| 416 | } |
| 417 | |
| 418 | static int |
| 419 | eth_dev_devargs_tokenise(struct rte_kvargs *arglist, const char *str_in) |
| 420 | { |
| 421 | int state; |
| 422 | struct rte_kvargs_pair *pair; |
| 423 | char *letter; |
| 424 | |
| 425 | arglist->str = strdup(str_in); |
| 426 | if (arglist->str == NULL) |
| 427 | return -ENOMEM; |
| 428 | |
| 429 | letter = arglist->str; |
| 430 | state = 0; |
| 431 | arglist->count = 0; |
| 432 | pair = &arglist->pairs[0]; |
| 433 | while (1) { |
| 434 | switch (state) { |
| 435 | case 0: /* Initial */ |
| 436 | if (*letter == '=') |
| 437 | return -EINVAL; |
| 438 | else if (*letter == '\0') |
| 439 | return 0; |
| 440 | |
| 441 | state = 1; |
| 442 | pair->key = letter; |
| 443 | /* fallthrough */ |
| 444 | |
| 445 | case 1: /* Parsing key */ |
| 446 | if (*letter == '=') { |
| 447 | *letter = '\0'; |
| 448 | pair->value = letter + 1; |
| 449 | state = 2; |
| 450 | } else if (*letter == ',' || *letter == '\0') |
| 451 | return -EINVAL; |
| 452 | break; |
| 453 | |
| 454 | |
| 455 | case 2: /* Parsing value */ |
| 456 | if (*letter == '[') |
| 457 | state = 3; |
| 458 | else if (*letter == ',') { |
| 459 | *letter = '\0'; |
| 460 | arglist->count++; |
| 461 | pair = &arglist->pairs[arglist->count]; |
| 462 | state = 0; |
| 463 | } else if (*letter == '\0') { |
| 464 | letter--; |
| 465 | arglist->count++; |
| 466 | pair = &arglist->pairs[arglist->count]; |
| 467 | state = 0; |
| 468 | } |
| 469 | break; |
| 470 | |
| 471 | case 3: /* Parsing list */ |
| 472 | if (*letter == ']') |
| 473 | state = 2; |
| 474 | else if (*letter == '\0') |
| 475 | return -EINVAL; |
no test coverage detected