int common_channels(userrec *u, userrec *u2);
void chop(char* str);
void tidystring(char* str);
-void safedelete(chanrec *p);
-void safedelete(userrec *p);
void Blocking(int s);
void NonBlocking(int s);
int CleanAndResolve (char *resolvedHost, const char *unresolvedHost);