diff options
Diffstat (limited to 'winsup/cygwin/fork.cc')
| -rw-r--r-- | winsup/cygwin/fork.cc | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/winsup/cygwin/fork.cc b/winsup/cygwin/fork.cc index 7e8ad534f..8a1daf7e6 100644 --- a/winsup/cygwin/fork.cc +++ b/winsup/cygwin/fork.cc @@ -514,13 +514,24 @@ out: be called in subproc handling. */ ProtectHandle1 (pi.hProcess, childhProc); - slow_pid_reuse (pi.hProcess); - /* Fill in fields in the child's process table entry. */ forked->hProcess = pi.hProcess; forked->dwProcessId = pi.dwProcessId; forked->copysigs(myself); - forked.remember (); + + /* Hopefully, this will succeed. The alternative to doing things this + way is to reserve space prior to calling CreateProcess and then fill + it in afterwards. This requires more bookkeeping than I like, though, + so we'll just do it the easy way. So, terminate any child process if + we can't actually record the pid in the internal table. */ + if (!forked.remember ()) + { + TerminateProcess (pi.hProcess, 1); + set_errno (EAGAIN); + goto cleanup; + } + + slow_pid_reuse (pi.hProcess); /* Wait for subproc to initialize itself. */ if (!sync_with_child(pi, subproc_ready, TRUE, "waiting for longjmp")) |