Fix compilation on Linux.

include/belle-sip/bodyhandler.h

@@ -54,9 +54,9 @@ BELLESIP_EXPORT const void *belle_sip_memory_body_handler_get_buffer(const belle
 
 #define BELLE_SIP_USER_BODY_HANDLER(obj)	BELLE_SIP_CAST(obj,belle_sip_user_body_handler_t)
 
-typedef void (*belle_sip_user_body_handler_recv_callback_t)(belle_sip_user_body_handler_t *obj, belle_sip_message_t *msg, void *user_data, size_t offset, const char* buffer, size_t size);
+typedef void (*belle_sip_user_body_handler_recv_callback_t)(belle_sip_user_body_handler_t *obj, belle_sip_message_t *msg, void *user_data, size_t offset, const uint8_t* buffer, size_t size);
 
-typedef int (*belle_sip_user_body_handler_send_callback_t)(belle_sip_user_body_handler_t *obj, belle_sip_message_t *msg, void *user_data, size_t offset, char* buffer, size_t *size);
+typedef int (*belle_sip_user_body_handler_send_callback_t)(belle_sip_user_body_handler_t *obj, belle_sip_message_t *msg, void *user_data, size_t offset, uint8_t* buffer, size_t *size);
 
 BELLESIP_EXPORT belle_sip_user_body_handler_t *belle_sip_user_body_handler_new(
 	size_t total_size,

tester/belle_http_tester.c

@@ -195,7 +195,7 @@ const char *multipart_boudary=MULTIPART_BOUNDARY;
 
 const int image_size=250000;
 
-static int on_send_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, void *buffer, size_t *size){
+static int on_send_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, uint8_t *buffer, size_t *size){
 	size_t end_of_img=sizeof(MULTIPART_BEGIN)+image_size;
 	if (offset==0){
 		int partlen=sizeof(MULTIPART_BEGIN);
@@ -211,7 +211,7 @@ static int on_send_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *
 		*size=i-offset;
 	}else{
 		*size=sizeof(MULTIPART_END);
-		strncpy(buffer,MULTIPART_END,*size);
+		strncpy((char*)buffer,MULTIPART_END,*size);
 	}
 	return BELLE_SIP_CONTINUE;
 }
@@ -245,7 +245,7 @@ static void https_post_long_body(void){
 	belle_sip_object_unref(l);
 }
 
-static void on_recv_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, const void *buffer, size_t size){
+static void on_recv_body(belle_sip_user_body_handler_t *bh, belle_sip_message_t *msg, void *data, size_t offset, const uint8_t *buffer, size_t size){
 	FILE *file=(FILE*)data;
 	if (file)
 		fwrite(buffer,1,size,file);