Show error message if ReadConfigFile fails

A runaway exception was raised if ReadConfigFile fails (usually
due to a parse error in bitcoin.conf). Show an error message instead.

Fixes #4013.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index 4882a00532..17aa0c9d4b 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -70,7 +70,13 @@ bool AppInit(int argc, char* argv[])
             fprintf(stderr, "Error: Specified data directory \"%s\" does not exist.\n", mapArgs["-datadir"].c_str());
             return false;
         }
-        ReadConfigFile(mapArgs, mapMultiArgs);
+        try
+        {
+            ReadConfigFile(mapArgs, mapMultiArgs);
+        } catch(std::exception &e) {
+            fprintf(stderr,"Error reading configuration file: %s\n", e.what());
+            return false;
+        }
         // Check for -testnet or -regtest parameter (TestNet() calls are only valid after this clause)
         if (!SelectParamsFromCommandLine()) {
             fprintf(stderr, "Error: Invalid combination of -regtest and -testnet.\n");