Check fork failed

quark-zju · Nov 9, 2014 · 9133424 · 9133424
1 parent c3e14a2
commit 9133424
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/src/ljudge.cc b/src/ljudge.cc
@@ -1507,6 +1507,11 @@ static LrunResult lrun(
 #endif
 
   pid_t pid = fork();
+  if (pid == -1) {
+    log_debug("failed to fork\n");
+    result.error = "cannot fork to run lrun";
+    return result;
+  }
   if (pid) {
     close(pipe_fd[1]);