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fix 'lf em 4x50_read - now checks if have enough data in Graphbuffer

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iceman1001 2019-09-19 13:12:48 +02:00
commit a3161ae9a2
1 changed files with 6 additions and 0 deletions
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6
client/cmdlfem4x.c
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@ -821,6 +821,12 @@ int EM4x50Read(const char *Cmd, bool verbose) {
uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0}; uint8_t bits[MAX_GRAPH_TRACE_LEN] = {0};
size_t size = getFromGraphBuf(bits); size_t size = getFromGraphBuf(bits);
if (size < 4000) {
if (verbose || g_debugMode) PrintAndLogEx(ERR, "Error: EM4x50 - Too little data in Graphbuffer");
return PM3_ESOFT;
}
computeSignalProperties(bits, size); computeSignalProperties(bits, size);
signal_t *sp = getSignalProperties(); signal_t *sp = getSignalProperties();