rtmpdh: Use GMP functions directly, instead of nettle wrappers
[ffmpeg.git] / libavformat / rtmpdh.c
index 12a64bc..df06bec 100644 (file)
@@ -46,8 +46,8 @@
     "F71C35FDAD44CFD2D74F9208BE258FF324943328F67329C0" \
     "FFFFFFFFFFFFFFFF"
 
-#if CONFIG_NETTLE || CONFIG_GCRYPT
-#if CONFIG_NETTLE
+#if CONFIG_GMP || CONFIG_GCRYPT
+#if CONFIG_GMP
 #define bn_new(bn)                      \
     do {                                \
         bn = av_malloc(sizeof(*bn));    \
 #define bn_sub_word(bn, w)          mpz_sub_ui(bn, bn, w)
 #define bn_cmp_1(bn)                mpz_cmp_ui(bn, 1)
 #define bn_num_bytes(bn)            (mpz_sizeinbase(bn, 2) + 7) / 8
-#define bn_bn2bin(bn, buf, len)     nettle_mpz_get_str_256(len, buf, bn)
+#define bn_bn2bin(bn, buf, len)                     \
+    do {                                            \
+        memset(buf, 0, len);                        \
+        if (bn_num_bytes(bn) <= len)                \
+            mpz_export(buf, NULL, 1, 1, 0, 0, bn);  \
+    } while (0)
 #define bn_bin2bn(bn, buf, len)                     \
     do {                                            \
         bn_new(bn);                                 \
         if (bn)                                     \
-            nettle_mpz_set_str_256_u(bn, len, buf); \
+            mpz_import(bn, len, 1, 1, 0, 0, buf);   \
     } while (0)
 #define bn_hex2bn(bn, buf, ret)                     \
     do {                                            \