X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/3668df05ec90178e7b10efe9790e7aed49099519..7d4ba60e8e1b169822ff64a870b9f976585cb97c:/client/cliparser/cliparser.c

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");