X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-common%2Faddress.c;h=c8ddf7fd72975e88b5d75130e9a2a477fb0eddf1;hb=aa157bc129efe89e13972c40a283df9a3ca46480;hp=8c4dd38f3a1c331a8e81ca685c790cff8157e314;hpb=907bf2598220828a50b22cc00395524bb74feb8e;p=catta diff --git a/avahi-common/address.c b/avahi-common/address.c index 8c4dd38..c8ddf7f 100644 --- a/avahi-common/address.c +++ b/avahi-common/address.c @@ -24,15 +24,17 @@ #endif #include +#include #include #include #include #include +#include #include "address.h" #include "malloc.h" -size_t avahi_address_get_size(const AvahiAddress *a) { +static size_t address_get_size(const AvahiAddress *a) { assert(a); if (a->proto == AVAHI_PROTO_INET) @@ -50,7 +52,7 @@ int avahi_address_cmp(const AvahiAddress *a, const AvahiAddress *b) { if (a->proto != b->proto) return -1; - return memcmp(a->data.data, b->data.data, avahi_address_get_size(a)); + return memcmp(a->data.data, b->data.data, address_get_size(a)); } char *avahi_address_snprint(char *s, size_t length, const AvahiAddress *a) { @@ -58,60 +60,48 @@ char *avahi_address_snprint(char *s, size_t length, const AvahiAddress *a) { assert(length); assert(a); - return (char*) inet_ntop(avahi_proto_to_af(a->proto), a->data.data, s, length); + if (!(inet_ntop(avahi_proto_to_af(a->proto), a->data.data, s, length))) + return NULL; + + return s; } -char* avahi_reverse_lookup_name_ipv4(const AvahiIPv4Address *a) { - uint32_t n = ntohl(a->address); +char* avahi_reverse_lookup_name(const AvahiAddress *a, char *ret_s, size_t length) { + assert(ret_s); + assert(length > 0); assert(a); - return avahi_strdup_printf("%u.%u.%u.%u.in-addr.arpa", n & 0xFF, (n >> 8) & 0xFF, (n >> 16) & 0xFF, n >> 24); -} - -static char *reverse_lookup_name_ipv6(const AvahiIPv6Address *a, const char *suffix) { - - return avahi_strdup_printf("%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%s", - a->address[15] & 0xF, - a->address[15] >> 4, - a->address[14] & 0xF, - a->address[14] >> 4, - a->address[13] & 0xF, - a->address[13] >> 4, - a->address[12] & 0xF, - a->address[12] >> 4, - a->address[11] & 0xF, - a->address[11] >> 4, - a->address[10] & 0xF, - a->address[10] >> 4, - a->address[9] & 0xF, - a->address[9] >> 4, - a->address[8] & 0xF, - a->address[8] >> 4, - a->address[7] & 0xF, - a->address[7] >> 4, - a->address[6] & 0xF, - a->address[6] >> 4, - a->address[5] & 0xF, - a->address[5] >> 4, - a->address[4] & 0xF, - a->address[4] >> 4, - a->address[3] & 0xF, - a->address[3] >> 4, - a->address[2] & 0xF, - a->address[2] >> 4, - a->address[1] & 0xF, - a->address[1] >> 4, - a->address[0] & 0xF, - a->address[0] >> 4, - suffix); -} - -char *avahi_reverse_lookup_name_ipv6_arpa(const AvahiIPv6Address *a) { - return reverse_lookup_name_ipv6(a, "ip6.arpa"); -} + if (a->proto == AVAHI_PROTO_INET) { + uint32_t n = ntohl(a->data.ipv4.address); + snprintf( + ret_s, length, + "%u.%u.%u.