26 lines
736 B
C
26 lines
736 B
C
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#include <sys/socket.h>
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#include <fcntl.h>
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#include <errno.h>
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#include "syscall.h"
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int socketpair(int domain, int type, int protocol, int fd[2])
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{
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int r = socketcall(socketpair, domain, type, protocol, fd, 0, 0);
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if (r<0 && (errno==EINVAL || errno==EPROTONOSUPPORT)
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&& (type&(SOCK_CLOEXEC|SOCK_NONBLOCK))) {
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r = socketcall(socketpair, domain,
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type & ~(SOCK_CLOEXEC|SOCK_NONBLOCK),
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protocol, fd, 0, 0);
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if (r < 0) return r;
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if (type & SOCK_CLOEXEC) {
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__syscall(SYS_fcntl, fd[0], F_SETFD, FD_CLOEXEC);
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__syscall(SYS_fcntl, fd[1], F_SETFD, FD_CLOEXEC);
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}
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if (type & SOCK_NONBLOCK) {
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__syscall(SYS_fcntl, fd[0], F_SETFL, O_NONBLOCK);
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__syscall(SYS_fcntl, fd[1], F_SETFL, O_NONBLOCK);
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}
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}
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return r;
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}
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