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Add --use-stale-cache option.

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This commit is contained in:
Simon Kelley
2022-08-29 21:44:05 +01:00
parent d21438a7df
commit d334e7c34f
8 changed files with 238 additions and 76 deletions
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7
src/dnsmasq.h
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@@ -279,7 +279,8 @@ struct event_desc {
#define OPT_FILTER_AAAA 68
#define OPT_STRIP_ECS 69
#define OPT_STRIP_MAC 70
#define OPT_LAST 71
#define OPT_STALE_CACHE 71
#define OPT_LAST 72
#define OPTION_BITS (sizeof(unsigned int)*8)
#define OPTION_SIZE ( (OPT_LAST/OPTION_BITS)+((OPT_LAST%OPTION_BITS)!=0) )
@@ -510,6 +511,7 @@ struct crec {
#define F_DOMAINSRV (1u<<28)
#define F_RCODE (1u<<29)
#define F_SRV (1u<<30)
#define F_STALE (1u<<31)
#define UID_NONE 0
/* Values of uid in crecs with F_CONFIG bit set. */
@@ -1340,7 +1342,8 @@ void report_addresses(struct dns_header *header, size_t len, u32 mark);
#endif
size_t answer_request(struct dns_header *header, char *limit, size_t qlen,
struct in_addr local_addr, struct in_addr local_netmask,
time_t now, int ad_reqd, int do_bit, int have_pseudoheader);
time_t now, int ad_reqd, int do_bit, int have_pseudoheader,
int *stale);
int check_for_bogus_wildcard(struct dns_header *header, size_t qlen, char *name,
time_t now);
int check_for_ignored_address(struct dns_header *header, size_t qlen);