From 4d1575173b64b7a95f7cf9626956aebafdbc103f Mon Sep 17 00:00:00 2001
From: wm4 <wm4@nowhere>
Date: Mon, 24 Feb 2014 21:18:53 +0100
Subject: command: make options property return the list of all options

---
 options/m_config.c | 20 ++++++++++++++++++++
 options/m_config.h |  3 +++
 2 files changed, 23 insertions(+)

(limited to 'options')

diff --git a/options/m_config.c b/options/m_config.c
index d2b75389fe..f2cb8ce98f 100644
--- a/options/m_config.c
+++ b/options/m_config.c
@@ -708,6 +708,26 @@ void m_config_print_option_list(const struct m_config *config)
     MP_INFO(config, "\nTotal: %d options\n", count);
 }
 
+char **m_config_list_options(void *ta_parent, const struct m_config *config)
+{
+    char **list = talloc_new(ta_parent);
+    int count = 0;
+    for (int i = 0; i < config->num_opts; i++) {
+        struct m_config_option *co = &config->opts[i];
+        const struct m_option *opt = co->opt;
+        if (opt->type->flags & M_OPT_TYPE_HAS_CHILD)
+            continue;
+        if (co->is_generated)
+            continue;
+        // For use with CONF_TYPE_STRING_LIST, it's important not to set list
+        // as allocation parent.
+        char *s = talloc_strdup(ta_parent, co->name);
+        MP_TARRAY_APPEND(ta_parent, list, count, s);
+    }
+    MP_TARRAY_APPEND(ta_parent, list, count, NULL);
+    return list;
+}
+
 struct m_profile *m_config_get_profile(const struct m_config *config, bstr name)
 {
     for (struct m_profile *p = config->profiles; p; p = p->next) {
diff --git a/options/m_config.h b/options/m_config.h
index 82382aaa27..632ba09e77 100644
--- a/options/m_config.h
+++ b/options/m_config.h
@@ -170,6 +170,9 @@ const char *m_config_get_positional_option(const struct m_config *config, int n)
 // Returns: error code (<0), or number of expected params (0, 1)
 int m_config_option_requires_param(struct m_config *config, bstr name);
 
+// Return all (visible) option names as NULL terminated string list.
+char **m_config_list_options(void *ta_parent, const struct m_config *config);
+
 /*  Print a list of all registered options.
  *  \param config The config object.
  */
-- 
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