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Fix redirection of stderr in sys::Program::ExecuteAndWait. There was logic

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error that caused it to redirect stderr to stdout too often.

This fix is applied identically to the win32 code as well, but that is
untested.
--Thi line, and those below, will be ignored--

M    System/Unix/Program.inc
M    System/Win32/Program.inc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52233 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matthijs Kooijman
2008-06-12 12:53:35 +00:00
parent 905261efed
commit cf45ca0408
2 changed files with 19 additions and 9 deletions
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15
lib/System/Unix/Program.inc
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@ -170,14 +170,21 @@ Program::ExecuteAndWait(const Path& path,
case 0: {
// Redirect file descriptors...
if (redirects) {
// Redirect stdin
if (RedirectIO(redirects[0], 0, ErrMsg)) { return -1; }
// Redirect stdout
if (RedirectIO(redirects[1], 1, ErrMsg)) { return -1; }
if (redirects[1] && redirects[2] &&
*(redirects[1]) != *(redirects[2])) {
*(redirects[1]) == *(redirects[2])) {
// If stdout and stderr should go to the same place, redirect stderr
// to the FD already open for stdout.
if (-1 == dup2(1,2)) {
MakeErrMsg(ErrMsg, "Can't redirect stderr to stdout");
return -1;
}
} else {
// Just redirect stderr
if (RedirectIO(redirects[2], 2, ErrMsg)) { return -1; }
} else if (-1 == dup2(1,2)) {
MakeErrMsg(ErrMsg, "Can't redirect");
return -1;
}
}