Refactor compating IP addresses

[people/ms/libloc.git] / src / loc / private.h

diff --git a/src/loc/private.h b/src/loc/private.h
index 19e0398e5cd16f9e26f46455b011a7704b98cd44..7008fdf09e1f9ce9723dc7c0edea55926dcc7835 100644 (file)
--- a/src/loc/private.h
+++ b/src/loc/private.h
@@ -19,6 +19,7 @@
 
 #ifdef LIBLOC_PRIVATE
 
+#include <netinet/in.h>
 #include <stdbool.h>
 #include <syslog.h>
 
@@ -56,5 +57,25 @@ void loc_log(struct loc_ctx *ctx,
        int priority, const char *file, int line, const char *fn,
        const char *format, ...) __attribute__((format(printf, 6, 7)));
 
+static inline int in6_addr_cmp(const struct in6_addr* a1, const struct in6_addr* a2) {
+       for (unsigned int i = 0; i < 16; i++) {
+               if (a1->s6_addr[i] > a2->s6_addr[i])
+                       return 1;
+
+               else if (a1->s6_addr[i] < a2->s6_addr[i])
+                       return -1;
+       }
+
+       return 0;
+}
+
+static inline int in6_addr_get_bit(const struct in6_addr* address, unsigned int i) {
+       return ((address->s6_addr[i / 8] >> (i % 8)) & 1);
+}
+
+static inline void in6_addr_set_bit(struct in6_addr* address, unsigned int i, unsigned int val) {
+       address->s6_addr[i / 8] ^= (-val ^ address->s6_addr[i / 8]) & (1 << (i % 8));
+}
+
 #endif
 #endif