resolv/nss_dns/dns-host: Get rid of alloca.

Since the alloca is a small constant size use an array instead.

Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index 1d60c51f5e0ec1aa146872e3af5a4909a7660f57..c8b77bbc35004789ec1010ba789706f05368e91e 100644 (file)
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -378,6 +378,7 @@ _nss_dns_gethostbyname4_r (const char *name, struct gaih_addrtuple **pat,
                           int *herrnop, int32_t *ttlp)
 {
   enum nss_status status = check_name (name, herrnop);
+  char tmp[NS_MAXDNAME];
   if (status != NSS_STATUS_SUCCESS)
     return status;
   struct resolv_context *ctx = __resolv_context_get ();
@@ -395,8 +396,7 @@ _nss_dns_gethostbyname4_r (const char *name, struct gaih_addrtuple **pat,
    */
   if (strchr (name, '.') == NULL)
     {
-      char *tmp = alloca (NS_MAXDNAME);
-      const char *cp = __res_context_hostalias (ctx, name, tmp, NS_MAXDNAME);
+      const char *cp = __res_context_hostalias (ctx, name, tmp, sizeof (tmp));
       if (cp != NULL)
        name = cp;
     }