X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/0c1cb4aef074f37ac0368103a7e26421705861aa..6923d3f14ff7c6439d708470f4da2edcc3eca854:/client/cmdlfviking.c

diff --git a/client/cmdlfviking.c b/client/cmdlfviking.c
index 8c0656d2..45e4b1d5 100644
--- a/client/cmdlfviking.c
+++ b/client/cmdlfviking.c
@@ -66,7 +66,7 @@ int CmdVikingClone(const char *Cmd) {
 	uint64_t rawID = 0;
 	bool Q5 = false;
 	char cmdp = param_getchar(Cmd, 0);
-	if (strlen(Cmd) < 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
+	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
 
 	id = param_get32ex(Cmd, 0, 0, 16);
 	if (id == 0) return usage_lf_viking_clone();
@@ -89,7 +89,7 @@ int CmdVikingSim(const char *Cmd) {
 	uint8_t clk = 32, encoding = 1, separator = 0, invert = 0;
 	char cmdp = param_getchar(Cmd, 0);
 
-	if (strlen(Cmd) < 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_sim();
+	if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_sim();
 	id = param_get32ex(Cmd, 0, 0, 16);
 	if (id == 0) return usage_lf_viking_sim();