1 files changed, 38 insertions, 1 deletions
diff --git a/reference.c b/reference.c
index 1f5b74b..8ec6271 100644
--- a/reference.c
+++ b/reference.c
@@ -69,4 +69,41 @@ getaddrinfo("www.example.com", "http", &hints, &res);
 // assuming the first one is good (like many of these examples do).
 // See the section on client/server for real examples.
 
-s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
-\ No newline at end of file
+s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
+
+// order is 
+getaddrinfo();
+socket();
+bind();
+listen();
+/* accept() goes here */ 
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+int sendall(int s, char *buf, int *len)
+{
+    int total = 0;        // how many bytes we've sent
+    int bytesleft = *len; // how many we have left to send
+    int n;
+
+    while(total < *len) {
+        n = send(s, buf+total, bytesleft, 0);
+        if (n == -1) { break; }
+        total += n;
+        bytesleft -= n;
+    }
+
+    *len = total; // return number actually sent here
+
+    return n==-1?-1:0; // return -1 on failure, 0 on success
+} 
+
+char buf[10] = "Beej!";
+int len;
+
+len = strlen(buf);
+if (sendall(s, buf, &len) == -1) {
+    perror("sendall");
+    printf("We only sent %d bytes because of the error!\n", len);
+} 
+\ No newline at end of file