--- shadow-4.0.4.1/libmisc/chkname.c.croc	2008-04-23 04:00:05.000000000 +0400
+++ shadow-4.0.4.1/libmisc/chkname.c	2010-04-19 18:52:20.000000000 +0400
@@ -18,13 +18,14 @@ RCSID ("$Id: chkname.c,v 1.8 2003/05/12
 static int good_name (const char *name)
 {
 	/*
-	 * User/group names must match [a-z_][a-z0-9_-]*
+	 * User/group names must match [A-Za-z_][A-Za-z0-9_-]*
 	 */
-	if (!*name || !((*name >= 'a' && *name <= 'z') || *name == '_'))
+	if (!*name || !((*name >= 'a' && *name <= 'z') || (*name >= 'A' && *name <= 'Z') || *name == '_'))
 		return 0;
 
 	while (*++name) {
 		if (!((*name >= 'a' && *name <= 'z') ||
+		      (*name >= 'A' && *name <= 'Z') ||
 		      (*name >= '0' && *name <= '9') ||
 		      *name == '_' || *name == '-' ||
 		      (*name == '$' && *(name + 1) == '\0')))