From e53f6eb20d90fd96e43dc2f52249856485522a61 Mon Sep 17 00:00:00 2001
From: John Denker <jsd@av8n.com>
Date: Sat, 14 Jul 2012 16:19:44 -0700
Subject: From login-name, strip suffixes starting with '@' or'%'

---
 checkpasswd/checkpassword.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/checkpasswd/checkpassword.c b/checkpasswd/checkpassword.c
index 0ca5eee..106889b 100644
--- a/checkpasswd/checkpassword.c
+++ b/checkpasswd/checkpassword.c
@@ -35,6 +35,7 @@ main(int argc,char **argv)
   char *stored;
   int r;
   int i;
+  char ch;
  
   int unit = 3;
   char* unit_str = getenv("CHECKPASSWORD_UNIT");
@@ -62,6 +63,18 @@ main(int argc,char **argv)
   if (i >= uplen) _exit(2);
   while (up[i++]) if (i >= uplen) _exit(2);
 
+#ifndef KEEP_SUFFIXES
+// remove from the login any suffix starting with '@' or '%'
+  for (i=0; ; i++){
+    ch = login[i];
+    if (ch == 0) break;
+    if (ch == '@' || ch == '%') {
+      login[i] = 0;
+      break;
+    }
+  }
+#endif
+
 #ifdef NASTY_DEBUG
   fprintf(stderr, "checkpassw called with '%s' '%s'\n",
         login, password);
-- 
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