diff options
| -rw-r--r-- | src/input/Prbs.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/input/Prbs.cpp b/src/input/Prbs.cpp index b9e244b..8e5a9ae 100644 --- a/src/input/Prbs.cpp +++ b/src/input/Prbs.cpp @@ -46,17 +46,23 @@ const uint32_t PRBS_DEFAULT_POLY = (1 << 19) | (1 << 16) | 1; int Prbs::open(const string& name) { - if (name.empty()) { + if (name.substr(0, 7) != "prbs://") { + throw logic_error("Invalid PRBS name"); + } + + const string& url_polynomial = name.substr(7); + + if (url_polynomial.empty()) { m_prbs.setup(PRBS_DEFAULT_POLY); } else { - if (name[0] != ':') { + if (url_polynomial[0] != ':') { throw invalid_argument( "Invalid PRBS address format. " "Must be prbs://:polynomial."); } - const string poly_str = name.substr(1); + const string poly_str = url_polynomial.substr(1); long polynomial = hexparse(poly_str); |