embedaddon/iftop/ns_hash.c - diff

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Diff for /embedaddon/iftop/ns_hash.c between versions 1.1 and 1.1.1.2

version 1.1, 2012/02/21 16:57:34	version 1.1.1.2, 2016/10/18 14:04:50
Line 2	Line 2

#include <stdio.h>	#include <stdio.h>
#include <stdlib.h>	#include <stdlib.h>
	#include <string.h>
#include <sys/types.h>	#include <sys/types.h>
#include <sys/socket.h>	#include <sys/socket.h>
#include <netinet/in_systm.h>	#include <netinet/in_systm.h>
Line 14	Line 15
#define hash_table_size 256	#define hash_table_size 256

int ns_hash_compare(void* a, void* b) {	int ns_hash_compare(void* a, void* b) {
struct in_addr* aa = (struct in_addr*)a;	struct in6_addr* aa = (struct in6_addr*)a;
struct in_addr* bb = (struct in_addr*)b;	struct in6_addr* bb = (struct in6_addr*)b;
return (aa->s_addr == bb->s_addr);	return IN6_ARE_ADDR_EQUAL(aa, bb);
}	}

	static int __inline__ hash_uint32(uint32_t n) {
	return ((n & 0x000000FF)
	+ ((n & 0x0000FF00) >> 8)
	+ ((n & 0x00FF0000) >> 16)
	+ ((n & 0xFF000000) >> 24));
	}

int ns_hash_hash(void* key) {	int ns_hash_hash(void* key) {
int hash;	int hash;
long addr;	uint32_t* addr6 = (uint32_t)((struct in6_addr ) key)->s6_addr;

addr = (long)((struct in_addr*)key)->s_addr;

hash = ((addr & 0x000000FF)	hash = ( hash_uint32(addr6[0])
+ (addr & 0x0000FF00 >> 8)	+ hash_uint32(addr6[1])
+ (addr & 0x00FF0000 >> 16)	+ hash_uint32(addr6[2])
+ (addr & 0xFF000000 >> 24)) % 0xFF;	+ hash_uint32(addr6[3])) % 0xFF;

return hash;	return hash;
}	}

void* ns_hash_copy_key(void* orig) {	void* ns_hash_copy_key(void* orig) {
struct in_addr* copy;	struct in6_addr* copy;

copy = xmalloc(sizeof *copy);	copy = xmalloc(sizeof *copy);
copy = (struct in_addr*)orig;	memcpy(copy, orig, sizeof *copy);

return copy;	return copy;
}	}

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Removed from v.1.1
changed lines
	Added in v.1.1.1.2