main.cpp: check log level range before using its value

(Silently) ignore invalid -l loglevel specs. This avoids a crash reported in bug #1071.
2018-01-02 22:13:06 +01:00 · 2018-01-02 22:13:06 +01:00 · ed6f8680ba
parent 83c59147c7
commit ed6f8680ba
1 changed files with 4 additions and 0 deletions
--- a/main.cpp
+++ b/main.cpp
@ -121,6 +121,10 @@ int main(int argc, char *argv[])
 		case 'l':
 		{
 			const int loglevel = atoi(optarg);
+			if (loglevel < 0 || loglevel > 5) {
+				qDebug() << "ERROR: invalid log level spec.";
+				break;
+			}
 			context->set_log_level(sigrok::LogLevel::get(loglevel));

 #ifdef ENABLE_DECODE