diff options
| -rw-r--r-- | contrib/tcpdump/extract.h | 53 |
1 files changed, 39 insertions, 14 deletions
diff --git a/contrib/tcpdump/extract.h b/contrib/tcpdump/extract.h index bab63f2..60ecd68 100644 --- a/contrib/tcpdump/extract.h +++ b/contrib/tcpdump/extract.h @@ -51,13 +51,25 @@ typedef struct { u_int32_t val; } __attribute__((packed)) unaligned_u_int32_t; -#define EXTRACT_16BITS(p) \ - ((u_int16_t)ntohs(((const unaligned_u_int16_t *)(p))->val)) -#define EXTRACT_32BITS(p) \ - ((u_int32_t)ntohl(((const unaligned_u_int32_t *)(p))->val)) -#define EXTRACT_64BITS(p) \ - ((u_int64_t)(((u_int64_t)ntohl(((const unaligned_u_int32_t *)(p) + 0)->val)) << 32 | \ - ((u_int64_t)ntohl(((const unaligned_u_int32_t *)(p) + 1)->val)) << 0)) +static inline u_int16_t +EXTRACT_16BITS(const void *p) +{ + return ((u_int16_t)ntohs(((const unaligned_u_int16_t *)(p))->val)); +} + +static inline u_int32_t +EXTRACT_32BITS(const void *p) +{ + return ((u_int32_t)ntohl(((const unaligned_u_int32_t *)(p))->val)); +} + +static inline u_int64_t +EXTRACT_64BITS(const void *p) +{ + return ((u_int64_t)(((u_int64_t)ntohl(((const unaligned_u_int32_t *)(p) + 0)->val)) << 32 | \ + ((u_int64_t)ntohl(((const unaligned_u_int32_t *)(p) + 1)->val)) << 0)); + +} #else /* HAVE___ATTRIBUTE__ */ /* @@ -88,13 +100,26 @@ typedef struct { * The processor natively handles unaligned loads, so we can just * cast the pointer and fetch through it. */ -#define EXTRACT_16BITS(p) \ - ((u_int16_t)ntohs(*(const u_int16_t *)(p))) -#define EXTRACT_32BITS(p) \ - ((u_int32_t)ntohl(*(const u_int32_t *)(p))) -#define EXTRACT_64BITS(p) \ - ((u_int64_t)(((u_int64_t)ntohl(*((const u_int32_t *)(p) + 0))) << 32 | \ - ((u_int64_t)ntohl(*((const u_int32_t *)(p) + 1))) << 0)) +static inline u_int16_t +EXTRACT_16BITS(const void *p) +{ + return ((u_int16_t)ntohs(*(const u_int16_t *)(p))); +} + +static inline u_int32_t +EXTRACT_32BITS(const void *p) +{ + return ((u_int32_t)ntohl(*(const u_int32_t *)(p))); +} + +static inline u_int64_t +EXTRACT_64BITS(const void *p) +{ + return ((u_int64_t)(((u_int64_t)ntohl(*((const u_int32_t *)(p) + 0))) << 32 | \ + ((u_int64_t)ntohl(*((const u_int32_t *)(p) + 1))) << 0)); + +} + #endif /* LBL_ALIGN */ #define EXTRACT_24BITS(p) \ |
