-/****************************************************************************
-Set a fd into nonblocking mode. Uses POSIX O_NONBLOCK if available,
-else
-if SYSV use O_NDELAY
-if BSD use FNDELAY
-****************************************************************************/
-int set_nonblocking(int fd)
-{
- int val;
-#ifdef O_NONBLOCK
-#define FLAG_TO_SET O_NONBLOCK
-#else
-#ifdef SYSV
-#define FLAG_TO_SET O_NDELAY
-#else /* BSD */
-#define FLAG_TO_SET FNDELAY
-#endif
-#endif
-
- if((val = fcntl(fd, F_GETFL, 0)) == -1)
- return -1;
- val |= FLAG_TO_SET;
- return fcntl( fd, F_SETFL, val);
-#undef FLAG_TO_SET
-}
-
-