diff options
Diffstat (limited to 'src/nss-resolve')
| -rw-r--r-- | src/nss-resolve/nss-resolve.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/src/nss-resolve/nss-resolve.c b/src/nss-resolve/nss-resolve.c index d46a3afe91..d155625e11 100644 --- a/src/nss-resolve/nss-resolve.c +++ b/src/nss-resolve/nss-resolve.c @@ -110,6 +110,20 @@ static int count_addresses(sd_bus_message *m, int af, const char **canonical) { return c; } +static uint32_t ifindex_to_scopeid(int family, const void *a, int ifindex) { + struct in6_addr in6; + + if (family != AF_INET6) + return 0; + + /* Some apps can't deal with the scope ID attached to non-link-local addresses. Hence, let's suppress that. */ + + assert(sizeof(in6) == FAMILY_ADDRESS_SIZE(AF_INET6)); + memcpy(&in6, a, sizeof(struct in6_addr)); + + return IN6_IS_ADDR_LINKLOCAL(&in6) ? ifindex : 0; +} + enum nss_status _nss_resolve_gethostbyname4_r( const char *name, struct gaih_addrtuple **pat, @@ -192,8 +206,8 @@ enum nss_status _nss_resolve_gethostbyname4_r( l = strlen(canonical); ms = ALIGN(l+1) + ALIGN(sizeof(struct gaih_addrtuple)) * c; if (buflen < ms) { - *errnop = ENOMEM; - *h_errnop = TRY_AGAIN; + *errnop = ERANGE; + *h_errnop = NETDB_INTERNAL; return NSS_STATUS_TRYAGAIN; } @@ -245,7 +259,7 @@ enum nss_status _nss_resolve_gethostbyname4_r( r_tuple->next = i == c-1 ? NULL : (struct gaih_addrtuple*) ((char*) r_tuple + ALIGN(sizeof(struct gaih_addrtuple))); r_tuple->name = r_name; r_tuple->family = family; - r_tuple->scopeid = ifindex; + r_tuple->scopeid = ifindex_to_scopeid(family, a, ifindex); memcpy(r_tuple->addr, a, sz); idx += ALIGN(sizeof(struct gaih_addrtuple)); @@ -380,8 +394,8 @@ enum nss_status _nss_resolve_gethostbyname3_r( ms = ALIGN(l+1) + c * ALIGN(alen) + (c+2) * sizeof(char*); if (buflen < ms) { - *errnop = ENOMEM; - *h_errnop = TRY_AGAIN; + *errnop = ERANGE; + *h_errnop = NETDB_INTERNAL; return NSS_STATUS_TRYAGAIN; } @@ -601,8 +615,8 @@ enum nss_status _nss_resolve_gethostbyaddr2_r( c * sizeof(char*); /* pointers to aliases, plus trailing NULL */ if (buflen < ms) { - *errnop = ENOMEM; - *h_errnop = TRY_AGAIN; + *errnop = ERANGE; + *h_errnop = NETDB_INTERNAL; return NSS_STATUS_TRYAGAIN; } |