From: merlokk <olegmsn@gmail.com>
Date: Tue, 11 Sep 2018 11:56:33 +0000 (+0300)
Subject: `hf emv select` some refactoring
X-Git-Tag: v3.1.0~9^2~16
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/7d4ba60e8e1b169822ff64a870b9f976585cb97c

`hf emv select` some refactoring
---

diff --git a/client/cliparser/cliparser.c b/client/cliparser/cliparser.c
index 0e70a630..87427db0 100644
--- a/client/cliparser/cliparser.c
+++ b/client/cliparser/cliparser.c
@@ -148,6 +148,10 @@ void CLIParserFree() {
 
 // convertors
 int CLIParamHexToBuf(struct arg_str *argstr, uint8_t *data, int maxdatalen, int *datalen) {
+	*datalen = 0;
+	if (!strlen(argstr->sval[0]))
+		return 0;
+	
 	switch(param_gethex_to_eol(argstr->sval[0], 0, data, maxdatalen, datalen)) {
 	case 1:
 		printf("Parameter error: Invalid HEX value.\n");
diff --git a/client/emv/cmdemv.c b/client/emv/cmdemv.c
index c40a9a69..33a519b1 100644
--- a/client/emv/cmdemv.c
+++ b/client/emv/cmdemv.c
@@ -51,8 +51,7 @@ int CmdHFEMVSelect(const char *cmd) {
 	bool leaveSignalON = arg_get_lit(2);
 	bool APDULogging = arg_get_lit(3);
 	bool decodeTLV = arg_get_lit(4);
-	if (arg_get_str_len(5))
-		CLIGetStrBLessWithReturn(5, data, &datalen, 0);
+	CLIGetStrBLessWithReturn(5, data, &datalen, 0);
 	CLIParserFree();
 	
 	SetAPDULogging(APDULogging);