1#include <sys/signalfd.h>
2#include <signal.h>
3#include <errno.h>
4#include <fcntl.h>
5#include "syscall.h"
6
7int signalfd(int fd, const sigset_t *sigs, int flags)
8{
9 int ret = __syscall(SYS_signalfd4, fd, sigs, _NSIG/8, flags);
10#ifdef SYS_signalfd
11 if (ret != -ENOSYS) return __syscall_ret(ret);
12 ret = __syscall(SYS_signalfd, fd, sigs, _NSIG/8);
13 if (ret >= 0) {
14 if (flags & SFD_CLOEXEC)
15 __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
16 if (flags & SFD_NONBLOCK)
17 __syscall(SYS_fcntl, ret, F_SETFL, O_NONBLOCK);
18 }
19#endif
20 return __syscall_ret(ret);
21}