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* resolv/resolv.h (RES_SNGLKUP): Define.

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* resolv/res_init.c (res_setoptions): Recognize single-request option.
	* resolv/res_send.c (send_dg): If we sent two requests at once and
	only get one reply before timeout switch to mode where we send the
	second request only after the first answer has been received.
This commit is contained in:
Ulrich Drepper
2009-04-07 02:00:27 +00:00
parent 735be40014
commit ae06191038
4 changed files with 38 additions and 11 deletions
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resolv/resolv.h
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@@ -215,6 +215,7 @@ struct res_sym {
#define RES_NOIP6DOTINT 0x00080000 /* Do not use .ip6.int in IPv6
reverse lookup */
#define RES_USE_EDNS0 0x00100000 /* Use EDNS0. */
#define RES_SNGLKUP 0x00200000 /* one outstanding request at a time */
#define RES_DEFAULT (RES_RECURSE|RES_DEFNAMES|RES_DNSRCH|RES_NOIP6DOTINT)