#include #include "sig.h" int sig_alarm = SIGALRM; int sig_child = SIGCHLD; int sig_cont = SIGCONT; int sig_hangup = SIGHUP; int sig_pipe = SIGPIPE; int sig_term = SIGTERM; void (*sig_defaulthandler)() = SIG_DFL; void (*sig_ignorehandler)() = SIG_IGN;