diff options
author | Christopher Faylor <me@cgf.cx> | 2012-06-04 05:26:05 +0400 |
---|---|---|
committer | Christopher Faylor <me@cgf.cx> | 2012-06-04 05:26:05 +0400 |
commit | b9c61a8d7b5b9bc43b3605c93fdee85c6dd04f13 (patch) | |
tree | e0bdbe1960fa0b274f8d0cc3ad582121af32af86 /winsup/cygwin/dtable.cc | |
parent | 3143cb7c00fc1b6f4d75a83ac28f3bfbc5d2e658 (diff) |
* dtable.cc (dtable::dup3): Only return with lock set when O_EXCL flag is
passed in.
* syscalls.cc (dup_finish): Pass O_EXCL in flags to dtable::dup3.
Diffstat (limited to 'winsup/cygwin/dtable.cc')
-rw-r--r-- | winsup/cygwin/dtable.cc | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/winsup/cygwin/dtable.cc b/winsup/cygwin/dtable.cc index 059d782d0..0ca64da2e 100644 --- a/winsup/cygwin/dtable.cc +++ b/winsup/cygwin/dtable.cc @@ -714,6 +714,14 @@ dtable::dup3 (int oldfd, int newfd, int flags) debug_printf ("dup3 (%d, %d, %p)", oldfd, newfd, flags); lock (); bool do_unlock = true; + bool unlock_on_return; + if (!(flags & O_EXCL)) + unlock_on_return = true; /* Relinquish lock on return */ + else + { + flags &= ~O_EXCL; + unlock_on_return = false; /* Return with lock set on success */ + } if (not_open (oldfd)) { @@ -761,11 +769,11 @@ dtable::dup3 (int oldfd, int newfd, int flags) goto done; } - do_unlock = false; fds[newfd] = newfh; if ((res = newfd) <= 2) set_std_handle (res); + do_unlock = unlock_on_return; done: MALLOC_CHECK; |