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; | |
f3502ba2 JA |
43 | case 'e': |
44 | case 'E': | |
45 | return 1024 * 1024 * 1024 * 1024UL; | |
cb2c86fd JA |
46 | default: |
47 | return 1; | |
48 | } | |
49 | } | |
50 | ||
51 | /* | |
e1f36503 | 52 | * convert string into decimal value, noting any size suffix |
cb2c86fd | 53 | */ |
63f29372 | 54 | static int str_to_decimal(const char *str, long long *val, int kilo) |
cb2c86fd | 55 | { |
cb2c86fd JA |
56 | int len; |
57 | ||
cb2c86fd | 58 | len = strlen(str); |
f90eff5a JA |
59 | if (!len) |
60 | return 1; | |
cb2c86fd | 61 | |
675de85a | 62 | *val = strtoll(str, NULL, 10); |
cda866ca | 63 | if (*val == LONG_MAX && errno == ERANGE) |
cb2c86fd JA |
64 | return 1; |
65 | ||
66 | if (kilo) | |
67 | *val *= get_mult_bytes(str[len - 1]); | |
68 | else | |
69 | *val *= get_mult_time(str[len - 1]); | |
787f7e95 | 70 | |
cb2c86fd JA |
71 | return 0; |
72 | } | |
73 | ||
63f29372 | 74 | static int check_str_bytes(const char *p, long long *val) |
cb2c86fd | 75 | { |
cb2c86fd JA |
76 | return str_to_decimal(p, val, 1); |
77 | } | |
78 | ||
63f29372 | 79 | static int check_str_time(const char *p, long long *val) |
cb2c86fd | 80 | { |
cb2c86fd JA |
81 | return str_to_decimal(p, val, 0); |
82 | } | |
83 | ||
84 | void strip_blank_front(char **p) | |
85 | { | |
86 | char *s = *p; | |
87 | ||
88 | while (isspace(*s)) | |
89 | s++; | |
90 | } | |
91 | ||
92 | void strip_blank_end(char *p) | |
93 | { | |
94 | char *s = p + strlen(p) - 1; | |
95 | ||
96 | while (isspace(*s) || iscntrl(*s)) | |
97 | s--; | |
98 | ||
99 | *(s + 1) = '\0'; | |
100 | } | |
101 | ||
63f29372 | 102 | static int check_range_bytes(const char *str, long *val) |
cb2c86fd JA |
103 | { |
104 | char suffix; | |
105 | ||
787f7e95 JA |
106 | if (!strlen(str)) |
107 | return 1; | |
108 | ||
cb2c86fd JA |
109 | if (sscanf(str, "%lu%c", val, &suffix) == 2) { |
110 | *val *= get_mult_bytes(suffix); | |
111 | return 0; | |
112 | } | |
113 | ||
114 | if (sscanf(str, "%lu", val) == 1) | |
115 | return 0; | |
116 | ||
117 | return 1; | |
118 | } | |
119 | ||
63f29372 | 120 | static int check_int(const char *p, int *val) |
cb2c86fd | 121 | { |
787f7e95 JA |
122 | if (!strlen(p)) |
123 | return 1; | |
e1f36503 JA |
124 | if (sscanf(p, "%u", val) == 1) |
125 | return 0; | |
cb2c86fd | 126 | |
e1f36503 JA |
127 | return 1; |
128 | } | |
cb2c86fd | 129 | |
e1f36503 JA |
130 | static struct fio_option *find_option(struct fio_option *options, |
131 | const char *opt) | |
132 | { | |
4945ba12 | 133 | struct fio_option *o; |
cb2c86fd | 134 | |
4945ba12 | 135 | for (o = &options[0]; o->name; o++) { |
e1f36503 JA |
136 | if (!strcmp(o->name, opt)) |
137 | return o; | |
03b74b3e JA |
138 | else if (o->alias && !strcmp(o->alias, opt)) |
