ref: 57f8b3d1acf273a88568c49d0b83b6863485b9e0
dir: /sys/src/ape/lib/bsd/socketpair.c/
/* posix */ #include <sys/types.h> #include <unistd.h> #include <stdlib.h> #include <errno.h> /* bsd extensions */ #include <sys/uio.h> #include <sys/socket.h> int socketpair(int domain, int type, int protocol, int *sv) { switch(domain){ case PF_UNIX: return pipe(sv); default: errno = EOPNOTSUPP; return -1; } }