8000 Fix missing error check in set_clo_on_exec for FD_CLOEXEC handling by tomasandroil · Pull Request #117 · arun11299/cpp-subprocess · GitHub
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Fix missing error check in set_clo_on_exec for FD_CLOEXEC handling #117

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Apr 28, 2025
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Fix missing error check in set_clo_on_exec for FD_CLOEXEC handling #117

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8 changes: 6 additions & 2 deletions subprocess.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -471,10 +471,14 @@ namespace util
void set_clo_on_exec(int fd, bool set = true)
{
int flags = fcntl(fd, F_GETFD, 0);
if (flags == -1) {
throw OSError("fcntl F_GETFD failed", errno);
}
if (set) flags |= FD_CLOEXEC;
else flags &= ~FD_CLOEXEC;
//TODO: should check for errors
fcntl(fd, F_SETFD, flags);
if (fcntl(fd, F_SETFD, flags) == -1) {
throw OSError("fcntl F_SETFD failed", errno);
}
}


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