From 659e87fe1cf3348a4e9f1bacfe205316fefd8a51 Mon Sep 17 00:00:00 2001
From: Brent Cook <busterb@gmail.com>
Date: Tue, 7 Oct 2025 03:49:29 -0500
Subject: move ftruncate to common libcompat for tests

---
 crypto/CMakeLists.txt     |  4 ++++
 crypto/Makefile.am        |  4 ++++
 crypto/compat/ftruncate.c | 17 +++++++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 crypto/compat/ftruncate.c

(limited to 'crypto')

diff --git a/crypto/CMakeLists.txt b/crypto/CMakeLists.txt
index aacd2a7..137cf70 100644
--- a/crypto/CMakeLists.txt
+++ b/crypto/CMakeLists.txt
@@ -624,6 +624,10 @@ if(NOT HAVE_FREEZERO)
 	set(COMPAT_SRC ${COMPAT_SRC} compat/freezero.c)
 endif()
 
+if(NOT HAVE_FTRUNCATE)
+	set(COMPAT_SRC ${COMPAT_SRC} compat/ftruncate.c)
+endif()
+
 if(NOT HAVE_GETDELIM)
 	set(COMPAT_SRC ${COMPAT_SRC} compat/getdelim.c)
 endif()
diff --git a/crypto/Makefile.am b/crypto/Makefile.am
index a116996..7fea236 100644
--- a/crypto/Makefile.am
+++ b/crypto/Makefile.am
@@ -148,6 +148,10 @@ if !HAVE_FREEZERO
 libcompat_la_SOURCES += compat/freezero.c
 endif
 
+if !HAVE_FTRUNCATE
+libcompat_la_SOURCES += compat/ftruncate.c
+endif
+
 if !HAVE_GETDELIM
 libcompat_la_SOURCES += compat/getdelim.c
 endif
diff --git a/crypto/compat/ftruncate.c b/crypto/compat/ftruncate.c
new file mode 100644
index 0000000..e825e50
--- /dev/null
+++ b/crypto/compat/ftruncate.c
@@ -0,0 +1,17 @@
+/*
+ * Public domain
+ *
+ * Kinichiro Inoguchi <inoguchi@openbsd.org>
+ */
+
+#ifdef _WIN32
+
+#include <unistd.h>
+
+int
+ftruncate(int fd, off_t length)
+{
+	return _chsize(fd, length);
+}
+
+#endif
-- 
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