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-rw-r--r--src/qt/guiutil.cpp20
1 files changed, 19 insertions, 1 deletions
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index 4327de9b0c..947a4c6821 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -107,6 +107,23 @@ QFont fixedPitchFont()
#endif
}
+// Just some dummy data to generate an convincing random-looking (but consistent) address
+static const uint8_t dummydata[] = {0xeb,0x15,0x23,0x1d,0xfc,0xeb,0x60,0x92,0x58,0x86,0xb6,0x7d,0x06,0x52,0x99,0x92,0x59,0x15,0xae,0xb1,0x72,0xc0,0x66,0x47};
+
+// Generate a dummy address with invalid CRC, starting with the network prefix.
+static std::string DummyAddress(const CChainParams &params)
+{
+ std::vector<unsigned char> sourcedata = params.Base58Prefix(CChainParams::PUBKEY_ADDRESS);
+ sourcedata.insert(sourcedata.end(), dummydata, dummydata + sizeof(dummydata));
+ for(int i=0; i<256; ++i) { // Try every trailing byte
+ std::string s = EncodeBase58(begin_ptr(sourcedata), end_ptr(sourcedata));
+ if (!CBitcoinAddress(s).IsValid())
+ return s;
+ sourcedata[sourcedata.size()-1] += 1;
+ }
+ return "";
+}
+
void setupAddressWidget(QValidatedLineEdit *widget, QWidget *parent)
{
parent->setFocusProxy(widget);
@@ -115,7 +132,8 @@ void setupAddressWidget(QValidatedLineEdit *widget, QWidget *parent)
#if QT_VERSION >= 0x040700
// We don't want translators to use own addresses in translations
// and this is the only place, where this address is supplied.
- widget->setPlaceholderText(QObject::tr("Enter a Bitcoin address (e.g. %1)").arg("1NS17iag9jJgTHD1VXjvLCEnZuQ3rJDE9L"));
+ widget->setPlaceholderText(QObject::tr("Enter a Bitcoin address (e.g. %1)").arg(
+ QString::fromStdString(DummyAddress(Params()))));
#endif
widget->setValidator(new BitcoinAddressEntryValidator(parent));
widget->setCheckValidator(new BitcoinAddressCheckValidator(parent));