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author | Marcel Holtmann <marcel@holtmann.org> | 2011-02-15 16:14:46 -0800 |
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committer | Marcel Holtmann <marcel@holtmann.org> | 2011-02-15 16:14:46 -0800 |
commit | 33b9f646559724e35f9b7dc661f3732e412c64a0 (patch) | |
tree | a1fe716dea1c2a65917bbd094e25e1a926fb48e0 /gweb | |
parent | 3a5748ea3be8a0c6f6b5defc51a96edba8e0ec50 (diff) | |
download | connman-33b9f646559724e35f9b7dc661f3732e412c64a0.tar.gz connman-33b9f646559724e35f9b7dc661f3732e412c64a0.tar.bz2 connman-33b9f646559724e35f9b7dc661f3732e412c64a0.zip |
gweb: Avoid forward declarations in resolver code
Diffstat (limited to 'gweb')
-rw-r--r-- | gweb/gresolv.c | 679 |
1 files changed, 338 insertions, 341 deletions
diff --git a/gweb/gresolv.c b/gweb/gresolv.c index 15dd0e40..938aa690 100644 --- a/gweb/gresolv.c +++ b/gweb/gresolv.c @@ -112,9 +112,6 @@ struct _GResolv { gpointer debug_data; }; -static void sort_and_return_results(struct resolv_lookup *lookup); -static void rfc3484_sort_results(struct resolv_lookup *lookup); - static inline void debug(GResolv *resolv, const char *format, ...) { char str[256]; @@ -157,6 +154,344 @@ static void destroy_lookup(struct resolv_lookup *lookup) g_free(lookup); } +static void find_srcaddr(struct sort_result *res) +{ + socklen_t sl = sizeof(res->src); + int fd; + + fd = socket(res->dst.sa.sa_family, SOCK_DGRAM, IPPROTO_IP); + if (fd < 0) + return; + + if (connect(fd, &res->dst.sa, sizeof(res->dst)) < 0) { + close(fd); + return; + } + + if (getsockname(fd, &res->src.sa, &sl) < 0) { + close(fd); + return; + } + + res->reachable = TRUE; + close(fd); +} + +struct gai_table +{ + unsigned char addr[NS_IN6ADDRSZ]; + int mask; + int value; +}; + +static const struct gai_table gai_labels[] = { + { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, + .mask = 128, + .value = 0, + }, { + .addr = { 0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 16, + .value = 2, + }, { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 96, + .value = 3, + }, { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }, + .mask = 96, + .value = 4, + }, { + /* Variations from RFC 3484, matching glibc behaviour */ + .addr = { 0xfe, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 10, + .value = 5, + }, { + .addr = { 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 7, + .value = 6, + }, { + .addr = { 0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 32, + .value = 7, + }, { + /* catch-all */ + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 0, + .value = 1, + } +}; + +static const struct gai_table gai_precedences[] = { + { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, + .mask = 128, + .value = 50, + }, { + .addr = { 0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 16, + .value = 30, + }, { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 96, + .value = 20, + }, { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }, + .mask = 96, + .value = 10, + }, { + .