enum { SIGNAL_NAME_BUFSIZE = 7 + INT_STRLEN(int) + 1 };
const char *signal_name(int signum, char *namebuf, size_t bufsize);
void xsigaction(int signum, const struct sigaction *, struct sigaction *old);
enum { SIGNAL_NAME_BUFSIZE = 7 + INT_STRLEN(int) + 1 };
const char *signal_name(int signum, char *namebuf, size_t bufsize);
void xsigaction(int signum, const struct sigaction *, struct sigaction *old);