shadow/useradd-script.patch

---
 etc/login.defs |    7 +++++++
 lib/getdef.c   |    1 +
 src/useradd.c  |   41 ++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 48 insertions(+), 1 deletion(-)

--- etc/login.defs
+++ etc/login.defs	2020-10-30 12:54:38.117849829 +0000
@@ -242,6 +242,13 @@ CHFN_RESTRICT		rwh
 DEFAULT_HOME	yes
 
 #
+# If defined, this command is run when adding a user.
+# It should rebuild any NIS database etc. to add the
+# new created account.
+#
+USERADD_CMD             /usr/sbin/useradd.local
+
+#
 # If defined, this command is run when removing a user.
 # It should remove any at/cron/print jobs etc. owned by
 # the user to be removed (passed as the first argument).
--- lib/getdef.c
+++ lib/getdef.c	2020-10-30 12:54:38.117849829 +0000
@@ -134,6 +134,7 @@ static struct itemdef def_table[] = {
 	{"UID_MAX", NULL},
 	{"UID_MIN", NULL},
 	{"UMASK", NULL},
+	{"USERADD_CMD", NULL},
 	{"USERDEL_CMD", NULL},
 	{"USERDEL_PRECMD", NULL},
 	{"USERDEL_POSTCMD", NULL},
--- src/useradd.c
+++ src/useradd.c	2020-10-30 13:08:17.378336989 +0000
@@ -2238,6 +2238,44 @@ static void create_mail (void)
 }
 
 /*
+ * call_script - call a script to do some work
+ *
+ *      call_script calls a script for additional changes to the
+ *      account.
+ */
+
+static void call_script (const char *user, const uid_t uid, const gid_t gid, const char *home)
+{
+        const char *cmd;
+        const char *argv[6];
+        char *strgid, *struid;
+        int status;
+
+        cmd = getdef_str ("USERADD_CMD");
+        if (NULL == cmd) {
+                return;
+        }
+        if (asprintf(&struid, "%lu", (long unsigned)uid) < 0) {
+                (void) fprintf (stderr, _("%s: out of memory\n"), Prog);
+                exit(1);
+        }
+        if (asprintf(&strgid, "%lu", (long unsigned)gid) < 0) {
+                (void) fprintf (stderr, _("%s: out of memory\n"), Prog);
+                exit(1);
+        }
+        argv[0] = cmd;
+        argv[1] = user;
+        argv[2] = struid;
+        argv[3] = strgid;
+        argv[4] = home;
+        argv[5] = (char *)0;
+        (void) run_command (cmd, argv, NULL, &status);
+        free(strgid);
+        free(struid);
+}
+
+
+/*
  * main - useradd command
  */
 int main (int argc, char **argv)
@@ -2514,6 +2552,7 @@ int main (int argc, char **argv)
 	nscd_flush_cache ("group");
 	sssd_flush_cache (SSSD_DB_PASSWD | SSSD_DB_GROUP);
 
+	call_script (user_name, user_id, user_gid, user_home);
+
 	return E_SUCCESS;
 }
-