added write demo functions

1 files changed, 9 insertions, 1 deletions

diff --git a/src/pack.c b/src/pack.c
index 0fa3274..b9a23be 100644
--- a/src/pack.c
+++ b/src/pack.c
@@ -1,10 +1,18 @@
 #include <stdio.h>
 
-int reverseint(const unsigned char in[4])
+int frombigendian(const unsigned char in[4])
 {
     return (in[0] << 24) | (in[1] << 16) | (in[2] << 8) | in[3];
 }
 
+void tobigendian(const int in, unsigned char out[4])
+{
+    out[0] = (in >> 24) & 0xff;
+    out[1] = (in >> 16) & 0xff;
+    out[2] = (in >> 8) & 0xff;
+    out[3] = in & 0xff;
+}
+
 int readint(unsigned char **cp)
 {
     int result = 0;