1 files changed, 15 insertions, 1 deletions
diff --git a/lib/sha1.c b/lib/sha1.c
index c5e45a9..26516b1 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -5,10 +5,20 @@
 * https://opensource.org/licenses/MIT
 ***/
 
+#ifndef SHA1DC_NO_STANDARD_INCLUDES
 #include <string.h>
 #include <memory.h>
 #include <stdio.h>
 #include <stdlib.h>
+#endif
+
+#ifdef SHA1DC_CUSTOM_INCLUDE_SHA1_C
+#include SHA1DC_CUSTOM_INCLUDE_SHA1_C
+#endif
+
+#ifndef SHA1DC_INIT_SAFE_HASH_DEFAULT
+#define SHA1DC_INIT_SAFE_HASH_DEFAULT 1
+#endif
 
 #include "sha1.h"
 #include "ubc_check.h"
@@ -1689,7 +1699,7 @@ void SHA1DCInit(SHA1_CTX* ctx)
 	ctx->ihv[3] = 0x10325476;
 	ctx->ihv[4] = 0xC3D2E1F0;
 	ctx->found_collision = 0;
-	ctx->safe_hash = 1;
+	ctx->safe_hash = SHA1DC_INIT_SAFE_HASH_DEFAULT;
 	ctx->ubc_check = 1;
 	ctx->detect_coll = 1;
 	ctx->reduced_round_coll = 0;
@@ -1824,3 +1834,7 @@ int SHA1DCFinal(unsigned char output[20], SHA1_CTX *ctx)
 	output[19] = (unsigned char)(ctx->ihv[4]);
 	return ctx->found_collision;
 }
+
+#ifdef SHA1DC_CUSTOM_TRAILING_INCLUDE_SHA1_C
+#include SHA1DC_CUSTOM_TRAILING_INCLUDE_SHA1_C
+#endif