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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2006-12-06 14:58:46 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2006-12-06 14:58:46 +0000
commit4abaf3a579a3fd4a748dcaef83f3a2912db48c23 (patch)
treeee06759c26852725642b59d5632a2e1307a6c621 /win32
parent24f3250be10d111b2f9455bb21245caf23938f1f (diff)
* win32/win32.c (init_stdhandle): redirect unopened IOs to NUL.
[ruby-core:09572] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@11362 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'win32')
-rw-r--r--win32/win32.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/win32/win32.c b/win32/win32.c
index a8e755e1ff..a50a5f4808 100644
--- a/win32/win32.c
+++ b/win32/win32.c
@@ -1731,15 +1731,24 @@ 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);
}
if (fileno(stdout) < 0) {
- stdout->_file = 1;
+ stdout->_file = open_null(1);
}
if (fileno(stderr) < 0) {
- stderr->_file = 2;
+ stderr->_file = open_null(2);
}
+ if (nullfd >= 0 && !keep) close(nullfd);
}
#else