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Kernel: Fix SYS_FCNTL command handling :)

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I had misunderstood how these work
This commit is contained in:
Bananymous
2024-12-03 16:11:03 +02:00
parent e6a2f55a59
commit 0fab7ad63b
4 changed files with 20 additions and 18 deletions
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15
kernel/kernel/OpenFileDescriptorSet.cpp
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@@ -202,20 +202,23 @@ namespace Kernel
{
TRY(validate_fd(fd));
constexpr int creation_flags = O_CLOEXEC | O_CREAT | O_DIRECTORY | O_EXCL | O_NOCTTY | O_NOFOLLOW | O_TRUNC | O_TTY_INIT;
dprintln("fcntl({} ('{}'), {}, {H})", fd, m_open_files[fd]->path(), cmd, extra);
switch (cmd)
{
case F_GETFD:
return m_open_files[fd]->flags;
return m_open_files[fd]->flags & FD_CLOEXEC;
case F_SETFD:
// FIXME: validate permissions to set access flags
m_open_files[fd]->flags = extra;
m_open_files[fd]->flags &= ~FD_CLOEXEC;
m_open_files[fd]->flags |= extra & FD_CLOEXEC;
dprintln(" set CLOEXEC to {}", !!(m_open_files[fd]->flags & FD_CLOEXEC));
return 0;
case F_GETFL:
return m_open_files[fd]->flags & ~creation_flags;
return m_open_files[fd]->flags & ~(O_APPEND | O_DSYNC | O_NONBLOCK | O_RSYNC | O_SYNC | O_ACCMODE);
case F_SETFL:
m_open_files[fd]->flags |= extra & ~(O_ACCMODE | creation_flags);
m_open_files[fd]->flags &= ~O_NONBLOCK;
m_open_files[fd]->flags |= extra & O_NONBLOCK;
dprintln(" set NONBLOCK to {}", !!(m_open_files[fd]->flags & O_NONBLOCK));
return 0;
default:
break;