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Kernel: Fix cloning file descriptions on fork

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After a fork, the parent and the child are supposed to share
the same file description. For example, modifying the current
offset of a file description is visible in both of them.
This commit is contained in:
Sergey Bugaev 2019-08-11 16:07:47 +03:00 • committed by Andreas Kling
parent 2396b2ed70
commit 1606261c58
3 changed files with 1 additions and 22 deletions
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3
Kernel/Process.cpp
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@ -624,8 +624,7 @@ Process::Process(String&& name, uid_t uid, gid_t gid, pid_t ppid, RingLevel ring
#ifdef FORK_DEBUG
dbgprintf("fork: cloning fd %u... (%p) istty? %u\n", i, fork_parent->m_fds[i].description.ptr(), fork_parent->m_fds[i].description->is_tty());
#endif
m_fds[i].description = fork_parent->m_fds[i].description->clone();
m_fds[i].flags = fork_parent->m_fds[i].flags;
m_fds[i] = fork_parent->m_fds[i];
}
} else {
m_fds.resize(m_max_open_file_descriptors);