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
}
