- (djm) Guard free_pam_environment against NULL argument. Works around

   HP/UX PAM problems debugged by dtucker

diff --git a/ChangeLog b/ChangeLog
index 4b780ba81c4d349fff709f183a30f5d7aeb87cca..d9cab27ee80d7ac4a21b4c0b0af10ee4e8b4dce2 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -16,6 +16,8 @@
      Jean-Charles Longuet (jclonguet at free.fr); portable #207 ok markus@
  - (djm) Add warning for UsePAM when built without PAM support
  - (djm) A few type mismatch fixes from Bug #565
+ - (djm) Guard free_pam_environment against NULL argument. Works around
+   HP/UX PAM problems debugged by dtucker
 
 20030515
  - (djm) OpenBSD CVS Sync

diff --git a/auth-pam.c b/auth-pam.c
index 34326c242ee4ea0017f36e8a463d1db60e74b931..dc4116175d8c1a248fa28e25b007c6ecf6ebbd98 100644 (file)
--- a/auth-pam.c
+++ b/auth-pam.c
@@ -648,6 +648,9 @@ free_pam_environment(char **env)
 {
        char **envp;
 
+       if (env == NULL)
+               return;
+
        for (envp = env; *envp; envp++)
                xfree(*envp);
        xfree(env);