f8 | 316 | ptr2 = strchr(ptr, ','); |
0c9baf91 JA |
317 | if (!ptr2) |
318 | ptr2 = strchr(ptr, ':'); | |
319 | } | |
787f7e95 JA |
320 | |
321 | /* | |
322 | * Don't return early if parsing the first option fails - if | |
323 | * we are doing multiple arguments, we can allow the first one | |
324 | * being empty. | |
325 | */ | |
326 | r1 = __handle_option(o, ptr, data, 1, !!ptr2); | |
327 | ||
f90eff5a | 328 | if (!ptr2) |
787f7e95 | 329 | return r1; |
f90eff5a JA |
330 | |
331 | ptr2++; | |
787f7e95 JA |
332 | r2 = __handle_option(o, ptr2, data, 0, 0); |
333 | ||
334 | return r1 && r2; | |
f90eff5a JA |
335 | } |
336 | ||
b4692828 JA |
337 | int parse_cmd_option(const char *opt, const char *val, |
338 | struct fio_option *options, void *data) | |
339 | { | |
340 | struct fio_option *o; | |
341 | ||
342 | o = find_option(options, opt); | |
343 | if (!o) { | |
344 | fprintf(stderr, "Bad option %s\n", opt); | |
345 | return 1; | |
346 | } | |
347 | ||
b1508cf9 JA |
348 | if (!handle_option(o, val, data)) |
349 | return 0; | |
350 | ||
351 | fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val); | |
352 | return 1; | |
b4692828 JA |
353 | } |
354 | ||
e1f36503 | 355 | int parse_option(const char *opt, struct fio_option *options, void *data) |
cb2c86fd | 356 | { |
b4692828 | 357 | struct fio_option *o; |
e1f36503 JA |
358 | char *pre, *post; |
359 | char tmp[64]; | |
360 | ||
0bbab0e7 | 361 | strncpy(tmp, opt, sizeof(tmp) - 1); |
e1f36503 JA |
362 | |
363 | pre = strchr(tmp, '='); | |
364 | if (pre) { | |
365 | post = pre; | |
366 | *pre = '\0'; | |
367 | pre = tmp; | |
368 | post++; | |
369 | o = find_option(options, pre); | |
370 | } else { | |
371 | o = find_option(options, tmp); | |
372 | post = NULL; | |
373 | } | |
cb2c86fd | 374 | |
e1f36503 JA |
375 | if (!o) { |
376 | fprintf(stderr, "Bad option %s\n", tmp); | |
377 | return 1; | |
378 | } | |
379 | ||
b1508cf9 JA |
380 | if (!handle_option(o, post, data)) |
381 | return 0; | |
382 | ||
383 | fprintf(stderr, "fio: failed parsing %s\n", opt); | |
384 | return 1; | |
e1f36503 | 385 | } |
fd28ca49 | 386 | |
15f7918f JA |
387 | static void show_option_range(struct fio_option *o) |
388 | { | |
389 | if (!o->minval && !o->maxval) | |
390 | return; | |
391 | ||
392 | printf("%16s: min=%d, max=%d\n", "range", o->minval, o->maxval); | |
393 | } | |
394 | ||
395 | static void show_option_values(struct fio_option *o) | |
396 | { | |
397 | const char *msg; | |
398 | int i = 0; | |
399 | ||
400 | if (!o->posval) | |
401 | return; | |
402 | ||
403 | do { | |
404 | msg = o->posval[i]; | |
405 | if (!msg) | |
406 | break; | |
407 | ||
408 | if (!i) | |
409 | printf("%16s: ", "valid values"); | |
410 | ||
411 | printf("%s,", msg); | |
412 | i++; | |
413 | } while (1); | |
414 | ||
415 | if (i) | |
416 | printf("\n"); | |
417 | } | |
418 | ||
fd28ca49 JA |
419 | int show_cmd_help(struct fio_option *options, const char *name) |
420 | { | |
421 | int show_all = !strcmp(name, "all"); | |
fd28ca49 JA |
422 | const char *typehelp[] = { |
423 | "string (opt=bla)", | |
424 | "string with possible k/m/g postfix (opt=4k)", | |
425 | "string with range and postfix (opt=1k-4k)", | |
426 | "string with time postfix (opt=10s)", | |
427 | "string (opt=bla)", | |
428 | "string with dual range (opt=1k-4k,4k-8k)", | |
429 | "integer value (opt=100)", | |
13335ddb | 430 | "boolean value (opt=1)", |
fd28ca49 JA |
431 | "no argument (opt)", |
432 | }; | |
4945ba12 | 433 | struct fio_option *o; |
29fc6afe | 434 | int found = 0; |
fd28ca49 | 435 | |
4945ba12 | 436 | for (o = &options[0]; o->name; o++) { |
fd28ca49 JA |
437 | int match = !strcmp(name, o->name); |
438 | ||
439 | if (show_all || match) { | |
29fc6afe | 440 | found = 1; |
facba0e5 | 441 | printf("%16s: %s\n", o->name, o->help); |
4945ba12 JA |
442 | if (show_all) |
443 | continue; | |
fd28ca49 JA |
444 | } |
445 | ||
70df2f19 JA |
446 | if (!match) |
447 | continue; | |
448 | ||
4945ba12 JA |
449 | printf("%16s: %s\n", "type", typehelp[o->type]); |
450 | printf("%16s: %s\n", "default", o->def ? o->def : "no default"); | |
451 | show_option_range(o); | |
452 | show_option_values(o); | |
fd28ca49 JA |
453 | } |
454 | ||
29fc6afe JA |
455 | if (found) |
456 | return 0; | |
fd28ca49 | 457 | |
29fc6afe JA |
458 | printf("No such command: %s\n", name); |
459 | return 1; | |
fd28ca49 | 460 | } |
ee738499 | 461 | |
13335ddb JA |
462 | /* |
463 | * Handle parsing of default parameters. | |
464 | */ | |
ee738499 JA |
465 | void fill_default_options(void *data, struct fio_option *options) |
466 | { | |
4945ba12 | 467 | struct fio_option *o; |
ee738499 | 468 | |
4945ba12 | 469 | for (o = &options[0]; o->name; o++) |
ee738499 JA |
470 | if (o->def) |
471 | handle_option(o, o->def, data); | |
ee738499 | 472 | } |
13335ddb JA |
473 | |
474 | /* | |
475 | * Sanitize the options structure. For now it just sets min/max for bool | |
5b0a8880 | 476 | * values and whether both callback and offsets are given. |
13335ddb JA |
477 | */ |
478 | void options_init(struct fio_option *options) | |
479 | { | |
4945ba12 | 480 | struct fio_option *o; |
13335ddb | 481 | |
4945ba12 | 482 | for (o = &options[0]; o->name; o++) { |
13335ddb JA |
483 | if (o->type == FIO_OPT_BOOL) { |
484 | o->minval = 0; | |
485 | o->maxval = 1; | |
486 | } | |
5b0a8880 JA |
487 | if (o->cb && (o->off1 || o->off2 || o->off3 || o->off4)) |
488 | fprintf(stderr, "Option %s: both cb and offset given\n", o->name); | |
13335ddb JA |
489 | } |
490 | } |