139 | return o; | |
33963c6c | 140 | } |
cb2c86fd | 141 | |
e1f36503 | 142 | return NULL; |
cb2c86fd JA |
143 | } |
144 | ||
17abbe89 JA |
145 | #define val_store(ptr, val, off, data) \ |
146 | do { \ | |
147 | ptr = td_var((data), (off)); \ | |
148 | *ptr = (val); \ | |
149 | } while (0) | |
150 | ||
f90eff5a | 151 | static int __handle_option(struct fio_option *o, const char *ptr, void *data, |
787f7e95 | 152 | int first, int more) |
cb2c86fd | 153 | { |
63f29372 JA |
154 | int il, *ilp; |
155 | long long ull, *ullp; | |
156 | long ul1, ul2; | |
b4692828 | 157 | char **cp; |
e1f36503 | 158 | int ret = 0, is_time = 0; |
cb2c86fd | 159 | |
08e26e35 JA |
160 | if (!ptr && o->type != FIO_OPT_STR_SET) { |
161 | fprintf(stderr, "Option %s requires an argument\n", o->name); | |
162 | return 1; | |
163 | } | |
164 | ||
e1f36503 JA |
165 | switch (o->type) { |
166 | case FIO_OPT_STR: { | |
167 | fio_opt_str_fn *fn = o->cb; | |
cb2c86fd | 168 | |
e1f36503 JA |
169 | ret = fn(data, ptr); |
170 | break; | |
171 | } | |
172 | case FIO_OPT_STR_VAL_TIME: | |
173 | is_time = 1; | |
75e6f36f JA |
174 | case FIO_OPT_STR_VAL: |
175 | case FIO_OPT_STR_VAL_INT: { | |
e1f36503 JA |
176 | fio_opt_str_val_fn *fn = o->cb; |
177 | ||
178 | if (is_time) | |
179 | ret = check_str_time(ptr, &ull); | |
180 | else | |
181 | ret = check_str_bytes(ptr, &ull); | |
182 | ||
183 | if (ret) | |
184 | break; | |
185 | ||
db8e0165 JA |
186 | if (o->maxval && ull > o->maxval) { |
187 | fprintf(stderr, "max value out of range: %lld (%d max)\n", ull, o->maxval); | |
188 | return 1; | |
189 | } | |
190 | if (o->minval && ull < o->minval) { | |
191 | fprintf(stderr, "min value out of range: %lld (%d min)\n", ull, o->minval); | |
192 | return 1; | |
193 | } | |
e1f36503 JA |
194 | |
195 | if (fn) | |
196 | ret = fn(data, &ull); | |
197 | else { | |
75e6f36f | 198 | if (o->type == FIO_OPT_STR_VAL_INT) { |
17abbe89 JA |
199 | if (first) |
200 | val_store(ilp, ull, o->off1, data); | |
787f7e95 | 201 | if (!more && o->off2) |
17abbe89 | 202 | val_store(ilp, ull, o->off2, data); |
75e6f36f | 203 | } else { |
17abbe89 JA |
204 | if (first) |
205 | val_store(ullp, ull, o->off1, data); | |
787f7e95 | 206 | if (!more && o->off2) |
17abbe89 | 207 | val_store(ullp, ull, o->off2, data); |
75e6f36f | 208 | } |
e1f36503 JA |
209 | } |
210 | break; | |
211 | } | |
212 | case FIO_OPT_STR_STORE: | |
213 | cp = td_var(data, o->off1); | |
214 | *cp = strdup(ptr); | |
215 | break; | |
216 | case FIO_OPT_RANGE: { | |
b765a372 | 217 | char tmp[128]; |
e1f36503 JA |
218 | char *p1, *p2; |
219 | ||
0bbab0e7 | 220 | strncpy(tmp, ptr, sizeof(tmp) - 1); |
b765a372 JA |
221 | |
222 | p1 = strchr(tmp, '-'); | |
e1f36503 | 223 | if (!p1) { |
0c9baf91 JA |
224 | p1 = strchr(tmp, ':'); |
225 | if (!p1) { | |
