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-rw-r--r--src/liblzma/check/check.h32
1 files changed, 23 insertions, 9 deletions
diff --git a/src/liblzma/check/check.h b/src/liblzma/check/check.h
index 0f96f65b..b8902f05 100644
--- a/src/liblzma/check/check.h
+++ b/src/liblzma/check/check.h
@@ -15,7 +15,19 @@
#include "common.h"
-#if defined(HAVE_COMMONCRYPTO_COMMONDIGEST_H)
+// If either the data type or the function for external SHA-256 is missing,
+// use the internal SHA-256 code.
+#if !(defined(HAVE_CC_SHA256_CTX) || defined(HAVE_SHA256_CTX) \
+ || defined(HAVE_SHA2_CTX)) \
+ || !(defined(HAVE_CC_SHA256_INIT) \
+ || defined(HAVE_SHA256_INIT) \
+ || defined(HAVE_SHA256INIT))
+# define HAVE_INTERNAL_SHA256 1
+#endif
+
+#if defined(HAVE_INTERNAL_SHA256)
+// Nothing
+#elif defined(HAVE_COMMONCRYPTO_COMMONDIGEST_H)
# include <CommonCrypto/CommonDigest.h>
#elif defined(HAVE_SHA256_H)
# include <sys/types.h>
@@ -28,13 +40,7 @@
# include <minix/sha2.h>
#endif
-#if defined(HAVE_CC_SHA256_CTX)
-typedef CC_SHA256_CTX lzma_sha256_state;
-#elif defined(HAVE_SHA256_CTX)
-typedef SHA256_CTX lzma_sha256_state;
-#elif defined(HAVE_SHA2_CTX)
-typedef SHA2_CTX lzma_sha256_state;
-#else
+#if defined(HAVE_INTERNAL_SHA256)
/// State for the internal SHA-256 implementation
typedef struct {
/// Internal state
@@ -43,9 +49,17 @@ typedef struct {
/// Size of the message excluding padding
uint64_t size;
} lzma_sha256_state;
+#elif defined(HAVE_CC_SHA256_CTX)
+typedef CC_SHA256_CTX lzma_sha256_state;
+#elif defined(HAVE_SHA256_CTX)
+typedef SHA256_CTX lzma_sha256_state;
+#elif defined(HAVE_SHA2_CTX)
+typedef SHA2_CTX lzma_sha256_state;
#endif
-#if defined(HAVE_CC_SHA256_INIT)
+#if defined(HAVE_INTERNAL_SHA256)
+// Nothing
+#elif defined(HAVE_CC_SHA256_INIT)
# define LZMA_SHA256FUNC(x) CC_SHA256_ ## x
#elif defined(HAVE_SHA256_INIT)
# define LZMA_SHA256FUNC(x) SHA256_ ## x