diff --git a/buffer.h b/buffer.h
index 7a801d2..2d64184 100644
--- a/buffer.h
+++ b/buffer.h
@@ -5,11 +5,13 @@ typedef struct buffer {
   char *x;
   unsigned int p;
   unsigned int n;
+  unsigned int a;
   int fd;
   int (*op)();
 } buffer;
 
-#define BUFFER_INIT(op,fd,buf,len) { (buf), 0, (len), (fd), (op) }
+#define BUFFER_INIT(op,fd,buf,len) { (buf), 0, (len), 0, (fd), (op) }
+#define BUFFER_INIT_READ(op,fd,buf,len) { (buf), 0, 0, (len), (fd), (op) }
 #define BUFFER_INSIZE 8192
 #define BUFFER_OUTSIZE 8192
 
diff --git a/socket/fmt_ip6.c b/socket/fmt_ip6.c
index 9c224d6..ee7e25e 100644
--- a/socket/fmt_ip6.c
+++ b/socket/fmt_ip6.c
@@ -16,7 +16,6 @@ unsigned int fmt_ip6(char *s,const char ip[16])
     if (j==12 && ip6_isv4mapped(ip)) {
       temp=ip4_fmt(s,ip+12);
       len+=temp;
-      if (s) s+=temp;
       break;
     }
     temp = ((unsigned long) (unsigned char) ip[j] << 8) +
diff --git a/t.c b/t.c
index ce93d90..7aaa620 100644
--- a/t.c
+++ b/t.c
@@ -20,7 +20,8 @@ int main(int argc,char* argv[]) {
   buffer_flush(buffer_1small);
 #endif
 
-  buf[fmt_xlong(buf,0)]=0;
+  buf[0]=0;
+  buf[fmt_8long(buf,0)]=0;
   puts(buf);
   rdtscl(a);
   c=str_len(buf);