226 | ret = 1; | |
227 | break; | |
228 | } | |
e1f36503 JA |
229 | } |
230 | ||
231 | p2 = p1 + 1; | |
232 | *p1 = '\0'; | |
b765a372 | 233 | p1 = tmp; |
e1f36503 JA |
234 | |
235 | ret = 1; | |
236 | if (!check_range_bytes(p1, &ul1) && !check_range_bytes(p2, &ul2)) { | |
237 | ret = 0; | |
e1f36503 | 238 | if (ul1 > ul2) { |
f90eff5a JA |
239 | unsigned long foo = ul1; |
240 | ||
241 | ul1 = ul2; | |
242 | ul2 = foo; | |
243 | } | |
244 | ||
245 | if (first) { | |
17abbe89 JA |
246 | val_store(ilp, ul1, o->off1, data); |
247 | val_store(ilp, ul2, o->off2, data); | |
248 | } | |
787f7e95 | 249 | if (!more && o->off3 && o->off4) { |
17abbe89 JA |
250 | val_store(ilp, ul1, o->off3, data); |
251 | val_store(ilp, ul2, o->off4, data); | |
e1f36503 | 252 | } |
17abbe89 JA |
253 | } |
254 | ||
e1f36503 JA |
255 | break; |
256 | } | |
13335ddb JA |
257 | case FIO_OPT_INT: |
258 | case FIO_OPT_BOOL: { | |
e1f36503 JA |
259 | fio_opt_int_fn *fn = o->cb; |
260 | ||
261 | ret = check_int(ptr, &il); | |
262 | if (ret) | |
263 | break; | |
264 | ||
db8e0165 JA |
265 | if (o->maxval && il > (int) o->maxval) { |
266 | fprintf(stderr, "max value out of range: %d (%d max)\n", il, o->maxval); | |
267 | return 1; | |
268 | } | |
269 | if (o->minval && il < o->minval) { | |
270 | fprintf(stderr, "min value out of range: %d (%d min)\n", il, o->minval); | |
271 | return 1; | |
272 | } | |
e1f36503 | 273 | |
76a43db4 JA |
274 | if (o->neg) |
275 | il = !il; | |
276 | ||
e1f36503 JA |
277 | if (fn) |
278 | ret = fn(data, &il); | |
279 | else { | |
17abbe89 JA |
280 | if (first) |
281 | val_store(ilp, il, o->off1, data); | |
787f7e95 | 282 | if (!more && o->off2) |
17abbe89 | 283 | val_store(ilp, il, o->off2, data); |
e1f36503 JA |
284 | } |
285 | break; | |
286 | } | |
287 | case FIO_OPT_STR_SET: { | |
288 | fio_opt_str_set_fn *fn = o->cb; | |
289 | ||
290 | if (fn) | |
291 | ret = fn(data); | |
292 | else { | |
17abbe89 JA |
293 | if (first) |
294 | val_store(ilp, 1, o->off1, data); | |
787f7e95 | 295 | if (!more && o->off2) |
17abbe89 | 296 | val_store(ilp, 1, o->off2, data); |
e1f36503 JA |
297 | } |
298 | break; | |
299 | } | |
300 | default: | |
1e97cce9 | 301 | fprintf(stderr, "Bad option type %u\n", o->type); |
e1f36503 JA |
302 | ret = 1; |
303 | } | |
cb2c86fd | 304 | |
e1f36503 | 305 | return ret; |
cb2c86fd JA |
306 | } |
307 | ||
f90eff5a JA |
308 | static int handle_option(struct fio_option *o, const char *ptr, void *data) |
309 | { | |
92b586f8 | 310 | const char *ptr2 = NULL; |
787f7e95 | 311 | int r1, r2; |
f90eff5a JA |
312 | |
313 | /* | |
787f7e95 JA |
314 | * See if we have a second set of parameters, hidden after a comma. |
315 | * Do this before parsing the first round, to check if we should | |
316 | * copy set 1 options to set 2. | |
