1*c9945492SAndroid Build Coastguard Worker #define _GNU_SOURCE
2*c9945492SAndroid Build Coastguard Worker #include <sys/socket.h>
3*c9945492SAndroid Build Coastguard Worker #include <errno.h>
4*c9945492SAndroid Build Coastguard Worker #include <fcntl.h>
5*c9945492SAndroid Build Coastguard Worker #include "syscall.h"
6*c9945492SAndroid Build Coastguard Worker
accept4(int fd,struct sockaddr * restrict addr,socklen_t * restrict len,int flg)7*c9945492SAndroid Build Coastguard Worker int accept4(int fd, struct sockaddr *restrict addr, socklen_t *restrict len, int flg)
8*c9945492SAndroid Build Coastguard Worker {
9*c9945492SAndroid Build Coastguard Worker if (!flg) return accept(fd, addr, len);
10*c9945492SAndroid Build Coastguard Worker int ret = socketcall_cp(accept4, fd, addr, len, flg, 0, 0);
11*c9945492SAndroid Build Coastguard Worker if (ret>=0 || (errno != ENOSYS && errno != EINVAL)) return ret;
12*c9945492SAndroid Build Coastguard Worker if (flg & ~(SOCK_CLOEXEC|SOCK_NONBLOCK)) {
13*c9945492SAndroid Build Coastguard Worker errno = EINVAL;
14*c9945492SAndroid Build Coastguard Worker return -1;
15*c9945492SAndroid Build Coastguard Worker }
16*c9945492SAndroid Build Coastguard Worker ret = accept(fd, addr, len);
17*c9945492SAndroid Build Coastguard Worker if (ret<0) return ret;
18*c9945492SAndroid Build Coastguard Worker if (flg & SOCK_CLOEXEC)
19*c9945492SAndroid Build Coastguard Worker __syscall(SYS_fcntl, ret, F_SETFD, FD_CLOEXEC);
20*c9945492SAndroid Build Coastguard Worker if (flg & SOCK_NONBLOCK)
21*c9945492SAndroid Build Coastguard Worker __syscall(SYS_fcntl, ret, F_SETFL, O_NONBLOCK);
22*c9945492SAndroid Build Coastguard Worker return ret;
23*c9945492SAndroid Build Coastguard Worker }
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