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-rw-r--r--contrib/passwordcheck/passwordcheck.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/contrib/passwordcheck/passwordcheck.c b/contrib/passwordcheck/passwordcheck.c
index b161e0f1460..c3fb5a9c085 100644
--- a/contrib/passwordcheck/passwordcheck.c
+++ b/contrib/passwordcheck/passwordcheck.c
@@ -26,10 +26,14 @@
PG_MODULE_MAGIC;
+/* Saved hook value in case of unload */
+static check_password_hook_type prev_check_password_hook = NULL;
+
/* passwords shorter than this will be rejected */
#define MIN_PWD_LENGTH 8
extern void _PG_init(void);
+extern void _PG_fini(void);
/*
* check_password
@@ -55,6 +59,11 @@ check_password(const char *username,
Datum validuntil_time,
bool validuntil_null)
{
+ if (prev_check_password_hook)
+ prev_check_password_hook(username, shadow_pass,
+ password_type, validuntil_time,
+ validuntil_null);
+
if (password_type != PASSWORD_TYPE_PLAINTEXT)
{
/*
@@ -133,5 +142,16 @@ void
_PG_init(void)
{
/* activate password checks when the module is loaded */
+ prev_check_password_hook = check_password_hook;
check_password_hook = check_password;
}
+
+/*
+ * Module unload function
+ */
+void
+_PG_fini(void)
+{
+ /* uninstall hook */
+ check_password_hook = prev_check_password_hook;
+}