Annotation of embedaddon/lighttpd/src/inet_ntop_cache.c, revision 1.1
1.1 ! misho 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: }
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