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LibCore: Add Core::System::drop_privileges()
In a few places we intentionally drop privileges to reduce the potential security surface area of networked program, with the pattern of: ``` if (setgid(getgid()) || setuid(getuid()) { return 1; } ``` We can make this a bit nicer to use by creating a wrapper.
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@ -109,6 +109,7 @@ ErrorOr<void> setgid(gid_t);
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ErrorOr<void> setegid(gid_t);
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ErrorOr<void> setpgid(pid_t pid, pid_t pgid);
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ErrorOr<pid_t> setsid();
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ErrorOr<void> drop_privileges();
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ErrorOr<bool> isatty(int fd);
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ErrorOr<void> symlink(StringView target, StringView link_path);
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ErrorOr<void> mkdir(StringView path, mode_t);
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