From 28a99b0d3e7d6669bcfa9c6eb6c4d53a6c719c34 Mon Sep 17 00:00:00 2001
From: Miles Bader <miles@gnu.org>
Date: Sat, 22 Jun 1996 21:45:52 +0000
Subject: (diskfs_get_options): New function.

---
 ufs/main.c | 43 ++++++++++++++++++++++++++++++-------------
 1 file changed, 30 insertions(+), 13 deletions(-)

(limited to 'ufs/main.c')

diff --git a/ufs/main.c b/ufs/main.c
index ac3a34bb..617796d8 100644
--- a/ufs/main.c
+++ b/ufs/main.c
@@ -111,23 +111,40 @@ parse_opt (int key, char *arg, struct argp_state *state)
     }
   return 0;
 }
-
-static const struct argp *startup_parents[] = {
-  &diskfs_std_device_startup_argp, 0
-};
-static const struct argp startup_argp = {
-  options, parse_opt, 0, 0, startup_parents
-};
 
-static const struct argp *runtime_parents[] = {
-  &diskfs_std_runtime_argp, 0
-};
-static const struct argp runtime_argp = {
-  options, parse_opt, 0, 0, runtime_parents
-};
+/* Add our startup arguments to the standard diskfs set.  */
+static struct argp *startup_parents[] = { &diskfs_std_device_startup_argp, 0};
+static struct argp startup_argp = {options, parse_opt, 0, 0, startup_parents};
+
+/* Similarly at runtime.  */
+static struct argp *runtime_parents[] = {&diskfs_std_runtime_argp, 0};
+static struct argp runtime_argp = {options, parse_opt, 0, 0, runtime_parents};
 
 struct argp *diskfs_runtime_argp = (struct argp *)&runtime_argp;
 
+/* Override the standard diskfs routine so we can add our own output.  */
+error_t
+diskfs_get_options (char **argz, unsigned *argz_len)
+{
+  error_t err;
+
+  *argz = 0;
+  *argz_len = 0;
+
+  /* Get the standard things.  */
+  err = diskfs_append_std_options (argz, argz_len);
+
+  if (!err && compat_mode != COMPAT_GNU)
+    {
+      char *mode = (compat_mode == COMPAT_BSD42) ? "4.2" : "4.4";
+      err = argz_add (argz, argz_len, mode);
+      if (err)
+	free (argz);		/* Deallocate what diskfs returned.  */
+    }
+
+  return err;
+}
+
 int
 main (int argc, char **argv)
 {
-- 
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