int __ntp_mpe_fcntl(int fd, int cmd, int arg) { int len; struct sockaddr sa; extern int sfcntl(int, int, int); len = sizeof sa; if (getsockname(fd, &sa, &len) == -1) { if (errno == EAFNOSUPPORT) /* AF_UNIX socket */ return sfcntl(fd, cmd, arg); if (errno == ENOTSOCK) /* file or pipe */ return fcntl(fd, cmd, arg); return (-1); /* unknown getsockname() failure */ } else /* AF_INET socket */ return sfcntl(fd, cmd, arg); }
/* * curlx_nonblock() set the given socket to either blocking or non-blocking * mode based on the 'nonblock' boolean argument. This function is highly * portable. */ int curlx_nonblock(curl_socket_t sockfd, /* operate on this */ int nonblock /* true or false */) { #if defined(USE_BLOCKING_SOCKETS) return 0; /* returns success */ #elif defined(HAVE_FCNTL_O_NONBLOCK) /* most recent unix versions */ int flags; flags = sfcntl(sockfd, F_GETFL, 0); if(nonblock) return sfcntl(sockfd, F_SETFL, flags | O_NONBLOCK); else return sfcntl(sockfd, F_SETFL, flags & (~O_NONBLOCK)); #elif defined(HAVE_IOCTL_FIONBIO) /* older unix versions */ int flags = nonblock ? 1 : 0; return ioctl(sockfd, FIONBIO, &flags); #elif defined(HAVE_IOCTLSOCKET_FIONBIO) /* Windows */ unsigned long flags = nonblock ? 1UL : 0UL; return ioctlsocket(sockfd, FIONBIO, &flags); #elif defined(HAVE_IOCTLSOCKET_CAMEL_FIONBIO) /* Amiga */ long flags = nonblock ? 1L : 0L; return IoctlSocket(sockfd, FIONBIO, flags); #elif defined(HAVE_SETSOCKOPT_SO_NONBLOCK) /* BeOS */ long b = nonblock ? 1L : 0L; return setsockopt(sockfd, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b)); #else # error "no non-blocking method was found/used/set" #endif }