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LibCore: Define and use a fallible, OS-independent getgrent(_r) wrapper
Rather than maintaining a list of #ifdef guards to check systems that do not provide the reentrant version of getgrent, we can use C++ concepts to let the compiler perform this check for us. While we're at it, we can also provide this wrapper as fallible to let the caller TRY calling it.
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3 changed files with 61 additions and 31 deletions
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@ -126,6 +126,7 @@ ErrorOr<Optional<struct passwd>> getpwent(Span<char> buffer);
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ErrorOr<Optional<struct passwd>> getpwnam(StringView name);
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ErrorOr<Optional<struct group>> getgrnam(StringView name);
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ErrorOr<Optional<struct passwd>> getpwuid(uid_t);
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ErrorOr<Optional<struct group>> getgrent(Span<char> buffer);
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ErrorOr<Optional<struct group>> getgrgid(gid_t);
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ErrorOr<void> clock_settime(clockid_t clock_id, struct timespec* ts);
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ErrorOr<pid_t> posix_spawn(StringView path, posix_spawn_file_actions_t const* file_actions, posix_spawnattr_t const* attr, char* const arguments[], char* const envp[]);
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