Add transmission methods

1 files changed, 7 insertions, 0 deletions

diff --git a/program.c b/program.c
index 6004ccb..299b829 100644
--- a/program.c
+++ b/program.c
@@ -11,6 +11,13 @@
 #define READ_END 0
 #define WRITE_END 1
 
+int program_empty_callback(char *data, int size, void *userdata) {
+    (void)data;
+    (void)size;
+    (void)userdata;
+    return 0;
+}
+
 int program_exec(const char **args, ProgramOutputCallback output_callback, void *userdata) {
     /* 1 arguments */
     if(args[0] == NULL)