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#include <sys/socket.h>
#include <fcntl.h>
int
accept4(int s, struct sockaddr *addr, socklen_t *addrlen, int flags)
{
int rets = accept(s, addr, addrlen);
if (rets == -1)
return s;
if (flags & SOCK_CLOEXEC) {
flags = fcntl(s, F_GETFD);
fcntl(rets, F_SETFD, flags | FD_CLOEXEC);
}
return rets;
}
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