From e2ff0ad27390a5b50af914080926304ef8e503cf Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Thu, 18 Apr 2024 21:25:36 +0200
Subject: [PATCH] libc: Propagate errors correctly in shadow functions

---
 libc/src/shadow.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libc/src/shadow.cpp b/libc/src/shadow.cpp
index 4b3eaa9a..65caa796 100644
--- a/libc/src/shadow.cpp
+++ b/libc/src/shadow.cpp
@@ -16,7 +16,7 @@ extern "C"
     {
         struct spwd* result;
 
-        getspent_r(&spwd, s_buf, sizeof(s_buf), &result);
+        if (getspent_r(&spwd, s_buf, sizeof(s_buf), &result) < 0) return nullptr;
 
         return result;
     }
@@ -28,7 +28,7 @@ extern "C"
         if (!f)
         {
             f = fopen("/etc/shadow", "r");
-            if (!f) return 0;
+            if (!f) return -1;
             fcntl(fileno(f), F_SETFD, FD_CLOEXEC);
         }