src/unistd/fchdir.c

   1 #include <unistd.h>
   2 #include <errno.h>
   3 #include <fcntl.h>
   4 #include "syscall.h"
   5
   6 void __procfdname(char *, unsigned);
   7
   8 int fchdir(int fd)
   9 {
  10         int ret = __syscall(SYS_fchdir, fd);
  11         if (ret != -EBADF || __syscall(SYS_fcntl, fd, F_GETFD) < 0)
  12                 return __syscall_ret(ret);
  13
  14         char buf[15+3*sizeof(int)];
  15         __procfdname(buf, fd);
  16         return syscall(SYS_chdir, buf);
  17 }