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resolv: Implement no-aaaa stub resolver option

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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Florian Weimer
2022-06-24 18:16:41 +02:00
parent 62a321b12d
commit f282cdbe7f
12 changed files with 785 additions and 12 deletions
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8
resolv/resolv-internal.h
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@ -85,6 +85,14 @@ int __res_context_send (struct resolv_context *, const unsigned char *, int,
int *, int *, int *);
libc_hidden_proto (__res_context_send)
/* Return true if the query has been handled in RES_NOAAAA mode. For
that, RES_NOAAAA must be active, and the question type must be AAAA.
The caller is expected to return *RESULT as the return value. */
bool __res_handle_no_aaaa (struct resolv_context *ctx,
const unsigned char *buf, int buflen,
unsigned char *ans, int anssiz, int *result)
attribute_hidden;
/* Internal function similar to res_hostalias. */
const char *__res_context_hostalias (struct resolv_context *,
const char *, char *, size_t);