/* $Cambridge: hermes/src/mailchk/support.h,v 1.1 2003/08/10 22:27:44 dpc22 Exp $ */

void *
xmalloc(unsigned long size);

char *
xstrdup(char *s);

void *
xrealloc(void *old, unsigned long size);

int
os_connect_inet_socket(char *host, unsigned long port);