f90eff5a | 317 | */ |
ed92ac0c | 318 | if (ptr && (o->type != FIO_OPT_STR_STORE)) { |
92b586f8 | 319 | ptr2 = strchr(ptr, ','); |
0c9baf91 JA |
320 | if (!ptr2) |
321 | ptr2 = strchr(ptr, ':'); | |
322 | } | |
787f7e95 JA |
323 | |
324 | /* | |
325 | * Don't return early if parsing the first option fails - if | |
326 | * we are doing multiple arguments, we can allow the first one | |
327 | * being empty. | |
328 | */ | |
329 | r1 = __handle_option(o, ptr, data, 1, !!ptr2); | |
330 | ||
f90eff5a | 331 | if (!ptr2) |
787f7e95 | 332 | return r1; |
f90eff5a JA |
333 | |
334 | ptr2++; | |
787f7e95 JA |
335 | r2 = __handle_option(o, ptr2, data, 0, 0); |
336 | ||
337 | return r1 && r2; | |
f90eff5a JA |
338 | } |
339 | ||
b4692828 JA |
340 | int parse_cmd_option(const char *opt, const char *val, |
341 | struct fio_option *options, void *data) | |
342 | { | |
343 | struct fio_option *o; | |
344 | ||
345 | o = find_option(options, opt); | |
346 | if (!o) { | |
347 | fprintf(stderr, "Bad option %s\n", opt); | |
348 | return 1; | |
349 | } | |
350 | ||
b1508cf9 JA |
351 | if (!handle_option(o, val, data)) |
352 | return 0; | |
353 | ||
354 | fprintf(stderr, "fio: failed parsing %s=%s\n", opt, val); | |
355 | return 1; | |
b4692828 JA |
356 | } |
357 | ||
e1f36503 | 358 | int parse_option(const char *opt, struct fio_option *options, void *data) |
cb2c86fd | 359 | { |
b4692828 | 360 | struct fio_option *o; |
e1f36503 JA |
361 | char *pre, *post; |
362 | char tmp[64]; | |
363 | ||
0bbab0e7 | 364 | strncpy(tmp, opt, sizeof(tmp) - 1); |
e1f36503 JA |
365 | |
366 | pre = strchr(tmp, '='); | |
367 | if (pre) { | |
368 | post = pre; | |
369 | *pre = '\0'; | |
370 | pre = tmp; | |
371 | post++; | |
372 | o = find_option(options, pre); | |
373 | } else { | |
374 | o = find_option(options, tmp); | |
375 | post = NULL; | |
376 | } | |
cb2c86fd | 377 | |
e1f36503 JA |
378 | if (!o) { |
379 | fprintf(stderr, "Bad option %s\n", tmp); | |
380 | return 1; | |
381 | } | |
382 | ||
b1508cf9 JA |
383 | if (!handle_option(o, post, data)) |
384 | return 0; | |
385 | ||
386 | fprintf(stderr, "fio: failed parsing %s\n", opt); | |
387 | return 1; | |
e1f36503 | 388 | } |
fd28ca49 | 389 | |
15f7918f JA |
390 | static void show_option_range(struct fio_option *o) |
391 | { | |
392 | if (!o->minval && !o->maxval) | |
393 | return; | |
394 | ||
395 | printf("%16s: min=%d, max=%d\n", "range", o->minval, o->maxval); | |
396 | } | |
397 | ||
398 | static void show_option_values(struct fio_option *o) | |
399 | { | |
400 | const char *msg; | |
401 | int i = 0; | |
402 | ||
403 | if (!o->posval) | |
404 | return; | |
405 | ||
406 | do { | |
407 | msg = o->posval[i]; | |
408 | if (!msg) | |
409 | break; | |
410 | ||
411 | if (!i) | |
412 | printf("%16s: ", "valid values"); | |
413 | ||
