diff options
Diffstat (limited to 'win32')
| -rw-r--r-- | win32/win32.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/win32/win32.c b/win32/win32.c index 8497e487b2..1f8a845818 100644 --- a/win32/win32.c +++ b/win32/win32.c @@ -1883,15 +1883,33 @@ rb_w32_open_osfhandle(long osfhandle, int flags) static void init_stdhandle(void) { + int nullfd = -1; + int keep = 0; +#define open_null(fd) \ + (((nullfd < 0) ? \ + (nullfd = open("NUL", O_RDWR|O_BINARY)) : 0), \ + ((nullfd == (fd)) ? (keep = 1) : dup2(nullfd, fd)), \ + (fd)) + if (fileno(stdin) < 0) { - stdin->_file = 0; + stdin->_file = open_null(0); + } + else { + setmode(fileno(stdin), O_BINARY); } if (fileno(stdout) < 0) { - stdout->_file = 1; + stdout->_file = open_null(1); + } + else { + setmode(fileno(stdout), O_BINARY); } if (fileno(stderr) < 0) { - stderr->_file = 2; + stderr->_file = open_null(2); + } + else { + setmode(fileno(stderr), O_BINARY); } + if (nullfd >= 0 && !keep) close(nullfd); setvbuf(stderr, NULL, _IONBF, 0); } #else |