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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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6
Libraries/LibC/unistd.cpp
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@ -265,6 +265,12 @@ int chdir(const char* path)
__RETURN_WITH_ERRNO(rc, rc, -1);
}
int fchdir(int fd)
{
int rc = syscall(SC_fchdir, fd);
__RETURN_WITH_ERRNO(rc, rc, -1);
}
char* getcwd(char* buffer, size_t size)
{
if (!buffer) {

1
Libraries/LibC/unistd.h
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@ -68,6 +68,7 @@ int close(int fd);
pid_t waitpid(pid_t, int* wstatus, int options);
pid_t wait(int* wstatus);
int chdir(const char* path);
int fchdir(int fd);
char* getcwd(char* buffer, size_t size);
char* getwd(char* buffer);
int fstat(int fd, struct stat* statbuf);