src/unistd/fchdir.c

   1 #include <unistd.h>
   2 #include <errno.h>
   3 #include <fcntl.h>
   4 #include "syscall.h"
   5
   6 int fchdir(int fd)
   7 {
   8         int ret = __syscall(SYS_fchdir, fd);
   9         if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
  10                 return __syscall_ret(ret);
  11
  12         char buf[15+3*sizeof(int)];
  13         __procfdname(buf, fd);
  14         return syscall(SYS_chdir, buf);
  15 }