3 files changed, 92 insertions, 13 deletions
diff --git a/compat/apple-common-crypto.h b/compat/apple-common-crypto.h
new file mode 100644
index 0000000000..c8b9b0e1a6
--- /dev/null
+++ b/compat/apple-common-crypto.h
@@ -0,0 +1,86 @@
+/* suppress inclusion of conflicting openssl functions */
+#define OPENSSL_NO_MD5
+#define HEADER_HMAC_H
+#define HEADER_SHA_H
+#include <CommonCrypto/CommonHMAC.h>
+#define HMAC_CTX CCHmacContext
+#define HMAC_Init(hmac, key, len, algo) CCHmacInit(hmac, algo, key, len)
+#define HMAC_Update CCHmacUpdate
+#define HMAC_Final(hmac, hash, ptr) CCHmacFinal(hmac, hash)
+#define HMAC_CTX_cleanup(ignore)
+#define EVP_md5(...) kCCHmacAlgMD5
+#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
+#define APPLE_LION_OR_NEWER
+#include <Security/Security.h>
+/* Apple's TYPE_BOOL conflicts with config.c */
+#undef TYPE_BOOL
+#endif
+
+#ifdef APPLE_LION_OR_NEWER
+#define git_CC_error_check(pattern, err) \
+	do { \
+		if (err) { \
+			die(pattern, (long)CFErrorGetCode(err)); \
+		} \
+	} while(0)
+
+#define EVP_EncodeBlock git_CC_EVP_EncodeBlock
+static inline int git_CC_EVP_EncodeBlock(unsigned char *out,
+		const unsigned char *in, int inlen)
+{
+	CFErrorRef err;
+	SecTransformRef encoder;
+	CFDataRef input, output;
+	CFIndex length;
+
+	encoder = SecEncodeTransformCreate(kSecBase64Encoding, &err);
+	git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
+
+	input = CFDataCreate(kCFAllocatorDefault, in, inlen);
+	SecTransformSetAttribute(encoder, kSecTransformInputAttributeName,
+			input, &err);
+	git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
+
+	output = SecTransformExecute(encoder, &err);
+	git_CC_error_check("SecTransformExecute failed: %ld", err);
+
+	length = CFDataGetLength(output);
+	CFDataGetBytes(output, CFRangeMake(0, length), out);
+
+	CFRelease(output);
+	CFRelease(input);
+	CFRelease(encoder);
+
+	return (int)strlen((const char *)out);
+}
+
+#define EVP_DecodeBlock git_CC_EVP_DecodeBlock
+static int inline git_CC_EVP_DecodeBlock(unsigned char *out,
+		const unsigned char *in, int inlen)
+{
+	CFErrorRef err;
+	SecTransformRef decoder;
+	CFDataRef input, output;
+	CFIndex length;
+
+	decoder = SecDecodeTransformCreate(kSecBase64Encoding, &err);
+	git_CC_error_check("SecEncodeTransformCreate failed: %ld", err);
+
+	input = CFDataCreate(kCFAllocatorDefault, in, inlen);
+	SecTransformSetAttribute(decoder, kSecTransformInputAttributeName,
+			input, &err);
+	git_CC_error_check("SecTransformSetAttribute failed: %ld", err);
+
+	output = SecTransformExecute(decoder, &err);
+	git_CC_error_check("SecTransformExecute failed: %ld", err);
+
+	length = CFDataGetLength(output);
+	CFDataGetBytes(output, CFRangeMake(0, length), out);
+
+	CFRelease(output);
+	CFRelease(input);
+	CFRelease(decoder);
+
+	return (int)strlen((const char *)out);
+}
+#endif /* APPLE_LION_OR_NEWER */
diff --git a/compat/clipped-write.c b/compat/clipped-write.c
deleted file mode 100644
index b8f98ff77f..0000000000
--- a/compat/clipped-write.c
+++ /dev/null
@@ -1,13 +0,0 @@
-#include "../git-compat-util.h"
-#undef write
-
-/*
- * Version of write that will write at most INT_MAX bytes.
- * Workaround a xnu bug on Mac OS X
- */
-ssize_t clipped_write(int fildes, const void *buf, size_t nbyte)
-{
-	if (nbyte > INT_MAX)
-		nbyte = INT_MAX;
-	return write(fildes, buf, nbyte);
-}
diff --git a/compat/mingw.c b/compat/mingw.c
index bb92c436f7..22ee9ef1cf 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1086,6 +1086,12 @@ int mingw_kill(pid_t pid, int sig)
 		errno = err_win_to_posix(GetLastError());
 		CloseHandle(h);
 		return -1;
+	} else if (pid > 0 && sig == 0) {
+		HANDLE h = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid);
+		if (h) {
+			CloseHandle(h);
+			return 0;
+		}
 	}
 
 	errno = EINVAL;