Fix compiler warning: conversion from "int" to "unsigned char"

may lose significant bits

1 files changed, 5 insertions, 5 deletions

diff --git a/ares_query.c b/ares_query.c
index c7c31ed..3959c0e 100644
--- a/ares_query.c
+++ b/ares_query.c
@@ -53,13 +53,13 @@ void ares__rc4(rc4_key* key, unsigned char *buffer_ptr, int buffer_len)
   state = &key->state[0];
   for(counter = 0; counter < buffer_len; counter ++)
   {
-	x = (x + 1) % 256;
-	y = (state[x] + y) % 256;
-	ARES_SWAP_BYTE(&state[x], &state[y]);
+    x = (unsigned char)((x + 1) % 256);
+    y = (unsigned char)((state[x] + y) % 256);
+    ARES_SWAP_BYTE(&state[x], &state[y]);
 
-	xorIndex = (state[x] + state[y]) % 256;
+    xorIndex = (unsigned char)((state[x] + state[y]) % 256);
 
-	buffer_ptr[counter] ^= state[xorIndex];
+    buffer_ptr[counter] = (unsigned char)(buffer_ptr[counter]^state[xorIndex]);
   }
   key->x = x;
   key->y = y;