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, + .mask = 0, + .value = 40, + } +}; + +static unsigned char v4mapped[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; + +static gboolean mask_compare(const unsigned char *one, + const unsigned char *two, int mask) +{ + if (mask > 8) { + if (memcmp(one, two, mask / 8)) + return FALSE; + one += mask / 8; + two += mask / 8; + mask %= 8; + } + + if (mask && ((*one ^ *two) >> (8 - mask))) + return FALSE; + + return TRUE; +} + +static int match_gai_table(struct sockaddr *sa, const struct gai_table *tbl) +{ + struct sockaddr_in *sin = (void *)sa; + struct sockaddr_in6 *sin6 = (void *)sa; + void *addr; + + if (sa->sa_family == AF_INET) { + addr = v4mapped; + memcpy(v4mapped+12, &sin->sin_addr, NS_INADDRSZ); + } else + addr = &sin6->sin6_addr; + + while (1) { + if (mask_compare(addr, tbl->addr, tbl->mask)) + return tbl->value; + tbl++; + } +} + +#define DQUAD(_a,_b,_c,_d) ( ((_a)<<24) | ((_b)<<16) | ((_c)<<8) | (_d) ) +#define V4MATCH(addr, a,b,c,d, m) ( ((addr) ^ DQUAD(a,b,c,d)) >> (32 - (m)) ) + +#define RFC3484_SCOPE_LINK 2 +#define RFC3484_SCOPE_SITE 5 +#define RFC3484_SCOPE_GLOBAL 14 + +static int addr_scope(struct sockaddr *sa) +{ + if (sa->sa_family == AF_INET) { + struct sockaddr_in *sin = (void *)sa; + guint32 addr = ntohl(sin->sin_addr.s_addr); + + if (V4MATCH(addr, 169,254,0,0, 16) || + V4MATCH(addr, 127,0,0,0, 8)) + return RFC3484_SCOPE_LINK; + + /* Site-local */ + if (V4MATCH(addr, 10,0,0,0, 8) || + V4MATCH(addr, 172,16,0,0, 12) || + V4MATCH(addr, 192,168,0,0, 16)) + return RFC3484_SCOPE_SITE; + + /* Global */ + return RFC3484_SCOPE_GLOBAL; + } else { + struct sockaddr_in6 *sin6 = (void *)sa; + + /* Multicast addresses have a 4-bit scope field */ + if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) + return sin6->sin6_addr.s6_addr[1] & 0xf; + + if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) || + IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr)) + return RFC3484_SCOPE_LINK; + + if (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)) + return RFC3484_SCOPE_SITE; + + return RFC3484_SCOPE_GLOBAL; + } +} + +static int rfc3484_compare(const void *__one, const void *__two) +{ + const struct sort_result *one = __one; + const struct sort_result *two = __two; + + /* Rule 1: Avoid unusable destinations */ + if (one->reachable && !two->reachable) + return -1; + else if (two->reachable && !one->reachable) + return 1; + + /* Rule 2: Prefer matching scope */ + if (one->dst_scope == one->src_scope && + two->dst_scope != two->src_scope) + return -1; + else if (two->dst_scope == two->src_scope && + one->dst_scope != one->src_scope) + return 1; + + /* Rule 3: Avoid deprecated addresses */ + + /* Rule 4: Prefer home addresses */ + + /* Rule 5: Prefer matching label */ + if (one->dst_label == one->src_label && + two->dst_label != two->src_label) + return -1; + else if (two->dst_label == two->src_label && + one->dst_label != one->src_label) + return 1; + + /* Rule 6: Prefer higher precedence */ + if (one->precedence > two->precedence) + return -1; + else if (two->precedence > one->precedence) + return 1; + + /* Rule 7: Prefer native transport */ + + /* Rule 8: Prefer smaller scope */ + if (one->dst_scope != two->dst_scope) + return one->dst_scope - two->dst_scope; + + /* Rule 9: Use longest matching prefix */ + if (one->dst.sa.sa_family == AF_INET) { + /* + * Rule 9 is meaningless and counterproductive for Legacy IP + * unless perhaps we can tell that it's actually on the local + * subnet. But we don't (yet) have local interface config + * information, so do nothing here for Legacy IP for now. + */ + } else { + int i; + + for (i = 0; i < 4; i++) { + guint32 cmp_one, cmp_two; + + cmp_one = one->src.sin6.sin6_addr.s6_addr32[i] ^ + one->dst.sin6.sin6_addr.s6_addr32[i]; + cmp_two = two->src.sin6.sin6_addr.s6_addr32[i] ^ + two->dst.sin6.sin6_addr.s6_addr32[i]; + + if (!cmp_two && !cmp_one) + continue; + + if (cmp_one && !cmp_two) + return 1; + if (cmp_two && !cmp_one) + return -1; + + /* g_bit_storage() is effectively fls() */ + cmp_one = g_bit_storage(ntohl(cmp_one)); + cmp_two = g_bit_storage(ntohl(cmp_two)); + + if (cmp_one == cmp_two) + break; + + return cmp_one - cmp_two; + } + } + + + /* Rule 10: Otherwise, leave the order unchanged */ + if (one < two) + return -1; + else + return 1; +} + +static void rfc3484_sort_results(struct resolv_lookup *lookup) +{ + int i; + + for (i = 0; i < lookup->nr_results; i++) { + struct sort_result *res = &lookup->results[i]; + find_srcaddr(res); + res->precedence = match_gai_table(&res->dst.sa, + gai_precedences); + res->dst_label = match_gai_table(&res->dst.sa, gai_labels); + res->src_label = match_gai_table(&res->src.sa, gai_labels); + res->dst_scope = addr_scope(&res->dst.sa); + res->src_scope = addr_scope(&res->src.sa); + } + + qsort(lookup->results, lookup->nr_results, + sizeof(struct sort_result), rfc3484_compare); +} + +static void sort_and_return_results(struct resolv_lookup *lookup) +{ + char buf[100]; + GResolvResultStatus status; + char **results = g_try_new0(char *, lookup->nr_results + 1); + int i, n = 0; + + if (!results) + return; + + rfc3484_sort_results(lookup); + + for (i = 0; i < lookup->nr_results; i++) { + if (lookup->results[i].dst.sa.sa_family == AF_INET) { + if (inet_ntop(AF_INET, + &lookup->results[i].dst.sin.sin_addr, + buf, sizeof(buf)) == NULL) + continue; + } else if (lookup->results[i].dst.sa.sa_family == AF_INET6) { + if (inet_ntop(AF_INET6, + &lookup->results[i].dst.sin6.sin6_addr, + buf, sizeof(buf)) == NULL) + continue; + } else + continue; + + results[n++] = strdup(buf); + } + + results[n++] = NULL; + + status = lookup->ipv4_status; + + if (status == G_RESOLV_RESULT_STATUS_SUCCESS) + status = lookup->ipv6_status; + + lookup->result_func(status, results, lookup->result_data); + + g_strfreev(results); + g_queue_remove(lookup->resolv->lookup_queue, lookup); + destroy_lookup(lookup); +} + static gboolean query_timeout(gpointer user_data) { struct resolv_query *query = user_data; @@ -559,49 +894,6 @@ void g_resolv_flush_nameservers(GResolv *resolv) flush_nameservers(resolv); } -static void sort_and_return_results(struct resolv_lookup *lookup) -{ - char buf[100]; - GResolvResultStatus status; - char **results = g_try_new0(char *, lookup->nr_results + 1); - int i, n = 0; - - if (!results) - return; - - rfc3484_sort_results(lookup); - - for (i = 0; i < lookup->nr_results; i++) { - if (lookup->results[i].dst.sa.sa_family == AF_INET) { - if (inet_ntop(AF_INET, - &lookup->results[i].dst.sin.sin_addr, - buf, sizeof(buf)) == NULL) - continue; - } else if (lookup->results[i].dst.sa.sa_family == AF_INET6) { - if (inet_ntop(AF_INET6, - &lookup->results[i].dst.sin6.sin6_addr, - buf, sizeof(buf)) == NULL) - continue; - } else - continue; - - results[n++] = strdup(buf); - } - - results[n++] = NULL; - - status = lookup->ipv4_status; - - if (status == G_RESOLV_RESULT_STATUS_SUCCESS) - status = lookup->ipv6_status; - - lookup->result_func(status, results, lookup->result_data); - - g_strfreev(results); - g_queue_remove(lookup->resolv->lookup_queue, lookup); - destroy_lookup(lookup); -} - static gint add_query(struct resolv_lookup *lookup, const char *hostname, int type) { struct