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android_bionic/libc/dns
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Elliott Hughes d0bbfa8327 Make res_init() work again. 
Change 75830fb836 to fix _nres
initialization to be thread safe accidentally introduced a behavior
change whereby res_init() became a no-op. It also failed to remove all
direct accesses to _nres.

Move the file over to C++ so we can let RAII ensure we're always holding
a lock while using the global state, make all callers access the global
state via this class, and restore the previous behavior of res_init().

Test: atest DnsResolverTest
Bug: 166235340
Change-Id: Ib390a7eac063bc0ff5eeba755e8c74ef1383004e
 		2021-04-08 12:04:05 -07:00
..
include Make res_init() work again. 2021-04-08 12:04:05 -07:00
nameser Test for ns_parserr() and got a heap-buffer-overflow 2019-08-29 22:18:37 +08:00
net Make res_init() work again. 2021-04-08 12:04:05 -07:00
resolv Make res_init() work again. 2021-04-08 12:04:05 -07:00