diff --git a/net/sock.c b/net/sock.c
index f31491b..d5a8f51 100644
--- a/net/sock.c
+++ b/net/sock.c
@@ -314,6 +314,15 @@ int sock_write(sock_t sock, const char *fmt, ...)
 	return sock_write_bytes(sock, buff, strlen(buff));
 }
 
+int sock_write_fmt(sock_t sock, char *fmt, va_list ap)
+{
+    char buff[1024];
+
+    vsnprintf(buff, 1024, fmt, ap);
+
+    return sock_write_bytes(sock, buff, strlen(buff));
+}
+
 int sock_read_bytes(sock_t sock, char *buff, const int len)
 {
 
diff --git a/net/sock.h b/net/sock.h
index 6944bd0..c4d78e7 100644
--- a/net/sock.h
+++ b/net/sock.h
@@ -22,6 +22,7 @@
 #ifndef __SOCK_H
 #define __SOCK_H
 
+#include <stdarg.h>
 
 #ifdef _WIN32
 #include <winsock2.h>
@@ -87,6 +88,7 @@ int sock_connected (int sock, unsigned timeout);
 /* Socket write functions */
 int sock_write_bytes(sock_t sock, const void *buff, const size_t len);
 int sock_write(sock_t sock, const char *fmt, ...);
+int sock_write_fmt(sock_t sock, char *fmt, va_list ap);
 int sock_write_string(sock_t sock, const char *buff);
 ssize_t sock_writev (int sock, const struct iovec *iov, const size_t count);