From 0c2cf3f8ffbcb86e51844390abb94b79481d92b3 Mon Sep 17 00:00:00 2001
From: Jorj Bauer <jorj@jorj.org>
Date: Sat, 1 Aug 2020 20:42:13 -0400
Subject: [PATCH] get actual return value from ::write()

---
 nix/nix-filemanager.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/nix/nix-filemanager.cpp b/nix/nix-filemanager.cpp
index 83f2489..9793d16 100644
--- a/nix/nix-filemanager.cpp
+++ b/nix/nix-filemanager.cpp
@@ -210,9 +210,9 @@ int NixFileManager::write(int8_t fd, const void *buf, int nbyte)
       close(ffd);
       return -1;
     }
-    ret = ::write(ffd, buf, nbyte);
-    if (ret != nbyte) {
-      printf("error writing: %d\n", errno);
+    ssize_t rv = ::write(ffd, buf, nbyte);
+    if (rv != nbyte) {
+      printf("error writing: %d; wanted to write %d got %d\n", errno, nbyte, ret);
     }
     close(ffd);
   } else {