src/network/freeaddrinfo.c

   1 #include <stdlib.h>
   2 #include <stddef.h>
   3 #include <netdb.h>
   4 #include "lookup.h"
   5 #include "lock.h"
   6
   7 void freeaddrinfo(struct addrinfo *p)
   8 {
   9         size_t cnt;
  10         for (cnt=1; p->ai_next; cnt++, p=p->ai_next);
  11         struct aibuf *b = (void *)((char *)p - offsetof(struct aibuf, ai));
  12         b -= b->slot;
  13         LOCK(b->lock);
  14         if (!(b->ref -= cnt)) free(b);
  15         else UNLOCK(b->lock);
  16 }