[glibc/siddhesh/gai-cleanup2] gethosts: Return EAI_MEMORY on allocation failure

[Siddhesh Poyarekar <siddhesh@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5cbcab03883ec7421fb59d0c79928e878077802b

commit 5cbcab03883ec7421fb59d0c79928e878077802b
Author: Siddhesh Poyarekar <siddhesh@sourceware.org>
Date:   Wed Mar 2 11:45:29 2022 +0530

    gethosts: Return EAI_MEMORY on allocation failure
    
    All other cases of failures due to lack of memory return EAI_MEMORY, so
    it seems wrong to return EAI_SYSTEM here.  The only reason
    convert_hostent_to_gaih_addrtuple could fail is on calloc failure.
    
    Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

Diff:
---
 sysdeps/posix/getaddrinfo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
index f790921487..f89169dd33 100644
--- a/sysdeps/posix/getaddrinfo.c
+++ b/sysdeps/posix/getaddrinfo.c
@@ -326,7 +326,7 @@ gethosts (nss_gethostbyname3_r fct, const int family, const char *name,
     {
       if (!convert_hostent_to_gaih_addrtuple (req, family, &th, &addrmem))
 	{
-	  result = -EAI_SYSTEM;
+	  result = -EAI_MEMORY;
 	  goto out;
 	}
       if (addrmem && !gaih_lookup_result_push_alloc (res, addrmem))
@@ -339,7 +339,7 @@ gethosts (nss_gethostbyname3_r fct, const int family, const char *name,
 	  char *canonbuf = __strdup (localcanon);
 	  if (canonbuf == NULL)
 	    {
-	      result = -EAI_SYSTEM;
+	      result = -EAI_MEMORY;
 	      goto out;
 	    }
 	  *canonp = canonbuf;