From 05690cd479ec4ed9646afbc764f0dcb264b861e8 Mon Sep 17 00:00:00 2001
From: Mouse <mouse008@gmail.com>
Date: Tue, 27 Jun 2017 18:32:32 -0400
Subject: [PATCH] Fix compiler warnings

---
 gost12sum.c               | 4 ++--
 gost_ameth.c              | 8 ++++----
 gost_ec_keyx.c            | 1 -
 gost_grasshopper_cipher.c | 1 -
 4 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/gost12sum.c b/gost12sum.c
index d6a50ed..f59bc05 100644
--- a/gost12sum.c
+++ b/gost12sum.c
@@ -216,7 +216,7 @@ int hash_stream(gost_hash_ctx * ctx, int fd, char *sum)
     unsigned char buffer[BUF_SIZE];
     unsigned char reverted_buffer[BUF_SIZE];
     ssize_t bytes;
-    int i, j, k;
+
     start_hash12(ctx);
     while ((bytes = read(fd, buffer, BUF_SIZE)) > 0) {
         hash12_block(ctx, reverted_buffer, bytes);
@@ -225,7 +225,7 @@ int hash_stream(gost_hash_ctx * ctx, int fd, char *sum)
         return 0;
     }
     finish_hash12(ctx, buffer);
-    for (i = 0; i < (hashsize / 8); i++) {
+    for (size_t i = 0; i < (hashsize / 8); i++) {
         sprintf(sum + 2 * i, "%02x", buffer[i]);
     }
     return 1;
diff --git a/gost_ameth.c b/gost_ameth.c
index b2333a4..005fbf7 100644
--- a/gost_ameth.c
+++ b/gost_ameth.c
@@ -641,11 +641,11 @@ static int pub_decode_gost_ec(EVP_PKEY *pk, X509_PUBKEY *pub)
     const unsigned char *pubkey_buf = NULL;
     unsigned char *databuf;
     ASN1_OBJECT *palgobj = NULL;
-    int pub_len, i, j;
+    int pub_len;
     EC_POINT *pub_key;
     BIGNUM *X, *Y;
     ASN1_OCTET_STRING *octet = NULL;
-    int len;
+    size_t len;
     const EC_GROUP *group;
 
     if (!X509_PUBKEY_get0_param(&palgobj, &pubkey_buf, &pub_len, &palg, pub))
@@ -698,8 +698,8 @@ static int pub_encode_gost_ec(X509_PUBKEY *pub, const EVP_PKEY *pk)
     ASN1_OBJECT *algobj = NULL;
     ASN1_OCTET_STRING *octet = NULL;
     void *pval = NULL;
-    unsigned char *buf = NULL, *databuf = NULL, *sptr;
-    int i, j, data_len, ret = -1;
+    unsigned char *buf = NULL, *databuf = NULL;
+    int data_len, ret = -1;
     const EC_POINT *pub_key;
     BIGNUM *X = NULL, *Y = NULL, *order = NULL;
     const EC_KEY *ec = EVP_PKEY_get0((EVP_PKEY *)pk);
diff --git a/gost_ec_keyx.c b/gost_ec_keyx.c
index 0684676..30d8e58 100644
--- a/gost_ec_keyx.c
+++ b/gost_ec_keyx.c
@@ -26,7 +26,6 @@ static int VKO_compute_key(unsigned char *shared_key, size_t shared_key_size,
     BIGNUM *UKM = NULL, *p = NULL, *order = NULL, *X = NULL, *Y = NULL;
     const BIGNUM *key = EC_KEY_get0_private_key(priv_key);
     EC_POINT *pnt = EC_POINT_new(EC_KEY_get0_group(priv_key));
-    int i;
     BN_CTX *ctx = BN_CTX_new();
     EVP_MD_CTX *mdctx = NULL;
     const EVP_MD *md = NULL;
diff --git a/gost_grasshopper_cipher.c b/gost_grasshopper_cipher.c
index b33fe53..23ba575 100644
--- a/gost_grasshopper_cipher.c
+++ b/gost_grasshopper_cipher.c
@@ -526,7 +526,6 @@ int gost_grasshopper_cipher_cleanup(EVP_CIPHER_CTX* ctx) {
 int gost_grasshopper_set_asn1_parameters(EVP_CIPHER_CTX* ctx, ASN1_TYPE* params) {
     int len = 0;
     unsigned char* buf = NULL;
-    unsigned char* p = NULL;
     ASN1_OCTET_STRING* os = NULL;
 
     os = ASN1_OCTET_STRING_new();
-- 
2.39.2