3 files changed, 40 insertions, 25 deletions

diff --git a/src/win32/posix.h b/src/win32/posix.h
index 60adc9666..d13d3e39b 100644
--- a/src/win32/posix.h
+++ b/src/win32/posix.h
@@ -49,5 +49,7 @@ extern int p_open(const char *path, int flags);
 extern int p_creat(const char *path, mode_t mode);
 extern int p_getcwd(char *buffer_out, size_t size);
 extern int p_rename(const char *from, const char *to);
+extern int p_recv(GIT_SOCKET socket, void *buffer, size_t length, int flags);
+extern int p_send(GIT_SOCKET socket, const void *buffer, size_t length, int flags);
 
 #endif
diff --git a/src/win32/posix_w32.c b/src/win32/posix_w32.c
index c6b36a847..8af664165 100644
--- a/src/win32/posix_w32.c
+++ b/src/win32/posix_w32.c
@@ -4,7 +4,7 @@
  * This file is part of libgit2, distributed under the GNU GPL v2 with
  * a Linking Exception. For full terms see the included COPYING file.
  */
-#include "posix.h"
+#include "../posix.h"
 #include "path.h"
 #include "utf-conv.h"
 #include <errno.h>
@@ -179,11 +179,11 @@ int p_readlink(const char *link, char *target, size_t target_len)
 	target_w = (wchar_t*)git__malloc(target_len * sizeof(wchar_t));
 	GITERR_CHECK_ALLOC(target_w);
 
-	dwRet = pGetFinalPath(hFile, target_w, target_len, 0x0);
+	dwRet = pGetFinalPath(hFile, target_w, (DWORD)target_len, 0x0);
 	if (dwRet == 0 ||
 		dwRet >= target_len ||
 		!WideCharToMultiByte(CP_UTF8, 0, target_w, -1, target,
-			target_len * sizeof(char), NULL, NULL))
+			(int)(target_len * sizeof(char)), NULL, NULL))
 		error = -1;
 
 	git__free(target_w);
@@ -241,13 +241,19 @@ int p_creat(const char *path, mode_t mode)
 
 int p_getcwd(char *buffer_out, size_t size)
 {
-	wchar_t* buf = (wchar_t*)git__malloc(sizeof(wchar_t) * (int)size);
 	int ret;
+	wchar_t* buf;
+
+	if ((size_t)((int)size) != size)
+		return -1;
+
+	buf = (wchar_t*)git__malloc(sizeof(wchar_t) * (int)size);
+	GITERR_CHECK_ALLOC(buf);
 
 	_wgetcwd(buf, (int)size);
 
 	ret = WideCharToMultiByte(
-		CP_UTF8, 0, buf, -1, buffer_out, size, NULL, NULL);
+		CP_UTF8, 0, buf, -1, buffer_out, (int)size, NULL, NULL);
 
 	git__free(buf);
 	return !ret ? -1 : 0;
@@ -421,3 +427,19 @@ int p_rename(const char *from, const char *to)
 
 	return ret;
 }
+
+int p_recv(GIT_SOCKET socket, void *buffer, size_t length, int flags)
+{
+	if ((size_t)((int)length) != length)
+		return -1; /* giterr_set will be done by caller */
+
+	return recv(socket, buffer, (int)length, flags);
+}
+
+int p_send(GIT_SOCKET socket, const void *buffer, size_t length, int flags)
+{
+	if ((size_t)((int)length) != length)
+		return -1; /* giterr_set will be done by caller */
+
+	return send(socket, buffer, (int)length, flags);
+}
diff --git a/src/win32/utf-conv.c b/src/win32/utf-conv.c
index f00f5be92..fbcb69d0a 100644
--- a/src/win32/utf-conv.c
+++ b/src/win32/utf-conv.c
@@ -31,27 +31,23 @@ void gitwin_set_utf8(void)
 wchar_t* gitwin_to_utf16(const char* str)
 {
 	wchar_t* ret;
-	int cb;
+	size_t cb;
 
 	if (!str)
 		return NULL;
 
 	cb = strlen(str) * sizeof(wchar_t);
-	if (cb == 0) {
-		ret = (wchar_t*)git__malloc(sizeof(wchar_t));
-		if (ret)
-			ret[0] = 0;
-		return ret;
-	}
+	if (cb == 0)
+		return (wchar_t *)git__calloc(1, sizeof(wchar_t));
 
 	/* Add space for null terminator */
 	cb += sizeof(wchar_t);
 
-	ret = (wchar_t*)git__malloc(cb);
+	ret = (wchar_t *)git__malloc(cb);
 	if (!ret)
 		return NULL;
 
-	if (MultiByteToWideChar(_active_codepage, 0, str, -1, ret, cb) == 0) {
+	if (MultiByteToWideChar(_active_codepage, 0, str, -1, ret, (int)cb) == 0) {
 		giterr_set(GITERR_OS, "Could not convert string to UTF-16");
 		git__free(ret);
 		ret = NULL;
@@ -62,7 +58,7 @@ wchar_t* gitwin_to_utf16(const char* str)
 
 int gitwin_append_utf16(wchar_t *buffer, const char *str, size_t len)
 {
-	int result = MultiByteToWideChar(_active_codepage, 0, str, -1, buffer, len);
+	int result = MultiByteToWideChar(_active_codepage, 0, str, -1, buffer, (int)len);
 	if (result == 0)
 		giterr_set(GITERR_OS, "Could not convert string to UTF-16");
 	return result;
@@ -71,19 +67,14 @@ int gitwin_append_utf16(wchar_t *buffer, const char *str, size_t len)
 char* gitwin_from_utf16(const wchar_t* str)
 {
 	char* ret;
-	int cb;
+	size_t cb;
 
-	if (!str) {
+	if (!str)
 		return NULL;
-	}
 
 	cb = wcslen(str) * sizeof(char);
-	if (cb == 0) {
-		ret = (char*)git__malloc(sizeof(char));
-		if (ret)
-			ret[0] = 0;
-		return ret;
-	}
+	if (cb == 0)
+		return (char *)git__calloc(1, sizeof(char));
 
 	/* Add space for null terminator */
 	cb += sizeof(char);
@@ -92,7 +83,7 @@ char* gitwin_from_utf16(const wchar_t* str)
 	if (!ret)
 		return NULL;
 
-	if (WideCharToMultiByte(_active_codepage, 0, str, -1, ret, cb, NULL, NULL) == 0) {
+	if (WideCharToMultiByte(_active_codepage, 0, str, -1, ret, (int)cb, NULL, NULL) == 0) {
 		giterr_set(GITERR_OS, "Could not convert string to UTF-8");
 		git__free(ret);
 		ret = NULL;