param: move set_param_opt to lib/param

Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-on: https://gerrit.samba.org/109
Reviewed-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/lib/param/loadparm.c b/lib/param/loadparm.c
index 636c41bd201..63be8c4bc0d 100644
--- a/lib/param/loadparm.c
+++ b/lib/param/loadparm.c
@@ -856,6 +856,63 @@ static struct loadparm_service *getservicebyname(struct loadparm_context *lp_ctx
 }
 
 /**
+ * Add a parametric option to a parmlist_entry,
+ * replacing old value, if already present.
+ */
+void set_param_opt(TALLOC_CTX *mem_ctx,
+		   struct parmlist_entry **opt_list,
+		   const char *opt_name,
+		   const char *opt_value,
+		   unsigned priority)
+{
+	struct parmlist_entry *new_opt, *opt;
+	bool not_added;
+
+	opt = *opt_list;
+	not_added = true;
+
+	/* Traverse destination */
+	while (opt) {
+		/* If we already have same option, override it */
+		if (strwicmp(opt->key, opt_name) == 0) {
+			if ((opt->priority & FLAG_CMDLINE) &&
+			    !(priority & FLAG_CMDLINE)) {
+				/* it's been marked as not to be
+				   overridden */
+				return;
+			}
+			TALLOC_FREE(opt->value);
+			TALLOC_FREE(opt->list);
+			opt->value = talloc_strdup(opt, opt_value);
+			opt->priority = priority;
+			not_added = false;
+			break;
+		}
+		opt = opt->next;
+	}
+	if (not_added) {
+		new_opt = talloc(mem_ctx, struct parmlist_entry);
+		if (new_opt == NULL) {
+			smb_panic("OOM");
+		}
+
+		new_opt->key = talloc_strdup(new_opt, opt_name);
+		if (new_opt->key == NULL) {
+			smb_panic("talloc_strdup failed");
+		}
+
+		new_opt->value = talloc_strdup(new_opt, opt_value);
+		if (new_opt->value == NULL) {
+			smb_panic("talloc_strdup failed");
+		}
+
+		new_opt->list = NULL;
+		new_opt->priority = priority;
+		DLIST_ADD(*opt_list, new_opt);
+	}
+}
+
+/**
  * Copy a service structure to another.
  * If pcopymapDest is NULL then copy all fields
  */