From 43e8c7b44d6c26271a30a19adc2c987a03b7d2d0 Mon Sep 17 00:00:00 2001
From: William Pitcock <nenolod@dereferenced.org>
Date: Wed, 9 May 2018 16:35:21 -0500
Subject: [PATCH] libpkgconf: path: add path list copying function

---
 libpkgconf/libpkgconf.h |  1 +
 libpkgconf/path.c       | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/libpkgconf/libpkgconf.h b/libpkgconf/libpkgconf.h
index 80f87ce..f53f54a 100644
--- a/libpkgconf/libpkgconf.h
+++ b/libpkgconf/libpkgconf.h
@@ -338,6 +338,7 @@ PKGCONF_API size_t pkgconf_path_build_from_environ(const char *envvarname, const
 PKGCONF_API bool pkgconf_path_match_list(const char *path, const pkgconf_list_t *dirlist);
 PKGCONF_API void pkgconf_path_free(pkgconf_list_t *dirlist);
 PKGCONF_API bool pkgconf_path_relocate(char *buf, size_t buflen);
+PKGCONF_API void pkgconf_path_copy_list(pkgconf_list_t *dst, const pkgconf_list_t *src);
 
 #ifdef __cplusplus
 }
diff --git a/libpkgconf/path.c b/libpkgconf/path.c
index 2f4cfbb..02d1c97 100644
--- a/libpkgconf/path.c
+++ b/libpkgconf/path.c
@@ -222,6 +222,38 @@ pkgconf_path_match_list(const char *path, const pkgconf_list_t *dirlist)
 	return false;
 }
 
+/*
+ * !doc
+ *
+ * .. c:function:: void pkgconf_path_copy_list(pkgconf_list_t *dst, const pkgconf_list_t *src)
+ *
+ *    Copies a path list to another path list.
+ *
+ *    :param pkgconf_list_t* dst: The path list to copy to.
+ *    :param pkgconf_list_t* src: The path list to copy from.
+ *    :return: nothing
+ */
+void
+pkgconf_path_copy_list(pkgconf_list_t *dst, const pkgconf_list_t *src)
+{
+	pkgconf_node_t *n;
+
+	PKGCONF_FOREACH_LIST_ENTRY(src->head, n)
+	{
+		pkgconf_path_t *srcpath = n->data, *path;
+
+		path = calloc(sizeof(pkgconf_path_t), 1);
+		path->path = strdup(srcpath->path);
+
+#ifdef PKGCONF_CACHE_INODES
+		path->handle_path = srcpath->handle_path;
+		path->handle_device = srcpath->handle_device;
+#endif
+
+		pkgconf_node_insert_tail(&path->lnode, path, dst);
+	}
+}
+
 /*
  * !doc
  *