diff options
Diffstat (limited to 'nscd/aicache.c')
| -rw-r--r-- | nscd/aicache.c | 37 |
1 files changed, 19 insertions, 18 deletions
diff --git a/nscd/aicache.c b/nscd/aicache.c index 918efc9f39..7ae5a1645c 100644 --- a/nscd/aicache.c +++ b/nscd/aicache.c @@ -114,7 +114,6 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, char *tmpbuf6 = alloca (tmpbuf6len); size_t tmpbuf4len = 0; char *tmpbuf4 = NULL; - char *canon = NULL; int32_t ttl = INT32_MAX; ssize_t total = 0; char *key_copy = NULL; @@ -126,6 +125,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, int status[2] = { NSS_STATUS_UNAVAIL, NSS_STATUS_UNAVAIL }; int naddrs = 0; size_t addrslen = 0; + char *canon = NULL; size_t canonlen; nss_gethostbyname4_r fct4 = __nss_lookup_function (nip, @@ -136,9 +136,11 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, while (1) { rc6 = 0; - status[0] = DL_CALL_FCT (fct4, (key, &at, tmpbuf6, tmpbuf6len, + herrno = 0; + status[1] = DL_CALL_FCT (fct4, (key, &at, tmpbuf6, tmpbuf6len, &rc6, &herrno, &ttl)); - if (rc6 != ERANGE || herrno != NETDB_INTERNAL) + if (rc6 != ERANGE || (herrno != NETDB_INTERNAL + && herrno != TRY_AGAIN)) break; tmpbuf6 = extend_alloca (tmpbuf6, tmpbuf6len, 2 * tmpbuf6len); } @@ -146,22 +148,21 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, if (rc6 != 0 && herrno == NETDB_INTERNAL) goto out; - if (status[0] != NSS_STATUS_SUCCESS) + if (status[1] != NSS_STATUS_SUCCESS) goto next_nip; /* We found the data. Count the addresses and the size. */ - for (struct gaih_addrtuple *at2 = at; at2 != NULL; at2 = at2->next) + for (const struct gaih_addrtuple *at2 = at; at2 != NULL; + at2 = at2->next) { ++naddrs; - /* We handle unknown types here the best we can: assume - the maximum size for the address. */ + /* We do not handle anything other than IPv4 and IPv6 + addresses. The getaddrinfo implementation does not + either so it is not worth trying to do more. */ if (at2->family == AF_INET) addrslen += INADDRSZ; - else if (at2->family == AF_INET6 - && IN6ADDRSZ != sizeof (at2->addr)) + else if (at2->family == AF_INET6) addrslen += IN6ADDRSZ; - else - addrslen += sizeof (at2->addr); } canon = at->name; canonlen = strlen (canon) + 1; @@ -191,19 +192,17 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, } /* Fill in the address and address families. */ - char *addrs = (char *) (&dataset->resp + 1); + char *addrs = dataset->strdata; uint8_t *family = (uint8_t *) (addrs + addrslen); - for (struct gaih_addrtuple *at2 = at; at2 != NULL; at2 = at2->next) + for (const struct gaih_addrtuple *at2 = at; at2 != NULL; + at2 = at2->next) { *family++ = at2->family; if (at2->family == AF_INET) addrs = mempcpy (addrs, at2->addr, INADDRSZ); - else if (at2->family == AF_INET6 - && IN6ADDRSZ != sizeof (at2->addr)) + else if (at2->family == AF_INET6) addrs = mempcpy (addrs, at2->addr, IN6ADDRSZ); - else - addrs = mempcpy (addrs, at2->addr, sizeof (at2->addr)); } cp = family; @@ -373,7 +372,7 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, } /* Fill in the address and address families. */ - char *addrs = (char *) (&dataset->resp + 1); + char *addrs = dataset->strdata; uint8_t *family = (uint8_t *) (addrs + addrslen); for (int j = 0; j < 2; ++j) @@ -411,6 +410,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req, key_copy = memcpy (cp, key, req->key_len); + assert (cp == (char *) dataset + total); + /* Now we can determine whether on refill we have to create a new record or not. */ if (he != NULL) |