From dd4d7e713290d9cecbebc6933e41d027bac63c8f Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Date: Fri, 22 Nov 2019 11:28:31 +0100
Subject: Add fchownat/fchmodat mockups to libcompat for Windows

Not pretty, but definitely prettier than #ifdef hell.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
---
 include/compat.h         |  7 +++++++
 lib/compat/Makemodule.am |  3 ++-
 lib/compat/mockups.c     | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 58 insertions(+), 1 deletion(-)
 create mode 100644 lib/compat/mockups.c

diff --git a/include/compat.h b/include/compat.h
index fae9d92..53c2e93 100644
--- a/include/compat.h
+++ b/include/compat.h
@@ -98,6 +98,13 @@ struct stat {
 	(((x)&0x00000fffULL) << 8) | \
         (((y)&0xffffff00ULL) << 12) | \
 	(((y)&0x000000ffULL)) )
+
+#define AT_FDCWD (0xDEADBEEF)
+#define AT_SYMLINK_NOFOLLOW (0x01)
+
+int fchownat(int dirfd, const char *path, int uid, int gid, int flags);
+
+int fchmodat(int dirfd, const char *path, int mode, int flags);
 #else
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/lib/compat/Makemodule.am b/lib/compat/Makemodule.am
index c197fb0..7ba3444 100644
--- a/lib/compat/Makemodule.am
+++ b/lib/compat/Makemodule.am
@@ -1,4 +1,5 @@
 libcompat_a_SOURCES = lib/compat/getline.c lib/compat/getsubopt.c
-libcompat_a_SOURCES += lib/compat/strndup.c include/compat.h
+libcompat_a_SOURCES += lib/compat/strndup.c lib/compat/mockups.c
+libcompat_a_SOURCES += include/compat.h
 
 noinst_LIBRARIES += libcompat.a
diff --git a/lib/compat/mockups.c b/lib/compat/mockups.c
new file mode 100644
index 0000000..22f0820
--- /dev/null
+++ b/lib/compat/mockups.c
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * mockups.c
+ *
+ * Copyright (C) 2019 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+#include "compat.h"
+
+#ifdef _WIN32
+int fchownat(int dirfd, const char *path, int uid, int gid, int flags)
+{
+	if (dirfd != AT_FDCWD) {
+		fputs("[FIXME] fchownat stub only supports AT_FDCWD!\n",
+		      stderr);
+		return -1;
+	}
+
+	if (flags != 0 && flags != AT_SYMLINK_NOFOLLOW) {
+		fputs("[FIXME] fchownat stub used with an unknown flag!\n",
+		      stderr);
+		return -1;
+	}
+
+	(void)path;
+	(void)uid;
+	(void)gid;
+	return 0;
+}
+
+int fchmodat(int dirfd, const char *path, int mode, int flags)
+{
+	if (dirfd != AT_FDCWD) {
+		fputs("[FIXME] fchmodat stub only supports AT_FDCWD!\n",
+		      stderr);
+		return -1;
+	}
+
+	if (flags != 0 && flags != AT_SYMLINK_NOFOLLOW) {
+		fputs("[FIXME] fchmodat stub used with an unknown flag!\n",
+		      stderr);
+		return -1;
+	}
+
+	(void)path;
+	(void)mode;
+	return 0;
+}
+#endif
-- 
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