414 | printf("%s,", msg); | |
415 | i++; | |
416 | } while (1); | |
417 | ||
418 | if (i) | |
419 | printf("\n"); | |
420 | } | |
421 | ||
fd28ca49 JA |
422 | int show_cmd_help(struct fio_option *options, const char *name) |
423 | { | |
424 | int show_all = !strcmp(name, "all"); | |
fd28ca49 JA |
425 | const char *typehelp[] = { |
426 | "string (opt=bla)", | |
427 | "string with possible k/m/g postfix (opt=4k)", | |
428 | "string with range and postfix (opt=1k-4k)", | |
429 | "string with time postfix (opt=10s)", | |
430 | "string (opt=bla)", | |
431 | "string with dual range (opt=1k-4k,4k-8k)", | |
432 | "integer value (opt=100)", | |
13335ddb | 433 | "boolean value (opt=1)", |
fd28ca49 JA |
434 | "no argument (opt)", |
435 | }; | |
4945ba12 | 436 | struct fio_option *o; |
29fc6afe | 437 | int found = 0; |
fd28ca49 | 438 | |
4945ba12 | 439 | for (o = &options[0]; o->name; o++) { |
fd28ca49 JA |
440 | int match = !strcmp(name, o->name); |
441 | ||
442 | if (show_all || match) { | |
29fc6afe | 443 | found = 1; |
facba0e5 | 444 | printf("%16s: %s\n", o->name, o->help); |
4945ba12 JA |
445 | if (show_all) |
446 | continue; | |
fd28ca49 JA |
447 | } |
448 | ||
70df2f19 JA |
449 | if (!match) |
450 | continue; | |
451 | ||
4945ba12 JA |
452 | printf("%16s: %s\n", "type", typehelp[o->type]); |
453 | printf("%16s: %s\n", "default", o->def ? o->def : "no default"); | |
454 | show_option_range(o); | |
455 | show_option_values(o); | |
fd28ca49 JA |
456 | } |
457 | ||
29fc6afe JA |
458 | if (found) |
459 | return 0; | |
fd28ca49 | 460 | |
29fc6afe JA |
461 | printf("No such command: %s\n", name); |
462 | return 1; | |
fd28ca49 | 463 | } |
ee738499 | 464 | |
13335ddb JA |
465 | /* |
466 | * Handle parsing of default parameters. | |
467 | */ | |
ee738499 JA |
468 | void fill_default_options(void *data, struct fio_option *options) |
469 | { | |
4945ba12 | 470 | struct fio_option *o; |
ee738499 | 471 | |
4945ba12 | 472 | for (o = &options[0]; o->name; o++) |
ee738499 JA |
473 | if (o->def) |
474 | handle_option(o, o->def, data); | |
ee738499 | 475 | } |
13335ddb JA |
476 | |
477 | /* | |
478 | * Sanitize the options structure. For now it just sets min/max for bool | |
5b0a8880 | 479 | * values and whether both callback and offsets are given. |
13335ddb JA |
480 | */ |
481 | void options_init(struct fio_option *options) | |
482 | { | |
4945ba12 | 483 | struct fio_option *o; |
13335ddb | 484 | |
4945ba12 | 485 | for (o = &options[0]; o->name; o++) { |
13335ddb JA |
486 | if (o->type == FIO_OPT_BOOL) { |
487 | o->minval = 0; | |
488 | o->maxval = 1; | |
489 | } | |
5b0a8880 JA |
490 | if (o->cb && (o->off1 || o->off2 || o->off3 || o->off4)) |
491 | fprintf(stderr, "Option %s: both cb and offset given\n", o->name); | |
13335ddb JA |
492 | } |
493 | } |