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net: Add net_hexdump() utility to print network data

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Only usable if network debugging is activated.

Change-Id: Id7d70d88b5ddca772603e5d2c567b8df23cf084e
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
This commit is contained in:
Jukka Rissanen 2016-05-19 12:27:31 +03:00
commit eba768aba0
1 changed files with 34 additions and 0 deletions
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34
net/yaip/net_private.h
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@ -87,6 +87,37 @@ static inline char *net_sprint_ip_addr(struct net_addr *addr)
return NULL; return NULL;
} }
static inline void net_hexdump(const char *str, const uint8_t *packet, size_t length)
{
int n = 0;
if (!length) {
SYS_LOG_DBG("%s zero-length packet", str);
return;
}
while (length--) {
if (n % 16 == 0) {
printf("%s %08X ", str, n);
}
printf("%02X ", *packet++);
n++;
if (n % 8 == 0) {
if (n % 16 == 0) {
printf("\n");
} else {
printf(" ");
}
}
}
if (n % 16) {
printf("\n");
}
}
#else /* NET_DEBUG */ #else /* NET_DEBUG */
static inline char *net_sprint_ll_addr(uint8_t *ll, uint8_t ll_len) static inline char *net_sprint_ll_addr(uint8_t *ll, uint8_t ll_len)
@ -113,4 +144,7 @@ static inline char *net_sprint_ip_addr(struct net_addr *addr)
{ {
return NULL; return NULL;
} }
#define net_hexdump(str, packet, length)
#endif /* NET_DEBUG */ #endif /* NET_DEBUG */