| 517 | } |
| 518 | |
| 519 | static enum parse_opt_result parse_long_opt( |
| 520 | struct parse_opt_ctx_t *p, const char *arg, |
| 521 | const struct option *options) |
| 522 | { |
| 523 | const char *arg_end = strchrnul(arg, '='); |
| 524 | const char *arg_start = arg; |
| 525 | enum opt_parsed flags = OPT_LONG; |
| 526 | int arg_starts_with_no_no = 0; |
| 527 | struct parsed_option abbrev = { .option = NULL, .flags = OPT_LONG }; |
| 528 | struct parsed_option ambiguous = { .option = NULL, .flags = OPT_LONG }; |
| 529 | |
| 530 | if (skip_prefix(arg_start, "no-", &arg_start)) { |
| 531 | if (skip_prefix(arg_start, "no-", &arg_start)) |
| 532 | arg_starts_with_no_no = 1; |
| 533 | else |
| 534 | flags |= OPT_UNSET; |
| 535 | } |
| 536 | |
| 537 | for (; options->type != OPTION_END; options++) { |
| 538 | const char *rest, *long_name = options->long_name; |
| 539 | enum opt_parsed opt_flags = OPT_LONG; |
| 540 | int allow_unset = !(options->flags & PARSE_OPT_NONEG); |
| 541 | |
| 542 | if (options->type == OPTION_SUBCOMMAND) |
| 543 | continue; |
| 544 | if (!long_name) |
| 545 | continue; |
| 546 | |
| 547 | if (skip_prefix(long_name, "no-", &long_name)) |
| 548 | opt_flags |= OPT_UNSET; |
| 549 | else if (arg_starts_with_no_no) |
| 550 | continue; |
| 551 | |
| 552 | if (((flags ^ opt_flags) & OPT_UNSET) && !allow_unset) |
| 553 | continue; |
| 554 | |
| 555 | if (skip_prefix(arg_start, long_name, &rest)) { |
| 556 | if (*rest == '=') |
| 557 | p->opt = rest + 1; |
| 558 | else if (*rest) |
| 559 | continue; |
| 560 | return get_value(p, options, flags ^ opt_flags); |
| 561 | } |
| 562 | |
| 563 | /* abbreviated? */ |
| 564 | if (!strncmp(long_name, arg_start, arg_end - arg_start)) |
| 565 | register_abbrev(p, options, flags ^ opt_flags, |
| 566 | &abbrev, &ambiguous); |
| 567 | |
| 568 | /* negated and abbreviated very much? */ |
| 569 | if (allow_unset && starts_with("no-", arg)) |
| 570 | register_abbrev(p, options, OPT_UNSET ^ opt_flags, |
| 571 | &abbrev, &ambiguous); |
| 572 | } |
| 573 | |
| 574 | if (disallow_abbreviated_options && (ambiguous.option || abbrev.option)) |
| 575 | die("disallowed abbreviated or ambiguous option '%.*s'", |
| 576 | (int)(arg_end - arg), arg); |
no test coverage detected