(gaih_inet): Check for rc == ERANGE, not rc == errno. Use extend_alloca.

diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index dd6e415..e016876 100644 (file)
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -677,13 +677,11 @@ gaih_inet (const char *name, const struct gaih_service *service,
            int herrno;
            struct hostent th;
            size_t tmpbuflen = 512;
-           char *tmpbuf;
+           char *tmpbuf = NULL;
 
            do
              {
-               tmpbuflen *= 2;
-               tmpbuf = __alloca (tmpbuflen);
-
+               tmpbuf = extend_alloca (tmpbuf, tmpbuflen, tmpbuflen * 2);
                rc = __gethostbyaddr_r (at2->addr,
                                        ((at2->family == AF_INET6)
                                         ? sizeof(struct in6_addr)
@@ -692,7 +690,7 @@ gaih_inet (const char *name, const struct gaih_service *service,
                                        &h, &herrno);
 
              }
-           while (rc == errno && herrno == NETDB_INTERNAL);
+           while (rc == ERANGE && herrno == NETDB_INTERNAL);
 
            if (rc != 0 && herrno == NETDB_INTERNAL)
              {