[PATCH v3] resolv/nss_dns/dns-host: Get rid of alloca.

Joe Simmons-Talbott josimmon@redhat.com
Mon Aug 14 14:10:35 GMT 2023


Since the alloca is a small constant size use an array instead.
---
Changes to v2:
  * Move tmp back into lower scope

 resolv/nss_dns/dns-host.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/resolv/nss_dns/dns-host.c b/resolv/nss_dns/dns-host.c
index 1d60c51f5e..160a017d42 100644
--- a/resolv/nss_dns/dns-host.c
+++ b/resolv/nss_dns/dns-host.c
@@ -395,8 +395,8 @@ _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);
+      char tmp[NS_MAXDNAME];
+      const char *cp = __res_context_hostalias (ctx, name, tmp, sizeof (tmp));
       if (cp != NULL)
 	name = cp;
     }
-- 
2.39.2



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