Indent.

Fix mem leak on errors.

src/libgcrypt.c

@@ -102,17 +102,18 @@ int _libssh2_dsa_new(libssh2_dsa_ctx **dsactx,
 		     const unsigned char *y,
 		     unsigned long y_len)
 {
-  int rc;
+	int rc;
 
-  rc = gcry_sexp_build (dsactx, NULL, "(public-key(dsa(p%b)(q%b)(g%b)(y%b)))",
-			p_len, p, q_len, q, g_len, g, y_len, y);
-  if (rc)
-    {
-      *dsactx = NULL;
-      return -1;
-    }
+	rc = gcry_sexp_build (dsactx, NULL,
+			      "(public-key(dsa(p%b)(q%b)(g%b)(y%b)))",
+			      p_len, p, q_len, q, g_len, g, y_len, y);
+	if (rc)
+	{
+		*dsactx = NULL;
+		return -1;
+	}
 
-  return 0;
+	return 0;
 }
 
 
@@ -122,34 +123,34 @@ int _libssh2_dsa_sha1_verify(libssh2_dsa_ctx *dsactx,
 			     const unsigned char *m,
 			     unsigned long m_len)
 {
-  unsigned char hash[SHA_DIGEST_LENGTH+1];
-  int ret;
-  gcry_sexp_t s_sig, s_hash;
-  int rc = -1;
+	unsigned char hash[SHA_DIGEST_LENGTH+1];
+	int ret;
+	gcry_sexp_t s_sig, s_hash;
+	int rc = -1;
 
-  libssh2_sha1(m, m_len, hash+1);
-  hash[0] = 0;
+	libssh2_sha1(m, m_len, hash+1);
+	hash[0] = 0;
 
-  rc = gcry_sexp_build (&s_hash, NULL, "(data(flags raw)(value %b))",
-			SHA_DIGEST_LENGTH+1, hash);
-  if (rc != 0)
-    {
-      return -1;
-    }
+	rc = gcry_sexp_build (&s_hash, NULL, "(data(flags raw)(value %b))",
+			      SHA_DIGEST_LENGTH+1, hash);
+	if (rc != 0)
+	{
+		return -1;
+	}
 
-  rc = gcry_sexp_build (&s_sig, NULL, "(sig-val(dsa(r %b)(s %b)))",
-			20, sig, 20, sig + 20);
-  if (rc != 0)
-    {
-      gcry_sexp_release (s_hash);
-      return -1;
-    }
+	rc = gcry_sexp_build (&s_sig, NULL, "(sig-val(dsa(r %b)(s %b)))",
+			      20, sig, 20, sig + 20);
+	if (rc != 0)
+	{
+		gcry_sexp_release (s_hash);
+		return -1;
+	}
 
-  rc = gcry_pk_verify (s_sig, s_hash, dsactx);
-  gcry_sexp_release (s_sig);
-  gcry_sexp_release (s_hash);
+	rc = gcry_pk_verify (s_sig, s_hash, dsactx);
+	gcry_sexp_release (s_sig);
+	gcry_sexp_release (s_hash);
 
-  return (rc == 0) ? 0 : -1;
+	return (rc == 0) ? 0 : -1;
 }
 
 int _libssh2_cipher_init (_libssh2_cipher_ctx *h,
@@ -158,8 +159,9 @@ int _libssh2_cipher_init (_libssh2_cipher_ctx *h,
 			  unsigned char *secret,
 			  int encrypt)
 {
-	int mode = 0, keylen, err;
-	keylen = gcry_cipher_get_algo_keylen (algo);
+	int mode = 0, err;
+	int keylen = gcry_cipher_get_algo_keylen (algo);
+
 	if (algo != GCRY_CIPHER_ARCFOUR)
 	{
 		mode = GCRY_CIPHER_MODE_CBC;
@@ -174,6 +176,7 @@ int _libssh2_cipher_init (_libssh2_cipher_ctx *h,
 	err = gcry_cipher_setkey (*h, secret, keylen);
 	if (err)
 	{
+		gcry_cipher_close (*h);
 		return -1;
 	}
 
@@ -183,6 +186,7 @@ int _libssh2_cipher_init (_libssh2_cipher_ctx *h,
 		err = gcry_cipher_setiv (*h, iv, blklen);
 		if (err)
 		{
+			gcry_cipher_close (*h);
 			return -1;
 		}
 	}