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#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include "syscall.h"
int fchdir(int fd)
{
int ret = __syscall(SYS_fchdir, fd);
if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
return __syscall_ret(ret);
char buf[15+3*sizeof(int)];
__procfdname(buf, fd);
return syscall(SYS_chdir, buf);
}
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