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clean up outerhandle when a tcpdns socket is disconnected

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this prevents a crash when some non-netmgr thread, such as a
recursive lookup, times out after the TCP socket is already
disconnected.
This commit is contained in:
Evan Hunt
2020-06-20 15:03:05 -07:00
parent bcbc7e2b10
commit 3704c4fff2
4 changed files with 38 additions and 16 deletions
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10
lib/isc/netmgr/netmgr.c
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@@ -987,6 +987,16 @@ isc__nmsocket_init(isc_nmsocket_t *sock, isc_nm_t *mgr, isc_nmsocket_type type,
sock->magic = NMSOCK_MAGIC;
}
void
isc__nmsocket_clearcb(isc_nmsocket_t *sock) {
REQUIRE(VALID_NMSOCK(sock));
sock->rcb.recv = NULL;
sock->rcbarg = NULL;
sock->accept_cb.accept = NULL;
sock->accept_cbarg = NULL;
}
void
isc__nm_alloc_cb(uv_handle_t *handle, size_t size, uv_buf_t *buf) {
isc_nmsocket_t *sock = uv_handle_get_data(handle);