document some useradd/groupadd caveats
Mike Frysinger <[email protected]> Mon, 22 Aug 2005 20:40:36 -0400
| Newsgroups | gmane.linux.pld.shadow.general |
|---|---|
| Organization | wh0rd.org |
| Message-ID | <[email protected]> |
find attached a patch which documents the limitations shadow places on user and group names -mike
user-group-add-caveats.patch
(text/x-diff, 2.1 KB)
Index: libmisc/chkname.c
===================================================================
RCS file: /cvsroot/shadow/libmisc/chkname.c,v
retrieving revision 1.8
diff -u -p -r1.8 chkname.c
--- libmisc/chkname.c 12 May 2003 05:29:14 -0000 1.8
+++ libmisc/chkname.c 23 Aug 2005 00:39:16 -0000
@@ -18,7 +18,7 @@ RCSID ("$Id: chkname.c,v 1.8 2003/05/12
static int good_name (const char *name)
{
/*
- * User/group names must match [a-z_][a-z0-9_-]*
+ * User/group names must match [a-z_][a-z0-9_-$]*
*/
if (!*name || !((*name >= 'a' && *name <= 'z') || *name == '_'))
return 0;
Index: man/useradd.8.xml
===================================================================
RCS file: /cvsroot/shadow/man/useradd.8.xml,v
retrieving revision 1.14
diff -u -p -r1.14 useradd.8.xml
--- man/useradd.8.xml 10 Aug 2005 07:43:51 -0000 1.14
+++ man/useradd.8.xml 23 Aug 2005 00:39:16 -0000
@@ -329,6 +329,10 @@
<para>You may not add a user to a NIS group. This must be performed on
the NIS server.
</para>
+ <para>Usernames must begin with a lower case letter or an underscore, and
+ only lower case letters, underscores, dashes, and dollar signs may
+ follow. In regular expression terms: [a-z_][a-z0-9_-$]*
+ </para>
</refsect1>
<refsect1 id='files'>
Index: man/groupadd.8.xml
===================================================================
RCS file: /cvsroot/shadow/man/groupadd.8.xml,v
retrieving revision 1.11
diff -u -p -r1.11 groupadd.8.xml
--- man/groupadd.8.xml 7 Jul 2005 19:25:36 -0000 1.11
+++ man/groupadd.8.xml 23 Aug 2005 00:39:16 -0000
@@ -99,6 +99,15 @@
</variablelist>
</refsect1>
+ <refsect1 id='caveats'>
+ <title>CAVEATS</title>
+ <para>Groupnames must begin with a lower case letter or an underscore, and
+ only lower case letters, underscores, dashes, and dollar signs may
+ follow. In regular expression terms: [a-z_][a-z0-9_-$]*
+ </para>
+ <para>Groupnames may only be up to 16 characters long</para>
+ </refsect1>
+
<refsect1 id='files'>
<title>FILES</title>
<variablelist>