lighttpd 1.4.x
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52 lines
1.5 KiB
52 lines
1.5 KiB
#include "base.h" |
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#include "inet_ntop_cache.h" |
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#include "sys-socket.h" |
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#include <sys/types.h> |
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#include <string.h> |
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const char * inet_ntop_cache_get_ip(server *srv, sock_addr *addr) { |
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#ifdef HAVE_IPV6 |
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size_t ndx = 0, i; |
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for (i = 0; i < INET_NTOP_CACHE_MAX; i++) { |
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if (srv->inet_ntop_cache[i].ts != 0 && srv->inet_ntop_cache[i].family == addr->plain.sa_family) { |
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if (srv->inet_ntop_cache[i].family == AF_INET6 && |
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0 == memcmp(srv->inet_ntop_cache[i].addr.ipv6.s6_addr, addr->ipv6.sin6_addr.s6_addr, 16)) { |
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/* IPv6 found in cache */ |
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break; |
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} else if (srv->inet_ntop_cache[i].family == AF_INET && |
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srv->inet_ntop_cache[i].addr.ipv4.s_addr == addr->ipv4.sin_addr.s_addr) { |
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/* IPv4 found in cache */ |
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break; |
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} |
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} |
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} |
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if (i == INET_NTOP_CACHE_MAX) { |
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/* not found in cache */ |
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i = ndx; |
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inet_ntop(addr->plain.sa_family, |
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addr->plain.sa_family == AF_INET6 ? |
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(const void *) &(addr->ipv6.sin6_addr) : |
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(const void *) &(addr->ipv4.sin_addr), |
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srv->inet_ntop_cache[i].b2, INET6_ADDRSTRLEN); |
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srv->inet_ntop_cache[i].ts = srv->cur_ts; |
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srv->inet_ntop_cache[i].family = addr->plain.sa_family; |
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if (srv->inet_ntop_cache[i].family == AF_INET) { |
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srv->inet_ntop_cache[i].addr.ipv4.s_addr = addr->ipv4.sin_addr.s_addr; |
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} else if (srv->inet_ntop_cache[i].family == AF_INET6) { |
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memcpy(srv->inet_ntop_cache[i].addr.ipv6.s6_addr, addr->ipv6.sin6_addr.s6_addr, 16); |
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} |
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} |
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return srv->inet_ntop_cache[i].b2; |
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#else |
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UNUSED(srv); |
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return inet_ntoa(addr->ipv4.sin_addr); |
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#endif |
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}
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