resolv_query *query = g_try_new0(struct resolv_query, 1); @@ -709,298 +1001,3 @@ gboolean g_resolv_cancel_lookup(GResolv *resolv, guint id) return TRUE; } - -static void find_srcaddr(struct sort_result *res) -{ - socklen_t sl = sizeof(res->src); - int fd; - - fd = socket(res->dst.sa.sa_family, SOCK_DGRAM, IPPROTO_IP); - if (fd < 0) - return; - - if (connect(fd, &res->dst.sa, sizeof(res->dst)) < 0) { - close(fd); - return; - } - - if (getsockname(fd, &res->src.sa, &sl) < 0) { - close(fd); - return; - } - - res->reachable = TRUE; - close(fd); -} - -struct gai_table -{ - unsigned char addr[NS_IN6ADDRSZ]; - int mask; - int value; -}; - -static const struct gai_table gai_labels[] = { - { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, - .mask = 128, - .value = 0, - }, { - .addr = { 0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 16, - .value = 2, - }, { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 96, - .value = 3, - }, { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }, - .mask = 96, - .value = 4, - }, { - /* Variations from RFC 3484, matching glibc behaviour */ - .addr = { 0xfe, 0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 10, - .value = 5, - }, { - .addr = { 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 7, - .value = 6, - }, { - .addr = { 0x20, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 32, - .value = 7, - }, { - /* catch-all */ - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 0, - .value = 1, - } -}; - -static const struct gai_table gai_precedences[] = { - { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }, - .mask = 128, - .value = 50, - }, { - .addr = { 0x20, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 16, - .value = 30, - }, { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 96, - .value = 20, - }, { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }, - .mask = 96, - .value = 10, - }, { - .addr = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, - .mask = 0, - .value = 40, - } -}; - -static unsigned char v4mapped[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }; - -static gboolean mask_compare(const unsigned char *one, - const unsigned char *two, int mask) -{ - if (mask > 8) { - if (memcmp(one, two, mask / 8)) - return FALSE; - one += mask / 8; - two += mask / 8; - mask %= 8; - } - - if (mask && ((*one ^ *two) >> (8 - mask))) - return FALSE; - - return TRUE; -} - -static int match_gai_table(struct sockaddr *sa, const struct gai_table *tbl) -{ - struct sockaddr_in *sin = (void *)sa; - struct sockaddr_in6 *sin6 = (void *)sa; - void *addr; - - if (sa->sa_family == AF_INET) { - addr = v4mapped; - memcpy(v4mapped+12, &sin->sin_addr, NS_INADDRSZ); - } else - addr = &sin6->sin6_addr; - - while (1) { - if (mask_compare(addr, tbl->addr, tbl->mask)) - return tbl->value; - tbl++; - } -} - -#define DQUAD(_a,_b,_c,_d) ( ((_a)<<24) | ((_b)<<16) | ((_c)<<8) | (_d) ) -#define V4MATCH(addr, a,b,c,d, m) ( ((addr) ^ DQUAD(a,b,c,d)) >> (32 - (m)) ) - -#define RFC3484_SCOPE_LINK 2 -#define RFC3484_SCOPE_SITE 5 -#define RFC3484_SCOPE_GLOBAL 14 - -static int addr_scope(struct sockaddr *sa) -{ - if (sa->sa_family == AF_INET) { - struct sockaddr_in *sin = (void *)sa; - guint32 addr = ntohl(sin->sin_addr.s_addr); - - if (V4MATCH(addr, 169,254,0,0, 16) || - V4MATCH(addr, 127,0,0,0, 8)) - return RFC3484_SCOPE_LINK; - - /* Site-local */ - if (V4MATCH(addr, 10,0,0,0, 8) || - V4MATCH(addr, 