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cmUVProcessChain: Tolerate fileno() of invalid FILE stream

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On Windows, in a GUI process without a console, the `std{in,out,err}`
standard FILE streams may not be open.  Avoid passing an invalid file
descriptor to the child process, and let libuv attach NUL instead.

Fixes: #25625
This commit is contained in:
Brad King
2024-01-24 10:27:20 -05:00
parent b6e4e4babc
commit adb3e13d32
1 changed files with 5 additions and 1 deletions
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6
Source/cmUVProcessChain.cxx
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@@ -122,7 +122,11 @@ cmUVProcessChainBuilder& cmUVProcessChainBuilder::SetExternalStream(
cmUVProcessChainBuilder& cmUVProcessChainBuilder::SetExternalStream(
Stream stdio, FILE* stream)
{
return this->SetExternalStream(stdio, cm_fileno(stream));
int fd = cm_fileno(stream);
if (fd >= 0) {
return this->SetExternalStream(stdio, fd);
}
return this->SetNoStream(stdio);
}
cmUVProcessChainBuilder& cmUVProcessChainBuilder::SetMergedBuiltinStreams()