src/useradd.c: E_BAD_NAME: Use a different error code for bad login names

Wrappers like adduser(8) want to do their own stuff if the login name is
bad.  For that, they need to be able to differentiate such an error.

Closes: <https://github.com/shadow-maint/shadow/issues/1103>
Suggested-by: Chris Hofstaedtler <zeha@debian.org>
Cc: Marc 'Zugschlus' Haber <mh+githubvisible@zugschlus.de>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/src/useradd.c b/src/useradd.c
index 562ba44fc824af1ffce9ccd3d1a1505a15853556..e271b30e1d233beccf0a1aa8591ffab8ca76b497 100644 (file)
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -201,6 +201,7 @@ static bool home_added = false;
 #define E_SUB_UID_UPDATE 16    /* can't update the subordinate uid file */
 #define E_SUB_GID_UPDATE 18    /* can't update the subordinate gid file */
 #endif                         /* ENABLE_SUBIDS */
+#define E_BAD_NAME     19      /* Bad login name */
 
 #define DGROUP                 "GROUP"
 #define DGROUPS                        "GROUPS"
@@ -1549,7 +1550,7 @@ static void process_flags (int argc, char **argv)
                                      user_name, AUDIT_NO_ID,
                                      SHADOW_AUDIT_FAILURE);
 #endif
-                       exit (E_BAD_ARG);
+                       exit (E_BAD_NAME);
                }
                if (!dflg) {
                        char  *uh;