Move copy_unix_token() from locking/locking.c to lib/util.c.

[kai/samba.git] / source3 / lib / util.c

diff --git a/source3/lib/util.c b/source3/lib/util.c
index f1b815878d49e672352396b186aa140e5ee3d801..697f7b143d1b296a54a5be6f928e10a86477a9a6 100644 (file)
--- a/source3/lib/util.c
+++ b/source3/lib/util.c
@@ -2460,3 +2460,33 @@ bool map_open_params_to_ntcreate(const char *smb_base_fname,
        return True;
 
 }
+
+/*************************************************************************
+ Return a talloced copy of a struct security_unix_token. NULL on fail.
+*************************************************************************/
+
+struct security_unix_token *copy_unix_token(TALLOC_CTX *ctx, const struct security_unix_token *tok)
+{
+       struct security_unix_token *cpy;
+
+       cpy = talloc(ctx, struct security_unix_token);
+       if (!cpy) {
+               return NULL;
+       }
+
+       cpy->uid = tok->uid;
+       cpy->gid = tok->gid;
+       cpy->ngroups = tok->ngroups;
+       if (tok->ngroups) {
+               /* Make this a talloc child of cpy. */
+               cpy->groups = (gid_t *)talloc_memdup(
+                       cpy, tok->groups, tok->ngroups * sizeof(gid_t));
+               if (!cpy->groups) {
+                       TALLOC_FREE(cpy);
+                       return NULL;
+               }
+       } else {
+               cpy->groups = NULL;
+       }
+       return cpy;
+}