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| author | Rich Felker <dalias@aerifal.cx> | 2018-02-05 11:31:11 -0500 |
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| committer | Rich Felker <dalias@aerifal.cx> | 2018-02-05 11:31:11 -0500 |
| commit | cd0ae687deadbb05ed373d675e59a36f8915c86d (patch) | |
| tree | 6c2b7c71f648a80e6cd57fd85a7371ff7aa2555d /src/exit | |
| parent | 7c709f2d4f9872d1b445f760b0e68da89e256b9e (diff) | |
| download | musl-cd0ae687deadbb05ed373d675e59a36f8915c86d.tar.gz musl-cd0ae687deadbb05ed373d675e59a36f8915c86d.tar.xz musl-cd0ae687deadbb05ed373d675e59a36f8915c86d.zip | |
revert regression in faccessat AT_EACCESS robustness
commit f9fb20b42da0e755d93de229a5a737d79a0e8f60 switched from using a pipe for the result to conveying it via the child process exit status. Alexander Monakov pointed out that the latter could fail if the application is not expecting faccessat to produce a child and performs a wait operation with __WCLONE or __WALL, and that it is not clear whether it's guaranteed to work when SIGCHLD's disposition has been set to SIG_IGN. in addition, that commit introduced a bug that caused EACCES to be produced instead of EBUSY due to an exit path that was overlooked when the error channel was changed, and introduced a spurious retry loop around the wait operation.
Diffstat (limited to 'src/exit')
0 files changed, 0 insertions, 0 deletions