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Kernel: Implement fchdir syscall

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The fchdir() function is equivalent to chdir() except that the
directory that is to be the new current working directory is
specified by a file descriptor.
This commit is contained in:
Mauri de Souza Nunes 2019-09-11 20:18:25 -03:00 • committed by Andreas Kling
parent 26e81ad574
commit 7d85fc00e4
6 changed files with 24 additions and 0 deletions
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13
Kernel/Process.cpp
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@ -1202,6 +1202,19 @@ int Process::sys$chdir(const char* path)
return 0;
}
int Process::sys$fchdir(int fd)
{
auto* description = file_description(fd);
if (!description)
return -EBADF;
if (!description->is_directory())
return -ENOTDIR;
m_cwd = description->custody();
return 0;
}
int Process::sys$getcwd(char* buffer, ssize_t size)
{
if (size < 0)