%u.in-addr.arpa", + n & 0xFF, (n >> 8) & 0xFF, (n >> 16) & 0xFF, n >> 24); + } else { + assert(a->proto == AVAHI_PROTO_INET6); + + snprintf( + ret_s, length, + "%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.ip6.arpa", + a->data.ipv6.address[15] & 0xF, a->data.ipv6.address[15] >> 4, + a->data.ipv6.address[14] & 0xF, a->data.ipv6.address[14] >> 4, + a->data.ipv6.address[13] & 0xF, a->data.ipv6.address[13] >> 4, + a->data.ipv6.address[12] & 0xF, a->data.ipv6.address[12] >> 4, + a->data.ipv6.address[11] & 0xF, a->data.ipv6.address[11] >> 4, + a->data.ipv6.address[10] & 0xF, a->data.ipv6.address[10] >> 4, + a->data.ipv6.address[ 9] & 0xF, a->data.ipv6.address[ 9] >> 4, + a->data.ipv6.address[ 8] & 0xF, a->data.ipv6.address[ 8] >> 4, + a->data.ipv6.address[ 7] & 0xF, a->data.ipv6.address[ 7] >> 4, + a->data.ipv6.address[ 6] & 0xF, a->data.ipv6.address[ 6] >> 4, + a->data.ipv6.address[ 5] & 0xF, a->data.ipv6.address[ 5] >> 4, + a->data.ipv6.address[ 4] & 0xF, a->data.ipv6.address[ 4] >> 4, + a->data.ipv6.address[ 3] & 0xF, a->data.ipv6.address[ 3] >> 4, + a->data.ipv6.address[ 2] & 0xF, a->data.ipv6.address[ 2] >> 4, + a->data.ipv6.address[ 1] & 0xF, a->data.ipv6.address[ 1] >> 4, + a->data.ipv6.address[ 0] & 0xF, a->data.ipv6.address[ 0] >> 4); + } -char *avahi_reverse_lookup_name_ipv6_int(const AvahiIPv6Address *a) { - return reverse_lookup_name_ipv6(a, "ip6.int"); + return ret_s; } AvahiAddress *avahi_address_parse(const char *s, AvahiProtocol proto, AvahiAddress *ret_addr) { @@ -136,49 +126,6 @@ AvahiAddress *avahi_address_parse(const char *s, AvahiProtocol proto, AvahiAddre return ret_addr; } -AvahiAddress *avahi_address_from_sockaddr(const struct sockaddr* sa, AvahiAddress *ret_addr) { - assert(sa); - assert(ret_addr); - - assert(sa->sa_family == AF_INET || sa->sa_family == AF_INET6); - - ret_addr->proto = avahi_af_to_proto(sa->sa_family); - - if (sa->sa_family == AF_INET) - memcpy(&ret_addr->data.ipv4, &((const struct sockaddr_in*) sa)->sin_addr, sizeof(ret_addr->data.ipv4)); - else - memcpy(&ret_addr->data.ipv6, &((const struct sockaddr_in6*) sa)->sin6_addr, sizeof(ret_addr->data.ipv6)); - - return ret_addr; -} - -uint16_t avahi_port_from_sockaddr(const struct sockaddr* sa) { - assert(sa); - - assert(sa->sa_family == AF_INET || sa->sa_family == AF_INET6); - - if (sa->sa_family == AF_INET) - return ntohs(((const struct sockaddr_in*) sa)->sin_port); - else - return ntohs(((const struct sockaddr_in6*) sa)->sin6_port); -} - -int avahi_address_is_ipv4_in_ipv6(const AvahiAddress *a) { - - static const uint8_t ipv4_in_ipv6[] = { - 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - 0xFF, 0xFF, 0xFF, 0xFF - }; - - assert(a); - - if (a->proto != AVAHI_PROTO_INET6) - return 0; - - return memcmp(a->data.ipv6.address, ipv4_in_ipv6, sizeof(ipv4_in_ipv6)) == 0; -} - int avahi_proto_to_af(AvahiProtocol proto) { if (proto == AVAHI_PROTO_INET) return AF_INET;