From 150579f3752b5e806de8dec89f79d07a80ca31da Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Mon, 19 Apr 2021 22:47:20 +0200
Subject: [PATCH] cliparser doesnt liek empty strings,  should be NULL instead

---
 client/src/cmddata.c     | 5 +++--
 client/src/cmdlfem4x05.c | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/client/src/cmddata.c b/client/src/cmddata.c
index ad67126be..1e96e92d6 100644
--- a/client/src/cmddata.c
+++ b/client/src/cmddata.c
@@ -1800,11 +1800,12 @@ static int CmdSamples(const char *Cmd) {
     CLIParserInit(&ctx, "data samples",
                   "Get raw samples for graph window (GraphBuffer) from device.\n"
                   "If 0, then get whole big buffer from device.",
-                  "data samples"
+                  "data samples\n"
+                  "data samples -n 10000"
                  );
     void *argtable[] = {
         arg_param_begin,
-        arg_int0("n", "", "<dec>", "num of samples (512 - 40000)"),
+        arg_int0("n", NULL, "<dec>", "num of samples (512 - 40000)"),
         arg_lit0("v", "verbose", "verbose"),
         arg_param_end
     };
diff --git a/client/src/cmdlfem4x05.c b/client/src/cmdlfem4x05.c
index 99ce8a9bf..82acb5bb6 100644
--- a/client/src/cmdlfem4x05.c
+++ b/client/src/cmdlfem4x05.c
@@ -1428,7 +1428,7 @@ int CmdEM4x05Brute(const char *Cmd) {
     void *argtable[] = {
         arg_param_begin,
         arg_u64_0("s", "start", "<pwd>", "Start bruteforce enumeration from this password value"),
-        arg_int0("n", "", "<digits>", "Stop after having found n candidates. Default: 0 => infinite"),
+        arg_int0("n", NULL, "<digits>", "Stop after having found n candidates. Default: 0 => infinite"),
         arg_param_end
     };
     CLIExecWithReturn(ctx, Cmd, argtable, true);