only convert if there actually was a hexstring

2020-10-21 13:25:29 +02:00
parent edda8adbc5
commit 1732242ca4
1 changed files with 1 additions and 1 deletions
--- a/client/deps/cliparser/cliparser.c
+++ b/client/deps/cliparser/cliparser.c
@@ -278,7 +278,7 @@ uint64_t arg_get_u64_hexstr_def(CLIParserContext *ctx, uint8_t paramnum, uint64_
    uint8_t data[8];
    int datalen = 0;
    int res = CLIParamHexToBuf(arg_get_str(ctx, paramnum), data, sizeof(data), &datalen);
-    if (res == 0) {
+    if (res == 0 && datalen > 0) {
        for (uint8_t i = 0; i < datalen; i++) {
            rv <<= 8;
            rv |= data[i];