172,16,0,0, 12) || - V4MATCH(addr, 192,168,0,0, 16)) - return RFC3484_SCOPE_SITE; - - /* Global */ - return RFC3484_SCOPE_GLOBAL; - } else { - struct sockaddr_in6 *sin6 = (void *)sa; - - /* Multicast addresses have a 4-bit scope field */ - if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr)) - return sin6->sin6_addr.s6_addr[1] & 0xf; - - if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr) || - IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr)) - return RFC3484_SCOPE_LINK; - - if (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr)) - return RFC3484_SCOPE_SITE; - - return RFC3484_SCOPE_GLOBAL; - } -} - -static int rfc3484_compare(const void *__one, const void *__two) -{ - const struct sort_result *one = __one; - const struct sort_result *two = __two; - - /* Rule 1: Avoid unusable destinations */ - if (one->reachable && !two->reachable) - return -1; - else if (two->reachable && !one->reachable) - return 1; - - /* Rule 2: Prefer matching scope */ - if (one->dst_scope == one->src_scope && - two->dst_scope != two->src_scope) - return -1; - else if (two->dst_scope == two->src_scope && - one->dst_scope != one->src_scope) - return 1; - - /* Rule 3: Avoid deprecated addresses */ - - /* Rule 4: Prefer home addresses */ - - /* Rule 5: Prefer matching label */ - if (one->dst_label == one->src_label && - two->dst_label != two->src_label) - return -1; - else if (two->dst_label == two->src_label && - one->dst_label != one->src_label) - return 1; - - /* Rule 6: Prefer higher precedence */ - if (one->precedence > two->precedence) - return -1; - else if (two->precedence > one->precedence) - return 1; - - /* Rule 7: Prefer native transport */ - - /* Rule 8: Prefer smaller scope */ - if (one->dst_scope != two->dst_scope) - return one->dst_scope - two->dst_scope; - - /* Rule 9: Use longest matching prefix */ - if (one->dst.sa.sa_family == AF_INET) { - /* - * Rule 9 is meaningless and counterproductive for Legacy IP - * unless perhaps we can tell that it's actually on the local - * subnet. But we don't (yet) have local interface config - * information, so do nothing here for Legacy IP for now. - */ - } else { - int i; - - for (i = 0; i < 4; i++) { - guint32 cmp_one, cmp_two; - - cmp_one = one->src.sin6.sin6_addr.s6_addr32[i] ^ - one->dst.sin6.sin6_addr.s6_addr32[i]; - cmp_two = two->src.sin6.sin6_addr.s6_addr32[i] ^ - two->dst.sin6.sin6_addr.s6_addr32[i]; - - if (!cmp_two && !cmp_one) - continue; - - if (cmp_one && !cmp_two) - return 1; - if (cmp_two && !cmp_one) - return -1; - - /* g_bit_storage() is effectively fls() */ - cmp_one = g_bit_storage(ntohl(cmp_one)); - cmp_two = g_bit_storage(ntohl(cmp_two)); - - if (cmp_one == cmp_two) - break; - - return cmp_one - cmp_two; - } - } - - - /* Rule 10: Otherwise, leave the order unchanged */ - if (one < two) - return -1; - else - return 1; -} - -static void rfc3484_sort_results(struct resolv_lookup *lookup) -{ - int i; - - for (i = 0; i < lookup->nr_results; i++) { - struct sort_result *res = &lookup->results[i]; - find_srcaddr(res); - res->precedence = match_gai_table(&res->dst.sa, - gai_precedences); - res->dst_label = match_gai_table(&res->dst.sa, gai_labels); - res->src_label = match_gai_table(&res->src.sa, gai_labels); - res->dst_scope = addr_scope(&res->dst.sa); - res->src_scope = addr_scope(&res->src.sa); - } - - qsort(lookup->results, lookup->nr_results, - sizeof(struct sort_result), rfc3484_compare); -} |