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A C library for asynchronous DNS requests (grpc依赖)
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c-ares/TODO

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Avoid buffer overflow in RC4 loop comparison (#336) The rc4 function iterates over a buffer of size buffer_len who's maximum value is INT_MAX with a counter of type short that is not guaranteed to have maximum size INT_MAX. In circumstances where short is narrower than int and where buffer_len is larger than the maximum value of a short, it may be possible to loop infinitely as counter will overflow and never be greater than or equal to buffer_len. The solution is to make the comparison be between types of equal width. This commit defines counter as an int. Fix By: Fionn Fitzmaurice (@fionn)
4 years ago
TODO
====
ares_reinit()
- To allow an app to force a re-read of /etc/resolv.conf etc, pretty much
like the res_init() resolver function offers
ares_gethostbyname
- When built to support IPv6, it needs to also support PF_UNSPEC or similar,
so that an application can ask for any protocol and then c-ares would return
all known resolves and not just explicitly IPv4 _or_ IPv6 resolves.
ares_process
- Upon next ABI breakage ares_process() should be changed to return 'int'
and return ARES_ENOTINITIALIZED if ares_library_init() has not been called.
ares_process_fd
- Upon next ABI breakage ares_process_fd() should be changed to return
'int' and return ARES_ENOTINITIALIZED if library has not been initialized.