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1.4.33

    1: #include "base.h"
    2: #include "inet_ntop_cache.h"
    3: #include "sys-socket.h"
    4: 
    5: #include <sys/types.h>
    6: 
    7: #include <string.h>
    8: 
    9: const char * inet_ntop_cache_get_ip(server *srv, sock_addr *addr) {
   10: #ifdef HAVE_IPV6
   11: 	size_t ndx = 0, i;
   12: 	for (i = 0; i < INET_NTOP_CACHE_MAX; i++) {
   13: 		if (srv->inet_ntop_cache[i].ts != 0 && srv->inet_ntop_cache[i].family == addr->plain.sa_family) {
   14: 			if (srv->inet_ntop_cache[i].family == AF_INET6 &&
   15: 			    0 == memcmp(srv->inet_ntop_cache[i].addr.ipv6.s6_addr, addr->ipv6.sin6_addr.s6_addr, 16)) {
   16: 				/* IPv6 found in cache */
   17: 				break;
   18: 			} else if (srv->inet_ntop_cache[i].family == AF_INET &&
   19: 				   srv->inet_ntop_cache[i].addr.ipv4.s_addr == addr->ipv4.sin_addr.s_addr) {
   20: 				/* IPv4 found in cache */
   21: 				break;
   22: 
   23: 			}
   24: 		}
   25: 	}
   26: 
   27: 	if (i == INET_NTOP_CACHE_MAX) {
   28: 		/* not found in cache */
   29: 
   30: 		i = ndx;
   31: 		inet_ntop(addr->plain.sa_family,
   32: 			  addr->plain.sa_family == AF_INET6 ?
   33: 			  (const void *) &(addr->ipv6.sin6_addr) :
   34: 			  (const void *) &(addr->ipv4.sin_addr),
   35: 			  srv->inet_ntop_cache[i].b2, INET6_ADDRSTRLEN);
   36: 
   37: 		srv->inet_ntop_cache[i].ts = srv->cur_ts;
   38: 		srv->inet_ntop_cache[i].family = addr->plain.sa_family;
   39: 
   40: 		if (srv->inet_ntop_cache[i].family == AF_INET) {
   41: 			srv->inet_ntop_cache[i].addr.ipv4.s_addr = addr->ipv4.sin_addr.s_addr;
   42: 		} else if (srv->inet_ntop_cache[i].family == AF_INET6) {
   43: 			memcpy(srv->inet_ntop_cache[i].addr.ipv6.s6_addr, addr->ipv6.sin6_addr.s6_addr, 16);
   44: 		}
   45: 	}
   46: 
   47: 	return srv->inet_ntop_cache[i].b2;
   48: #else
   49: 	UNUSED(srv);
   50: 	return inet_ntoa(addr->ipv4.sin_addr);
   51: #endif
   52: }