From 104d433088c9a8455748f594a39f9e23f080d48a Mon Sep 17 00:00:00 2001
From: misomosi <misomosispi@gmail.com>
Date: Tue, 7 May 2024 00:42:16 -0400
Subject: [PATCH] Add POSIX write example

---
 examples/write.c | 15 +++++++++++++++
 pld.h            | 20 +++++++++++---------
 2 files changed, 26 insertions(+), 9 deletions(-)
 create mode 100644 examples/write.c

diff --git a/examples/write.c b/examples/write.c
new file mode 100644
index 0000000..9620caf
--- /dev/null
+++ b/examples/write.c
@@ -0,0 +1,15 @@
+// PLDLOG uses write by default so redefine it to do nothing
+#define PLDLOG(err, buf, len) (void)err, (void)buf, (void)len
+#include "../pld.h"
+
+PLD("libc.so.6");
+long write(int fd, void *buf, unsigned long len)
+{
+	return PFN(write)(fd, buf, len);
+}
+
+int main(void)
+{
+	write(1, "Hello World!\n", 13);
+	return 0;
+}
diff --git a/pld.h b/pld.h
index f103b88..52ebbe6 100644
--- a/pld.h
+++ b/pld.h
@@ -27,10 +27,6 @@ static int PLD_Private_strlen(const char *s)
 
 #ifdef _WIN32
 #include <windows.h>
-static void *PLD_Private_ErrCode(void)
-{
-	return (void *)(DWORD_PTR)GetLastError();
-}
 static void PLD_Private_WriteString(const char *s)
 {
 	DWORD dummy;
@@ -48,12 +44,7 @@ static void PLD_Private_FormatError(void *code, char *s, int len, const char *na
 		(va_list *)&arg);
 }
 #else // _WIN32
-#include <unistd.h>
 #include <dlfcn.h>
-static void *PLD_Private_ErrCode(void)
-{
-	return dlerror();
-}
 static void PLD_Private_WriteString(const char *s)
 {
 	write(2, s, PLD_Private_strlen(s));
@@ -143,10 +134,16 @@ static PLD_ProcAddress PLD_Private_dlsym(PLD_LibHandle handle, const char *name)
 	return GetProcAddress(handle, name);
 }
 
+static void *PLD_Private_ErrCode(void)
+{
+	return (void *)(DWORD_PTR)GetLastError();
+}
+
 #else // _WIN32
 
 #ifndef PLD_PRIVATE_LOG_INCLUDED
 #include <dlfcn.h>
+#include <stddef.h>
 #endif
 
 typedef void *PLD_LibHandle;
@@ -169,6 +166,11 @@ static PLD_ProcAddress PLD_Private_dlsym(PLD_LibHandle handle, const char *name)
 	return dlsym(handle, name);
 }
 
+static void *PLD_Private_ErrCode(void)
+{
+	return dlerror();
+}
+
 #endif // _WIN32
 
 static PLD_ProcAddress PLD_Private_dlsym_wrapper(PLD_LibHandle handle, const char *name)
-- 
2.49.1