From ee7558a9b7900047033644241f0d7e6f62813e8c Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Sat, 8 Oct 2022 12:42:25 +0200
Subject: [PATCH] Add a perror() function

---
 libs/libc/include/stdio.h | 1 +
 libs/libc/src/stdio.cpp   | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/libs/libc/include/stdio.h b/libs/libc/include/stdio.h
index f2528129..adea55f3 100644
--- a/libs/libc/include/stdio.h
+++ b/libs/libc/include/stdio.h
@@ -35,6 +35,7 @@ extern "C"
     int vsprintf(char*, const char*, va_list);
     int vsnprintf(char*, size_t, const char*, va_list);
     int puts(const char*);
+    void perror(const char*);
 
 #ifdef __cplusplus
 }
diff --git a/libs/libc/src/stdio.cpp b/libs/libc/src/stdio.cpp
index eecf7621..a59357ad 100644
--- a/libs/libc/src/stdio.cpp
+++ b/libs/libc/src/stdio.cpp
@@ -1,3 +1,4 @@
+#include <errno.h>
 #include <luna.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -78,4 +79,9 @@ extern "C"
         va_end(ap);
         return written;
     }
+    void perror(const char* s) // FIXME: Print to stderr, whenever we have an stderr.
+    {
+        if (s && *s) { printf("%s: ", s); }
+        printf("%s\n", strerror(errno));
+    }
 }
\ No newline at end of file