Refine #1133 second time (#1136)

src/encrypt.c

@@ -197,7 +197,9 @@ static const CCAlgorithm supported_ciphers_applecc[CIPHER_NUM] = {
     kCCAlgorithmInvalid,
     kCCAlgorithmInvalid,
     kCCAlgorithmInvalid,
+#if SODIUM_LIBRARY_VERSION_MAJOR >= 8
     kCCAlgorithmInvalid
+#endif
 };
 
 static const CCMode supported_modes_applecc[CIPHER_NUM] = {
@@ -221,7 +223,9 @@ static const CCMode supported_modes_applecc[CIPHER_NUM] = {
     kCCAlgorithmInvalid,
     kCCAlgorithmInvalid,
     kCCAlgorithmInvalid,
+#if SODIUM_LIBRARY_VERSION_MAJOR >= 8
     kCCAlgorithmInvalid
+#endif
 };
 #endif
 
@@ -1303,7 +1307,11 @@ enc_key_init(int method, const char *pass)
         FATAL("Failed to initialize sodium");
     }
 
+#if SODIUM_LIBRARY_VERSION_MAJOR >= 8
     if (method == SALSA20 || method == CHACHA20 || method == CHACHA20IETF) {
+#else
+    if (method == SALSA20 || method == CHACHA20) {
+#endif
 #if defined(USE_CRYPTO_OPENSSL)
         cipher.info    = NULL;
         cipher.key_len = supported_ciphers_key_size[method];

src/encrypt.h

@@ -134,7 +134,9 @@ typedef struct {
 #define SEED_CFB            17
 #define SALSA20             18
 #define CHACHA20            19
+#if SODIUM_LIBRARY_VERSION_MAJOR >= 8
 #define CHACHA20IETF        20
+#endif
 
 #define ONETIMEAUTH_FLAG 0x10
 #define ADDRTYPE_MASK 0xEF

src/utils.c

@@ -278,9 +278,15 @@ usage()
     printf(
         "                                  camellia-256-cfb, cast5-cfb, des-cfb,\n");
     printf(
+#if SODIUM_LIBRARY_VERSION_MAJOR >= 8
         "                                  idea-cfb, rc2-cfb, seed-cfb, salsa20,\n");
     printf(
         "                                  chacha20 and chacha20-ietf.\n");
+#else
+        "                                  idea-cfb, rc2-cfb, seed-cfb, salsa20 and\n");
+    printf(
+        "                                  chacha20.\n");
+#endif
     printf(
         "                                  The default cipher is rc4-md5.\n");
     printf("\n");