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* dtable.cc (dtable::init_std_file_from_handle): Set access mask for

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the slave side of ttys explicitely.  Explain why.
This commit is contained in:
Corinna Vinschen
2010-04-21 18:44:39 +00:00
parent 27f1db48c7
commit 179bee57db
2 changed files with 8 additions and 2 deletions
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5
winsup/cygwin/dtable.cc
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@@ -363,8 +363,9 @@ dtable::init_std_file_from_handle (int fd, HANDLE handle)
FILE_ACCESS_INFORMATION fai;
/* Console windows are not kernel objects, so the access mask returned
by NtQueryInformationFile is meaningless. */
if (dev == FH_TTY || dev == FH_CONSOLE)
by NtQueryInformationFile is meaningless. CMD always hands down
stdin handles as R/O handles, but our tty slave sides are R/W. */
if (dev == FH_TTY || dev == FH_CONSOLE || dev.major == DEV_TTYS_MAJOR)
access |= GENERIC_READ | GENERIC_WRITE;
else if (NT_SUCCESS (NtQueryInformationFile (handle, &io, &fai,
sizeof fai,