diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-01-21 10:20:54 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-06-24 10:04:13 -0300 |
| commit | d0c40833862f5cfe4d03d9130d79c1d93f284af0 (patch) | |
| tree | 71ceace106baf9f2f930b71058fe3445d94ad3fb /posix/fork.c | |
| parent | 9a7565403758f65c07fe3705e966381d9cfd35b6 (diff) | |
| download | glibc-d0c40833862f5cfe4d03d9130d79c1d93f284af0.tar.gz glibc-d0c40833862f5cfe4d03d9130d79c1d93f284af0.tar.xz glibc-d0c40833862f5cfe4d03d9130d79c1d93f284af0.zip | |
posix: Do not clobber errno by atfork handlers
Checked on x86_64-linux-gnu.
Diffstat (limited to 'posix/fork.c')
| -rw-r--r-- | posix/fork.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/posix/fork.c b/posix/fork.c index 44caf8d166..940d6a0955 100644 --- a/posix/fork.c +++ b/posix/fork.c @@ -103,6 +103,9 @@ __libc_fork (void) } else { + /* If _Fork failed, preserve its errno value. */ + int save_errno = errno; + /* Release acquired locks in the multi-threaded case. */ if (multiple_threads) { @@ -115,6 +118,9 @@ __libc_fork (void) /* Run the handlers registered for the parent. */ __run_fork_handlers (atfork_run_parent, multiple_threads); + + if (pid < 0) + __set_errno (save_errno); } return pid; |