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mdns: fix bit order issue in DNS header flags

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The bit field in the header flags does not match its intended order on
little endian machines. The PR removes the bit field and uses bit
operations instead.
This commit is contained in:
Jiacheng Guo
2022-07-26 15:01:49 +08:00
committed by David Cermak
parent 85ba60e405
commit c4e85bd099
2 changed files with 15 additions and 27 deletions
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20
components/mdns/private_include/mdns_private.h
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@ -71,7 +71,9 @@
#define MDNS_ANSWER_A_TTL 120
#define MDNS_ANSWER_AAAA_TTL 120
#define MDNS_FLAGS_AUTHORITATIVE 0x8400
#define MDNS_FLAGS_QUERY_REPSONSE 0x8000
#define MDNS_FLAGS_AUTHORITATIVE 0x0400
#define MDNS_FLAGS_QR_AUTHORITATIVE (MDNS_FLAGS_QUERY_REPSONSE | MDNS_FLAGS_AUTHORITATIVE)
#define MDNS_FLAGS_DISTRIBUTED 0x0200
#define MDNS_NAME_REF 0xC000
@ -211,21 +213,7 @@ typedef enum {
typedef struct {
uint16_t id;
union {
struct {
uint16_t qr :1;
uint16_t opCode :4;
uint16_t aa :1;
uint16_t tc :1;
uint16_t rd :1;
uint16_t ra :1;
uint16_t z :1;
uint16_t ad :1;
uint16_t cd :1;
uint16_t rCode :4;//response/error code
};
uint16_t value;
} flags;
uint16_t flags;
uint16_t questions; //QDCOUNT
uint16_t answers; //ANCOUNT
uint16_t servers; //NSCOUNT