Further fix for 6449

Thanks to TAKAHASHI Motonobu <monyo@samba.gr.jp> for reporting!
(cherry picked from commit aa03326fe523e9bc85e6db276f94e9d04aaf009d)

diff --git a/source/utils/net_rap.c b/source/utils/net_rap.c
index 573f18db60ec93f7e63be0032098c6e0bacd2a4a..c04b0793cc1a0ca3b451ab6ad098060fc57109be 100644 (file)
--- a/source/utils/net_rap.c
+++ b/source/utils/net_rap.c
@@ -962,7 +962,7 @@ static int rap_group_add(struct net_context *c, int argc, const char **argv)
        /* BB check for length 21 or smaller explicitly ? BB */
        safe_strcpy(grinfo.group_name, argv[0], sizeof(grinfo.group_name)-1);
        grinfo.reserved1 = '\0';
-       grinfo.comment = smb_xstrdup(c->opt_comment);
+       grinfo.comment = smb_xstrdup(c->opt_comment ? c->opt_comment : "");
 
        ret = cli_NetGroupAdd(cli, &grinfo);
        cli_shutdown(cli);