LocalIP (BSD): fix build

CarterLi · CarterLi · commit 39da11de8edf · 2024-04-04T19:42:33.000+08:00
diff --git a/src/detection/localip/localip_linux.c b/src/detection/localip/localip_linux.c
@@ -111,8 +111,9 @@ const char* ffDetectLocalIps(const FFLocalIpOptions* options, FFlist* results)
             {
                 struct sockaddr_in6* netmask = (struct sockaddr_in6*) ifa->ifa_netmask;
                 int cidr = 0;
-                for (uint32_t i = 0; i < sizeof(netmask->sin6_addr.s6_addr32) / sizeof(netmask->sin6_addr.s6_addr32[0]); ++i)
-                    cidr += __builtin_popcount(netmask->sin6_addr.s6_addr32[i]);
+                static_assert(sizeof(netmask->sin6_addr) % sizeof(uint64_t) == 0, "");
+                for (uint32_t i = 0; i < sizeof(netmask->sin6_addr) / sizeof(uint64_t); ++i)
+                    cidr += __builtin_popcountll(((uint64_t*) &netmask->sin6_addr)[i]);
                 if (cidr != 0)
                 {
                     size_t len = strlen(addressBuffer);

Original file line number	Diff line number	Diff line change
`@@ -111,8 +111,9 @@ const char* ffDetectLocalIps(const FFLocalIpOptions* options, FFlist* results)`
`111`	`111`	`{`
`112`	`112`	`struct sockaddr_in6* netmask = (struct sockaddr_in6*) ifa->ifa_netmask;`
`113`	`113`	`int cidr = 0;`
`114`		`- for (uint32_t i = 0; i < sizeof(netmask->sin6_addr.s6_addr32) / sizeof(netmask->sin6_addr.s6_addr32[0]); ++i)`
`115`		`- cidr += __builtin_popcount(netmask->sin6_addr.s6_addr32[i]);`
	`114`	`+ static_assert(sizeof(netmask->sin6_addr) % sizeof(uint64_t) == 0, "");`
	`115`	`+ for (uint32_t i = 0; i < sizeof(netmask->sin6_addr) / sizeof(uint64_t); ++i)`
	`116`	`+ cidr += __builtin_popcountll(((uint64_t*) &netmask->sin6_addr)[i]);`
`116`	`117`	`if (cidr != 0)`
`117`	`118`	`{`
`118`	`119`	`size_t len = strlen(addressBuffer);`