forked from sdr/gr-osmosdr
rtl: don't try to parse empty device index values
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2dfc73351f
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2d644d2eae
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@ -101,14 +101,18 @@ rtl_source_c::rtl_source_c (const std::string &args)
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dict_t dict = params_to_dict(args);
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if (dict.count("rtl")) {
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if ( (index = rtlsdr_get_index_by_serial( dict["rtl"].c_str() )) >= 0 ) {
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std::string value = dict["rtl"];
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if ( (index = rtlsdr_get_index_by_serial( value.c_str() )) >= 0 ) {
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dev_index = index; /* use the resolved index value */
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} else { /* use the numeric value of the argument */
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if ( value.length() ) {
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try {
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dev_index = boost::lexical_cast< unsigned int >( dict["rtl"] );
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dev_index = boost::lexical_cast< unsigned int >( value );
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} catch ( std::exception &ex ) {
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throw std::runtime_error(
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"Failed to use '" + dict["rtl"] + "' as index: " + ex.what());
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"Failed to use '" + value + "' as index: " + ex.what());
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}
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}
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}
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}
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