From 3681d02253d29229e265720984ce81a35206de4c Mon Sep 17 00:00:00 2001
From: kinichiro <kinichiro.inoguchi@gmail.com>
Date: Sun, 25 Feb 2018 01:59:39 +0900
Subject: Add compat bits for libtls on Windows

---
 tls/CMakeLists.txt     | 10 ++++++++++
 tls/Makefile.am        |  7 +++++++
 tls/compat/ftruncate.c | 13 +++++++++++++
 tls/compat/getuid.c    | 14 ++++++++++++++
 tls/compat/pread.c     | 23 +++++++++++++++++++++++
 tls/compat/pwrite.c    | 23 +++++++++++++++++++++++
 6 files changed, 90 insertions(+)
 create mode 100644 tls/compat/ftruncate.c
 create mode 100644 tls/compat/getuid.c
 create mode 100644 tls/compat/pread.c
 create mode 100644 tls/compat/pwrite.c

(limited to 'tls')

diff --git a/tls/CMakeLists.txt b/tls/CMakeLists.txt
index bc0c8f5..0e13da5 100644
--- a/tls/CMakeLists.txt
+++ b/tls/CMakeLists.txt
@@ -19,6 +19,16 @@ set(
 	tls_verify.c
 )
 
+if(CMAKE_HOST_WIN32)
+set(
+	TLS_SRC
+	${TLS_SRC}
+	compat/ftruncate.c
+	compat/getuid.c
+	compat/pread.c
+	compat/pwrite.c
+)
+endif()
 
 if(NOT "${OPENSSLDIR}" STREQUAL "")
 	add_definitions(-D_PATH_SSL_CA_FILE=\"${OPENSSLDIR}/cert.pem\")
diff --git a/tls/Makefile.am b/tls/Makefile.am
index bfe9571..58c0344 100644
--- a/tls/Makefile.am
+++ b/tls/Makefile.am
@@ -30,3 +30,10 @@ libtls_la_SOURCES += tls_peer.c
 libtls_la_SOURCES += tls_util.c
 libtls_la_SOURCES += tls_verify.c
 noinst_HEADERS = tls_internal.h
+
+if HOST_WIN
+libtls_la_SOURCES += compat/ftruncate.c
+libtls_la_SOURCES += compat/getuid.c
+libtls_la_SOURCES += compat/pread.c
+libtls_la_SOURCES += compat/pwrite.c
+endif
diff --git a/tls/compat/ftruncate.c b/tls/compat/ftruncate.c
new file mode 100644
index 0000000..e68e6d0
--- /dev/null
+++ b/tls/compat/ftruncate.c
@@ -0,0 +1,13 @@
+/*
+ * Public domain
+ *
+ * Kinichiro Inoguchi <inoguchi@openbsd.org>
+ */
+
+#include <unistd.h>
+
+int
+ftruncate(int fd, off_t length)
+{
+	return _chsize(fd, length);
+}
diff --git a/tls/compat/getuid.c b/tls/compat/getuid.c
new file mode 100644
index 0000000..632967a
--- /dev/null
+++ b/tls/compat/getuid.c
@@ -0,0 +1,14 @@
+/*
+ * Public domain
+ *
+ * Kinichiro Inoguchi <inoguchi@openbsd.org>
+ */
+
+#include <unistd.h>
+
+uid_t
+getuid(void)
+{
+	/* Windows fstat sets 0 as st_uid */
+	return 0;
+}
diff --git a/tls/compat/pread.c b/tls/compat/pread.c
new file mode 100644
index 0000000..f0c9a2f
--- /dev/null
+++ b/tls/compat/pread.c
@@ -0,0 +1,23 @@
+/*
+ * Public domain
+ *
+ * Kinichiro Inoguchi <inoguchi@openbsd.org>
+ */
+
+#include <unistd.h>
+
+ssize_t
+pread(int d, void *buf, size_t nbytes, off_t offset)
+{
+	off_t cpos, opos, rpos;
+	ssize_t bytes;
+	if((cpos = lseek(d, 0, SEEK_CUR)) == -1)
+		return -1;
+	if((opos = lseek(d, offset, SEEK_SET)) == -1)
+		return -1;
+	if((bytes = read(d, buf, nbytes)) == -1)
+		return -1;
+	if((rpos = lseek(d, cpos, SEEK_SET)) == -1)
+		return -1;
+	return bytes;
+}
diff --git a/tls/compat/pwrite.c b/tls/compat/pwrite.c
new file mode 100644
index 0000000..a304f7a
--- /dev/null
+++ b/tls/compat/pwrite.c
@@ -0,0 +1,23 @@
+/*
+ * Public domain
+ *
+ * Kinichiro Inoguchi <inoguchi@openbsd.org>
+ */
+
+#include <unistd.h>
+
+ssize_t
+pwrite(int d, const void *buf, size_t nbytes, off_t offset)
+{
+	off_t cpos, opos, rpos;
+	ssize_t bytes;
+	if((cpos = lseek(d, 0, SEEK_CUR)) == -1)
+		return -1;
+	if((opos = lseek(d, offset, SEEK_SET)) == -1)
+		return -1;
+	if((bytes = write(d, buf, nbytes)) == -1)
+		return -1;
+	if((rpos = lseek(d, cpos, SEEK_SET)) == -1)
+		return -1;
+	return bytes;
+}
-- 
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