From: Tomas Mraz <tmraz@fedoraproject.org>
Date: Fri, 13 Sep 2013 13:20:01 +0000 (+0200)
Subject: Write to *rounds only if non-NULL.
X-Git-Tag: Linux-PAM-1_1_8~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=45ec020678ffc82f6c2849935907e2d83710a1f2;p=linux-pam

Write to *rounds only if non-NULL.

modules/pam_unix/support.c(_set_ctrl): Write to *rounds only if non-NULL.
---

diff --git a/modules/pam_unix/support.c b/modules/pam_unix/support.c
index d8f4a6f7..9284dbaa 100644
--- a/modules/pam_unix/support.c
+++ b/modules/pam_unix/support.c
@@ -176,7 +176,7 @@ int _set_ctrl(pam_handle_t *pamh, int flags, int *remember, int *rounds,
 	  free (val);
 
 	  /* read number of rounds for crypt algo */
-	  if (on(UNIX_SHA256_PASS, ctrl) || on(UNIX_SHA512_PASS, ctrl)) {
+	  if (rounds && (on(UNIX_SHA256_PASS, ctrl) || on(UNIX_SHA512_PASS, ctrl))) {
 	    val=search_key ("SHA_CRYPT_MAX_ROUNDS", LOGIN_DEFS);
 
 	    if (val) {